Gold Fields Limited (GFI) 20-F6 Apr 202019 FY Annual report (foreign)Financial data

Company Profile

Cover Page

Cover Page	12 Months Ended
Cover Page	Dec. 31, 2019shares
Document Information [Line Items]
Document Type	20-F
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	GOLD FIELDS LTD
Entity Central Index Key	0001172724
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding	828,632,707
Document Annual Report	true
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Document Accounting Standard	International Financial Reporting Standards
Entity Incorporation, State or Country Code	T3
Entity Address, Country	ZA
Document Transition Report	false
Document Shell Company Report	false
Document Registration Statement	false
Title of 12(b) Security	Ordinary Shares
Security Exchange Name	NYSE
No Trading Symbol Flag	true
American Depositary Shares [Member]
Document Information [Line Items]
Trading Symbol	GFI
Title of 12(b) Security	American Depositary Shares, each representing one
Security Exchange Name	NYSE

Consolidated income statements

Consolidated income statements - USD ($) $ in Millions		12 Months Ended
Consolidated income statements - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
CONTINUING OPERATIONS
Revenue		$ 2,967.1	$ 2,577.8		$ 2,761.8
Cost of sales		(2,033.5)	(2,043)		(2,105.1)
Investment income		7.3	7.8		5.6
Finance expense		(102.2)	(88)		(81.3)
(Loss)/gain on financial instruments		(238)	21		34.4
Foreign exchange (loss)/gain		(5.2)	6.4		(3.5)
Other costs, net		(67.6)	(44.8)		(19)
Share-based payments		(20.5)	(37.5)		(26.8)
Long-term incentive plan		(9.1)	(1.1)	[1]	(5)	[1]
Exploration expense		(84.4)	(104.2)		(109.8)
Share of results of equity accounted investees, net of taxation		3.1	(13.1)		(1.3)
Profit on disposal of Maverix Metals Incorporated		14.6	0		0
Restructuring costs		(0.6)	(113.9)		(9.2)
Silicosis settlement costs		1.6	4.5	[1]	(30.2)	[1]
Gain on acquisition of Asanko		0	51.8	[1]	0	[1]
Impairment, net of reversal of impairment of investments and assets		(9.8)	(520.3)		(200.2)
Profit/(loss) on disposal of assets		1.2	(51.6)		4
Profit/(loss) before royalties and taxation		424	(348.2)		214.4
Royalties	[1]	(73.7)	(62.5)		(62)
Profit/(loss) before taxation		350.3	(410.7)		152.4
Mining and income taxation		(175.6)	65.9	[1]	(173.2)	[1]
Profit/(loss) from continuing operations		174.7	(344.8)	[1]	(20.8)	[1]
DISCONTINUED OPERATIONS
Profit from discontinued operations, net of taxation		0	0		13.1
Profit/(loss) for the year		174.7	(344.8)		(7.7)
Profit/(loss) attributable to:
Owners of the parent		161.6	(348.2)		(18.7)
- Continuing operations		161.6	(348.2)		(31.8)
- Discontinued operations		0	0		13.1
Non-controlling interests		13.1	3.4		11
- Continuing operations		13.1	3.4		11
Profit/(loss) for the year		$ 174.7	$ (344.8)		$ (7.7)
Earnings/(loss) per share attributable to owners of the parent:
Basic earnings/(loss) per share from continuing operations - cents		$ 0.20	$ (0.42)		$ (0.04)
Basic earnings per share from discontinued operations - cents		0	0		0.02
Diluted earnings/(loss) per share from continuing operations - cents		0.19	(0.42)		(0.04)
Diluted earnings per share from discontinued operations - cents		$ 0	$ 0		$ 0.02

[1]	Refer note 42.

Consolidated statements of comp

Consolidated statements of comprehensive income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of comprehensive income [abstract]
Profit/(loss) for the year	$ 174.7	$ (344.8)	$ (7.7)
Other comprehensive income, net of tax	54.3	(330)	279.2
Items that will not be reclassified to profit or loss	(14.2)	(4.2)	0
Equity investments at FVOCI - net change in fair value	8.9	(8.2)	0
Taxation on above item	(23.1)	4	0
Items that may be reclassified subsequently to profit or loss	68.5	(325.8)	279.2
Available for sale financial assets - Net change in fair value	0	0	(0.7)
Foreign currency translation adjustments	68.5	(325.8)	279.9
Total comprehensive income for the year	229	(674.8)	271.5
Attributable to: - Owners of the parent	215.9	(678.2)	260.5
- Non-controlling interests	13.1	3.4	11
Total comprehensive income for the year	$ 229	$ (674.8)	$ 271.5

Consolidated statements of fina

Consolidated statements of financial position - USD ($) $ in Millions	Dec. 31, 2019		Dec. 31, 2018	[1]	Jan. 01, 2018
ASSETS
Non-current assets	$ 5,460.2		$ 5,183.2		$ 5,505.7
Property, plant and equipment	4,657.1		4,259.2		4,892.9
Goodwill	0		0		76.6
Inventories	141		133.3		132.8
Equity accounted investees	172		225.1		171.3
Investments	155.1		235.3		104.6
Environmental trust funds	69.5		60.8		55.5
Deferred taxation	265.5		269.5		72
Current assets	1,069.9		726.5		959.1
Inventories	417.8		368.2		393.5
Trade and other receivables	137.1		138.6		171.8
Cash and cash equivalents	515		219.7		393.8
Assets held for sale	31.2		0		40
Total assets	6,561.3		5,909.7		6,504.8
EQUITY AND LIABILITIES
Equity attributable to owners of the parent	2,777		2,586.1		3,275.8
Stated capital	3,622.5		3,622.5		3,622.5
Other reserves	(2,035.5)		(2,110.3)		(1,817.8)
Retained earnings	1,190		1,073.9		1,471.1
Non-controlling interests	131.7		120.8		127.2
Total equity	2,908.7		2,706.9		3,403
Non-current liabilities	2,284.8		2,670.9		2,363.1
Deferred taxation	433.6		454.9		453.9
Borrowings	1,160.9		1,814.3		1,587.9
Provisions	391.1		319.5		321.3
Lease liabilities (2018: finance lease liabilities)	287.7		80.1		0
Long-term incentive plan	11.5		2.1		0
Current liabilities	1,367.8		531.9		738.7
Trade and other payables	594.4		417.5		463.1
Royalties payable	13.9		12.5		16.3
Taxation payable	24.8	[1]	0.9		46.7
Current portion of borrowings	684.9		92.5		194.5
Current portion of lease liabilities (2018: finance lease liabilities)	45.2		8.5		0
Current portion of silicosis settlement costs	4.6		0		0
Current portion of long-term incentive plan	0		0		18.1
Total liabilities	3,652.6		3,202.8		3,101.8
Total equity and liabilities	$ 6,561.3		$ 5,909.7		$ 6,504.8

[1]	Refer note 42.

Consolidated statements of chan

Consolidated statements of changes in equity - USD ($) $ in Millions		Total		Share Capital [member]	Accumulated Other Comprehensive Income [Member]	[1]	Other Reserves [Member]	[2]	Retained Earnings [Member]	Equity Attributable to Owners of Parent [Member]	Non-controlling Interests [Member]
Beginning balance at Dec. 31, 2016		$ 3,173.3		$ 3,622.5	$ (2,280)		$ 155.6		$ 1,552.6	$ 3,050.7	$ 122.6
Profit/(loss) for the year		(7.7)		0	0		0		(18.7)	(18.7)	11
Other comprehensive income (loss)		279.2		0	279.2		0		0	279.2	0
Total comprehensive income		271.5		0	279.2		0		(18.7)	260.5	11
Dividends declared		(63.4)		0	0		0		(62.8)	(62.8)	(0.6)
Dividends advanced		(5.8)		0	0		0		0	0	(5.8)
Share-based payments from continuing operations		26.8		0	0		26.8		0	26.8	0
Share-based payments from discontinued operations		0.6		0	0		0.6		0	0.6	0
Adjusted balance at 1 January 2018 at Dec. 31, 2017		3,403		3,622.5	(2,000.8)		183		1,471.1	3,275.8	127.2
Adjustment on initial application of IFRS 15 (net of tax)		(3.5)		0	0		0		(3.5)	(3.5)	0
Profit/(loss) for the year		(344.8)		0	0		0		(348.2)	(348.2)	3.4
Other comprehensive income (loss)		(330)		0	(330)		0		0	(330)	0
Total comprehensive income		(674.8)		0	(330)		0		(348.2)	(678.2)	3.4
Dividends declared		(55.3)		0	0		0		(45.5)	(45.5)	(9.8)
Share-based payments from continuing operations		37.5		0	0		37.5		0	37.5	0
Adjusted balance at 1 January 2018 (Adjusted Balance [member]) at Dec. 31, 2018	[3]	3,399.5		3,622.5	(2,000.8)		183		1,467.6	3,272.3	127.2
Adjusted balance at 1 January 2018 at Dec. 31, 2018		2,706.9	[4]	3,622.5	(2,330.8)		220.5		1,073.9	2,586.1	120.8
Profit/(loss) for the year		174.7		0	0		0		161.6	161.6	13.1
Other comprehensive income (loss)		54.3		0	54.3		0		0	54.3	0
Total comprehensive income		229		0	54.3		0		161.6	215.9	13.1
Dividends declared		(47.7)		0	0		0		(45.5)	(45.5)	(2.2)
Share-based payments from continuing operations		20.5		0	0		20.5		0	20.5	0
Adjusted balance at 1 January 2018 at Dec. 31, 2019		$ 2,908.7		$ 3,622.5	$ (2,276.5)		$ 241		$ 1,190	$ 2,777	$ 131.7

[1]	Accumulated other comprehensive income mainly comprises foreign currency translation.
[2]	Other reserves include share-based payments and share of equity accounted investee’s other comprehensive income. The aggregate of accumulated other comprehensive income and other reserves in the consolidated statement of changes in equity is disclosed in the Consolidated statement of financial position as other reserves.
[3]	No adjustment required to equity on initial application of IFRS 9.
[4]	Refer note 42.

Consolidated statements of cash

Consolidated statements of cash flows $ in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)		Dec. 31, 2017USD ($)
Statement [LineItems]
Cash flows from operating activities		$ 845	$ 568.7	[1]	$ 732	[1]
Cash generated by operations		1,302.8	998	[1]	1,286.5	[1]
Interest received		6.6	6.8	[1]	5.1	[1]
Change in working capital	[1]	(24.6)	(31.9)		(89.9)
Cash generated by operating activities		1,284.8	972.9	[1]	1,201.7	[1]
Silicosis payment		(4.6)	0	[1]	0	[1]
Interest paid		(132)	(91)	[1]	(90.4)	[1]
Royalties paid	[1]	(72.3)	(65.5)		(66)
Taxation paid	[1]	(181.8)	(190.7)		(249.4)
Net cash from operations		894.1	625.7	[1]	795.9	[1]
Dividends paid/advanced		(49.1)	(57)	[1]	(70.7)	[1]
- Owners of the parent		(45.5)	(45.5)	[1]	(62.8)	[1]
- Non-controlling interest holders		(2.2)	(9.8)	[1]	(6.4)	[1]
- South Deep BEE dividend		(1.4)	(1.7)	[1]	(1.5)	[1]
Cash generated by continuing operations		845	568.7	[1]	725.2	[1]
Cash generated by discontinued operations		0	0	[1]	6.8	[1]
Cash flows from investing activities		(446.8)	(886.8)	[1]	(908.6)	[1]
Additions to property, plant and equipment		(612.5)	(814.2)	[1]	(833.6)	[1]
Proceeds on disposal of property, plant and equipment		3.7	78.9	[1]	23.2	[1]
Purchase of Asanko Gold		(20)	(165)	[1]	0	[1]
Purchase of investments		(6.5)	(19.3)	[1]	(80.1)	[1]
Redemption of Asanko Preference Shares		10	0	[1]	0	[1]
Proceeds on disposal of subsidiary		6.2	0	[1]	0	[1]
Proceeds on disposal of Maverix		66.8	0	[1]	0	[1]
Proceeds on disposal of investments		112.6	0.5	[1]	0	[1]
Contributions to environmental trust funds		(7.1)	(7.7)	[1]	(16.7)	[1]
Cash utilised in continuing operations		(446.8)	(886.8)	[1]	(901.8)	[1]
Cash utilised in discontinued operations		0	0	[1]	(6.8)	[1]
Cash flows from financing activities		(104.6)	151.6	[1]	85.1	[1]
Loans raised		1,538	690	[1]	787.6	[1]
Loans repaid		(1,604.3)	(535.9)	[1]	(702.5)	[1]
Payment of lease liabilities		(38.3)	(2.5)	[1]	0	[1]
Cash (utilised)/generated by continuing operations		(104.6)	151.6	[1]	85.1	[1]
Cash generated by discontinued operations		0	0	[1]	0	[1]
Net cash generated/(utilised)		293.6	(166.5)	[1]	(91.5)	[1]
Effect of exchange rate fluctuation on cash held		1.7	(7.6)	[1]	14.3	[1]
Cash and cash equivalents at beginning of the year	[1]	219.7	393.8		471
Cash and cash equivalents at end of the year		515	219.7	[1]	393.8	[1]
Arctic Platinum Project [Member]
Statement [LineItems]
Proceeds on disposal of assets		0	40	[1]	0	[1]
Darlot [Member]
Statement [LineItems]
Proceeds on disposal of assets		$ 0	$ 0	[1]	$ 5.4	[1]

[1]	Refer note 42.

Accounting Policies

Accounting Policies	12 Months Ended
Accounting Policies	Dec. 31, 2019
Text block [abstract]
Accounting Policies	ACCOUNTING POLICIES The principal accounting policies applied in the preparation of these financial statements (referred to as the “consolidated financial statements” or “financial statements”) are set out below. These policies have been consistently applied to all the years presented, except for the adoption of new and revised standards and interpretations. Gold Fields Limited (the “Company” or “Gold Fields”) is a company domiciled in South Africa. The registration number of the Company is 1968/004880/06. The address of the Company is 150 Helen Road, Sandton, Johannesburg. The consolidated financial statements of the Company as at 31 December 2019 and 2018 and for each of the years in the three-year period ended 31 December 2019 comprise the Company and its subsidiaries (together referred to as the “Group” and individually as “Group entities”) as well as the Group’s share of the assets, liabilities, income and expenses of its joint operations and the Group’s interest in associates and its joint ventures. The Group is primarily involved in gold mining. 1. BASIS OF PREPARATION The financial statements of the Group have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”), the SAICA Financial Reporting Guides as issued by the Accounting Practices Committee, Financial Reporting Pronouncements as issued by the Financial Reporting Standards Council, the JSE Listing Requirements and the South African Companies Act. This is the first set of the Group’s financial statements in which IFRS 16 Leases s As required by the United States Securities and Exchange Commission, the financial statements include the consolidated statements of financial position as at 31 December 2019 , 2018 7 2019 and 2018 and the related notes. The consolidated financial statements were authorised for issue by the Board of Directors on 30 Standards, interpretations and amendments to published standards effective for the year ended 31 December 2019 or early adopted by the Group During the financial year, the following new and revised accounting standards, amendments to standards and new interpretations were adopted by the Group: Standard(s) Amendment(s) Interpretation(s) Nature of the Change Salient features of the changes Impact on financial position or performance IFRS 16 Leases New standard • This IFRS sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract, i.e. the customer (‘lessee’) and the supplier (‘lessor’); • IFRS 16 replaces the previous leases Standard, IAS 17 Leases, and related Interpretations; • IFRS 16 has one model for lessees which will result in almost all leases being included on the statement of financial position. The lessee recognises a right-of-use • The Group adopted IFRS 16 on 1 January 2019. Refer to Note 41 of the consolidated financial statements Standard(s) Amendment(s) Interpretation(s) Nature of the Change Salient features of the changes Impact on financial position or performance IFRIC 23 Uncertainty over Income Tax Treatments New interpretation • This interpretation clarifies the accounting for income tax treatments that have yet to be accepted by tax authorities; • IFRIC 23 specifically clarifies how to incorporate this uncertainty into the measurement of tax as reported in the financial statements; • IFRIC 23 does not introduce any new disclosures but reinforces the need to comply with existing disclosure requirements about judgements made, assumptions and other estimates used and the potential impact of uncertainties that are not reflected; and • The Group adopted IFRIC 23 on 1 January 2019. No impact Various IFRS (2015/2017Cycle) • The annual improvements project is a collection of amendments to various IFRS standards and is the result of conclusions reached by the International Accounting Standards Board (“IASB”) on proposals made at its annual improvement project; and • The Group adopted the interpretation on 1 January 2019. No impact Standards, interpretations and amendments to published standards that are not yet effective Certain new standards, amendments and interpretations to existing standards have been published that apply to the Group’s accounting periods beginning on 1 January 2020 or later periods but have not been early adopted by the Group. These standards, amendments and interpretations that are relevant to the Group are: Standard(s) Amendment(s) Interpretation(s) Nature of the Change Salient features of the changes Effective IFRS 3 Amendments • These amendments make it easier for companies to decide whether activities and assets they acquire are a business or merely a group of assets. The amendments: • Confirm that a business must include inputs and a process, and clarified that: (i) the process must be substantive and (ii) the inputs and process must together significantly contribute to creating outputs. • Narrow the definitions of a business by focusing the definition of outputs on goods and services provided to customers and other income from ordinary activities, rather than on providing dividends or other economic benefits directly to investors or lowering costs; and • Add a test that makes it easier to conclude that a company has acquired a group of assets, rather than a business, if the value of the assets acquired is substantially all concentrated in a single asset or group of similar assets. • The amendments will not have a material impact on the Group. 1 January 2020 Standard(s) Amendment(s) Interpretation(s) Nature of the Change Salient features of the changes Effective date* IAS1 Statements and IAS8 Amendments • The IASB refined its definition of material to make it easier to understand. It is now aligned across IFRS Standards and the Conceptual Framework; • The revised definition of material is: • Information is material if omitting, misstating or obscuring it could reasonably be expected to influence decisions that the primary users of general purpose financial statements make on the basis of those financial statements, which provide financial information about a specific reporting entity. • The Board has also removed the definition of material omissions or misstatements from IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors; and • The amendments will not have a material impact on the Group. 1 January 2020 IFRS17 In surance Contracts New Standard • IFRS 17 supersedes IFRS 4 Insurance Contracts • In addition, it includes a simplified approach and modifications to the general measurement model that can be applied in certain circumstances and to specific contracts, such as: • Reinsurance contracts held; • Direct participating contracts; and • Investment contracts with discretionary participation features. • Under the new standard, investment components are excluded from insurance revenue and service expenses. Entities can also choose to present the effect of changes in discount rates and other financial risks in profit or loss or OCI; • The new standard includes various new disclosures and requires additional granularity in disclosures to assist users to assess the effects of insurance contracts on the entity’s financial statements; and • The Group is in the process of evaluating whether IFRS 17 will have an impact on the Group and will provide more detailed disclosure on the impact in future financial statements . 1 January 2021 * Effective date refers to annual period beginning on or after said date. Significant accounting judgements and estimates Use of estimates: The preparation of the financial statements in accordance with IFRS requires the Group’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. The determination of estimates requires the exercise of judgement based on various assumptions and other factors such as historical experience, current and expected economic conditions, and in some cases actuarial techniques. Actual results could differ from those estimates. The more significant areas requiring the use of management estimates and assumptions relate to the following: • Mineral reserves and resources estimates (this forms the basis of future cash flow estimates used for impairment assessments and units-of-production • Carrying value of property, plant and equipment; • Production start date; • Estimates of recoverable gold and other materials in heap leach and stockpiles, gold in process and product inventories including write-downs of inventory to net realisable value; • Provision for environmental rehabilitation costs; • Provision for silicosis settlement costs; • Income taxes; • Share-based payments; • Long-term incentive plan; • The fair value and accounting treatment of financial instruments; and • Contingencies. Estimates and judgements are continually evaluated and are based on historical experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. The estimates and assumptions that have a significant risk of causing a material adjustment to the carrying amounts of assets and liabilities within the financial year are discussed below. Mineral reserves and resources estimates Mineral reserves are estimates of the amount of product, inclusive of diluting materials and allowances for losses, which can be economically and legally extracted from the Group’s properties, as determined by life-of-mine pre-feasibility Mineral resources are estimates, based on specific geological evidence and knowledge, including sampling, of the amount of product in situ, for which there is a reasonable prospect for eventual legal and economic extraction. In order to calculate the reserves and resources, estimates and assumptions are required about a range of geological, technical and economic factors, including but not limited to quantities, grades, production techniques, recovery rates, production costs, capital expenditure, transport costs, commodity demand, commodity prices and exchange rates. Estimating the quantity and grade of the mineral reserves and resources is based on exploration and sampling information gathered through appropriate techniques (primarily diamond drilling, reverse circulation drilling, air-core The Group is required to determine and report on the mineral reserves and resources in accordance with the South African Mineral Resource Committee (“SAMREC”) code on an annual basis. The Mineral Reserves and Resources were approved by the Competent Person. Estimates of mineral reserves and resources may change from year to year due to the change in economic, regulatory, infrastructural or social assumptions used to estimate ore reserves and resources, and due to additional geological data becoming available. Changes in reported proved and probable reserves may affect the Group’s financial results and position in a number of ways, including the following: • The recoverable amount used in the impairment calculations may be affected due to changes in estimated cash flows or timing thereof (refer note 6); • Amortisation and depreciation charges to profit or loss may change as these are calculated on the units-of-production • Provision for environmental rehabilitation costs may change where changes in ore reserves affect expectations about the timing or cost of these activities (refer note 25.1); and • The carrying value of deferred tax assets may change due to changes in estimates of the likely recovery of the tax benefits (refer note 23 Changes in reported measured and indicated resources may affect the Group’s financial results and position in a number of ways, including the following: • The recoverable amount used in the impairment calculations may be affected due to changes in estimated market value of resources exclusive of reserves (refer note 6); and • Amortisation and depreciation charges for the mineral rights asset at the Australian operations may change as a result of the change in the portion of mineral rights asset being transferred from the non-depreciable Carrying value of property, plant and equipment All mining assets are amortised using the units-of-production Mobile and other equipment are depreciated over the shorter of the estimated useful life of the asset or the estimate of mine life based on proved and probable mineral reserves. The calculation of the units-of-production d • Changes in prove d • Differences between actual commodity prices and commodity price assumptions; • Unforeseen operational issues at mine sites; • Changes in capital, operating, mining, processing and reclamation costs, discount rates and foreign currency exchange rates; and • Changes in mineral reserves could similarly impact the useful lives of assets depreciated on a straight-line basis, where those lives are limited to the life of the mine. The Group reviews and tests the carrying value of long-lived assets annually or when events or changes in circumstances suggest that the carrying amount may not be recoverable by comparing the recoverable amounts to these carrying values. Assets are grouped at the lowest level for which identifiable cash flows are largely independent of cash flows of other assets and liabilities. If there are indications that impairment or reversal of impairment may have occurred, estimates are prepared of recoverable amounts of each group of assets. The recoverable amounts of cash-generating units (“CGU”) and individual assets have been determined based on the higher of value-in-use and fair value less cost of disposal (“FVLCOD”) calculations. Expected future cash flows used to determine the value in use or FVLCOD of property, plant and equipment and goodwill are inherently uncertain and could materially change over time. They are significantly affected by a number of factors including reserves and production estimates, together with economic factors such as the gold and copper prices, discount rates, foreign currency exchange rates, resource valuations (determined based on comparable market transactions), estimates of costs to produce reserves and future capital expenditure. The Group generally used FVLCOD to determine the recoverable amount of each CGU. Significant assumptions used in the Group’s impairment assessments (FVLCOD calculations) include: 2019 2018 US$ Gold price per ounce – year 1 US$ 1,500 US$ 1,200 US$ Gold price per ounce – year 2 and 3 US$ 1,400 US$ 1,300 US$ Gold price per ounce – year 4 onwards US$ 1,350 US$ 1,300 Rand Gold price per kilogram – year 1 R 700,000 R 525,000 Rand Gold price per kilogram – year 2 and 3 R 650,000 R 550,000 Rand Gold price per kilogram – year 4 onwards R 630,000 R 550,000 A$ Gold price per ounce – year 1 A$ 2,150 A$ 1,600 A$ Gold price per ounce – year 2 and 3 A$ 1,970 A$ 1,700 A$ Gold price per ounce – year 4 onwards A$ 1,850 A$ 1,700 US$ Copper price per tonne – year 1 US$ 5,730 US$ 5,951 US$ Copper price per tonne – year 2 and 3 US$ 6,612 US$ 6,612 US$ Copper price per tonne – year 4 onwards US$ 6,612 US$ 6,612 Resource value per ounce (used to calculate the value beyond proved and probable reserves) • South Africa (with infrastructure) US$ 16 US$ 17 • Ghana (with infrastructure) US$ 70 US$ 44 • Peru (with infrastructure) US$ 34 US$ 70 • Australia (with infrastructure) US$ 77 US$ 28 Discount rates • South Africa – nominal 14.1 % 13.5 % • Ghana – real 8.5 % 9.5 % • Peru – real 5.0 % 4.9 % • Australia – real 3.5 % 3.4 % Inflation rate – South Africa1 5.3 % 5.5 % Life-of-mine • South Deep 75 years 75 years • Tarkwa 14 years 14 years • Damang 6 years 7 years • Cerro Corona 13 years 12 years • St Ives 9 years 7 years • Agnew 4 years 4 years • Granny Smith 13 years 12 years • Gruyere 11 years 12 years Long-term exchange rates US$/ZAR – year 1 14.50 13.61 US$/ZAR – year 2 onwards 14.50 13.16 A$/US$ – year 1 0.70 0.75 A$/US$ – year 2 and 3 0.71 0.76 A$/US$ – year 4 onwards 0.73 0.76 1 Due to the availability of unredeemed capital for tax purposes over several years into the life of the South Deep mine, nominal cash flows are used for South Africa. In order to determine nominal cash flows in South Africa, costs are inflated by the current South African inflation rate. Cash flows for all other operations are in real terms and as a result are not inflated. The FVLCOD calculations are sensitive to the gold price assumptions and an increase or decrease in the gold price could materially change the FVLCOD. Should there be a significant decrease in the gold or copper price, the Group would take actions to assess the implications on the life-of-mine Refer notes 2, 6 and 13 for further details. The carrying amount of property, plant and equipment at 31 December 2019 was US$4,657.1 million (2018: US$4,259.2 million). An impairment of US$nil (2018: US$481.5 million and 2017: US$277.8 million) was recognised in respect of the South Deep CGU for the year ended 31 December 2019. US$nil (2018: US$71.7 million and 2017: US$277.8 million) of the total impairment was firstly allocated against goodwill and the remainder of US$ nil nil assets. The carrying value of the South Deep CGU amounts to US$1.5 billion (R21.1 billion) (2018: US$1.4 billion (R21.2 billion)) at 31 December 2019. Production start date The Group assesses the stage of each mine construction project to determine when a mine moves into the production stage. The criteria used to assess the start date are determined based on the unique nature of each mine construction project. The Group considers various relevant criteria to assess when the mine is substantially complete, ready for its intended use and moves into the production stage. Some of the criteria would include, but are not limited to the following: • The level of capital expenditure compared to the construction cost estimates; • Ability to produce metal in saleable form (within specifications); and • Ability to sustain commercial levels of production of metal. When a mine construction project moves into the production stage, the capitalisation of certain mine construction costs ceases and costs are either regarded as inventory or expensed, except for capitalisable costs related to mining asset additions or improvements, underground mine development, deferred stripping activities or ore reserve development. Refer note 16.2 for details of the Gruyere Gold project. Stockpiles, gold in process and product inventories Costs that are incurred in or benefit the productive process are accumulated as stockpiles, gold in process, ore on leach pads and product inventories. Net realisable value tests are performed on a monthly basis for short-term stockpiles, gold in process and product inventories and at least annually for long-term stockpiles and represent the estimated future sales price of the product based on prevailing spot metals prices at the reporting date, less estimated costs to complete production and bring the product to sale. If any inventories are expected to be realised in the long term, estimated future sales prices are used for valuation purposes. Stockpiles are measured by estimating the number of tonnes added and removed from the stockpile, the number of contained gold ounces based on assay data, and the estimated recovery percentage based on the expected processing method. Stockpile tonnages are verified by periodic surveys. Although the quantities of recoverable metal are reconciled by comparing the grades of ore to the quantities of metals actually recovered (metallurgical balancing), the nature of the process inherently limits the ability to precisely monitor the recoverability levels. As a result, the metallurgical balancing process is constantly monitored and engineering estimates are refined based on actual results over time. Variations between actual and estimated quantities resulting from changes in assumptions and estimates that do not result in write downs to net realisable value are accounted for on a prospective basis. Refer note 19 for further details. The carrying amount of total gold-in-process (non-current Carrying value of equity accounted investees The Group reviews and tests the carrying value of equity accounted investees annually or when events or changes in circumstances suggest that the carrying amount may not be recoverable by comparing the recoverable amounts to these carrying values. If there are indications that impairment may have occurred, estimates are prepared of the recoverable amount of the equity accounted investee. The recoverable amounts are determined based on the higher of value-in-use or FVLCOD. The FVLCOD is determined using the following methods: • A combination of the income and market approach. The income approach is based on the expected future cash flows of the operations and the market approach is used to determine the value beyond proved and probable reserves for the operation, using comparable market transactions; and • Using quoted market prices of other investors in the equity accounted investee with appropriate adjustments in order to derive the fair value. Expected future cash flows used to determine the FVLCOD of equity accounted investees are inherently uncertain and could materially change over time. They are significantly impacted by a number of factors including reserves and production estimates, together with economic factors such as gold and copper prices, discount rates, foreign currency exchange rates, resource valuations (determined based on comparable market transactions), estimates of costs to produce reserves and future capital expenditure. The key assumptions used in the income and market approach are consistent with those used in determining the FVLCOD for impairment of property, plant and equipment (refer page ●●) and in addition the life-of-mine of Asanko is 10 years. The quoted market prices of the other investee is the quoted market price of Asanko Inc. The FVLCOD calculations are sensitive to the gold price assumption and the quoted market prices, a decrease or increase in these two assumptions could materially change the FVLCOD. Refer note 16.1 for further details. The carrying amount of equity accounted investees at 31 December 2019 was US$172.0 million (2018: US$225.1 million). Provision for environmental rehabilitation costs The Group’s mining and exploration activities are subject to various laws and regulations governing the protection of the environment. The Group recognises management’s best estimate for the provision of environmental rehabilitation costs in the period in which they are incurred. Actual costs incurred in future periods could differ materially from the estimates. Additionally, future changes to environmental laws and regulations, life-of-mine Refer note 25.1 for details of key assumptions used to estimate the provision. The carrying amounts of the provision for environmental rehabilitation costs at 31 December 2019 was US$370.3 million (2018: US$289.6 million). Provision for silicosis settlement costs The Group has an obligation in respect of a possible settlement of the silicosis class action claims and related costs. The Group recognises management’s best estimate for the provision of silicosis settlement costs. The ultimate outcome of the class action remains uncertain, with the number of eligible workers successfully submitting claims and receiving compensation being uncertain. The provision is consequently subject to adjustment in the future. Refer notes 25.2 and 35 for further details. The carrying amounts of the provision for silicosis settlement costs at 31 December 2019 was US$21.2 million (2018: US$25.1 million) of which US$4.6 million (2018: US$nil) was classified as current and US$16.6 million (2018: US$25.1 million) as non-current. Income taxes The Group is subject to income taxes in numerous jurisdictions. Significant judgement is required in determining the liability for income taxes due to the complexity of legislation. There are many transactions and calculations for which the ultimate tax determination is uncertain during the ordinary course of business. The Group recognises liabilities for anticipated tax audit issues based on estimates of whether additional taxes will be due. Where the final tax outcome of these matters is different from the amounts that were initially recorded, such differences will impact income tax and deferred tax in the period in which such determination is made. The Group recognises the future tax benefits related to deferred income tax assets to the extent that it is probable that the deductible temporary differences will reverse in the foreseeable future. Assessing the recoverability of deferred income tax assets requires the Group to make significant estimates related to expectations of future taxable income. Estimates of future taxable income are based on forecast cash flows from operations and the application of existing tax laws in each jurisdiction. To the extent that future cash flows and taxable income differ significantly from estimates, the ability of the Group to realise the net deferred tax assets recorded at the reporting date could be impacted. Additionally, future changes in tax laws in the jurisdictions in which the Group operates could limit the ability of the Group to obtain tax deductions in future periods. Refer notes 23 and 31 for further details. Carrying values at 31 December 2019: • Deferred taxation liability: US$433.6 million (2018: US$454.9 million) • Deferred taxation asset: US$ 265.5 • Taxation payable: US$ 24.8 million (2018 Restated 1 : US$ 0.9 million) 1 Refer note 42 for further details. Refer note 9 for details of unrecognised deferred tax assets. Share-based payments The Group issues equity-settled share-based payments to executive directors, certain officers and employees. The fair value of these instruments is measured at grant date, using the Black-Scholes and Monte Carlo simulation valuation models, which require assumptions regarding the estimated term of the option, share price volatility and expected dividend yield. While Gold Fields’ management believes that these assumptions are appropriate, the use of different assumptions could have a material impact on the fair value of the option granted and the related recognition of the share-based payments expense in the consolidated income statement. Gold Fields’ options have characteristics significantly different from those of traded options and therefore fair values may also differ. Refer note 5 for further details. The income statement charge from continuing operations for the year ended 31 December 2019 was US$20.5 million (2018: US$37.5 million and 2017: US$26.8 million). Long-term incentive plan The Group issues awards relating to its long-term incentive plan to certain employees. These awards are measured on the date the award is made and re-measured at each reporting period. A portion of the award is measured using the Monte Carlo simulation valuation model, which requires assumptions regarding the share price volatility and expected dividend yield. The assumptions, supporting the estimated amount expected to be paid, are reviewed at each reporting date. While Gold Fields’ management believes that these assumptions are appropriate, the use of different assumptions could have a material impact on the measurement of the awards and the related recognition of the compensation expense in profit or loss. Refer note 26 for further details. The charge for the year ended 31 December 2019 was US$9.1 million (2018: US$1.1 million and 2017: US$5.0 million) and the balance at 31 December 2019 of the long-term cash incentive provision was US$11.5 million (2018: US$2.1 million). Financial instruments Derivative financial instruments The estimated fair value of financial instruments is determined at discrete points in time, based on the relevant market information. The fair value is calculated with reference to market rates using industry valuation techniques and appropriate models. The carrying values of derivative financial instruments included in trade and other receivables at 31 December 2019 was US$1.1 million (2018: US$8.3 million) and included in trade and other payables US$127.6 million (2018: US$22.6 million). Refer notes 20, 27 and 38 for further details. Asanko redeemable preference shares Significant judgement is required in estimating life-of-mine In order to estimate the life-of-mine The life-of-mine The fair value of the Asanko redeemable preference shares at 31 December 2019 was US$95.5 million (2018: US$132.9 million). Contingencies By their nature, contingencies will only be resolved when one or more future events occur or fail to occur. The assessment of such contingencies inherently involves the exercise of significant judgement and estimates of the outcome of future events. Such contingencies include, but are not limited to environmental obligations, litigation, regulatory proceedings, tax matters and losses resulting from other events and developments. When a loss is considered probable and reasonably estimable, a liability is recorded based on the best estimate of the ultimate loss. The likelihood of a loss with respect to a contingency can be difficult to predict and determining a meaningful estimate of the loss or a range of losses may not always be practicable based on the information available at the time and the potential effect of future events and decisions by third parties that will determine the ultimate resolution of the contingency. It is not uncommon for such matters to be resolved over many years, during which time relevant developments and new information is continuously evaluated to determine both the likelihood of any potential loss and whether it is possible to reasonably estimate a range of possible losses. When a loss is probable but a reasonable estimate cannot be made, disclosure is provided. Refer note 35 for details on contingent liabilities. 2. CONSOLIDATION 2.1. Business combinations The acquisition method of accounting is used to account for business combinations by the Group. The consideration transferred for the acquisition of a business is the fair value of the assets transferred, the liabilities incurred and the equity interests issued by the Group. The consideration transferred includes the fair value of any asset or liability resulting from a contingent consideration arrangement. Acquisition-related costs are expensed as incurred, other than those associated with the issue of debt or equity securities. Identifiable assets acquired and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date. On an acquisition-by-acquisition non-controlling non-controlling non-controlling non-controlling The excess of the consideration transferred, the amount of any non-controlling If a transaction does not meet the definition of a business under IFRS, the transaction is recorded as an asset acquisition. Accordingly, the identifiable assets acquired and liabilities assumed are measured at the fair value of the consideration paid, based on their relative fair values at the acquisition date. Acquisition-related costs are included in the consideration paid and capitalised. Any contingent consideration payable that is dependent on the purchaser’s future activity is not included in the consideration paid until the activity requiring the payment is performed. Any resulting future amounts payable are recognised in profit or loss when incurred. No goodwill and no deferred tax asset or liability arising from the assets acquired and liabilities assumed are recognised upon the acquisition of assets. 2.2. Subsidiaries Subsidiaries are all entities controlled by the Group. The Group controls an entity when it is exposed to, or has rights to, variable returns from its involvement with the entity and has the ability to affect those returns through its power over the relevant activities of the entity. Subsidiaries are fully consolidated from the date on which control is transferred to the Group until the date on which control ceases. Inter-company transactions, balances and unrealised gains and losses on transactions between Group companies are eliminated. Accounting policies of subsidiaries have been changed where necessary to ensure consistency with the policies adopted by the Group. 2.3. Transactions with non-controlling The Group treats transactions with non-controlling non-contro

Revenue

Revenue	12 Months Ended
Revenue	Dec. 31, 2019
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Revenue	UNITED STATES DOLLAR 2019 2018 2017 1. REVENUE Revenue from contracts with customers 2,967.1 2,577.8 2,761.8 - Gold¹ 2,802.0 2,408.6 2,584.0 - Copper² 165.1 169.2 177.8 Disclosure of disaggregated revenue from contracts with customers The Group generates revenue primarily from the sale of gold bullion and copper concentrate to refineries and banks. All revenue from contracts with customers is recognised at a point in time. The Group also produces silver which is an insignificant by-product. The disaggregation of revenue from contracts with customers by primary geographical market and product is described in the segment note (note 43). ¹ All regions. ² Only Peru region (Cerro Corona).

Cost of Sales

Cost of Sales	12 Months Ended
Cost of Sales	Dec. 31, 2019
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Cost of Sales	2. COST OF SALES Salaries and wages (334.8 ) (392.8 ) (414.7 ) Consumable stores (270.4 ) (280.0 ) (346.7 ) Utilities (131.5 ) (148.3 ) (150.1 ) Mine contractors (511.0 ) (365.3 ) (307.4 ) Other (218.8 ) (204.4 ) (207.6 ) Cost of sales before gold inventory change and amortisation and depreciation (1,466.5 ) (1,390.8 ) (1,426.5 ) Gold inventory change 43.0 16.2 69.5 Cost of sales before amortisation and depreciation (1,423.5 ) (1,374.6 ) (1,357.0 ) Amortisation and depreciation (610.0 ) (668.4 ) (748.1 ) Total cost of sales (2,033.5 ) (2,043.0 ) (2,105.1 )

Investment Income

Investment Income	12 Months Ended
Investment Income	Dec. 31, 2019
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Investment Income	3. INVESTMENT INCOME Dividends received — 0.4 — Interest received - environmental trust funds 0.7 0.6 0.5 Interest received - cash balances 6.6 6.8 5.1 Total investment income 7.3 7.8 5.6

Finance Expense

Finance Expense	12 Months Ended
Finance Expense	Dec. 31, 2019
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Finance Expense	4. FINANCE EXPENSE Interest expense - environmental rehabilitation (11.7 ) (11.7 ) (12.1 ) Unwinding of discount rate on silicosis settlement costs (1.3 ) (2.0 ) (0.9 ) Interest expense - lease liabilities (2018: finance lease liabilities) (18.6 ) (0.2 ) — Interest expense - borrowings (114.0 ) (91.6 ) (91.2 ) Borrowing costs capitalised 3 43.4 17.5 22.9 Total finance expense (102.2 ) (88.0 ) (81.3 ) ¹ All regions. ² Only Peru region (Cerro Corona). 3 Borrowing costs capitalised of US$43.4 million comprise borrowing costs relating to general borrowings of US$31.0 million and specific borrowings of US$12.4 million. The specific borrowings of US$12.4 million relate to the Gruyere project and are included in additions to property, plant and equipment of US$612.5 million (refer note 13).

Share-Based Payments

Share-Based Payments	12 Months Ended
Share-Based Payments	Dec. 31, 2019
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Share-Based Payments	5. SHARE-BASED PAYMENTS The Group granted equity-settled instruments comprising share options and restricted shares to executive directors, certain officers and employees. During the year ended 31 December 2019, the following share plans were in place: The Gold Fields Limited 2005 Share Plan, the Gold Fields Limited 2012 Share Plan and the Gold Fields Limited 2012 Share Plan as amended in 2016. During 2016, the Gold Fields Limited 2012 Share Plan as amended in 2016 was introduced to replace the long-term incentive scheme (“LTIP”). Allocations under this plan were made during 2016, 2017 and 2018. The following information is available for each plan: UNITED STATES DOLLAR 2019 2018 2017 Continuing Continuing Continuing Discontinued (a) Gold Fields Limited 2005 Share Plan — — — — (b)(i) Gold Fields Limited 2012 Share Plan - Performance Shares — — — — - Bonus Shares — — — — (b)(ii) Gold Fields Limited 2012 Share Plan amended - Performance Shares 18.8 34.7 24.5 0.6 - Retention Shares 1.4 2.5 2.1 — - Restricted/Matching Shares 0.3 0.3 0.2 — Total included in profit or loss for the year 20.5 37.5 26.8 0.6 (a) Gold Fields Limited 2005 Share Plan At the Annual General Meeting on 17 November 2005, shareholders approved the adoption of the Gold Fields Limited 2005 Share Plan to replace the GF Management Incentive Scheme approved in 1999. The plan provided for two methods of participation, namely the Performance Allocated Share Appreciation Rights Method (“SARS”) and the Performance Vesting Restricted Share Method (“PVRS”). This plan sought to attract, retain, motivate and reward participating employees on a basis which sought to align the interests of such employees with those of the Company’s shareholders. No further allocations of options under this plan are being made following the introduction of the Gold Fields Limited 2012 Share Plan (see below) and the plan was closed. The following table summarises the movement of share options under the Gold Fields Limited 2005 Share Plan during the years ended 31 December 2018 and 2017: 2018 2017 Share Average Share Average Outstanding at beginning of the year 11,521 9.42 530,611 7.39 Movement during the year: Forfeited (11,521 ) 9.42 (519,090 ) 7.75 Outstanding at end of the year (vested) — — 11,521 9.42 (b)(i) Gold Fields Limited 2012 Share Plan—awards prior to 1 March 2016 At the Annual General Meeting on 14 May 2012 shareholders approved the adoption of the Gold Fields Limited 2012 Share Plan to replace the Gold Fields Limited 2005 Share Plan. The plan provided for two methods of participation, namely the Performance Share Method (“PS”) and the Bonus Share Method (“BS”). This plan sought to attract, retain, motivate and reward participating employees on a basis which sought to align the interests of such employees with those of the Company’s shareholders. No further allocations of options under this plan are being made following the introduction of the Gold Fields Limited 2012 Share Plan amended—awards after 1 March 2016 (see below) and the plan was closed. The following table summarises the movement of share options under the Gold Fields Limited 2012 Share Plan during the years ended 31 December 2017: 2017 Performance Outstanding at beginning of the year 393,178 Movement during the year: Forfeited (393,178 ) Outstanding at end of the year — (b)(ii) Gold Fields Limited 2012 Share Plan amended—awards after 1 March 2016 At the Annual General Meeting on 18 May 2016, shareholders approved the adoption of the revised Gold Fields Limited 2012 Share Plan to replace the LTIP. The plan provides for four types of participation, namely Performance Shares (“PS”), Retention Shares (“RS”), Restricted Shares (“RSS”) and Matching Shares (“MS”). This plan is in place to attract, retain, motivate and reward participating employees on a basis which seeks to align the interests of such employees with those of the Company’s shareholders. Currently, the last vesting date is 14 May 2023. The salient features of the plan are: • PS are offered to participants annually from • Based on the rules of the plan, the actual number of PS which will be settled to a participant three years after the original award date is determined by the following performance conditions: Performance condition Weighting Threshold Target Stretch and cap Absolute Total Shareholder Return (“TSR”) 33 % N/A - No vesting below target Compounded cost of equity in real terms over three-year performance period Compounded cost of equity in real terms over three-year performance period +6% per annum Relative TSR 33 % Median of the peer group Linear vesting to apply between median and upper quartile performance and capped at upper quartile performance Free cash flow margin (“FCFM”) 34 % Average FCFM over performance period of 5% at a gold price of $1,200/oz for the 2019 allocation (2017 and 2018 allocations: $1,300/oz) - margin to be adjusted relative to the actual gold price for the three-year period Average FCFM over performance period of 15% at a gold price of $1,200/oz for the 2019 allocation (2017 and 2018 allocations: $1,300/oz) - margin to be adjusted relative to the actual gold price for the three-year period Average FCFM over performance period of 20% at a gold price of $1,200/oz for the 2019 allocation (2017 and 2018 allocations: $1,300/oz) - margin to be adjusted relative to the actual gold price for the three-year period The vesting profile will be as follows: Performance condition Threshold Target Stretch and cap Absolute TSR 1,4 0 % 100 % 200 % Relative TSR 1,3,4 0 % 100 % 200 % FCFM 2 0 % 100 % 200 % 1 Absolute TSR and relative TSR: Linear vesting will occur between target and stretch (no vesting occurs for performance below target). 2 FCFM: Linear vesting will occur between threshold, target and stretch. 3 The peer group consists of 10 companies: Anglogold Ashanti, Goldcorp, Barrick, Eldorado Gold, Randgold, Yamana, Agnico Eagle, Kinross, Newmont and Newcrest. During 2019, Randgold merged with Barrick and Goldcorp merged with Newmont. The peer group will remain at 10 companies by maintaining phantom share tracking for Randgold and Goldcorp based on their respective merger ratios at the date of the merger. 4 TSR will be calculated as the compounded annual growth rate (“CAGR”) of the TSR index between the average of the 60 trading days up to the first day of the performance period and the average of the 60 trading days up to the last day of the performance period. TSR will be defined as the return on investing in ordinary shares in the Company at the start of the performance period, holding the shares and reinvesting the dividends received on the portfolio in Gold Fields shares over the performance period. The USD TSR index, provided by external service providers will be based on the USD share price. • RSS: In 2016, Gold Fields implemented a Minimum Shareholding Requirement (“MSR”) where executives are required to build and to hold a percentage of their salary in Gold Fields shares over a period of five years. Executives will be given the opportunity (as at the approval date of the MSR), prior to the annual bonus being communicated or the upcoming vesting date of the LTIP award or PS, to elect to receive all or a portion of their annual bonus or cash LTIP in restricted shares or to convert all or a portion of their unvested PS into restricted shares towards fulfilment of the MSR. These shares are subject to the holding period as set out below; This holding period will mean that the restricted shares may not be sold or disposed of and that the beneficial interest must be retained therein until the earlier of: • Notice given by the executive, provided that such notice may only be given after five years from the start of the holding period; • Termination of employment of that employee, i.e. retirement, retrenchment, ill health, death, resignation or dismissal; • Abolishment of the MSR; or • In special circumstances such as proven financial hardship or compliance with the MSR, upon application by the employee and approval by the Remuneration Committee. • MS: To facilitate the introduction of the MSR policy and to compensate executives for participating in RSS and holding their shares for an additional five years, thus exposing themselves to further market volatility, the Company intends to make a matching award. This is intended to entail a conditional award of shares of one share for every three shares committed towards the MSR (matching shares), rounded to the nearest full share. The matching shares will vest on a date that corresponds with the end of the holding period of the shares committed towards the MSR provided the executive is still in the employment of the Company and has met the MSR requirements of the MSR policy, including having sustainably accumulated shares to reach the MSR over the five year holding period. At 31 December 2019, the maximum number of matching shares that could vest, based on shares already committed to MSR, at the end of five years was 441,604 (2018: 40 7 223 The following table summarises the movement of share options under the Gold Fields Limited 2012 Share Plan as amended in 2016 during the years ended 31 December 2019, 2018 and 2017: 2019 2018 2017 Performance Performance Performance Outstanding at beginning of the year 18,361,977 18,279,130 8,138,472 Movement during the year: Granted 4,558,177 811,829 11,744,152 Exercised and released (6,611,023 ) — (34,827 ) Forfeited (1,475,741 ) (728,982 ) (1,568,667 ) Outstanding at end of the year 14,833,390 18,361,977 18,279,130 At 31 December 2019, none of the outstanding options of 14,833,390 had vested. 2019 2018 2017 The fair value of equity instruments granted during the year ended 31 December 2019, 2018 and 2017 were valued using the Monte Carlo simulation model: Monte-Carlo simulation Performance shares The inputs to the model for options granted during the year were as follows: - weighted average historical volatility (based on a statistical analysis of the share price on a weighted moving average basis for the expected term of the option) 44.7 % 58.6 % 64.3 % - expected term (years) 3 years 3 years 3 years - dividend yield 1 n/a n/a n/a - weighted average three-year risk free interest rate (based on US interest rates) 1.4 % 2.0 % 1.6 % - weighted average fair value (United States dollars) 5.7 5.0 4.2 1 There is no dividend yield applied to the Monte Carlo simulation model as the performance conditions follow a total shareholder return method. The weighted average share price for the year ended 31 December 2019 on the Johannesburg Stock Exchange (US$) was US$4.82 (2018: US$3.46 and 2017: US$3.76). The compensation costs related to awards not yet recognised under the above plans at 31 December 2019, 2018 and 2017 amount to US$17.5 million, US$20.8 million and US$53.0 million, respectively, and are to be recognised over four years. The directors were authorised to issue and allot all or any of such shares required for the plans, but in aggregate all plans may not exceed 41,076,635 of the total issued ordinary stated capital of the Company of which 7,093,795 has been utilised. An individual participant may also not be awarded an aggregate of shares from all or any such plans exceeding 4,107,664 of the Company’s total issued ordinary stated capital. The unexercised options and shares under all plans represented 1.8% of the total issued stated capital at 31 December 2019.

Impairment, Net of Reversal of

Impairment, Net of Reversal of Impairment of Investments and Assets	12 Months Ended
	Dec. 31, 2019
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Impairment, Net of Reversal of Impairment of Investments and Assets	UNITED STATES DOLLAR 2019 2018 2017 6. IMPAIRMENT, NET OF REVERSAL OF IMPAIRMENT OF INVESTMENTS AND ASSETS Investments (9.6 ) (36.9 ) (3.7 ) Listed investments — — (0.5 ) Unlisted investments — — (3.2 ) Equity accounted investees - Far Southeast Gold Resources Incorporated (“FSE”) 1 (9.6 ) (36.9 ) — Property, plant and equipment (0.2 ) (411.7 ) 81.3 Reversal of impairment of Arctic Platinum (“APP”) 2 — — 39.0 (Impairment)/reversal of impairment of property, plant and equipment - other 3 (0.2 ) (1.9 ) 42.3 South Deep cash-generating unit 4 — (409.8 ) — Goodwill — (71.7 ) (277.8 ) South Deep goodwill 4 — (71.7 ) (277.8 ) Impairment, net of reversal of impairment of investments and assets (9.8) (520.3) (200.2) ¹ Following the identification of impairment indicators during 2018 and 2019, FSE was valued at its recoverable amount which resulted in a net impairment of US$36.9 million and US$9.6 million, respectively. The recoverable amount was based on the fair value less cost of disposal (“FVLCOD”) of the investment (level 2 in the fair value hierarchy). The FVLCOD was indirectly derived from the market value of Lepanto Consolidated Mining Company, being the 60% shareholder of FSE. The net impairment is included in the “Corporate and other” segment. 2 Following the Group’s decision during 2013 to dispose of non-core year-end. 3 (Impairment)/reversal of impairment of property, plant and equipment - other is made up as follows: UNITED STATES DOLLAR 2019 2018 2017 - Redundant assets at Cerro Corona (0.2) (1.9) (0.8) - Reversal of cash-generating unit impairment at Cerro Corona — — 53.4 (An impairment of US$66.4 million was recognised in 2016 due to the reduction in gold and copper reserves due to depletion, a decrease in the gold and copper price assumptions for 2017 and 2018, a lower resource price and an increase in the Peru tax rate. The reversal of the impairment in 2017 of US$53.4 million was due to a higher value-in-use pre-feasibility life-of-mine in-pit - Asset-specific impairment at Tarkwa — — (6.8 ) (Relating to aged, high maintenance and low effectiveness mining fleet that is no longer used). - Asset-specific impairment at Damang — — (3.5 ) (Relating to all assets at the Rex pit. Following a series of optimisations, the extensional drilling failed to deliver sufficient tonnages at viable grades to warrant further work). (Impairment)/reversal of impairment of property, plant and equipment - other (0.2 ) (1.9 ) 42.3 4 For the year ended 31 December 2019, the Group recognised an impairment of Rnil (US$nil) (2018: R6,470.9 million (US$481.5 million) and 2017: R3,495.0 billion (US$277.8 million)) in respect of the South Deep cash-generating unit due to the deferral of production. Rnil (US$nil) (2018: R963.9 million (US$71.7 million) and 2017: R3,495.0 billion (US$277.8 million)) of the total impairment was firstly allocated against goodwill and the remainder of Rnil (US$nil) (2018: R5,507.0 million (US$409.8 million) and 2017: Rnil (US$nil)) against other assets. The recoverable amount was based on its FVLCOD calculated using a combination of the market and the income approach (level 3 of the fair value hierarchy).

Included in Profit_(Loss) Befor

Included in Profit/(Loss) Before Royalties and Taxation	12 Months Ended
Included in Profit/(Loss) Before Royalties and Taxation	Dec. 31, 2019
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Included in Profit/(Loss) Before Royalties and Taxation	UNITED STATES DOLLAR 2019 2018 2017 7. INCLUDED IN PROFIT/(LOSS) BEFORE ROYALTIES AND TAXATION ARE THE FOLLOWING: Operating lease charges 1 — (2.3 ) (2.4 ) Damang - contract termination 1,2 (13.1 ) — — Loss on buy-back 1 (5.0 ) — — Social contributions and sponsorships 1 (18.0 ) (15.1 ) (19.6 ) Loss on sale of inventory 1,3 — (8.9 ) — Rehabilitation (expense)/income 1 (13.4 ) 0.9 13.5 Restructuring costs 4 (0.6 ) (113.9 ) (9.2 ) 1 Included under “Other costs, net” in the consolidated income statement. 2 Refer note 12.2 for further details. 3 The loss on sale of inventory related to the sale of inventory at Tarkwa as part of the transition to contractor mining. 4 The restructuring costs in 2019 comprise mainly separation packages at South Deep amounting to US$0.3 million (2018: US$11.2 million and 2017: US$2.3 million), Damang amounting to US$nil (2018: US$13.9 million and 2017: US$2.2 million) and Tarkwa amounting to US$0.3 million (2018: US$88.8 million and 2017: US$4.7 million). The restructuring costs of US$88.8 million at Tarkwa in 2018 related to the transition to contractor mining.

Royalties

Royalties	12 Months Ended
Royalties	Dec. 31, 2019
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Royalties	8. ROYALTIES South Africa (1.6 ) (1.0 ) (1.8 ) Foreign (72.1 ) (61.5 ) (60.2 ) Total royalties (73.7 ) (62.5 ) (62.0 ) Royalty rates South Africa (effective rate) 5 0.5 % 0.5 % 0.5 % Australia 6 2.5 % 2.5 % 2.5 % Ghana 7 3.5 % 3.0 % 3.0 % Peru 8 3.6 % 4.0 % 4.6 % 5 The Mineral and Petroleum Resource Royalty Act 2008 (“Royalty Act”) was promulgated on 24 November 2008 and became effective from 1 March 2010. The Royalty Act imposes a royalty on refined (mineral resources that have undergone a comprehensive level of beneficiation such as smelting and refining as defined in Schedule 1 of the Act) and unrefined (mineral resources that have undergone limited beneficiation as defined in Schedule 2 of the Act) minerals payable to the state. The royalty in respect of refined minerals (which include gold refined to 99.5% and above and platinum) is calculated by dividing earnings before interest and taxes (“EBIT”) by the product of 12.5 times gross revenue calculated as a percentage, plus an additional 0.5%. EBIT refers to taxable mining income (with certain exceptions such as no deduction for interest payable and foreign exchange losses) before assessed losses but after capital expenditure. A maximum royalty of 5% has been introduced on refined minerals. The effective rate of royalty tax payable for the year ended 31 December 2019 was 0.5% of mining revenue (2018: 0.5% and 2017: 0.5%) equalling the minimum charge per the formula. 6 The Australian operations are subject to a 2.5% (2018: 2.5% and 2017: 2.5%) gold royalty on revenue as the mineral rights are owned by the state. 7 Minerals are owned by the Republic of Ghana and held in trust by the President. During 2016, Gold Fields signed a Development Agreement (“DA”) with the Government of Ghana for both the Tarkwa and Damang mines. This agreement stated that the Ghanaian operations will be subject to a sliding scale for royalty rates, linked to the prevailing gold price (effective 1 January 2017). The sliding scale is as follows: Average gold price Low value High value Royalty rate US$0.00 - US$1,299.99 3.0 % US$1,300.00 - US$1,449.99 3.5 % US$1,450.00 - US$2,299.99 4.1 % US$2,300.00 - Unlimited 5.0 % 8 The Peruvian operations are subject to a mining royalty calculated on a sliding scale with rates ranging from 1% to 12% of the value of operating profit.

Mining and Income Taxation

Mining and Income Taxation	12 Months Ended
Mining and Income Taxation	Dec. 31, 2019
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Mining and Income Taxation	UNITED STATES DOLLAR 2019 2018 2017 9. MINING AND INCOME TAXATION The components of mining and income tax are the following: South African taxation - non-mining — — (1.2 ) - company and capital gains taxation (2.9 ) (1.1 ) (1.1 ) - prior year adjustment - current taxation 0.2 0.7 0.2 - deferred taxation (0.3 ) 208.5 12.1 Foreign taxation - current taxation (184.1 ) (127.9 ) (199.8 ) - dividend withholding tax (2.7 ) (13.7 ) — - prior year adjustment - current taxation (1.1 ) (3.7 ) (2.8 ) - deferred taxation 15.3 3.1 19.4 Total mining and income taxation (175.6 ) 65.9 (173.2 ) Major items causing the Group’s income taxation to differ from the maximum South African statutory mining tax rate of 34.0% (2018: 34.0% and 2017: 34.0%) were: Taxation on profit before taxation at maximum South African statutory mining tax rate (119.1 ) 139.6 (51.8 ) Rate adjustment to reflect the actual realised company tax rates in South Africa and offshore 17.9 (6.7 ) 19.2 Non-deductible (7.0 ) (12.8 ) (9.1 ) Non-deductible (17.0 ) (22.1 ) (19.7 ) Deferred tax assets not recognised on impairment and reversal of impairment of investments 1 (3.3 ) (12.5 ) 13.3 Impairment of South Deep goodwill — (24.4 ) (94.5 ) Non-deductible (29.9 ) (25.5 ) (24.2 ) Share of results of equity accounted investees, net of taxation 1.1 (4.5 ) (0.4 ) Non-taxable — 17.6 — Non-taxable 1.4 1.3 — Non-taxable 5.0 1.4 — Dividend withholding tax (2.9 ) (15.5 ) — Net non-deductible non-taxable (10.5 ) (7.6 ) (5.3 ) Deferred tax on unremitted earnings at Tarkwa and Cerro Corona (2018: Tarkwa and Cerro Corona and 2017: Tarkwa) (4.5 ) (1.1 ) (9.5 ) Deferred taxation movement on Peruvian Nuevo Sol devaluation against US dollar 2 0.1 (1.2 ) 5.2 Various Peruvian non-deductible (6.6 ) (7.5 ) (5.3 ) Deferred tax assets not recognised at Cerro Corona 3 (3.3 ) (14.9 ) (12.9 ) Utilisation of tax losses not previously recognised at Damang — — 7.1 Deferred tax assets recognised at Damang (2017: Cerro Corona and Damang) 4 — 6.5 19.8 Additional capital allowances recognised at South Deep 5 — 69.8 — Deferred tax charge on change of tax rate at South Deep — (10.9 ) — Prior year adjustments (1.0 ) (3.0 ) (2.6 ) Other 4.0 (0.1 ) (2.5 ) Total mining and income taxation (175.6 ) 65.9 (173.2 ) 1 Deferred tax assets not recognised on impairment of investments relate to the impairment of FSE (2017: reversal of impairment of APP). Refer to note 6 for details of impairments. 2 The functional currency of Cerro Corona is US dollar, however, the Peruvian tax base is based on values in Peruvian Nuevo Sol. 3 Deferred tax assets amounting to US$3.3 million (2018: US$14.9 million and 2017: US$12.9 million) were not recognised during the year at Cerro Corona to the extent that there is insufficient future taxable income available. Deferred tax assets were not recognised during the year related to deductible temporary differences on additions to fixed assets in the current financial year that would only reverse after the end of the life-of-mine 4 Due to year-end pre-feasibility life-of-mine 5 During 2014, the South African Revenue Services (“SARS”) issued a Finalisation of Audit Letter (“the Audit Letter”) stating that SARS had disallowed US$182.2 million of GFIJVH’s gross recognised capital allowance of US$925.5 million. On 30 May 2018, GFIJVH and SARS entered into a confidential settlement agreement (as provided for in the Tax Administration Act) in full and final settlement of this matter. As a result of the settlement GFIJVH recognised an additional US$185.1 million of capital allowances with a tax effect on this amount of US$53.7 million. Refer note 35 on Contingent Liabilities for further details. 2019 2018 2017 South Africa - current tax rates Mining tax 1 Y = 34 - 170/X Y = 34 - 170/X Y = 34 - 170/X Non-mining 2 28.0 % 28.0 % 28.0 % Company tax rate 28.0 % 28.0 % 28.0 % International operations - current tax rates Australia 30.0 % 30.0 % 30.0 % Ghana 32.5 % 32.5 % 32.5 % Peru 29.5 % 29.5 % 29.5 % 1 South African mining tax on mining income is determined according to a formula which takes into account the profit and revenue from mining operations. South African mining taxable income is determined after the deduction of all mining capital expenditure, with the proviso that this cannot result in an assessed loss. Capital expenditure amounts not deducted are carried forward as unredeemed capital expenditure to be deducted from future mining income. Accounting depreciation is ignored for the purpose of calculating South African mining taxation. The effective mining tax rate for Gold Fields Operations Limited (“GFO”) and GFI Joint Venture Holdings (Proprietary) Limited (“GFIJVH”), owners of the South Deep mine, has been calculated at 29% (2018: 29% and 2017: 30%). In the formula above, Y is the percentage rate of tax payable and X is the ratio of mining profit, after the deduction of redeemable capital expenditure, to mining revenue expressed as a percentage. 2 Non-mining Deferred tax is provided at the expected future rate for mining operations arising from temporary differences between the carrying values and tax values of assets and liabilities. At 31 December 2019, the Group had the following estimated amounts available for set-off (pre-tax): 2019 2018 Gross unredeemed capital expenditure US$ million Gross tax losses US$ million Gross tax losses recognised US$ million Gross Gross Gross losses South Africa 1 Gold Fields Operations Limited 681.2 196.2 — 638.0 206.4 — GFI Joint Venture Holdings (Proprietary) Limited 2 1,062.6 21.7 — 1,003.1 41.0 — Gold Fields Group Services (Pty) Limited — — — — 1.3 — 1,743.8 217.9 — 1,641.1 248.7 — International operations Exploration entities 3 — 337.7 337.7 — 430.0 430.0 Abosso Goldfields Limited 4 — 176.7 — — 80.9 — — 514.4 337.7 — 510.9 430.0 1 These deductions are available to be utilised against income generated by the relevant tax entity and do not expire unless the tax entity concerned ceases to operate for a period of longer than one year. Under South African mining tax ring-fencing legislation, each tax entity is treated separately and as such these deductions can only be utilised by the tax entities in which the deductions have been generated. South African tax losses and unredeemed capital expenditure have no expiration date. 2 During 2014, the South African Revenue Services (“SARS”) issued a Finalisation of Audit Letter (“the Audit Letter”) stating that SARS had disallowed US$182.2 million of GFIJVH’s gross recognised capital allowance of US$925.5 million. On 30 May 2018, GFIJVH and SARS entered into a confidential settlement agreement (as provided for in the Tax Administration Act) in full and final settlement of this matter. As a result of the settlement GFIJVH recognised an additional US$185.1 million of capital allowances, previously not recognised, with a tax effect on this amount of US$53.7 million. 3 The total tax losses of US$337.7 million (2018: US$430.0 million) comprise US$8.8 million (2018: US$18.6 million) tax losses that expire between one and two years, US$15.2 million (2018: US$27.6 million) tax losses that expire between two and five years, US$16.5 million (2018: US$20.3 million) tax losses that expire between five and 10 years, US$33.0 million (2018: US$42.3 million) tax losses that expire after 10 years and US$264.2 million (2018: US$320.9 million) tax losses that have no expiry date. 4 Tax losses may be carried forward for 5 years. These losses expire on a first-in-first-out US$84.5 million (2018: US$19.0 million) expire in 2 years, tax losses of US$46.2 million (2018: US$2.9 million) expire in 3 years, tax losses of US$46.0 million (2018: US$31.5 million) expire in 4 years and tax losses of US$nil million (2018: US$27.5 million) expire in 5 years.

Earnings Per Share

Earnings Per Share	12 Months Ended
Earnings Per Share	Dec. 31, 2019
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Earnings Per Share	UNITED STATES DOLLAR 2019 2018 2017 10. EARNINGS PER SHARE 10.1 Basic earnings/(loss) per share from continuing operations - cents 20 (42 ) (4 ) Basic earnings/(loss) per share is calculated by dividing the profit attributable to owners of the parent from continuing operations of US$161.6 million (2018: loss of US$348.2 million and 2017: loss of US$31.8 million) by the weighted average number of ordinary shares in issue during the year of 827,386,603 (2018: 821,532,707 and 2017: 820,611,806). 10.2 Basic earnings per share from discontinued operations - cents — — 2 Basic earnings per share is calculated by dividing the profit attributable to owners of the parent from discontinued operations of US$nil (2018: US$nil and 2017: US$13.1 million) by the weighted average number of ordinary shares in issue during the year of 827,386,603 (2018: 821,532,707 and 2017: 820,611,806). 10.3 Diluted earnings/(loss) per share from continuing operations - cents 19 (42 ) (4 ) Diluted earnings/(loss) per share is calculated on the basis of profit attributable to owners of the parent from continuing operations of US$161.6 million (2018: loss of US$348.2 million and 2017: loss of US$31.8 million) and 839,234,102 (2018: 832,465,491 and 2017: 826,920,421) shares being the diluted number of ordinary shares in issue during the year. The weighted average number of shares has been adjusted by the following to arrive at the diluted number of ordinary shares: Weighted average number of shares 827,386,603 821,532,707 820,611,806 Share options in issue 11,847,499 10,932,784 6,308,615 Diluted number of ordinary shares 839,234,102 832,465,491 826,920,421 10.4 Diluted earnings per share from discontinued operations - cents — — 2 Diluted earnings per share is calculated on the basis of profit attributable to owners of the parent from discontinued operations of US$nil (2018: US$nil and 2017: US$13.1 million) and 839,234,102 (2018: 832,465,491 and 2017: 826,920,421) shares being the diluted number of ordinary shares in issue during the year. 10.5 Headline earnings per share from continuing operations - cents 20 7 26 Headline earnings per share is calculated on the basis of adjusted net profit attributable to owners of the parent from continuing operations of US$162.7 million (2018: US$60.6 million and 2017: US$212.3 million) and 827,386,603 (2018: 821,532,707 and 2017: 820,611,806) shares being the weighted average number of ordinary shares in issue during the year. Net profit/(loss) attributable to owners of the parent from continuing operations is reconciled to headline earnings as follows: Long-form headline earnings reconciliation Profit/(loss) attributable to owners of the parent from continuing operations 161.6 (348.2 ) (31.8 ) Loss/(profit) on disposal of assets, net (0.8 ) 37.0 (2.6 ) Gross (1.2 ) 51.6 (4.0 ) Taxation effect 0.4 (12.0 ) 1.2 Non-controlling — (2.6 ) 0.2 Impairment, reversal of impairment and write-off 1.9 371.8 246.7 Impairment, net of reversal of impairment of investments and assets 9.8 520.3 200.2 Write-off 30.0 37.7 51.5 Profit on disposal of Maverix (2018: profit on dilution of Gold Fields’ interest in Maverix) (33.8 ) (4.0 ) — Gain on acquisition of Asanko — (51.8 ) — Release of foreign exchange reserve on disposal of subsidiary 4.6 — — Loss on disposal of subsidiary 0.3 — — Taxation effect (9.0 ) (130.4 ) (4.3 ) Non-controlling — — (0.7 ) Headline earnings 162.7 60.6 212.3 10.6 Headline earnings per share from discontinued operations - cents — — — Headline earnings per share is calculated on the basis of headline loss attributable to owners of the parent from discontinued operations of US$nil (US$nil and 2017: loss of US$2.4 million) and 827,386,603 (2018: 821,532,707 and 2017: 820,611,806) shares being the weighted average number of ordinary shares in issue during the year. Net profit attributable to owners of the parent from discontinued operations is reconciled to headline loss as follows: Long-form headline loss reconciliation Profit attributable to owners of the parent from discontinued operations — — 13.1 Impairment and write-off — — (15.5 ) Gain on sale of discontinued operation — — (23.5 ) Write-off — — 1.5 Taxation effect — — 6.5 Headline loss — — (2.4 ) 10.7 Diluted headline earnings per share from continuing operations—cents 19 7 26 Diluted headline earnings per share is calculated on the basis of headline profit attributable to owners of the parent continuing operations of US$162.7 million (2018: US$60.6 million and 2017: US$212.3 million) and 839,234,102 (2018: 832,465,491 and 2017: 826,920,421) shares being the diluted number of ordinary shares in issue during the year. 10.8 Diluted headline earnings per share from discontinued operations—cents — — — Diluted headline earnings per share is calculated on the basis of headline loss attributable to owners of the parent discontinued operations of US$nil (2018: US$nil and 2017: loss of US$2.4 million) and 839,234,102 (2018: 832,465,491 and 2017: 826,920,421) shares being the diluted number of ordinary shares in issue during the year.

Dividends

Dividends	12 Months Ended
Dividends	Dec. 31, 2019
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Dividends	11. DIVIDENDS 2018 final dividend of 20 SA cents per share (2017: 50 SA cents and 2016: 60 SA cents) declared on 15 February 2019. 11.5 34.7 37.5 2019 interim dividend of 60 SA cents was declared during 2019 (2018: 20 SA cents and 2017: 40 SA cents). 34.0 10.8 25.3 A final dividend in respect of the financial year ended 31 December 2019 of 100 SA cents per share was approved by the Board of Directors on 12 February 2020. This dividend payable is not reflected in these financial statements. Dividends are subject to Dividend Withholding Tax. Total dividends 45.5 45.5 62.8 Dividends per share - cents 5 6 8

Discontinued Operations

Discontinued Operations	12 Months Ended
Discontinued Operations	Dec. 31, 2019
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Discontinued Operations	12.1 DISCONTINUED OPERATIONS Gold Fields disposed of its Darlot mine to ASX-listed Red 5 undertook a rights issue to assist with the funding of the cash component and for general working capital purposes. Gold Fields used the A$7.0 million to underwrite the rights issue. Gold Fields received a total number of 116,875,821 Red 5 shares under the underwriting agreement for a consideration of A$5.8 million. All conditions precedent in terms of the sales agreement were met on 2 October 2017 and as a result Gold Fields accounted for a profit on the sale of Darlot of A$30.8 million (US$23.5 million). Post the completion of the sale, Gold Fields had a 19.9% shareholding in Red 5. Gold Fields did not have significant influence over Red 5 as the shareholding was below 20% and there were no qualitative factors indicating that significant influence exists. During 2019, Gold Fields sold its 19.9% shareholding in Red 5 for A$29.6 million (US$20.9 million) realising a profit of A$17.2 million (U$12.4 million) which was recognised directly in OCI. The financial results of Darlot were presented as a discontinued operation in the consolidated financial statements. UNITED STATES DOLLAR 2017 Below is a summary of the results of the discontinued operation for the year ended 31 December: Revenue 49.0 Cost of sales (50.7 ) Cost of sales before gold inventory change and amortisation and depreciation (46.3 ) Gold inventory change (0.9 ) Amortisation and depreciation (3.5 ) Other costs, net (1.9 ) Loss before royalties and taxation (3.6 ) Royalties (1.1 ) Loss before taxation (4.7 ) Mining and income taxation 1.4 Loss for the year from operating activities (3.3 ) Gain on sale of discontinued operation 23.5 Income tax on gain on sale of discontinued operation (7.1 ) Profit from discontinued operation, net of tax 13.1 2017 US$ A$ Below is a summary of assets and liabilities of the discontinued operation at 2 October 2017: Property, plant and equipment 3.3 4.3 Inventories 7.2 9.4 Trade and other receivables 0.1 0.1 Trade and other payables (8.7 ) (11.3 ) Environmental rehabilitation costs provision (12.9 ) (16.9 ) Net liabilities (11.0 ) (14.4 ) Total consideration received less costs to sell 1 12.5 16.4 Gain on sale of discontinued operations 23.5 30.8 1 Due to the discounting of the deferred consideration and the transaction costs incurred, the total consideration of A$16.4 million used in the determination of the gain on sale of discontinued operations is less than the A$18.5 million per the agreement. 12.2 ASSETS HELD FOR SALE Gold Fields served BCM Ghana Limited (the Company providing the contractor mining service to its Damang mine) a termination notice on 24 September 2019 and the contract was effectively terminated on 23 December 2019. As a result of the termination, the following obligations arose in terms of the early termination clauses in the contract: • Purchase of mining fleet from the contractor at the higher of market value plus a 25% premium or the finance pay-out • Demobilisation costs; • Early termination payment; and • Purchase of stores inventory. As part of the transition process to engage another contractor to continue mining, Damang obtained commitment from the new contractor to purchase the mining fleet from Damang at their market values in a back-to-back Non-current The costs associated with the termination of the contract include: 2019 Notes US$ Amount recognised as assets held for sale: Mining fleet 1 12.2 31.2 31.2 Amount recognised in profit or loss: Premium on mining fleet - 25% 1 7.8 Demobilisation costs 1.3 Early termination payment (paid before 31 December 2019) 4.0 7 13.1 Amount recognised in trade and other payables: Mining fleet1 31.2 Premium on mining fleet - 25%1 7.8 Demobilisation costs 1.3 27 40.3 1 This is based on the market value of the fleet. No amount has been recognised for the inventory as the value has not yet been determined. The ultimate outcome of this matter remains uncertain, with the value of the fleet and inventory to be purchased from BCM still to be agreed by both parties. These amounts are consequently subject to adjustment in the future.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
Property, Plant and Equipment	Dec. 31, 2019
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Property, Plant and Equipment	United States Dollars United States Dollars 31 December 2018 31 December 2019 Land, mineral Mine development, 1,2 Total Total Right-of-use assets Mine development, 1 Land, mineral 13. PROPERTY, PLANT AND EQUIPMENT Cost 674.3 9,886.4 10,560.7 Balance at beginning of the year 10,276.3 — 9,662.3 614.0 (10.4 ) 10.4 — Reclassifications — 0.4 271.7 (272.1) 14.0 800.2 814.2 Additions 612.5 — 582.1 30.4 — 96.2 96.2 Finance leases capitalised (refer note 33) — — — — — — — Reclassification of finance lease assets to right-of-use — 88.6 (88.6) — — — — Right-of-use 209.6 209.6 — — — — — Right-of-use 67.3 67.3 — — — — — Remeasurements of right-of-use 2 5.9 5.9 — — — 17.5 17.5 General borrowing costs capitalised 3 31.0 — 31.0 — (34.1 ) (494.6 ) (528.7) Disposals (14.3) — (11.0) (3.3) — — — Disposal of subsidiary (10.0) — (10.0) — — — — Scrapping of assets (388.1) (0.3) (381.6) (6.2) 24.1 — 24.1 Changes in estimates of rehabilitation assets 66.1 — — 66.1 (53.9 ) (653.8 ) (707.7 ) Translation adjustment 116.1 1.5 111.2 3.4 614.0 9,662.3 10,276.3 Balance at end of the year 10,972.4 373.0 10,167.1 432.3 Accumulated depreciation and impairment 34.7 5,633.1 5,667.8 Balance at beginning of the year 6,017.1 — 5,981.6 35.5 10.1 658.3 668.4 Charge for the year 610.0 42.0 555.1 12.9 — — — Reclassification of finance lease assets to right-of-use — 1.3 (1.3) — — 411.7 411.7 Impairment and reversal of impairment, net 4 0.2 0.2 — — — 37.7 37.7 Write-off 5 30.0 — 30.0 — (6.6 ) (391.6 ) (398.2 ) Disposals (11.8) — (8.7) (3.1) — — — Disposal of subsidiary (4.1) — (4.1) — — — — Scrapping of assets (388.1) (0.3) (381.6) (6.2) (2.7 ) (367.6 ) (370.3 ) Translation adjustment 62.0 0.8 56.7 4.5 35.5 5,981.6 6,017.1 Balance at end of the year 6,315.3 44.0 6,227.7 43.6 578.5 3,680.7 4,259.2 Carrying value at end of the year 4,657.1 329.0 3,939.4 388.7 1 Included in the cost of mine development, infrastructure and other assets are exploration and evaluation assets amounting to US$nil (2018: US$12.6 million). 2 The remeasurements relate mainly to leases at the Group’s Australian operations that have variable payments linked to the Austalian consumer price index (“CPI”). 3 General borrowing costs of US$31.0 million (2018: US$17.5 million) arising on group general borrowings were capitalised during the period and comprised US$20.0 million (2018: US9.9 million) borrowings costs related to the Damang reinvestment project and US$11.0 million (2018: US7.6 million) borrowings costs related to the Gruyere project. An average interest capitalisation rate of 6.2% (2018: 5.9%) was applied. 4 The impairment of US$0.2 million (2018: US$411.7 million) is made up of US$0.2 million (2018: US$1.9 million) impairment of property, plant and equipment and US$nil (2018: US$409.8 million) impairment of the South Deep cash-generating unit. 5 The write-off

Goodwill

Goodwill	12 Months Ended
Goodwill	Dec. 31, 2019
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Goodwill	UNITED STATES DOLLAR 2019 2018 14. GOODWILL Balance at beginning of the year — 76.6 Impairment — (71.7 ) Translation adjustment — (4.9 ) Balance at end of the year — — The goodwill arose on the acquisition of South Deep and was attributable to the upside potential of the asset, synergies, deferred tax and the gold multiple. The total goodwill is allocated to South Deep, the cash generating unit (“CGU”), where it is tested for impairment. For the year ended 31 December 2018, the Group fully impaired the remaining South Deep goodwill balance by recognising an impairment of R963.9 million (US$71.7 million) at South Deep. In line with the accounting policy, the recoverable amount was determined with reference to “fair value less costs of disposal” (“FVLCOD”). Management’s estimates and assumptions used in the 31 December 2018 FVLCOD calculation include: • Long-term gold price of R525,000 per kilogram (US$1,200 per ounce) for 2019 and R550,000 per kilogram (US$1,300 per ounce) for the life-of-mine • A nominal discount rate of 13.5%; • Fair value of US$17.0 per resource ounce, used for resource with infrastructure to calculate the expected cash flows associated with value beyond proved and probable reserves; • Resource ounces of 24.5 million ounces; and • The annual life-of-mine • proved and probable ore reserves of South Deep; • cash flows are based on the life-of-mine • capital expenditure estimates over the life-of-mine

Acquisition of Asanko Gold

Acquisition of Asanko Gold	12 Months Ended
Acquisition of Asanko Gold	Dec. 31, 2019
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Acquisition of Asanko Gold	15. ACQUISITION OF ASANKO GOLD Background On 29 March 2018, Gold Fields entered into certain definitive agreements (the “JV Transaction”) with Asanko Gold Inc. (“Asanko”) pursuant to which: • Gold Fields and Asanko would each own a 45% interest in Asanko Gold Ghana Limited (“AGGL”), the former Asanko subsidiary that owns the Asanko Gold Mine, with the Government of Ghana continuing to retain a 10% free carried interest in AGGL (the Joint Arrangement); • Gold Fields and Asanko would each own a 50% interest in Adansi Gold Company Limited (“Adansi”), the Asanko subsidiary that currently owns a number of exploration licenses; and • Gold Fields and Asanko would each acquire a 50% interest in the newly formed financing entity (Shika Group Finance Limited). On 20 June 2018, Gold Fields and Asanko received approval of the JV Transaction from the Ghanaian Minister of Lands and Natural Resources and the JV Transaction closed on 31 July 2018 once all conditions precedent were met. Recognition and measurement Gold Fields and Asanko have joint control and the Asanko transaction is structured as a separate vehicle and the Group has a residual interest in the net assets of Asanko. Accordingly, the Group has classified its interest in Asanko as a joint venture. Fair value measured There were no changes in 2019 to the provisional purchase price allocation performed at the time of acquisition of Asanko, therefore the purchase price allocation is considered final. Consideration transferred The following table summarises the acquisition date fair value of the consideration transferred: UNITED STATES DOLLAR 2018 Cash - Asanko redeemable preference shares and equity 165.0 Total consideration transferred 165.0 An additional US$20 million was invested in the redeemable preference shares in 2019. Refer note 17 for further details. Gain on acquisition of Asanko The gain on acquisition was determined as follows: UNITED STATES DOLLAR 2018 Total fair value of assets acquired 216.8 Redeemable preference shares equity financial asset acquired 1 129.9 Fair value of identifiable net assets acquired 2 86.9 Consideration transferred (165.0 ) Gain on acquisition 3 51.8 1 The redeemable preference shares have the following conditions: • Redeemable at the option of the issuer at par value; and • Non-interest The redeemable preference shares were recognised as an investment in an equity financial instrument measured at fair value through other comprehensive income. The key assumptions used to determine the fair value of the redeemable preference shares of US$129.9 million at acquisition were as follows: Par value of the preference shares US$ 165.0 million Market related interest rate 7.85 % Expected redemption period—2020 to 2023 5 years 2 The key assumptions used to determine the fair value of the net identifiable assets acquired were as follows: US$ gold price - 2018 to 2019 US$ 1,200/oz US$ gold price - 2020 onwards US$ 1,300/oz Discount rate 10.27 % Life-of-mine 12 years 3 The excess of the fair value of the identifiable net assets acquired over the consideration is recognised immediately in profit or loss as a gain on acquisition. The injection of capital into Asanko Gold Mine for an equity stake represented a favourable deal for Gold Fields, as Asanko needed to refinance the debt of Asanko Gold Mine, resulting in a gain on acquisition.

Equity Accounted Investees

Equity Accounted Investees	12 Months Ended
Equity Accounted Investees	Dec. 31, 2019
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Equity Accounted Investees	UNITED STATES DOLLAR 2019 2018 2017 16.1 EQUITY ACCOUNTED INVESTEES Investment in joint ventures 172.0 177.5 (a) Far Southeast Gold Resources Incorporated (“FSE”) 82.1 91.7 (b) Asanko Gold 89.9 85.8 Investment in associates — 47.6 (c) Maverix Metals Incorporated (“Maverix”) — 47.6 (d) Other associates — — Total equity accounted investees 172.0 225.1 Share of results of equity accounted investees, net of taxation recognised in the consolidated income statement are made up as follows: (a) Far Southeast Gold Resources Incorporated (“FSE”) (1.4 ) (12.9 ) (1.6 ) (b) Asanko Gold 4.1 (1.1 ) — (c) Maverix Metals Incorporated (“Maverix”) 0.4 0.9 0.3 (d) Other associates — — — Total share of results of equity investees net of tax 3.1 (13.1 ) (1.3 ) (a) Far Southeast Gold Resources Incorporated (“FSE”) Gold Fields interest in FSE, an unlisted entity incorporated in the Philippines, was 40% (2018: 40% and 2017: 40%) at 31 December 2019. Gold Fields paid US$10.0 million in option fees to Lepanto Consolidated Mining Company (“Lepanto”) during the six months ended 31 December 2010. In addition, Gold Fields paid non-refundable non-refundable The remaining 20% option is not currently exercisable until such time as FSE obtains a Foreign Technical Assistance Agreement (“FTAA”) which allows for direct majority foreign ownership and control. FSE has a 31 December year-end Investment in joint venture consists of: 2019 2018 Unlisted shares at cost 230.0 230.0 Equity contribution 93.6 92.2 Cumulative impairment 1 (147.9 ) (138.3 ) Share of accumulated losses brought forward (92.2 ) (79.3 ) Share of loss after taxation 2 (1.4 ) (12.9 ) Total investment in joint venture 3 82.1 91.7 1 Refer note 6 for details of impairment. 2 Gold Fields share of loss after taxation represents exploration and other costs, including work completed on a scoping study, which is fully funded by Gold Fields as part of their equity contribution. 3 FSE is a company incorporated under the laws of the Philippines and owns the gold-copper Far Southeast exploration project (the “FSE project”). During the exploration phase of the FSE project and as long as the 20% option remains exercisable, the Group has joint control over the FSE project. The Group will only have the power to direct the activities of FSE once it exercises the option to acquire the additional 20% shareholding in FSE, which is only exercisable once a FTAA is obtained. FSE has no revenues or significant assets or liabilities. Assets included in FSE represent the rights to explore and eventually mine the FSE project. (b) Asanko Gold The Asanko Gold joint venture entities comprise the following: • A 45% interest in Asanko Gold Ghana Limited (“AGGL”), incorporated in Ghana, which owns the Asanko Gold Mine. The Government of Ghana continues to retain a 10% free carried interest in AGGL; • A 50% interest in Adansi Gold Company Limited (“Adansi”), incorporated in Ghana; and • A 50% interest in Shika Group Finance Limited (“Shika”), incorporated in the Isle of Man. Gold Fields and Asanko have joint control and the Asanko transaction is structured as a separate vehicle and the Group has a residual interest in the net assets of Asanko. Accordingly, the Group has classified its interest in Asanko as a joint venture. Refer to note 15 for further information on the acquisition of this investment. Asanko has a 31 December year-end The Asanko joint venture is structured through a number of separate vehicles and the Group has a residual interest in the net assets of Asanko. Accordingly, the Group has classified its interest in Asanko as a joint venture. The following table summarises the financial information and the carrying amount of the Group’s interest in Asanko: Investment in joint venture at cost conists of: 2019 2018 Initial investment at cost 86.9 86.9 Share of accumulated losses brought forward (1.1 ) — Share of profit/(loss) after taxation 4.1 (1.1 ) Carrying value at 31 December 2018 89.9 85.8 The carrying value of the investment comprises the following: AGGL 9.5 5.4 Shika 80.4 80.4 Adansi 1 — — Total 89.9 85.8 The Group’s interest in the summarised financial statements of Asanko on a combined basis after fair value adjustments as determined at acquisition, is as follows: 2019 2018 Statement of financial position - Asanko Non-current 3 474.6 441.6 Current assets 2 120.0 109.3 Non-current (79.4 ) (34.2 ) Current liabilities (62.2 ) (52.7 ) Net assets 453.0 464.0 Less: Shika redeemable preference shares at acquisition (271.4 ) (291.4 ) Net assets attributable to ordinary share holders 181.6 172.6 Group’s share of net assets 89.9 85.8 Reconciled as follows: Cash consideration paid 165.0 165.0 Less: Consideration allocated to the redeemable preference shares (note 17) (129.9 ) (129.9 ) Consideration paid for equity portion 35.1 35.1 Gain on acquisition 51.8 51.8 Share of accumulated losses brought forward (1.1 ) — Share of profit/(loss) after taxation 4.1 (1.1 ) Carrying amount of interest in joint venture 89.9 85.8 Income statement - Asanko Revenue 341.0 122.0 Production costs (199.2 ) (79.0 ) Depreciation and amortisation (95.4 ) (34.3 ) Other expenses (20.1 ) (4.9 ) Royalties (17.2 ) (6.2 ) Income tax expense — — Profit/(loss) for the year (2018: five month period) 9.1 (2.4 ) Other comprehensive income — — Total comprehensive income 9.1 (2.4 ) Group’s share of total comprehensive income 4.1 (1.1 ) 1 Nominal value at 31 December 2019 and 2018 is less than US$0.1 million. 2 Current assets includes cash and cash equivalents amounting of US$43.7 million (2018: US$21.6 million). 3 Includes impact of fair value adjustment, amounting to US$39.6 million, to property, plant and equipment of the Asanko Gold mine as determined at acquisition. (c) Maverix Metals Incorporated (“Maverix”) Gold Fields’ interest in Maverix, listed on the Toronto Stock Exchange, was nil% (2018: 19.9%) at 31 December 2019. On 23 December 2016, Gold Fields sold a portfolio of eleven producing and non-producing In 2018, Maverix purchased a portfolio of royalties from Newmont (the “Transaction”). As part of the consideration for the Transaction, Maverix issued Newmont 60,000,000 common shares and 10,000,000 common share purchase warrants. The Transaction resulted in the dilution of Gold Fields’ interest in Maverix from 28% to 20% at 31 December 2018. The Transaction resulted in Gold Fields recognising a profit on the deemed disposal of its interest in Maverix of US$4.0 million. In line with its key strategic objective of paying down its debt, Gold Fields Limited sold its shareholding in Maverix during the year ended 31 December 2019. The sale of the shares, processed through a series of private market transactions, raised US$66.8 million in cash. After the first transaction, Maverix no longer met the definition of an associate and it was reclassified as a listed investment and a profit on disposal of US$14.6 million was recognised comprising a profit on disposal of associate of US$33.8 million, partially offset by a loss on derecognition of the investment in Maverix designated at fair value through profit or loss of US$19.2 million. Gold Fields retained 4,125,000 Maverix warrants, equivalent to a 3.68% interest in the company on a partially-diluted basis. The warrants are classified as derivative instruments and are included in investments (refer note 17). Maverix has a 31 December year-end Investment in associate consists of: Listed shares at cost 42.1 42.1 Profit on dilution of Gold Fields’ interest in Maverix 4.0 4.0 Transaction costs capitalised 0.3 0.3 Share of accumulated profits brought forward 1.2 0.3 Share of profit after taxation 0.4 0.9 Derecognition of associate (48.0 ) — Investment in associate - Maverix 1 — 47.6 (d) Other Investment in associate — — Rusoro Mining Limited (“Rusoro”) 2 — — 1 The fair value, based on the quoted market price of the investment, in Maverix at 31 December 2018 was US$74.7 million. 2 Represents a holding of 25.7% (2018: 25.7%) in Rusoro. The carrying value of Rusoro, incorporated in Venezuela, was written down to US$nil at 31 December 2010 due to losses incurred by the entity. The fair value, based on the quoted market price of the investment, in Rusoro at 31 December 2019 is US$6.5 million (2018: US$13.4 million).The unrecognised share of loss of Rusoro for the year amounted to US$4.2 million (2018: unrecognised shares of loss of US$2.6 million). The cumulative unrecognised share of losses of Rusoro at 31 December 2019 amounted to US$202.8 million (2018: US$198.6 million). On 22 August 2016, the Arbitration Tribunal, operating under the Additional Facility Rules of the World Bank’s International Centre for the Settlement of Investment Disputes, awarded Rusoro damages of US$967.8 million plus pre and post-award interest which currently equates to in excess of US$1.2 billion in the arbitration brought by Rusoro against the Bolivarian Republic of Venezuela (“Venezuela”). Venezuela has not complied with the arbitration award terms, which were issued on 22 August 2016. On 6 December 2017, Rusoro obtained a judgement against Venezuela in the Superior Court of Justice in Ontario, Canada, in excess of US$1.3 billion. The judgement, which was issued on default as a result of Venezuela’s failure to appear before the Ontario court, arised out of Rusoro’s ongoing dispute with Venezuela over the South American nation’s seizure of its gold mining properties in the country. The Canadian judgement, which confirmed an arbitration award issued in Rusoro’s favour in the same amount, was issued on 25 April 2017. Venezuela did not appeal or seek to vacate the judgement, and its time to do so expired. Rusoro further filed a suit in the Supreme Court of the State of New York, seeking recognition of the Canadian judgement. Rusoro brought the New York lawsuit in addition to an action it filed in the U.S. District Court for the District of Columbia, which seeks recognition of and the entry of judgement on the original arbitration award. A favourable ruling from either the New York or D.C. court will entitle Rusoro to use all legal procedures – including broad discovery from both Venezuela and third parties – that U.S. law provides judgement creditors. Any judgement issued in New York will also accrue interest at 9% per annum until the judgement is fully paid. On 19 October 2018, Rusoro announced that it had reached a settlement agreement with Venezuela by which the Venezuela government agreed to pay Rusoro US$1.28 billion to acquire the company’s mining data and full release of the judgement issued in favour of the company. In a decision dated 29 January 2019, the Paris Court of Appeals partially annulled the arbitral award issued in favour of the Company in August 2016. Rusoro continues to vigorously pursue all available remedies to reinstate such award. Management have not recognised this amount due to the uncertainty over its recoverability. 16.2 INTEREST IN JOINT OPERATION On 13 December 2016, Gold Fields purchased 50% of the Gruyere Gold Project and entered into a 50:50 unincorporated joint operation with Gold Road Resources Limited (“Gold Road”) for the development and operation of the Gruyere Gold Project in Western Australia, which comprises the Gruyere gold deposit as well as additional resources including Central Bore and Attila/Alaric. Gold Fields acquired 50% interest in the Gruyere Gold Project for a total purchase consideration of A$350.0 million payable in cash and a 1.5% royalty on Gold Fields’ share of production after total mine production exceeds 2 million ounces. The cash consideration is split with A$250.0 million payable on the effective date and A$100.0 million payable according to an agreed construction cash call schedule. Transaction costs of A$18.5 million (US$13.3 million) were incurred. Of the A$100.0 million payable, A$7.0 million was paid in 2016, A$78.0 million in 2017 and A$15.0 million in 2018. The Gruyere project was successfully completed during 2019, with first gold produced in June 2019. Commercial levels of production were achieved at the end of September 2019. Below is a summary of Gold Fields’ share of the joint operation and includes inter-company transactions and balances: 2019 2018 Statement of financial position US$ A$ US$ A$ Non current assets Property, plant and equipment 623.0 887.6 554.6 788.6 Current assets 27.5 39.3 11.7 16.5 Cash and cash equivalents 6.5 9.3 2.1 3.0 Inventories 18.3 26.1 0.8 1.1 Prepayments — — 6.4 9.1 Other receivables 2.7 3.9 2.4 3.3 Total assets 650.5 926.9 566.3 805.1 Total equity Retained earnings (0.6 ) (0.8 ) (4.7 ) (6.7 ) Non current liabilities 147.3 209.9 119.7 170.3 Deferred taxation 50.2 71.6 30.5 43.3 Lease liabilities 79.4 113.1 76.5 108.8 Environmental rehabilitation costs 17.6 25.1 12.7 18.2 Long-term incentive plan 0.1 0.1 — — Current liabilities 503.8 717.8 451.3 641.5 Related entity loans payable 480.4 684.5 439.0 624.1 Trade and other payables 17.5 24.9 7.7 10.9 Current portion of lease liabilities 5.9 8.4 4.6 6.5 Total equity and liabilities 650.5 926.9 566.3 805.1

Investments

Investments	12 Months Ended
Investments	Dec. 31, 2019
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Investments	UNITED STATES DOLLAR 2019 2018 17. INVESTMENTS Listed At fair value through OCI 1 47.9 93.0 Unlisted Asanko redeemable preference shares 2 95.5 132.9 Other — 0.1 Derivative instruments Warrants 2 11.7 9.3 Total investments 155.1 235.3 1 The listed investments comprise mainly investments in Asanko Gold Inc. of US$21.2 million, Cardinal Resources Limited of US$17.1 million, Magmatic Resources Limited of US$3.0 million and Chakana Copper Corp of US$3.0 million. Refer note 44 for further details of listed investments. The decrease in value of the listed investments was mainly due to the disposal of Red 5 Limited, Gold Road Resources Limited and Hummingbird Resources PLC. 2 Consists of 174,939,999 (2018: 164,939,999) redeemable preference shares at par value for US$174,939,999 (2018: US$164,939,999). The following table shows a reconciliation from the fair value at the beginning of the year (2018: at acquisition) to the fair value of the redeemable preference shares at the end of the year (level 3 financial instrument): Fair value at beginning of the year (2018: at acquision) 132.9 129.9 Purchase of preference shares 20.0 — Redemption of preference shares (10.0 ) — Net change in fair value (recognised in OCI) (47.4 ) 3.0 Fair value at end of the year 95.5 132.9 The fair value is based on the expected cash flows of the Asanko Gold Mine based on the life-of-mine life-of-mine Market related interest rate 8.50 % 7.85 % Expected redemption period 8 years 5 years Any reasonable change in the timing of the cash flows or market related discount rate could materially change the fair value of the redeemable preference shares (refer note 38 for sensitivily analysis performed). Refer to note 15 and 16.1 (b) for further details. 2 Consists of 4.125 million (2018: 10.0 million) common share purchase warrants of Maverix. Refer note 16.1 ( c ) for further details.

Environmental Trust Funds

Environmental Trust Funds	12 Months Ended
Environmental Trust Funds	Dec. 31, 2019
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Environmental Trust Funds	UNITED STATES DOLLAR 2019 2018 18. ENVIRONMENTAL TRUST FUNDS Balance at beginning of the year 60.8 55.5 Contributions from continuing operations 7.1 7.7 Interest earned 0.7 0.6 Translation adjustment 0.9 (3.0 ) Balance at end of the year 69.5 60.8 The trust funds consist of term deposits amounting to US$16.8 million (2018: US$14.8 million) in South Africa, as well as secured cash deposits amounting to US$52.7 million (2018: US$46.0 million) in Ghana. These funds are intended to fund environmental rehabilitation obligations of the Group’s South African and Ghanaian mines and are not available for general purposes of the Group. All income earned in these funds is re-invested

Inventories

Inventories	12 Months Ended
Inventories	Dec. 31, 2019
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Inventories	19. INVENTORIES Gold-in-process 375.1 325.0 Consumable stores 183.7 176.5 Total inventories 558.8 501.5 Heap l each and stockpiles inventories included in non-current 1 (141.0 ) (133.3 ) Total current inventories 2 417.8 368.2 1 Heap leach and stockpiles inventories will only be processed at the end of life-of-mine. 2 The cost of consumable stores consumed during the year and included in cost of sales amounted to US$270.4 million (2018: US$280.0 million).

Trade and Other Receivables

Trade and Other Receivables	12 Months Ended
Trade and Other Receivables	Dec. 31, 2019
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Trade and Other Receivables	UNITED STATES DOLLAR 2019 2018 1 20. TRADE AND OTHER RECEIVABLES Trade receivables - gold sales and copper concentrate 23.6 15.3 Trade receivables - other 18.1 16.5 Oil derivatives contracts (2018: Gold, copper and oil) 2 1.1 8.3 Receivables due from the sale of Tarkwa mining fleet 3 26.5 26.5 Deposits 0.1 0.2 Payroll receivables 2.4 2.9 Prepayments 42.5 43.3 Value Added Tax and import duties 16.0 18.1 Diesel rebate 0.9 1.1 Other 5.9 6.4 Total trade and other receivables 137.1 138.6 1 Refer note 42. 2 Comprises US$1.0 million (2018: US$1.7 million and 2017: US$5.1 million) relating to Australian oil derivative contracts, US$0.1 million (2018: US$3.0 million and 2017: US$9.0 million) relating to Ghanaian oil derivative contracts, US$nil (2018: US$2.4 million and 2017:US$nil) relating to Ghanaian gold derivative contracts, US$nil (2018: US$nil and 2017: US$10.9 million) relating to the gold derivative contracts at South Deep and US$nil (2018: US$1.2 million and 2017: US$nil) relating to Peruvian copper derivative contracts. Refer note 38 for further details. 3 Relates to the sale of mining fleet at Tarkwa as part of the transition to contractor mining.

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
Cash and Cash Equivalents	Dec. 31, 2019
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Cash and Cash Equivalents	21. CASH AND CASH EQUIVALENTS Cash at bank and on hand 515.0 219.7 Total cash and cash equivalents 515.0 219.7

Stated Capital

Stated Capital	12 Months Ended
Stated Capital	Dec. 31, 2019
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Stated Capital	UNITED STATES DOLLAR 2019 2018 22. STATED CAPITAL Stated capital 3,622.5 3,622.5 3,622.5 3,622.5 Number of Number of In issue at 1 January 821,532,707 821,532,707 Exercise of employee share options 7,100,000 — In issue at 31 December 828,632,707 821,532,707 Authorised 2,000,000,000 2,000,000,000 Authorised and issued Holders of shares are entitled to dividends as declared from time to time and are entitled to one vote per share at general meetings of the Company. In terms of the general authority granted by shareholders at the AGM on 21 May 2019, the authorised but unissued ordinary stated capital of the Company representing not more than 5% of the issued stated capital of the Company at that date, was placed under the control of the directors. This authority expires at the next annual general meeting where shareholders will be asked to place under the control of the directors the authorised but unissued ordinary stated capital of the Company representing not more than 5% of the issued stated capital of the Company from time to time. In terms of the JSE listing requirements, shareholders may, subject to certain conditions, authorise the directors to issue the shares held under their control for cash, other than by means of a rights offer, to shareholders. In order that the directors of the Company may be placed in a position to take advantage of favourable circumstances which may arise for the issue of such shares for cash, without restriction, for the benefit of the Company, shareholders will be asked to consider a special ordinary resolution to this effect at the forthcoming AGM. Repurchase of shares The Company has not exercised the general authority granted to buy back shares from its issued ordinary stated capital granted at the AGM held on 21 May 2019. Currently, the number of ordinary shares that may be bought back in any one financial year may not exceed 20% of the issued ordinary share capital as of 21 May 2019. At the next AGM, shareholders will be asked to renew the general authority for the acquisition by the Company, or a subsidiary of the Company, of its own shares. Beneficial shareholding The following beneficial shareholders hold 5% or more of the Company’s listed ordinary shares at 31 December 2019: Number of % of issued Government Employees Pension Fund 53,726,997 6.48 % VanEck Vectors Gold Miners ETF 52,395,279 6.32 %

Deferred Taxation

Deferred Taxation	12 Months Ended
Deferred Taxation	Dec. 31, 2019
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Deferred Taxation	UNITED STATES DOLLAR 2019 2018 23. DEFERRED TAXATION The detailed components of the net deferred taxation liability which results from the differences between the carrying amounts of assets and liabilities recognised for financial reporting and taxation purposes in different accounting periods are: Liabilities - Mining assets 908.3 835.7 - Right-of-use 101.5 — - Investment in environmental trust funds 3.7 3.2 - Inventories 13.3 11.3 - Unremitted earnings 13.3 9.3 - Other 13.0 5.2 Liabilities 1,053.1 864.7 Assets - Provisions (117.4 ) (95.8 ) - Tax losses 1 (120.6 ) (98.4 ) - Unredeemed capital expenditure 1 (505.7 ) (475.9 ) - Lease liabilities (2018: Finance lease liabilities) (103.0 ) (2.0 ) - Unrealised loss on financial instruments (38.3 ) (6.8 ) - Other — (0.4 ) Assets (885.0 ) (679.3 ) Net deferred taxation liabilities 168.1 185.4 Included in the statement of financial position as follows: Deferred taxation assets (265.5 ) (269.5 ) Deferred taxation liabilities 433.6 454.9 Net deferred taxation liabilities 168.1 185.4 Balance at beginning of the year 185.4 381.9 Recognised in profit or loss (15.0 ) (211.6 ) Recognised in OCI 8.4 (4.0 ) Translation adjustment (10.7 ) 19.1 Balance at end of the year 168.1 185.4 1 Tax losses and unredeemed capital expenditure have been recognised, as disclosed in note 9, to the extent that the tax paying entities will have taxable profits in the forseeable future (per the life-of-mine life-of-mine

Borrowings

Borrowings	12 Months Ended
Borrowings	Dec. 31, 2019
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Borrowings	24. BORROWINGS The terms and conditions of outstanding loans are as follows: UNITED STATES DOLLAR Facility Notes 2019 2018 1 2017 1 Borrower Nominal Interest rate Commitment Maturity date US$1 billion notes issue (the 2020 notes) 2 (a ) 601.4 849.4 847.9 Orogen 4.875 % — 7 October 2020 US$500 million 5-year 5-year 3 (b ) 496.3 — — Orogen 5.125 % — 15 May 2024 US$500 million 10-year 10-year 3 (c ) 496.1 — — Orogen 6.125 % — 15 May 2029 US$150 million revolving senior secured credit facility–old 4 (d ) — — — La Cima LIBOR plus 1.63 % 0.65 % 19 September 2017 US$150 million revolving senior secured credit facility–new 4 (d ) 83.5 83.5 83.5 La Cima LIBOR plus 1.20 % 0.50 % 19 September 2020 US$70 million revolving credit facility 5 (f ) — — — Ghana LIBOR plus 2.450 % 1.0 % 6 May 2017 US$100 million revolving credit facility 5 (e ) — 45.0 45.0 Ghana LIBOR plus 3.50 % 1.40 % 30 November 2021 A$500 million syndicated revolving credit facility 6 (f ) 168.5 316.5 231.5 Gruyere BBSY plus 2.175 % 0.87 % 24 May 2021 US$1,290 million term loan and revolving credit facilities 7 (g ) — 472.0 380.0 - Facility A (US$380 million) — 380.0 380.0 Orogen LIBOR plus 2.25 % — 6 June 2020 - Facility B (US$360 million) — 92.0 — Orogen LIBOR plus 1.95 % 0.68 % 6 June 2021 - Facility C (US$550 million) — — — Orogen LIBOR plus 2.20 % 0.77 % 6 June 2021 US$1,200 million revolving credit facilities 8 — — — - Facility A (US$600 million 3-year — — — Orogen/Ghana LIBOR plus 1.45 % 0.51 % 25 July 2022 - Facility B (US$600 million 5-year — — — Orogen/Ghana LIBOR plus 1.70 % 0.60 % 25 July 2024 R1,500 million Nedbank revolving credit facility - old 9 (h ) — — 79.5 GFIJVH/GFO JIBAR plus 2.50 % 0.85 % 7 March 2018 R1,500 million Nedbank revolving credit facility - new 9 — — — GFIJVH/GFO JIBAR plus 2.80 % 0.90 % 8 May 2023 R500 million Standard Bank revolving credit facility 10 (i ) — 13.7 — GFIJVH/GFO JIBAR plus 2.75 % 1.05 % 31 March 2020 R500 million Absa Bank revolving credit facility 11 (j ) — 34.2 — GFIJVH/GFO JIBAR plus 2.30 % 0.8925 % 31 March 2020 Short-term Rand uncommitted credit facilities 12 (k ) — 92.5 115.0 — — — — Total borrowings 1,845.8 1,906.8 1,782.4 Current borrowings (684.9 ) (92.5 ) (194.5 ) Non-current 1,160.9 1,814.3 1,587.9 1 Refer note 42. 2 The balance is net of unamortised transaction costs amounting to US$1.3 million (2018: US$3.0 million) which will unwind over the remaining period of the 2020 notes as an interest expense. The payment of all amounts due in respect of the 2020 notes is unconditionally and irrevocably guaranteed by Gold Fields Limited (“Gold Fields”), Gold Fields Operations Limited (“GFO”) and Gold Fields Holdings Company (BVI) Limited (“GF Holdings”) (collectively “the Guarantors”), on a joint and several basis. During 2016, Gold Fields Australasia (BVI) Limited (“GFA”) offered and accepted the purchase of an aggregate principal amount of notes equal to US$147.6 million at the purchase price of US$880 per US$1,000 in principal amount of notes. GFA intends to hold the notes acquired until their maturity on 7 October 2020. The group recognised a profit of US$17.7 million on the buy back of the 2020 notes. On 27 May 2019, Gold Fields announced the successful buy back of $250m of the outstanding 2020 notes at 102% of par as compared with a premium of 101.73% of par at the close of business on 24 May 2019. The buy-back 5-year 10-year buy-back 3 On 9 May 2019, Gold Fields successfully concluded the raising of two new bonds, a US$500 million 5-year 10-year The balances of the 5-year 10-year The payments of all amounts due in respect of the 5-year 10-year 4 Borrowings under the revolving senior secured credit facility are secured by first-ranking assignments of all rights, title and interest in all of La Cima’s concentrate sale agreements. In addition, the offshore and onshore collection accounts of La Cima are subject to an account control agreement and a first-ranking charge in favour of the lenders. This facility is non-recourse Group. The old revolving senior secured credit facility matured in 2017 and was refinanced through the new revolving credit facility on 22 September 2017. 5 Borrowings under the facility are guaranteed by Gold Fields Ghana Limited (“GF Ghana Limited”) and Abosso Goldfields Limited (“Abosso”). Borrowings under this facility were also secured by the registration of security over certain fleet vehicles owned by GF Ghana and Abosso (“Secured Assets”). In addition, the lenders were noted as first loss payees under the insurance contracts in respect of the Secured Assets and were assigned the rights under the maintenance contracts between certain suppliers of the Secured Assets. This facility is non-recourse Group. The US$70 million revolving senior secured credit facility in 2017 and was refinanced though the US$108 million revolving senior secured credit facility on 17 July 2017. On 22 March 2018, the Borrowers, the Original Lender and the Security Agent entered into an Agreement and Restatement Agreement to release any and all security interests created in favour of the Security Agent (“the Security”). The effective date of the release of the Security was 22 March 2018. On 23 November 2018, GF Ghana Limited and Abosso (as Borrowers) and The Standard Bank of South Africa Limited (acting through its Isle of Man branch) (as Original Lender and Agent) entered into the Fifth Amendment and Restatement Agreement which further amended the facility agreement. The effective date of the Fifth Amendment and Restatement Agreement is 30 November 2018. The final maturity date is the date falling three years after the effective date, namely 30 November 2021. 6 Borrowings under this facility are guaranteed by Gold Fields, GF Holdings, Orogen, GFO, GFIJVH and GF Ghana. 7 On 25 July 2019, the US$1,290 million term loan and revolving credit facilities were cancelled following the completion of the new US$1,200 million revolving credit facilities. Borrowings under this facility were guaranteed by Gold Fields, GF Holdings, Orogen, GFO, GFIJVH and GF Ghana. 8 On 25 July 2019, Gold Fields Orogen Holding (BVI) Limited and Gold Fields Ghana Holdings (BVI) Limited entered into a US$1,200 million revolving credit facilities agreement which became effective on the same day, with a syndicate of international banks and financial institutions. The new facilities comprise two tranches, a US$600 million 3 year revolving credit facility (with an option to extend to up to 2 years subject to lender consent) and a US$600 million 5 year revolving credit facility (with an option to extend to up to 2 years subject to lender consent). The purpose of the new facilities is to refinance the US$1,290 million term loan and revolving credit facilities, to repay the 2020 notes and to fund general corporate and working capital requirements of the Gold Fields group. Borrowings under this facility are guaranteed by Gold Fields, GF Holdings, Orogen, GF Ghana and Gruyere Holdings Pty Ltd (“Gruyere”). 9 Borrowings under this facility are guaranteed by Gold Fields, GFO, GF Holdings, Orogen, GFIJVH, GF Ghana and Gruyere. The old revolving credit facility matured on 7 March 2018 and was replaced by the new revolving credit facility on 8 May 2018. 10 Borrowings under this facility are guaranteed by Gold Fields, GFO, GF Holdings, Orogen, GFIJVH, GF Ghana and Gruyere. 11 Borrowings under this facility are guaranteed by Gold Fields, GFO, GF Holdings, Orogen, GFIJVH, GF Ghana and Gruyere. 12 The Group utilised uncommitted loan facilities from some of the major banks to fund the capital expenditure and working capital requirements of the South African operation. These facilities have no fixed terms, are short-term in nature and interest rates are market related. Borrowings under these facilities are guaranteed by Gold Fields. UNITED STATES DOLLAR 2019 2018 1 2017 1 24. BORROWINGS (continued) (a) US$1 billion notes issue Balance at beginning of the year 849.4 847.9 846.4 Buy-back (255.0 ) — — Loss on buy-back 5.0 — — Unwinding of transaction costs 2.0 1.5 1.5 Balance at end of the year 601.4 849.4 847.9 (b) US$500 million 5-year Loans advanced 500.0 — — Transaction costs (4.1 ) — — Unwinding of transaction costs 0.4 — — Balance at end of the year 496.3 — — (c) US$500 million 10-year Loans advanced 500.0 — — Transaction costs (4.1 ) — — Unwinding of transaction costs 0.2 — — Balance at end of the year 496.1 — — (d) US$150 million revolving senior secured credit facility - old Balance at beginning of the year — — 82.0 Repayments — — (82.0 ) Balance at end of the year — — — (e) US$150 million revolving senior secured credit facility - new Balance at beginning of the year 83.5 83.5 — Loans advanced — — 83.5 Balance at end of the year 83.5 83.5 83.5 (f) US$70 million revolving senior secured credit facility Balance at beginning of the year — — 45.0 Repayments — — (45.0 ) Balance at end of the year — — — (g) US$100 million revolving credit facility Balance at beginning of the year 45.0 45.0 — Loans advanced — — 45.0 Repayments (45.0 ) — — Balance at end of the year — 45.0 45.0 (h) A$500 million syndicated revolving credit facility Balance at beginning of the year 316.5 231.5 — Loans advanced — 119.9 236.6 Repayments (143.6 ) — — Translation adjustment (4.4 ) (34.9 ) (5.1 ) Balance at end of the year 168.5 316.5 231.5 (i) US$1,290 million term loan and revolving credit facilities Balance at beginning of the year 472.0 380.0 658.5 Loans advanced 434.4 382.6 73.5 Repayments (906.4 ) (290.6 ) (352.0 ) Balance at end of the year — 472.0 380 (j) R1,500 million Nedbank revolving credit facility - old Balance at beginning of the year — 79.5 — Loans advanced — 20.7 78.5 Repayments — (107.7 ) — Translation adjustment — 7.5 1.0 Balance at end of the year — — 79.5 (k) R500 million Standard Bank revolving credit facility Balance at beginning of the year 13.7 — — Loans advanced 21.2 13.7 — Repayments (35.1 ) — — Translation adjustment 0.2 — — Balance at end of the year — 13.7 — (l) R500 million Absa revolving credit facility Balance at beginning of the year 34.2 — — Loans advanced — 36.1 — Repayments (34.5 ) — — Translation adjustment 0.3 (1.9 ) — Balance at end of the year — 34.2 — (m) Short-term Rand uncommitted credit facilities Balance at beginning of the year 92.5 115.0 61.0 Loans advanced 90.6 117.0 270.5 Repayments (184.7 ) (137.6 ) (223.5 ) Translation adjustment 1.6 (1.9 ) 7.0 Balance at end of the year — 92.5 115.0 Total borrowings 1,845.8 1,906.8 1,782.4 The exposure of the Group’s borrowings to interest rate changes and the contractual repricing dates at the reporting dates are as follows: Variable rate with exposure to repricing (six months or less) 252.0 1,057.4 934.5 Fixed rate with no exposure to repricing 1,593.8 849.4 847.9 1,845.8 1,906.8 1,782.4 The carrying amounts of the Group’s borrowings are denominated in the following currencies: US Dollar 1,677.3 1,449.9 1,356.4 Australian Dollar 168.5 316.5 231.5 Rand — 140.4 194.5 1,845.8 1,906.8 1,782.4 The Group has the following undrawn borrowing facilities: Committed 1,727.6 1,097.7 1,305.1 Uncommitted 116.8 20.3 16.2 1,844.4 1,118.0 1,321.3 All of the above undrawn committed facilities have floating rates. The uncommitted facilities have no expiry dates and are open ended. Undrawn committed facilities have the following expiry dates: - within one year 137.9 — 39.7 - later than one year and not later than two years 282.5 93.0 — - later than two years and not later than three years 600.0 902.2 715.4 - later than three years and not later than five years 707.1 102.5 550.0 1,727.6 1,097.7 1,305.1 1 Refer note 42.

Provisions

Provisions	12 Months Ended
Provisions	Dec. 31, 2019
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Provisions	UNITED STATES DOLLAR 2019 2018 25. PROVISIONS 25.1 Environmental rehabilitation costs 370.3 289.6 25.2 Silicosis settlement costs 16.6 25.1 Other 4.2 4.8 Total provisions 391.1 319.5 25.1 Environmental rehabilitation costs Balance at beginning of the year 289.6 281.5 Changes in estimates 1 79.5 23.2 Interest expense 11.7 11.7 Payments (10.7 ) (9.6 ) Translation adjustment 0.2 (17.2 ) Balance at end of the year 2 370.3 289.6 The provision is calculated using the following gross closure cost estimates: South Africa 45.9 41.8 Ghana 105.6 100.4 Australia 198.2 178.2 Peru 86.2 79.1 Chile 0.4 0.4 Total gross closure cost estimates 436.3 399.9 The provision is calculated using the following assumptions: Inflation rate Discount rate 2019 South Africa 5.4 % 10.3 % Ghana 2.5 % 7.7%-7.9 % Australia 2.5 % 1.2%-1.6 % Peru 2.5 % 3.0 % Chile 2.5 % 2.6 % 2018 South Africa 5.5 % 10.0 % Ghana 2.2 % 10.3 % Australia 2.5 % 2.3%-2.5 % Peru 2.2 % 4.2 % Chile 2.2 % 3.6 % 1 Changes in estimates are defined as changes in reserves and corresponding changes in life of mine as well as changes in laws and regulations governing environmental matters, closure cost estimates and discount rates. 2 South African, Ghanaian, Australian and Peruvian mining companies are required by law to undertake rehabilitation as part of their ongoing operations. These environmental rehabilitation costs are funded as follows: • Ghana - reclamation bonds underwritten by banks and restricted cash (refer note 18); • South Africa - contributions into environmental trust funds (refer note 18) and guarantees (refer note 34); • Australia - mine rehabilitation fund levy; and • Peru - bank guarantees (refer note 34). 25.2 Silicosis settlement costs 1 Balance at the beginning of the year 25.1 31.9 Changes in estimates (1.6 ) (4.5 ) Unwinding of provision recognised as finance expense 1.3 2.0 Payment (4.6 ) — Translation 1.0 (4.3 ) Balance at end of the year 21.2 25.1 Current portion of silicosis settlement costs (4.6 ) — Non-current 16.6 25.1 1 The principal health risks associated with Gold Fields’ mining operations in South Africa arise from occupational exposure to silica dust, noise, heat and certain hazardous chemicals. The most significant occupational diseases affecting Gold Fields’ workforce include lung diseases (such as silicosis, tuberculosis, a combination of the two and chronic obstructive airways disease (“COAD”) as well as noise induced hearing loss (“NIHL”)). A consolidated application was brought against several South African mining companies, including Gold Fields, for certification of a class action on behalf of current or former mineworkers (and their dependants) who have allegedly contracted silicosis and/or tuberculosis while working for one or more of the mining companies listed in the application. This matter was previously disclosed as a contingent liability as the amount could not be estimated reliably. As a result of the ongoing work of the Gold Working Group (comprising African Rainbow Minerals, Anglo American SA, AngloGold Ashanti, Gold Fields, Harmony and Sibanye-Stillwater) (the “GWG Parties”) and engagements with affected stakeholders since 31 December 2016, Gold Fields was able to realibly estimate its share in the estimated cost in relation to the GWG Parties of a possible settlement of the class action claims and related costs during 2017. As a result, Gold Fields provided an amount of US$21.2 million (R297.1 million) (2018: US$25.1 million (R367.8 million)) for this obligation in the statement of financial position at 31 December 2019. The nominal amount of this provision is US$29.2 million (R408.4 million). Gold Fields believes that this remains a reasonable estimte of its share of the settlement of the class action claims and related costs. The assumptions that were made in the determination of the provision include silicosis prevalence rates, estimated settlement per claimant, benefit take-up

Long-term Incentive Plan

Long-term Incentive Plan	12 Months Ended
Long-term Incentive Plan	Dec. 31, 2019
Text block [abstract]
Long-term Incentive Plan	26. LONG-TERM INCENTIVE PLAN Opening balance 2.1 18.1 Charge to income statement 9.1 1.1 Payments — (17.8 ) Translation adjustment 0.3 0.7 Balance at end of the year 2 11.5 2.1 2 Senior and middle management receive awards under the LTIP. The performance conditions of the LTIP are approved annually by the Remuneration Committee. The expected timing of the cash outflows in respect of each grant is at the end of three years after the original award was made.

Trade and Other Payables

Trade and Other Payables	12 Months Ended
Trade and Other Payables	Dec. 31, 2019
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Trade and Other Payables	UNITED STATES DOLLAR 2019 2018 1 2017 1 27. TRADE AND OTHER PAYABLES Trade payables 138.1 60.4 105.4 Accruals and other payables 195.4 236.7 238.8 Payroll payables 36.8 44.3 51.7 Gold and foreign exchange derivative contracts 2 127.6 22.6 3.3 Leave pay accrual 44.7 43.0 42.5 Interest payable on loans 11.5 10.5 10.2 Damang - contract termination 3 40.3 — 11.2 Total trade and other payables 594.4 417.5 463.1 1 Refer note 42. 2 Comprises US$78.3 million (2018: US$12.3 million) relating to Australian gold derivative contracts, US$12.6 million (2018: US$1.6 million) relating to gold derivative contracts at South Deep, US$36.4 million (2018: US$nil) relating to the gold derivative contracts at Ghana and US$0.3 million (2018: US$8.7 million) relating to Australian foreign exchange derivative contracts. Refer note 38 for further details. 3 Refer note 12.2 for further details.

Cash Generated by Operations

Cash Generated by Operations	12 Months Ended
Cash Generated by Operations	Dec. 31, 2019
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Cash Generated by Operations	28. CASH GENERATED BY OPERATIONS Profit/(loss) from continuing operations 174.7 (344.8 ) (20.8 ) Mining and income taxation 175.6 (65.9 ) 173.2 Royalties 73.7 62.5 62.0 Interest expense 132.6 91.8 91.2 Interest received (6.6 ) (6.8 ) (5.1 ) Amortisation and depreciation 610.0 668.4 748.1 Interest expense - environmental rehabilitation 11.7 11.7 12.1 Non-cash 13.4 (0.9 ) (13.5 ) Interest received - environmental trust funds (0.7 ) (0.6 ) (0.5 ) Impairment, net of reversal of impairment of investments and assets 9.8 520.3 200.2 Write-off 30.0 37.7 51.5 (Profit)/loss on disposal of assets (1.2 ) 51.6 (4.0 ) Gain on acquisition of Asanko — (51.8 ) — Unrealised loss/(gain) on derivative contracts 112.6 36.6 (20.7 ) Fair value (gain)/loss on Maverix warrants (4.2 ) (3.8 ) 0.4 Profit on disposal of Maverix (14.6 ) (4.0 ) — Silicosis settlement costs (1.6 ) (4.5 ) 30.2 Share-based payments 20.5 37.5 26.8 Long-term incentive plan expense 9.1 1.1 5.0 Payment of long-term incentive plan — (17.8 ) (11.5 ) Borrowing costs capitalised (43.4 ) (17.5 ) (22.9 ) Share of results of equity-accounted investees, net of taxation (4.5 ) 0.2 (0.3 ) Other 5 9 (3.0 ) (14.9 ) Total cash generated by operations 1,302.8 998.0 1,286.5 1 Refer note 42. 2 Comprises US$78.3 million (2018: US$12.3 million) relating to Australian gold derivative contracts, US$12.6 million (2018: US$1.6 million) relating to gold derivative contracts at South Deep, US$36.4 million (2018: US$nil) relating to the gold derivative contracts at Ghana and US$0.3 million (2018: US$8.7 million) relating to Australian foreign exchange derivative contracts. Refer note 38 for further details. 3 Refer note 12.2 for further details.

Change in Working Capital

Change in Working Capital	12 Months Ended
Change in Working Capital	Dec. 31, 2019
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Change in Working Capital	UNITED STATES DOLLAR 2019 2018 1 2017 1 29. CHANGE IN WORKING CAPITAL Inventories (56.2 ) 0.8 (55.1 ) Trade and other receivables (5.6 ) (0.5 ) (19.6 ) Trade and other payables 37.2 (32.2 ) (15.2 ) Total change in working capital (24.6 ) (31.9 ) (89.9 ) 1 Refer note 42.

Royalties Paid

Royalties Paid	12 Months Ended
Royalties Paid	Dec. 31, 2019
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Royalties Paid	30. ROYALTIES PAID Amount owing at beginning of the year (12.5 ) (16.3 ) (19.8 ) Royalties (73.7 ) (62.5 ) (62.0 ) Amount owing at end of the year 13.9 12.5 16.3 Translation — 0.8 (0.5 ) Total royalties paid (72.3 ) (65.5 ) (66.0 ) 1 Refer note 42.

Taxation Paid

Taxation Paid	12 Months Ended
Taxation Paid	Dec. 31, 2019
Text block [abstract]
Taxation Paid	31. TAXATION PAID Amount owing at beginning of the year (0.9 ) (46.7 ) (87.0 ) SA and foreign current taxation recognised in profit or loss (190.6 ) (145.7 ) (204.7 ) SA and foreign current taxation recognised in OCI (14.7 ) — — Amount owing at end of the year 24.8 0.9 46.7 Translation (0.4 ) 0.8 (4.4 ) Total taxation paid (181.8 ) (190.7 ) (249.4 ) 1 Refer note 42.

Retirement Benefits

Retirement Benefits	12 Months Ended
Retirement Benefits	Dec. 31, 2019
Text block [abstract]
Retirement Benefits	32. RETIREMENT BENEFITS All employees are members of various defined contribution retirement schemes. Contributions to the various retirement schemes are fully expensed during the period in which they are incurred. Retirement benefit costs 27.0 32.8 33.7 1 Refer note 42.

Lease Liabilities

Lease Liabilities	12 Months Ended
Lease Liabilities	Dec. 31, 2019
Text block [abstract]
Lease Liabilities	33. LEASE LIABILITIES (2018: FINANCE LEASE LIABILITIES) Balance at the beginning of the year 88.6 — Leases recognised on adoption of IFRS 16 (refer note 41) 209.6 — Additions during the year (2018: finance lease additions) 1 67.3 96.2 Remeasurements of leases during the year 2 5.9 — Interest expense 18.6 0.2 Repayments (56.9 ) (2.5 ) Translation adjustment (0.2 ) (5.3 ) Balance at the end of the year 332.9 88.6 Current portion of lease liability (45.2 ) (8.5 ) Non-current 287.7 80.1 Lease liabilities are payable as follows: Future minimum lease payments - within one year 63.9 11.6 - later than one and not later than five years 178.2 41.5 - later than five years 205.3 58.4 Total 447.4 111.5 Interest - within one year 18.7 3.1 - later than one and not later than five years 55.2 11.5 - later than five years 40.6 8.3 Total 114.5 22.9 Present value of minimum lease payments - within one year 45.2 8.5 - later than one and not later than five years 123.0 30.0 - later than five years 164.7 50.1 Total 332.9 88.6 1 The additions in 2019 relate mainly to the gas fired power plant and solar farm portion of the power purchase agreement at Agnew (2018: Power purchase agreement at Gruyere). 2 The remeasurements relate mainly to leases at the Group’s Australian operations that have variable payments linked to the Australian consumer price index (“CPI”).

Commitments

Commitments	12 Months Ended
Commitments	Dec. 31, 2019
Text block [abstract]
Commitments	UNITED STATES DOLLAR 2019 2018 34. COMMITMENTS Capital expenditure Contracted for 4 7.9 50.0 Operating leases 1 - within one year — 76.7 - later than one and not later than five years — 256.5 - later than five years — 324.2 31 December 2019 Undiscounted 2 Non-lease 3 Fully variable 4 Total Lease contracts - within one year 63.9 98.7 502.3 664.9 - later than one and not later than five years 178.2 290.1 1,410.3 1,878.6 - later than five years 205.3 83.3 21.7 310.3 447.4 472.1 1,943.3 2,853.8 Guarantee s The Group provides environmental obligation guarantees and other guarantees with respect to its South African, Peruvian, Ghanaian and Australian operations. These guarantees amounted to US$154.3 million at 31 December 2018 (2018: US$207.6 million and 2017: USS$112.1 million) (refer note 25.1). 1 The operating lease commitments in 2018 consisted mainly of power purchase agreements entered into at Tarkwa, Damang, Granny Smith and Gruyere. Included in these amounts were payments for non-lease 2 The undiscounted lease liabilities relate to the the gross cashflows used to determine the lease liabilities in terms of IFRS 1 6 Leases to the leases recognised in note 33. 3 The non-lease 4 These are the total commitments per lease contracts where the payments have been determined to be fully variable, as a result no lease liability has been recorded. Included in these amounts are payments for non-lease elements of the arrangement. 5 Leases amounting to US$33.4 million have been entered into during 2019 but the use of the assets have not yet commenced at 31 December 2019. These relates mainly to wind farm and battery storage portion of the power purchase agreement at Agnew.

Contingent Liabilities

Contingent Liabilities	12 Months Ended
Contingent Liabilities	Dec. 31, 2019
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Contingent Liabilities	35. CONTINGENT LIABILITIES Randgold and Exploration summons On 21 August 2008, Gold Fields Operations Limited, or GFO, formerly known as Western Areas Limited, a subsidiary of Gold Fields, received a summons from Randgold and Exploration Company Limited, or R&E, and African Strategic Investment (Holdings) Limited. The summons claims that during the period that GFO was under the control of Brett Kebble, Roger Kebble and others, GFO assisted in the unlawful disposal of shares owned by R&E in Randgold Resources Limited, or Resources, and Afrikander Lease Limited, now Uranium One. The claims have been computed in various ways. The highest claims have been computed on the basis of the highest prices of Resources and Uranium One shares between the dates of the alleged thefts and May 2017 (approximately R43.7 billion). The alternative claims are computed based on the value of the shares as at the date of judgement (which is not yet calculable), plus dividend amounts that would have been received and based on the market value of the shares at the time they were allegedly misappropriated, plus dividends that would have been received (cumulatively equating to approximately R26.9 billion). Simultaneously with delivering its plea, GFO joined certain third parties to the action (namely JCI Limited, JC Lamprecht, RAR Kebble and the deceased and insolvent estate of BK Kebble), in order to enable it to claim compensation against such third parties in the event that the plaintiffs are successful in one or more of their claims. In addition, notices in terms of section 2(2)(b) of the Apportionment of Damages Act, 1956 were served on various parties by GFO, in order to enable it to make a claim for a contribution against such parties in terms of the Apportionment of Damages Act, should the plaintiffs be successful in one or more of its claims. The matter has been allocated to the commercial court of the Gauteng Local Division, Johannesburg, as a result of which it will be case managed by the Judge assigned to the matter, in order to ensure that it progresses to trial. GFO’s assessment remains that it has sustainable defences to these claims and, accordingly, GFO’s attorneys were instructed to vigorously defend the claims. The ultimate outcome of the claims cannot presently be determined and, accordingly, no adjustment for any effects on the Group that may result from these claims, if any, has been made in the consolidated financial statements. Silicosis Class action A consolidated application has been brought against several South African mining companies, including Gold Fields, for certification of a class action on behalf of current or former mineworkers (and their dependants) who have allegedly contracted silicosis and/or tuberculosis while working for one or more of the mining companies listed in the application. On 3 May 2018, the Gold Working Group (comprising African Rainbow Minerals, Anglo American SA, AngloGold Ashanti, Gold Fields, Harmony and Sibanye-Stillwater) (the “GWG Parties”) concluded a settlement agreement (the “Settlement Agreement”) with the attorneys representing claimants in the silicosis and tuberculosis class action litigation. The Settlement Agreement provides meaningful compensation to all eligible workers suffering from silicosis and/or tuberculosis who worked in the GWG Parties’ mines from 12 March 1965 to the effective date of the Settlement Agreement. A full bench of the High Court, Gauteng Local Division, approved the Settlement Agreement on 26 July 2019 (“Approval Order”). The Settlement Agreement and Approval Order contained two suspensive conditions, which have subsequently been fulfilled and, in accordance with the provisions of the Settlement Agreement and the Approval Order, the Settlement Agreement has become effective on 10 December 2019. The settlement trust, known as the Tshiamiso Trust, was registered on 28 November 2019. Tshiamiso is a Setswana word meaning “to make good” or “to correct”. Now that the Settlement Agreement is effective, the Tshiamiso Trust will commence its work to oversee the processing of claims and payment of benefits to eligible workers, including the undertaking of benefit medical examinations. The GWG Parties have paid the legal costs of the claimants’ attorneys, together with other initial amounts, in accordance with the provisions of the Settlement Agreement and the Approval Order. On 31 January 2020, the GWG Parties commenced the payment of their quarterly administration and benefit contributions to the Tshiamiso Trust to enable the trustees to settle benefits of eligible workers. Further details on the establishment of the Trust and how potential beneficiaries can establish whether they might be eligible for compensation under the Trust and, if they are potentially eligible, how to go about establishing a claim, will be made in due course. Financial provision Gold Fields has provided for the estimated cost of the class action settlement based on actuarial assessments and the provisions of the Settlement Agreement. At 31 December 2019, the provision for Gold Fields’ share of the settlement of the class action claims and related costs amounts to US$21.2 million (R297.1 million) (2018: US$25.1 million (R367.8 million)). The nominal value of this provision is US$29.2 million (R408.4 million). The ultimate outcome of this matter however remains uncertain, with the number of eligible workers successfully submitting claims and receiving compensation being uncertain. The provision is consequently subject to adjustment in the future. Acid mine drainage Acid mine drainage (“AMD”) or acid rock drainage (“ARD”), collectively called acid drainage (“AD”) is formed when certain sulphide minerals in rocks are exposed to oxidising conditions (such as the presence of oxygen, combined with water). AD can occur under natural conditions or as a result of the sulphide minerals that are encountered and exposed to oxidation during mining or during storage in waste rock dumps, ore stockpiles or tailings dams. The acidic water that forms usually contains iron and other metals if they are contained in the host rock. Gold Fields has identified incidences of AD, and the risk of potential short-term and long-term AD issues, specifically at its Cerro Corona, South Deep and Damang mines and, at currently immaterial levels, its Tarkwa and St Ives mines. The AD issues at Damang mine are confined to the Rex open pit. Gold Fields commissioned additional technical studies during 2015 to 2019 to identify the steps required to prevent or mitigate the potentially material AD impacts at its Cerro Corona, Damang and South Deep operations, but none of these studies have allowed Gold Fields to generate a reliable estimate of the total potential impact on the Group. Gold Fields’ mine closure cost estimates for 2019 contain costs for the aspects of AD management which the Group has reliably been able to estimate. Gold Fields continues to investigate technical solutions at its South Deep, Cerro Corona and Damang mines to better inform appropriate short- and long-term mitigation strategies for AD management and to work towards a reasonable cost estimate of these potential issues. Further studies are planned for 2020. No adjustment for any effects on the Group that may result from AD, if any, has been made in the consolidated financial statements other than through the Group’s normal environmental rehabilitation costs provision (refer note 25.1). South Deep tax dispute The South Deep mine (“South Deep”) is jointly owned and operated by GFIJVH (50%) and GFO (50%). During the September 2014 quarter, the South African Revenue Services (“SARS”) issued a Finalisation of Audit Letter (“the Audit Letter”) stating that SARS has disallowed GFIJVH’s Additional Capital Allowance claim. The Group objected to SARS’ decision and vigorously defended its position. After no resolution was achieved during a Tax Court sitting in 2017, GFIJVH appealed to the High Court. The Group announced that on 30 May 2018 GFIJVH and SARS entered into a confidential settlement agreement (as provided for in the Tax Administration Act) in full and final settlement of this matter. As a result of the settlement GFIJVH has recognised an additional R2,708.0 million (US$185.1 million) of capital allowance with a tax benefit on this amount of R785.3 million (US$53.7 million).

Events After the Reporting Date

Events After the Reporting Date	12 Months Ended
Events After the Reporting Date	Dec. 31, 2019
Text block [abstract]
Events After the Reporting Date	36. EVENTS AFTER THE REPORTING DATE Final dividend On 12 February 2020, Gold Fields declared a final dividend of 100 SA cents per share. Placing of ordinary shares On 12 February 2020 Gold Fields successfully completed the placing of 41,431,635 90.20 3.7 (US$249.0 million) were raised through the placing. The net proceeds from the placing will be used to continue pre-development work and commence construction of the Salares Norte project. Salares Norte As reported at the end of 2019, the Environmental Impact Assessment for the project was approved on 18 December 2019, earlier than estimated in the project schedule. As a result, the updated feasibility study was presented to the Board in February 202 and the final notice to proceed was provided by the Board. The updated capital expenditure estimate is US$860 million (in 2020 terms). The capital expenditure is scheduled over a 33-month Sale of investment in Cardinal Resources Limited On 16 March 2020, Gold Fields sold its shareholding of 81,038,233 shares in Cardinal Resources Limited for a total cash consideration of A$37.1 million to Nord Gold SE. Hedging Foreign currency hedging Subsequent to year-end, Salares Norte entered into Chilean Peso/US Dollar average rate forwards for a notional US$544.5 million for the period July 2020 to December 2022 at an average strike price of CLP836.45. Gold commodity hedging Subsequent to year-end, Australia entered into Asian puts for the period January 2021 to December 2021 for a notional 100,000.00 ounces of gold with a strike price of A$2,200 per ounce. Furthermore, Asian puts for the period January 2021 to December 2021 for a notional 200,000.00 ounces of gold with a strike price of A$2,100 per ounce were entered into. Loan advanced to mining contractor In February 2020, the Gold Fields Board approved an advance payment, recoverable over 36 months, of approximately US$68 million to one of the mining contractors at its operations in Ghana for the purchase of mining equipment. Of this amount approved, US$62 million was paid on 23 March 2020. Covid-19 Subsequent to year-end – and at the time of finalising the financial statements – the Covid-19 (coronavirus) pandemic required Gold Fields to support government protocols and directives in countries in which we have a presence to contain the spread of the virus. Our operations introduced a wide range of measures to reduce the risk of potential infections of people at our operations and limit disruption at our mines. We are in full support of the governments’ measures and our further actions going forward will be determined by the nature and extent of incidences of infections at our mines and in the countries in which we operate. In line with the directive by the South African government on 23 March 2020, South Deep has been placed on care-and-maintenance during the resultant 21-day lockdown in South Africa. Prior to that directive being announced, we had implemented other measures to manage the risk to its people and business, including international business travel restrictions, self-quarantine for people displaying flu-like symptoms and comprehensive hygiene awareness campaigns. There is of course the possibility of further lockdowns and restrictions in the countries in which we have a presence and contingency plans are being formulated to deal with these potential eventualities. As at the date hereof, the Group has approximately US$600m in cash and in excess of US$1.5bn of committed, undrawn debt facilities. As a result, management believes that the Group has sufficient liquidity to withstand an interruption to our operations, but that notwithstanding, we will continue to work towards minimising the impact of Covid-19 on our mines. We have evaluated the potential effects of these conditions assuming a three month closure period across the Group (period used is based on periods of total lockdown experienced in China and South Korea) of operations. Gold Fields is of the view that it will be a going concern for the foreseeable future. However, this estimate is inherently uncertain as it is based on the expectations of future events, including the length of the closure period, which are currently unknown.

Financial Instruments

Financial Instruments	12 Months Ended
Financial Instruments	Dec. 31, 2019
Text block [abstract]
Financial Instruments	37. FINANCIAL INSTRUMENTS Accounting classifications and fair values The following tables show the carrying amounts and fair values of financial assets and financial liabilities. United States Dollar Carrying amount Fair value Figures in millions unless otherwise stated Fair value Fair value Financal Other Total Total 2019 Financial assets measured at fair value - Environmental trust funds 7.2 — — — 7.2 7.2 - Trade receivables from provisional copper sales 22.8 — — — 22.8 22.8 - Investments — 47.9 — — 47.9 47.9 - Asanko redeemable preference shares — 95.5 — — 95.5 95.5 - Warrants 11.7 — — — 11.7 11.7 - Oil derivatives contracts (2018: Gold, copper and oil) 1.1 — — — 1.1 1.1 Total 42.8 143.4 — — 186.2 186.2 Financial assets not measured at fair value - Environmental trust funds — — 62.3 — 62.3 62.3 - Trade and other receivables — — 51.4 — 51.4 51.4 - Cash and cash equivalents — — 515.0 — 515.0 515.0 Total — — 628.7 — 628.7 628.7 Financial liabilities measured at fair value - Gold and foreign exchange derivative contracts 127.6 — — — 127.6 127.6 Total 127.6 — — — 127.6 127.6 Financial liabilities not measured at fair value - Borrowings — — — 1,845.8 1,845.8 1,952.4 - Trade and other payables — — — 385.3 385.3 385.3 - Finance lease liabilities — — — 332.9 332.9 332.9 Total — — — 2,564.0 2,564.0 2,670.6 2018 Restated 1 Financial assets measured at fair value - Environmental trust funds 6.5 — — — 6.5 6.5 - Trade receivables from provisional copper sales 15.3 — — — 15.3 15.3 - Investments — 93.1 — — 93.1 93.1 - Asanko redeemable preference shares — 132.9 — — 132.9 132.9 - Warrants 9.3 — — — 9.3 9.3 - Gold, copper and oil derivative contracts 8.3 — — — 8.3 8.3 Total 39.4 226.0 — — 265.4 265.4 Financial assets not measured at fair value - Environmental trust funds — — 54.3 — 54.3 54.3 - Trade and other receivables — — 49.6 — 49.6 49.6 - Cash and cash equivalents — — 219.7 — 219.7 219.7 Total — — 323.6 — 323.6 323.6 Financial liabilities measured at fair value - Gold, copper and foreign exchange derivative contracts 22.6 — — — 22.6 22.6 Total 22.6 — — — 22.6 22.6 Financial liabilities not measured at fair value - Borrowings — — — 1,906.8 1,906.8 1,897.0 - Trade and other payables — — — 307.6 307.6 307.6 - Finance lease liabilities — — — 88.6 88.6 88.6 Total — — — 2,303.0 2,303.0 2,293.2 1 Refer note 42. The following methods and assumptions were used to estimate the fair value of each class of financial instrument: Trade and other receivables, trade and other payables and cash and cash equivalents The carrying amounts approximate fair values due to the short maturity of these instruments. Investments and redeemable preference shares The fair value of publicly traded instruments (listed investments) is based on quoted market values. Asanko redeemable preference shares are accounted for at fair value based on the expected cash flows as set out in note 17. Warrants Warrants are measured at fair value, using a standard European call option format based on a standard option theory model, with adjustments to the fair value being recognised in profit or loss. Oil, gold, copper and foreign exchange derivative contracts The fair values of these contracts are determined by using the applicable valuation models for each instrument type with the key inputs being forward prices, interest rates and volatilties. Environmental trust funds The environmental trust funds are measured at fair value through profit or loss or Borrowings The 2020 notes, the 5-year 10-year Fair value hierarchy The Group has the following hierarchy for measuring the fair value of assets and liabilities at the reporting date: Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2 Inputs other than quoted prices in level 1 that are observable for the asset or liability, either directly (as prices) or indirectly (derived from prices); and Level 3 Inputs for the asset or liability that are not based on observable market data (unobservable inputs). The Group recognises transfers between levels of the fair value hierarchy at the end of the reporting period during which the change has occurred. There were no transfers during the year ended 31 December 2019 and 2018. The following table sets out the Group’s financial assets and financial liabilities by level within the fair value hierarchy at the reporting date: United States Dollar 2019 2018 Restated 1 Figures in millions unless otherwise stated Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Financial assets measured at fair value Environmental trust funds 7.2 — 7.2 — 6.5 — 6.5 — Trade receivables from provisional copper sales 22.8 — 22.8 — 15.3 — 15.3 — Investments - listed 47.9 47.9 — — 93.0 93.0 — — Investments - unlisted — — — — 0.1 — — 0.1 Asanko redeemable preference shares 95.5 — — 95.5 132.9 — — 132.9 Warrants 11.7 — 11.7 — 9.3 — 9.3 — Oil derivative contracts 1.1 — 1.1 — 4.7 — 4.7 — Copper derivative contracts — — — — 1.2 — 1.2 — Gold derivative contracts — — — — 2.4 — 2.4 — Financial assets not measured at fair value Environmental trust funds 62.3 — 62.3 — 54.3 — 54.3 — Financial liabilities measured at fair value Foreign exchange derivative contracts 0.3 — 0.3 — 8.7 — 8.7 — Gold derivative contracts 127.3 — 127.3 — 13.9 — 13.9 — Financial liabilities not measured at fair value Borrowings 1,952.4 1,700.4 — 252.0 1,897.0 839.6 — 1,057.4 1 Refer note 42. Environmental trust funds The environmental trust funds are measured at fair value through profit or or Trade receivables from provisional copper sales Valued using quoted market prices based on the forward London Metal Exchange (“LME”) and, as such, is classified within Level 2 of the fair value hierarchy. Listed investments Comprise equity investments in listed entities and are therefore valued using quoted market prices in active markets. Asanko redeemable preference shares The fair value is based on the expected cash flows of the Asanko Gold Mine based on the life-of-mine Warrants Warrants are measured at fair value through profit or loss. The fair value is determined using a standard European call option format based on a standard option theory model. Oil, gold and foreign exchange derivative contracts The fair values of these contracts are determined by using the applicable valuation models for each instrument type with the key inputs being forward prices, interest rates and volatilties. Borrowings The 2020 notes, the 5-year 10-year

Risk Management Activities

Risk Management Activities	12 Months Ended
Risk Management Activities	Dec. 31, 2019
Text block [abstract]
Risk Management Activities	38. RISK MANAGEMENT ACTIVITIES In the normal course of its operations, the Group is exposed to commodity price, currency, interest rate, liquidity, equity price and credit risk. In order to manage these risks, the Group has developed a comprehensive risk management process to facilitate control and monitoring of these risks. Controlling and managing risk in the Group Gold Fields has policies in areas such as counterparty exposure, hedging practices and prudential limits which have been approved by Gold Fields’ Board of Directors. Management of financial risk is centralised at Gold Fields’ treasury department (“Treasury”), which acts as the interface between Gold Fields’ operations and counterparty banks. Treasury manages financial risk in accordance with the policies and procedures established by the Gold Fields’ Board of Directors and Executive Committee. Gold Fields’ Board of Directors has approved dealing limits for money market, foreign exchange and commodity transactions, which Gold Fields’ Treasury is required to adhere to. Among other restrictions, these limits describe which instruments may be traded and demarcate open position limits for each category as well as indicating counterparty credit related limits. The dealing exposure and limits are checked and controlled each day and reported to the Chief Financial Officer. The objective of Treasury is to manage all financial risks arising from the Group’s business activities in order to protect profit and cash flows. Treasury activities of Gold Fields Limited and its subsidiaries are guided by the Treasury Framework and the Treasury Process Control Manual, as well as domestic and international financial market regulations. Treasury activities are currently performed within the Treasury Framework with appropriate resolutions from the Board of Gold Fields Limited, which are reviewed and approved annually by the Audit Committee. The financial risk management objectives of the Group are defined as follows: Risk management objectives Description Credit risk Counterparty exposure The objective is to only deal with approved counterparts that are of a sound financial standing and who have an official credit rating. The Group is limited to a maximum investment of 2.5% of the financial institutions’ equity, which is dependent on the institutions’ credit rating. The credit rating used is Fitch Ratings’ short-term credit rating for financial institutions. Investment risk management The objective is to achieve optimal returns on surplus funds. Liquidity risk Liquidity risk management The objective is to ensure that the Group is able to meet its short-term commitments through the effective and efficient usage of credit facilities and cash resources. Funding risk management The objective is to meet funding requirements timeously and at competitive rates by adopting reliable liquidity management procedures. Market risk Currency risk management The objective is to maximise the Group’s profits by minimising currency fluctuations. Interest rate risk management The objective is to identify opportunities to prudently manage interest rate exposures. Commodity price risk management Commodity price risk management takes place within limits and with counterparts as approved in the Treasury Framework. Other risks Operational risk management The objective is to implement controls to adequately mitigate the risk of error and/or fraud. Banking relations management The objective is to maintain relationships with credible financial institutions and ensure that all contracts and agreements related to risk management activities are co-ordinated Credit risk Credit risk is the risk of financial loss to the Group if a customer or counterparty to a financial instrument fails to meet its contractual obligations, and arises principally from the Group’s receivables from customers, cash and cash equivalents as well as environmental trust funds. The Group has reduced its credit exposure by dealing with a number of counterparties. The Group approves these counterparties according to its risk management policy and ensures that they are of good credit quality. The combined maximum credit risk exposure of the Group is as follows: United States Dollar Figures in millions unless otherwise stated 2019 2018 Restated 1 Environmental trust funds 69.5 60.8 Trade and other receivables 2 74.2 64.9 Cash and cash equivalents 515.0 219.7 1 Refer note 42. 2 Trade and other receivables above exclude VAT, import duties, prepayments, payroll receivables, derivative contracts and diesel rebates amounting to US$62.9 million (2018: US$73.7 million). Expected credit loss assessment for customers The Group determines each exposure to credit risk based on data that is determined to be predictive of the risk of loss and past experienced credit judgement. Trade and other receivables The Group’s exposure to credit risk is influenced mainly by the individual characteristics of each customer. The Group also considers other factors that might impact on the credit risk of its customer base including default risk and the country in which the customer operates. Impairment of trade receivables, carried at amortised cost, has been determinined using the simplified expected credit loss (“ECL”) approach and reflects the short term maturities of the exposures. Gold revenue is recognised at the same time as receipt of the cash, except in Ghana where the cash is received one day after revenue recognition. In Peru, for the sale of copper concentrate, 90% of the cash is received when the revenue is recognised and the remaining 10% cash is received at the end of the quotational period. Receivables due from the sale of the Tarkwa mining fleet were assessed using the simplified ECL approach. The ECL was based on the Group’s understanding of the financial position of the counterparty, including the consideration of their credit risk grade. Concentration risk At 31 December 2019, the exposure to credit risk for trade receivables by geographic region was as follows: 2019 2018 Restated 1 South Africa — — Ghana 0.8 — Australia — — Peru 22.8 15.3 Total trade receivables 23.6 15.3 1 Refer note 42. Cash and cash equivalents The Group held cash and cash equivalents of US$515.0 million (2018: US$219.7 million). The cash and cash equivalents are held with banks and financial institutions which are rated BBB- Environmental trust funds The Group held environmental trust funds of US$69.5 million (2018: US$60.8 million). The environmental trust funds are held with banks and financial institutions which are rated BBB- Concentration of credit risk on cash and cash equivalents and environmental trust funds is considered minimal due to the Group’s investment risk management and counterparty exposure risk management policies. Liquidity risk In the ordinary course of business, the Group receives cash proceeds from its operations and is required to fund working capital and capital expenditure requirements. The cash is managed to ensure surplus funds are invested to maximise returns whilst ensuring that capital is safeguarded to the maximum extent possible by investing only with top financial institutions. Uncommitted borrowing facilities are maintained with several banking counterparties to meet the Group’s normal and contingency funding requirements. The following are the contractually due undiscounted cash flows resulting from maturities of all financial liabilities, including interest payments: United States Dollar Figures in millions unless otherwise stated Within one Between one After five Total 2019 Trade and other payables 385.3 — — 385.3 Gold and foreign exchange derivative contracts 127.6 — — 127.6 Borrowings 1 - US$ borrowings 2 - Capital 3 685.9 500.0 500.0 1,685.9 - Interest 81.0 209.1 134.0 424.1 - A$ borrowings 4 - Capital — 168.5 — 168.5 - Interest 5.5 2.2 — 7.7 Environmental rehabilitation costs 6 11.9 28.4 396.0 436.3 Finance lease liabilities 63.9 178.2 205.3 447.4 South Deep dividend 1.4 3.8 3.3 8.5 Total 1,362.5 1,090.2 1,238.6 3,691.3 2018 Restated 7 Trade and other payables 307.6 — — 307.6 Gold, copper and foreign exchange derivative contracts 22.6 — — 22.6 Borrowings 1 - US$ borrowings 2 - Capital 3 — 1,452.9 — 1,452.9 - Interest 69.3 53.2 — 122.5 - A$ borrowings 4 - Capital — 316.5 — 316.5 - Interest 13.8 19.4 — 33.2 - Rand borrowings 5 - Capital 92.5 47.9 — 140.4 - Interest 12.1 1.2 — 13.3 Environmental rehabilitation costs 6 13.0 33.7 353.2 399.9 Finance lease liabilities 11.6 41.5 58.4 111.5 South Deep dividend 1.4 4.1 4.1 9.6 Total 543.9 1,970.4 415.7 2,930.0 1 Spot Rate: R14.00 = US$1.00 (2018: R14.63 = US$1.00). 2 USD borrowings - Spot LIBOR (one month fix) rate adjusted by specific facility agreement: 1.7625% (2018: 2.50625% (one month fix)). 3 The capital amounts of the US$1 billion notes issue, US$500 million 5-year 10-year 4 AUD borrowings - Spot Bank Bill Swap Bid Rate (BBSY) (one month fix) rate adjusted by specific facility agreement: 0.92% (2018: 2.02%). 5 ZAR borrowings - Spot JIBAR (one month fix) rate adjusted by specific facility agreement for 2018: 6.942% and bank overnight borrowing rate on uncommitted credit facilities for 2018: 8.1%. 6 Although environmental rehabilitation costs do not meet the definition of a financial liability, the Group included the gross closure cost estimate in the undiscounted cash flows as it represents a future cash outflow (refer note 25.1). In South Africa and Ghana, US$69.5 million (2018: US$60.8 million) of the environmental rehabilitation costs is funded through the environmental trust funds. 7 Refer note 42. Market risk Gold Fields is exposed to market risks, including foreign currency, commodity price, equity securities price and interest rate risk associated with underlying assets, liabilities and anticipated transactions. Following periodic evaluation of these exposures, Gold Fields may enter into derivative financial instruments to manage some of these exposures. The following table summarises the (loss)/gain on financial instruments recognised in profit or loss for the derivative financial instruments entered into by Gold Fields: UNITED STATES DOLLAR Figures in millions unless otherwise stated 2019 2018 2017 South Deep gold hedge (25.8 ) (3.2 ) 10.9 Ghana gold hedge (37.7 ) 22.0 — Ghana oil hedge 2.5 1.5 8.8 Peru copper hedge — 9.2 (5.7 ) Australia gold hedge (178.8 ) (4.6 ) 15.3 Australia oil hedge 2.3 1.4 5.1 Australia foreign currency hedge (7.2 ) (9.1 ) — Maverix warrants – gain on fair value 4.2 3.8 — Gain on fair value on disposal of Maverix 2.5 — — (238.0 ) 21.0 34.4 Foreign currency sensitivity General and policy In the ordinary course of business, Gold Fields enters into transactions, such as gold sales, denominated in foreign currencies, primarily US dollars. In addition, Gold Fields has investments and indebtedness in US dollars, South African rands and Australian dollars. Gold Fields may from time to time establish currency financial instruments to protect underlying cash flows. Gold Fields’ revenues and costs are very sensitive to the Australian dollar/US dollar and South African rand/US dollar exchange rates because revenues are generated using a gold price denominated in US dollars, while costs of the Australian and South African operations are incurred principally in Australian dollar and South African rand, respectively. Depreciation of the Australian dollar and/or South African rand against the US dollar reduces Gold Fields’ average costs when they are translated into US dollars, thereby increasing the operating margin of the Australian and/or South African operations. Conversely, appreciation of the Australian and/or South African rand results in Australian and/or South African operating costs increasing when translated into US dollars, resulting in lower operating margins. The impact on profitability of changes in the value of the Australian dollar and South African rand against the US dollar could be substantial. Although this exposes Gold Fields to transaction and translation exposure from fluctuations in foreign currency exchange rates, Gold Fields does not generally hedge its foreign currency exposure, although it may do so in specific circumstances, such as financing projects or acquisitions. Also, Gold Fields on occasion undertakes currency hedging to take advantage of favourable short-term fluctuations in exchange rates when management believes exchange rates are at unsustainable levels. Currency risk only exists on account of financial instruments being denominated in a currency that is not the functional currency and being of a monetary nature. The Group had no significant exposure to currency risk relating to financial instruments at 31 December 2019. Differences resulting from the translation of financial statements into the Group’s presentation currency are not taken into account. Foreign currency hedging experience Australia In May 2018, the Australian operations entered into Australian dollar/US dollar average rate forwards for a total notional US$96.0 million for the period January 2019 to December 2019 at an average strike price of 0.7517. In June 2018, further hedges were taken out for a total notional US$60.0 million for the same period January 2019 to December 2019 at an average strike of 0.7330. In September 2018, further hedges were taken out for a total notional US$100 million for the same period January 2019 to December 2019 at an average strike of 0.7182. In October 2018, further hedges were taken out for the period January 2019 to December 2019 for a notional US$60 million at an average strike of 0.7075. In December 2018, further hedges were taken out for the period January 2019 to December 2019 for a notional US$50 million at an average strike of 0.715. At 31 December 2019, the mark-to-market Commodity price hedging policy Gold and copper The market prices of gold and to a lesser extent copper have a significant effect on the results of operations of Gold Fields, the ability of Gold Fields to pay dividends and undertake capital expenditures, and the market price of Gold Fields’ ordinary shares. Gold and copper prices have historically fluctuated widely and are affected by numerous industry factors over which Gold Fields does not have any control. The aggregate effect of these factors on the gold and copper price, all of which are beyond the control of Gold Fields, is impossible for Gold Fields to predict. Oil The market price of oil has a significant effect on the results of the offshore operations of Gold Fields. The offshore operations consume large quantities of diesel in the running of their mining fleets. Oil prices have historically fluctuated widely and are affected by numerous factors over which Gold Fields does not have any control. Commodity price hedging experience The Group’s policy is to remain unhedged to the gold and copper price. However, hedges are sometimes undertaken as follows: • to protect cash flows at times of significant expenditure; • for specific debt servicing requirements; and • to safeguard the viability of higher cost operations. To the extent that it enters into commodity hedging arrangements, Gold Fields seeks to use different counterparty banks consisting of local and international banks to spread risk. None of the counterparties is affiliated with, or related parties of, Gold Fields. Gold and copper Australia In February 2018, the Australian opererations entered into Asian swaps (Asian swaps are options where the payoff is determined by the average monthly gold price over the option period) In March 2018, the Australian operations entered into zero cost collars for the period April 2018 to December 2018 for a total of 452,800 ounces of gold. The average strike prices are A$1,703 per ounce on the floor and US$1,767 per ounce on the cap. In December 2018, additional Asian swaps were entered into for the period January 2019 to December 2019 for a notional 283,000 ounces of gold at an average strike price of A$1,751 per ounce. In December 2018, additional zero cost collars were executed for the period January 2019 to December 2019 for a notional 173,000 ounces of gold with a strike price on the floor at A$1,720 per ounce and the strike price on the cap at A$1,789 per ounce. In January 2019, zero cost collars were executed for the period January 2019 to December 2019 for a notional 456,000 ounces of gold with a strike price on the floor at A$1,800 per ounce and the strike price on the cap at A$1,869 per ounce. In June 2019, a total of 480,000 ounces of the expected production for 2020 for the Australian region was hedged for the period January 2020 to December 2020 using cash settled zero cost collars (270,000 ounces) and average rate forwards (210,000 ounces). The average strike prices are A$1,933 per ounce on the floor and A$2,014 on the cap. The average strike price on the forwards is A$1,957 per ounce. At 31 December 2019, the mark-to-market Peru In November 2017, zero-cost At 31 December 2019 the mark-to-market South Africa Between October 2018 and January 2019, South Deep entered into cash settled average rate forwards for a total of 112,613 ounces for the period June 2019 to December 2019 at an average strike rate of R617,000 per kilogram. In June 2019, a total of 200,000 ounces of the expected production for 2020 for South Deep was hedged for the period January 2020 to December 2020 using cash settled zero cost collars (100,000 ounces) and average rate forwards (100,000 ounces). The average strike price is R660,000 per kilogram on the floor and R727,000 per kilogram on the cap. The average strike price is R681,400 per kilogram on the forwards. At 31 December 2019, the mark-to-market Ghana In January 2018 and April 2018, a total of 488,900 ounces of the expected production for the Ghanaian region was hedged for the period January 2018 to December 2018 using zero-cost In June 2019, a total of 275,000 ounces of the expected production for 2020 for the Ghanaian region was hedged for the period January 2020 to December 2020 using cash settled zero-cost Subsequent to 30 June 2019, 100,000 ounces of the expected production for the Ghanaian region was hedged for the period January 2020 to December 2020 using cash settled zero cost collars. The average strike prices are US$1,400 per ounce on the floor and US$1,557 per ounce on the cap. At 31 December 2019, the mark-to Oil Australia In May 2017 and June 2017, the Australian operations entered into fixed price Singapore 10ppm Gasoil cash settled swap transactions for a total of 77.5 million litres of diesel for the period June 2017 to December 2019. The average swap price is US$61.2 per barrel. At the time of the transactions, the average Brent swap equivalent over the tenor was US$49.9 per barrel. In June 2019 fixed price Singapore 10ppm Gasoil cash settled swap transactions were entered into for a total of 75.0 million litres of diesel for the period January 2020 to December 2022 based on 50 per cent of usage over the specified period. The average swap price is US$74.0 per barrel. At the time of the transactions, the average Brent swap equivalent over the tenor was US$57.4 per barrel. At 31 December 2019, the mark-to-market Ghana In May 2017 and June 2017, the Ghanaian operations entered into fixed price ICE Gasoil cash settled swap transactions for a total of 125.8 million litres of diesel for the period June 2017 to December 2019. The average swap price is US$457.2 per metric tonne (equivalent US$61.4 per barrel). At the time of the transactions, the average Brent swap equivalent over the tenor was US$49.8 per barrel. In June 2019 fixed price ICE Gasoil cash settled swap transactions were entered into for a total of 123.2 million litres of diesel for the period January 2020 to December 2022 based on 50 per cent of usage over the specified period. The average swap price is US$575 per metric tonne (equivalent to US$75.8 per barrel). At the time of the transactions, the average Brent swap equivalent over the tenor was US$59.2 per barrel. At 31 December 2019, the mark-to-market The gains and losses on the above hedges were recognised in profit or loss and are included in the gain on financial instruments line item. The Group has not designated the instruments for hedge accounting. IFRS 7 sensitivity analysis IFRS 7 requires sensitivity analysis that shows the effects of reasonably possible changes of relevant risk variables on profit or loss or shareholders’ equity. The Group is exposed to commodity price, currency, interest rate and equity price risks. The effects are determined by relating the reasonably possible change in the risk variable to the balance of financial instruments at reporting date. The amounts generated from the sensitivity analysis below are forward-looking estimates of market risks assuming certain adverse or favourable market conditions occur. Actual results in the future may differ materially from those projected results and therefore should not be considered a projection of likely future events and gains/losses. Commodity price hedging sensitivity The tables below summarise the effect of a change in the loss on financial instruments on the Group’s profit or loss in case of changes in the key inputs used to value the gold derivative contracts included in trade and other payables. The first analysis is based on the assumption that the gold forward prices have increased/decreased with all other variables held constant. The second analysis is based on the assumption that the interest rates increased/decreased with all other variables held constant. United States Dollar Sensitivity to gold forward prices (Decrease)/increase in gold forward prices Figures in millions unless otherwise stated (US$150) (US$100) (US$50) US$50 US$100 US$150 2019 (Increase)/decrease in loss on financial instruments 120.8 85.7 45.4 (48.7 ) (99.4 ) (151.1 ) United States Dollar Sensitivity to interest rates (Decrease)/increase in interest rates Figures in millions unless otherwise stated (1.5%) (1.0%) (0.5%) 0.5% 1.0% 1.5% 2019 (Increase)/decrease in loss on financial instruments 5.9 4.0 2.0 (2.1 ) (4.2 ) (6.3 ) Equity securities price risk The Group is exposed to equity securities price risk because of investments held by the Group which are designated at fair value through OCI. To manage its price risk arising from investments in equity securities, the Group diversifies its portfolio. Diversification of the portfolio is done in accordance with limits set by the Group. The Group’s equity investments are publicly traded and are listed on one of the following exchanges: • JSE Limited • Toronto Stock Exchange • Australian Stock Exchange • London Stock Exchange The table below summarises the impact of increases/decreases of the exchanges on the Group’s shareholders’ equity in case of shares. The analysis is based on the assumption that the share prices quoted on the exchange have increased/decreased with all other variables held constant and the Group’s investments moved according to the historical correlation with the index. United States Dollar Senstivity to equity security price (Decrease)/increase in equity price Figures in millions unless otherwise stated (10.0%) (5.0%) 5.0% 10.0% 2019 (Decrease)/increase in OCI 1 (4.8 ) (2.4 ) 2.4 4.8 2018 (Decrease)/increase in OCI 1 (9.3 ) (4.7 ) 4.7 9.3 1 Spot rate: R14.00 = US$1.00 (2018: R14.63 = US$1.00) Preference shares price risk The Group is exposed to preference shares price risk because of the Asanko preference shares which are designated at fair value through OCI.The fair value of the redeemable preference shares is based on the expected cash flows of the Asanko Gold Mine based on the life-of-mine The tables below summarise the impact of increases/decreases on the Group’s shareholders’ equity in case of changes in the key inputs used to value the preference shares. The first analysis is based on the assumption that the market related discount rate have increased/decreased with all other variables held constant. The second analysis is based on the assumption that the timing of the cash flows used in the life-of-mine United States Dollar Sensitivity to preference share price risk (Decrease)/increase in discount rate Figures in millions unless otherwise stated (1.0%) (2.0%) 2.0% 1.0% 2019 Increase/(decrease) in OCI 3.7 7.6 (6.7 ) (3.4 ) 2018 Increase/(decrease) in OCI 3.4 6.8 (6.8 ) (3.4 ) Sensitivity to preference share price risk (Decrease)/increase in timing of cash flows Figures in millions unless otherwise stated 1 year earlier 1 year later 2019 Increase/(decrease) in OCI 4.9 (7.5 ) 2018 Increase/(decrease) in OCI 11.1 (10.1 ) Interest rate sensitivity Restated 1 General As Gold Fields has no significant interest bearing assets, the Group’s income and operating cash flows are substantially independent of changes in market interest rates. Gold Fields’ interest rate risk arises from borrowings. As of 31 December 2019, Gold Fields’ borrowings amounted to US$1,845.8 million (2018: US$1,906.8 million). Gold Fields generally does not undertake any specific action to cover its exposure to interest rate risk, although it may do so in specific circumstances. Interest rate sensitivity analysis The portion of Gold Fields interest bearing borrowings at year-end US$83.5 million (2018: US$600.5 million) of the total borrowings at reporting date is exposed to changes in the LIBOR rate, US$nil (2018: US$47.9) is exposed to the JIBAR rate, US$nil (2018: US$92.5 million) is exposed to the South African Prime (“Prime”) interest rate and US$168.5 million (2018: US$316.5 million) is exposed to the BBSY rate. The relevant interest rates for each facility are described in note 24. The table below summarises the effect of a change in finance expense on the Group’s profit or loss had LIBOR, JIBAR, Prime and BBSY differed as indicated. The analysis is based on the assumption that the applicable interest rate increased/decreased with all other variables held constant and is calculated on the weighted average borrowings for the year. All financial instruments with fixed interest rates that are carried at amortised cost are not subject to the interest rate sensitivity analysis. United States Dollar Sensitivity to interest rates Change in interest expense for a nominal change in interest rates Figures in millions unless otherwise stated (1.5%) (1.0%) (0.5%) 0.5% 1.0% 1.5% 2019 Sensitivity to LIBOR interest rates (5.1 ) (3.4 ) (1.7 ) 1.7 3.4 5.1 Sensitivity to BBSY interest rates 2 (0.7 ) (0.4 ) (0.2 ) 0.2 0.4 0.7 Sensitivity to JIBAR and prime interest rates 3 (0.8 ) (0.5 ) (0.3 ) 0.3 0.5 0.8 Change in finance expense (6.6 ) (4.3 ) (2.2 ) 2.2 4.3 6.6 2018 Restated 1 Sensitivity to LIBOR interest rates (9.8 ) (6.5 ) (3.3 ) 3.3 6.5 9.8 Sensitivity to BBSY interest rates 2 (4.9 ) (3.3 ) (1.6 ) 1.6 3.3 4.9 Sensitivity to JIBAR and prime interest rates 3 (1.2 ) (0.8 ) (0.4 ) 0.4 0.8 1.2 Change in finance expense (15.9 ) (10.6 ) (5.3 ) 5.3 10.6 15.9 1 Refer note 42. 2 Average rate: A$0.70 = US$1.00 (2018: A$0.75 = US$1.00) 3 Average rate: R14.46 = US$1.00 (2018: R13.2 = US$1.00)

Capital Management

Capital Management	12 Months Ended
Capital Management	Dec. 31, 2019
Text block [abstract]
Capital Management	39. CAPITAL MANAGEMENT The primary objective of managing the Group’s capital is to ensure that there is sufficient capital available to support the funding requirements of the Group, including capital expenditure, in a way that: • optimises the cost of capital • maximises shareholders’ returns, and • ensures that the group remains in a sound financial position. There were no changes to the Group’s overall capital management approach during the current year. The Group manages and makes adjustments to the capital structure as and when borrowings mature or as and when funding is required. This may take the form of raising equity, market or bank debt or hybrids thereof. Opportunities in the market are also monitored closely to ensure that the most efficient funding solutions are implemented. The Group monitors capital using the ratio of net debt to adjusted EBITDA and takes into account the adoption of IFRS 16. Adjusted EBITDA is defined as profit or loss for the year adjusted for interest, taxation, amortisation and depreciation and certain other costs. For external borrowings entered into before 1 January 2019, the definition of adjusted EBITDA is as defined in the US$1,290 million term loan and revolving credit facilities agreement. For external borrowings entered into after 1 January 2019, the definition of adjusted EBITDA is as defined in the US$1,200 million term loan and revolving credit facilities agreement. Net debt (pre-IFRS 2019 2018 Restated 1 Notes US$ million US$ million Borrowings 24 1,845.8 1,906.8 Less: Cash and cash equivalents 21 515.0 219.7 Net debt (pre-IFRS 1,330.8 1,687.1 Add: Lease liability - IFRS 16 332.9 Net debt (post-IFRS 16) 1,663.7 Adjusted EBITDA (pre-IFRS 1,233.3 1,111.6 Add: Lease payments 56.9 Adjusted EBITDA (post-IFRS 16) 1,290.2 Net debt to adjusted EBITDA (pre-IFRS 1.08 1.52 Net debt to adjusted EBITDA (post-IFRS 16) 1.29 Reconciliation of profit/(loss) for the year to adjusted EBITDA: Profit/(loss) for the year 174.7 (344.8 ) Mining and income taxation 175.6 (65.9 ) Royalties 73.7 62.5 Finance expense 102.2 88.0 Investment income (7.3 ) (7.8 ) Loss/(gain) on financial instruments 238.0 (21.0 ) Foreign exchange loss/(gain) 5.2 (6.4 ) Amortisation and depreciation 2 610.0 668.4 Share-based payments 20.5 37.5 Long-term incentive plan 9.1 1.1 Restructuring costs 0.6 113.9 Silicosis settlement costs (1.6 ) (4.5 ) Impairment, net of reversal of impairment of investments and assets 9.8 520.3 (Profit)/loss on disposal of assets (1.2 ) 51.6 Share of results of equity accounted investees, net of taxation (3.1 ) 13.1 Rehabilitation expense/(income) 7 13.4 (0.9 ) Realised (loss)/gain on derivative contracts (132.1 ) 53.8 Gain on acquisition of Asanko 15 — (51.8 ) Lease repayments (56.9 ) — Other 2.7 4.5 1,233.3 1,111.6 1 Refer note 42.

Related Parties

Related Parties	12 Months Ended
Related Parties	Dec. 31, 2019
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Related Parties	40. RELATED PARTIES (a) Subsidiaries, associates and joint ventures The subsidiaries, associates and joint ventures of the Company are disclosed in note 43. All transactions and balances with these related parties have been eliminated in accordance with and to the extent required by IFRS 10 Consolidated Financial Statements Joint Arrangements Investments in Associates and Joint Ventures. (b) Key management remuneration Key management personnel include executive directors and prescribed officers (“Executive Committee”). The total key management remuneration amounted to US$21.3 million (2018: US$17.0 million) for 2019. The details of key mangement personnel, including remuneration and participation in the Gold Fields Limited share scheme and LTIP are disclosed in note 40 (c). (c) Directors’ and prescribed officers’ remuneration None of the directors and officers of Gold Fields or, to the knowledge of Gold Fields, their families, had any interest, direct or indirect, in any transaction during the last three fiscal periods or in any proposed transaction which has affected or will materially affect Gold Fields or its investment interests or subsidiaries, other than as stated below. None of the directors or officers of Gold Fields or any associate of such director or officer is currently or has been at any time during the past three fiscal periods indebted to Gold Fields. At 31 December 2019, the Executive Committee and non-executive Non-executive NEDs’ fees reflect their services as directors and services on various sub-committees NEDs do not participate in any of the short- or long-term incentive plans and there are no arrangements in place for compensation to be awarded in the case of loss of office. The Remuneration Committee seeks to align NEDs fees to the median of an appropriate peer group and reviews fee structures for NEDs on an annual basis. Approval is sought from shareholders after recommendation by the Board at the Annual General Meeting. The following table summarises the remuneration for NEDs for the years ended 31 December 2019 and 2018: Board fees Directors Fees Committee Fees Total C Carolus 215.8 — 215.8 R Menell 140.5 — 140.5 Y Suleman 70.8 65.7 138.5 P Bacchus 79.3 72.9 152.2 S Reid 3 79.3 62.9 142.2 T Goodlace 70.8 35.8 106.6 A Andani 4 79.3 46.0 125.3 C Letton 79.3 51.6 130.9 P Mahanyele-Dabengwa 2 70.8 30.0 100.8 Total - 2019 885.9 364.9 1,250.8 C Carolus 231.3 — 231.3 R Menell 150.5 — 150.5 D Ncube 1 30.7 21.3 52.0 Y Suleman 75.9 72.4 148.3 P Bacchus 80.6 61.1 141.7 S Reid 80.6 55.4 136.0 T Goodlace 75.9 38.4 114.3 A Andani 80.6 40.2 120.8 C Letton 80.6 49.8 130.4 P Mahanyele-Dabengwa 2 25.9 2.7 28.6 Total - 2018 912.6 341.3 1,253.9 1 Retired from the Board at end May 2018 2 Appointed to the Board in September 2018. 3 Steven Reid is a director of Gold Fields Netherlands Services BV and Gold Fields Orogen Holdings (BVI) Limited. He received US$14,351 (2018: US$nil) from 1 August 2019 for duties performed on behalf of these entities. 4 Alhassan Andani is a director of GF Ghana Limited and Abosso Goldfields Limited. He received US$70,021 (2018: US$141,605) for duties performed on behalf of these entities. Executive Committee The following table summarises the remuneration for executive directors and prescribed officers for the years ended 31 December 2019 and 2018: (Details of the remuneration are further described in the Remuneration Report) Salary 1 Pension Cash 2 Other 3 Share-based 4 LTIP 4 Total Executive directors N Holland 1,226.8 24.2 913.4 0.1 1,936.5 — 4,101.0 P Schmidt 608.3 1,331.7 — 2,487.4 1,835.1 3,268.2 — 6,588.4 Prescribed officers L Rivera 5 553.5 58.5 142.6 241.8 780.9 — 1,777.3 A Baku 6 839.7 193.1 533.3 103.8 1,573.1 — 3,243.0 R Butcher 363.4 36.3 218.0 — 501.1 — 1,118.8 N Chohan 352.8 24.2 242.0 1.6 649.7 — 1,270.3 B Mattison 7 441.4 24.2 298.6 — 969.8 — 1,734.0 T Harmse 354.3 25.1 243.5 5.4 680.5 — 1,308.8 A Nagaser 234.2 24.6 160.1 1.9 405.2 — 826.0 S Mathews 8 472.1 54.5 311.6 7.3 697.0 — 1,542.5 M Preece 514.3 25.1 271.8 — 362.7 — 1,173.9 R Bardien 9 285.0 24.2 116.9 — 268.4 — 694.5 4,410.7 489.8 2,538.4 361.8 6,888.4 — 14,689.1 Total - 2019 6,245.8 560.1 3,951.2 363.8 10,156.6 — 21,277.5 Executive directors N Holland 1,251.6 26.5 661.5 — 1,654.8 25.5 3,619.9 P Schmidt 626.6 48.2 306.2 2.1 876.2 25.3 1,884.5 1,878.2 74.7 967.7 2.1 2,531.0 50.8 5,504.4 Prescribed officers L Rivera 5 668.8 72.8 132.9 386.8 202.6 — 1,463.9 A Baku 6 808.0 185.8 634.8 68.0 990.4 25.5 2,712.5 R Butcher 384.5 37.3 192.4 — 238.5 — 852.7 N Chohan 367.2 26.5 213.9 1.8 341.1 6.9 957.5 B Mattison 7 453.6 26.5 271.9 2.5 545.1 16.4 1,316.0 T Harmse 369.7 26.5 215.3 7.8 433.5 13.9 1,066.6 A Nagaser 243.3 27.0 131.1 0.4 185.8 5.0 592.7 S Mathews 8 438.2 29.5 289.4 4.9 399.2 10.9 1,172.2 M Preece 541.7 26.5 168.8 0.4 113.0 — 850.4 R Bardien 9 274.3 24.3 150.5 106.1 — — 555.2 4,549.3 482.6 2,401.0 578.7 3,449.2 78.6 11,539.6 Total - 2018 6,427.5 557.3 3,368.7 580.8 5,980.2 129.4 17,044.0 1 The total US$ amounts paid for 2019, and included in salary were as follows : NJ Holland US$0 (2018: US$406,700), P Schmidt US$0 (2018: US$124,150) and B Mattison US$0 (2017: US$88,217). 2 The annual bonuses for the year ended 31 December 2018 and 31 December 2019 were paid in February 2019 and February 2020, respectively. 3 Other payments include special bonuses and incidental payments unless otherwise stated. 4 The share-based payment and LTIP expenses are calculated in terms of IFRS and are not the cash amounts paid. For details of the cash amounts paid, refer the remuneration report. 5 Other payments for 2018 relate to cash in lieu of 2016 share award paybale upon vesting in March 2019. 6 Other payments for 2018 relate to a profit share bonus payment. 7 Other payments for 2018 relate to a service award. 8 Other payments for 2018 relate to a bonus payment in lieu of most improved operation bonus scheme. 9 Appointed on 1 February 2018. Other payments for 2018 relate to a sign-on-bonus.

Changes in Significant Accounti

Changes in Significant Accounting Policies	12 Months Ended
Changes in Significant Accounting Policies	Dec. 31, 2019
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Changes in Significant Accounting Policies	41 . CHANGES IN SIGNIFICANT ACCOUNTING POLICIES The Group applied IFRS 16 Leases IFRS 16 - Leases Previously, the Group determined at contract inception whether an arrangement was or contained a lease under IFRIC 4 Determining whether an Arrangement contains a Lease The Group applied IFRS 16 using the modified retrospective approach. Accordingly, the comparative information presented for 2018 is not restated – i.e. it is presented, as previously reported, under IAS 17 and related interpretations. The details of the changes in accounting policies are disclosed below. Additionally, the disclosure requirements in IFRS 16 have not generally been applied to comparative information. On transition to IFRS 16, the Group elected to recognise the right-of-use • Relying on previous assessments on whether leases are onerous as an alternative to performing an impairment review. There were no onerous contracts as at 1 January 2019; and • Accounting for operating leases with a remaining lease term of less than 12 months as at 1 January 2019 as short-term leases. The Group has elected not to apply the practical expedient to grandfather the assessment of which transactions are leases and applied IFRS 16 to all contracts. Leases classified as operating leases under IAS 17 Previously, the Group classified the following leases as operating leases under IAS 17: Australia • Power Purchase Agreements (PPAs); • Rental of gas pipelines; • Ore haulage and site services; • Mining equipment hire; and • Property rentals. Ghana • Power Purchase Agreements (PPAs); and • Transportation contracts. South Africa • Equipment hire. Peru • Property rentals; and • Equipment hire. Corporate and other • Property rentals; and • Equipment hire. On transition, for these leases, lease liabilities were measured at the present value of the remaining lease payments, discounted using the Group’s incremental borrowing rate as at 1 January 2019. Right-of-use Leases classified as finance leases under IAS 17 Previously, the Group classified the PPA at Gruyere as a finance lease under IAS 17 (refer note 33 for further details). For this finance lease, the carrying amount of the right-of-use Impact on transition On transition to IFRS 16, the Group recognised additional right-of-use When measuring lease liabilities for leases that were classified as operating leases, the Group discounted lease payments using the followings discount rates at 1 January 2019: Discount rate Australia 3.46% - 6.39 % Ghana 6.83% - 7.68 % South Africa 9.84 % Peru 4.50% - 4.76 % Corporate and other 4.0% - 10.25 % Reconciliation of operating lease commitments at 31 December 2018 to the lease liabilities recognised at 1 January 2019: US$ Operating lease commitments at 31 December 2018 as disclosed under IAS 17 1 657.4 Reconciled as follows: Discounting (91.0 ) Non-lease (356.8 ) Lease liability recognised at 1 January 2019 209.6 1 The operating lease commitments in 2018 consisted mainly of power purchase agreements entered into at Tarkwa, Damang, Granny Smith and Gruyere. Included in these amounts were payments for non-lease IFRS 15 Revenue from contracts with customers The Group applied IFRS 15 from 1 January 2018 The Group adopted IFRS 15 using the cumulative effect method (without practical expedients), with the effect of initially applying this standard recognised at the date of initial application (i.e. 1 January 2018). Accordingly, the information presented for 2017 has not been restated – i.e. it is presented, as previously reported, under IAS 18 and related interpretation s IFRS 9 Financial instruments The Group applied IFRS 9 from 1 January 2018 The Group has used an exemption not to restate comparative information for prior periods with respect to classification and measurement requirements. Differences in the carrying amounts of financial assets and financial liabilities resulting from the adoption of IFRS 9 were immaterial and therefore no adjustments were required to be recognised in retained earnings and reserves as at 1 January 2018.

Correction Of Error Relating To

Correction Of Error Relating To Year-End Cut-Off	12 Months Ended
Correction Of Error Relating To Year-End Cut-Off	Dec. 31, 2019
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Correction Of Error Relating To Year-End Cut-Off	42. CORRECTION OF ERROR RELATING TO YEAR-END CUT-OFF During the Group’s most recent financial year, management identified that transactions between cost close (the date the general ledger was closed for reporting purposes) and calendar year-end had not been recorded. This resulted in restatement s (a) Consolidated statement of financial position 31 December 2018 1 January 2018 As Adjustments As As Adjustments As Cash and cash equivalents 399.7 (180.0 ) 219.7 479.0 (85.2 ) 393.8 Trade and other receivables 153.2 (14.6 ) 138.6 201.9 (30.1 ) 171.8 Other 5,551.4 — 5,551.4 5,939.2 — 5939.2 Total assets 6,104.3 (194.6 ) 5,909.7 6,260.1 (115.3 ) 6,504.8 Borrowings 1,925.3 (111.0 ) 1,814.3 1,587.9 — 1,587.9 Current portion of borrowings 86.3 6.2 92.5 193.6 0.9 194.5 Trade and other payables 503.0 (85.5 ) 417.5 548.5 (85.4 ) 463.1 Taxation payable 5.2 (4.3 ) 0.9 77.5 (30.8 ) 46.7 Other 877.6 — 877.6 809.6 — 809.6 Total liabilities 3,397.4 (19.46 ) 3,202.8 3,217.1 (115.3 ) 3,101.8 Total equity 2,706.9 — 2,706.9 3,403.0 — 3,403.0 Net debt 1,611.9 75.2 1,687.1 1,302.5 86.1 1,388.6 Adjusted EBITDA 1,111.6 — 1,111.6 1,263.7 — 1,263.7 Net debt to adjusted EBITDA 1.45 1.52 1.03 1.10 (b) Consolidated statement of cash flows 31 December 2018 1 January 2018 As Adjustments As As Adjustments As Change in working capital (16.3 ) (15.6 ) (31.9 ) (69.4 ) (20.5 ) (89.9 ) Taxation paid (217.2 ) 26.5 (190.7 ) (239.5 ) (8.9 ) (249.4 ) Other 791.3 — 791.3 1,071.3 — 1,071.3 Cash flows from operating activities 557.8 10.9 568.7 762.4 (30.4 ) 732.0 Cash flows from investing activities (886.8 ) — (886.8 ) (908.6 ) — (908.6 ) Loans raised 691.7 (1.7 ) 690.0 779.7 7.9 787.6 Loans repaid (431.9 ) (104.0 ) (535.9 ) (695.5 ) (7.0 ) (702.5 ) Other (2.5 ) — (2.5 ) — — — Cash flows from financing activities 257.3 (105.7 ) 151.6 84.2 0.9 85.1 Net cash utilised (71.7 ) (94.8 ) (166.5 ) (62.0 ) (29.5 ) (91.5 ) Effect of exchange rate fluctuation on cash held (7.6 ) — (7.6 ) 14.3 — 14.3 Cash and cash equivalents at beginning of the year 479.0 (85.2 ) 393.8 526.7 (55.7 ) 471.0 Cash and cash equivalents at end of the year 399.7 (180.0 ) 219.7 479.0 (85.2 ) 393.8

Segment report

Segment report	12 Months Ended
Segment report	Dec. 31, 2019
Text block [abstract]
Segment report	4 3 Segment report Financial summary - US$ million South Ghana Peru Australia South 1 Tarkwa Damang Asanko 2 Total Cerro St Ives Agnew Granny Smith Gruyere Total Australia Corporate and 3 Group Group INCOME STATEMENT for the year ended 31 December 2019 Revenue 314.8 720.4 288.3 153.3 1,162.0 399.0 505.0 304.6 383.8 51.2 1,244.6 — 3,120.4 2,967.1 Cost of sales (275.1 ) (497.2 ) (195.5 ) (133.4 ) (826.1 ) (255.0 ) (333.8 ) (224.9 ) (212.7 ) (28.2 ) (799.7 ) (10.9 ) (2,166.9 ) (2,033.5 ) Cost of sales before gold invetory change and amortisation and depreciation (245.9 ) (329.8 ) (150.4 ) (88.7 ) (568.9 ) (168.4 ) (231.3 ) (164.6 ) (157.0 ) (19.1 ) (572.1 ) 0.1 (1,555.2 ) (1,466.5 ) Gold inventory change 3.7 14.4 8.8 (1.7 ) 21.5 6.0 2.5 2.6 (0.3 ) 5.4 10.2 0.0 41.3 43.0 Amortisation and depreciation (32.9 ) (181.8 ) (53.9 ) (43.0 ) (278.7 ) (92.6 ) (105.0 ) (62.9 ) (55.4 ) (14.5 ) (237.8 ) (11.0 ) (653.0 ) (610.0 ) Other costs (3.0 ) (12.8 ) (14.3 ) (8.0 ) (35.1 ) (4.7 ) (5.4 ) (0.4 ) (7.9 ) (0.4 ) (14.1 ) (20.8 ) (77.7 ) (69.7 ) Investment income 1.0 10.1 — — 10.1 — 0.4 0.3 0.3 — 1.0 (4.8 ) 7.3 7.3 Finance expense (6.6 ) (12.9 ) (14.3 ) — (27.2 ) (7.0 ) (2.7 ) (2.1 ) (2.7 ) (3.2 ) (10.7 ) (50.7 ) (102.2 ) (102.2 ) Loss on financial instruments (25.8 ) (23.8 ) (11.3 ) — (35.1 ) — (49.3 ) (28.7 ) (39.3 ) (8.5 ) (125.8 ) (51.3 ) (238.0 ) (238.0 ) Share-based payments 0.8 (3.4 ) (1.8 ) — (5.2 ) (1.1 ) (1.7 ) (1.2 ) (1.3 ) (0.3 ) (4.5 ) (10.5 ) (20.5 ) (20.5 ) Long-term incentive plan (1.0 ) (0.7 ) (0.3 ) — (1.0 ) (0.4 ) (0.5 ) (0.4 ) (0.4 ) (0.1 ) (1.4 ) (5.3 ) (9.1 ) (9.1 ) Exploration expense — — — — — (4.4 ) (10.0 ) (2.8 ) (17.0 ) (0.2 ) (30.0 ) (50.0 ) (84.4 ) (84.4 ) Profit on disposal of Maverix Metals Incorporated — — — — — — — — — — — 14.6 14.6 14.6 Restructuring costs (0.3 ) (0.3 ) — — (0.3 ) — — — — — — — (0.6 ) (0.6 ) Silicosis settlement costs — — — — — — — — — — — 1.6 1.6 1.6 Impairment and reversal of impairment of investments and assets, net — — — — — (0.2 ) — — — — — (9.6 ) (9.8 ) (9.8 ) Profit/(loss) on disposal of assets 0.7 0.2 0.1 — 0.3 — (0.4 ) 0.3 0.3 — 0.2 — 1.2 1.2 Royalties (1.6 ) (25.8 ) (10.3 ) (7.7 ) (43.8 ) (5.5 ) — 5 — 5 — 5 — 5 (30.5 ) — (81.4 ) (73.7 ) Mining and income tax 3.4 (52.4 ) (15.1 ) 0.2 (67.3 ) (37.6 ) — 5 — 5 — 5 — 5 (69.9 ) (4.0 ) (175.4 ) (175.6 ) Current taxation — (72.5 ) — — (72.5 ) (56.3 ) — 5 — 5 — 5 — 5 (55.7 ) (6.1 ) (190.6 ) (190.6 ) Deferred taxation 3.4 20.1 (15.1 ) 0.2 5.2 18.7 — 5 — 5 — 5 — 5 (14.2 ) 2.1 15.2 15.0 Profit/(loss) for the year 7.2 101.3 25.5 4.3 131.1 83.1 — 5 — 5 — 5 — 5 159.3 (201.7 ) 179.1 174.7 Profit/(loss) attributable to : - Owners of the parent 7.2 91.2 22.9 4.3 118.4 82.7 — 5 — 5 — 5 — 5 159.3 (201.7 ) 166.0 161.6 - Non-controlling — 10.1 2.6 — 12.7 0.4 — 5 — 5 — 5 — 5 — — 13.1 13.1 STATEMENT OF FINANCIAL POSITION Total assets (excluding deferred taxation) 875.0 1,773.8 440.5 — 2 2,214.3 744.4 792.7 567.0 419.2 650.4 2,429.3 32.8 6,295.8 6,295.8 Total liabilities (excluding deferred taxation) 1,357.9 276.9 361.6 — 2 638.5 232.1 160.1 114.9 122.0 600.8 997.8 (7.3 ) 3,219.0 3,219.0 Net deferred taxation (assets)/liabilities (201.0 ) 241.6 (0.1 ) — 2 241.5 66.4 — 5 — 5 — 5 — 5 114.7 (53.4 ) 168.1 168.1 Capital expenditure 6 33.1 125.5 76.3 26.8 228.6 56.1 98.3 76.1 72.2 72.1 318.7 2.8 639.3 612.5 The above is a geograhical analysis presented by location of assets. The Group’s continuing operations are primarily involved in gold mining, exploration and related activities. Activities are conducted and investments held both inside and outside South Africa. The segment results have been prepared and presented based on management’s reporting format. Gold mining operations are managed and internally reported based on the following geographical areas: in South Africa, South Deep mine, in Ghana, Tarkwa, Damang and Asanko mines, in Australia, St Ives, Agnew, Granny Smith and Gruyere and in Peru, the Cerro Corona mine. The Group also has exploration interests which are included in the “Corporate and other” segment. Refer to accounting policies on segment reporting on page xxx. Figures may not add as they are rounded independently. 1 The income statement and statement of financial position of South Deep is that of the operating mine and does not include any of the adjustments made in respect of the purchase price allocation relating to the acquisition of South Deep (refer note 14). South Deep Gold mine, being an unincorporated joint venture, is not liable for taxation. Taxation included in South Deep is indicative, as tax is provided in the holding companies at a rate of 29%. 2 For the purpose of the review of the segment by the CODM, Asanko’s income statement is proportionately consolidated in the Ghana segment. Equity Accounted Joint Venture carried at US$89.9 million. 3 “Corporate and other” represents the items to reconcile segment data to consolidated financial statement totals, including the elimination of intercompany transactions and balances as well as the Group’s exploration interests. This does not represent a separate segment as it does not generate revenue. Included in “Corporate and other” is the adjustment made in respect of the purchase price allocation of South Deep. 4 Other costs “Corporate and other” comprise share of profit of equity accounted investees, net of taxation of US$3.1 million, loss on buy-back 5 The Australian operations are entitled to transfer and off-set 6 Capital expenditure for the year ended 31 December 2019. 7 Includes revenue from the sale of copper amounting to US$165.1 million. 43. Segment report Financial summary—US$ million South r Ghana Peru Australia South 1 Tarkwa Damang Asanko 2 Total Cerro St Agnew/ Granny Total Gruyere Corporate 3 Group Group INCOME STATEMENT for the year ended 31 December 2018 Revenue 210.1 666.9 229.0 54.9 950.8 351.0 464.7 301.1 355.0 1,120.8 — — 2,632.7 2,577.8 Cost of sales (320.5 ) (477.1 ) (224.3 ) (52.9 ) (754.3 ) (236.6 ) (332.2 ) (236.4 ) (212.7 ) (781.3 ) — (3.1 ) (2,095.9 ) (2,043.0 ) Cost of sales before gold invetory change and amortisation and depreciation (262.0 ) (298.7 ) (143.5 ) (41.6 ) (483.8 ) (160.3 ) (200.9 ) (159.7 ) (166.3 ) (526.9 ) — 0.6 (1,432.4 ) (1,390.8 ) Gold inventory change (9.6 ) (10.1 ) 19.1 4.2 13.2 5.5 14.9 (1.7 ) (1.8 ) 11.4 — — 20.4 16.2 Amortisation and depreciation (48.9 ) (168.3 ) (99.9 ) (15.5 ) (283.7 ) (81.8 ) (146.2 ) (75.0 ) (44.6 ) (265.8 ) — (3.7 ) (683.9 ) (668.4 ) Other income/(costs) (6.3 ) (0.9 ) 8.4 (0.3 ) 7.2 1.5 4.5 9.1 1.1 14.8 (3.5 ) (44.5 ) (30.8 ) (30.5 ) Share-based payments (4.7 ) (6.8 ) (2.1 ) — (8.9 ) (4.3 ) (3.5 ) (2.6 ) (3.1 ) (9.2 ) — (10.4 ) (37.5 ) (37.5 ) Long-term incentive plan 0.1 0.4 — — 0.4 0.4 (0.2 ) — (0.2 ) (0.4 ) — (1.6 ) (1.1 ) (1.1 ) Exploration expense — — (0.4 ) — (0.4 ) (1.1 ) (18.2 ) (8.0 ) (11.0 ) (37.2 ) (0.5 ) (65.0 ) (104.2 ) (104.2 ) Restructuring costs (11.2 ) (88.8 ) (13.9 ) — (102.7 ) — — — — — — — (113.9 ) (113.9 ) Silicosis settlement costs — — — — — — — — — — — 4.5 4.5 4.5 Impairment and reversal of impairment of investments and assets, net (246.2 ) — — — — (1.9 ) — — — 0.0 — (272.2 ) (520.3 ) (520.3 ) Profit/(loss) on disposal of assets 1.0 (38.0 ) — — (38.0 ) — (0.3 ) (0.1 ) — (0.4 ) — (14.2 ) (51.6 ) (51.6 ) Investment income 0.9 8.3 — — 8.3 — 0.4 0.2 0.3 0.9 — (2.3 ) 7.8 7.8 Finance expense (9.6 ) (4.3 ) (9.8 ) — (14.1 ) (5.0 ) (2.5 ) (1.0 ) (1.0 ) (4.6 ) (0.2 ) (54.5 ) (88.0 ) (88.0 ) Gain on acquisition of Asanko — — — — — — — — — — — 51.8 51.8 51.8 Royalties (1.0 ) (21.2 ) (7.3 ) (2.8 ) (31.3 ) (5.1 ) — 5 — 5 — 5 (27.9 ) — — (65.3 ) (62.5 ) Mining and income tax 162.7 1.8 12.1 — 13.9 (56.4 ) — 5 — 5 — 5 (85.3 ) 1.2 29.8 65.9 65.9 Current taxation — (19.6 ) — — (19.6 ) (52.1 ) — 5 — 5 — 5 (89.6 ) 29.5 (13.9 ) (145.7 ) (145.7 ) Deferred taxation 162.7 21.4 12.1 — 33.5 (4.3 ) — 5 — 5 — 5 4.3 (28.3 ) 43.7 211.6 211.6 (Loss)/profit for the year (224.7 ) 40.1 (8.3 ) (1.1 ) 30.9 42.6 — 5 — 5 — 5 190.2 (3.0 ) (381.8 ) (345.9 ) (344.8 ) (Loss)/profit attributable to : - Owners of the parent (224.7 ) 36.1 (7.5 ) (1.1 ) 27.5 42.4 — 5 — 5 — 5 190.2 — 5 (381.8 ) (349.3 ) (348.2 ) - Non-controlling — 4.0 (0.8 ) — 3.2 0.2 — 5 — 5 — 5 — — 5 — 3.4 3.4 STATEMENT OF FINANCIAL POSITION at 31 December 2018 8 Total assets (excluding deferred taxation) 812.5 1,566.9 168.5 — 2 1,735.4 708.8 702.4 492.6 306.7 1,501.7 127.2 949.2 5,834.8 5,834.8 Total liabilities (excluding deferred taxation) 1,277.6 152.7 132.0 — 2 284.7 211.7 135.2 66.5 75.1 276.8 101.6 790.1 2,942.5 2,942.5 Net deferred taxation (assets)/liabilities (189.0 ) 261.7 (15.2 ) — 2 246.5 85.1 — 5 — 5 — 5 71.4 30.5 (59.1 ) 185.4 185.4 Capital expenditure 6 58.3 156.1 138.5 12.8 307.4 33.2 127.2 72.8 78.8 278.7 134.3 15.1 827.0 814.2 The above is a geograhical analysis presented by location of assets. The Group’s continuing operations are primarily involved in gold mining, exploration and related activities. Activities are conducted and investments held both inside and outside South Africa. The segment results have been prepared and presented based on management’s reporting format. Gold mining operations are managed and internally reported based on the following geographical areas: in South Africa, South Deep mine, in Ghana, Tarkwa and Damang mines, in Australia, St Ives, Agnew/ Lawlers, Granny Smith and Gruyere Gold project and in Peru, the Cerro Corona mine. Whilst the Gruyere Gold project does not meet the quantitative criteria for disclosure as a separate segment, it is expected to become a significant contributor to the Group’s performance in future years as the project is being developed. The Group also has exploration interests which are included in the “Corporate and other” segment. Refer to accounting policies on segment reporting on page xxx. US dollar figures may not add as they are rounded independently. 1 The income statement and statement of financial position of South Deep is that of the operating mine and does not include any of the adjustments made in respect of the purchase price allocation relating to the acquisition of South Deep (refer note 14). South Deep Gold mine, being an unincorporated joint venture, is not liable for taxation. Taxation included in South Deep is indicative, as tax is provided in the holding companies at a rate of 29%. 2 For the purpose of the review of the segment by the CODM, Asanko is proportionately consolidated in the Ghana segment. Equity Accounted Joint Venture carried at US$85.8 million. 3 “Corporate and other” represents the items to reconcile segment data to consolidated financial statement totals, including the elimination of intercompany transactions and balances as well as the Group’s exploration interests. This does not represent a separate segment as it does not generate revenue. Included in “Corporate and other” is the adjustment made in respect of the purchase price allocation of South Deep. 4 Other costs “Corporate and other” comprise share of loss of equity accounted investees, net of taxation of US$13.1 million and the balance of US$31.4 million consists mainly of corporate related costs. 5 The Australian operations are entitled to transfer and off-set 6 Capital expenditure for the year ended 31 December 2018. 7 Includes revenue from the sale of copper amounting to US$169.2 million. 8 Refer to note 42 for further details. Segment report Financial summary—US$ million South Ghana Peru Australia South 1 Tarkwa Damang Total Cerro St Agnew/ Granny Total Gruyere Corporate 2 Continuing Darlot Discontinued Group INCOME STATEMENT for the year ended 31 December 2017 Revenue 354.1 710.8 180.3 891.1 392.9 457.3 302.6 363.8 1,123.7 — — 2,761.8 49.0 49.0 2,810.8 Cost of sales (379.0 ) (526.0 ) (144.5 ) (670.5 ) (285.2 ) (330.9 ) (232.7 ) (203.9 ) (767.5 ) (1.3 ) (1.8 ) (2,105.1 ) (50.7 ) (50.7 ) (2,155.8 ) Cost of sales before gold invetory change and amortisation and depreciation (306.3 ) (348.0 ) (121.3 ) (469.3 ) (151.2 ) (187.6 ) (154.9 ) (156.8 ) (499.3 ) (1.3 ) 0.9 (1,426.5 ) (46.3 ) (46.3 ) (1,472.8 ) Gold inventory change 1.5 42.0 (0.9 ) 41.1 (3.1 ) 29.0 4.5 (3.6 ) 29.9 — — 69.5 (0.9 ) (0.9 ) 68.6 Amortisation and depreciation (74.2 ) (220.0 ) (22.3 ) (242.3 ) (130.9 ) (172.3 ) (82.3 ) (43.5 ) (298.1 ) — (2.7 ) (748.1 ) (3.5 ) (3.5 ) (751.6 ) Other income/(costs) 7.6 (3.1 ) (0.6 ) (3.7 ) (12.1 ) 18.0 6.4 4.6 29.0 — (10.3 ) 10.6 (0.2 ) (0.2 ) 10.4 Share-based payments (3.5 ) (4.8 ) (1.3 ) (6.1 ) (3.6 ) (2.2 ) (1.7 ) (2.1 ) (6.0 ) — (7.6 ) (26.8 ) (0.6 ) (0.6 ) (27.4 ) Long-term incentive plan — (0.9 ) (0.3 ) (1.2 ) (0.7 ) (0.7 ) (0.5 ) (0.6 ) (1.8 ) — (1.3 ) (5.0 ) (0.1 ) (0.1 ) (5.1 ) Exploration expense — — — — (0.5 ) (23.0 ) (15.9 ) (10.8 ) (49.6 ) (1.8 ) (57.8 ) (109.8 ) (1.5 ) (1.5 ) (111.3 ) Restructuring costs (2.3 ) (4.7 ) (2.2 ) (6.9 ) — — — — — — — (9.2 ) — — (9.2 ) Silicosis settlement costs — — — — — — — — — — (30.2 ) (30.2 ) — — (30.2 ) Impairment and reversal of impairment of investments and assets, net — (6.8 ) (3.5 ) (10.3 ) 52.6 — — — — — (242.5 ) (200.2 ) — — (200.2 ) Profit/(loss) on disposal of assets 0.3 2.9 (0.2 ) 2.7 — (0.2 ) 1.5 — 1.3 — (0.3 ) 4.0 — — 4.0 Investment income 0.8 3.4 0.2 3.6 — 0.9 0.6 0.7 2.2 — (1.0 ) 5.6 0.4 0.4 6.0 Finance expense (12.4 ) (5.2 ) (5.1 ) (10.3 ) (4.7 ) (2.8 ) (1.0 ) (1.0 ) (4.8 ) — (49.1 ) (81.3 ) — — (81.3 ) Gain on sale of discontinued operations — — — — — — — — — — — — 23.5 23.5 23.5 Royalties (1.8 ) (21.7 ) (5.5 ) (27.1 ) (5.3 ) — 4 — 4 — 4 (27.8 ) — 4 — (62.0 ) (1.1 ) (1.1 ) (63.1 ) Mining and income tax 10.9 (58.6 ) 3.1 (55.5 ) (36.1 ) — 4 — 4 — 4 (89.5 ) — 4 (3.0 ) (173.2 ) (5.6 ) (5.6 ) (179.0 ) Current taxation — (58.0 ) — (58.0 ) (50.8 ) — 4 — 4 — 4 (91.7 ) — 4 (4.2 ) (204.7 ) (2.3 ) (2.3 ) (207.0 ) Deferred taxation 10.9 (0.6 ) 3.1 2.5 14.7 — 4 — 4 — 4 2.2 — 4 1.2 31.5 (3.3 ) (3.3 ) 28.0 (Loss)/profit for the year (25.3 ) 85.4 20.4 105.8 97.4 — 4 — 4 — 4 209.2 — 4 (404.9 ) (20.8 ) 13.1 13.1 (7.7 ) (Loss)/profit attributable to : - Owners of the parent (25.3 ) 76.9 18.4 95.3 96.9 — 4 — 4 — 4 209.2 — 4 (404.9 ) (31.8 ) 13.1 13.1 (18.7 ) - Non-controlling — 8.5 2.0 10.5 0.5 — 4 — 4 — 4 — — 4 — 11.0 — — 11.0 STATEMENT OF FINANCIAL POSITION Total assets (excluding deferred taxation) 1,220.5 1,765.2 184.9 1,950.1 774.0 693.7 500.0 392.0 1,585.7 34.9 1,017.8 6,548.1 — — 6,548.1 Total liabilities (excluding deferred taxation) 1,352.1 232.3 130.0 362.3 188.7 138.2 71.5 78.1 287.8 32.9 572.4 2,763.2 — — 2,763.2 Net deferred taxation (assets)/liabilities (47.6 ) 283.1 (3.1 ) 280.0 80.8 — 4 — 4 — 4 82.8 — 4 (18.3 ) 381.9 — 4 — 4 381.9 Capital expenditure 5 82.4 180.6 132.1 312.8 34.0 156.2 73.7 87.0 316.9 81.1 6.4 833.6 6.8 6.8 840.4 The above is a geograhical analysis presented by location of assets. The Group’s continuing operations are primarily involved in gold mining, exploration and related activities. Activities are conducted and investments held both inside and outside South Africa. The segment results have been prepared and presented based on management’s reporting format. Gold mining operations are managed and internally reported based on the following geographical areas: in South Africa, South Deep mine, in Ghana, Tarkwa and Damang mines, in Australia, St Ives, Agnew/ Lawlers, Granny Smith and Gruyere Gold project and in Peru, the Cerro Corona mine. Whilst the Gruyere Gold project does not meet the quantitative criteria for disclosure as a separate segment, it is expected to become a significant contributor to the Group’s performance in future years as the project is being developed. The Group also has exploration interests which are included in the “Corporate and other” segment. Refer to accounting policies on segment reporting on page xxx. The Group’s discontinued operation is primarily involved in gold mining, exploration and related activities. Activities are conducted and investments held in Australia. US dollar figures may not add as they are rounded independently. 1 The income statement and statement of financial position of South Deep is that of the operating mine and does not include any of the adjustments made in respect of the purchase price allocation relating to the acquisition of South Deep (refer note 14). South Deep Gold mine, being an unincorporated joint venture, is not liable for taxation. Taxation included in South Deep is indicative, as tax is provided in the holding companies at a rate of 30%. 2 “Corporate and other” represents the items to reconcile segment data to consolidated financial statement totals, including the elimination of intercompany transactions and balances as well as the Group’s exploration interests. This does not represent a separate segment as it does not generate revenue. Included in “Corporate and other” is the adjustment made in respect of the purchase price allocation, including goodwill relating to the acquisition of South Deep. 3 Other costs “Corporate and other” comprise share of loss of associates after taxation of US$1.3 million and the balance of US$9.0 million consists mainly of corporate related costs. 4 The Australian operations are entitled to transfer and off-set 5 Capital expenditure for the year ended 31 December 2017. 6 Includes revenue from the sale of copper amounting to US$177.8 million.

Major Group Investments - direc

Major Group Investments - direct and indirect	12 Months Ended
Major Group Investments - direct and indirect	Dec. 31, 2019
Text block [abstract]
Major Group Investments - direct and indirect	4 4 Major Group Investments - direct and indirect for the year ended 31 December Shares held Group Notes 2019 2018 2019 2018 SUBSIDIARIES Unlisted Abosso Goldfields Ltd 6 - Class “A” shares 1 49,734,000 49,734,000 90.0 % 90.0 % - Class “B” shares 1 4,266,000 4,266,000 90.0 % 90.0 % Agnew Gold Mining Company Pty Ltd 2 54,924,757 54,924,757 100.0 % 100.0 % Beatrix Mines Ltd 3 96,549,020 96,549,020 100.0 % 100.0 % Beatrix Mining Ventures Ltd 3 9,625,001 9,625,001 100.0 % 100.0 % Darlot Mining Company Pty Ltd 2 1 1 100.0 % 100.0 % Driefontein Consolidated (Pty) Ltd 3 1,000 1,000 100.0 % 100.0 % GFI Joint Venture Holdings (Pty) Ltd 3 311,668,564 311,668,564 100.0 % 100.0 % GFL Mining Services Ltd 3 235,676,387 235,676,387 100.0 % 100.0 % Gold Fields Ghana Ltd 7 1 900 900 90.0 % 90.0 % Gold Fields Group Services (Pty) Ltd 3 1 1 100.0 % 100.0 % Gold Fields Holdings Company (BVI) Ltd 5 4,084 4,084 100.0 % 100.0 % Gold Fields La Cima S.A. 8 4 1,426,050,205 1,426,050,205 99.5 % 99.5 % Gold Fields Operations Ltd 3 156,279,947 156,279,947 100.0 % 100.0 % Gold Fields Orogen Holding (BVI) Ltd 5 356 356 100.0 % 100.0 % Gruyere Mining Company Pty Ltd 2 1 1 100.0 % 100.0 % GSM Mining Company Pty Ltd 2 1 1 100.0 % 100.0 % Kloof Gold Mining Company Ltd 3 138,600,000 138,600,000 100.0 % 100.0 % Newshelf 899 (Pty) Ltd 9 3 90,000,000 90,000,000 100.0 % 100.0 % St Ives Gold Mining Company Pty Ltd 2 281,051,329 281,051,329 100.0 % 100.0 % Total 1 Incorporated in Ghana. 2 Incorporated in Australia. 3 Incorporated in the Republic of South Africa. 4 Incorporated in Peru. 5 Incorporated in the British Virgin Islands. 6 Abosso Goldfields Ltd (“Abosso”) owns the Damang operation in Ghana. The accumulated non-controlling non-controlling 7 Gold Fields Ghana Ltd (“GFG”) owns the Tarkwa operation in Ghana. The accumulated non-controlling non-controlling 8 Gold Fields La Cima S.A. (“La Cima”) owns the Cerro Corona operation in Peru. The accumulated non-controlling non-controlling 9 Newshelf is the holding company of GFIJVH and GFO which own the South Deep mine. In terms of the South Deep BEE agreement, there is an agreed phase-in Shares held Group beneficial interest 2019 2018 2019 % 2018 OTHER 1 Listed associates Maverix Metals Incorporated (“Maverix”) 2 — 42,850,000 — 19.9 % Rusoro Mining Limited 140,000,001 140,000,001 25.7 % 25.7 % Joint venture Far Southeast Gold Resources Incorporated 1,737,699 1,737,699 40.0 % 40.0 % Asanko Gold Ghana Limited 450,000,000 450,000,000 45.0 % 45.0 % Adansi Gold Company Limited 100,000 100,000 50.0 % 50.0 % Shika Group Finance Limited 10,000 10,000 50.0 % 50.0 % Listed equity investments Asanko Gold Inc. 22 354 657 22 354 657 9.9 % 9.9 % Bezant Resources PLC 17,945,922 17,945,922 1.8 % 1.8 % Cardinal Resources Limited 3 81,038,233 42,818,182 16.4 % 11.3 % Cardinal Resources Limited (Options) 4 — 38,220,051 — 25.8 % RareX Limited 710,592 17,764,783 0.2 % 0.5 % Consolidated Woodjam Copper Corporation 3 16,115,740 16,115,740 19.9 % 19.9 % Gold Road Resources Limited 5 — 87,117,909 — 9.9 % Hummingbird Resources PLC 5 — 21,258,503 — 6.0 % Lefroy Exploration Limited 3 18,214,535 14,764,535 18.4 % 18.2 % Magmatic Resources Limited 19,200,000 17,600,000 12.5 % 15.0 % Orsu Metals Corp 2,613,491 2,613,491 6.2 % 7.2 % Red 5 Limited 5 — 246,875,821 — 19.9 % Chakana Copper Corp 3 15,686,275 — 16.8 % — 1 Only major investments are listed individually. 2 Maverix was disposed of during 2019, refer note 16.1 c 3 An assessment has been performed and the Group does not have significant influence. 4 The Cardinal Resources Limited options were converted to shares in 2019. 5 Disposed of during 2019.

Accounting Policies (Policies)

Accounting Policies (Policies)	12 Months Ended
Accounting Policies (Policies)	Dec. 31, 2019
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BASIS OF PREPARATION	1. BASIS OF PREPARATION The financial statements of the Group have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”), the SAICA Financial Reporting Guides as issued by the Accounting Practices Committee, Financial Reporting Pronouncements as issued by the Financial Reporting Standards Council, the JSE Listing Requirements and the South African Companies Act. This is the first set of the Group’s financial statements in which IFRS 16 Leases s As required by the United States Securities and Exchange Commission, the financial statements include the consolidated statements of financial position as at 31 December 2019 , 2018 7 2019 and 2018 and the related notes. The consolidated financial statements were authorised for issue by the Board of Directors on 30
Summary of Standards, Interpretations and Amendments to Published Standards Effective	Standards, interpretations and amendments to published standards effective for the year ended 31 December 2019 or early adopted by the Group During the financial year, the following new and revised accounting standards, amendments to standards and new interpretations were adopted by the Group: Standard(s) Amendment(s) Interpretation(s) Nature of the Change Salient features of the changes Impact on financial position or performance IFRS 16 Leases New standard • This IFRS sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract, i.e. the customer (‘lessee’) and the supplier (‘lessor’); • IFRS 16 replaces the previous leases Standard, IAS 17 Leases, and related Interpretations; • IFRS 16 has one model for lessees which will result in almost all leases being included on the statement of financial position. The lessee recognises a right-of-use • The Group adopted IFRS 16 on 1 January 2019. Refer to Note 41 of the consolidated financial statements Standard(s) Amendment(s) Interpretation(s) Nature of the Change Salient features of the changes Impact on financial position or performance IFRIC 23 Uncertainty over Income Tax Treatments New interpretation • This interpretation clarifies the accounting for income tax treatments that have yet to be accepted by tax authorities; • IFRIC 23 specifically clarifies how to incorporate this uncertainty into the measurement of tax as reported in the financial statements; • IFRIC 23 does not introduce any new disclosures but reinforces the need to comply with existing disclosure requirements about judgements made, assumptions and other estimates used and the potential impact of uncertainties that are not reflected; and • The Group adopted IFRIC 23 on 1 January 2019. No impact Various IFRS (2015/2017Cycle) • The annual improvements project is a collection of amendments to various IFRS standards and is the result of conclusions reached by the International Accounting Standards Board (“IASB”) on proposals made at its annual improvement project; and • The Group adopted the interpretation on 1 January 2019. No impact
Summary of Standards, Interpretations and Amendments to Published Standards Which Are Not Yet Effective	Standards, interpretations and amendments to published standards that are not yet effective Certain new standards, amendments and interpretations to existing standards have been published that apply to the Group’s accounting periods beginning on 1 January 2020 or later periods but have not been early adopted by the Group. These standards, amendments and interpretations that are relevant to the Group are: Standard(s) Amendment(s) Interpretation(s) Nature of the Change Salient features of the changes Effective IFRS 3 Amendments • These amendments make it easier for companies to decide whether activities and assets they acquire are a business or merely a group of assets. The amendments: • Confirm that a business must include inputs and a process, and clarified that: (i) the process must be substantive and (ii) the inputs and process must together significantly contribute to creating outputs. • Narrow the definitions of a business by focusing the definition of outputs on goods and services provided to customers and other income from ordinary activities, rather than on providing dividends or other economic benefits directly to investors or lowering costs; and • Add a test that makes it easier to conclude that a company has acquired a group of assets, rather than a business, if the value of the assets acquired is substantially all concentrated in a single asset or group of similar assets. • The amendments will not have a material impact on the Group. 1 January 2020 Standard(s) Amendment(s) Interpretation(s) Nature of the Change Salient features of the changes Effective date* IAS1 Statements and IAS8 Amendments • The IASB refined its definition of material to make it easier to understand. It is now aligned across IFRS Standards and the Conceptual Framework; • The revised definition of material is: • Information is material if omitting, misstating or obscuring it could reasonably be expected to influence decisions that the primary users of general purpose financial statements make on the basis of those financial statements, which provide financial information about a specific reporting entity. • The Board has also removed the definition of material omissions or misstatements from IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors; and • The amendments will not have a material impact on the Group. 1 January 2020 IFRS17 In surance Contracts New Standard • IFRS 17 supersedes IFRS 4 Insurance Contracts • In addition, it includes a simplified approach and modifications to the general measurement model that can be applied in certain circumstances and to specific contracts, such as: • Reinsurance contracts held; • Direct participating contracts; and • Investment contracts with discretionary participation features. • Under the new standard, investment components are excluded from insurance revenue and service expenses. Entities can also choose to present the effect of changes in discount rates and other financial risks in profit or loss or OCI; • The new standard includes various new disclosures and requires additional granularity in disclosures to assist users to assess the effects of insurance contracts on the entity’s financial statements; and • The Group is in the process of evaluating whether IFRS 17 will have an impact on the Group and will provide more detailed disclosure on the impact in future financial statements . 1 January 2021 * Effective date refers to annual period beginning on or after said date.
Significant accounting judgements and estimates	Significant accounting judgements and estimates Use of estimates: The preparation of the financial statements in accordance with IFRS requires the Group’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. The determination of estimates requires the exercise of judgement based on various assumptions and other factors such as historical experience, current and expected economic conditions, and in some cases actuarial techniques. Actual results could differ from those estimates. The more significant areas requiring the use of management estimates and assumptions relate to the following: • Mineral reserves and resources estimates (this forms the basis of future cash flow estimates used for impairment assessments and units-of-production • Carrying value of property, plant and equipment; • Production start date; • Estimates of recoverable gold and other materials in heap leach and stockpiles, gold in process and product inventories including write-downs of inventory to net realisable value; • Provision for environmental rehabilitation costs; • Provision for silicosis settlement costs; • Income taxes; • Share-based payments; • Long-term incentive plan; • The fair value and accounting treatment of financial instruments; and • Contingencies. Estimates and judgements are continually evaluated and are based on historical experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. The estimates and assumptions that have a significant risk of causing a material adjustment to the carrying amounts of assets and liabilities within the financial year are discussed below. Mineral reserves and resources estimates Mineral reserves are estimates of the amount of product, inclusive of diluting materials and allowances for losses, which can be economically and legally extracted from the Group’s properties, as determined by life-of-mine pre-feasibility Mineral resources are estimates, based on specific geological evidence and knowledge, including sampling, of the amount of product in situ, for which there is a reasonable prospect for eventual legal and economic extraction. In order to calculate the reserves and resources, estimates and assumptions are required about a range of geological, technical and economic factors, including but not limited to quantities, grades, production techniques, recovery rates, production costs, capital expenditure, transport costs, commodity demand, commodity prices and exchange rates. Estimating the quantity and grade of the mineral reserves and resources is based on exploration and sampling information gathered through appropriate techniques (primarily diamond drilling, reverse circulation drilling, air-core The Group is required to determine and report on the mineral reserves and resources in accordance with the South African Mineral Resource Committee (“SAMREC”) code on an annual basis. The Mineral Reserves and Resources were approved by the Competent Person. Estimates of mineral reserves and resources may change from year to year due to the change in economic, regulatory, infrastructural or social assumptions used to estimate ore reserves and resources, and due to additional geological data becoming available. Changes in reported proved and probable reserves may affect the Group’s financial results and position in a number of ways, including the following: • The recoverable amount used in the impairment calculations may be affected due to changes in estimated cash flows or timing thereof (refer note 6); • Amortisation and depreciation charges to profit or loss may change as these are calculated on the units-of-production • Provision for environmental rehabilitation costs may change where changes in ore reserves affect expectations about the timing or cost of these activities (refer note 25.1); and • The carrying value of deferred tax assets may change due to changes in estimates of the likely recovery of the tax benefits (refer note 23 Changes in reported measured and indicated resources may affect the Group’s financial results and position in a number of ways, including the following: • The recoverable amount used in the impairment calculations may be affected due to changes in estimated market value of resources exclusive of reserves (refer note 6); and • Amortisation and depreciation charges for the mineral rights asset at the Australian operations may change as a result of the change in the portion of mineral rights asset being transferred from the non-depreciable Carrying value of property, plant and equipment All mining assets are amortised using the units-of-production Mobile and other equipment are depreciated over the shorter of the estimated useful life of the asset or the estimate of mine life based on proved and probable mineral reserves. The calculation of the units-of-production d • Changes in prove d • Differences between actual commodity prices and commodity price assumptions; • Unforeseen operational issues at mine sites; • Changes in capital, operating, mining, processing and reclamation costs, discount rates and foreign currency exchange rates; and • Changes in mineral reserves could similarly impact the useful lives of assets depreciated on a straight-line basis, where those lives are limited to the life of the mine. The Group reviews and tests the carrying value of long-lived assets annually or when events or changes in circumstances suggest that the carrying amount may not be recoverable by comparing the recoverable amounts to these carrying values. Assets are grouped at the lowest level for which identifiable cash flows are largely independent of cash flows of other assets and liabilities. If there are indications that impairment or reversal of impairment may have occurred, estimates are prepared of recoverable amounts of each group of assets. The recoverable amounts of cash-generating units (“CGU”) and individual assets have been determined based on the higher of value-in-use and fair value less cost of disposal (“FVLCOD”) calculations. Expected future cash flows used to determine the value in use or FVLCOD of property, plant and equipment and goodwill are inherently uncertain and could materially change over time. They are significantly affected by a number of factors including reserves and production estimates, together with economic factors such as the gold and copper prices, discount rates, foreign currency exchange rates, resource valuations (determined based on comparable market transactions), estimates of costs to produce reserves and future capital expenditure. The Group generally used FVLCOD to determine the recoverable amount of each CGU. Significant assumptions used in the Group’s impairment assessments (FVLCOD calculations) include: 2019 2018 US$ Gold price per ounce – year 1 US$ 1,500 US$ 1,200 US$ Gold price per ounce – year 2 and 3 US$ 1,400 US$ 1,300 US$ Gold price per ounce – year 4 onwards US$ 1,350 US$ 1,300 Rand Gold price per kilogram – year 1 R 700,000 R 525,000 Rand Gold price per kilogram – year 2 and 3 R 650,000 R 550,000 Rand Gold price per kilogram – year 4 onwards R 630,000 R 550,000 A$ Gold price per ounce – year 1 A$ 2,150 A$ 1,600 A$ Gold price per ounce – year 2 and 3 A$ 1,970 A$ 1,700 A$ Gold price per ounce – year 4 onwards A$ 1,850 A$ 1,700 US$ Copper price per tonne – year 1 US$ 5,730 US$ 5,951 US$ Copper price per tonne – year 2 and 3 US$ 6,612 US$ 6,612 US$ Copper price per tonne – year 4 onwards US$ 6,612 US$ 6,612 Resource value per ounce (used to calculate the value beyond proved and probable reserves) • South Africa (with infrastructure) US$ 16 US$ 17 • Ghana (with infrastructure) US$ 70 US$ 44 • Peru (with infrastructure) US$ 34 US$ 70 • Australia (with infrastructure) US$ 77 US$ 28 Discount rates • South Africa – nominal 14.1 % 13.5 % • Ghana – real 8.5 % 9.5 % • Peru – real 5.0 % 4.9 % • Australia – real 3.5 % 3.4 % Inflation rate – South Africa1 5.3 % 5.5 % Life-of-mine • South Deep 75 years 75 years • Tarkwa 14 years 14 years • Damang 6 years 7 years • Cerro Corona 13 years 12 years • St Ives 9 years 7 years • Agnew 4 years 4 years • Granny Smith 13 years 12 years • Gruyere 11 years 12 years Long-term exchange rates US$/ZAR – year 1 14.50 13.61 US$/ZAR – year 2 onwards 14.50 13.16 A$/US$ – year 1 0.70 0.75 A$/US$ – year 2 and 3 0.71 0.76 A$/US$ – year 4 onwards 0.73 0.76 1 Due to the availability of unredeemed capital for tax purposes over several years into the life of the South Deep mine, nominal cash flows are used for South Africa. In order to determine nominal cash flows in South Africa, costs are inflated by the current South African inflation rate. Cash flows for all other operations are in real terms and as a result are not inflated. The FVLCOD calculations are sensitive to the gold price assumptions and an increase or decrease in the gold price could materially change the FVLCOD. Should there be a significant decrease in the gold or copper price, the Group would take actions to assess the implications on the life-of-mine Refer notes 2, 6 and 13 for further details. The carrying amount of property, plant and equipment at 31 December 2019 was US$4,657.1 million (2018: US$4,259.2 million). An impairment of US$nil (2018: US$481.5 million and 2017: US$277.8 million) was recognised in respect of the South Deep CGU for the year ended 31 December 2019. US$nil (2018: US$71.7 million and 2017: US$277.8 million) of the total impairment was firstly allocated against goodwill and the remainder of US$ nil nil assets. The carrying value of the South Deep CGU amounts to US$1.5 billion (R21.1 billion) (2018: US$1.4 billion (R21.2 billion)) at 31 December 2019. Production start date The Group assesses the stage of each mine construction project to determine when a mine moves into the production stage. The criteria used to assess the start date are determined based on the unique nature of each mine construction project. The Group considers various relevant criteria to assess when the mine is substantially complete, ready for its intended use and moves into the production stage. Some of the criteria would include, but are not limited to the following: • The level of capital expenditure compared to the construction cost estimates; • Ability to produce metal in saleable form (within specifications); and • Ability to sustain commercial levels of production of metal. When a mine construction project moves into the production stage, the capitalisation of certain mine construction costs ceases and costs are either regarded as inventory or expensed, except for capitalisable costs related to mining asset additions or improvements, underground mine development, deferred stripping activities or ore reserve development. Refer note 16.2 for details of the Gruyere Gold project. Stockpiles, gold in process and product inventories Costs that are incurred in or benefit the productive process are accumulated as stockpiles, gold in process, ore on leach pads and product inventories. Net realisable value tests are performed on a monthly basis for short-term stockpiles, gold in process and product inventories and at least annually for long-term stockpiles and represent the estimated future sales price of the product based on prevailing spot metals prices at the reporting date, less estimated costs to complete production and bring the product to sale. If any inventories are expected to be realised in the long term, estimated future sales prices are used for valuation purposes. Stockpiles are measured by estimating the number of tonnes added and removed from the stockpile, the number of contained gold ounces based on assay data, and the estimated recovery percentage based on the expected processing method. Stockpile tonnages are verified by periodic surveys. Although the quantities of recoverable metal are reconciled by comparing the grades of ore to the quantities of metals actually recovered (metallurgical balancing), the nature of the process inherently limits the ability to precisely monitor the recoverability levels. As a result, the metallurgical balancing process is constantly monitored and engineering estimates are refined based on actual results over time. Variations between actual and estimated quantities resulting from changes in assumptions and estimates that do not result in write downs to net realisable value are accounted for on a prospective basis. Refer note 19 for further details. The carrying amount of total gold-in-process (non-current Carrying value of equity accounted investees The Group reviews and tests the carrying value of equity accounted investees annually or when events or changes in circumstances suggest that the carrying amount may not be recoverable by comparing the recoverable amounts to these carrying values. If there are indications that impairment may have occurred, estimates are prepared of the recoverable amount of the equity accounted investee. The recoverable amounts are determined based on the higher of value-in-use or FVLCOD. The FVLCOD is determined using the following methods: • A combination of the income and market approach. The income approach is based on the expected future cash flows of the operations and the market approach is used to determine the value beyond proved and probable reserves for the operation, using comparable market transactions; and • Using quoted market prices of other investors in the equity accounted investee with appropriate adjustments in order to derive the fair value. Expected future cash flows used to determine the FVLCOD of equity accounted investees are inherently uncertain and could materially change over time. They are significantly impacted by a number of factors including reserves and production estimates, together with economic factors such as gold and copper prices, discount rates, foreign currency exchange rates, resource valuations (determined based on comparable market transactions), estimates of costs to produce reserves and future capital expenditure. The key assumptions used in the income and market approach are consistent with those used in determining the FVLCOD for impairment of property, plant and equipment (refer page ●●) and in addition the life-of-mine of Asanko is 10 years. The quoted market prices of the other investee is the quoted market price of Asanko Inc. The FVLCOD calculations are sensitive to the gold price assumption and the quoted market prices, a decrease or increase in these two assumptions could materially change the FVLCOD. Refer note 16.1 for further details. The carrying amount of equity accounted investees at 31 December 2019 was US$172.0 million (2018: US$225.1 million). Provision for environmental rehabilitation costs The Group’s mining and exploration activities are subject to various laws and regulations governing the protection of the environment. The Group recognises management’s best estimate for the provision of environmental rehabilitation costs in the period in which they are incurred. Actual costs incurred in future periods could differ materially from the estimates. Additionally, future changes to environmental laws and regulations, life-of-mine Refer note 25.1 for details of key assumptions used to estimate the provision. The carrying amounts of the provision for environmental rehabilitation costs at 31 December 2019 was US$370.3 million (2018: US$289.6 million). Provision for silicosis settlement costs The Group has an obligation in respect of a possible settlement of the silicosis class action claims and related costs. The Group recognises management’s best estimate for the provision of silicosis settlement costs. The ultimate outcome of the class action remains uncertain, with the number of eligible workers successfully submitting claims and receiving compensation being uncertain. The provision is consequently subject to adjustment in the future. Refer notes 25.2 and 35 for further details. The carrying amounts of the provision for silicosis settlement costs at 31 December 2019 was US$21.2 million (2018: US$25.1 million) of which US$4.6 million (2018: US$nil) was classified as current and US$16.6 million (2018: US$25.1 million) as non-current. Income taxes The Group is subject to income taxes in numerous jurisdictions. Significant judgement is required in determining the liability for income taxes due to the complexity of legislation. There are many transactions and calculations for which the ultimate tax determination is uncertain during the ordinary course of business. The Group recognises liabilities for anticipated tax audit issues based on estimates of whether additional taxes will be due. Where the final tax outcome of these matters is different from the amounts that were initially recorded, such differences will impact income tax and deferred tax in the period in which such determination is made. The Group recognises the future tax benefits related to deferred income tax assets to the extent that it is probable that the deductible temporary differences will reverse in the foreseeable future. Assessing the recoverability of deferred income tax assets requires the Group to make significant estimates related to expectations of future taxable income. Estimates of future taxable income are based on forecast cash flows from operations and the application of existing tax laws in each jurisdiction. To the extent that future cash flows and taxable income differ significantly from estimates, the ability of the Group to realise the net deferred tax assets recorded at the reporting date could be impacted. Additionally, future changes in tax laws in the jurisdictions in which the Group operates could limit the ability of the Group to obtain tax deductions in future periods. Refer notes 23 and 31 for further details. Carrying values at 31 December 2019: • Deferred taxation liability: US$433.6 million (2018: US$454.9 million) • Deferred taxation asset: US$ 265.5 • Taxation payable: US$ 24.8 million (2018 Restated 1 : US$ 0.9 million) 1 Refer note 42 for further details. Refer note 9 for details of unrecognised deferred tax assets. Share-based payments The Group issues equity-settled share-based payments to executive directors, certain officers and employees. The fair value of these instruments is measured at grant date, using the Black-Scholes and Monte Carlo simulation valuation models, which require assumptions regarding the estimated term of the option, share price volatility and expected dividend yield. While Gold Fields’ management believes that these assumptions are appropriate, the use of different assumptions could have a material impact on the fair value of the option granted and the related recognition of the share-based payments expense in the consolidated income statement. Gold Fields’ options have characteristics significantly different from those of traded options and therefore fair values may also differ. Refer note 5 for further details. The income statement charge from continuing operations for the year ended 31 December 2019 was US$20.5 million (2018: US$37.5 million and 2017: US$26.8 million). Long-term incentive plan The Group issues awards relating to its long-term incentive plan to certain employees. These awards are measured on the date the award is made and re-measured at each reporting period. A portion of the award is measured using the Monte Carlo simulation valuation model, which requires assumptions regarding the share price volatility and expected dividend yield. The assumptions, supporting the estimated amount expected to be paid, are reviewed at each reporting date. While Gold Fields’ management believes that these assumptions are appropriate, the use of different assumptions could have a material impact on the measurement of the awards and the related recognition of the compensation expense in profit or loss. Refer note 26 for further details. The charge for the year ended 31 December 2019 was US$9.1 million (2018: US$1.1 million and 2017: US$5.0 million) and the balance at 31 December 2019 of the long-term cash incentive provision was US$11.5 million (2018: US$2.1 million). Financial instruments Derivative financial instruments The estimated fair value of financial instruments is determined at discrete points in time, based on the relevant market information. The fair value is calculated with reference to market rates using industry valuation techniques and appropriate models. The carrying values of derivative financial instruments included in trade and other receivables at 31 December 2019 was US$1.1 million (2018: US$8.3 million) and included in trade and other payables US$127.6 million (2018: US$22.6 million). Refer notes 20, 27 and 38 for further details. Asanko redeemable preference shares Significant judgement is required in estimating life-of-mine In order to estimate the life-of-mine The life-of-mine The fair value of the Asanko redeemable preference shares at 31 December 2019 was US$95.5 million (2018: US$132.9 million). Contingencies By their nature, contingencies will only be resolved when one or more future events occur or fail to occur. The assessment of such contingencies inherently involves the exercise of significant judgement and estimates of the outcome of future events. Such contingencies include, but are not limited to environmental obligations, litigation, regulatory proceedings, tax matters and losses resulting from other events and developments. When a loss is considered probable and reasonably estimable, a liability is recorded based on the best estimate of the ultimate loss. The likelihood of a loss with respect to a contingency can be difficult to predict and determining a meaningful estimate of the loss or a range of losses may not always be practicable based on the information available at the time and the potential effect of future events and decisions by third parties that will determine the ultimate resolution of the contingency. It is not uncommon for such matters to be resolved over many years, during which time relevant developments and new information is continuously evaluated to determine both the likelihood of any potential loss and whether it is possible to reasonably estimate a range of possible losses. When a loss is probable but a reasonable estimate cannot be made, disclosure is provided. Refer note 35 for details on contingent liabilities.
CONSOLIDATION	2. CONSOLIDATION 2.1. Business combinations The acquisition method of accounting is used to account for business combinations by the Group. The consideration transferred for the acquisition of a business is the fair value of the assets transferred, the liabilities incurred and the equity interests issued by the Group. The consideration transferred includes the fair value of any asset or liability resulting from a contingent consideration arrangement. Acquisition-related costs are expensed as incurred, other than those associated with the issue of debt or equity securities. Identifiable assets acquired and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date. On an acquisition-by-acquisition non-controlling non-controlling non-controlling non-controlling The excess of the consideration transferred, the amount of any non-controlling If a transaction does not meet the definition of a business under IFRS, the transaction is recorded as an asset acquisition. Accordingly, the identifiable assets acquired and liabilities assumed are measured at the fair value of the consideration paid, based on their relative fair values at the acquisition date. Acquisition-related costs are included in the consideration paid and capitalised. Any contingent consideration payable that is dependent on the purchaser’s future activity is not included in the consideration paid until the activity requiring the payment is performed. Any resulting future amounts payable are recognised in profit or loss when incurred. No goodwill and no deferred tax asset or liability arising from the assets acquired and liabilities assumed are recognised upon the acquisition of assets. 2.2. Subsidiaries Subsidiaries are all entities controlled by the Group. The Group controls an entity when it is exposed to, or has rights to, variable returns from its involvement with the entity and has the ability to affect those returns through its power over the relevant activities of the entity. Subsidiaries are fully consolidated from the date on which control is transferred to the Group until the date on which control ceases. Inter-company transactions, balances and unrealised gains and losses on transactions between Group companies are eliminated. Accounting policies of subsidiaries have been changed where necessary to ensure consistency with the policies adopted by the Group. 2.3. Transactions with non-controlling The Group treats transactions with non-controlling non-controlling non-controlling 2.4. Equity accounted investees The Group’s interests in equity accounted investees comprise interests in associates and joint ventures. Associates are those entities in which the Group has significant influence, but not control or joint control, over the financial and operating policies. Joint ventures are arrangements in which the Group has joint control, whereby the Group has rights to the net assets of the arrangement, rather than rights to its assets and obligations for its liabilities. Interests in associates and joint ventures are accounted for using the equity method. They are recognised initially at cost, which includes transaction costs. Subsequent to initial recognition, the consolidated financial statements include the Group’s share of the profit or loss and the other comprehensive income of equity accounted investees, until the date on which significant influence or joint control ceases. Results of associates and joint ventures are equity accounted using the results of their most recent audited financial statements. Any losses from associates or joint ventures are brought to account in the consolidated financial statements until the interest in such associates or joint ventures is written down to zero. Thereafter, losses are accounted for only insofar as the Group is committed to providing financial support to such associates or joint ventures. The carrying value of an investment in associate and joint ventures represents the cost of the investment, including goodwill, a share of the post-acquisition retained earnings and losses, any other movements in reserves and any accumulated impairment losses. The Group applies IFRS 9 to long-term interests in an associate or joint venture that form part of the net investment in the associate or joint venture but to which the equity method is not applied. This has a direct impact on the Group’s accounting treatment for the Asanko Gold Ghana Limited (“Asanko”) acquisition where the redeemable preference shares that form part of the consideration for the Group’s investment into Asanko have been measured in accordance with the requirements of IFRS 9 (refer to note 15). This specific amendment to IAS 28 applies for annual periods beginning on or after 1 January 2019, however the Group has early adopted the standard as permitted by IAS 28.The carrying value is assessed annually for existence of indicators of impairment and if such exist, the carrying amount is compared to the recoverable amount, being the higher of value in use or fair value less cost of disposal. If an impairment in value has occurred, it is recognised in profit or loss in the period in which the impairment arose. 2.5. Joint operations A joint operation is a joint arrangement whereby the parties that have joint control of the arrangement have rights to the use of assets and obligations for the liabilities of the arrangement. The Group accounts for activities under joint operations by recognising in relation to the joint operation, the assets it controls and the liabilities it incurs, the expenses it incurs and the revenue from the sale or use of its share of the joint operations output.
FOREIGN CURRENCIES	3. FOREIGN CURRENCIES 3.1. Functional and presentation currency Items included in the financial statements of each of the Group entities are measured using the currency of the primary economic environment in which the entity operates (“the functional currency”). The consolidated financial statements are presented in US Dollar, which is the Group’s presentation currency. The functional currency of the parent company is South African Rand. 3.2. Transactions and balances Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the dates of the transactions. Foreign exchange gains and losses resulting from the settlement of such transactions, and from the translation of monetary assets and liabilities denominated in foreign currencies, are recognised in profit or loss. 3.3. Foreign operations The results and financial position of all the Group entities (none of which has the currency of a hyperinflationary economy) that have a functional currency different from the presentation currency are translated into the presentation currency as follows: Assets and liabilities are translated at the exchange rate ruling at the reporting date (ZAR/US$: 14.00; US$/A$: 0.70 (2018: ZAR/US$: 14.63; US$/A$: 0.70 and 2017 : ZAR /US $ 12.58 ; US $/A$ 0.77)) On consolidation, exchange differences arising from the translation of the net investment in foreign operations (i.e. the reporting entity’s interest in the net assets of that operation), and of borrowings and other currency instruments designated as hedges of such investments, are taken to other comprehensive income. When a foreign operation is sold, exchange differences that were recorded in other comprehensive income are recognised in profit or loss as part of the gain or loss on disposal. If the Group disposes of part of its interest in a subsidiary but retains control, then the relevant proportion of the cumulative amount is reattributed to non-controlling Goodwill and fair value adjustments arising on the acquisition of a foreign operation are treated as assets and liabilities of the foreign operation and are translated at each reporting date at the closing rate.
PROPERTY, PLANT AND EQUIPMENT	4. PROPERTY, PLANT AND EQUIPMENT 4.1. Mine development and infrastructure Mining assets, including mine development and infrastructure costs and mine plant facilities, are recorded at cost less accumulated depreciation and accumulated impairment losses. Expenditure incurred to evaluate and develop new orebodies, to define mineralisation in existing orebodies and to establish or expand productive capacity, is capitalised until commercial levels of production are achieved, at which times the costs are amortised as set out below. Development of orebodies includes the development of shaft systems and waste rock removal that allows access to reserves that are economically recoverable in the future. Subsequent to this, costs are capitalised if the criteria for recognition as an asset are met. 4.2. Borrowing costs Borrowing costs incurred in respect of assets requiring a substantial period of time to prepare for their intended future use are capitalised to the date that the assets are substantially completed. 4.3. Mineral and surface rights Mineral and surface rights are recorded at cost less accumulated amortisation and accumulated impairment losses. When there is little likelihood of a mineral right being exploited, or the fair value of mineral rights has diminished below cost, an impairment loss is recognised in profit or loss in the year that such determination is made. 4.4. Land Land is shown at cost and is not depreciated. 4.5. Other assets Non-mining non-mining 4.6. Amortisation and depreciation of mining assets Amortisation and depreciation is determined to give a fair and systematic charge to profit or loss taking into account the nature of a particular ore body and the method of mining that ore body. To achieve this, the following calculation methods are used: • Mining assets, including mine development and infrastructure costs, mine plant facilities and evaluation costs, are amortised over the life of the mine using the units-of-production • Stripping activity assets are amortised on a units-of-production • The mineral rights asset at the Australian operations are divided at the respective operations into a depreciable and a non-depreciable non-depreciable Subsequently, and on an annual basis, as part of the preparation of the updated reserve and resource statement and preparation of the updated life-of-mine non-depreciable non-depreciable Each operation typically comprises a number of mines and the depreciable component of the mineral rights asset is therefore allocated on a mine-by-mine units-of-production non-depreciable Proved and probable ore reserves reflect estimated quantities of economically recoverable reserves, which can be recovered in future from known mineral deposits. Certain mining plant and equipment included in mine development and infrastructure is depreciated on a straight-line basis over the lesser of their estimated useful lives or life-of-mine. 4.7. Depreciation of non-mining Non-mining The assets’ useful lives, depreciation methods and residual values are reassessed at each reporting date and adjusted if appropriate. 4.8. Depreciation of right-of-use The right-of-use right-of-use right-of-use right-of-use re-measurements 4.9. Mining exploration Expenditure on advances solely for exploration activities is charged against profit or loss until the viability of the mining venture has been proven. Expenditure incurred on exploration “farm-in” Exploration activities at certain of the Group’s non-South 4.10. Impairment Recoverability of the carrying values of long-term assets or CGUs of the Group are reviewed annually or whenever events or changes in circumstances indicate that such carrying values may not be recoverable. To determine whether a long-term asset or CGU may be impaired, the higher of “value in use” (defined as: “the present value of future cash flows expected to be derived from an asset or CGU”) or “fair value less costs of disposal” (defined as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date”) is compared to the carrying value of the asset/CGU. Impairment losses are recognised in profit or loss. A CGU is defined by the Group as the smallest identifiable group of assets that generates cash inflows that are largely independent of the cash inflows from other assets or groups of assets. Generally for the Group this represents an individual operating mine, including mines which are part of a larger mine complex. The costs attributable to individual shafts of a mine are impaired if the shaft is closed. Exploration targets in respect of which costs have been capitalised at certain of the Group’s international operations are evaluated on an annual basis to ensure that these targets continue to support capitalisation of the underlying costs. Those that do not are impaired. When any infrastructure is closed down during the year, any carrying value attributable to that infrastructure is impaired. 4.11. Gain or loss on disposal of property, plant and equipment Any gain or loss on disposal of property, plant and equipment (calculated as the net proceeds from disposal less the carrying amount of the item) is recognised in profit or loss. 4.12. Leases The Group applied IFRS 16 from 1 January 2019. The effect of initially applying IFRS 16 is described in note 41 and in the basis of preparation above. Leases recognition under IFRS 16 (applicable from 1 January 2019) At inception of a contract, the Group assesses whether a contract is, or contains, a lease. A contract is, or contains, a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for a consideration. The Group recognises a right-of-use right-of-use right-of-use The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date, discounted using the interest rate implicit in the lease or, if that rate cannot be readily determined, the Group’s incremental borrowing rate. Generally, the Group uses its incremental borrowing rate as the discount rate. The Group determines its incremental borrowing rate by obtaining interest rates from various external financing sources and makes certain adjustments to reflect the terms of the lease and type of the asset leased. Subsequent to initial recognition, the lease liability is measured at amortised cost using the effective interest rate method. It is re-measured • If there is a change in the Group’s estimate of the amount expected to be payable under a residual value guarantee; • If the Group changes its assessment of whether it will exercise a purchase, extension or termination option; • If there is a revised in-substance • If there is a change in future lease payments resulting from a change in an index or a rate used to determine those payments. When the lease liability is re-measured right-of-use right-of-use The Group has elected not to recognise right-of-use low-value Low-value The Group has elected not to apply the practical expedient to grandfather the assessment of which transactions are leases and applied IFRS 16 to all contracts. Leases recognition under IAS 17 (applicable before 1 January 2019) At the inception of an arrangement, the Group determined whether the arrangement contained a lease. Leases that transfer to the Group substantially all of the risks and rewards of ownership were classified as finance leases. Leased assets were measured initially at an amount equal to the lower of their fair value and the present value of the minimum lease payments. Subsequent to initial recognition, the assets were accounted for in accordance with the accounting policy applicable to that asset. All other leases were classified as operating leases and were not recognised in the statement of financial position. Operating lease costs were charged against profit or loss on a straight-line basis over the period of the lease. 4.13. Deferred stripping Production stripping costs in a surface mine are capitalised to property, plant and equipment if, and only if, all of the following criteria are met: • It is probable that the future economic benefit associated with the stripping activity will flow to the entity; • The entity can identify the component of the ore body for which access has been improved; and • The costs relating to the stripping activity associated with that component can be measured reliably. If the above criteria are not met, the stripping costs are recognised directly in profit or loss. The Group initially measures the stripping activity asset at cost, this being the accumulation of costs directly incurred to perform the stripping activity that improves access to the identified component of ore. After initial recognition, the stripping activity asset is carried at cost less accumulated amortisation and accumulated impairment losses.
TAXATION	5. TAXATION Income tax expense comprises current and deferred tax. Current tax and deferred tax are recognised in profit or loss except to the extent that it relates to a business combination, or items recognised directly in equity or in other comprehensive income. Current tax is measured on taxable income at the applicable statutory rate substantively enacted at the reporting date. Interest and penalties are accounted for in current tax. Deferred taxation is provided on temporary differences existing at each reporting date between the tax values of assets and liabilities and their carrying amounts. Substantively enacted tax rates are used to determine future anticipated tax rates which in turn are used in the determination of deferred taxation. Deferred taxation is not recognised for temporary differences on the initial recognition of assets or liabilities in a transaction that is not a business combination and that affects neither accounting nor taxable profit or loss and taxable temporary differences arising on the initial recognition of goodwill. The measurement of deferred tax reflects the tax consequences that would follow the manner in which the Group expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities. These temporary differences are expected to result in taxable or deductible amounts in determining taxable profits for future periods when the carrying amount of the asset is recovered or the liability is settled. Deferred tax liabilities are generally recognised for all taxable temporary differences. Deferred tax liabilities are recognised for taxable temporary differences arising on investments in subsidiaries and equity accounted investees except where the reversal of the temporary difference can be controlled and it is probable that the difference will not reverse in the foreseeable future. Deferred tax assets relating to the carry forward of unutilised tax losses and/or deductible temporary differences are recognised to the extent it is probable that future taxable profit will be available against which the unutilised tax losses and/or deductible temporary differences can be recovered. Deferred tax assets are reviewed at each reporting date and are adjusted if recovery is no longer probable. Deferred tax assets and liabilities are offset if there is a legally enforceable right to offset current tax liabilities and assets, and they relate to taxes levied by the same tax authority on the same taxable entity, or on different tax entities, but they intend to settle current tax liabilities and assets on a net basis or their tax assets and liabilities will be realised simultaneously. When assessing uncertain tax positions, the Group considers whether it is probable that the relevant authority will accept each tax treatment, or group of tax treatments, that the Group used or plans to use in its income tax filing. Except for Tarkwa and Cerro Corona, no provision is made for any potential taxation liability on the distribution of retained earnings by Group companies as it is probable that the related taxable temporary differences will not reverse in the foreseeable future.
INVENTORIES	6. INVENTORIES Inventories are valued at the lower of cost and net realisable value. Gold on hand represents production on hand after the smelting process. Cost is determined on the following basis: • Gold on hand and gold-in-process • Heap leach and stockpile inventories are valued using weighted average cost. Cost includes production, amortisation and direct administration costs. The cost of materials on the heap leach and stockpiles from which metals are expected to be recovered in a period longer than 12 months is classified as non-current • Consumable stores are valued at weighted average cost, after appropriate provision for redundant and slow-moving items. Net realisable value is determined with reference to relevant market prices or the estimated future sales price of the product if it is expected to be realised in the long term.
FINANCIAL INSTRUMENTS	7. FINANCIAL INSTRUMENTS 7.1. Non-derivative Recognition and initial measurement Trade receivables are initially recognised when they are originated. All other financial assets and financial liabilities are initially recognised when the Group becomes a party to the contractual provisions of the instrument. A financial asset or financial liability is initially measured at fair value plus, for an item not at Fair Value through Profit or Loss (“FVTPL”), transaction costs that are directly attributable to its acquisition or issue. A trade receivable without a significant financing component is initially measured at the transaction price. Classification and subsequent measurement Financial assets – Classification policy On initial recognition, a financial asset is classified as measured at: • Amortised cost; • Fair Value through Other Comprehensive Income (“FVOCI”); or • FVTPL. A financial asset is measured at amortised cost if it meets both of the following conditions and is not designated as at FVTPL: • it is held with a business model whose objective is to collect contractual cash flows; and • its contractual terms give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. An investment is measured at FVOCI if it meets both of the following conditions and is not designated as at FVTPL: • it is held with a business model whose objective is achieved by both collecting contractual cash flows and selling financial assets; and • its contractual terms give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. All financial assets not classified as measured at amortised cost or FVOCI as described above are measured at FVTPL. This includes all derivative financial assets. Financial assets - Measurement policy Financial asset Description Financial assets at amortised cost These assets are subsequently measured at amortised cost using the effective interest method. The amortised cost is reduced by impairment losses. Interest income, foreign exchange gains and losses and impairment are recognised in profit or loss. Any gain or loss on derecognition is recognised in profit or loss. Equity investments at FVOCI These assets are subsequently measured at fair value. Dividends are recognised as income in profit or loss unless the dividend clearly represents a recovery of part of the cost of the investment. Other net gains and losses are recognised in OCI and are never reclassified to profit or loss. Financial assets at FVTPL These assets are subsequently measured at fair value. Net gains and losses, including any interest or dividend income, are recognised in profit or loss. Financial assets – Classification of financial assets The following information is considered by the Group in determining the classification of financial assets: • the Group’s business model for managing financial assets; and • the contractual cash flow characteristics of the financial assets. The business model assessment of the financials assets is based on the Group’s strategy and rationale for holding the financial assets on a portfolio level. When considering the strategy, the following is considered: • whether the financial assets are held to collect contractual cash flows; • whether the financial assets are held for sale; or • whether the financial assets are held for both collecting contractual cash flows and to be sold. Financial assets - Assessment of contractual cash flows In assessing whether the contractual cash flows are solely payments of principal and interest, the Group considers the contractual terms of the instrument. This includes assessing whether the financial asset contains a contractual term that could change the timing or amount of contractual cash flows such that it would not meet this condition. Financial liabilities - Classification, subsequent measurement and gains and losses Financial liabilities are classified as measured at amortised cost or FVTPL. A financial liability is classified as at FVTPL if it is classified as held-for-trading, Impairment The Group recognises loss allowances for expected credit losses (“ECLs”) on financial assets measured at amortised cost. When determining whether the credit risk of a financial asset has increased significantly since initial recognition and when estimating ECLs, the Group considers reasonable and supportable information that is relevant and available without undue cost or effort. This includes both quantitative and qualitative information and analysis, based on the Group’s historical experience and informed credit assessment and including forward-looking information. The maximum period considered when estimating ECLs is the maximum contractual period over which the Group is exposed to credit risk. ECLs are a probability-weighted estimate of credit losses. Credit losses are measured as the present value of all cash shortfalls (i.e. the difference between the cash flows due to the entity in accordance with the contract and the cash flows that the Group expects to receive). At each reporting date, the Group assesses whether financial assets carried at amortised cost are credit impaired. A financial asset is ‘credit-impaired’ when one or more events that have a detrimental impact on the estimated future cash flows of the financial asset have occurred. Derecognition of financial instruments The Group derecognises a financial asset when the contractual rights to the cash flows from the financial asset expire, or it transfers the rights to receive the contractual cash flows in a transaction in which substantially all of the risks and rewards of ownership of the financial asset are transferred or in which the Group neither transfers nor retains substantially all of the risks and rewards of ownership and it does not retain control of the financial asset. The Group derecognises a financial liability when its contractual obligations are discharged or cancelled, or expire. The Group also derecognises a financial liability when its terms are modified and the cash flows of the modified liability are substantially different, in which case a new financial liability based on the modified terms is recognised at fair value. On derecognition of a financial liability, the difference between the carrying amount extinguished and the consideration paid (including any non-cash 7.1.1. Investments Investments comprise listed and unlisted investments which are designated at FVOCI and are accounted for at fair value, with unrealised gains and losses subsequent to initial recognition recognised in other comprehensive income and included in other reserves. Profit or loss realised when investments are sold or impaired are never reclassified to profit or loss. Purchases and sales of investments are recognised on the trade date, which is the date that the Group commits to purchase or sell the asset. Cost of purchase includes transaction costs. The fair value of listed investments is based on quoted bid prices. On disposal or impairment of financial assets classified at FVOCI, cumulative unrealised gains and losses previously recognised in other comprehensive income are included in determining the profit or loss on disposal, or the impairment charge relating to, that financial asset, respectively, which is recognised in other comprehensive income. 7.1.2. Cash and cash equivalents Cash and cash equivalents comprise cash on hand, demand deposits and short-term, highly liquid investments readily convertible to known amounts of cash and subject to insignificant risk of changes in value and are measured at amortised cost which is deemed to be fair value as they have a short-term maturity. Bank overdrafts are included within current liabilities in the statement of financial position and within cash and cash equivalents in the statement of cash flows. 7.1.3. Trade receivables Trade receivables are carried at amortised cost less ECLs using the Group’s business model for managing its financial assets, except for trade receivables from provisional copper and gold concentrate. The trade receivables from provisional copper and gold concentrate sales are carried at fair value through profit or loss and are marked-to-market 7.1.4. Environmental trust funds The environmental trust funds comprise mainly term deposits which are recognised at amortised cost less ECLs using the Group’s business model for managing its financial assets. 7.1.5. Trade payables Trade payables are recognised at amortised cost using the effective interest method. 7.1.6. Borrowings Borrowings are recognised initially at fair value, net of transaction costs incurred, where applicable and subsequently measured at amortised cost using the effective interest method. Borrowings are classified as current liabilities unless the Group has an unconditional right to defer settlement of the liability for at least 12 months after the reporting date. Interest payable on borrowings is recognised in profit or loss over the term of the borrowings using the effective interest method. Finance expense comprises interest on borrowings and environmental rehabilitation costs offset by interest capitalised on qualifying assets. Cash flows from interest paid are classified under operating activities in the statement of cash flows. 7.2. Derivative financial instruments The Group may from time to time establish currency and/or interest rate and/or commodity financial instruments to protect underlying cash flows. Derivative financial instruments are initially recognised at fair value and subsequently re-measured
PROVISIONS	8. PROVISIONS Provisions are recognised when the Group has a present legal or constructive obligation resulting from past events and it is probable that an outflow of resources embodying economic benefits will be required to settle the obligation and a reliable estimate can be made of the amount of the obligation.
PROVISION FOR ENVIRONMENTAL REHABILITATION COSTS	9. PROVISION FOR ENVIRONMENTAL REHABILITATION COSTS Long-term provisions for environmental rehabilitation costs are based on the Group’s environmental management plans, in compliance with applicable environmental and regulatory requirements. Rehabilitation work can include facility decommissioning and dismantling, removal or treatment of waste materials, site and land rehabilitation, including compliance with and monitoring of environmental regulations, security and other site-related costs required to perform the rehabilitation work and operations of equipment designed to reduce or eliminate environmental effects. Full provision is made based on the net present value of the estimated cost of restoring the environmental disturbance that has occurred up to the reporting date. The unwinding of the obligation is accounted for in profit or loss. The estimated costs of rehabilitation are reviewed annually and adjusted as appropriate for changes in legislation, technology or other circumstances. Cost estimates are not reduced by the potential proceeds from the sale of assets or from plant clean up at closure. Changes in estimates are capitalised or reversed against the relevant asset, except where a reduction in the provision is greater than the remaining net book value of the related asset, in which case the value is reduced to nil and the remaining adjustment is recognised in profit or loss. In the case of closed sites, changes in estimates and assumptions are recognised in profit or loss. Estimates are discounted at the pre-tax Increases due to additional environmental disturbances are capitalised and amortised over the remaining lives of the mines. These increases are accounted for on a net present value basis. For the South African and Ghanaian operations, annual contributions are made to a dedicated rehabilitation trust fund and dedicated bank account, respectively, to fund the estimated cost of rehabilitation during and at the end of the life-of-mine. non-current In respect of the South African, Ghanaian and Peruvian operations, bank and other guarantees are provided for funding of the environmental rehabilitation obligations. Refer to financial instruments accounting policy—Environmental trust fund .
EMPLOYEE BENEFITS	10. EMPLOYEE BENEFITS 10.1. Short-term employee benefits Short-term employee benefits are expensed as the related service is provided. A liability is recognised for the amount expected to be paid if the Group has a present legal or constructive obligation to pay this amount as a result of past service provided by the employee and the obligation can be estimated reliably. 10.2. Pension and provident funds The Group operates a defined contribution retirement plan and contributes to a number of industry-based defined contribution retirement plans. The retirement plans are funded by payments from employees and Group companies. Contributions to defined contribution funds are recognised as an employee benefit expense in profit or loss in the periods during which related services are rendered by employees. 10.3. Share-based payments The Group operates a number of equity-settled compensation plans. The fair value of the equity-settled instruments is measured by reference to the fair value of the equity instrument granted which in turn is determined using the Black-Scholes and Monte Carlo simulation models on the date of grant. Fair value is based on market prices of the equity-settled instruments granted, if available, taking into account the terms and conditions upon which those equity-settled instruments were granted. Fair value of equity-settled instruments granted is estimated using appropriate valuation models and appropriate assumptions at grant date. Non-market The fair value of the equity-settled instruments is recognised as an employee benefit expense over the vesting period based on the Group’s estimate of the number of instruments that will eventually vest, with a corresponding increase in equity. Vesting assumptions for non-market Where the terms of an equity-settled award are modified, the originally determined expense is recognised as if the terms had not been modified. In addition, an expense is recognised for any modification, which increases the total fair value of the share-based payment arrangement, or is otherwise beneficial to the participant as measured at the date of the modification. 10.4. Long-term incentive plan The Group operates a long-term incentive plan. The Group’s net obligation in respect of the long-term incentive plan is the amount of future benefit that employees have earned in return for their services in the current and prior periods. That benefit is estimated using appropriate assumptions and is discounted to determine its present value at each reporting date. Re-measurements 10.5. Termination benefits Termination benefits are payable when employment is terminated by the Group before the normal retirement date, or whenever an employee accepts voluntary redundancy in exchange for these benefits. Termination benefits are expensed at the earlier of the date the Group can no longer withdraw the offer of those benefits or the date the Group recognises costs for a restructuring. Benefits falling due more than 12 months after the reporting date are discounted to present value.
STATED CAPITAL	11. STATED CAPITAL 11.1. Ordinary share capital Ordinary shares are classified as equity. Incremental costs directly attributable to the issue of ordinary shares are recognised as a deduction from equity, net of any tax effects. 11.2. Repurchase and reissue of share capital When share capital recognised as equity is repurchased, the amount of the consideration paid, which includes directly attributable costs, net of any tax effects, is recognised as a deduction from equity. Repurchased shares are classified as treasury shares and are deducted from equity. When treasury shares are sold or reissued subsequently, the amount received is recognised as an increase in equity, and the resulting surplus or deficit on the transaction is presented in share premium.
REVENUE FROM CONTRACTS WITH CUSTOMERS	12. REVENUE FROM CONTRACTS WITH CUSTOMERS The Group recognises revenue when control over its gold, copper and silver is transferred to the customer. The price is determined by market forces (gold price and exchange rates). Revenue is measured based on the consideration specified in a contract with the customer. Customers obtain control of gold, copper and silver on the settlement date and there are no payment terms except for copper and gold concentrate sales in Peru. In Peru, customers obtain control of copper and gold concentrate on the shipment date. Copper and gold concentrate revenue is calculated, net of refining and treatment charges, on a best estimate basis on shipment date, using forward metal prices to the estimated final pricing date, adjusted for the specific terms of the agreements. Variations between the price recorded at the shipment date and the actual final price received are caused by changes in prevailing copper and gold prices. Changes in the fair value as a result of changes in the forward metal prices are classified as provisional price adjustments and included as a component of revenue.
INVESTMENT INCOME	13. INVESTMENT INCOME Investment income comprises interest income on funds invested and dividend income from listed and unlisted investments. Investment income is recognised to the extent that it is probable that economic benefits will flow to the Group and the amount of investment income can be reliably measured. Investment income is stated at the fair value of the consideration received or receivable. 13.1. Dividend income Dividends are recognised in profit or loss when the right to receive payment is established. 13.2. Interest income Interest income is recognised in profit or loss using the effective interest rate method. The effective interest rate is the rate that exactly discounts estimated future cash payments or receipts through the expected life of the financial instrument to the gross carrying amount of the financial asset or amortised cost of the financial liability. Cash flows from dividends and interest received are classified under operating activities in the statement of cash flows.
DIVIDENDS DECLARED	14. DIVIDENDS DECLARED Dividends and the related taxation thereon are recognised only when such dividends are declared. Dividends withholding tax is a tax on shareholders receiving dividends and is applicable to all dividends paid. The Group withholds dividends tax on behalf of its shareholders at a rate of 20% on dividends paid. Amounts withheld are not recognised as part of the Group’s tax charge but rather as part of the dividend paid recognised directly in equity. Cash flows from dividends paid are classified under operating activities in the statement of cash flows.
EARNINGS PER SHARE	15. EARNINGS PER SHARE The Group presents basic and diluted earnings per share. Basic earnings per share is calculated based on the profit attributable to ordinary shareholders divided by the weighted average number of ordinary shares in issue during the period. Diluted earnings per share is determined by adjusting the profit attributable to ordinary shareholders, if applicable, and the weighted average number of ordinary shares in issue for ordinary shares that may be issued in the future.
NON-CURRENT ASSETS HELD FOR SALE	16. NON-CURRENT Non-current non-current Non-current
SEGMENTAL REPORTING	17. SEGMENTAL REPORTING Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision-maker (“CODM”) and is based on individual mining operations. The chief operating decision-maker, who is responsible for allocating resources and assessing performance of the operating segments, has been identified as the Executive Committee that makes strategic decisions.
HEADLINE EARNINGS	18. HEADLINE EARNINGS Headline earnings is an additional earnings number that is permitted by IAS 33 Earnings per Share re-measurements non-controlling re-measurements re-measurement re-measurement

Accounting Policies (Tables)

Accounting Policies (Tables)	12 Months Ended
Accounting Policies (Tables)	Dec. 31, 2019
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Summary of Significant Assumptions Used in Group's Impairment Assessments (FVLCOD calculations)	Significant assumptions used in the Group’s impairment assessments (FVLCOD calculations) include: 2019 2018 US$ Gold price per ounce – year 1 US$ 1,500 US$ 1,200 US$ Gold price per ounce – year 2 and 3 US$ 1,400 US$ 1,300 US$ Gold price per ounce – year 4 onwards US$ 1,350 US$ 1,300 Rand Gold price per kilogram – year 1 R 700,000 R 525,000 Rand Gold price per kilogram – year 2 and 3 R 650,000 R 550,000 Rand Gold price per kilogram – year 4 onwards R 630,000 R 550,000 A$ Gold price per ounce – year 1 A$ 2,150 A$ 1,600 A$ Gold price per ounce – year 2 and 3 A$ 1,970 A$ 1,700 A$ Gold price per ounce – year 4 onwards A$ 1,850 A$ 1,700 US$ Copper price per tonne – year 1 US$ 5,730 US$ 5,951 US$ Copper price per tonne – year 2 and 3 US$ 6,612 US$ 6,612 US$ Copper price per tonne – year 4 onwards US$ 6,612 US$ 6,612 Resource value per ounce (used to calculate the value beyond proved and probable reserves) • South Africa (with infrastructure) US$ 16 US$ 17 • Ghana (with infrastructure) US$ 70 US$ 44 • Peru (with infrastructure) US$ 34 US$ 70 • Australia (with infrastructure) US$ 77 US$ 28 Discount rates • South Africa – nominal 14.1 % 13.5 % • Ghana – real 8.5 % 9.5 % • Peru – real 5.0 % 4.9 % • Australia – real 3.5 % 3.4 % Inflation rate – South Africa1 5.3 % 5.5 % Life-of-mine • South Deep 75 years 75 years • Tarkwa 14 years 14 years • Damang 6 years 7 years • Cerro Corona 13 years 12 years • St Ives 9 years 7 years • Agnew 4 years 4 years • Granny Smith 13 years 12 years • Gruyere 11 years 12 years Long-term exchange rates US$/ZAR – year 1 14.50 13.61 US$/ZAR – year 2 onwards 14.50 13.16 A$/US$ – year 1 0.70 0.75 A$/US$ – year 2 and 3 0.71 0.76 A$/US$ – year 4 onwards 0.73 0.76 1 Due to the availability of unredeemed capital for tax purposes over several years into the life of the South Deep mine, nominal cash flows are used for South Africa. In order to determine nominal cash flows in South Africa, costs are inflated by the current South African inflation rate. Cash flows for all other operations are in real terms and as a result are not inflated.

Revenue (Tables)

Revenue (Tables)	12 Months Ended
Revenue (Tables)	Dec. 31, 2019
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Summary of Revenue from Contracts with Customers	UNITED STATES DOLLAR 2019 2018 2017 1. REVENUE Revenue from contracts with customers 2,967.1 2,577.8 2,761.8 - Gold¹ 2,802.0 2,408.6 2,584.0 - Copper² 165.1 169.2 177.8 Disclosure of disaggregated revenue from contracts with customers The Group generates revenue primarily from the sale of gold bullion and copper concentrate to refineries and banks. All revenue from contracts with customers is recognised at a point in time. The Group also produces silver which is an insignificant by-product. The disaggregation of revenue from contracts with customers by primary geographical market and product is described in the segment note (note 43). ¹ All regions. ² Only Peru region (Cerro Corona).

Cost of Sales (Tables)

Cost of Sales (Tables)	12 Months Ended
Cost of Sales (Tables)	Dec. 31, 2019
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Summary of Cost of Sale	2. COST OF SALES Salaries and wages (334.8 ) (392.8 ) (414.7 ) Consumable stores (270.4 ) (280.0 ) (346.7 ) Utilities (131.5 ) (148.3 ) (150.1 ) Mine contractors (511.0 ) (365.3 ) (307.4 ) Other (218.8 ) (204.4 ) (207.6 ) Cost of sales before gold inventory change and amortisation and depreciation (1,466.5 ) (1,390.8 ) (1,426.5 ) Gold inventory change 43.0 16.2 69.5 Cost of sales before amortisation and depreciation (1,423.5 ) (1,374.6 ) (1,357.0 ) Amortisation and depreciation (610.0 ) (668.4 ) (748.1 ) Total cost of sales (2,033.5 ) (2,043.0 ) (2,105.1 )

Investment Income (Tables)

Investment Income (Tables)	12 Months Ended
Investment Income (Tables)	Dec. 31, 2019
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Schedule of Investment Income	3. INVESTMENT INCOME Dividends received — 0.4 — Interest received - environmental trust funds 0.7 0.6 0.5 Interest received - cash balances 6.6 6.8 5.1 Total investment income 7.3 7.8 5.6

Finance Expense (Tables)

Finance Expense (Tables)	12 Months Ended
Finance Expense (Tables)	Dec. 31, 2019
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Summary of Finance Expense	4. FINANCE EXPENSE Interest expense - environmental rehabilitation (11.7 ) (11.7 ) (12.1 ) Unwinding of discount rate on silicosis settlement costs (1.3 ) (2.0 ) (0.9 ) Interest expense - lease liabilities (2018: finance lease liabilities) (18.6 ) (0.2 ) — Interest expense - borrowings (114.0 ) (91.6 ) (91.2 ) Borrowing costs capitalised 3 43.4 17.5 22.9 Total finance expense (102.2 ) (88.0 ) (81.3 ) 3 Borrowing costs capitalised of US$43.4 million comprise borrowing costs relating to general borrowings of US$31.0 million and specific borrowings of US$12.4 million. The specific borrowings of US$12.4 million relate to the Gruyere project and are included in additions to property, plant and equipment of US$612.5 million (refer note 13).

Share-Based Payments (Tables)

Share-Based Payments (Tables)	12 Months Ended
Share-Based Payments (Tables)	Dec. 31, 2019
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Summary of Share-based Payment Arrangements Information	The following information is available for each plan: UNITED STATES DOLLAR 2019 2018 2017 Continuing Continuing Continuing Discontinued (a) Gold Fields Limited 2005 Share Plan — — — — (b)(i) Gold Fields Limited 2012 Share Plan - Performance Shares — — — — - Bonus Shares — — — — (b)(ii) Gold Fields Limited 2012 Share Plan amended - Performance Shares 18.8 34.7 24.5 0.6 - Retention Shares 1.4 2.5 2.1 — - Restricted/Matching Shares 0.3 0.3 0.2 — Total included in profit or loss for the year 20.5 37.5 26.8 0.6
Summary of Movement of Share Options	The following table summarises the movement of share options under the Gold Fields Limited 2005 Share Plan during the years ended 31 December 2018 and 2017: 2018 2017 Share Average Share Average Outstanding at beginning of the year 11,521 9.42 530,611 7.39 Movement during the year: Forfeited (11,521 ) 9.42 (519,090 ) 7.75 Outstanding at end of the year (vested) — — 11,521 9.42 2017 Performance Outstanding at beginning of the year 393,178 Movement during the year: Forfeited (393,178 ) Outstanding at end of the year —
Summary of Share Based Payment Performance Condition	Performance condition Weighting Threshold Target Stretch and cap Absolute Total Shareholder Return (“TSR”) 33 % N/A - No vesting below target Compounded cost of equity in real terms over three-year performance period Compounded cost of equity in real terms over three-year performance period +6% per annum Relative TSR 33 % Median of the peer group Linear vesting to apply between median and upper quartile performance and capped at upper quartile performance Free cash flow margin (“FCFM”) 34 % Average FCFM over performance period of 5% at a gold price of $1,200/oz for the 2019 allocation (2017 and 2018 allocations: $1,300/oz) - margin to be adjusted relative to the actual gold price for the three-year period Average FCFM over performance period of 15% at a gold price of $1,200/oz for the 2019 allocation (2017 and 2018 allocations: $1,300/oz) - margin to be adjusted relative to the actual gold price for the three-year period Average FCFM over performance period of 20% at a gold price of $1,200/oz for the 2019 allocation (2017 and 2018 allocations: $1,300/oz) - margin to be adjusted relative to the actual gold price for the three-year period
Summary of Vesting Profile	The vesting profile will be as follows: Performance condition Threshold Target Stretch and cap Absolute TSR 1,4 0 % 100 % 200 % Relative TSR 1,3,4 0 % 100 % 200 % FCFM 2 0 % 100 % 200 % 1 Absolute TSR and relative TSR: Linear vesting will occur between target and stretch (no vesting occurs for performance below target). 2 FCFM: Linear vesting will occur between threshold, target and stretch. 3 The peer group consists of 10 companies: Anglogold Ashanti, Goldcorp, Barrick, Eldorado Gold, Randgold, Yamana, Agnico Eagle, Kinross, Newmont and Newcrest. During 2019, Randgold merged with Barrick and Goldcorp merged with Newmont. The peer group will remain at 10 companies by maintaining phantom share tracking for Randgold and Goldcorp based on their respective merger ratios at the date of the merger. 4 TSR will be calculated as the compounded annual growth rate (“CAGR”) of the TSR index between the average of the 60 trading days up to the first day of the performance period and the average of the 60 trading days up to the last day of the performance period. TSR will be defined as the return on investing in ordinary shares in the Company at the start of the performance period, holding the shares and reinvesting the dividends received on the portfolio in Gold Fields shares over the performance period. The USD TSR index, provided by external service providers will be based on the USD share price.
Summary of Movement of Share Options Under Gold Fields Limited 2012 Share Plan	The following table summarises the movement of share options under the Gold Fields Limited 2012 Share Plan as amended in 2016 during the years ended 31 December 2019, 2018 and 2017: 2019 2018 2017 Performance Performance Performance Outstanding at beginning of the year 18,361,977 18,279,130 8,138,472 Movement during the year: Granted 4,558,177 811,829 11,744,152 Exercised and released (6,611,023 ) — (34,827 ) Forfeited (1,475,741 ) (728,982 ) (1,568,667 ) Outstanding at end of the year 14,833,390 18,361,977 18,279,130
Summary of Fair Value of Equity Instruments Granted	2019 2018 2017 The fair value of equity instruments granted during the year ended 31 December 2019, 2018 and 2017 were valued using the Monte Carlo simulation model: Monte-Carlo simulation Performance shares The inputs to the model for options granted during the year were as follows: - weighted average historical volatility (based on a statistical analysis of the share price on a weighted moving average basis for the expected term of the option) 44.7 % 58.6 % 64.3 % - expected term (years) 3 years 3 years 3 years - dividend yield 1 n/a n/a n/a - weighted average three-year risk free interest rate (based on US interest rates) 1.4 % 2.0 % 1.6 % - weighted average fair value (United States dollars) 5.7 5.0 4.2 1 There is no dividend yield applied to the Monte Carlo simulation model as the performance conditions follow a total shareholder return method.

Impairment, Net of Reversal o_2

Impairment, Net of Reversal of Impairment of Investments and Assets (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Impairment, Net of Reversal of Impairment of Investments and Assets	UNITED STATES DOLLAR 2019 2018 2017 6. IMPAIRMENT, NET OF REVERSAL OF IMPAIRMENT OF INVESTMENTS AND ASSETS Investments (9.6 ) (36.9 ) (3.7 ) Listed investments — — (0.5 ) Unlisted investments — — (3.2 ) Equity accounted investees - Far Southeast Gold Resources Incorporated (“FSE”) 1 (9.6 ) (36.9 ) — Property, plant and equipment (0.2 ) (411.7 ) 81.3 Reversal of impairment of Arctic Platinum (“APP”) 2 — — 39.0 (Impairment)/reversal of impairment of property, plant and equipment - other 3 (0.2 ) (1.9 ) 42.3 South Deep cash-generating unit 4 — (409.8 ) — Goodwill — (71.7 ) (277.8 ) South Deep goodwill 4 — (71.7 ) (277.8 ) Impairment, net of reversal of impairment of investments and assets (9.8) (520.3) (200.2) ¹ Following the identification of impairment indicators during 2018 and 2019, FSE was valued at its recoverable amount which resulted in a net impairment of US$36.9 million and US$9.6 million, respectively. The recoverable amount was based on the fair value less cost of disposal (“FVLCOD”) of the investment (level 2 in the fair value hierarchy). The FVLCOD was indirectly derived from the market value of Lepanto Consolidated Mining Company, being the 60% shareholder of FSE. The net impairment is included in the “Corporate and other” segment. 2 Following the Group’s decision during 2013 to dispose of non-core year-end. 3 (Impairment)/reversal of impairment of property, plant and equipment - other is made up as follows: UNITED STATES DOLLAR 2019 2018 2017 - Redundant assets at Cerro Corona (0.2) (1.9) (0.8) - Reversal of cash-generating unit impairment at Cerro Corona — — 53.4 (An impairment of US$66.4 million was recognised in 2016 due to the reduction in gold and copper reserves due to depletion, a decrease in the gold and copper price assumptions for 2017 and 2018, a lower resource price and an increase in the Peru tax rate. The reversal of the impairment in 2017 of US$53.4 million was due to a higher value-in-use pre-feasibility life-of-mine in-pit - Asset-specific impairment at Tarkwa — — (6.8 ) (Relating to aged, high maintenance and low effectiveness mining fleet that is no longer used). - Asset-specific impairment at Damang — — (3.5 ) (Relating to all assets at the Rex pit. Following a series of optimisations, the extensional drilling failed to deliver sufficient tonnages at viable grades to warrant further work). (Impairment)/reversal of impairment of property, plant and equipment - other (0.2 ) (1.9 ) 42.3 4 For the year ended 31 December 2019, the Group recognised an impairment of Rnil (US$nil) (2018: R6,470.9 million (US$481.5 million) and 2017: R3,495.0 billion (US$277.8 million)) in respect of the South Deep cash-generating unit due to the deferral of production. Rnil (US$nil) (2018: R963.9 million (US$71.7 million) and 2017: R3,495.0 billion (US$277.8 million)) of the total impairment was firstly allocated against goodwill and the remainder of Rnil (US$nil) (2018: R5,507.0 million (US$409.8 million) and 2017: Rnil (US$nil)) against other assets. The recoverable amount was based on its FVLCOD calculated using a combination of the market and the income approach (level 3 of the fair value hierarchy).

Included in Profit_(Loss) Bef_2

Included in Profit/(Loss) Before Royalties and Taxation (Tables)	12 Months Ended
	Dec. 31, 2019
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Schedule of Amounts Included in (Loss)/Profit Before Royalties and Taxation	UNITED STATES DOLLAR 2019 2018 2017 7. INCLUDED IN PROFIT/(LOSS) BEFORE ROYALTIES AND TAXATION ARE THE FOLLOWING: Operating lease charges 1 — (2.3 ) (2.4 ) Damang - contract termination 1,2 (13.1 ) — — Loss on buy-back 1 (5.0 ) — — Social contributions and sponsorships 1 (18.0 ) (15.1 ) (19.6 ) Loss on sale of inventory 1,3 — (8.9 ) — Rehabilitation (expense)/income 1 (13.4 ) 0.9 13.5 Restructuring costs 4 (0.6 ) (113.9 ) (9.2 ) 1 Included under “Other costs, net” in the consolidated income statement. 2 Refer note 12.2 for further details. 3 The loss on sale of inventory related to the sale of inventory at Tarkwa as part of the transition to contractor mining. 4 The restructuring costs in 2019 comprise mainly separation packages at South Deep amounting to US$0.3 million (2018: US$11.2 million and 2017: US$2.3 million), Damang amounting to US$nil (2018: US$13.9 million and 2017: US$2.2 million) and Tarkwa amounting to US$0.3 million (2018: US$88.8 million and 2017: US$4.7 million). The restructuring costs of US$88.8 million at Tarkwa in 2018 related to the transition to contractor mining.

Royalties (Tables)

Royalties (Tables)	12 Months Ended
Royalties (Tables)	Dec. 31, 2019
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Summary of Royalties	8. ROYALTIES South Africa (1.6 ) (1.0 ) (1.8 ) Foreign (72.1 ) (61.5 ) (60.2 ) Total royalties (73.7 ) (62.5 ) (62.0 ) Royalty rates South Africa (effective rate) 5 0.5 % 0.5 % 0.5 % Australia 6 2.5 % 2.5 % 2.5 % Ghana 7 3.5 % 3.0 % 3.0 % Peru 8 3.6 % 4.0 % 4.6 % 5 The Mineral and Petroleum Resource Royalty Act 2008 (“Royalty Act”) was promulgated on 24 November 2008 and became effective from 1 March 2010. The Royalty Act imposes a royalty on refined (mineral resources that have undergone a comprehensive level of beneficiation such as smelting and refining as defined in Schedule 1 of the Act) and unrefined (mineral resources that have undergone limited beneficiation as defined in Schedule 2 of the Act) minerals payable to the state. The royalty in respect of refined minerals (which include gold refined to 99.5% and above and platinum) is calculated by dividing earnings before interest and taxes (“EBIT”) by the product of 12.5 times gross revenue calculated as a percentage, plus an additional 0.5%. EBIT refers to taxable mining income (with certain exceptions such as no deduction for interest payable and foreign exchange losses) before assessed losses but after capital expenditure. A maximum royalty of 5% has been introduced on refined minerals. The effective rate of royalty tax payable for the year ended 31 December 2019 was 0.5% of mining revenue (2018: 0.5% and 2017: 0.5%) equalling the minimum charge per the formula. 6 The Australian operations are subject to a 2.5% (2018: 2.5% and 2017: 2.5%) gold royalty on revenue as the mineral rights are owned by the state. 7 Minerals are owned by the Republic of Ghana and held in trust by the President. During 2016, Gold Fields signed a Development Agreement (“DA”) with the Government of Ghana for both the Tarkwa and Damang mines. This agreement stated that the Ghanaian operations will be subject to a sliding scale for royalty rates, linked to the prevailing gold price (effective 1 January 2017). The sliding scale is as follows: Average gold price Low value High value Royalty rate US$0.00 - US$1,299.99 3.0 % US$1,300.00 - US$1,449.99 3.5 % US$1,450.00 - US$2,299.99 4.1 % US$2,300.00 - Unlimited 5.0 % 8 The Peruvian operations are subject to a mining royalty calculated on a sliding scale with rates ranging from 1% to 12% of the value of operating profit.

Mining and Income Taxation (Tab

Mining and Income Taxation (Tables)	12 Months Ended
Mining and Income Taxation (Tables)	Dec. 31, 2019
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Summary of Components of Mining and Income Tax	UNITED STATES DOLLAR 2019 2018 2017 9. MINING AND INCOME TAXATION The components of mining and income tax are the following: South African taxation - non-mining — — (1.2 ) - company and capital gains taxation (2.9 ) (1.1 ) (1.1 ) - prior year adjustment - current taxation 0.2 0.7 0.2 - deferred taxation (0.3 ) 208.5 12.1 Foreign taxation - current taxation (184.1 ) (127.9 ) (199.8 ) - dividend withholding tax (2.7 ) (13.7 ) — - prior year adjustment - current taxation (1.1 ) (3.7 ) (2.8 ) - deferred taxation 15.3 3.1 19.4 Total mining and income taxation (175.6 ) 65.9 (173.2 ) Major items causing the Group’s income taxation to differ from the maximum South African statutory mining tax rate of 34.0% (2018: 34.0% and 2017: 34.0%) were: Taxation on profit before taxation at maximum South African statutory mining tax rate (119.1 ) 139.6 (51.8 ) Rate adjustment to reflect the actual realised company tax rates in South Africa and offshore 17.9 (6.7 ) 19.2 Non-deductible (7.0 ) (12.8 ) (9.1 ) Non-deductible (17.0 ) (22.1 ) (19.7 ) Deferred tax assets not recognised on impairment and reversal of impairment of investments 1 (3.3 ) (12.5 ) 13.3 Impairment of South Deep goodwill — (24.4 ) (94.5 ) Non-deductible (29.9 ) (25.5 ) (24.2 ) Share of results of equity accounted investees, net of taxation 1.1 (4.5 ) (0.4 ) Non-taxable — 17.6 — Non-taxable 1.4 1.3 — Non-taxable 5.0 1.4 — Dividend withholding tax (2.9 ) (15.5 ) — Net non-deductible non-taxable (10.5 ) (7.6 ) (5.3 ) Deferred tax on unremitted earnings at Tarkwa and Cerro Corona (2018: Tarkwa and Cerro Corona and 2017: Tarkwa) (4.5 ) (1.1 ) (9.5 ) Deferred taxation movement on Peruvian Nuevo Sol devaluation against US dollar 2 0.1 (1.2 ) 5.2 Various Peruvian non-deductible (6.6 ) (7.5 ) (5.3 ) Deferred tax assets not recognised at Cerro Corona 3 (3.3 ) (14.9 ) (12.9 ) Utilisation of tax losses not previously recognised at Damang — — 7.1 Deferred tax assets recognised at Damang (2017: Cerro Corona and Damang) 4 — 6.5 19.8 Additional capital allowances recognised at South Deep 5 — 69.8 — Deferred tax charge on change of tax rate at South Deep — (10.9 ) — Prior year adjustments (1.0 ) (3.0 ) (2.6 ) Other 4.0 (0.1 ) (2.5 ) Total mining and income taxation (175.6 ) 65.9 (173.2 ) 1 Deferred tax assets not recognised on impairment of investments relate to the impairment of FSE (2017: reversal of impairment of APP). Refer to note 6 for details of impairments. 2 The functional currency of Cerro Corona is US dollar, however, the Peruvian tax base is based on values in Peruvian Nuevo Sol. 3 Deferred tax assets amounting to US$3.3 million (2018: US$14.9 million and 2017: US$12.9 million) were not recognised during the year at Cerro Corona to the extent that there is insufficient future taxable income available. Deferred tax assets were not recognised during the year related to deductible temporary differences on additions to fixed assets in the current financial year that would only reverse after the end of the life-of-mine 4 Due to year-end pre-feasibility life-of-mine 5 During 2014, the South African Revenue Services (“SARS”) issued a Finalisation of Audit Letter (“the Audit Letter”) stating that SARS had disallowed US$182.2 million of GFIJVH’s gross recognised capital allowance of US$925.5 million. On 30 May 2018, GFIJVH and SARS entered into a confidential settlement agreement (as provided for in the Tax Administration Act) in full and final settlement of this matter. As a result of the settlement GFIJVH recognised an additional US$185.1 million of capital allowances with a tax effect on this amount of US$53.7 million. Refer note 35 on Contingent Liabilities for further details.
Summary of Domestic and Foreign Current Tax Rates	2019 2018 2017 South Africa - current tax rates Mining tax 1 Y = 34 - 170/X Y = 34 - 170/X Y = 34 - 170/X Non-mining 2 28.0 % 28.0 % 28.0 % Company tax rate 28.0 % 28.0 % 28.0 % International operations - current tax rates Australia 30.0 % 30.0 % 30.0 % Ghana 32.5 % 32.5 % 32.5 % Peru 29.5 % 29.5 % 29.5 % 1 South African mining tax on mining income is determined according to a formula which takes into account the profit and revenue from mining operations. South African mining taxable income is determined after the deduction of all mining capital expenditure, with the proviso that this cannot result in an assessed loss. Capital expenditure amounts not deducted are carried forward as unredeemed capital expenditure to be deducted from future mining income. Accounting depreciation is ignored for the purpose of calculating South African mining taxation. The effective mining tax rate for Gold Fields Operations Limited (“GFO”) and GFI Joint Venture Holdings (Proprietary) Limited (“GFIJVH”), owners of the South Deep mine, has been calculated at 29% (2018: 29% and 2017: 30%). In the formula above, Y is the percentage rate of tax payable and X is the ratio of mining profit, after the deduction of redeemable capital expenditure, to mining revenue expressed as a percentage. 2 Non-mining
Summary of Estimated Available for Set-off Against Future Income Pre Tax	At 31 December 2019, the Group had the following estimated amounts available for set-off (pre-tax): 2019 2018 Gross unredeemed capital expenditure US$ million Gross tax losses US$ million Gross tax losses recognised US$ million Gross Gross Gross losses South Africa 1 Gold Fields Operations Limited 681.2 196.2 — 638.0 206.4 — GFI Joint Venture Holdings (Proprietary) Limited 2 1,062.6 21.7 — 1,003.1 41.0 — Gold Fields Group Services (Pty) Limited — — — — 1.3 — 1,743.8 217.9 — 1,641.1 248.7 — International operations Exploration entities 3 — 337.7 337.7 — 430.0 430.0 Abosso Goldfields Limited 4 — 176.7 — — 80.9 — — 514.4 337.7 — 510.9 430.0 1 These deductions are available to be utilised against income generated by the relevant tax entity and do not expire unless the tax entity concerned ceases to operate for a period of longer than one year. Under South African mining tax ring-fencing legislation, each tax entity is treated separately and as such these deductions can only be utilised by the tax entities in which the deductions have been generated. South African tax losses and unredeemed capital expenditure have no expiration date. 2 During 2014, the South African Revenue Services (“SARS”) issued a Finalisation of Audit Letter (“the Audit Letter”) stating that SARS had disallowed US$182.2 million of GFIJVH’s gross recognised capital allowance of US$925.5 million. On 30 May 2018, GFIJVH and SARS entered into a confidential settlement agreement (as provided for in the Tax Administration Act) in full and final settlement of this matter. As a result of the settlement GFIJVH recognised an additional US$185.1 million of capital allowances, previously not recognised, with a tax effect on this amount of US$53.7 million. 3 The total tax losses of US$337.7 million (2018: US$430.0 million) comprise US$8.8 million (2018: US$18.6 million) tax losses that expire between one and two years, US$15.2 million (2018: US$27.6 million) tax losses that expire between two and five years, US$16.5 million (2018: US$20.3 million) tax losses that expire between five and 10 years, US$33.0 million (2018: US$42.3 million) tax losses that expire after 10 years and US$264.2 million (2018: US$320.9 million) tax losses that have no expiry date. 4 Tax losses may be carried forward for 5 years. These losses expire on a first-in-first-out US$84.5 million (2018: US$19.0 million) expire in 2 years, tax losses of US$46.2 million (2018: US$2.9 million) expire in 3 years, tax losses of US$46.0 million (2018: US$31.5 million) expire in 4 years and tax losses of US$nil million (2018: US$27.5 million) expire in 5 years.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
Earnings Per Share (Tables)	Dec. 31, 2019
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Details of Earnings Per Share	UNITED STATES DOLLAR 2019 2018 2017 10. EARNINGS PER SHARE 10.1 Basic earnings/(loss) per share from continuing operations - cents 20 (42 ) (4 ) Basic earnings/(loss) per share is calculated by dividing the profit attributable to owners of the parent from continuing operations of US$161.6 million (2018: loss of US$348.2 million and 2017: loss of US$31.8 million) by the weighted average number of ordinary shares in issue during the year of 827,386,603 (2018: 821,532,707 and 2017: 820,611,806). 10.2 Basic earnings per share from discontinued operations - cents — — 2 Basic earnings per share is calculated by dividing the profit attributable to owners of the parent from discontinued operations of US$nil (2018: US$nil and 2017: US$13.1 million) by the weighted average number of ordinary shares in issue during the year of 827,386,603 (2018: 821,532,707 and 2017: 820,611,806). 10.3 Diluted earnings/(loss) per share from continuing operations - cents 19 (42 ) (4 ) Diluted earnings/(loss) per share is calculated on the basis of profit attributable to owners of the parent from continuing operations of US$161.6 million (2018: loss of US$348.2 million and 2017: loss of US$31.8 million) and 839,234,102 (2018: 832,465,491 and 2017: 826,920,421) shares being the diluted number of ordinary shares in issue during the year. The weighted average number of shares has been adjusted by the following to arrive at the diluted number of ordinary shares: Weighted average number of shares 827,386,603 821,532,707 820,611,806 Share options in issue 11,847,499 10,932,784 6,308,615 Diluted number of ordinary shares 839,234,102 832,465,491 826,920,421 10.4 Diluted earnings per share from discontinued operations - cents — — 2 Diluted earnings per share is calculated on the basis of profit attributable to owners of the parent from discontinued operations of US$nil (2018: US$nil and 2017: US$13.1 million) and 839,234,102 (2018: 832,465,491 and 2017: 826,920,421) shares being the diluted number of ordinary shares in issue during the year. 10.5 Headline earnings per share from continuing operations - cents 20 7 26 Headline earnings per share is calculated on the basis of adjusted net profit attributable to owners of the parent from continuing operations of US$162.7 million (2018: US$60.6 million and 2017: US$212.3 million) and 827,386,603 (2018: 821,532,707 and 2017: 820,611,806) shares being the weighted average number of ordinary shares in issue during the year. Net profit/(loss) attributable to owners of the parent from continuing operations is reconciled to headline earnings as follows: Long-form headline earnings reconciliation Profit/(loss) attributable to owners of the parent from continuing operations 161.6 (348.2 ) (31.8 ) Loss/(profit) on disposal of assets, net (0.8 ) 37.0 (2.6 ) Gross (1.2 ) 51.6 (4.0 ) Taxation effect 0.4 (12.0 ) 1.2 Non-controlling — (2.6 ) 0.2 Impairment, reversal of impairment and write-off 1.9 371.8 246.7 Impairment, net of reversal of impairment of investments and assets 9.8 520.3 200.2 Write-off 30.0 37.7 51.5 Profit on disposal of Maverix (2018: profit on dilution of Gold Fields’ interest in Maverix) (33.8 ) (4.0 ) — Gain on acquisition of Asanko — (51.8 ) — Release of foreign exchange reserve on disposal of subsidiary 4.6 — — Loss on disposal of subsidiary 0.3 — — Taxation effect (9.0 ) (130.4 ) (4.3 ) Non-controlling — — (0.7 ) Headline earnings 162.7 60.6 212.3 10.6 Headline earnings per share from discontinued operations - cents — — — Headline earnings per share is calculated on the basis of headline loss attributable to owners of the parent from discontinued operations of US$nil (US$nil and 2017: loss of US$2.4 million) and 827,386,603 (2018: 821,532,707 and 2017: 820,611,806) shares being the weighted average number of ordinary shares in issue during the year. Net profit attributable to owners of the parent from discontinued operations is reconciled to headline loss as follows: Long-form headline loss reconciliation Profit attributable to owners of the parent from discontinued operations — — 13.1 Impairment and write-off — — (15.5 ) Gain on sale of discontinued operation — — (23.5 ) Write-off — — 1.5 Taxation effect — — 6.5 Headline loss — — (2.4 ) 10.7 Diluted headline earnings per share from continuing operations—cents 19 7 26 Diluted headline earnings per share is calculated on the basis of headline profit attributable to owners of the parent continuing operations of US$162.7 million (2018: US$60.6 million and 2017: US$212.3 million) and 839,234,102 (2018: 832,465,491 and 2017: 826,920,421) shares being the diluted number of ordinary shares in issue during the year. 10.8 Diluted headline earnings per share from discontinued operations—cents — — — Diluted headline earnings per share is calculated on the basis of headline loss attributable to owners of the parent discontinued operations of US$nil (2018: US$nil and 2017: loss of US$2.4 million) and 839,234,102 (2018: 832,465,491 and 2017: 826,920,421) shares being the diluted number of ordinary shares in issue during the year.

Dividends (Tables)

Dividends (Tables)	12 Months Ended
Dividends (Tables)	Dec. 31, 2019
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Summary of Dividends	11. DIVIDENDS 2018 final dividend of 20 SA cents per share (2017: 50 SA cents and 2016: 60 SA cents) declared on 15 February 2019. 11.5 34.7 37.5 2019 interim dividend of 60 SA cents was declared during 2019 (2018: 20 SA cents and 2017: 40 SA cents). 34.0 10.8 25.3 A final dividend in respect of the financial year ended 31 December 2019 of 100 SA cents per share was approved by the Board of Directors on 12 February 2020. This dividend payable is not reflected in these financial statements. Dividends are subject to Dividend Withholding Tax. Total dividends 45.5 45.5 62.8 Dividends per share - cents 5 6 8

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
Discontinued Operations (Tables)	Dec. 31, 2019
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Summary of Results of Discontinued Operation	The financial results of Darlot were presented as a discontinued operation in the consolidated financial statements. UNITED STATES DOLLAR 2017 Below is a summary of the results of the discontinued operation for the year ended 31 December: Revenue 49.0 Cost of sales (50.7 ) Cost of sales before gold inventory change and amortisation and depreciation (46.3 ) Gold inventory change (0.9 ) Amortisation and depreciation (3.5 ) Other costs, net (1.9 ) Loss before royalties and taxation (3.6 ) Royalties (1.1 ) Loss before taxation (4.7 ) Mining and income taxation 1.4 Loss for the year from operating activities (3.3 ) Gain on sale of discontinued operation 23.5 Income tax on gain on sale of discontinued operation (7.1 ) Profit from discontinued operation, net of tax 13.1
Summary of Assets and Liabilities of Discontinued Operation	2017 US$ A$ Below is a summary of assets and liabilities of the discontinued operation at 2 October 2017: Property, plant and equipment 3.3 4.3 Inventories 7.2 9.4 Trade and other receivables 0.1 0.1 Trade and other payables (8.7 ) (11.3 ) Environmental rehabilitation costs provision (12.9 ) (16.9 ) Net liabilities (11.0 ) (14.4 ) Total consideration received less costs to sell 1 12.5 16.4 Gain on sale of discontinued operations 23.5 30.8 1 Due to the discounting of the deferred consideration and the transaction costs incurred, the total consideration of A$16.4 million used in the determination of the gain on sale of discontinued operations is less than the A$18.5 million per the agreement.
Assets Held for Sale	The costs associated with the termination of the contract include: 2019 Notes US$ Amount recognised as assets held for sale: Mining fleet 1 12.2 31.2 31.2 Amount recognised in profit or loss: Premium on mining fleet - 25% 1 7.8 Demobilisation costs 1.3 Early termination payment (paid before 31 December 2019) 4.0 7 13.1 Amount recognised in trade and other payables: Mining fleet1 31.2 Premium on mining fleet - 25%1 7.8 Demobilisation costs 1.3 27 40.3 1 This is based on the market value of the fleet.

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
Property, Plant and Equipment (Tables)	Dec. 31, 2019
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Summary of Property, Plant and Equipment	United States Dollars United States Dollars 31 December 2018 31 December 2019 Land, mineral Mine development, 1,2 Total Total Right-of-use assets Mine development, 1 Land, mineral 13. PROPERTY, PLANT AND EQUIPMENT Cost 674.3 9,886.4 10,560.7 Balance at beginning of the year 10,276.3 — 9,662.3 614.0 (10.4 ) 10.4 — Reclassifications — 0.4 271.7 (272.1) 14.0 800.2 814.2 Additions 612.5 — 582.1 30.4 — 96.2 96.2 Finance leases capitalised (refer note 33) — — — — — — — Reclassification of finance lease assets to right-of-use — 88.6 (88.6) — — — — Right-of-use 209.6 209.6 — — — — — Right-of-use 67.3 67.3 — — — — — Remeasurements of right-of-use 2 5.9 5.9 — — — 17.5 17.5 General borrowing costs capitalised 3 31.0 — 31.0 — (34.1 ) (494.6 ) (528.7) Disposals (14.3) — (11.0) (3.3) — — — Disposal of subsidiary (10.0) — (10.0) — — — — Scrapping of assets (388.1) (0.3) (381.6) (6.2) 24.1 — 24.1 Changes in estimates of rehabilitation assets 66.1 — — 66.1 (53.9 ) (653.8 ) (707.7 ) Translation adjustment 116.1 1.5 111.2 3.4 614.0 9,662.3 10,276.3 Balance at end of the year 10,972.4 373.0 10,167.1 432.3 Accumulated depreciation and impairment 34.7 5,633.1 5,667.8 Balance at beginning of the year 6,017.1 — 5,981.6 35.5 10.1 658.3 668.4 Charge for the year 610.0 42.0 555.1 12.9 — — — Reclassification of finance lease assets to right-of-use — 1.3 (1.3) — — 411.7 411.7 Impairment and reversal of impairment, net 4 0.2 0.2 — — — 37.7 37.7 Write-off 5 30.0 — 30.0 — (6.6 ) (391.6 ) (398.2 ) Disposals (11.8) — (8.7) (3.1) — — — Disposal of subsidiary (4.1) — (4.1) — — — — Scrapping of assets (388.1) (0.3) (381.6) (6.2) (2.7 ) (367.6 ) (370.3 ) Translation adjustment 62.0 0.8 56.7 4.5 35.5 5,981.6 6,017.1 Balance at end of the year 6,315.3 44.0 6,227.7 43.6 578.5 3,680.7 4,259.2 Carrying value at end of the year 4,657.1 329.0 3,939.4 388.7 1 Included in the cost of mine development, infrastructure and other assets are exploration and evaluation assets amounting to US$nil (2018: US$12.6 million). 2 The remeasurements relate mainly to leases at the Group’s Australian operations that have variable payments linked to the Austalian consumer price index (“CPI”). 3 General borrowing costs of US$31.0 million (2018: US$17.5 million) arising on group general borrowings were capitalised during the period and comprised US$20.0 million (2018: US9.9 million) borrowings costs related to the Damang reinvestment project and US$11.0 million (2018: US7.6 million) borrowings costs related to the Gruyere project. An average interest capitalisation rate of 6.2% (2018: 5.9%) was applied. 4 The impairment of US$0.2 million (2018: US$411.7 million) is made up of US$0.2 million (2018: US$1.9 million) impairment of property, plant and equipment and US$nil (2018: US$409.8 million) impairment of the South Deep cash-generating unit. 5 The write-off

Goodwill (Tables)

Goodwill (Tables)	12 Months Ended
Goodwill (Tables)	Dec. 31, 2019
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Changes in Goodwill	UNITED STATES DOLLAR 2019 2018 14. GOODWILL Balance at beginning of the year — 76.6 Impairment — (71.7 ) Translation adjustment — (4.9 ) Balance at end of the year — —

Acquisition of Asanko Gold (Tab

Acquisition of Asanko Gold (Tables)	12 Months Ended
Acquisition of Asanko Gold (Tables)	Dec. 31, 2019
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Summary of Acquisition Date Fair Value of Major Class of Consideration Transferred	The following table summarises the acquisition date fair value of the consideration transferred: UNITED STATES DOLLAR 2018 Cash - Asanko redeemable preference shares and equity 165.0 Total consideration transferred 165.0
Summary of gain on acquisition	The gain on acquisition was determined as follows: UNITED STATES DOLLAR 2018 Total fair value of assets acquired 216.8 Redeemable preference shares equity financial asset acquired 1 129.9 Fair value of identifiable net assets acquired 2 86.9 Consideration transferred (165.0 ) Gain on acquisition 3 51.8
Summary of Key Assumptions Used to Determine Fair Value of Redeemable Preference Shares at Acquisition	The redeemable preference shares were recognised as an investment in an equity financial instrument measured at fair value through other comprehensive income. The key assumptions used to determine the fair value of the redeemable preference shares of US$129.9 million at acquisition were as follows: Par value of the preference shares US$ 165.0 million Market related interest rate 7.85 % Expected redemption period—2020 to 2023 5 years
Summary of Key Assumptions Used to Determine Fair Value of the Net Identifiable Assets Acquired	2 The key assumptions used to determine the fair value of the net identifiable assets acquired were as follows: US$ gold price - 2018 to 2019 US$ 1,200/oz US$ gold price - 2020 onwards US$ 1,300/oz Discount rate 10.27 % Life-of-mine 12 years

Equity Accounted Investees (Tab

Equity Accounted Investees (Tables)	12 Months Ended
Equity Accounted Investees (Tables)	Dec. 31, 2019
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Summary of Equity Accounted Investees	UNITED STATES DOLLAR 2019 2018 2017 16.1 EQUITY ACCOUNTED INVESTEES Investment in joint ventures 172.0 177.5 (a) Far Southeast Gold Resources Incorporated (“FSE”) 82.1 91.7 (b) Asanko Gold 89.9 85.8 Investment in associates — 47.6 (c) Maverix Metals Incorporated (“Maverix”) — 47.6 (d) Other associates — — Total equity accounted investees 172.0 225.1 Share of results of equity accounted investees, net of taxation recognised in the consolidated income statement are made up as follows: (a) Far Southeast Gold Resources Incorporated (“FSE”) (1.4 ) (12.9 ) (1.6 ) (b) Asanko Gold 4.1 (1.1 ) — (c) Maverix Metals Incorporated (“Maverix”) 0.4 0.9 0.3 (d) Other associates — — — Total share of results of equity investees net of tax 3.1 (13.1 ) (1.3 )
Summary of Equity Method Investment in Joint Venture - Far Southeast Gold Resources Incorporated ("FSE")	2019 2018 Unlisted shares at cost 230.0 230.0 Equity contribution 93.6 92.2 Cumulative impairment 1 (147.9 ) (138.3 ) Share of accumulated losses brought forward (92.2 ) (79.3 ) Share of loss after taxation 2 (1.4 ) (12.9 ) Total investment in joint venture 3 82.1 91.7 1 Refer note 6 for details of impairment. 2 Gold Fields share of loss after taxation represents exploration and other costs, including work completed on a scoping study, which is fully funded by Gold Fields as part of their equity contribution. 3 FSE is a company incorporated under the laws of the Philippines and owns the gold-copper Far Southeast exploration project (the “FSE project”). During the exploration phase of the FSE project and as long as the 20% option remains exercisable, the Group has joint control over the FSE project. The Group will only have the power to direct the activities of FSE once it exercises the option to acquire the additional 20% shareholding in FSE, which is only exercisable once a FTAA is obtained. FSE has no revenues or significant assets or liabilities. Assets included in FSE represent the rights to explore and eventually mine the FSE project.
Summary of Financial Information and Carrying Amount of the Group Interest in Asanko	The following table summarises the financial information and the carrying amount of the Group’s interest in Asanko: Investment in joint venture at cost conists of: 2019 2018 Initial investment at cost 86.9 86.9 Share of accumulated losses brought forward (1.1 ) — Share of profit/(loss) after taxation 4.1 (1.1 ) Carrying value at 31 December 2018 89.9 85.8 The carrying value of the investment comprises the following: AGGL 9.5 5.4 Shika 80.4 80.4 Adansi 1 — — Total 89.9 85.8 The Group’s interest in the summarised financial statements of Asanko on a combined basis after fair value adjustments as determined at acquisition, is as follows: 2019 2018 Statement of financial position - Asanko Non-current 3 474.6 441.6 Current assets 2 120.0 109.3 Non-current (79.4 ) (34.2 ) Current liabilities (62.2 ) (52.7 ) Net assets 453.0 464.0 Less: Shika redeemable preference shares at acquisition (271.4 ) (291.4 ) Net assets attributable to ordinary share holders 181.6 172.6 Group’s share of net assets 89.9 85.8 Reconciled as follows: Cash consideration paid 165.0 165.0 Less: Consideration allocated to the redeemable preference shares (note 17) (129.9 ) (129.9 ) Consideration paid for equity portion 35.1 35.1 Gain on acquisition 51.8 51.8 Share of accumulated losses brought forward (1.1 ) — Share of profit/(loss) after taxation 4.1 (1.1 ) Carrying amount of interest in joint venture 89.9 85.8 Income statement - Asanko Revenue 341.0 122.0 Production costs (199.2 ) (79.0 ) Depreciation and amortisation (95.4 ) (34.3 ) Other expenses (20.1 ) (4.9 ) Royalties (17.2 ) (6.2 ) Income tax expense — — Profit/(loss) for the year (2018: five month period) 9.1 (2.4 ) Other comprehensive income — — Total comprehensive income 9.1 (2.4 ) Group’s share of total comprehensive income 4.1 (1.1 ) 1 Nominal value at 31 December 2019 and 2018 is less than US$0.1 million. 2 Current assets includes cash and cash equivalents amounting of US$43.7 million (2018: US$21.6 million). 3 Includes impact of fair value adjustment, amounting to US$39.6 million, to property, plant and equipment of the Asanko Gold mine as determined at acquisition.
Summary of Equity Method Investments in Associates - Maverix Metals Incorporated ("Maverix")	Investment in associate consists of: Listed shares at cost 42.1 42.1 Profit on dilution of Gold Fields’ interest in Maverix 4.0 4.0 Transaction costs capitalised 0.3 0.3 Share of accumulated profits brought forward 1.2 0.3 Share of profit after taxation 0.4 0.9 Derecognition of associate (48.0 ) — Investment in associate - Maverix 1 — 47.6 (d) Other Investment in associate — — Rusoro Mining Limited (“Rusoro”) 2 — — 1 The fair value, based on the quoted market price of the investment, in Maverix at 31 December 2018 was US$74.7 million. 2 Represents a holding of 25.7% (2018: 25.7%) in Rusoro. The carrying value of Rusoro, incorporated in Venezuela, was written down to US$nil at 31 December 2010 due to losses incurred by the entity. The fair value, based on the quoted market price of the investment, in Rusoro at 31 December 2019 is US$6.5 million (2018: US$13.4 million).The unrecognised share of loss of Rusoro for the year amounted to US$4.2 million (2018: unrecognised shares of loss of US$2.6 million). The cumulative unrecognised share of losses of Rusoro at 31 December 2019 amounted to US$202.8 million (2018: US$198.6 million). On 22 August 2016, the Arbitration Tribunal, operating under the Additional Facility Rules of the World Bank’s International Centre for the Settlement of Investment Disputes, awarded Rusoro damages of US$967.8 million plus pre and post-award interest which currently equates to in excess of US$1.2 billion in the arbitration brought by Rusoro against the Bolivarian Republic of Venezuela (“Venezuela”). Venezuela has not complied with the arbitration award terms, which were issued on 22 August 2016. On 6 December 2017, Rusoro obtained a judgement against Venezuela in the Superior Court of Justice in Ontario, Canada, in excess of US$1.3 billion. The judgement, which was issued on default as a result of Venezuela’s failure to appear before the Ontario court, arised out of Rusoro’s ongoing dispute with Venezuela over the South American nation’s seizure of its gold mining properties in the country. The Canadian judgement, which confirmed an arbitration award issued in Rusoro’s favour in the same amount, was issued on 25 April 2017. Venezuela did not appeal or seek to vacate the judgement, and its time to do so expired. Rusoro further filed a suit in the Supreme Court of the State of New York, seeking recognition of the Canadian judgement. Rusoro brought the New York lawsuit in addition to an action it filed in the U.S. District Court for the District of Columbia, which seeks recognition of and the entry of judgement on the original arbitration award. A favourable ruling from either the New York or D.C. court will entitle Rusoro to use all legal procedures – including broad discovery from both Venezuela and third parties – that U.S. law provides judgement creditors. Any judgement issued in New York will also accrue interest at 9% per annum until the judgement is fully paid. On 19 October 2018, Rusoro announced that it had reached a settlement agreement with Venezuela by which the Venezuela government agreed to pay Rusoro US$1.28 billion to acquire the company’s mining data and full release of the judgement issued in favour of the company. In a decision dated 29 January 2019, the Paris Court of Appeals partially annulled the arbitral award issued in favour of the Company in August 2016. Rusoro continues to vigorously pursue all available remedies to reinstate such award.
Summary of Other Investments	Listed shares at cost 42.1 42.1 Profit on dilution of Gold Fields’ interest in Maverix 4.0 4.0 Transaction costs capitalised 0.3 0.3 Share of accumulated profits brought forward 1.2 0.3 Share of profit after taxation 0.4 0.9 Derecognition of associate (48.0 ) — Investment in associate - Maverix 1 — 47.6 (d) Other Investment in associate — — Rusoro Mining Limited (“Rusoro”) 2 — — 1 The fair value, based on the quoted market price of the investment, in Maverix at 31 December 2018 was US$74.7 million. 2 Represents a holding of 25.7% (2018: 25.7%) in Rusoro. The carrying value of Rusoro, incorporated in Venezuela, was written down to US$nil at 31 December 2010 due to losses incurred by the entity. The fair value, based on the quoted market price of the investment, in Rusoro at 31 December 2019 is US$6.5 million (2018: US$13.4 million).The unrecognised share of loss of Rusoro for the year amounted to US$4.2 million (2018: unrecognised shares of loss of US$2.6 million). The cumulative unrecognised share of losses of Rusoro at 31 December 2019 amounted to US$202.8 million (2018: US$198.6 million). On 22 August 2016, the Arbitration Tribunal, operating under the Additional Facility Rules of the World Bank’s International Centre for the Settlement of Investment Disputes, awarded Rusoro damages of US$967.8 million plus pre and post-award interest which currently equates to in excess of US$1.2 billion in the arbitration brought by Rusoro against the Bolivarian Republic of Venezuela (“Venezuela”). Venezuela has not complied with the arbitration award terms, which were issued on 22 August 2016. On 6 December 2017, Rusoro obtained a judgement against Venezuela in the Superior Court of Justice in Ontario, Canada, in excess of US$1.3 billion. The judgement, which was issued on default as a result of Venezuela’s failure to appear before the Ontario court, arised out of Rusoro’s ongoing dispute with Venezuela over the South American nation’s seizure of its gold mining properties in the country. The Canadian judgement, which confirmed an arbitration award issued in Rusoro’s favour in the same amount, was issued on 25 April 2017. Venezuela did not appeal or seek to vacate the judgement, and its time to do so expired. Rusoro further filed a suit in the Supreme Court of the State of New York, seeking recognition of the Canadian judgement. Rusoro brought the New York lawsuit in addition to an action it filed in the U.S. District Court for the District of Columbia, which seeks recognition of and the entry of judgement on the original arbitration award. A favourable ruling from either the New York or D.C. court will entitle Rusoro to use all legal procedures – including broad discovery from both Venezuela and third parties – that U.S. law provides judgement creditors. Any judgement issued in New York will also accrue interest at 9% per annum until the judgement is fully paid. On 19 October 2018, Rusoro announced that it had reached a settlement agreement with Venezuela by which the Venezuela government agreed to pay Rusoro US$1.28 billion to acquire the company’s mining data and full release of the judgement issued in favour of the company. In a decision dated 29 January 2019, the Paris Court of Appeals partially annulled the arbitral award issued in favour of the Company in August 2016. Rusoro continues to vigorously pursue all available remedies to reinstate such award.
Summary of Share of Joint Operation and Includes Inter-company Transactions and Balances	Below is a summary of Gold Fields’ share of the joint operation and includes inter-company transactions and balances: 2019 2018 Statement of financial position US$ A$ US$ A$ Non current assets Property, plant and equipment 623.0 887.6 554.6 788.6 Current assets 27.5 39.3 11.7 16.5 Cash and cash equivalents 6.5 9.3 2.1 3.0 Inventories 18.3 26.1 0.8 1.1 Prepayments — — 6.4 9.1 Other receivables 2.7 3.9 2.4 3.3 Total assets 650.5 926.9 566.3 805.1 Total equity Retained earnings (0.6 ) (0.8 ) (4.7 ) (6.7 ) Non current liabilities 147.3 209.9 119.7 170.3 Deferred taxation 50.2 71.6 30.5 43.3 Lease liabilities 79.4 113.1 76.5 108.8 Environmental rehabilitation costs 17.6 25.1 12.7 18.2 Long-term incentive plan 0.1 0.1 — — Current liabilities 503.8 717.8 451.3 641.5 Related entity loans payable 480.4 684.5 439.0 624.1 Trade and other payables 17.5 24.9 7.7 10.9 Current portion of lease liabilities 5.9 8.4 4.6 6.5 Total equity and liabilities 650.5 926.9 566.3 805.1

Investments (Tables)

Investments (Tables)	12 Months Ended
Investments (Tables)	Dec. 31, 2019
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Summary of Investments	UNITED STATES DOLLAR 2019 2018 17. INVESTMENTS Listed At fair value through OCI 1 47.9 93.0 Unlisted Asanko redeemable preference shares 2 95.5 132.9 Other — 0.1 Derivative instruments Warrants 2 11.7 9.3 Total investments 155.1 235.3 1 The listed investments comprise mainly investments in Asanko Gold Inc. of US$21.2 million, Cardinal Resources Limited of US$17.1 million, Magmatic Resources Limited of US$3.0 million and Chakana Copper Corp of US$3.0 million. Refer note 44 for further details of listed investments. The decrease in value of the listed investments was mainly due to the disposal of Red 5 Limited, Gold Road Resources Limited and Hummingbird Resources PLC. 2 Consists of 174,939,999 (2018: 164,939,999) redeemable preference shares at par value for US$174,939,999 (2018: US$164,939,999). The following table shows a reconciliation from the fair value at the beginning of the year (2018: at acquisition) to the fair value of the redeemable preference shares at the end of the year (level 3 financial instrument): Fair value at beginning of the year (2018: at acquision) 132.9 129.9 Purchase of preference shares 20.0 — Redemption of preference shares (10.0 ) — Net change in fair value (recognised in OCI) (47.4 ) 3.0 Fair value at end of the year 95.5 132.9 The fair value is based on the expected cash flows of the Asanko Gold Mine based on the life-of-mine life-of-mine Market related interest rate 8.50 % 7.85 % Expected redemption period 8 years 5 years Any reasonable change in the timing of the cash flows or market related discount rate could materially change the fair value of the redeemable preference shares (refer note 38 for sensitivily analysis performed). Refer to note 15 and 16.1 (b) for further details. 2 Consists of 4.125 million (2018: 10.0 million) common share purchase warrants of Maverix. Refer note 16.1 ( c ) for further details.

Environmental Trust Funds (Tabl

Environmental Trust Funds (Tables)	12 Months Ended
Environmental Trust Funds (Tables)	Dec. 31, 2019
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Schedule of Environmental Trust Funds	UNITED STATES DOLLAR 2019 2018 18. ENVIRONMENTAL TRUST FUNDS Balance at beginning of the year 60.8 55.5 Contributions from continuing operations 7.1 7.7 Interest earned 0.7 0.6 Translation adjustment 0.9 (3.0 ) Balance at end of the year 69.5 60.8 The trust funds consist of term deposits amounting to US$16.8 million (2018: US$14.8 million) in South Africa, as well as secured cash deposits amounting to US$52.7 million (2018: US$46.0 million) in Ghana. These funds are intended to fund environmental rehabilitation obligations of the Group’s South African and Ghanaian mines and are not available for general purposes of the Group. All income earned in these funds is re-invested

Inventories (Tables)

Inventories (Tables)	12 Months Ended
Inventories (Tables)	Dec. 31, 2019
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Schedule of Inventories	19. INVENTORIES Gold-in-process 375.1 325.0 Consumable stores 183.7 176.5 Total inventories 558.8 501.5 Heap l each and stockpiles inventories included in non-current 1 (141.0 ) (133.3 ) Total current inventories 2 417.8 368.2 1 Heap leach and stockpiles inventories will only be processed at the end of life-of-mine. 2 The cost of consumable stores consumed during the year and included in cost of sales amounted to US$270.4 million (2018: US$280.0 million).

Trade and Other Receivables (Ta

Trade and Other Receivables (Tables)	12 Months Ended
Trade and Other Receivables (Tables)	Dec. 31, 2019
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Schedule of Trade and Other Receivables	UNITED STATES DOLLAR 2019 2018 1 20. TRADE AND OTHER RECEIVABLES Trade receivables - gold sales and copper concentrate 23.6 15.3 Trade receivables - other 18.1 16.5 Oil derivatives contracts (2018: Gold, copper and oil) 2 1.1 8.3 Receivables due from the sale of Tarkwa mining fleet 3 26.5 26.5 Deposits 0.1 0.2 Payroll receivables 2.4 2.9 Prepayments 42.5 43.3 Value Added Tax and import duties 16.0 18.1 Diesel rebate 0.9 1.1 Other 5.9 6.4 Total trade and other receivables 137.1 138.6 1 Refer note 42. 2 Comprises US$1.0 million (2018: US$1.7 million and 2017: US$5.1 million) relating to Australian oil derivative contracts, US$0.1 million (2018: US$3.0 million and 2017: US$9.0 million) relating to Ghanaian oil derivative contracts, US$nil (2018: US$2.4 million and 2017:US$nil) relating to Ghanaian gold derivative contracts, US$nil (2018: US$nil and 2017: US$10.9 million) relating to the gold derivative contracts at South Deep and US$nil (2018: US$1.2 million and 2017: US$nil) relating to Peruvian copper derivative contracts. Refer note 38 for further details. 3 Relates to the sale of mining fleet at Tarkwa as part of the transition to contractor mining.

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	12 Months Ended
Cash and Cash Equivalents (Tables)	Dec. 31, 2019
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Schedule of Cash and Cash Equivalents	21. CASH AND CASH EQUIVALENTS Cash at bank and on hand 515.0 219.7 Total cash and cash equivalents 515.0 219.7

Stated Capital (Tables)

Stated Capital (Tables)	12 Months Ended
Stated Capital (Tables)	Dec. 31, 2019
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Schedule of Stated Capital	UNITED STATES DOLLAR 2019 2018 22. STATED CAPITAL Stated capital 3,622.5 3,622.5 3,622.5 3,622.5 Number of Number of In issue at 1 January 821,532,707 821,532,707 Exercise of employee share options 7,100,000 — In issue at 31 December 828,632,707 821,532,707 Authorised 2,000,000,000 2,000,000,000
Summary of Beneficial Shareholders	The following beneficial shareholders hold 5% or more of the Company’s listed ordinary shares at 31 December 2019: Number of % of issued Government Employees Pension Fund 53,726,997 6.48 % VanEck Vectors Gold Miners ETF 52,395,279 6.32 %

Deferred Taxation (Tables)

Deferred Taxation (Tables)	12 Months Ended
Deferred Taxation (Tables)	Dec. 31, 2019
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Schedule of Deferred Taxation	UNITED STATES DOLLAR 2019 2018 23. DEFERRED TAXATION The detailed components of the net deferred taxation liability which results from the differences between the carrying amounts of assets and liabilities recognised for financial reporting and taxation purposes in different accounting periods are: Liabilities - Mining assets 908.3 835.7 - Right-of-use 101.5 — - Investment in environmental trust funds 3.7 3.2 - Inventories 13.3 11.3 - Unremitted earnings 13.3 9.3 - Other 13.0 5.2 Liabilities 1,053.1 864.7 Assets - Provisions (117.4 ) (95.8 ) - Tax losses 1 (120.6 ) (98.4 ) - Unredeemed capital expenditure 1 (505.7 ) (475.9 ) - Lease liabilities (2018: Finance lease liabilities) (103.0 ) (2.0 ) - Unrealised loss on financial instruments (38.3 ) (6.8 ) - Other — (0.4 ) Assets (885.0 ) (679.3 ) Net deferred taxation liabilities 168.1 185.4 Included in the statement of financial position as follows: Deferred taxation assets (265.5 ) (269.5 ) Deferred taxation liabilities 433.6 454.9 Net deferred taxation liabilities 168.1 185.4 Balance at beginning of the year 185.4 381.9 Recognised in profit or loss (15.0 ) (211.6 ) Recognised in OCI 8.4 (4.0 ) Translation adjustment (10.7 ) 19.1 Balance at end of the year 168.1 185.4 1 Tax losses and unredeemed capital expenditure have been recognised, as disclosed in note 9, to the extent that the tax paying entities will have taxable profits in the forseeable future (per the life-of-mine life-of-mine

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
Borrowings (Tables)	Dec. 31, 2019
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Schedule of Borrowings	The terms and conditions of outstanding loans are as follows: UNITED STATES DOLLAR Facility Notes 2019 2018 1 2017 1 Borrower Nominal Interest rate Commitment Maturity date US$1 billion notes issue (the 2020 notes) 2 (a ) 601.4 849.4 847.9 Orogen 4.875 % — 7 October 2020 US$500 million 5-year 5-year 3 (b ) 496.3 — — Orogen 5.125 % — 15 May 2024 US$500 million 10-year 10-year 3 (c ) 496.1 — — Orogen 6.125 % — 15 May 2029 US$150 million revolving senior secured credit facility–old 4 (d ) — — — La Cima LIBOR plus 1.63 % 0.65 % 19 September 2017 US$150 million revolving senior secured credit facility–new 4 (d ) 83.5 83.5 83.5 La Cima LIBOR plus 1.20 % 0.50 % 19 September 2020 US$70 million revolving credit facility 5 (f ) — — — Ghana LIBOR plus 2.450 % 1.0 % 6 May 2017 US$100 million revolving credit facility 5 (e ) — 45.0 45.0 Ghana LIBOR plus 3.50 % 1.40 % 30 November 2021 A$500 million syndicated revolving credit facility 6 (f ) 168.5 316.5 231.5 Gruyere BBSY plus 2.175 % 0.87 % 24 May 2021 US$1,290 million term loan and revolving credit facilities 7 (g ) — 472.0 380.0 - Facility A (US$380 million) — 380.0 380.0 Orogen LIBOR plus 2.25 % — 6 June 2020 - Facility B (US$360 million) — 92.0 — Orogen LIBOR plus 1.95 % 0.68 % 6 June 2021 - Facility C (US$550 million) — — — Orogen LIBOR plus 2.20 % 0.77 % 6 June 2021 US$1,200 million revolving credit facilities 8 — — — - Facility A (US$600 million 3-year — — — Orogen/Ghana LIBOR plus 1.45 % 0.51 % 25 July 2022 - Facility B (US$600 million 5-year — — — Orogen/Ghana LIBOR plus 1.70 % 0.60 % 25 July 2024 R1,500 million Nedbank revolving credit facility - old 9 (h ) — — 79.5 GFIJVH/GFO JIBAR plus 2.50 % 0.85 % 7 March 2018 R1,500 million Nedbank revolving credit facility - new 9 — — — GFIJVH/GFO JIBAR plus 2.80 % 0.90 % 8 May 2023 R500 million Standard Bank revolving credit facility 10 (i ) — 13.7 — GFIJVH/GFO JIBAR plus 2.75 % 1.05 % 31 March 2020 R500 million Absa Bank revolving credit facility 11 (j ) — 34.2 — GFIJVH/GFO JIBAR plus 2.30 % 0.8925 % 31 March 2020 Short-term Rand uncommitted credit facilities 12 (k ) — 92.5 115.0 — — — — Total borrowings 1,845.8 1,906.8 1,782.4 Current borrowings (684.9 ) (92.5 ) (194.5 ) Non-current 1,160.9 1,814.3 1,587.9 1 Refer note 42. 2 The balance is net of unamortised transaction costs amounting to US$1.3 million (2018: US$3.0 million) which will unwind over the remaining period of the 2020 notes as an interest expense. The payment of all amounts due in respect of the 2020 notes is unconditionally and irrevocably guaranteed by Gold Fields Limited (“Gold Fields”), Gold Fields Operations Limited (“GFO”) and Gold Fields Holdings Company (BVI) Limited (“GF Holdings”) (collectively “the Guarantors”), on a joint and several basis. During 2016, Gold Fields Australasia (BVI) Limited (“GFA”) offered and accepted the purchase of an aggregate principal amount of notes equal to US$147.6 million at the purchase price of US$880 per US$1,000 in principal amount of notes. GFA intends to hold the notes acquired until their maturity on 7 October 2020. The group recognised a profit of US$17.7 million on the buy back of the 2020 notes. On 27 May 2019, Gold Fields announced the successful buy back of $250m of the outstanding 2020 notes at 102% of par as compared with a premium of 101.73% of par at the close of business on 24 May 2019. The buy-back 5-year 10-year buy-back 3 On 9 May 2019, Gold Fields successfully concluded the raising of two new bonds, a US$500 million 5-year 10-year The balances of the 5-year 10-year The payments of all amounts due in respect of the 5-year 10-year 4 Borrowings under the revolving senior secured credit facility are secured by first-ranking assignments of all rights, title and interest in all of La Cima’s concentrate sale agreements. In addition, the offshore and onshore collection accounts of La Cima are subject to an account control agreement and a first-ranking charge in favour of the lenders. This facility is non-recourse Group. The old revolving senior secured credit facility matured in 2017 and was refinanced through the new revolving credit facility on 22 September 2017. 5 Borrowings under the facility are guaranteed by Gold Fields Ghana Limited (“GF Ghana Limited”) and Abosso Goldfields Limited (“Abosso”). Borrowings under this facility were also secured by the registration of security over certain fleet vehicles owned by GF Ghana and Abosso (“Secured Assets”). In addition, the lenders were noted as first loss payees under the insurance contracts in respect of the Secured Assets and were assigned the rights under the maintenance contracts between certain suppliers of the Secured Assets. This facility is non-recourse Group. The US$70 million revolving senior secured credit facility in 2017 and was refinanced though the US$108 million revolving senior secured credit facility on 17 July 2017. On 22 March 2018, the Borrowers, the Original Lender and the Security Agent entered into an Agreement and Restatement Agreement to release any and all security interests created in favour of the Security Agent (“the Security”). The effective date of the release of the Security was 22 March 2018. On 23 November 2018, GF Ghana Limited and Abosso (as Borrowers) and The Standard Bank of South Africa Limited (acting through its Isle of Man branch) (as Original Lender and Agent) entered into the Fifth Amendment and Restatement Agreement which further amended the facility agreement. The effective date of the Fifth Amendment and Restatement Agreement is 30 November 2018. The final maturity date is the date falling three years after the effective date, namely 30 November 2021. 6 Borrowings under this facility are guaranteed by Gold Fields, GF Holdings, Orogen, GFO, GFIJVH and GF Ghana. 7 On 25 July 2019, the US$1,290 million term loan and revolving credit facilities were cancelled following the completion of the new US$1,200 million revolving credit facilities. Borrowings under this facility were guaranteed by Gold Fields, GF Holdings, Orogen, GFO, GFIJVH and GF Ghana. 8 On 25 July 2019, Gold Fields Orogen Holding (BVI) Limited and Gold Fields Ghana Holdings (BVI) Limited entered into a US$1,200 million revolving credit facilities agreement which became effective on the same day, with a syndicate of international banks and financial institutions. The new facilities comprise two tranches, a US$600 million 3 year revolving credit facility (with an option to extend to up to 2 years subject to lender consent) and a US$600 million 5 year revolving credit facility (with an option to extend to up to 2 years subject to lender consent). The purpose of the new facilities is to refinance the US$1,290 million term loan and revolving credit facilities, to repay the 2020 notes and to fund general corporate and working capital requirements of the Gold Fields group. Borrowings under this facility are guaranteed by Gold Fields, GF Holdings, Orogen, GF Ghana and Gruyere Holdings Pty Ltd (“Gruyere”). 9 Borrowings under this facility are guaranteed by Gold Fields, GFO, GF Holdings, Orogen, GFIJVH, GF Ghana and Gruyere. The old revolving credit facility matured on 7 March 2018 and was replaced by the new revolving credit facility on 8 May 2018. 10 Borrowings under this facility are guaranteed by Gold Fields, GFO, GF Holdings, Orogen, GFIJVH, GF Ghana and Gruyere. 11 Borrowings under this facility are guaranteed by Gold Fields, GFO, GF Holdings, Orogen, GFIJVH, GF Ghana and Gruyere. 12 The Group utilised uncommitted loan facilities from some of the major banks to fund the capital expenditure and working capital requirements of the South African operation. These facilities have no fixed terms, are short-term in nature and interest rates are market related. Borrowings under these facilities are guaranteed by Gold Fields.
Summary of Borrowings by Type	UNITED STATES DOLLAR 2019 2018 1 2017 1 24. BORROWINGS (continued) (a) US$1 billion notes issue Balance at beginning of the year 849.4 847.9 846.4 Buy-back (255.0 ) — — Loss on buy-back 5.0 — — Unwinding of transaction costs 2.0 1.5 1.5 Balance at end of the year 601.4 849.4 847.9 (b) US$500 million 5-year Loans advanced 500.0 — — Transaction costs (4.1 ) — — Unwinding of transaction costs 0.4 — — Balance at end of the year 496.3 — — (c) US$500 million 10-year Loans advanced 500.0 — — Transaction costs (4.1 ) — — Unwinding of transaction costs 0.2 — — Balance at end of the year 496.1 — — (d) US$150 million revolving senior secured credit facility - old Balance at beginning of the year — — 82.0 Repayments — — (82.0 ) Balance at end of the year — — — (e) US$150 million revolving senior secured credit facility - new Balance at beginning of the year 83.5 83.5 — Loans advanced — — 83.5 Balance at end of the year 83.5 83.5 83.5 (f) US$70 million revolving senior secured credit facility Balance at beginning of the year — — 45.0 Repayments — — (45.0 ) Balance at end of the year — — — (g) US$100 million revolving credit facility Balance at beginning of the year 45.0 45.0 — Loans advanced — — 45.0 Repayments (45.0 ) — — Balance at end of the year — 45.0 45.0 (h) A$500 million syndicated revolving credit facility Balance at beginning of the year 316.5 231.5 — Loans advanced — 119.9 236.6 Repayments (143.6 ) — — Translation adjustment (4.4 ) (34.9 ) (5.1 ) Balance at end of the year 168.5 316.5 231.5 (i) US$1,290 million term loan and revolving credit facilities Balance at beginning of the year 472.0 380.0 658.5 Loans advanced 434.4 382.6 73.5 Repayments (906.4 ) (290.6 ) (352.0 ) Balance at end of the year — 472.0 380 (j) R1,500 million Nedbank revolving credit facility - old Balance at beginning of the year — 79.5 — Loans advanced — 20.7 78.5 Repayments — (107.7 ) — Translation adjustment — 7.5 1.0 Balance at end of the year — — 79.5 (k) R500 million Standard Bank revolving credit facility Balance at beginning of the year 13.7 — — Loans advanced 21.2 13.7 — Repayments (35.1 ) — — Translation adjustment 0.2 — — Balance at end of the year — 13.7 — (l) R500 million Absa revolving credit facility Balance at beginning of the year 34.2 — — Loans advanced — 36.1 — Repayments (34.5 ) — — Translation adjustment 0.3 (1.9 ) — Balance at end of the year — 34.2 — (m) Short-term Rand uncommitted credit facilities Balance at beginning of the year 92.5 115.0 61.0 Loans advanced 90.6 117.0 270.5 Repayments (184.7 ) (137.6 ) (223.5 ) Translation adjustment 1.6 (1.9 ) 7.0 Balance at end of the year — 92.5 115.0 Total borrowings 1,845.8 1,906.8 1,782.4 The exposure of the Group’s borrowings to interest rate changes and the contractual repricing dates at the reporting dates are as follows: Variable rate with exposure to repricing (six months or less) 252.0 1,057.4 934.5 Fixed rate with no exposure to repricing 1,593.8 849.4 847.9 1,845.8 1,906.8 1,782.4 The carrying amounts of the Group’s borrowings are denominated in the following currencies: US Dollar 1,677.3 1,449.9 1,356.4 Australian Dollar 168.5 316.5 231.5 Rand — 140.4 194.5 1,845.8 1,906.8 1,782.4 The Group has the following undrawn borrowing facilities: Committed 1,727.6 1,097.7 1,305.1 Uncommitted 116.8 20.3 16.2 1,844.4 1,118.0 1,321.3 All of the above undrawn committed facilities have floating rates. The uncommitted facilities have no expiry dates and are open ended. Undrawn committed facilities have the following expiry dates: - within one year 137.9 — 39.7 - later than one year and not later than two years 282.5 93.0 — - later than two years and not later than three years 600.0 902.2 715.4 - later than three years and not later than five years 707.1 102.5 550.0 1,727.6 1,097.7 1,305.1 1 Refer note 42.

Provisions (Tables)

Provisions (Tables)	12 Months Ended
Provisions (Tables)	Dec. 31, 2019
Text block [abstract]
Schedule of Provisions	UNITED STATES DOLLAR 2019 2018 25. PROVISIONS 25.1 Environmental rehabilitation costs 370.3 289.6 25.2 Silicosis settlement costs 16.6 25.1 Other 4.2 4.8 Total provisions 391.1 319.5 25.1 Environmental rehabilitation costs Balance at beginning of the year 289.6 281.5 Changes in estimates 1 79.5 23.2 Interest expense 11.7 11.7 Payments (10.7 ) (9.6 ) Translation adjustment 0.2 (17.2 ) Balance at end of the year 2 370.3 289.6 1 Changes in estimates are defined as changes in reserves and corresponding changes in life of mine as well as changes in laws and regulations governing environmental matters, closure cost estimates and discount rates. 2 South African, Ghanaian, Australian and Peruvian mining companies are required by law to undertake rehabilitation as part of their ongoing operations. These environmental rehabilitation costs are funded as follows: • Ghana - reclamation bonds underwritten by banks and restricted cash (refer note 18); • South Africa - contributions into environmental trust funds (refer note 18) and guarantees (refer note 34); • Australia - mine rehabilitation fund levy; and • Peru - bank guarantees (refer note 34).
Schedule of Assumption in Provision Calculation	The provision is calculated using the following gross closure cost estimates: South Africa 45.9 41.8 Ghana 105.6 100.4 Australia 198.2 178.2 Peru 86.2 79.1 Chile 0.4 0.4 Total gross closure cost estimates 436.3 399.9 The provision is calculated using the following assumptions: Inflation rate Discount rate 2019 South Africa 5.4 % 10.3 % Ghana 2.5 % 7.7%-7.9 % Australia 2.5 % 1.2%-1.6 % Peru 2.5 % 3.0 % Chile 2.5 % 2.6 % 2018 South Africa 5.5 % 10.0 % Ghana 2.2 % 10.3 % Australia 2.5 % 2.3%-2.5 % Peru 2.2 % 4.2 % Chile 2.2 % 3.6 %
Summary of Silicosis Settlement Costs	25.2 Silicosis settlement costs 1 Balance at the beginning of the year 25.1 31.9 Changes in estimates (1.6 ) (4.5 ) Unwinding of provision recognised as finance expense 1.3 2.0 Payment (4.6 ) — Translation 1.0 (4.3 ) Balance at end of the year 21.2 25.1 Current portion of silicosis settlement costs (4.6 ) — Non-current 16.6 25.1 1 The principal health risks associated with Gold Fields’ mining operations in South Africa arise from occupational exposure to silica dust, noise, heat and certain hazardous chemicals. The most significant occupational diseases affecting Gold Fields’ workforce include lung diseases (such as silicosis, tuberculosis, a combination of the two and chronic obstructive airways disease (“COAD”) as well as noise induced hearing loss (“NIHL”)). A consolidated application was brought against several South African mining companies, including Gold Fields, for certification of a class action on behalf of current or former mineworkers (and their dependants) who have allegedly contracted silicosis and/or tuberculosis while working for one or more of the mining companies listed in the application. This matter was previously disclosed as a contingent liability as the amount could not be estimated reliably. As a result of the ongoing work of the Gold Working Group (comprising African Rainbow Minerals, Anglo American SA, AngloGold Ashanti, Gold Fields, Harmony and Sibanye-Stillwater) (the “GWG Parties”) and engagements with affected stakeholders since 31 December 2016, Gold Fields was able to realibly estimate its share in the estimated cost in relation to the GWG Parties of a possible settlement of the class action claims and related costs during 2017. As a result, Gold Fields provided an amount of US$21.2 million (R297.1 million) (2018: US$25.1 million (R367.8 million)) for this obligation in the statement of financial position at 31 December 2019. The nominal amount of this provision is US$29.2 million (R408.4 million). Gold Fields believes that this remains a reasonable estimte of its share of the settlement of the class action claims and related costs. The assumptions that were made in the determination of the provision include silicosis prevalence rates, estimated settlement per claimant, benefit take-up

Long-term Incentive Plan (Table

Long-term Incentive Plan (Tables)	12 Months Ended
Long-term Incentive Plan (Tables)	Dec. 31, 2019
Text block [abstract]
Summary of Long-tem Incentive Plan	26. LONG-TERM INCENTIVE PLAN Opening balance 2.1 18.1 Charge to income statement 9.1 1.1 Payments — (17.8 ) Translation adjustment 0.3 0.7 Balance at end of the year 2 11.5 2.1 2 Senior and middle management receive awards under the LTIP. The performance conditions of the LTIP are approved annually by the Remuneration Committee. The expected timing of the cash outflows in respect of each grant is at the end of three years after the original award was made.

Trade and Other Payables (Table

Trade and Other Payables (Tables)	12 Months Ended
Trade and Other Payables (Tables)	Dec. 31, 2019
Text block [abstract]
Summary of Trade and Other Payables	UNITED STATES DOLLAR 2019 2018 1 2017 1 27. TRADE AND OTHER PAYABLES Trade payables 138.1 60.4 105.4 Accruals and other payables 195.4 236.7 238.8 Payroll payables 36.8 44.3 51.7 Gold and foreign exchange derivative contracts 2 127.6 22.6 3.3 Leave pay accrual 44.7 43.0 42.5 Interest payable on loans 11.5 10.5 10.2 Damang - contract termination 3 40.3 — 11.2 Total trade and other payables 594.4 417.5 463.1 1 Refer note 42. 2 Comprises US$78.3 million (2018: US$12.3 million) relating to Australian gold derivative contracts, US$12.6 million (2018: US$1.6 million) relating to gold derivative contracts at South Deep, US$36.4 million (2018: US$nil) relating to the gold derivative contracts at Ghana and US$0.3 million (2018: US$8.7 million) relating to Australian foreign exchange derivative contracts. Refer note 38 for further details. 3 Refer note 12.2 for further details.

Cash Generated by Operations (T

Cash Generated by Operations (Tables)	12 Months Ended
Cash Generated by Operations (Tables)	Dec. 31, 2019
Text block [abstract]
Summary of Cash Generated By Operations	28. CASH GENERATED BY OPERATIONS Profit/(loss) from continuing operations 174.7 (344.8 ) (20.8 ) Mining and income taxation 175.6 (65.9 ) 173.2 Royalties 73.7 62.5 62.0 Interest expense 132.6 91.8 91.2 Interest received (6.6 ) (6.8 ) (5.1 ) Amortisation and depreciation 610.0 668.4 748.1 Interest expense - environmental rehabilitation 11.7 11.7 12.1 Non-cash 13.4 (0.9 ) (13.5 ) Interest received - environmental trust funds (0.7 ) (0.6 ) (0.5 ) Impairment, net of reversal of impairment of investments and assets 9.8 520.3 200.2 Write-off 30.0 37.7 51.5 (Profit)/loss on disposal of assets (1.2 ) 51.6 (4.0 ) Gain on acquisition of Asanko — (51.8 ) — Unrealised loss/(gain) on derivative contracts 112.6 36.6 (20.7 ) Fair value (gain)/loss on Maverix warrants (4.2 ) (3.8 ) 0.4 Profit on disposal of Maverix (14.6 ) (4.0 ) — Silicosis settlement costs (1.6 ) (4.5 ) 30.2 Share-based payments 20.5 37.5 26.8 Long-term incentive plan expense 9.1 1.1 5.0 Payment of long-term incentive plan — (17.8 ) (11.5 ) Borrowing costs capitalised (43.4 ) (17.5 ) (22.9 ) Share of results of equity-accounted investees, net of taxation (4.5 ) 0.2 (0.3 ) Other 5 9 (3.0 ) (14.9 ) Total cash generated by operations 1,302.8 998.0 1,286.5

Change in Working Capital (Tabl

Change in Working Capital (Tables)	12 Months Ended
Change in Working Capital (Tables)	Dec. 31, 2019
Text block [abstract]
Summary of Change in Working Capital	UNITED STATES DOLLAR 2019 2018 1 2017 1 29. CHANGE IN WORKING CAPITAL Inventories (56.2 ) 0.8 (55.1 ) Trade and other receivables (5.6 ) (0.5 ) (19.6 ) Trade and other payables 37.2 (32.2 ) (15.2 ) Total change in working capital (24.6 ) (31.9 ) (89.9 ) 1 Refer note 42.

Royalties Paid (Tables)

Royalties Paid (Tables)	12 Months Ended
Royalties Paid (Tables)	Dec. 31, 2019
Text block [abstract]
Summary of Royalty Paid	30. ROYALTIES PAID Amount owing at beginning of the year (12.5 ) (16.3 ) (19.8 ) Royalties (73.7 ) (62.5 ) (62.0 ) Amount owing at end of the year 13.9 12.5 16.3 Translation — 0.8 (0.5 ) Total royalties paid (72.3 ) (65.5 ) (66.0 ) 1 Refer note 42.

Taxation Paid (Tables)

Taxation Paid (Tables)	12 Months Ended
Taxation Paid (Tables)	Dec. 31, 2019
Text block [abstract]
Detailed Information About Tax Paid	31. TAXATION PAID Amount owing at beginning of the year (0.9 ) (46.7 ) (87.0 ) SA and foreign current taxation recognised in profit or loss (190.6 ) (145.7 ) (204.7 ) SA and foreign current taxation recognised in OCI (14.7 ) — — Amount owing at end of the year 24.8 0.9 46.7 Translation (0.4 ) 0.8 (4.4 ) Total taxation paid (181.8 ) (190.7 ) (249.4 ) 1 Refer note 42.

Retirement Benefits (Tables)

Retirement Benefits (Tables)	12 Months Ended
Retirement Benefits (Tables)	Dec. 31, 2019
Text block [abstract]
Summary of Retirement Benefits	32. RETIREMENT BENEFITS All employees are members of various defined contribution retirement schemes. Contributions to the various retirement schemes are fully expensed during the period in which they are incurred. Retirement benefit costs 27.0 32.8 33.7 1 Refer note 42.

Lease Liabilities (Tables)

Lease Liabilities (Tables)	12 Months Ended
Lease Liabilities (Tables)	Dec. 31, 2019
Text block [abstract]
Summary of Finance Lease Liabilities	33. LEASE LIABILITIES (2018: FINANCE LEASE LIABILITIES) Balance at the beginning of the year 88.6 — Leases recognised on adoption of IFRS 16 (refer note 41) 209.6 — Additions during the year (2018: finance lease additions) 1 67.3 96.2 Remeasurements of leases during the year 2 5.9 — Interest expense 18.6 0.2 Repayments (56.9 ) (2.5 ) Translation adjustment (0.2 ) (5.3 ) Balance at the end of the year 332.9 88.6 Current portion of lease liability (45.2 ) (8.5 ) Non-current 287.7 80.1 Lease liabilities are payable as follows: Future minimum lease payments - within one year 63.9 11.6 - later than one and not later than five years 178.2 41.5 - later than five years 205.3 58.4 Total 447.4 111.5 Interest - within one year 18.7 3.1 - later than one and not later than five years 55.2 11.5 - later than five years 40.6 8.3 Total 114.5 22.9 Present value of minimum lease payments - within one year 45.2 8.5 - later than one and not later than five years 123.0 30.0 - later than five years 164.7 50.1 Total 332.9 88.6 1 The additions in 2019 relate mainly to the gas fired power plant and solar farm portion of the power purchase agreement at Agnew (2018: Power purchase agreement at Gruyere). 2 The remeasurements relate mainly to leases at the Group’s Australian operations that have variable payments linked to the Australian consumer price index (“CPI”).

Commitments (Tables)

Commitments (Tables)	12 Months Ended
Commitments (Tables)	Dec. 31, 2019
Text block [abstract]
Schedule of Commitments	UNITED STATES DOLLAR 2019 2018 34. COMMITMENTS Capital expenditure Contracted for 4 7.9 50.0 Operating leases 1 - within one year — 76.7 - later than one and not later than five years — 256.5 - later than five years — 324.2
Schedule of Lease Contracts	31 December 2019 Undiscounted 2 Non-lease 3 Fully variable 4 Total Lease contracts - within one year 63.9 98.7 502.3 664.9 - later than one and not later than five years 178.2 290.1 1,410.3 1,878.6 - later than five years 205.3 83.3 21.7 310.3 447.4 472.1 1,943.3 2,853.8

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
Financial Instruments (Tables)	Dec. 31, 2019
Text block [abstract]
Summary of Carrying Amounts and Fair Values of Financial Assets and Financial Liabilities	The following tables show the carrying amounts and fair values of financial assets and financial liabilities. United States Dollar Carrying amount Fair value Figures in millions unless otherwise stated Fair value Fair value Financal Other Total Total 2019 Financial assets measured at fair value - Environmental trust funds 7.2 — — — 7.2 7.2 - Trade receivables from provisional copper sales 22.8 — — — 22.8 22.8 - Investments — 47.9 — — 47.9 47.9 - Asanko redeemable preference shares — 95.5 — — 95.5 95.5 - Warrants 11.7 — — — 11.7 11.7 - Oil derivatives contracts (2018: Gold, copper and oil) 1.1 — — — 1.1 1.1 Total 42.8 143.4 — — 186.2 186.2 Financial assets not measured at fair value - Environmental trust funds — — 62.3 — 62.3 62.3 - Trade and other receivables — — 51.4 — 51.4 51.4 - Cash and cash equivalents — — 515.0 — 515.0 515.0 Total — — 628.7 — 628.7 628.7 Financial liabilities measured at fair value - Gold and foreign exchange derivative contracts 127.6 — — — 127.6 127.6 Total 127.6 — — — 127.6 127.6 Financial liabilities not measured at fair value - Borrowings — — — 1,845.8 1,845.8 1,952.4 - Trade and other payables — — — 385.3 385.3 385.3 - Finance lease liabilities — — — 332.9 332.9 332.9 Total — — — 2,564.0 2,564.0 2,670.6 2018 Restated 1 Financial assets measured at fair value - Environmental trust funds 6.5 — — — 6.5 6.5 - Trade receivables from provisional copper sales 15.3 — — — 15.3 15.3 - Investments — 93.1 — — 93.1 93.1 - Asanko redeemable preference shares — 132.9 — — 132.9 132.9 - Warrants 9.3 — — — 9.3 9.3 - Gold, copper and oil derivative contracts 8.3 — — — 8.3 8.3 Total 39.4 226.0 — — 265.4 265.4 Financial assets not measured at fair value - Environmental trust funds — — 54.3 — 54.3 54.3 - Trade and other receivables — — 49.6 — 49.6 49.6 - Cash and cash equivalents — — 219.7 — 219.7 219.7 Total — — 323.6 — 323.6 323.6 Financial liabilities measured at fair value - Gold, copper and foreign exchange derivative contracts 22.6 — — — 22.6 22.6 Total 22.6 — — — 22.6 22.6 Financial liabilities not measured at fair value - Borrowings — — — 1,906.8 1,906.8 1,897.0 - Trade and other payables — — — 307.6 307.6 307.6 - Finance lease liabilities — — — 88.6 88.6 88.6 Total — — — 2,303.0 2,303.0 2,293.2
Summary of Assets and Liabilities Measured at Fair Value by Level within Fair Value Hierarchy	The following table sets out the Group’s financial assets and financial liabilities by level within the fair value hierarchy at the reporting date: United States Dollar 2019 2018 Restated 1 Figures in millions unless otherwise stated Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Financial assets measured at fair value Environmental trust funds 7.2 — 7.2 — 6.5 — 6.5 — Trade receivables from provisional copper sales 22.8 — 22.8 — 15.3 — 15.3 — Investments - listed 47.9 47.9 — — 93.0 93.0 — — Investments - unlisted — — — — 0.1 — — 0.1 Asanko redeemable preference shares 95.5 — — 95.5 132.9 — — 132.9 Warrants 11.7 — 11.7 — 9.3 — 9.3 — Oil derivative contracts 1.1 — 1.1 — 4.7 — 4.7 — Copper derivative contracts — — — — 1.2 — 1.2 — Gold derivative contracts — — — — 2.4 — 2.4 — Financial assets not measured at fair value Environmental trust funds 62.3 — 62.3 — 54.3 — 54.3 — Financial liabilities measured at fair value Foreign exchange derivative contracts 0.3 — 0.3 — 8.7 — 8.7 — Gold derivative contracts 127.3 — 127.3 — 13.9 — 13.9 — Financial liabilities not measured at fair value Borrowings 1,952.4 1,700.4 — 252.0 1,897.0 839.6 — 1,057.4

Risk Management Activities (Tab

Risk Management Activities (Tables)	12 Months Ended
Risk Management Activities (Tables)	Dec. 31, 2019
Statement [LineItems]
Summary of gain loss from derivative financial instruments	The following table summarises the (loss)/gain on financial instruments recognised in profit or loss for the derivative financial instruments entered into by Gold Fields: UNITED STATES DOLLAR Figures in millions unless otherwise stated 2019 2018 2017 South Deep gold hedge (25.8 ) (3.2 ) 10.9 Ghana gold hedge (37.7 ) 22.0 — Ghana oil hedge 2.5 1.5 8.8 Peru copper hedge — 9.2 (5.7 ) Australia gold hedge (178.8 ) (4.6 ) 15.3 Australia oil hedge 2.3 1.4 5.1 Australia foreign currency hedge (7.2 ) (9.1 ) — Maverix warrants – gain on fair value 4.2 3.8 — Gain on fair value on disposal of Maverix 2.5 — — (238.0 ) 21.0 34.4
Credit risk [member]
Statement [LineItems]
Schedule of Combined Maximum Credit Risk Exposure	The combined maximum credit risk exposure of the Group is as follows: United States Dollar Figures in millions unless otherwise stated 2019 2018 Restated 1 Environmental trust funds 69.5 60.8 Trade and other receivables 2 74.2 64.9 Cash and cash equivalents 515.0 219.7 1 Refer note 42. 2 Trade and other receivables above exclude VAT, import duties, prepayments, payroll receivables, derivative contracts and diesel rebates amounting to US$62.9 million (2018: US$73.7 million).
Summary of the Exposure to Credit Risk for Trade Receivables by Geographic Region	At 31 December 2019, the exposure to credit risk for trade receivables by geographic region was as follows: 2019 2018 Restated 1 South Africa — — Ghana 0.8 — Australia — — Peru 22.8 15.3 Total trade receivables 23.6 15.3 1 Refer note 42.
Schedule of Contractually Due Undiscounted Cash Flows Resulting from Maturities of All Financial Liabilities, Including Interest Payments	The following are the contractually due undiscounted cash flows resulting from maturities of all financial liabilities, including interest payments: United States Dollar Figures in millions unless otherwise stated Within one Between one After five Total 2019 Trade and other payables 385.3 — — 385.3 Gold and foreign exchange derivative contracts 127.6 — — 127.6 Borrowings 1 - US$ borrowings 2 - Capital 3 685.9 500.0 500.0 1,685.9 - Interest 81.0 209.1 134.0 424.1 - A$ borrowings 4 - Capital — 168.5 — 168.5 - Interest 5.5 2.2 — 7.7 Environmental rehabilitation costs 6 11.9 28.4 396.0 436.3 Finance lease liabilities 63.9 178.2 205.3 447.4 South Deep dividend 1.4 3.8 3.3 8.5 Total 1,362.5 1,090.2 1,238.6 3,691.3 2018 Restated 7 Trade and other payables 307.6 — — 307.6 Gold, copper and foreign exchange derivative contracts 22.6 — — 22.6 Borrowings 1 - US$ borrowings 2 - Capital 3 — 1,452.9 — 1,452.9 - Interest 69.3 53.2 — 122.5 - A$ borrowings 4 - Capital — 316.5 — 316.5 - Interest 13.8 19.4 — 33.2 - Rand borrowings 5 - Capital 92.5 47.9 — 140.4 - Interest 12.1 1.2 — 13.3 Environmental rehabilitation costs 6 13.0 33.7 353.2 399.9 Finance lease liabilities 11.6 41.5 58.4 111.5 South Deep dividend 1.4 4.1 4.1 9.6 Total 543.9 1,970.4 415.7 2,930.0 1 Spot Rate: R14.00 = US$1.00 (2018: R14.63 = US$1.00). 2 USD borrowings - Spot LIBOR (one month fix) rate adjusted by specific facility agreement: 1.7625% (2018: 2.50625% (one month fix)). 3 The capital amounts of the US$1 billion notes issue, US$500 million 5-year 10-year 4 AUD borrowings - Spot Bank Bill Swap Bid Rate (BBSY) (one month fix) rate adjusted by specific facility agreement: 0.92% (2018: 2.02%). 5 ZAR borrowings - Spot JIBAR (one month fix) rate adjusted by specific facility agreement for 2018: 6.942% and bank overnight borrowing rate on uncommitted credit facilities for 2018: 8.1%. 6 Although environmental rehabilitation costs do not meet the definition of a financial liability, the Group included the gross closure cost estimate in the undiscounted cash flows as it represents a future cash outflow (refer note 25.1). In South Africa and Ghana, US$69.5 million (2018: US$60.8 million) of the environmental rehabilitation costs is funded through the environmental trust funds. 7 Refer note 42.
Equity price risk [member]
Statement [LineItems]
Summary of Effect of Change in Finance Expense on Group's Shareholders' Equity	The table below summarises the impact of increases/decreases of the exchanges on the Group’s shareholders’ equity in case of shares. The analysis is based on the assumption that the share prices quoted on the exchange have increased/decreased with all other variables held constant and the Group’s investments moved according to the historical correlation with the index. United States Dollar Senstivity to equity security price (Decrease)/increase in equity price Figures in millions unless otherwise stated (10.0%) (5.0%) 5.0% 10.0% 2019 (Decrease)/increase in OCI 1 (4.8 ) (2.4 ) 2.4 4.8 2018 (Decrease)/increase in OCI 1 (9.3 ) (4.7 ) 4.7 9.3 1 Spot rate: R14.00 = US$1.00 (2018: R14.63 = US$1.00) The tables below summarise the impact of increases/decreases on the Group’s shareholders’ equity in case of changes in the key inputs used to value the preference shares. The first analysis is based on the assumption that the market related discount rate have increased/decreased with all other variables held constant. The second analysis is based on the assumption that the timing of the cash flows used in the life-of-mine United States Dollar Sensitivity to preference share price risk (Decrease)/increase in discount rate Figures in millions unless otherwise stated (1.0%) (2.0%) 2.0% 1.0% 2019 Increase/(decrease) in OCI 3.7 7.6 (6.7 ) (3.4 ) 2018 Increase/(decrease) in OCI 3.4 6.8 (6.8 ) (3.4 ) Sensitivity to preference share price risk (Decrease)/increase in timing of cash flows Figures in millions unless otherwise stated 1 year earlier 1 year later 2019 Increase/(decrease) in OCI 4.9 (7.5 ) 2018 Increase/(decrease) in OCI 11.1 (10.1 )
Sensitivity to interest rates [member]
Statement [LineItems]
Summary of Effect of Change in Finance Expense on Group's Profit or Loss had LIBOR and Prime Differed as Indicated	The table below summarises the effect of a change in finance expense on the Group’s profit or loss had LIBOR, JIBAR, Prime and BBSY differed as indicated. The analysis is based on the assumption that the applicable interest rate increased/decreased with all other variables held constant and is calculated on the weighted average borrowings for the year. All financial instruments with fixed interest rates that are carried at amortised cost are not subject to the interest rate sensitivity analysis. United States Dollar Sensitivity to interest rates Change in interest expense for a nominal change in interest rates Figures in millions unless otherwise stated (1.5%) (1.0%) (0.5%) 0.5% 1.0% 1.5% 2019 Sensitivity to LIBOR interest rates (5.1 ) (3.4 ) (1.7 ) 1.7 3.4 5.1 Sensitivity to BBSY interest rates 2 (0.7 ) (0.4 ) (0.2 ) 0.2 0.4 0.7 Sensitivity to JIBAR and prime interest rates 3 (0.8 ) (0.5 ) (0.3 ) 0.3 0.5 0.8 Change in finance expense (6.6 ) (4.3 ) (2.2 ) 2.2 4.3 6.6 2018 Restated 1 Sensitivity to LIBOR interest rates (9.8 ) (6.5 ) (3.3 ) 3.3 6.5 9.8 Sensitivity to BBSY interest rates 2 (4.9 ) (3.3 ) (1.6 ) 1.6 3.3 4.9 Sensitivity to JIBAR and prime interest rates 3 (1.2 ) (0.8 ) (0.4 ) 0.4 0.8 1.2 Change in finance expense (15.9 ) (10.6 ) (5.3 ) 5.3 10.6 15.9 1 Refer note 42. 2 Average rate: A$0.70 = US$1.00 (2018: A$0.75 = US$1.00) 3 Average rate: R14.46 = US$1.00 (2018: R13.2 = US$1.00)
Schedule Of Effect Of A Change In Loss On Financial Instruments To Value The Gold Derivative Contracts	Commodity price hedging sensitivity The tables below summarise the effect of a change in the loss on financial instruments on the Group’s profit or loss in case of changes in the key inputs used to value the gold derivative contracts included in trade and other payables. The first analysis is based on the assumption that the gold forward prices have increased/decreased with all other variables held constant. The second analysis is based on the assumption that the interest rates increased/decreased with all other variables held constant. United States Dollar Sensitivity to gold forward prices (Decrease)/increase in gold forward prices Figures in millions unless otherwise stated (US$150) (US$100) (US$50) US$50 US$100 US$150 2019 (Increase)/decrease in loss on financial instruments 120.8 85.7 45.4 (48.7 ) (99.4 ) (151.1 ) United States Dollar Sensitivity to interest rates (Decrease)/increase in interest rates Figures in millions unless otherwise stated (1.5%) (1.0%) (0.5%) 0.5% 1.0% 1.5% 2019 (Increase)/decrease in loss on financial instruments 5.9 4.0 2.0 (2.1 ) (4.2 ) (6.3 )

Capital Management (Tables)

Capital Management (Tables)	12 Months Ended
Capital Management (Tables)	Dec. 31, 2019
Text block [abstract]
Summary of Reconciliation of Net Operating Profit	2019 2018 Restated 1 Notes US$ million US$ million Borrowings 24 1,845.8 1,906.8 Less: Cash and cash equivalents 21 515.0 219.7 Net debt (pre-IFRS 1,330.8 1,687.1 Add: Lease liability - IFRS 16 332.9 Net debt (post-IFRS 16) 1,663.7 Adjusted EBITDA (pre-IFRS 1,233.3 1,111.6 Add: Lease payments 56.9 Adjusted EBITDA (post-IFRS 16) 1,290.2 Net debt to adjusted EBITDA (pre-IFRS 1.08 1.52 Net debt to adjusted EBITDA (post-IFRS 16) 1.29 Reconciliation of profit/(loss) for the year to adjusted EBITDA: Profit/(loss) for the year 174.7 (344.8 ) Mining and income taxation 175.6 (65.9 ) Royalties 73.7 62.5 Finance expense 102.2 88.0 Investment income (7.3 ) (7.8 ) Loss/(gain) on financial instruments 238.0 (21.0 ) Foreign exchange loss/(gain) 5.2 (6.4 ) Amortisation and depreciation 2 610.0 668.4 Share-based payments 20.5 37.5 Long-term incentive plan 9.1 1.1 Restructuring costs 0.6 113.9 Silicosis settlement costs (1.6 ) (4.5 ) Impairment, net of reversal of impairment of investments and assets 9.8 520.3 (Profit)/loss on disposal of assets (1.2 ) 51.6 Share of results of equity accounted investees, net of taxation (3.1 ) 13.1 Rehabilitation expense/(income) 7 13.4 (0.9 ) Realised (loss)/gain on derivative contracts (132.1 ) 53.8 Gain on acquisition of Asanko 15 — (51.8 ) Lease repayments (56.9 ) — Other 2.7 4.5 1,233.3 1,111.6 1 Refer note 42.

Related Parties (Tables)

Related Parties (Tables)	12 Months Ended
Related Parties (Tables)	Dec. 31, 2019
Non Executive Directors [member]
Statement [LineItems]
Summary of Remuneration to Related Parties	The following table summarises the remuneration for NEDs for the years ended 31 December 2019 and 2018: Board fees Directors Fees Committee Fees Total C Carolus 215.8 — 215.8 R Menell 140.5 — 140.5 Y Suleman 70.8 65.7 138.5 P Bacchus 79.3 72.9 152.2 S Reid 3 79.3 62.9 142.2 T Goodlace 70.8 35.8 106.6 A Andani 4 79.3 46.0 125.3 C Letton 79.3 51.6 130.9 P Mahanyele-Dabengwa 2 70.8 30.0 100.8 Total - 2019 885.9 364.9 1,250.8 C Carolus 231.3 — 231.3 R Menell 150.5 — 150.5 D Ncube 1 30.7 21.3 52.0 Y Suleman 75.9 72.4 148.3 P Bacchus 80.6 61.1 141.7 S Reid 80.6 55.4 136.0 T Goodlace 75.9 38.4 114.3 A Andani 80.6 40.2 120.8 C Letton 80.6 49.8 130.4 P Mahanyele-Dabengwa 2 25.9 2.7 28.6 Total - 2018 912.6 341.3 1,253.9 1 Retired from the Board at end May 2018 2 Appointed to the Board in September 2018. 3 Steven Reid is a director of Gold Fields Netherlands Services BV and Gold Fields Orogen Holdings (BVI) Limited. He received US$14,351 (2018: US$nil) from 1 August 2019 for duties performed on behalf of these entities. 4 Alhassan Andani is a director of GF Ghana Limited and Abosso Goldfields Limited. He received US$70,021 (2018: US$141,605) for duties performed on behalf of these entities.
Key management personnel of entity or parent [member]
Statement [LineItems]
Summary of Remuneration to Related Parties	The following table summarises the remuneration for executive directors and prescribed officers for the years ended 31 December 2019 and 2018: (Details of the remuneration are further described in the Remuneration Report) Salary 1 Pension Cash 2 Other 3 Share-based 4 LTIP 4 Total Executive directors N Holland 1,226.8 24.2 913.4 0.1 1,936.5 — 4,101.0 P Schmidt 608.3 1,331.7 — 2,487.4 1,835.1 3,268.2 — 6,588.4 Prescribed officers L Rivera 5 553.5 58.5 142.6 241.8 780.9 — 1,777.3 A Baku 6 839.7 193.1 533.3 103.8 1,573.1 — 3,243.0 R Butcher 363.4 36.3 218.0 — 501.1 — 1,118.8 N Chohan 352.8 24.2 242.0 1.6 649.7 — 1,270.3 B Mattison 7 441.4 24.2 298.6 — 969.8 — 1,734.0 T Harmse 354.3 25.1 243.5 5.4 680.5 — 1,308.8 A Nagaser 234.2 24.6 160.1 1.9 405.2 — 826.0 S Mathews 8 472.1 54.5 311.6 7.3 697.0 — 1,542.5 M Preece 514.3 25.1 271.8 — 362.7 — 1,173.9 R Bardien 9 285.0 24.2 116.9 — 268.4 — 694.5 4,410.7 489.8 2,538.4 361.8 6,888.4 — 14,689.1 Total - 2019 6,245.8 560.1 3,951.2 363.8 10,156.6 — 21,277.5 Executive directors N Holland 1,251.6 26.5 661.5 — 1,654.8 25.5 3,619.9 P Schmidt 626.6 48.2 306.2 2.1 876.2 25.3 1,884.5 1,878.2 74.7 967.7 2.1 2,531.0 50.8 5,504.4 Prescribed officers L Rivera 5 668.8 72.8 132.9 386.8 202.6 — 1,463.9 A Baku 6 808.0 185.8 634.8 68.0 990.4 25.5 2,712.5 R Butcher 384.5 37.3 192.4 — 238.5 — 852.7 N Chohan 367.2 26.5 213.9 1.8 341.1 6.9 957.5 B Mattison 7 453.6 26.5 271.9 2.5 545.1 16.4 1,316.0 T Harmse 369.7 26.5 215.3 7.8 433.5 13.9 1,066.6 A Nagaser 243.3 27.0 131.1 0.4 185.8 5.0 592.7 S Mathews 8 438.2 29.5 289.4 4.9 399.2 10.9 1,172.2 M Preece 541.7 26.5 168.8 0.4 113.0 — 850.4 R Bardien 9 274.3 24.3 150.5 106.1 — — 555.2 4,549.3 482.6 2,401.0 578.7 3,449.2 78.6 11,539.6 Total - 2018 6,427.5 557.3 3,368.7 580.8 5,980.2 129.4 17,044.0 1 The total US$ amounts paid for 2019, and included in salary were as follows : NJ Holland US$0 (2018: US$406,700), P Schmidt US$0 (2018: US$124,150) and B Mattison US$0 (2017: US$88,217). 2 The annual bonuses for the year ended 31 December 2018 and 31 December 2019 were paid in February 2019 and February 2020, respectively. 3 Other payments include special bonuses and incidental payments unless otherwise stated. 4 The share-based payment and LTIP expenses are calculated in terms of IFRS and are not the cash amounts paid. For details of the cash amounts paid, refer the remuneration report. 5 Other payments for 2018 relate to cash in lieu of 2016 share award paybale upon vesting in March 2019. 6 Other payments for 2018 relate to a profit share bonus payment. 7 Other payments for 2018 relate to a service award. 8 Other payments for 2018 relate to a bonus payment in lieu of most improved operation bonus scheme. 9 Appointed on 1 February 2018. Other payments for 2018 relate to a sign-on-bonus.

Changes in Significant Accoun_2

Changes in Significant Accounting Policies (Tables)	12 Months Ended
Changes in Significant Accounting Policies (Tables)	Dec. 31, 2019
Text block [abstract]
Lease Liabilities For Discount Lease Payments And Discounted Rate	When measuring lease liabilities for leases that were classified as operating leases, the Group discounted lease payments using the followings discount rates at 1 January 2019: Discount rate Australia 3.46% - 6.39 % Ghana 6.83% - 7.68 % South Africa 9.84 % Peru 4.50% - 4.76 % Corporate and other 4.0% - 10.25 %
Reconciliation of Operating lease commitments	Reconciliation of operating lease commitments at 31 December 2018 to the lease liabilities recognised at 1 January 2019: US$ Operating lease commitments at 31 December 2018 as disclosed under IAS 17 1 657.4 Reconciled as follows: Discounting (91.0 ) Non-lease (356.8 ) Lease liability recognised at 1 January 2019 209.6 1 The operating lease commitments in 2018 consisted mainly of power purchase agreements entered into at Tarkwa, Damang, Granny Smith and Gruyere. Included in these amounts were payments for non-lease IFRS 15 Revenue from contracts with customers The Group applied IFRS 15 from 1 January 2018 The Group adopted IFRS 15 using the cumulative effect method (without practical expedients), with the effect of initially applying this standard recognised at the date of initial application (i.e. 1 January 2018). Accordingly, the information presented for 2017 has not been restated – i.e. it is presented, as previously reported, under IAS 18 and related interpretation s IFRS 9 Financial instruments The Group applied IFRS 9 from 1 January 2018 The Group has used an exemption not to restate comparative information for prior periods with respect to classification and measurement requirements. Differences in the carrying amounts of financial assets and financial liabilities resulting from the adoption of IFRS 9 were immaterial and therefore no adjustments were required to be recognised in retained earnings and reserves as at 1 January 2018.

Correction Of Error Relating _2

Correction Of Error Relating To Year-End Cut-Off (Tables)	12 Months Ended
Correction Of Error Relating To Year-End Cut-Off (Tables)	Dec. 31, 2019
Text block [abstract]
Schedule Of Error Corrections and Prior Period Adjustments	(a) Consolidated statement of financial position 31 December 2018 1 January 2018 As Adjustments As As Adjustments As Cash and cash equivalents 399.7 (180.0 ) 219.7 479.0 (85.2 ) 393.8 Trade and other receivables 153.2 (14.6 ) 138.6 201.9 (30.1 ) 171.8 Other 5,551.4 — 5,551.4 5,939.2 — 5939.2 Total assets 6,104.3 (194.6 ) 5,909.7 6,260.1 (115.3 ) 6,504.8 Borrowings 1,925.3 (111.0 ) 1,814.3 1,587.9 — 1,587.9 Current portion of borrowings 86.3 6.2 92.5 193.6 0.9 194.5 Trade and other payables 503.0 (85.5 ) 417.5 548.5 (85.4 ) 463.1 Taxation payable 5.2 (4.3 ) 0.9 77.5 (30.8 ) 46.7 Other 877.6 — 877.6 809.6 — 809.6 Total liabilities 3,397.4 (19.46 ) 3,202.8 3,217.1 (115.3 ) 3,101.8 Total equity 2,706.9 — 2,706.9 3,403.0 — 3,403.0 Net debt 1,611.9 75.2 1,687.1 1,302.5 86.1 1,388.6 Adjusted EBITDA 1,111.6 — 1,111.6 1,263.7 — 1,263.7 Net debt to adjusted EBITDA 1.45 1.52 1.03 1.10 (b) Consolidated statement of cash flows 31 December 2018 1 January 2018 As Adjustments As As Adjustments As Change in working capital (16.3 ) (15.6 ) (31.9 ) (69.4 ) (20.5 ) (89.9 ) Taxation paid (217.2 ) 26.5 (190.7 ) (239.5 ) (8.9 ) (249.4 ) Other 791.3 — 791.3 1,071.3 — 1,071.3 Cash flows from operating activities 557.8 10.9 568.7 762.4 (30.4 ) 732.0 Cash flows from investing activities (886.8 ) — (886.8 ) (908.6 ) — (908.6 ) Loans raised 691.7 (1.7 ) 690.0 779.7 7.9 787.6 Loans repaid (431.9 ) (104.0 ) (535.9 ) (695.5 ) (7.0 ) (702.5 ) Other (2.5 ) — (2.5 ) — — — Cash flows from financing activities 257.3 (105.7 ) 151.6 84.2 0.9 85.1 Net cash utilised (71.7 ) (94.8 ) (166.5 ) (62.0 ) (29.5 ) (91.5 ) Effect of exchange rate fluctuation on cash held (7.6 ) — (7.6 ) 14.3 — 14.3 Cash and cash equivalents at beginning of the year 479.0 (85.2 ) 393.8 526.7 (55.7 ) 471.0 Cash and cash equivalents at end of the year 399.7 (180.0 ) 219.7 479.0 (85.2 ) 393.8

Segment report (Tables)

Segment report (Tables)	12 Months Ended
Segment report (Tables)	Dec. 31, 2019
Text block [abstract]
Schedule of Segment Report	Financial summary - US$ million South Ghana Peru Australia South 1 Tarkwa Damang Asanko 2 Total Cerro St Ives Agnew Granny Smith Gruyere Total Australia Corporate and 3 Group Group INCOME STATEMENT for the year ended 31 December 2019 Revenue 314.8 720.4 288.3 153.3 1,162.0 399.0 505.0 304.6 383.8 51.2 1,244.6 — 3,120.4 2,967.1 Cost of sales (275.1 ) (497.2 ) (195.5 ) (133.4 ) (826.1 ) (255.0 ) (333.8 ) (224.9 ) (212.7 ) (28.2 ) (799.7 ) (10.9 ) (2,166.9 ) (2,033.5 ) Cost of sales before gold invetory change and amortisation and depreciation (245.9 ) (329.8 ) (150.4 ) (88.7 ) (568.9 ) (168.4 ) (231.3 ) (164.6 ) (157.0 ) (19.1 ) (572.1 ) 0.1 (1,555.2 ) (1,466.5 ) Gold inventory change 3.7 14.4 8.8 (1.7 ) 21.5 6.0 2.5 2.6 (0.3 ) 5.4 10.2 0.0 41.3 43.0 Amortisation and depreciation (32.9 ) (181.8 ) (53.9 ) (43.0 ) (278.7 ) (92.6 ) (105.0 ) (62.9 ) (55.4 ) (14.5 ) (237.8 ) (11.0 ) (653.0 ) (610.0 ) Other costs (3.0 ) (12.8 ) (14.3 ) (8.0 ) (35.1 ) (4.7 ) (5.4 ) (0.4 ) (7.9 ) (0.4 ) (14.1 ) (20.8 ) (77.7 ) (69.7 ) Investment income 1.0 10.1 — — 10.1 — 0.4 0.3 0.3 — 1.0 (4.8 ) 7.3 7.3 Finance expense (6.6 ) (12.9 ) (14.3 ) — (27.2 ) (7.0 ) (2.7 ) (2.1 ) (2.7 ) (3.2 ) (10.7 ) (50.7 ) (102.2 ) (102.2 ) Loss on financial instruments (25.8 ) (23.8 ) (11.3 ) — (35.1 ) — (49.3 ) (28.7 ) (39.3 ) (8.5 ) (125.8 ) (51.3 ) (238.0 ) (238.0 ) Share-based payments 0.8 (3.4 ) (1.8 ) — (5.2 ) (1.1 ) (1.7 ) (1.2 ) (1.3 ) (0.3 ) (4.5 ) (10.5 ) (20.5 ) (20.5 ) Long-term incentive plan (1.0 ) (0.7 ) (0.3 ) — (1.0 ) (0.4 ) (0.5 ) (0.4 ) (0.4 ) (0.1 ) (1.4 ) (5.3 ) (9.1 ) (9.1 ) Exploration expense — — — — — (4.4 ) (10.0 ) (2.8 ) (17.0 ) (0.2 ) (30.0 ) (50.0 ) (84.4 ) (84.4 ) Profit on disposal of Maverix Metals Incorporated — — — — — — — — — — — 14.6 14.6 14.6 Restructuring costs (0.3 ) (0.3 ) — — (0.3 ) — — — — — — — (0.6 ) (0.6 ) Silicosis settlement costs — — — — — — — — — — — 1.6 1.6 1.6 Impairment and reversal of impairment of investments and assets, net — — — — — (0.2 ) — — — — — (9.6 ) (9.8 ) (9.8 ) Profit/(loss) on disposal of assets 0.7 0.2 0.1 — 0.3 — (0.4 ) 0.3 0.3 — 0.2 — 1.2 1.2 Royalties (1.6 ) (25.8 ) (10.3 ) (7.7 ) (43.8 ) (5.5 ) — 5 — 5 — 5 — 5 (30.5 ) — (81.4 ) (73.7 ) Mining and income tax 3.4 (52.4 ) (15.1 ) 0.2 (67.3 ) (37.6 ) — 5 — 5 — 5 — 5 (69.9 ) (4.0 ) (175.4 ) (175.6 ) Current taxation — (72.5 ) — — (72.5 ) (56.3 ) — 5 — 5 — 5 — 5 (55.7 ) (6.1 ) (190.6 ) (190.6 ) Deferred taxation 3.4 20.1 (15.1 ) 0.2 5.2 18.7 — 5 — 5 — 5 — 5 (14.2 ) 2.1 15.2 15.0 Profit/(loss) for the year 7.2 101.3 25.5 4.3 131.1 83.1 — 5 — 5 — 5 — 5 159.3 (201.7 ) 179.1 174.7 Profit/(loss) attributable to : - Owners of the parent 7.2 91.2 22.9 4.3 118.4 82.7 — 5 — 5 — 5 — 5 159.3 (201.7 ) 166.0 161.6 - Non-controlling — 10.1 2.6 — 12.7 0.4 — 5 — 5 — 5 — 5 — — 13.1 13.1 STATEMENT OF FINANCIAL POSITION Total assets (excluding deferred taxation) 875.0 1,773.8 440.5 — 2 2,214.3 744.4 792.7 567.0 419.2 650.4 2,429.3 32.8 6,295.8 6,295.8 Total liabilities (excluding deferred taxation) 1,357.9 276.9 361.6 — 2 638.5 232.1 160.1 114.9 122.0 600.8 997.8 (7.3 ) 3,219.0 3,219.0 Net deferred taxation (assets)/liabilities (201.0 ) 241.6 (0.1 ) — 2 241.5 66.4 — 5 — 5 — 5 — 5 114.7 (53.4 ) 168.1 168.1 Capital expenditure 6 33.1 125.5 76.3 26.8 228.6 56.1 98.3 76.1 72.2 72.1 318.7 2.8 639.3 612.5 The above is a geograhical analysis presented by location of assets. The Group’s continuing operations are primarily involved in gold mining, exploration and related activities. Activities are conducted and investments held both inside and outside South Africa. The segment results have been prepared and presented based on management’s reporting format. Gold mining operations are managed and internally reported based on the following geographical areas: in South Africa, South Deep mine, in Ghana, Tarkwa, Damang and Asanko mines, in Australia, St Ives, Agnew, Granny Smith and Gruyere and in Peru, the Cerro Corona mine. The Group also has exploration interests which are included in the “Corporate and other” segment. Refer to accounting policies on segment reporting on page xxx. Figures may not add as they are rounded independently. 1 The income statement and statement of financial position of South Deep is that of the operating mine and does not include any of the adjustments made in respect of the purchase price allocation relating to the acquisition of South Deep (refer note 14). South Deep Gold mine, being an unincorporated joint venture, is not liable for taxation. Taxation included in South Deep is indicative, as tax is provided in the holding companies at a rate of 29%. 2 For the purpose of the review of the segment by the CODM, Asanko’s income statement is proportionately consolidated in the Ghana segment. Equity Accounted Joint Venture carried at US$89.9 million. 3 “Corporate and other” represents the items to reconcile segment data to consolidated financial statement totals, including the elimination of intercompany transactions and balances as well as the Group’s exploration interests. This does not represent a separate segment as it does not generate revenue. Included in “Corporate and other” is the adjustment made in respect of the purchase price allocation of South Deep. 4 Other costs “Corporate and other” comprise share of profit of equity accounted investees, net of taxation of US$3.1 million, loss on buy-back 5 The Australian operations are entitled to transfer and off-set 6 Capital expenditure for the year ended 31 December 2019. 7 Includes revenue from the sale of copper amounting to US$165.1 million. 43. Segment report Financial summary—US$ million South r Ghana Peru Australia South 1 Tarkwa Damang Asanko 2 Total Cerro St Agnew/ Granny Total Gruyere Corporate 3 Group Group INCOME STATEMENT for the year ended 31 December 2018 Revenue 210.1 666.9 229.0 54.9 950.8 351.0 464.7 301.1 355.0 1,120.8 — — 2,632.7 2,577.8 Cost of sales (320.5 ) (477.1 ) (224.3 ) (52.9 ) (754.3 ) (236.6 ) (332.2 ) (236.4 ) (212.7 ) (781.3 ) — (3.1 ) (2,095.9 ) (2,043.0 ) Cost of sales before gold invetory change and amortisation and depreciation (262.0 ) (298.7 ) (143.5 ) (41.6 ) (483.8 ) (160.3 ) (200.9 ) (159.7 ) (166.3 ) (526.9 ) — 0.6 (1,432.4 ) (1,390.8 ) Gold inventory change (9.6 ) (10.1 ) 19.1 4.2 13.2 5.5 14.9 (1.7 ) (1.8 ) 11.4 — — 20.4 16.2 Amortisation and depreciation (48.9 ) (168.3 ) (99.9 ) (15.5 ) (283.7 ) (81.8 ) (146.2 ) (75.0 ) (44.6 ) (265.8 ) — (3.7 ) (683.9 ) (668.4 ) Other income/(costs) (6.3 ) (0.9 ) 8.4 (0.3 ) 7.2 1.5 4.5 9.1 1.1 14.8 (3.5 ) (44.5 ) (30.8 ) (30.5 ) Share-based payments (4.7 ) (6.8 ) (2.1 ) — (8.9 ) (4.3 ) (3.5 ) (2.6 ) (3.1 ) (9.2 ) — (10.4 ) (37.5 ) (37.5 ) Long-term incentive plan 0.1 0.4 — — 0.4 0.4 (0.2 ) — (0.2 ) (0.4 ) — (1.6 ) (1.1 ) (1.1 ) Exploration expense — — (0.4 ) — (0.4 ) (1.1 ) (18.2 ) (8.0 ) (11.0 ) (37.2 ) (0.5 ) (65.0 ) (104.2 ) (104.2 ) Restructuring costs (11.2 ) (88.8 ) (13.9 ) — (102.7 ) — — — — — — — (113.9 ) (113.9 ) Silicosis settlement costs — — — — — — — — — — — 4.5 4.5 4.5 Impairment and reversal of impairment of investments and assets, net (246.2 ) — — — — (1.9 ) — — — 0.0 — (272.2 ) (520.3 ) (520.3 ) Profit/(loss) on disposal of assets 1.0 (38.0 ) — — (38.0 ) — (0.3 ) (0.1 ) — (0.4 ) — (14.2 ) (51.6 ) (51.6 ) Investment income 0.9 8.3 — — 8.3 — 0.4 0.2 0.3 0.9 — (2.3 ) 7.8 7.8 Finance expense (9.6 ) (4.3 ) (9.8 ) — (14.1 ) (5.0 ) (2.5 ) (1.0 ) (1.0 ) (4.6 ) (0.2 ) (54.5 ) (88.0 ) (88.0 ) Gain on acquisition of Asanko — — — — — — — — — — — 51.8 51.8 51.8 Royalties (1.0 ) (21.2 ) (7.3 ) (2.8 ) (31.3 ) (5.1 ) — 5 — 5 — 5 (27.9 ) — — (65.3 ) (62.5 ) Mining and income tax 162.7 1.8 12.1 — 13.9 (56.4 ) — 5 — 5 — 5 (85.3 ) 1.2 29.8 65.9 65.9 Current taxation — (19.6 ) — — (19.6 ) (52.1 ) — 5 — 5 — 5 (89.6 ) 29.5 (13.9 ) (145.7 ) (145.7 ) Deferred taxation 162.7 21.4 12.1 — 33.5 (4.3 ) — 5 — 5 — 5 4.3 (28.3 ) 43.7 211.6 211.6 (Loss)/profit for the year (224.7 ) 40.1 (8.3 ) (1.1 ) 30.9 42.6 — 5 — 5 — 5 190.2 (3.0 ) (381.8 ) (345.9 ) (344.8 ) (Loss)/profit attributable to : - Owners of the parent (224.7 ) 36.1 (7.5 ) (1.1 ) 27.5 42.4 — 5 — 5 — 5 190.2 — 5 (381.8 ) (349.3 ) (348.2 ) - Non-controlling — 4.0 (0.8 ) — 3.2 0.2 — 5 — 5 — 5 — — 5 — 3.4 3.4 STATEMENT OF FINANCIAL POSITION at 31 December 2018 8 Total assets (excluding deferred taxation) 812.5 1,566.9 168.5 — 2 1,735.4 708.8 702.4 492.6 306.7 1,501.7 127.2 949.2 5,834.8 5,834.8 Total liabilities (excluding deferred taxation) 1,277.6 152.7 132.0 — 2 284.7 211.7 135.2 66.5 75.1 276.8 101.6 790.1 2,942.5 2,942.5 Net deferred taxation (assets)/liabilities (189.0 ) 261.7 (15.2 ) — 2 246.5 85.1 — 5 — 5 — 5 71.4 30.5 (59.1 ) 185.4 185.4 Capital expenditure 6 58.3 156.1 138.5 12.8 307.4 33.2 127.2 72.8 78.8 278.7 134.3 15.1 827.0 814.2 The above is a geograhical analysis presented by location of assets. The Group’s continuing operations are primarily involved in gold mining, exploration and related activities. Activities are conducted and investments held both inside and outside South Africa. The segment results have been prepared and presented based on management’s reporting format. Gold mining operations are managed and internally reported based on the following geographical areas: in South Africa, South Deep mine, in Ghana, Tarkwa and Damang mines, in Australia, St Ives, Agnew/ Lawlers, Granny Smith and Gruyere Gold project and in Peru, the Cerro Corona mine. Whilst the Gruyere Gold project does not meet the quantitative criteria for disclosure as a separate segment, it is expected to become a significant contributor to the Group’s performance in future years as the project is being developed. The Group also has exploration interests which are included in the “Corporate and other” segment. Refer to accounting policies on segment reporting on page xxx. US dollar figures may not add as they are rounded independently. 1 The income statement and statement of financial position of South Deep is that of the operating mine and does not include any of the adjustments made in respect of the purchase price allocation relating to the acquisition of South Deep (refer note 14). South Deep Gold mine, being an unincorporated joint venture, is not liable for taxation. Taxation included in South Deep is indicative, as tax is provided in the holding companies at a rate of 29%. 2 For the purpose of the review of the segment by the CODM, Asanko is proportionately consolidated in the Ghana segment. Equity Accounted Joint Venture carried at US$85.8 million. 3 “Corporate and other” represents the items to reconcile segment data to consolidated financial statement totals, including the elimination of intercompany transactions and balances as well as the Group’s exploration interests. This does not represent a separate segment as it does not generate revenue. Included in “Corporate and other” is the adjustment made in respect of the purchase price allocation of South Deep. 4 Other costs “Corporate and other” comprise share of loss of equity accounted investees, net of taxation of US$13.1 million and the balance of US$31.4 million consists mainly of corporate related costs. 5 The Australian operations are entitled to transfer and off-set 6 Capital expenditure for the year ended 31 December 2018. 7 Includes revenue from the sale of copper amounting to US$169.2 million. 8 Refer to note 42 for further details. Segment report Financial summary—US$ million South Ghana Peru Australia South 1 Tarkwa Damang Total Cerro St Agnew/ Granny Total Gruyere Corporate 2 Continuing Darlot Discontinued Group INCOME STATEMENT for the year ended 31 December 2017 Revenue 354.1 710.8 180.3 891.1 392.9 457.3 302.6 363.8 1,123.7 — — 2,761.8 49.0 49.0 2,810.8 Cost of sales (379.0 ) (526.0 ) (144.5 ) (670.5 ) (285.2 ) (330.9 ) (232.7 ) (203.9 ) (767.5 ) (1.3 ) (1.8 ) (2,105.1 ) (50.7 ) (50.7 ) (2,155.8 ) Cost of sales before gold invetory change and amortisation and depreciation (306.3 ) (348.0 ) (121.3 ) (469.3 ) (151.2 ) (187.6 ) (154.9 ) (156.8 ) (499.3 ) (1.3 ) 0.9 (1,426.5 ) (46.3 ) (46.3 ) (1,472.8 ) Gold inventory change 1.5 42.0 (0.9 ) 41.1 (3.1 ) 29.0 4.5 (3.6 ) 29.9 — — 69.5 (0.9 ) (0.9 ) 68.6 Amortisation and depreciation (74.2 ) (220.0 ) (22.3 ) (242.3 ) (130.9 ) (172.3 ) (82.3 ) (43.5 ) (298.1 ) — (2.7 ) (748.1 ) (3.5 ) (3.5 ) (751.6 ) Other income/(costs) 7.6 (3.1 ) (0.6 ) (3.7 ) (12.1 ) 18.0 6.4 4.6 29.0 — (10.3 ) 10.6 (0.2 ) (0.2 ) 10.4 Share-based payments (3.5 ) (4.8 ) (1.3 ) (6.1 ) (3.6 ) (2.2 ) (1.7 ) (2.1 ) (6.0 ) — (7.6 ) (26.8 ) (0.6 ) (0.6 ) (27.4 ) Long-term incentive plan — (0.9 ) (0.3 ) (1.2 ) (0.7 ) (0.7 ) (0.5 ) (0.6 ) (1.8 ) — (1.3 ) (5.0 ) (0.1 ) (0.1 ) (5.1 ) Exploration expense — — — — (0.5 ) (23.0 ) (15.9 ) (10.8 ) (49.6 ) (1.8 ) (57.8 ) (109.8 ) (1.5 ) (1.5 ) (111.3 ) Restructuring costs (2.3 ) (4.7 ) (2.2 ) (6.9 ) — — — — — — — (9.2 ) — — (9.2 ) Silicosis settlement costs — — — — — — — — — — (30.2 ) (30.2 ) — — (30.2 ) Impairment and reversal of impairment of investments and assets, net — (6.8 ) (3.5 ) (10.3 ) 52.6 — — — — — (242.5 ) (200.2 ) — — (200.2 ) Profit/(loss) on disposal of assets 0.3 2.9 (0.2 ) 2.7 — (0.2 ) 1.5 — 1.3 — (0.3 ) 4.0 — — 4.0 Investment income 0.8 3.4 0.2 3.6 — 0.9 0.6 0.7 2.2 — (1.0 ) 5.6 0.4 0.4 6.0 Finance expense (12.4 ) (5.2 ) (5.1 ) (10.3 ) (4.7 ) (2.8 ) (1.0 ) (1.0 ) (4.8 ) — (49.1 ) (81.3 ) — — (81.3 ) Gain on sale of discontinued operations — — — — — — — — — — — — 23.5 23.5 23.5 Royalties (1.8 ) (21.7 ) (5.5 ) (27.1 ) (5.3 ) — 4 — 4 — 4 (27.8 ) — 4 — (62.0 ) (1.1 ) (1.1 ) (63.1 ) Mining and income tax 10.9 (58.6 ) 3.1 (55.5 ) (36.1 ) — 4 — 4 — 4 (89.5 ) — 4 (3.0 ) (173.2 ) (5.6 ) (5.6 ) (179.0 ) Current taxation — (58.0 ) — (58.0 ) (50.8 ) — 4 — 4 — 4 (91.7 ) — 4 (4.2 ) (204.7 ) (2.3 ) (2.3 ) (207.0 ) Deferred taxation 10.9 (0.6 ) 3.1 2.5 14.7 — 4 — 4 — 4 2.2 — 4 1.2 31.5 (3.3 ) (3.3 ) 28.0 (Loss)/profit for the year (25.3 ) 85.4 20.4 105.8 97.4 — 4 — 4 — 4 209.2 — 4 (404.9 ) (20.8 ) 13.1 13.1 (7.7 ) (Loss)/profit attributable to : - Owners of the parent (25.3 ) 76.9 18.4 95.3 96.9 — 4 — 4 — 4 209.2 — 4 (404.9 ) (31.8 ) 13.1 13.1 (18.7 ) - Non-controlling — 8.5 2.0 10.5 0.5 — 4 — 4 — 4 — — 4 — 11.0 — — 11.0 STATEMENT OF FINANCIAL POSITION Total assets (excluding deferred taxation) 1,220.5 1,765.2 184.9 1,950.1 774.0 693.7 500.0 392.0 1,585.7 34.9 1,017.8 6,548.1 — — 6,548.1 Total liabilities (excluding deferred taxation) 1,352.1 232.3 130.0 362.3 188.7 138.2 71.5 78.1 287.8 32.9 572.4 2,763.2 — — 2,763.2 Net deferred taxation (assets)/liabilities (47.6 ) 283.1 (3.1 ) 280.0 80.8 — 4 — 4 — 4 82.8 — 4 (18.3 ) 381.9 — 4 — 4 381.9 Capital expenditure 5 82.4 180.6 132.1 312.8 34.0 156.2 73.7 87.0 316.9 81.1 6.4 833.6 6.8 6.8 840.4 The above is a geograhical analysis presented by location of assets. The Group’s continuing operations are primarily involved in gold mining, exploration and related activities. Activities are conducted and investments held both inside and outside South Africa. The segment results have been prepared and presented based on management’s reporting format. Gold mining operations are managed and internally reported based on the following geographical areas: in South Africa, South Deep mine, in Ghana, Tarkwa and Damang mines, in Australia, St Ives, Agnew/ Lawlers, Granny Smith and Gruyere Gold project and in Peru, the Cerro Corona mine. Whilst the Gruyere Gold project does not meet the quantitative criteria for disclosure as a separate segment, it is expected to become a significant contributor to the Group’s performance in future years as the project is being developed. The Group also has exploration interests which are included in the “Corporate and other” segment. Refer to accounting policies on segment reporting on page xxx. The Group’s discontinued operation is primarily involved in gold mining, exploration and related activities. Activities are conducted and investments held in Australia. US dollar figures may not add as they are rounded independently. 1 The income statement and statement of financial position of South Deep is that of the operating mine and does not include any of the adjustments made in respect of the purchase price allocation relating to the acquisition of South Deep (refer note 14). South Deep Gold mine, being an unincorporated joint venture, is not liable for taxation. Taxation included in South Deep is indicative, as tax is provided in the holding companies at a rate of 30%. 2 “Corporate and other” represents the items to reconcile segment data to consolidated financial statement totals, including the elimination of intercompany transactions and balances as well as the Group’s exploration interests. This does not represent a separate segment as it does not generate revenue. Included in “Corporate and other” is the adjustment made in respect of the purchase price allocation, including goodwill relating to the acquisition of South Deep. 3 Other costs “Corporate and other” comprise share of loss of associates after taxation of US$1.3 million and the balance of US$9.0 million consists mainly of corporate related costs. 4 The Australian operations are entitled to transfer and off-set 5 Capital expenditure for the year ended 31 December 2017. 6 Includes revenue from the sale of copper amounting to US$177.8 million.

Major Group Investments - dir_2

Major Group Investments - direct and indirect (Tables)	12 Months Ended
Major Group Investments - direct and indirect (Tables)	Dec. 31, 2019
Text block [abstract]
Schedule of Major Group Investments - Direct and Indirect	Shares held Group Notes 2019 2018 2019 2018 SUBSIDIARIES Unlisted Abosso Goldfields Ltd 6 - Class “A” shares 1 49,734,000 49,734,000 90.0 % 90.0 % - Class “B” shares 1 4,266,000 4,266,000 90.0 % 90.0 % Agnew Gold Mining Company Pty Ltd 2 54,924,757 54,924,757 100.0 % 100.0 % Beatrix Mines Ltd 3 96,549,020 96,549,020 100.0 % 100.0 % Beatrix Mining Ventures Ltd 3 9,625,001 9,625,001 100.0 % 100.0 % Darlot Mining Company Pty Ltd 2 1 1 100.0 % 100.0 % Driefontein Consolidated (Pty) Ltd 3 1,000 1,000 100.0 % 100.0 % GFI Joint Venture Holdings (Pty) Ltd 3 311,668,564 311,668,564 100.0 % 100.0 % GFL Mining Services Ltd 3 235,676,387 235,676,387 100.0 % 100.0 % Gold Fields Ghana Ltd 7 1 900 900 90.0 % 90.0 % Gold Fields Group Services (Pty) Ltd 3 1 1 100.0 % 100.0 % Gold Fields Holdings Company (BVI) Ltd 5 4,084 4,084 100.0 % 100.0 % Gold Fields La Cima S.A. 8 4 1,426,050,205 1,426,050,205 99.5 % 99.5 % Gold Fields Operations Ltd 3 156,279,947 156,279,947 100.0 % 100.0 % Gold Fields Orogen Holding (BVI) Ltd 5 356 356 100.0 % 100.0 % Gruyere Mining Company Pty Ltd 2 1 1 100.0 % 100.0 % GSM Mining Company Pty Ltd 2 1 1 100.0 % 100.0 % Kloof Gold Mining Company Ltd 3 138,600,000 138,600,000 100.0 % 100.0 % Newshelf 899 (Pty) Ltd 9 3 90,000,000 90,000,000 100.0 % 100.0 % St Ives Gold Mining Company Pty Ltd 2 281,051,329 281,051,329 100.0 % 100.0 % Total 1 Incorporated in Ghana. 2 Incorporated in Australia. 3 Incorporated in the Republic of South Africa. 4 Incorporated in Peru. 5 Incorporated in the British Virgin Islands. 6 Abosso Goldfields Ltd (“Abosso”) owns the Damang operation in Ghana. The accumulated non-controlling non-controlling 7 Gold Fields Ghana Ltd (“GFG”) owns the Tarkwa operation in Ghana. The accumulated non-controlling non-controlling 8 Gold Fields La Cima S.A. (“La Cima”) owns the Cerro Corona operation in Peru. The accumulated non-controlling non-controlling 9 Newshelf is the holding company of GFIJVH and GFO which own the South Deep mine. In terms of the South Deep BEE agreement, there is an agreed phase-in
Summary of Share Held in Investments in Associates Joint Ventures other Equity Investments and Percentage of Beneficial Interest	Shares held Group beneficial interest 2019 2018 2019 % 2018 OTHER 1 Listed associates Maverix Metals Incorporated (“Maverix”) 2 — 42,850,000 — 19.9 % Rusoro Mining Limited 140,000,001 140,000,001 25.7 % 25.7 % Joint venture Far Southeast Gold Resources Incorporated 1,737,699 1,737,699 40.0 % 40.0 % Asanko Gold Ghana Limited 450,000,000 450,000,000 45.0 % 45.0 % Adansi Gold Company Limited 100,000 100,000 50.0 % 50.0 % Shika Group Finance Limited 10,000 10,000 50.0 % 50.0 % Listed equity investments Asanko Gold Inc. 22 354 657 22 354 657 9.9 % 9.9 % Bezant Resources PLC 17,945,922 17,945,922 1.8 % 1.8 % Cardinal Resources Limited 3 81,038,233 42,818,182 16.4 % 11.3 % Cardinal Resources Limited (Options) 4 — 38,220,051 — 25.8 % RareX Limited 710,592 17,764,783 0.2 % 0.5 % Consolidated Woodjam Copper Corporation 3 16,115,740 16,115,740 19.9 % 19.9 % Gold Road Resources Limited 5 — 87,117,909 — 9.9 % Hummingbird Resources PLC 5 — 21,258,503 — 6.0 % Lefroy Exploration Limited 3 18,214,535 14,764,535 18.4 % 18.2 % Magmatic Resources Limited 19,200,000 17,600,000 12.5 % 15.0 % Orsu Metals Corp 2,613,491 2,613,491 6.2 % 7.2 % Red 5 Limited 5 — 246,875,821 — 19.9 % Chakana Copper Corp 3 15,686,275 — 16.8 % — 1 Only major investments are listed individually. 2 Maverix was disposed of during 2019, refer note 16.1 c 3 An assessment has been performed and the Group does not have significant influence. 4 The Cardinal Resources Limited options were converted to shares in 2019. 5 Disposed of during 2019.

Accounting Policies - Summary o

Accounting Policies - Summary of New and Revised Accounting Standards, Amendments to Standards and New Interpretations are Adopted by the Group (Detail)	12 Months Ended
	Dec. 31, 2019
IFRS 16 Leases [member]
Disclosure of initial application of standards or interpretations [line items]
Standard(s) Amendment(s) Interpretation(s)	IFRS 16 Leases
Nature of the Change	New standard
Impact on financial position or performance	Refer to Note 41 of the consolidated financial statements
Salient features of the changes	This IFRS sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract, i.e. the customer ('lessee') and the supplier ('lessor'); IFRS 16 replaces the previous leases Standard, IAS 17 Leases, and related Interpretations; IFRS 16 has one model for lessees which will result in almost all leases being included on the statement of financial position. The lessee recognises a right-of-use asset representing its right to use the underlying asset and a lease liability representing its obligation to make lease payments. No significant changes have been included for lessors (the Group is not a lessor): and The Group adopted IFRS 16 on 1 January 2019.
IFRIC 23 Uncertainty over Income Tax Treatments [member]
Disclosure of initial application of standards or interpretations [line items]
Standard(s) Amendment(s) Interpretation(s)	IFRIC 23 Uncertainty over Income Tax Treatments
Nature of the change	New interpretation
Impact on financial position or performance	No impact
Salient features of the changes	This interpretation clarifies the accounting for income tax treatments that have yet to be accepted by tax authorities; IFRIC 23 specifically clarifies how to incorporate this uncertainty into the measurement of tax as reported in the financial statements; IFRIC 23 does not introduce any new disclosures but reinforces the need to comply with existing disclosure requirements about judgements made, assumptions and other estimates used and the potential impact of uncertainties that are not reflected; and The Group adopted IFRIC 23 on 1 January 2019.
Various IFRS (2015/2017Cycle) [member]
Disclosure of initial application of standards or interpretations [line items]
Standard(s) Amendment(s) Interpretation(s)	Various IFRS (2015/2017 Cycle)
Impact on financial position or performance	No impact
Salient features of the changes	The annual improvements project is a collection of amendments to various IFRS standards and is the result of conclusions reached by the International Accounting Standards Board ("IASB") on proposals made at its annual improvement project; and . The Group adopted the interpretation on 1 January 2019.
IFRS Three Business combinations [Member]
Disclosure of initial application of standards or interpretations [line items]
Standard(s) Amendment(s) Interpretation(s)	IFRS 3 Business Combinations
Nature of the change	Amendments
Salient features of the changes	These amendments make it easier for companies to decide whether activities and assets they acquire are a business or merely a group of assets. The amendments: Confirm that a business must include inputs and a process, and clarified that: (i) the process must be substantive and (ii) the inputs and process must together significantly contribute to creating outputs; Narrow the definitions of a business by focusing the definition of outputs on goods and services provided to customers and other income from ordinary activities, rather than on providing dividends or other economic benefits directly to investors or lowering costs; and Add a test that makes it easier to conclude that a company has acquired a group of assets, rather than a business, if the value of the assets acquired is substantially all concentrated in a single asset or group of similar assets. The amendments will not have a material impact on the Group.
Effective Date	Jan. 1, 2020
Ias One Presentation of Financial Statements And Ias Eight Accounting Policies Changes in Accounting Estimates and Errors [Member]
Disclosure of initial application of standards or interpretations [line items]
Standard(s) Amendment(s) Interpretation(s)	IAS 1 Presentation of Financial Statements and IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors
Nature of the change	Amendments
Salient features of the changes	• The IASB refined its definition of material to make it easier to understand. It is now aligned across IFRS Standards and the Conceptual Framework; • The revised definition of material is: • Information is material if omitting, misstating or obscuring it could reasonably be expected to influence decisions that the primary users of general purpose financial statements make on the basis of those financial statements, which provide financial information about a specific reporting entity. • The Board has also removed the definition of material omissions or misstatements from IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors; and • The amendments will not have a material impact on the Group.
Effective Date	Jan. 1, 2020
Ifrs Seventeen Insurance Contracts [Member]
Disclosure of initial application of standards or interpretations [line items]
Standard(s) Amendment(s) Interpretation(s)	IFRS17 Insurance Contracts
Nature of the change	New Standard
Salient features of the changes	• IFRS 17 supersedes IFRS 4 Insurance Contracts and aims to increase comparability and transparency about profitability. The new standard introduces a new comprehensive model ("general model") for the recognition and measurement of liabilities arising from insurance contracts; • In addition, it includes a simplified approach and modifications to the general measurement model that can be applied in certain circumstances and to specific contracts, such as: • Reinsurance contracts held; • Direct participating contracts; and • Investment contracts with discretionary participation features. • Under the new standard, investment components are excluded from insurance revenue and service expenses. Entities can also choose to present the effect of changes in discount rates and other financial risks in profit or loss or OCI; • The new standard includes various new disclosures and requires additional granularity in disclosures to assist users to assess the effects of insurance contracts on the entity's financial statements; and • The Group is in the process of determining the impact of IFRS 17 and will provide more detailed disclosure on the impact in future financial statements.
Effective Date	Jan. 1, 2021

Accounting Policies - Summary_2

Accounting Policies - Summary of Significant Assumptions Used in the Group's Impairment Assessments (FVLCOD calculations) (Detail)	12 Months Ended
	Dec. 31, 2019$ / ozZAR-kg$ / per_oz$ / per_ozExchange_RatesT	Dec. 31, 2018ZAR-kg$ / per_oz$ / per_ozExchange_RatesT
South deep [member]
Disclosure of changes in accounting estimates [line items]
Life of mine	75 years	75 years
Tarkwa [member]
Disclosure of changes in accounting estimates [line items]
Life of mine	14 years	14 years
Damang [member]
Disclosure of changes in accounting estimates [line items]
Life of mine	6 years	7 years
Cerro Cerona [member]
Disclosure of changes in accounting estimates [line items]
Life of mine	13 years	12 years
St Ives [member]
Disclosure of changes in accounting estimates [line items]
Life of mine	9 years	7 years
Agnew [member]
Disclosure of changes in accounting estimates [line items]
Life of mine	4 years	4 years
Granny Smith [member]
Disclosure of changes in accounting estimates [line items]
Life of mine	13 years	12 years
Gruyere [member]
Disclosure of changes in accounting estimates [line items]
Life of mine	11 years	12 years
Rand [member]
Disclosure of changes in accounting estimates [line items]
Resource value per ounce	16	17
Nominal discount rate	14.10%	13.50%
Inflation rate	5.30%	5.50%
Australia, Dollars [member]
Disclosure of changes in accounting estimates [line items]
Resource value per ounce	77	28
Real discount rates	3.50%	3.40%
Ghanaian cedi [Member]
Disclosure of changes in accounting estimates [line items]
Resource value per ounce	70	44
Real discount rates	8.50%	9.50%
Peru, Nuevos Soles [Member]
Disclosure of changes in accounting estimates [line items]
Resource value per ounce	34	70
Real discount rates	5.00%	4.90%
Year 1 [Member] \| US Dollars [member]
Disclosure of changes in accounting estimates [line items]
Gold price	1,500	1,200
Copper price per tonne \| T	5,730	5,951
Year 1 [Member] \| Rand [member]
Disclosure of changes in accounting estimates [line items]
Gold price \| ZAR-kg	700,000	525,000
Long-term exchange rates	14.50	13.61
Year 1 [Member] \| Australia, Dollars [member]
Disclosure of changes in accounting estimates [line items]
Gold price	2,150	1,600
Long-term exchange rates	0.70	0.75
Year 2 [Member] \| Rand [member]
Disclosure of changes in accounting estimates [line items]
Long-term exchange rates	14.50	13.16
Year 2 and 3 [Member] \| US Dollars [member]
Disclosure of changes in accounting estimates [line items]
Gold price	1,400	1,300
Copper price per tonne \| T	6,612	6,612
Year 2 and 3 [Member] \| Rand [member]
Disclosure of changes in accounting estimates [line items]
Gold price \| ZAR-kg	650,000	550,000
Year 2 and 3 [Member] \| Australia, Dollars [member]
Disclosure of changes in accounting estimates [line items]
Gold price	1,970	1,700
Long-term exchange rates \| Exchange_Rates	0.71	0.76
Year 4 [Member] \| US Dollars [member]
Disclosure of changes in accounting estimates [line items]
Gold price	1,350	1,300
Copper price per tonne \| T	6,612	6,612
Year 4 [Member] \| Rand [member]
Disclosure of changes in accounting estimates [line items]
Gold price \| ZAR-kg	630,000	550,000
Year 4 [Member] \| Australia, Dollars [member]
Disclosure of changes in accounting estimates [line items]
Gold price	1,850	1,700
Long-term exchange rates	0.73	0.76

Accounting Policies - Additiona

Accounting Policies - Additional Information (Detail) R in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)R / $$ / $		Dec. 31, 2019ZAR (R)R / $$ / $	Dec. 31, 2018USD ($)R / $$ / $		Dec. 31, 2018ZAR (R)R / $$ / $	Dec. 31, 2017USD ($)R / $$ / $		Dec. 31, 2017ZAR (R)R / $$ / $	Dec. 31, 2019ZAR (R)R / $$ / $	Dec. 31, 2018ZAR (R)R / $$ / $	Jan. 01, 2018USD ($)	Dec. 31, 2016USD ($)	[1]
Disclosure of changes in accounting estimates [line items]
Carrying amount of property, plant and equipment	$ 4,657.1			$ 4,259.2	[1]							$ 4,892.9
Goodwill carrying value	0			0	[1]		$ 76.6					76.6
Impairment loss on goodwill	0			71.7			277.8
Gold-in-process and stockpiles	375.1			325
Provision for environmental rehabilitation costs	370.3			289.6			281.5
Charge to income statement	9.1			1.1			5
Non-current portion of long-term incentive plan	11.5			2.1
Silicosis settlement costs	21.2			25.1
Silicosis settlement costs current	4.6			0	[1]							0
Silicosis settlement costs noncurrent	16.6			25.1
Deferred taxation liability	433.6			454.9	[1]							453.9
Deferred taxation asset	265.5			269.5	[1]							72
Taxation payable	24.8	[1]		0.9	[1]		46.7	[1]				46.7	$ 87
Share-based payments	20.5			37.5			26.8
Derivative financial assets	11.7			9.3
Asanko redeemable preference shares	$ 95.5			132.9
Dividends withholding tax percentage	20.00%		20.00%
Equity accounted investees	$ 172			225.1	[1]							$ 171.3
Asanko Gold [member]
Disclosure of changes in accounting estimates [line items]
Life of mine	10 years		10 years
South Deep Mine [member]
Disclosure of changes in accounting estimates [line items]
Goodwill carrying value	$ 1,500			1,400						R 21,100	R 21,200
Impairment loss	0		R 0	481.5		R 6,470.9	277.8		R 3,495,000
South Deep Mine [member] \| Goodwill [member]
Disclosure of changes in accounting estimates [line items]
Impairment loss on goodwill	0	[2]	0	71.7		963.9	277.8	[2]	3,495,000
South Deep Mine [member] \| Other impaired assets [member]
Disclosure of changes in accounting estimates [line items]
Impairment loss	$ 0		R 0	$ 409.8	[2]	R 5,507	$ 0		R 0
Rand [member]
Disclosure of changes in accounting estimates [line items]
Closing exchange rate \| R / $	14			14.63			12.58			14	14.63
Average exchange rate \| R / $	14.46		14.46	13.20		13.20	13.33		13.33
US Dollars [member]
Disclosure of changes in accounting estimates [line items]
Closing exchange rate \| $ / $	0.70			0.70			0.77			0.70	0.70
Average exchange rate \| $ / $	0.70		0.70	0.75		0.75	0.77		0.77
Trade And Other Payable [Member]
Disclosure of changes in accounting estimates [line items]
Derivative financial liabilities	$ 127.6			$ 22.6
Trade And Other Receivable [member]
Disclosure of changes in accounting estimates [line items]
Derivative financial assets	$ 1.1			$ 8.3

[1]	Refer note 42.
[2]	For the year ended 31 December 2019, the Group recognised an impairment of Rnil (US$nil) (2018: R6,470.9 million (US$481.5 million) and 2017: R3,495.0 billion (US$277.8 million)) in respect of the South Deep cash-generating unit due to the deferral of production. Rnil (US$nil) (2018: R963.9 million (US$71.7 million) and 2017: R3,495.0 billion (US$277.8 million)) of the total impairment was firstly allocated against goodwill and the remainder of Rnil (US$nil) (2018: R5,507.0 million (US$409.8 million) and 2017: Rnil (US$nil)) against other assets. The recoverable amount was based on its FVLCOD calculated using a combination of the market and the income approach (level 3 of the fair value hierarchy).

Revenue - Summary of Revenue fr

Revenue - Summary of Revenue from Contracts with Customers (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers		$ 2,967.1	$ 2,577.8	$ 2,761.8
Gold [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers	[1]	2,802	2,408.6	2,584
Copper [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers	[2]	$ 165.1	$ 169.2	$ 177.8

[1]	All regions.
[2]	Only Peru region (Cerro Corona).

Cost of Sale - Summary of Cost

Cost of Sale - Summary of Cost of Sale (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of cost of sales [abstract]
Salaries and wages	$ (334.8)	$ (392.8)	$ (414.7)
Consumable stores	(270.4)	(280)	(346.7)
Utilities	(131.5)	(148.3)	(150.1)
Mine contractors	(511)	(365.3)	(307.4)
Other	(218.8)	(204.4)	(207.6)
Cost of sales before gold inventory change and amortisation and depreciation	(1,466.5)	(1,390.8)	(1,426.5)
Gold inventory change	43	16.2	69.5
Cost of sales before amortisation and depreciation	(1,423.5)	(1,374.6)	(1,357)
Amortisation and depreciation	(610)	(668.4)	(748.1)
Total cost of sales	$ (2,033.5)	$ (2,043)	$ (2,105.1)

Investment Income - Schedule of

Investment Income - Schedule of Investment Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Disclosure of Investment Income [abstract]
Dividends received	$ 0	$ 0.4		$ 0
Interest received - environmental trust funds	0.7	0.6	[1]	0.5	[1]
Interest received - cash balances	6.6	6.8		5.1
Total investment income	$ 7.3	$ 7.8		$ 5.6

[1]	Refer note 42.

Finance Expense - Summary of Fi

Finance Expense - Summary of Finance Expense (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of finance expense [abstract]
Interest expense - environmental rehabilitation		$ (11.7)	$ (11.7)	$ (12.1)
Unwinding of discount rate on silicosis settlement costs		(1.3)	(2)	(0.9)
Interest expense - lease liabilities (2018: finance lease liabilities)		(18.6)	(0.2)	0
Interest expense - borrowings		(114)	(91.6)	(91.2)
Borrowing costs capitalised	[1]	43.4	17.5	22.9
Total finance expense		$ (102.2)	$ (88)	$ (81.3)

[1]	Borrowing costs capitalised of US$43.4 million comprise borrowing costs relating to general borrowings of US$31.0 million and specific borrowings of US$12.4 million. The specific borrowings of US$12.4 million relate to the Gruyere project and are included in additions to property, plant and equipment of US$612.5 million (refer note 13).

Finance Expense - Additional In

Finance Expense - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement [LineItems]
Borrowing costs	[1]	$ 43.4	$ 17.5	$ 22.9
Additions to property plant and equipment		612.5
General Borrowings [Member]
Statement [LineItems]
Borrowing costs incurred		31
Specific Borrowings [Member]
Statement [LineItems]
Borrowing costs incurred		12.4
Gruyere [member]
Statement [LineItems]
Specific borrowings relates to related parties		$ 12.4

[1]	Borrowing costs capitalised of US$43.4 million comprise borrowing costs relating to general borrowings of US$31.0 million and specific borrowings of US$12.4 million. The specific borrowings of US$12.4 million relate to the Gruyere project and are included in additions to property, plant and equipment of US$612.5 million (refer note 13).

Share-based Payments - Summary

Share-based Payments - Summary of Share-based Payment Arrangements Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Share-based payment expense recognised in profit or loss [Line items]
Total included in profit or loss for the year	$ 20.5	$ 37.5	$ 26.8
Discontinued operations [member]
Disclosure of Share-based payment expense recognised in profit or loss [Line items]
Total included in profit or loss for the year			0.6
Continuing operations [member]
Disclosure of Share-based payment expense recognised in profit or loss [Line items]
Total included in profit or loss for the year	20.5	37.5	26.8
Gold Fields Limited 2005 Share Plan [Member] \| Discontinued operations [member]
Disclosure of Share-based payment expense recognised in profit or loss [Line items]
Total included in profit or loss for the year			0
Gold Fields Limited 2005 Share Plan [Member] \| Continuing operations [member]
Disclosure of Share-based payment expense recognised in profit or loss [Line items]
Total included in profit or loss for the year	0	0	0
Gold Fields Limited 2012 Share Plan [member] \| Discontinued operations [member]
Disclosure of Share-based payment expense recognised in profit or loss [Line items]
Performance Shares			0
Bonus Shares			0
Gold Fields Limited 2012 Share Plan [member] \| Continuing operations [member]
Disclosure of Share-based payment expense recognised in profit or loss [Line items]
Performance Shares	0	0	0
Bonus Shares	0	0	0
Gold Fields Limited 2012 Share Plan Amended [member] \| Discontinued operations [member]
Disclosure of Share-based payment expense recognised in profit or loss [Line items]
Performance Shares			0.6
Retention Shares			0
Restricted/Matching Shares			0
Gold Fields Limited 2012 Share Plan Amended [member] \| Continuing operations [member]
Disclosure of Share-based payment expense recognised in profit or loss [Line items]
Performance Shares	18.8	34.7	24.5
Retention Shares	1.4	2.5	2.1
Restricted/Matching Shares	$ 0.3	$ 0.3	$ 0.2

Share-based Payments - Summar_2

Share-based Payments - Summary of Share Options Under the Gold Fields Limited 2005 Share Plan (Detail) - Gold Fields Limited 2005 Share Plan [Member]	12 Months Ended
	Dec. 31, 2018shares$ / shares	Dec. 31, 2017shares$ / shares
Average Instrument Price [member]
Movement during the year:
Outstanding at beginning of the year \| $ / shares	$ 9.42	$ 7.39
Forfeited \| $ / shares	9.42	7.75
Outstanding at end of the year (vested) \| $ / shares	$ 0	$ 9.42
Share Appreciation Rights [member]
Disclosure of movements in share options [line items]
Outstanding at beginning of the year \| shares	11,521	530,611
Movement during the year:
Forfeited \| shares	(11,521)	(519,090)
Outstanding at end of the year \| shares	0	11,521

Share-Based Payments - Addition

Share-Based Payments - Additional Information (Detail)	12 Months Ended
Share-Based Payments - Additional Information (Detail)	Dec. 31, 2019shares$ / shares	Dec. 31, 2018shares	Dec. 31, 2017shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Cost of performance shares granted \| $ / shares	$ 0
Holding period of restricted shares	Five years
Maximum number of matching shares	441,604	407,223	403,027
Maximum number of matching shares vesting period	Five years
Gold Fields Limited 2012 Share Plan [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of share options	14,833,390

Share-Based Payments - Summar_3

Share-Based Payments - Summary Movement of Share Options Under the Gold Fields Limited 2012 Share Plan (Detail)	12 Months Ended
	Dec. 31, 2019shares	Dec. 31, 2018shares	Dec. 31, 2017shares
Gold Fields Limited 2012 Share Plan [member]
Disclosure of movements in share options [line items]
Outstanding at end of the year	14,833,390
Performance Shares [Member] \| Gold Fields Limited 2012 Share Plan Amended [member]
Disclosure of movements in share options [line items]
Outstanding at beginning of the year		0	393,178
Forfeited			(393,178)
Outstanding at end of the year			0
Performance Shares [Member] \| Gold Fields Limited 2012 Share Plan [member]
Disclosure of movements in share options [line items]
Outstanding at beginning of the year	18,361,977	18,279,130	8,138,472
Granted	4,558,177	811,829	11,744,152
Exercised and released	(6,611,023)	0	(34,827)
Forfeited	(1,475,741)	(728,982)	(1,568,667)
Outstanding at end of the year	14,833,390	18,361,977	18,279,130

Share-Based Payments - Summar_4

Share-Based Payments - Summary of Share Based Payment Performance Condition (Detail) - $ / oz	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Vesting Target Threshold Top of Range [Member] \| Free Cash Flow Margin [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Threshold performance period, in years	0 years
Target performance period in years	0 years
Stretch performance period in years	0 years
Gold Fields Limited 2012 Share Plan Amended [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Gold price per ounce, Threshold	1,200	1,300	1,300
Gold price per ounce, Target	1,200	1,300	1,300
Gold price per ounce, Stretch and Cap	1,200	1,300	1,300
Gold Fields Limited 2012 Share Plan Amended [member] \| Relative TSR [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Weighting	33.00%
Threshold	Median of the peer group
Target	Linear vesting to apply between median and upper quartile performance and capped at upper quartile performance
Gold Fields Limited 2012 Share Plan Amended [member] \| Absolute Total Shareholder Return ("TSR") [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stretch and cap: Compounded cost of equity in real terms over 3 year performance period	6.00%
Weighting	33.00%
Threshold	N/A - No vesting below target
Target	Compounded cost of equity in real terms over three-year performance period
Stretch and cap	Compounded cost of equity in real terms over three-year performance period +6% per annum
Gold Fields Limited 2012 Share Plan Amended [member] \| Free Cash Flow Margin [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Free cash flow margin ("FCFM"), Threshold	5.00%
Free cash flow margin ("FCFM"), Target	15.00%
Free cash flow margin ("FCFM"), Stretch and Cap	20.00%
Weighting	34.00%
Threshold	Average FCFM over performance period of 5% at a gold price of S1,200/oz for the 2019 allocation (2017 and 2018 allocations: $1,300/oz) - margin to be adjusted relative to the actual gold price for the three-year period
Target	Average FCFM over performance period of 15% at a gold price of $1,200/oz for the 2019 allocation (2017 and 2018 allocations: $1,300/oz) - margin to be adjusted relative to the actual gold price for the three-year period
Stretch and cap	Average FCFM over performance period of 20% at a gold price of $1,200/oz for the 2019 allocation (2017 and 2018 allocations: $1,300/oz) - margin to be adjusted relative to the actual gold price for the three-year period
Gold Fields Limited 2012 Share Plan Amended [member] \| Vesting Target Threshold Top of Range [Member] \| Absolute Total Shareholder Return ("TSR") [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Target performance period in years	3 years
Stretch performance period in years	3 years

Share-Based Payments - Summar_5

Share-Based Payments - Summary of Vesting Profile (Detail)	12 Months Ended
Share-Based Payments - Summary of Vesting Profile (Detail)	Dec. 31, 2019
Absolute Total Shareholder Return ("TSR") [member]
Disclosure of vesting profile [line items]
Threshold	0.00%
Target	100.00%
Stretch and cap	200.00%
Relative TSR [member]
Disclosure of vesting profile [line items]
Threshold	0.00%
Target	100.00%
Stretch and cap	200.00%
Free Cash Flow Margin [member]
Disclosure of vesting profile [line items]
Threshold	0.00%
Target	100.00%
Stretch and cap	200.00%

Share-Based Payments - Summar_6

Share-Based Payments - Summary of Share Based Payment Performance Condition (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2019
Absolute Total Shareholder Return ("TSR") [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Compounded annual growth rate index trading days	60 trading days
Relative TSR [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Compounded annual growth rate index trading days	60 trading days

Share-Based Payments - Summar_7

Share-Based Payments - Summary Movement of Share Options Under the Gold Fields Limited 2012 Share Plan (Parenthetical) (Detail)	Dec. 31, 2019shares
Disclosure of movements in share options [abstract]
Options vested	0

Share-Based Payments - Summar_8

Share-Based Payments - Summary of Fair Value of Equity Instruments Granted (Detail) (Detail) - Performance Shares [Member] - Gold Fields Limited 2012 Share Plan Amended [member]	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Monte Carlo simulation
weighted average historical volatility (based on a statistical analysis of the share price on a weighted moving average basis for the expected term of the option)	44.70%	58.60%	64.30%
expected term (years)	3 years	3 years	3 years
dividend yield	n/a	n/a	n/a
weighted average three-year risk-free interest rate (based on US interest rates)	1.40%	2.00%	1.60%
weighted average fair value (United States Dollar)	5.7	5	4.2

Share-Based Payments - Summar_9

Share-Based Payments - Summary of Information Relating to the Options and Equity - Settled Instruments (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of fair value of equity instruments granted [line items]
Weighted average share price during the year on the Johannesburg Stock Exchange (US$)	$ 4.82	$ 3.46	$ 3.76

Share-Based Payments - Summa_10

Share-Based Payments - Summary of Options - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of terms and conditions of share-based payment arrangement [line items]
Compensation costs related to awards not yet recognised	$ 17.5	$ 20.8	$ 53
Share based compensation recognition period	4 years
Ordinary Shares [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Unexercised options and shares, percent	1.80%
Number of instruments Utilised in share-based payment arrangement	7,093,795
Top of range [member] \| Ordinary Shares [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maximum number of ordinary shares that can be issued	41,076,635
Maximum number of shares that can be issued to an individual	4,107,664

Impairment, Net of Reversal o_3

Impairment, Net of Reversal of Impairment of Investments and Assets - Summary of Impairment, Net of Reversal of Impairment of Investments and Assets (Detail) R in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2019USD ($)		Dec. 31, 2019ZAR (R)	Dec. 31, 2018USD ($)		Dec. 31, 2018ZAR (R)	Dec. 31, 2017USD ($)		Dec. 31, 2017ZAR (R)	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)
Disclosures of impairment of investments and assets [line items]
Investments		$ (9.6)			$ (36.9)			$ (3.7)			$ (3.2)	$ (89.7)
Property, plant and equipment		(0.2)			(411.7)			81.3
Goodwill		0			(71.7)			(277.8)
Impairment, net of reversal of impairment of investments and assets		(9.8)			(520.3)			(200.2)
Other [member]
Disclosures of impairment of investments and assets [line items]
(Impairment)/reversal of impairment of property, plant and equipment - other	[1]	(0.2)			(1.9)			42.3
Arctic Platinum Project [Member]
Disclosures of impairment of investments and assets [line items]
(Impairment)/reversal of impairment of property, plant and equipment - other	[2]	0			0			39
South Deep cash-generating unit											$ (40)
South Deep Mine [member]
Disclosures of impairment of investments and assets [line items]
South Deep cash-generating unit		0		R 0	(481.5)		R (6,470.9)	(277.8)		R (3,495,000)
South Deep Mine [member] \| Other impaired assets [member]
Disclosures of impairment of investments and assets [line items]
South Deep cash-generating unit		0		0	(409.8)	[3]	(5,507)	0		0
South Deep Mine [member] \| Goodwill [member]
Disclosures of impairment of investments and assets [line items]
Goodwill		0	[3]	R 0	(71.7)		R (963.9)	(277.8)	[3]	R (3,495,000)
Far Southeast Gold Resources Incorporated [member]
Disclosures of impairment of investments and assets [line items]
Investments	[4]	(9.6)			(36.9)			0
Investments - listed [member]
Disclosures of impairment of investments and assets [line items]
Investments		0			0			(0.5)
Investments - unlisted [member]
Disclosures of impairment of investments and assets [line items]
Investments		$ 0			$ 0			$ (3.2)

[1]	(Impairment)/reversal of impairment of property, plant and equipment - other is made up as follows:
[2]	Following the Group’s decision during 2013 to dispose of non-core projects, APP was classified as held for sale and, accordingly, valued at the lower of fair value less cost of disposal or carrying value which resulted in impairments of US$89.7 million and US$3.2 million during 2013 and 2014, respectively. APP’s carrying value at 31 December 2014 after the above impairments was US$40.0 million which was based on an offer received close to the 2014 year-end. During 2015, active marketing activities for the disposal of the project continued after the 2014 offer was not realised. During 2015, APP was further impaired by US$39.0 million, resulting in a carrying value of US$1.0 million at 31 December 2015. At 31 December 2016, APP no longer met the definition of an asset held for sale and was reclassified to property, plant and equipment at a recoverable amount of US$1.0 million. During 2017, active marketing activities continued and as a result, a sale agreement was concluded. As a result, the impairment previously recorded, was reversed at up to the value of the selling price and APP was reclassified as an asset held for sale at 31 December 2017. On 24 January 2018, Gold Fields concluded the sale of APP to a Finnish subsidiary of private equity fund CD Capital Natural Resources Fund III. The reversal of impairment was included in the “Corporate and other” segment.
[3]	For the year ended 31 December 2019, the Group recognised an impairment of Rnil (US$nil) (2018: R6,470.9 million (US$481.5 million) and 2017: R3,495.0 billion (US$277.8 million)) in respect of the South Deep cash-generating unit due to the deferral of production. Rnil (US$nil) (2018: R963.9 million (US$71.7 million) and 2017: R3,495.0 billion (US$277.8 million)) of the total impairment was firstly allocated against goodwill and the remainder of Rnil (US$nil) (2018: R5,507.0 million (US$409.8 million) and 2017: Rnil (US$nil)) against other assets. The recoverable amount was based on its FVLCOD calculated using a combination of the market and the income approach (level 3 of the fair value hierarchy).
[4]	Following the identification of impairment indicators during 2018 and 2019, FSE was valued at its recoverable amount which resulted in a net impairment of US$36.9 million and US$9.6 million, respectively. The recoverable amount was based on the fair value less cost of disposal (“FVLCOD”) of the investment (level 2 in the fair value hierarchy). The FVLCOD was indirectly derived from the market value of Lepanto Consolidated Mining Company, being the 60% shareholder of FSE. The net impairment is included in the “Corporate and other” segment.

Impairment, Net of Reversal o_4

Impairment, Net of Reversal of Impairment of Investments and Assets - Summary of Impairment, Net of Reversal of Impairment of Investments and Assets (Parenthetical) (Detail) R in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2019USD ($)		Dec. 31, 2019ZAR (R)	Dec. 31, 2018USD ($)		Dec. 31, 2018ZAR (R)	Dec. 31, 2017USD ($)		Dec. 31, 2017ZAR (R)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)
Disclosures of impairment of investments and assets [line items]
Investments		$ 9.6			$ 36.9			$ 3.7					$ 3.2	$ 89.7
Impairment amounts disclosed relate to a specific impairment for South Deep Goodwill		0			71.7			277.8
Far Southeast Gold Resources Incorporated [member]
Disclosures of impairment of investments and assets [line items]
Investments	[1]	$ 9.6			36.9			0
Equity method investment ownership percentage		60.00%		60.00%
South Deep Mine [member]
Disclosures of impairment of investments and assets [line items]
Impairment loss		$ 0		R 0	481.5		R 6,470.9	277.8		R 3,495,000
Other impaired assets [member] \| South Deep Mine [member]
Disclosures of impairment of investments and assets [line items]
Impairment loss		0		0	409.8	[2]	5,507	0		0
Goodwill [member] \| South Deep Mine [member]
Disclosures of impairment of investments and assets [line items]
Impairment amounts disclosed relate to a specific impairment for South Deep Goodwill		0	[2]	R 0	71.7		R 963.9	277.8	[2]	R 3,495,000
CUG at Cerro Corona [member]
Disclosures of impairment of investments and assets [line items]
(Impairment)/reversal of impairment of property, plant and equipment - other											$ (66.4)
CUG at Cerro Corona [member] \| Redundant Assets at Cerro Corona [Member]
Disclosures of impairment of investments and assets [line items]
- Redundant assets at Cerro Corona		(0.2)			(1.9)			(0.8)
CUG at Cerro Corona [member] \| Assets Specific Impairment At Tarkwa [member]
Disclosures of impairment of investments and assets [line items]
Impairment loss recognised		0			0			(6.8)
CUG at Cerro Corona [member] \| Assets Specific Impairment At Damang [member]
Disclosures of impairment of investments and assets [line items]
Impairment loss recognised		0			0			(3.5)
CUG at Cerro Corona [member] \| CGU at Cerro Corona [Member]
Disclosures of impairment of investments and assets [line items]
(Impairment)/reversal of impairment of property, plant and equipment - other		0			0			53.4
Property, plant and equipment [member]
Disclosures of impairment of investments and assets [line items]
Assets held for sale of reclassified recoverable amount											$ 1
Other [member]
Disclosures of impairment of investments and assets [line items]
(Impairment)/reversal of impairment of property, plant and equipment - other		$ (0.2)			$ (1.9)			$ 42.3
Arctic platinum [member]
Disclosures of impairment of investments and assets [line items]
Impairment loss													40
Carrying value of impairment												$ 39	$ 1

[1]	Following the identification of impairment indicators during 2018 and 2019, FSE was valued at its recoverable amount which resulted in a net impairment of US$36.9 million and US$9.6 million, respectively. The recoverable amount was based on the fair value less cost of disposal (“FVLCOD”) of the investment (level 2 in the fair value hierarchy). The FVLCOD was indirectly derived from the market value of Lepanto Consolidated Mining Company, being the 60% shareholder of FSE. The net impairment is included in the “Corporate and other” segment.
[2]	For the year ended 31 December 2019, the Group recognised an impairment of Rnil (US$nil) (2018: R6,470.9 million (US$481.5 million) and 2017: R3,495.0 billion (US$277.8 million)) in respect of the South Deep cash-generating unit due to the deferral of production. Rnil (US$nil) (2018: R963.9 million (US$71.7 million) and 2017: R3,495.0 billion (US$277.8 million)) of the total impairment was firstly allocated against goodwill and the remainder of Rnil (US$nil) (2018: R5,507.0 million (US$409.8 million) and 2017: Rnil (US$nil)) against other assets. The recoverable amount was based on its FVLCOD calculated using a combination of the market and the income approach (level 3 of the fair value hierarchy).

Included in Profit_(Loss) Bef_3

Included in Profit/(Loss) Before Royalties and Taxation - Schedule of Amounts Included in Profit/(Loss) Before Royalties and Taxation (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of information about amounts included in profit before royalties and taxation [abstract]
Operating lease charges	$ 0	$ (2.3)	$ (2.4)
Damang - contract termination	(13.1)	0	0
Loss on buy-back of notes	(5)	0	0
Social contributions and sponsorships	(18)	(15.1)	(19.6)
Loss on sale of inventory	0	(8.9)	0
Rehabilitation (expense)/income	(13.4)	0.9	13.5
Restructuring costs	$ (0.6)	$ (113.9)	$ (9.2)

Included in Profit_(Loss) Bef_4

Included in Profit/(Loss) Before Royalties and Taxation - Schedule of Amounts Included in Profit/(Loss) Before Royalties and Taxation (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Line items represents amounts included in profit before royalties and taxation [line items]
Restructuring costs	$ 0.6	$ 113.9	$ 9.2
South deep [member]
Line items represents amounts included in profit before royalties and taxation [line items]
Restructuring costs	0.3	11.2	2.3
Damang [member]
Line items represents amounts included in profit before royalties and taxation [line items]
Restructuring costs		13.9	2.2
Tarkwa [member]
Line items represents amounts included in profit before royalties and taxation [line items]
Restructuring costs	$ 0.3	$ 88.8	$ 4.7

Royalties - Summary of Royaltie

Royalties - Summary of Royalties (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of information about royalty arrangements [line items]
Total royalties	[1]	$ (73.7)	$ (62.5)	$ (62)
South Africa [member]
Disclosure of information about royalty arrangements [line items]
Total royalties		$ (1.6)	$ (1)	$ (1.8)
Royalty percentage		0.50%	0.50%	0.50%
Foreign [member]
Disclosure of information about royalty arrangements [line items]
Total royalties		$ (72.1)	$ (61.5)	$ (60.2)
Australia [member]
Disclosure of information about royalty arrangements [line items]
Total royalties		$ (30.5)	$ (27.9)	$ (27.8)
Royalty percentage		2.50%	2.50%	2.50%
Ghana [member]
Disclosure of information about royalty arrangements [line items]
Total royalties		$ (43.8)	$ (31.3)	$ (27.1)
Royalty percentage		3.50%	3.00%	3.00%
Peru [member]
Disclosure of information about royalty arrangements [line items]
Royalty percentage		3.60%	4.00%	4.60%

[1]	Refer note 42.

Royalties - Summary of Royalt_2

Royalties - Summary of Royalties (Parenthetical) (Detail)	12 Months Ended
Royalties - Summary of Royalties (Parenthetical) (Detail)	Dec. 31, 2019USD ($)Times	Dec. 31, 2018	Dec. 31, 2017
Range One [member]
Disclosure of information about royalty arrangements [line items]
Gold royalty rate	3.00%
Range One [member] \| Bottom of range [member]
Disclosure of information about royalty arrangements [line items]
Average gold price	$ 0
Range One [member] \| Top of range [member]
Disclosure of information about royalty arrangements [line items]
Average gold price	$ 1,299.99
Range Two [member]
Disclosure of information about royalty arrangements [line items]
Gold royalty rate	3.50%
Range Two [member] \| Bottom of range [member]
Disclosure of information about royalty arrangements [line items]
Average gold price	$ 1,300
Range Two [member] \| Top of range [member]
Disclosure of information about royalty arrangements [line items]
Average gold price	$ 1,449.99
Range Three [member]
Disclosure of information about royalty arrangements [line items]
Gold royalty rate	4.10%
Range Three [member] \| Bottom of range [member]
Disclosure of information about royalty arrangements [line items]
Average gold price	$ 1,450
Range Three [member] \| Top of range [member]
Disclosure of information about royalty arrangements [line items]
Average gold price	$ 2,299.99
Range Four [member]
Disclosure of information about royalty arrangements [line items]
Gold royalty rate	5.00%
Range Four [member] \| Bottom of range [member]
Disclosure of information about royalty arrangements [line items]
Average gold price	$ 2,300
South Africa [member]
Disclosure of information about royalty arrangements [line items]
Royalty in refined minerals, description	The royalty in respect of refined minerals (which include gold refined to 99.5% and above and platinum) is calculated by dividing earnings before interest and taxes (“EBIT”) by the product of 12.5 times gross revenue calculated as a percentage, plus an additional 0.5%. EBIT refers to taxable mining income (with certain exceptions such as no deduction for interest payable and foreign exchange losses) before assessed losses but after capital expenditure.
Royalty effective rate	0.50%	0.50%	0.50%
Australia [member]
Disclosure of information about royalty arrangements [line items]
Royalty effective rate	2.50%	2.50%	2.50%
Peru [member]
Disclosure of information about royalty arrangements [line items]
Royalty effective rate	3.60%	4.00%	4.60%
Peru [member] \| Bottom of range [member]
Disclosure of information about royalty arrangements [line items]
Gold royalty rate	1.00%
Peru [member] \| Top of range [member]
Disclosure of information about royalty arrangements [line items]
Gold royalty rate	12.00%
Gold refined minerals [member] \| South Africa [member]
Disclosure of information about royalty arrangements [line items]
Gold refining percentage	99.50%
Refined minerals [member] \| South Africa [member]
Disclosure of information about royalty arrangements [line items]
Number of times gross revenue \| Times	12.5
Additional percentage	0.50%
Refined minerals [member] \| South Africa [member] \| Top of range [member]
Disclosure of information about royalty arrangements [line items]
Gold royalty rate	5.00%
Gold royalty [member] \| Australia [member]
Disclosure of information about royalty arrangements [line items]
Gold royalty rate	2.50%	2.50%	2.50%

Mining and Income Taxation - Su

Mining and Income Taxation - Summary of Components of Mining and Income Tax (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Disclosure of Components of Mining and Income Tax [Line Items]
- dividend withholding tax	$ (2.9)	$ (15.5)		$ 0
Total mining and income taxation	(175.6)	65.9	[1]	(173.2)	[1]
Major items causing the Group's income taxation to differ from the maximum South African statutory mining tax rate of 34.0% (2018: 34.0% and 2017: 34.0%) were:
Taxation on profit before taxation at maximum South African statutory mining tax rate	(119.1)	139.6		(51.8)
Rate adjustment to reflect the actual realised company tax rates in South Africa and offshore	17.9	(6.7)		19.2
Non-deductible share-based payments	(7)	(12.8)		(9.1)
Non-deductible exploration expense	(17)	(22.1)		(19.7)
Deferred tax assets not recognised on impairment and reversal of impairment of investments	(3.3)	(12.5)		13.3
Impairment of South Deep goodwill	0	(24.4)		(94.5)
Non-deductible interest paid	(29.9)	(25.5)		(24.2)
Share of results of equity-accounted investees, net of taxation	1.1	(4.5)		(0.4)
Non-taxable gain on acquisition of Asanko	0	17.6		0
Non-taxable fair value gain on Maverix warrants	1.4	1.3		0
Non-taxable profit on disposal of Maverix (2018: dilution of Gold Fields' interest in Maverix)	5	1.4		0
Net non-deductible expenditure and non-taxable income	(10.5)	(7.6)		(5.3)
Deferred tax on unremitted earnings at Tarkwa and Cerro Corona (2018: Tarkwa and Cerro Corona and 2017: Tarkwa)	(4.5)	(1.1)		(9.5)
Deferred taxation movement on Peruvian Nuevo Sol devaluation against US Dollar	0.1	(1.2)		5.2
Various Peruvian non-deductible expenses	(6.6)	(7.5)		(5.3)
Deferred tax assets not recognised at Cerro Corona3	(3.3)	(14.9)		(12.9)
Utilisation of tax losses not previously recognised at Damang	0	0		7.1
Deferred tax assets recognised at Damang (2017: Cerro Corona and Damang)	0	6.5		19.8
Additional capital allowances recognised at South Deep	0	69.8		0
Deferred tax charge on change of tax rate at South Deep	0	(10.9)		0
Prior year adjustments	(1)	(3)		(2.6)
Other	4	(0.1)		(2.5)
Total mining and income taxation	(175.6)	65.9	[1]	(173.2)	[1]
South African - Components of Mining and Income Tax [Member]
Disclosure of Components of Mining and Income Tax [Line Items]
- non-mining tax	0	0		(1.2)
- Company and capital gains taxation	(2.9)	(1.1)		(1.1)
- prior year adjustment - current taxation	0.2	0.7		0.2
- deferred taxation	(0.3)	208.5		12.1
Foreign Taxation - Components of Mining and Income Tax [Member]
Disclosure of Components of Mining and Income Tax [Line Items]
- prior year adjustment - current taxation	(1.1)	(3.7)		(2.8)
- deferred taxation	15.3	3.1		19.4
- current taxation	(184.1)	(127.9)		(199.8)
- dividend withholding tax	$ (2.7)	$ (13.7)		$ 0

[1]	Refer note 42.

Mining and Income Taxation - _2

Mining and Income Taxation - Summary of Components of Mining and Income Tax (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2014	May 30, 2018
Disclosure of Components of Mining and Income Tax [Line Items]
South African statutory mining tax rate	34.00%	34.00%	34.00%
South African Revenue Service [Member]
Disclosure of Components of Mining and Income Tax [Line Items]
Gross recognised capital allowance disallowed				$ 182.2
Legal settlement amount					$ 185.1
Capital allowance recognized				$ 925.5	$ 53.7
Deferred tax assets not recognized [member] \| Cerro Cerona and Damang [member]
Disclosure of Components of Mining and Income Tax [Line Items]
Deferred Tax assets at Cerro Cerona and Damang	$ 3.3	$ 14.9	$ 12.9
Deferred tax assets recognized [member] \| Cerro Cerona [member]
Disclosure of Components of Mining and Income Tax [Line Items]
Deferred Tax assets at Cerro Cerona and Damang	0	0	17.3
Deferred tax assets recognized [member] \| Damang [member]
Disclosure of Components of Mining and Income Tax [Line Items]
Deferred Tax assets at Cerro Cerona and Damang	$ 0	$ 6.5	$ 2.5

Mining and Income Taxation - _3

Mining and Income Taxation - Summary of Domestic and Foreign Current Tax Rates (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Domestic and Foreign Current Tax Rate [Line Items]
Current tax rates	29.00%	29.00%	30.00%
Ghana Tax [member] \| Non Mining Tax [member]
Disclosure of Domestic and Foreign Current Tax Rate [Line Items]
Current tax rates	32.50%	32.50%	32.50%
South African - Components of Mining and Income Tax [Member]
Disclosure of Domestic and Foreign Current Tax Rate [Line Items]
South African Mining Tax Formula	South African mining tax on mining income is determined according to a formula Y=34-170/X in 2019, 2018 and 2017	South African mining tax on mining income is determined according to a formula Y=34-170/X in 2019, 2018 and 2017	South African mining tax on mining income is determined according to a formula Y=34-170/X in 2019, 2018 and 2017
South African - Components of Mining and Income Tax [Member] \| Non Mining Tax [member]
Disclosure of Domestic and Foreign Current Tax Rate [Line Items]
Current tax rates	28.00%	28.00%	28.00%
South African - Components of Mining and Income Tax [Member] \| Company Tax Rate [member]
Disclosure of Domestic and Foreign Current Tax Rate [Line Items]
Current tax rates	28.00%	28.00%	28.00%
Australia Tax [member] \| Non Mining Tax [member]
Disclosure of Domestic and Foreign Current Tax Rate [Line Items]
Current tax rates	30.00%	30.00%	30.00%
Peru Tax [member] \| Non Mining Tax [member]
Disclosure of Domestic and Foreign Current Tax Rate [Line Items]
Current tax rates	29.50%	29.50%	29.50%

Mining and Income Taxation - _4

Mining and Income Taxation - Summary of Domestic and Foreign Current Tax Rates (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Mining Tax [member]
Disclosure of Domestic and Foreign Current Tax Rate [Line Items]
Effective mining tax rate for Gold Fields Operations Limited, GFI Joint Venture Holdings (Proprietary) Limited and owners of South Deep Mine	29.00%	29.00%	30.00%

Mining and Income Taxation - _5

Mining and Income Taxation - Summary of Estimated Available for Set-off Against Future Income Pre Tax (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
South African - Components of Mining and Income Tax [Member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Gross unredeemed capital expenditure	$ 1,743.8	$ 1,641.1
Gross tax losses	217.9	248.7
Gross deferred tax losses not recognised	0	0
International operations [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Gross unredeemed capital expenditure	0	0
Gross tax losses	514.4	510.9
Gross deferred tax losses not recognised	337.7	430
Abosso Goldfields Limited [member] \| International operations [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Gross unredeemed capital expenditure	0	0
Gross tax losses	176.7	80.9
Gross deferred tax losses not recognised	0	0
Gold Fields Operations Limited [Member] \| South African - Components of Mining and Income Tax [Member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Gross unredeemed capital expenditure	681.2	638
Gross tax losses	196.2	206.4
Gross deferred tax losses not recognised	0	0
GFI Joint Venture Holdings (Proprietary) Limited [Member] \| South African - Components of Mining and Income Tax [Member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Gross unredeemed capital expenditure	1,062.6	1,003.1
Gross tax losses	21.7	41
Gross deferred tax losses not recognised	0	0
Gold Fields Group Services Pty Limited [member] \| South African - Components of Mining and Income Tax [Member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Gross unredeemed capital expenditure	0	0
Gross tax losses	0	1.3
Gross deferred tax losses not recognised	0	0
Exploration Entities [member] \| International operations [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Gross unredeemed capital expenditure	0	0
Gross tax losses	337.7	430
Gross deferred tax losses not recognised	$ 337.7	$ 430

Mining and Income Taxation - _6

Mining and Income Taxation - Summary of Estimated Available for Set-off Against Future Income Pre Tax (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2014	May 30, 2018
South African Revenue Service [Member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Gross recognised capital allowance disallowed			$ 182.2
Legal settlement amount				$ 185.1
Capital allowance recognized			$ 925.5	$ 53.7
Abosso Goldfields Limited [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Tax losses carry forward period	5 years	5 years
Exploration Entities [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Total tax losses	$ 337.7	$ 430
Tax Losses Expire in 2 Years [Member] \| Abosso Goldfields Limited [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Tax losses	84.5	19
Tax Losses Expire in 3 Years [Member] \| Abosso Goldfields Limited [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Tax losses expiration value	46.2	2.9
Tax Losses Expire in 4 Years [Member] \| Abosso Goldfields Limited [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Tax losses expiration value	46	31.5
Tax Losses Expire in 5 Years [Member] \| Abosso Goldfields Limited [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Tax losses expiration value	0	27.5
Tax Losses Expiring Between 1 and 2 Years [Member] \| Exploration Entities [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Total tax losses	8.8	18.6
Tax Losses Expiring Between 2 and 5 Years [Member] \| Exploration Entities [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Total tax losses	15.2	27.6
Tax Losses Expiring Between 5 and 10 Years [Member] \| Exploration Entities [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Total tax losses	16.5	20.3
Tax Losses Expiring After 10 Years [Member] \| Exploration Entities [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Total tax losses	33	42.3
No Expiry Date [member] \| Exploration Entities [member]
Disclosure of Estimated Amount Available for Set Off Against Future Income Pretax [Line Items]
Total tax losses	$ 264.2	$ 320.9

Earnings Per Share - Details of

Earnings Per Share - Details of Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Earnings per share [abstract]
Basic earnings/(loss) per share from continuing operations	$ 0.20	$ (0.42)		$ (0.04)
Basic earnings/(loss) per share from discontinued operation	0	0		0.02
Diluted basic earnings/(loss) per share from continuing operations	$ 0.19	$ (0.42)		$ (0.04)
The weighted average number of shares has been adjusted by the following to arrive at the diluted number of ordinary shares:
Weighted average number of shares	827,386,603	821,532,707		820,611,806
Share options in issue	11,847,499	10,932,784		6,308,615
Diluted number of ordinary shares	839,234,102	832,465,491		826,920,421
Diluted basic earnings/(loss) per share from discontinued operation	$ 0	$ 0		$ 0.02
Headline earnings/(loss) per share from continuing operations	$ 0.20	$ 0.07		$ 0.26
Long-form headline earnings reconciliation
Profit/(Loss) attributable to owners of the parent from continuing operations	$ 161.6	$ (348.2)		$ (31.8)
Loss/(profit) on disposal of assets, net	(0.8)	37		(2.6)
Gross	(1.2)	51.6		(4)
Taxation effect	0.4	(12)		1.2
Non-controlling interest effect	0	(2.6)		0.2
Impairment, reversal of impairment and write-off of investments and assets and other, net	1.9	371.8		246.7
Impairment, net of reversal of impairment of investments and assets	9.8	520.3		200.2
Write-off of exploration and evaluation assets	30	37.7	[1]	51.5	[1]
Profit on disposal of Maverix (2018: profit on dilution of Gold Fields' interest in Maverix)	(33.8)	(4)		0
Gain on acquisition of Asanko	0	(51.8)	[1]	0	[1]
Release of foreign exchange reserve on disposal of subsidiary	4.6	0		0
Loss on disposal of subsidiary	0.3	0		0
Taxation effect	(9)	(130.4)		(4.3)
Non-controlling interest effect	0	0		(0.7)
Headline earnings	$ 162.7	$ 60.6		$ 212.3
Headline earnings/(loss) per share from discontinued operation	$ 0	$ 0		$ 0
Profit attributable to owners of the parent from discontinued operations	$ 0	$ 0		$ 13.1
Impairment and write-off of investments and assets and other, net	0	0		(15.5)
Gain on sale of discontinued operation	0	0		(23.5)
Write-off of exploration and evaluation assets	0	0		1.5
Taxation effect	0	0		6.5
Headline (loss)/earnings	$ 0	$ 0		$ (2.4)
Diluted headline earnings/(loss) per share from continuing operations	$ 0.19	$ 0.07		$ 0.26
Diluted headline (loss)/earnings per share from discontinued operations	$ 0	$ 0		$ 0

[1]	Refer note 42.

Earnings Per Share - Details _2

Earnings Per Share - Details of Earnings Per Share (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Basic earnings per share
Earnings attributable to owners of the parent from continuing operations	$ 161.6	$ (348.2)	$ (31.8)
Weighted average number of shares issued continuing operations	827,386,603	821,532,707	820,611,806
Profit from discontinued operations, net of taxation	$ 0	$ 0	$ 13.1
Weighted average number of ordinary shares in issue during period from discontinued operation	827,386,603	821,532,707	820,611,806
Diluted earnings per share
Profit/(loss) from continuing operations	$ 161.6	$ (348.2)	$ (31.8)
Diluted weighted average number of shares issued continuing operations	839,234,102	832,465,491	826,920,421
Diluted profit from discontinued operations, net of taxation	$ 0	$ 0	$ 13.1
Diluted weighted average number of ordinary shares in issue during period from discontinued operation	839,234,102	832,465,491	826,920,421
Headline earnings per share
Headline weighted average number of ordinary shares, continuing operation	827,386,603	821,532,707	820,611,806
Headline weighted average number of ordinary shares, discontinuing operation	827,386,603	821,532,707	820,611,806
Headline earnings	$ 162.7	$ 60.6	$ 212.3
Adjusted net earnings attributable to owners of the parent, discontinued operations	0	0	(2.4)
Diluted headline earnings per share
Diluted Headline earnings	$ 162.7	$ 60.6	$ 212.3
Diluted headline weighted average number of ordinary shares, continuing operation	839,234,102	832,465,491	826,920,421
Diluted headline weighted average number of ordinary shares, discontinuing operation	839,234,102	832,465,491	826,920,421
Adjusted net earnings attributable to owners of the parent, diluted discontinued operations	$ 0	$ 0	$ (2.4)

Dividends - Summary of Dividend

Dividends - Summary of Dividends (Detail)	12 Months Ended
Dividends - Summary of Dividends (Detail)	Dec. 31, 2019USD ($)$ / shares	Dec. 31, 2019R / shares	Dec. 31, 2018USD ($)$ / shares	Dec. 31, 2018R / shares	Dec. 31, 2017USD ($)$ / shares	Dec. 31, 2017R / shares
Disclosure of Dividends [line items]
Total dividends	$ 45.5		$ 45.5		$ 62.8
Dividends per share - cents \| $ / shares	$ 5		$ 6		$ 8
Final Dividend [Member]
Disclosure of Dividends [line items]
Dividends recognised as distribution to owners	$ 11.5		$ 34.7		$ 37.5
Dividends per share - cents \| R / shares		R 20		R 50		R 60
Interim Dividend [Member]
Disclosure of Dividends [line items]
Dividends recognised as distribution to owners	$ 34		$ 10.8		$ 25.3
Dividends per share - cents \| R / shares		R 60		R 20		R 40

Dividends - Summary of Divide_2

Dividends - Summary of Dividends (Parenthetical) (Detail)	12 Months Ended
Dividends - Summary of Dividends (Parenthetical) (Detail)	Dec. 31, 2019$ / shares	Dec. 31, 2019R / shares	Dec. 31, 2018$ / shares	Dec. 31, 2018R / shares	Dec. 31, 2017$ / shares	Dec. 31, 2017R / shares
Disclosure of Dividends [line items]
Dividends declared per share \| $ / shares	$ 5		$ 6		$ 8
Final Dividend [Member]
Disclosure of Dividends [line items]
Dividends declared per share		R 20		R 50		R 60
Dividend declared date	Feb. 15, 2019	Feb. 15, 2019
Interim Dividend [Member]
Disclosure of Dividends [line items]
Dividends declared per share		R 60		R 20		R 40
Approved dividend [member]
Disclosure of Dividends [line items]
Final dividend approved by the Board, Value		R 100
Dividend approved date	Feb. 12, 2020	Feb. 12, 2020

Discontinued Operation - Additi

Discontinued Operation - Additional Information (Detail) $ in Millions, $ in Millions	Oct. 02, 2017USD ($)	Oct. 02, 2017AUD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2019AUD ($)	Dec. 31, 2018USD ($)shares		Dec. 31, 2018AUD ($)shares	Dec. 31, 2017USD ($)shares		Dec. 31, 2017AUD ($)shares	Oct. 31, 2018AUD ($)
Disclosure Of Noncurrent Assets Held For Sale And Discontinued Operations [line items]
Profit on the sale assets			$ 1.2		$ (51.6)			$ 4
Percentage of shares held			19.90%	19.90%
Percentage of share holdings			19.90%	19.90%
Discontinued operations			$ 174.7		(344.8)			$ (7.7)
Mining Contractor Higher Market Value Percentage			25.00%	25.00%
Percentage of Premiums Payout Value			25.00%	25.00%
Red 5 Limited [Member]
Disclosure Of Noncurrent Assets Held For Sale And Discontinued Operations [line items]
Sale of investments			$ 20.9	$ 29.6
Discontinued operations			12.4	17.2
Darlot [Member]
Disclosure Of Noncurrent Assets Held For Sale And Discontinued Operations [line items]
Consideration from disposal										$ 18.5
Cash consideration from disposal										$ 12
Number of shares received from disposal \| shares								130,000,000		130,000,000
Upfront cash consideration received			$ 0	$ 7	$ 0	[1]		$ 5.4	[1]
Cash consideration receivable										$ 5
Cash consideration received											$ 5
Profit on the sale assets	$ 23.5	$ 30.8
Percentage of shares held	19.90%	19.90%
Percentage of share holdings	19.90%	19.90%
Darlot [Member] \| Red 5 Limited [Member]
Disclosure Of Noncurrent Assets Held For Sale And Discontinued Operations [line items]
Shares received under underwriting agreement related to disposal of discontinued operation \| shares					116,875,821		116,875,821
Consideration received under underwriting agreement related to disposal of discontinued operation							$ 5.8

[1]	Refer note 42.

Discontinued Operation - Summar

Discontinued Operation - Summary of Results of Discontinued Operation (Detail) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2017AUD ($)
Disclosure Of Noncurrent Assets Held For Sale And Discontinued Operations [line items]
Revenue	$ 2,967.1	$ 2,577.8	$ 2,761.8
Profit/(loss) before taxation	350.3	(410.7)	152.4
Loss for the year from operating activities	0	0	13.1
Profit attributable to owners of the parent from discontinued operations	$ 0	$ 0	13.1
Darlot [Member]
Disclosure Of Noncurrent Assets Held For Sale And Discontinued Operations [line items]
Revenue			49
Cost of sales			(50.7)
Cost of sales before gold inventory change and amortisation and depreciation			(46.3)
Gold inventory change			(0.9)
Amortisation and depreciation			(3.5)
Other costs, net			(1.9)
Loss before royalties and taxation			(3.6)
Royalties			(1.1)
Profit/(loss) before taxation			(4.7)
Mining and income taxation			1.4
Loss for the year from operating activities			(3.3)
Gain on sale of discontinued operation			23.5	$ 30.8
Income tax on gain on sale of discontinued operation			(7.1)
Profit attributable to owners of the parent from discontinued operations			$ 13.1

Discontinued Operation - Summ_2

Discontinued Operation - Summary of Assets and Liabilities of Discontinued Operation (Detail) - 12 months ended Dec. 31, 2017 - Darlot [Member] $ in Millions, $ in Millions	USD ($)	AUD ($)	AUD ($)
Disclosure Of Noncurrent Assets Held For Sale And Discontinued Operations [line items]
Property, plant and equipment	$ 3.3		$ 4.3
Inventories	7.2		9.4
Trade and other receivables	0.1		0.1
Trade and other payables	(8.7)		(11.3)
Environmental rehabilitation costs provision	(12.9)		(16.9)
Net liabilities	(11)		$ (14.4)
Total consideration received less costs to sell	12.5	$ 16.4
Gain on sale of discontinued operations	$ 23.5	$ 30.8

Discontinued Operation - Summ_3

Discontinued Operation - Summary of Assets and Liabilities of Discontinued Operation (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019AUD ($)
Disclosure Of Noncurrent Assets Held For Sale And Discontinued Operations [abstract]
Total consideration from disposal	$ 16.4
Consideration per agreement	$ 18.5

Discontinued Operations - Summa

Discontinued Operations - Summary of Termination Of Contract (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Statement [LineItems]
Profit (loss) from discontinued operations	$ 0	$ 0		$ 13.1
Trade and other payables	594.4	$ 417.5	[1]	$ 463.1
BCM Ghana Limited [Member]
Statement [LineItems]
Profit (loss) from discontinued operations	13.1
Trade and other payables	40.3
Mining Fleet [Member] \| BCM Ghana Limited [Member]
Statement [LineItems]
Mining fleet	31.2
Trade and other payables	31.2
Premium On Minining Fleet [Member] \| BCM Ghana Limited [Member]
Statement [LineItems]
Profit (loss) from discontinued operations	7.8
Trade and other payables	7.8
Demobilisation Costs [Member] \| BCM Ghana Limited [Member]
Statement [LineItems]
Profit (loss) from discontinued operations	1.3
Trade and other payables	1.3
Early Terminations [Member] \| BCM Ghana Limited [Member]
Statement [LineItems]
Profit (loss) from discontinued operations	$ 4

[1]	Refer note 42.

Property, Plant and Equipment -

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Disclosure of detailed information about property, plant and equipment [line items]
Write-off of exploration and evaluation assets		$ 30	$ 37.7	[1]	$ 51.5	[1]
General borrowing costs capitalised	[2]	43.4	17.5		22.9
Carrying value at end of the year		4,657.1	4,259.2	[1]
IFRS 16 [member]
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets capitalised (refer note 33)		67.3
Cost Price Property Plant And Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balance at beginning of the year		10,276.3	10,560.7
Reclassifications		0	0
Additions		612.5	814.2
Finance leases capitalised (refer note 33)		0	96.2
Reclassification of finance lease assets to right-of-use assets on adoption of IFRS 16		0	0
Right-of-use assets capitalised (refer note 33)		209.6	0
Remeasurements of right-of-use assets capitalised (refer note 33)	[3]	5.9	0
General borrowing costs capitalised	[4]	31	17.5
Disposals		(14.3)	(528.7)
Disposal of subsidiary		(10)
Scrapping of assets		(388.1)
Changes in estimates of rehabilitation assets		66.1	24.1
Translation adjustment		116.1	(707.7)
Balance at end of the year		10,972.4	10,276.3		10,560.7
Accumulated depreciation and impairment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balance at beginning of the year		6,017.1	5,667.8
Charge for the year		610	668.4
Reclassification of finance lease assets to right-of-use assets on adoption of IFRS 16		0
Impairment and reversal of impairment, net	[5]	0.2	411.7
Write-off of exploration and evaluation assets	[6]	30	37.7
Disposals		(11.8)	(398.2)
Disposal of subsidiary		(4.1)
Scrapping of assets		(388.1)
Translation adjustment		62	(370.3)
Balance at end of the year		6,315.3	6,017.1		5,667.8
Right Of Use Assets Relating To Mine Development Infrastructure And Other Assets [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Carrying value at end of the year		329
Right Of Use Assets Relating To Mine Development Infrastructure And Other Assets [Member] \| IFRS 16 [member]
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets capitalised (refer note 33)		67.3
Right Of Use Assets Relating To Mine Development Infrastructure And Other Assets [Member] \| Cost Price Property Plant And Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balance at beginning of the year		0
Reclassifications		0.4
Additions		0
Finance leases capitalised (refer note 33)		0
Reclassification of finance lease assets to right-of-use assets on adoption of IFRS 16		88.6
Right-of-use assets capitalised (refer note 33)		209.6
Remeasurements of right-of-use assets capitalised (refer note 33)	[3]	5.9
General borrowing costs capitalised	[4]	0
Disposals		0
Disposal of subsidiary		0
Scrapping of assets		(0.3)
Changes in estimates of rehabilitation assets		0
Translation adjustment		1.5
Balance at end of the year		373	0
Right Of Use Assets Relating To Mine Development Infrastructure And Other Assets [Member] \| Accumulated depreciation and impairment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balance at beginning of the year		0
Charge for the year		42
Reclassification of finance lease assets to right-of-use assets on adoption of IFRS 16		1.3
Impairment and reversal of impairment, net	[5]	0.2
Write-off of exploration and evaluation assets	[6]	0
Disposals		0
Disposal of subsidiary		0
Scrapping of assets		(0.3)
Translation adjustment		0.8
Balance at end of the year		44	0
Mine development infrastructure and other assets [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Carrying value at end of the year	[7]	3,939.4	3,680.7	[3]
Mine development infrastructure and other assets [Member] \| IFRS 16 [member]
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets capitalised (refer note 33)	[7]	0
Mine development infrastructure and other assets [Member] \| Cost Price Property Plant And Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balance at beginning of the year	[7]	9,662.3	9,886.4	[3]
Reclassifications	[7]	271.7	10.4	[3]
Additions	[7]	582.1	800.2	[3]
Finance leases capitalised (refer note 33)	[7]	0	96.2	[3]
Reclassification of finance lease assets to right-of-use assets on adoption of IFRS 16	[7]	(88.6)	0	[3]
Right-of-use assets capitalised (refer note 33)	[7]	0	0	[3]
Remeasurements of right-of-use assets capitalised (refer note 33)	[7]	0	0	[3]
General borrowing costs capitalised	[7]	31	17.5	[3]
Disposals	[7]	(11)	(494.6)	[3]
Disposal of subsidiary	[7]	(10)
Scrapping of assets	[7]	(381.6)
Changes in estimates of rehabilitation assets	[7]	0	0	[3]
Translation adjustment	[7]	111.2	(653.8)	[3]
Balance at end of the year	[7]	10,167.1	9,662.3		9,886.4	[3]
Mine development infrastructure and other assets [Member] \| Accumulated depreciation and impairment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balance at beginning of the year	[7]	5,981.6	5,633.1	[3]
Charge for the year	[7]	555.1	658.3	[3]
Reclassification of finance lease assets to right-of-use assets on adoption of IFRS 16	[7]	(1.3)
Impairment and reversal of impairment, net	[7]	0	411.7	[3]
Write-off of exploration and evaluation assets	[7]	30	37.7	[3]
Disposals	[7]	(8.7)	(391.6)	[3]
Disposal of subsidiary	[7]	(4.1)
Scrapping of assets	[7]	(381.6)
Translation adjustment	[7]	56.7	(367.6)	[3]
Balance at end of the year	[7]	6,227.7	5,981.6		5,633.1	[3]
Land mineral rights and rehabilitation assets [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Carrying value at end of the year		388.7	578.5
Land mineral rights and rehabilitation assets [Member] \| IFRS 16 [member]
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets capitalised (refer note 33)		0
Land mineral rights and rehabilitation assets [Member] \| Cost Price Property Plant And Equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balance at beginning of the year		614	674.3
Reclassifications		(272.1)	(10.4)
Additions		30.4	14
Finance leases capitalised (refer note 33)		0	0
Reclassification of finance lease assets to right-of-use assets on adoption of IFRS 16		0	0
Right-of-use assets capitalised (refer note 33)		0	0
Remeasurements of right-of-use assets capitalised (refer note 33)	[3]	0	0
General borrowing costs capitalised	[4]	0	0
Disposals		(3.3)	(34.1)
Disposal of subsidiary		0
Scrapping of assets		(6.2)
Changes in estimates of rehabilitation assets		66.1	24.1
Translation adjustment		3.4	(53.9)
Balance at end of the year		432.3	614		674.3
Land mineral rights and rehabilitation assets [Member] \| Accumulated depreciation and impairment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Balance at beginning of the year		35.5	34.7
Charge for the year		12.9	10.1
Reclassification of finance lease assets to right-of-use assets on adoption of IFRS 16		0
Impairment and reversal of impairment, net	[5]	0	0
Write-off of exploration and evaluation assets	[6]	0	0
Disposals		(3.1)	(6.6)
Disposal of subsidiary		0
Scrapping of assets		(6.2)
Translation adjustment		4.5	(2.7)
Balance at end of the year		$ 43.6	$ 35.5		$ 34.7

[1]	Refer note 42.
[2]	Borrowing costs capitalised of US$43.4 million comprise borrowing costs relating to general borrowings of US$31.0 million and specific borrowings of US$12.4 million. The specific borrowings of US$12.4 million relate to the Gruyere project and are included in additions to property, plant and equipment of US$612.5 million (refer note 13).
[3]	The remeasurements relate mainly to leases at the Group’s Australian operations that have variable payments linked to the Austalian consumer price index (“CPI”).
[4]	General borrowing costs of US$31.0 million (2018: US$17.5 million) arising on group general borrowings were capitalised during the period and comprised US$20.0 million (2018: US9.9 million) borrowings costs related to the Damang reinvestment project and US$11.0 million (2018: US7.6 million) borrowings costs related to the Gruyere project. An average interest capitalisation rate of 6.2% (2018: 5.9%) was applied.
[5]	The impairment of US$0.2 million (2018: US$411.7 million) is made up of US$0.2 million (2018: US$1.9 million) impairment of property, plant and equipment and US$nil (2018: US$409.8 million) impairment of the South Deep cash-generating unit.
[6]	The write-off of exploration and evaluation assets is due to specific exploration programmes not yielding results to warrant further exploration at the Group’s Australian operations and the US$30.0 million (2018: US$37.7 million) is included in the US$84.4 million (2018: US$104.2 million) “Exploration expense” in the consolidated income statement.
[7]	Included in the cost of mine development, infrastructure and other assets are exploration and evaluation assets amounting to US$nil (2018: US$12.6 million).

Property, Plant and Equipment_2

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Parenthetical) (Detail) R in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2019USD ($)	Dec. 31, 2019ZAR (R)	Dec. 31, 2018USD ($)		Dec. 31, 2018ZAR (R)	Dec. 31, 2017USD ($)		Dec. 31, 2017ZAR (R)	Jan. 01, 2018USD ($)
Disclosure of detailed information about property, plant and equipment [line items]
Carrying value of asset		$ 4,657.1		$ 4,259.2	[1]					$ 4,892.9
Borrowing costs	[2]	$ 43.4		$ 17.5			$ 22.9
Average interest capitalisation rate		6.20%	6.20%	5.90%		5.90%
Write-off of exploration and evaluation assets - continuing operations		$ 30		$ 37.7	[1]		51.5	[1]
Exploration expense		84.4		104.2			109.8
Cost Price Property Plant And Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Borrowing costs	[3]	31		17.5
Accumulated depreciation and impairment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Impairment and reversal of impairment, net		0.2		411.7
Impairment		0.2		1.9
South Deep Mine [member]
Disclosure of detailed information about property, plant and equipment [line items]
Impairment		0	R 0	481.5		R 6,470.9	277.8		R 3,495,000
Damang Mining Fleet and Related Spare [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Borrowing costs		20		9.9
Damang Mining Fleet and Related Spare [Member] \| Gruyere Mining Company Pty Ltd [member]
Disclosure of detailed information about property, plant and equipment [line items]
Borrowing costs		11		7.6
Other impaired assets [member] \| South Deep Mine [member]
Disclosure of detailed information about property, plant and equipment [line items]
Impairment		0	R 0	409.8	[4]	R 5,507	$ 0		R 0
Mine development infrastructure and other assets [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Carrying value of asset	[5]	3,939.4		3,680.7	[6]
Mine development infrastructure and other assets [Member] \| Cost Price Property Plant And Equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Borrowing costs	[5]	31		17.5	[6]
Mine development infrastructure and other assets [Member] \| Exploration and evaluation assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Carrying value of asset		$ 0		$ 12.6

[1]	Refer note 42.
[2]	Borrowing costs capitalised of US$43.4 million comprise borrowing costs relating to general borrowings of US$31.0 million and specific borrowings of US$12.4 million. The specific borrowings of US$12.4 million relate to the Gruyere project and are included in additions to property, plant and equipment of US$612.5 million (refer note 13).
[3]	General borrowing costs of US$31.0 million (2018: US$17.5 million) arising on group general borrowings were capitalised during the period and comprised US$20.0 million (2018: US9.9 million) borrowings costs related to the Damang reinvestment project and US$11.0 million (2018: US7.6 million) borrowings costs related to the Gruyere project. An average interest capitalisation rate of 6.2% (2018: 5.9%) was applied.
[4]	For the year ended 31 December 2019, the Group recognised an impairment of Rnil (US$nil) (2018: R6,470.9 million (US$481.5 million) and 2017: R3,495.0 billion (US$277.8 million)) in respect of the South Deep cash-generating unit due to the deferral of production. Rnil (US$nil) (2018: R963.9 million (US$71.7 million) and 2017: R3,495.0 billion (US$277.8 million)) of the total impairment was firstly allocated against goodwill and the remainder of Rnil (US$nil) (2018: R5,507.0 million (US$409.8 million) and 2017: Rnil (US$nil)) against other assets. The recoverable amount was based on its FVLCOD calculated using a combination of the market and the income approach (level 3 of the fair value hierarchy).
[5]	Included in the cost of mine development, infrastructure and other assets are exploration and evaluation assets amounting to US$nil (2018: US$12.6 million).
[6]	The remeasurements relate mainly to leases at the Group’s Australian operations that have variable payments linked to the Austalian consumer price index (“CPI”).

Goodwill - Changes in Goodwill

Goodwill - Changes in Goodwill (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Reconciliation of changes in goodwill [abstract]
Balance at beginning of the year	$ 0	[1]	$ 76.6
Impairment	0		(71.7)		$ (277.8)
Translation adjustment	0		(4.9)
Balance at end of the year	$ 0		$ 0	[1]	$ 76.6

[1]	Refer note 42.

Goodwill - Additional Informati

Goodwill - Additional Information (Detail) oz in Millions, R in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)$ / ozZAR-kg$ / per_ozoz		Dec. 31, 2019ZAR (R)$ / ozZAR-kg$ / per_ozoz	Dec. 31, 2018USD ($)$ / oz$ / per_oz	Dec. 31, 2018ZAR (R)$ / oz$ / per_oz	Dec. 31, 2017USD ($)		Dec. 31, 2017ZAR (R)
Disclosure of information about Goodwill [line items]
Impairment \| $	$ 0			$ 71.7		$ 277.8
Annual life of mine				12 years	12 years
Resource ounces \| oz	24.5		24.5
Rand [member]
Disclosure of information about Goodwill [line items]
Nominal discount rate	14.10%		14.10%	13.50%	13.50%
Fair value of gold per resource ounce \| $ / per_oz	16		16	17	17
Within one year [member] \| Rand [member]
Disclosure of information about Goodwill [line items]
Long-term gold price \| ZAR-kg	525,000		525,000
Within one year [member] \| US Dollars [member]
Disclosure of information about Goodwill [line items]
Long-term gold price \| $ / oz	1,200		1,200	1,200	1,200
Later than one year [member] \| Rand [member]
Disclosure of information about Goodwill [line items]
Long-term gold price \| ZAR-kg	550,000		550,000
Annual life of mine	75 years		75 years
Later than one year [member] \| US Dollars [member]
Disclosure of information about Goodwill [line items]
Long-term gold price \| $ / oz	1,300		1,300	1,300	1,300
Annual life of mine	75 years		75 years
Goodwill [member] \| South Deep Mine [member]
Disclosure of information about Goodwill [line items]
Impairment	$ 0	[1]	R 0	$ 71.7	R 963.9	$ 277.8	[1]	R 3,495,000

[1]	For the year ended 31 December 2019, the Group recognised an impairment of Rnil (US$nil) (2018: R6,470.9 million (US$481.5 million) and 2017: R3,495.0 billion (US$277.8 million)) in respect of the South Deep cash-generating unit due to the deferral of production. Rnil (US$nil) (2018: R963.9 million (US$71.7 million) and 2017: R3,495.0 billion (US$277.8 million)) of the total impairment was firstly allocated against goodwill and the remainder of Rnil (US$nil) (2018: R5,507.0 million (US$409.8 million) and 2017: Rnil (US$nil)) against other assets. The recoverable amount was based on its FVLCOD calculated using a combination of the market and the income approach (level 3 of the fair value hierarchy).

Acquisition of Asanko Gold - Ad

Acquisition of Asanko Gold - Additional Information (Detail) - USD ($) $ in Millions	Mar. 29, 2018	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about business combination [line items]
Key assumptions used to determine fair value of redeemable preference shares			$ 129.9
Redeemable preference shares		$ 95.5	$ 132.9	[1]
Redeemable Preference Shares [Member]
Disclosure of detailed information about business combination [line items]
Redeemable preference shares		$ 20
Asanko Gold Ghana Limited [member]
Disclosure of detailed information about business combination [line items]
Interest in subsidiary	45.00%
Government of Ghana ownership retained	10.00%
Adansi Gold Company Ghana Limited [member]
Disclosure of detailed information about business combination [line items]
Interest in subsidiary	50.00%
Shika Group Finance Limited [member]
Disclosure of detailed information about business combination [line items]
Interest in subsidiary	50.00%

[1]	Refer note 42.

Acquisition Of Asanko Gold - Su

Acquisition Of Asanko Gold - Summary of Acquisition Date Fair Value of Major Class of Consideration Transferred (Detail) $ in Millions	Dec. 31, 2018USD ($)
Disclosure of detailed information about business combination [line items]
Total consideration transferred	$ 165
Asanko [member]
Disclosure of detailed information about business combination [line items]
Cash - Asanko redeemable preference shares and equity	$ 165

Acquisition Of Asanko Gold - _2

Acquisition Of Asanko Gold - Summary of Gain on Acquisition (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017	[1]
Disclosure of detailed information about business combination [abstract]
Total fair value of assets acquired		$ 216.8
Redeemable preference shares equity financial asset acquired		129.9
Fair value of identifiable net assets acquired		86.9
Consideration transferred		(165)
Gain on acquisition	$ 0	$ 51.8	[1]	$ 0

[1]	Refer note 42.

Acquisition of Asanko Gold - _3

Acquisition of Asanko Gold - Summary of Key Assumptions Used to Determine Fair Value of Redeemable Preference Shares at Acquisition (Detail) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jan. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about business combination [abstract]
Par value of the preference shares			$ 165
Market-related interest rate	7.85%	8.50%	7.85%
Expected redemption period - 2020 to 2023	5 years	8 years	5 years

Acquisition of Asanko Gold - _4

Acquisition of Asanko Gold - Summary of Key Assumptions Used to Determine Fair Value of the Net Identifiable Assets Acquired (Detail) - $ / oz	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about business combination [line items]
Discount rate		10.27%
Life-of-mine - 2019 to 2030		12 years
Within one year [member] \| US Dollars [member]
Disclosure of detailed information about business combination [line items]
US$ gold price	1,200	1,200
Later than one year [member] \| US Dollars [member]
Disclosure of detailed information about business combination [line items]
US$ gold price	1,300	1,300
Life-of-mine - 2019 to 2030	75 years

Equity-Accounted Investees - Su

Equity-Accounted Investees - Summary of Equity-Accounted Investees (Detail) - USD ($) shares in Thousands, $ in Millions		Mar. 29, 2018	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016	Jan. 01, 2018
Disclosure of equity-accounted investees [line items]
Non-current assets			$ 5,460.2	$ 5,183.2	[1]				$ 5,505.7
Current assets			1,069.9	726.5	[1]				959.1
Non-current liabilities			(2,284.8)	(2,670.9)	[1]				(2,363.1)
Current liabilities			(1,367.8)	(531.9)	[1]				$ (738.7)
Consideration paid for equity portion				165
Gain on acquisition			0	51.8	[1]	$ 0	[1]
Carrying amount of interest in joint venture			172	177.5
Revenue			2,967.1	2,577.8		2,761.8
Total equity-accounted investees			172	225.1
Total share of results of equity-accounted investees after taxation			3.1	(13.1)		(1.3)
Depreciation and amortisation			(610)	(668.4)		(748.1)
Other expenses			(67.6)	(44.8)		(19)
Royalties	[1]		(73.7)	(62.5)		(62)
Income tax expense			(175.6)	65.9	[1]	(173.2)	[1]
Profit/(loss) for the year			174.7	(344.8)		(7.7)
Other comprehensive income			54.3	(330)		279.2
Total comprehensive income			229	(674.8)		271.5
Profit on disposal			1.2	(51.6)		4
Asanko Gold Ghana Limited [member]
Disclosure of equity-accounted investees [line items]
Interest on joint venture		45.00%
Total share of results of equity-accounted investees after taxation			4.1	(1.1)		$ 0
Shika Group Finance Limited [member]
Disclosure of equity-accounted investees [line items]
Interest on joint venture		50.00%
Adansi Gold Company Ghana Limited [member]
Disclosure of equity-accounted investees [line items]
Interest on joint venture		50.00%
Far Southeast Gold Resources Incorporated [member]
Disclosure of equity-accounted investees [line items]
Initial investment at cost			82.1	91.7
Share of accumulated losses brought forward			(92.2)	(79.3)
Share of loss after taxation			(1.4)	(12.9)
Carrying amount of interest in joint venture			$ 82.1	$ 91.7
Interest on joint venture			40.00%	40.00%		40.00%
Total share of results of equity-accounted investees after taxation			$ (1.4)	$ (12.9)		$ (1.6)
Asanko Gold [member]
Disclosure of equity-accounted investees [line items]
Non-current assets			474.6	441.6
Initial investment at cost			86.9	86.9
Current assets			120	109.3
Non-current liabilities			(79.4)	(34.2)
Current liabilities			(62.2)	(52.7)
Net assets			453	464
Less: Shika redeemable preference shares			(271.4)	(291.4)
Net assets attributable to ordinary shareholders			181.6	172.6
Group's share of net assets			89.9	85.8
Cash consideration paid			165	165
Less: consideration allocated to the redeemable preference shares (note 17)			(129.9)	(129.9)
Consideration paid for equity portion			35.1	35.1
Gain on acquisition			51.8	51.8
Share of accumulated losses brought forward			0	0
Share of loss after taxation			4.1	(1.1)
Carrying amount of interest in joint venture			89.9	85.8
Revenue			341	122
Production costs			(199.2)	(79)
Depreciation and amortisation			(95.4)	(34.3)
Other expenses			(20.1)	(4.9)
Royalties			(17.2)	(6.2)
Income tax expense			0	0
Profit/(loss) for the year			9.1	(2.4)
Other comprehensive income			0	0
Total comprehensive income			9.1	(2.4)
Group's share of total comprehensive income			4.1	(1.1)
Asanko Gold [member] \| Asanko Gold Ghana Limited [member]
Disclosure of equity-accounted investees [line items]
Carrying amount of interest in joint venture			$ 9.5	5.4
Interest on joint venture			45.00%
Asanko Gold [member] \| Shika Group Finance Limited [member]
Disclosure of equity-accounted investees [line items]
Carrying amount of interest in joint venture			$ 80.4	80.4
Interest on joint venture			50.00%
Asanko Gold [member] \| Adansi Gold Company Ghana Limited [member]
Disclosure of equity-accounted investees [line items]
Carrying amount of interest in joint venture			$ 0	0
Interest on joint venture			50.00%
Investment in associates [member]
Disclosure of equity-accounted investees [line items]
Total equity-accounted investees			$ 0	47.6
Marverix Metals Incorporated [Member]
Disclosure of equity-accounted investees [line items]
Total equity-accounted investees			0	47.6
Total share of results of equity-accounted investees after taxation			0.4	0.9		0.3
The sale of the shares raised			66.8
Profit on disposal			$ 14.6	$ 4				$ 48
Common shares			4,125	10,000				10,000
Percentage of ownership on diluted basis			3.68%
Other [Member]
Disclosure of equity-accounted investees [line items]
Total equity-accounted investees			$ 0	$ 0
Total share of results of equity-accounted investees after taxation			$ 0	$ 0		$ 0

[1]	Refer note 42.

Equity-Accounted Investees - _2

Equity-Accounted Investees - Summary of Equity-Accounted Investees (Parenthetical) (Detail) - USD ($) $ in Millions	Mar. 29, 2018	Mar. 31, 2012	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2011	Dec. 31, 2010	Jan. 01, 2018
Disclosure of equity-accounted investees [line items]
cash and cash equivalents includes in cash and cash equivalents			$ 515	$ 219.7	[1]	$ 393.8	[1]	$ 471	[1]			$ 393.8
Profit on disposal			1.2	(51.6)		$ 4
Rusoro Mining Limited ("Rusoro")			172	225.1
Investment in associate			0	0
Top of range [member]
Disclosure of equity-accounted investees [line items]
Nominal value			0.1	0.1
Asanko Gold Ghana Limited [member]
Disclosure of equity-accounted investees [line items]
Interest on joint venture	45.00%
Government of Ghana ownership retained	10.00%
Shika Group Finance Limited [member]
Disclosure of equity-accounted investees [line items]
Interest on joint venture	50.00%
Adansi Gold Company Ghana Limited [member]
Disclosure of equity-accounted investees [line items]
Interest on joint venture	50.00%
Far Southeast Gold Resources Incorporated [member]
Disclosure of equity-accounted investees [line items]
Option to acquire		40.00%									60.00%
Non-refundable down payment		$ 110								$ 66	$ 44
Remaining percentage of ownership not yet exercised		20.00%
Unlisted shares at cost			230	230
Equity contribution			93.6	92.2
Cumulative impairment			(147.9)	(138.3)
Share of accumulated losses brought forward			(92.2)	(79.3)
Share of loss after taxation			(1.4)	(12.9)
Total investment in joint venture3			$ 82.1	$ 91.7
Option remains exercisable			20.00%
Option to acquire shares			20.00%
Interest on joint venture			40.00%	40.00%		40.00%
Asanko Gold [member]
Disclosure of equity-accounted investees [line items]
Share of accumulated losses brought forward			$ 0	$ 0
Share of loss after taxation			4.1	(1.1)
Total investment in joint venture3			86.9	86.9
cash and cash equivalents includes in cash and cash equivalents			$ 43.7	$ 21.6
Asanko Gold [member] \| Asanko Gold Ghana Limited [member]
Disclosure of equity-accounted investees [line items]
Interest on joint venture			45.00%
Government of Ghana ownership retained			10.00%
Asanko Gold [member] \| Shika Group Finance Limited [member]
Disclosure of equity-accounted investees [line items]
Interest on joint venture			50.00%
Asanko Gold [member] \| Adansi Gold Company Ghana Limited [member]
Disclosure of equity-accounted investees [line items]
Interest on joint venture			50.00%
Marverix Metals Incorporated [Member]
Disclosure of equity-accounted investees [line items]
Common Shares								42,850,000
Common shares			4,125,000	10,000,000				10,000,000
Common shares issued				60,000,000
Common shares purchase warrants				10,000,000
Interest on listed entity			28.00%	20.00%
Profit on disposal			$ 14.6	$ 4				$ 48
Listed shares at cost			42.1	42.1
Profit on dilution of Gold Fields' interest in Maverix			4	4
Transaction costs capitalised			0.3	0.3
Share of accumulated profits brought forward			1.2	0.3
Share of profit after taxation			0.4	0.9
Rusoro Mining Limited ("Rusoro")			0	47.6
Derecognition of associate			(48)	0
Investment in associate			$ 0	47.6
Fair value of investment based on quoted market price				$ 74.7
Rusoro Mining Limited [member]
Disclosure of equity-accounted investees [line items]
Percentage of remaining shares			25.70%	25.70%
Rusoro Mining Limited ("Rusoro")			$ 0	$ 0
Fair value of investment based on quoted market price			$ 6.5	$ 13.4
Lepanto Consolidated Mining Company [member]
Disclosure of equity-accounted investees [line items]
Option fees											$ 10
Percentage of remaining shares		60.00%

[1]	Refer note 42.

Equity-Accounted Investees - Ad

Equity-Accounted Investees - Additional Information (Detail) - USD ($)	Dec. 06, 2017	Aug. 22, 2016	Dec. 31, 2019	Dec. 31, 2018		Oct. 19, 2018	Jan. 01, 2018	Dec. 31, 2010
Disclosure of equity-accounted investees [line items]
Carrying value write down due to loss incurred by the entity			$ 172,000,000	$ 225,100,000	[1]		$ 171,300,000
Rusoro Mining Limited [member]
Disclosure of equity-accounted investees [line items]
Carrying value write down due to loss incurred by the entity								$ 0
Fair value of investment based on quoted market price			6,500,000	13,400,000
Unrecognised share of profits			4,200,000	2,600,000
Cumulative unrecognised share of losses			202,800,000	$ 198,600,000
Pre and post award		$ 967,800,000
Excess of pre and post award		$ 1,200,000,000
Arbitration settlement	$ 1,300,000,000
Accrued interest percentage				9.00%
Total settlement agreement amount						$ 1,280,000,000
Maverix [member]
Disclosure of equity-accounted investees [line items]
Disposal of associates			33,800,000
Derecognition Fair value of Investment			19,200,000
Asanko Gold [member]
Disclosure of equity-accounted investees [line items]
Impact of fair value adjustment in property plant and equiment			$ 39,600,000

[1]	Refer note 42.

Interest in Joint Operation - A

Interest in Joint Operation - Additional Information (Detail) - Gruyere Gold project [member] oz in Millions, $ in Millions, $ in Millions	Dec. 13, 2016	Dec. 31, 2018USD ($)oz	Dec. 31, 2018AUD ($)oz	Dec. 31, 2017AUD ($)	Dec. 31, 2016AUD ($)
Disclosure of joint operations [line items]
Percentage of ownership in joint operation: Gruyere Gold project	50.00%
Proportion of ownership interest in joint venture with Gold Road Resources		50.00%	50.00%
Acquisition date fair value of total consideration transferred			$ 350
Percentage of royalty			1.50%
Share of production after total mine production in ounces \| oz		2	2
Cash Consideration paid on effective date			$ 250
Deferred Payment			100
Transaction costs incurred		$ 13.3	18.5
Cash consideration - deferred payment paid			$ 15	$ 78	$ 7

Interest in Joint Operation - S

Interest in Joint Operation - Summary of Share of Joint Operation and Includes Inter-company Transactions and Balances (Detail) $ in Millions, $ in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2019AUD ($)	Dec. 31, 2018USD ($)		Dec. 31, 2018AUD ($)	Jan. 01, 2018USD ($)	Dec. 31, 2017USD ($)		Dec. 31, 2016USD ($)	[1]
Non-current assets
Property, plant and equipment	$ 4,657.1		$ 4,259.2	[1]		$ 4,892.9
Current assets	1,069.9		726.5	[1]		959.1
Cash and cash equivalents	515		219.7	[1]		393.8	$ 393.8	[1]	$ 471
Inventories	417.8		368.2	[1]		393.5
Prepayments	42.5		43.3	[1]
Total assets	6,561.3		5,909.7	[1]		6,504.8	6,504.8
Total equity
Retained earnings	1,190		1,073.9	[1]		1,471.1
Non-current liabilities	2,284.8		2,670.9	[1]		2,363.1
Deferred taxation	433.6		454.9	[1]		453.9
Long-term incentive plan	11.5		2.1	[1]		0
Current liabilities	1,367.8		531.9	[1]		738.7
Trade and other payables	594.4		417.5	[1]		463.1	$ 463.1
Current portion of lease liability	287.7		80.1	[1]		0
Total equity and liabilities	6,561.3		5,909.7	[1]		$ 6,504.8
Joint operations [member]
Non-current assets
Property, plant and equipment	623	$ 887.6	554.6		$ 788.6
Current assets	27.5	39.3	11.7		16.5
Cash and cash equivalents	6.5	9.3	2.1		3
Inventories	18.3	26.1	0.8		1.1
Prepayments	0	0	6.4		9.1
Other receivables	2.7	3.9	2.4		3.3
Total assets	650.5	926.9	566.3		805.1
Total equity
Retained earnings	(0.6)	(0.8)	(4.7)		(6.7)
Non-current liabilities	147.3	209.9	119.7		170.3
Deferred taxation	50.2	71.6	30.5		43.3
Lease liabilities	79.4	113.1	76.5		108.8
Environmental rehabilitation costs	17.6	25.1	12.7		18.2
Long-term incentive plan	0.1	0.1	0		0
Current liabilities	503.8	717.8	451.3		641.5
Related entity loans payable	480.4	684.5	439		624.1
Trade and other payables	17.5	24.9	7.7		10.9
Current portion of lease liability	5.9	8.4	4.6		6.5
Total equity and liabilities	$ 650.5	$ 926.9	$ 566.3		$ 805.1

[1]	Refer note 42.

Investments - Summary of Invest

Investments - Summary of Investments (Detail) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jan. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Listed
At fair value through OCI (2017: available for sale financial assets)		$ 47.9	$ 93
Unlisted
Asanko redeemable preference shares		95.5	132.9
Other		0	0.1
Derivative instruments
Warrants		11.7	9.3
Total investments		155.1	235.3
Fair value at acquisition		132.9	129.9
Purchase of preference shares		20	0
Redemption of preference shares		(10)	0
Net change in fair value (recognised in OCI)		(47.4)	3
Fair value at end of the year		$ 95.5	$ 132.9
Market-related interest rate	7.85%	8.50%	7.85%
Expected redemption period	5 years	8 years	5 years

Investments - Summary of Inve_2

Investments - Summary of Investments (Parenthetical) (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2016
Disclosure of detailed information about investment property [line items]
Redeemable preference shares	174,939,999	164,939,999
Redeemable preference shares, par value	$ 174,939,999	$ 164,939,999
Fair value adjustments through other comprehensive income	$ 47.4
Marverix Metals Incorporated [Member]
Disclosure of detailed information about investment property [line items]
Common share purchase warrants	4,125,000	10,000,000	10,000,000
Asanko Gold [member]
Disclosure of detailed information about investment property [line items]
Investment Fairvalue	$ 21.2
Cardinal Resources Limited [member]
Disclosure of detailed information about investment property [line items]
Investment Fairvalue	17.1
Magmatic Resources Limited [member]
Disclosure of detailed information about investment property [line items]
Investment Fairvalue	3
Chakana Copper Corp [member]
Disclosure of detailed information about investment property [line items]
Investment Fairvalue	$ 3

Environmental Trust Funds - Sch

Environmental Trust Funds - Schedule of Environmental Trust Funds (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Environmental Trust Funds [abstract]
Balance at beginning of the year	$ 60.8	[1]	$ 55.5
Contributions from continuing operations	7.1		7.7
Interest earned	0.7		0.6	[1]	$ 0.5	[1]
Translation adjustment	0.9		(3)
Balance at end of the year	$ 69.5		$ 60.8	[1]	$ 55.5

[1]	Refer note 42.

Environmental Trust Funds - Add

Environmental Trust Funds - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Environmental Trust Funds [abstract]
Term deposit	$ 16.8	$ 14.8
Cash deposit	$ 52.7	$ 46

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018		Jan. 01, 2018
Classes of current inventories [abstract]
Gold-in-process and stockpiles	$ 375.1	$ 325
Consumable stores	183.7	176.5
Total inventories	558.8	501.5
Heap leach and stockpiles inventories included in non-current assets	(141)	(133.3)	[1]	$ (132.8)
Total current inventories	$ 417.8	$ 368.2

[1]	Refer note 42.

Inventories - Schedule of Inv_2

Inventories - Schedule of Inventories (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Classes of current inventories [abstract]
Consumable stores	$ 270.4	$ 280	$ 346.7

Trade and Other Receivables - S

Trade and Other Receivables - Schedule of Trade and Other Receivables (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	[1]
Trade and other receivables [abstract]
Trade receivables - gold sales and copper concentrate	$ 23.6	$ 15.3
Trade receivables - other	18.1	16.5
Oil derivatives contracts (2018: Gold, copper and oil)	1.1	8.3
Receivables due from the sale of Tarkwa mining fleet	26.5	26.5
Deposits	0.1	0.2
Payroll receivables	2.4	2.9
Prepayments	42.5	43.3
Value added tax and import duties	16	18.1
Diesel rebate	0.9	1.1
Other	5.9	6.4
Total trade and other receivables	$ 137.1	$ 138.6

[1]	Refer note 42.

Trade and Other Receivables -_2

Trade and Other Receivables - Schedule of Trade and Other Receivables (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Australian oil derivative contracts [member]
Trade and Other Receivables [line items]
Gold and oil derivative contracts	$ 1	$ 1.7	$ 5.1
Ghanaian oil derivative contracts [member]
Trade and Other Receivables [line items]
Gold and oil derivative contracts	0.1	3	9
Ghanaian gold derivative contracts [member]
Trade and Other Receivables [line items]
Gold and oil derivative contracts	0	2.4	0
Gold derivative contracts at south deep [member]
Trade and Other Receivables [line items]
Gold and oil derivative contracts	0	0	10.9
Peruvian copper derivative contracts [member]
Trade and Other Receivables [line items]
Gold and oil derivative contracts	$ 0	$ 1.2	$ 0

Cash and Cash Equivalents - Sch

Cash and Cash Equivalents - Schedule of Cash and Cash Equivalents (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018		Jan. 01, 2018	Dec. 31, 2017	[1]	Dec. 31, 2016	[1]
Cash and cash equivalents [abstract]
Cash at bank and on hand	$ 515	$ 219.7
Total cash and cash equivalents	$ 515	$ 219.7	[1]	$ 393.8	$ 393.8		$ 471

[1]	Refer note 42.

Stated Capital - Schedule of St

Stated Capital - Schedule of Stated Capital (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Jan. 01, 2018	May 25, 2017	May 24, 2017
Disclosure of classes of share capital [line items]
Stated capital	$ 3,622.5	$ 3,622.5	[1]	$ 3,622.5
Stated capital	3,622.5	$ 3,622.5	[1]	$ 3,622.5
Exercise of employee share options		0
Authorised						1,000,000,000
Ordinary Shares [member]
Disclosure of classes of share capital [line items]
Stated capital	3,622.5	$ 3,622.5
Stated capital	$ 3,622.5	$ 3,622.5
In issue at 1 January	821,532,707	821,532,707
Exercise of employee share options	7,100,000
In issue at 31 December	828,632,707	821,532,707
Authorised	2,000,000,000	2,000,000,000			1,000,000,000	1,000,000,000

[1]	Refer note 42.

Stated Capital - Additional Inf

Stated Capital - Additional Information (Detail) - $ / shares	May 22, 2018	Dec. 31, 2019	Dec. 31, 2018	May 25, 2017	May 24, 2017
Disclosure of classes of share capital [line items]
Shares authorised					1,000,000,000
Par value per share					$ 0.5
Top of range [member]
Disclosure of classes of share capital [line items]
Buy back of ordinary shares during any financial year as percentage of issued share capital	20.00%
Top of Range Issued Share Capital [member]
Disclosure of classes of share capital [line items]
Percentage of authorised but unissued stated capital as percentage of issued stated capital	5.00%
Ordinary Shares [member]
Disclosure of classes of share capital [line items]
Shares authorised		2,000,000,000	2,000,000,000	1,000,000,000	1,000,000,000
No par value per share				$ 0	$ 0

Share Capital - Summary of Bene

Share Capital - Summary of Beneficial Shareholders (Detail)	12 Months Ended
Share Capital - Summary of Beneficial Shareholders (Detail)	Dec. 31, 2018shares
Government Employees Pension Fund [member]
Disclosure of beneficial ownership [line items]
Number of shares	53,726,997
Percentage of issued ordinary shares	6.48%
VanEck Vectors Gold Miners ETF [member]
Disclosure of beneficial ownership [line items]
Number of shares	52,395,279
Percentage of issued ordinary shares	6.32%

Deferred Taxation - Schedule of

Deferred Taxation - Schedule of Detailed Components of Net Deferred Taxation Liability (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Jan. 01, 2018
Liabilities
Liabilities	$ 1,053.1	$ 864.7
Assets
Assets	(885)	(679.3)
Unrealised loss on financial instruments	(38.3)	(6.8)
Net deferred taxation liabilities	168.1	185.4
Included in the statement of financial position as follows:
Deferred taxation assets	(265.5)	(269.5)	[1]	$ (72)
Deferred taxation liabilities	433.6	454.9	[1]	$ 453.9
Net deferred taxation liabilities	168.1	185.4
Balance at beginning of the year	185.4	381.9
Recognised in profit or loss - continuing operations	(15)	(211.6)
Recognised in OCI	8.4	(4)
Translation adjustment	(10.7)	19.1
Balance at end of the year	168.1	185.4
Mining Assets [member]
Liabilities
Liabilities	908.3	835.7
Right-of-use assets [member]
Liabilities
Liabilities	101.5
Environmental Trust Funds [member]
Liabilities
Liabilities	3.7	3.2
Inventories [member]
Liabilities
Liabilities	13.3	11.3
Unremitted earnings [member]
Liabilities
Liabilities	13.3	9.3
Other [member]
Liabilities
Liabilities	13	5.2
Provisions [member]
Assets
Assets	(117.4)	(95.8)
Tax Losses [member]
Assets
Assets	(120.6)	(98.4)
Unredeemed Capital Expenditure [member]
Assets
Assets	(505.7)	(475.9)
Finance lease liability [member]
Assets
Assets	(103)	(2)
Deferred Tax Assets Other [member]
Assets
Assets	$ 0	$ (0.4)

[1]	Refer note 42.

Borrowings - Schedule of Borrow

Borrowings - Schedule of Borrowings (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	[1]	Jan. 01, 2018	Dec. 31, 2017	[1]	Dec. 31, 2016
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 1,845.8	$ 1,906.8			$ 1,782.4
Current borrowings	(684.9)	(92.5)		$ (194.5)	(194.5)
Non-current borrowings	1,160.9	1,814.3		$ 1,587.9	1,587.9
US $1 Billion Notes [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 601.4	849.4			847.9		$ 846.4	[1]
Name of borrower	Orogen
Maturity date	7 October 2020
US $1 Billion Notes [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	4.875
US$500 million 5-year notes issue (the 5-year notes) [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 496.3	0			0
Name of borrower	Orogen
Maturity date	15 May 2024
US$500 million 5-year notes issue (the 5-year notes) [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	5.125
US$500 million 10-year notes issue (the 10-year notes) [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 496.1	0			0
Name of borrower	Orogen
Maturity date	15 May 2029
US$500 million 10-year notes issue (the 10-year notes) [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	6.125
US$150 million revolving senior secured credit facility - old [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	0			0		82	[1]
Name of borrower	La Cima
Nominal interest rate	LIBOR plus 1.63
Commitment fee	0.65%
Maturity date	19 September 2017
US$150 million revolving senior secured credit facility - New [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 83.5	83.5			83.5		0	[1]
Name of borrower	La Cima
Commitment fee	0.50%
Maturity date	19 September 2020
US$150 million revolving senior secured credit facility - New [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	LIBOR plus 1.20
US$70 million revolving credit facility [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	0			0		45	[1]
Name of borrower	Ghana
Nominal interest rate	LIBOR plus 2.450
Commitment fee	1.00%
Maturity date	6 May 2017
US$100 million revolving senior secured credit facility [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	45			45		0	[1]
Name of borrower	Ghana
Commitment fee	1.40%
Maturity date	30 November 2021
US$100 million revolving senior secured credit facility [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	LIBOR plus 3.50
A$500 million syndicated revolving credit facility [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 168.5	316.5			231.5
Name of borrower	Gruyere
Commitment fee	0.87%
Maturity date	24 May 2021
A$500 million syndicated revolving credit facility [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	BBSY plus 2.175
US$1,290 million term loan and revolving credit facilities [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	472			380		658.5	[1]
Facility A (US $380 Million) [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	380			380
Name of borrower	Orogen
Maturity date	6 June 2020
Facility A (US $380 Million) [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	LIBOR plus 2.25
Facility B (US $360 Million) [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	92			0
Name of borrower	Orogen
Commitment fee	0.68%
Maturity date	6 June 2021
Facility B (US $360 Million) [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	LIBOR plus 1.95
Facility C (US $550 Million) [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	0			0
Name of borrower	Orogen
Commitment fee	0.77%
Maturity date	6 June 2021
Facility C (US $550 Million) [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	LIBOR plus 2.20
US$1,200 million revolving credit facilities [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	0			0
Facility A (US$600 million 3-year revolving credit facility) [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	0			0
Name of borrower	Orogen/Ghana
Commitment fee	0.51%
Maturity date	25 July 2022
Facility A (US$600 million 3-year revolving credit facility) [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	LIBOR plus 1.45
Facility B (US$600 million 5-year revolving credit facility) [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	0			0
Name of borrower	Orogen/Ghana
Commitment fee	0.60%
Maturity date	25 July 2024
Facility B (US$600 million 5-year revolving credit facility) [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	LIBOR plus 1.70
R 1,500 Million Nedbank Revolving Credit Facility - old [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	0			79.5		0
Name of borrower	GFIJVH/GFO
Commitment fee	0.85%
Maturity date	7 March 2018
R 1,500 Million Nedbank Revolving Credit Facility - old [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	JIBAR plus 2.50
R 1,500 million Nedbank revolving credit facility - new [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	0			0
Name of borrower	GFIJVH/GFO
Commitment fee	0.90%
Maturity date	8 May 2023
R 1,500 million Nedbank revolving credit facility - new [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	JIBAR plus 2.80
R 500 million Standard Bank revolving credit facility [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	13.7			0		0	[1]
Name of borrower	GFIJVH/GFO
Commitment fee	1.05%
Maturity date	31 March 2020
R 500 million Standard Bank revolving credit facility [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	JIBAR plus 2.75
R 500 million Absa Bank revolving credit facility [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	34.2			0		0	[1]
Name of borrower	GFIJVH/GFO
Commitment fee	0.8925%
Maturity date	31 March 2020
R 500 million Absa Bank revolving credit facility [member] \| Fixed Interest Rate [member]
Disclosure of detailed information about borrowings [line items]
Nominal interest rate	JIBAR plus 2.55
Short-term Rand Uncommitted Credit Facilities [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	$ 0	$ 92.5			$ 115		$ 61	[1]
Name of borrower	0
Nominal interest rate	0
Maturity date	0

[1]	Refer note 42.

Borrowings - Schedule of Borr_2

Borrowings - Schedule of Borrowings (Parenthetical) (Detail) R in Millions, $ in Millions

May 09, 2019USD ($)

May 27, 2019USD ($)

Dec. 31, 2019USD ($)

Dec. 31, 2019AUD ($)

Dec. 31, 2019ZAR (R)

Jul. 25, 2019USD ($)

Dec. 31, 2018USD ($)

Dec. 31, 2017USD ($)

Jul. 17, 2017USD ($)

Dec. 31, 2016USD ($)

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 1,200,000,000

$ 1,290,000,000

Outstanding Notes

1,845,800,000

1,906,800,000

[1]

$ 1,782,400,000

[1]

Total proceeds from issue of notes and debentures

$ 1,000,000,000

Average borrowings interest rate

5.625%

Revolving Credit Facility [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 1,290,000,000

Revolving Credit Facility [member] | Gold Fields Ghana Holdings [member]

Disclosure of detailed information about borrowings [line items]

Revolving Credit Facilities

1,200,000,000

US $1 Billion Notes [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

1,000,000,000

Unamortized transaction costs

1,300,000

3,000,000

Profit on buy back of notes

17,700,000

Outstanding Notes

$ 601,400,000

849,400,000

[1]

847,900,000

[1]

$ 846,400,000

[1]

Notes Maturity

7 October 2020

US$500 million 5-year notes issue (the 5-year notes)

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 500,000,000

Proceeds From Issuance Of Bonds

$ 500,000,000

Notes Maturity

5-year notes

Interest Rate On Notes

5.125%

US$500 million 10-year notes issue (the 10-year notes)

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

500,000,000

Proceeds From Issuance Of Bonds

$ 500,000,000

Notes Maturity

10-year notes

Interest Rate On Notes

6.125%

US$150 million revolving senior secured credit facility - old [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

150,000,000

Outstanding Notes

$ 0

[1]

82,000,000

[1]

Notes Maturity

19 September 2017

US$150 million revolving senior secured credit facility - New [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 150,000,000

Outstanding Notes

$ 83,500,000

83,500,000

[1]

83,500,000

[1]

Notes Maturity

19 September 2020

US$70 million revolving credit facility [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 70,000,000

Outstanding Notes

$ 0

[1]

45,000,000

[1]

Notes Maturity

6 May 2017

US$100 million revolving senior secured credit facility [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 100,000,000

Outstanding Notes

$ 0

45,000,000

[1]

45,000,000

[1]

Notes Maturity

30 November 2021

A$500 million syndicated revolving credit facility [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 500

Outstanding Notes

$ 168,500,000

316,500,000

[1]

231,500,000

[1]

Notes Maturity

24 May 2021

Facility A (US $380 Million) [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 380,000,000

Outstanding Notes

$ 0

380,000,000

[1]

380,000,000

[1]

Notes Maturity

6 June 2020

Facility B (US $360 Million) [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 360,000,000

Outstanding Notes

$ 0

92,000,000

[1]

Notes Maturity

6 June 2021

Facility C (US $550 Million) [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 550,000,000

Outstanding Notes

$ 0

[1]

Notes Maturity

6 June 2021

US$1,200 million revolving credit facilities [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 1,200,000,000

Outstanding Notes

[1]

Facility A (US$600 million 3-year revolving credit facility) [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

600,000,000

Outstanding Notes

$ 0

[1]

Notes Maturity

25 July 2022

Facility B (US$600 million 5-year revolving credit facility) [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 600,000,000

Outstanding Notes

$ 0

[1]

Notes Maturity

25 July 2024

R 1,500 Million Nedbank Revolving Credit Facility - old [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings | R

R 1,500

Outstanding Notes

$ 0

[1]

79,500,000

[1]

Notes Maturity

7 March 2018

R 1,500 million Nedbank revolving credit facility - new [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings | R

1,500

Outstanding Notes

$ 0

[1]

Notes Maturity

8 May 2023

R 500 million Standard Bank revolving credit facility [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings | R

500

Outstanding Notes

$ 0

13,700,000

[1]

Notes Maturity

31 March 2020

R 500 million Absa Bank revolving credit facility [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings | R

R 500

Outstanding Notes

$ 0

34,200,000

[1]

Notes Maturity

31 March 2020

US$1,290 million term loan and revolving credit facilities [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 1,290,000,000

Outstanding Notes

$ 472,000,000

[1]

380,000,000

[1]

$ 658,500,000

[1]

US $147.6 Million Notes [member]

Disclosure of detailed information about borrowings [line items]

Purchase of notes, amount

147,600,000

Purchase price per US$1,000

$ 880

Borrowing financed, description

the purchase of an aggregate principal amount of notes equal to US$147.6 million at the purchase price of US$880 per US$1,000 in principal amount of notes. GFA intends to hold the notes acquired until their maturity on 7 October 2020. The group recognised a profit of US$17.7 million on the buy back of the 2020 notes.

US 250 million due on 2020 [member]

Disclosure of detailed information about borrowings [line items]

Profit on buy back of notes

$ 5,000,000

Outstanding Notes

$ 250,000,000

Percentage At Shares Repurchased

102.00%

US 250 million due on 2020 [member] | Previously stated [member]

Disclosure of detailed information about borrowings [line items]

Percentage At Shares Repurchased

101.73%

5-year notes [member]

Disclosure of detailed information about borrowings [line items]

Unamortized transaction costs

$ 3,700,000

10-year notes [member]

Disclosure of detailed information about borrowings [line items]

Unamortized transaction costs

$ 3,900,000

3 year revolving credit facility [member] | Revolving Credit Facility [member] | Tranches One [member]

Disclosure of detailed information about borrowings [line items]

Line of Credit Facility Remaining Borrowings

600,000,000

5 year revolving credit facilit [member] | Revolving Credit Facility [member] | Tranches Two [member]

Disclosure of detailed information about borrowings [line items]

Line of Credit Facility Current Borrowings

$ 600,000,000

US$70 million revolving senior secured credit facility [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 70,000,000

US$108 million revolving senior secured credit facility [member]

Disclosure of detailed information about borrowings [line items]

Face amount of borrowings

$ 108,000,000

[1]

Refer note 42.

Borrowings - Summary of Borrowi

Borrowings - Summary of Borrowings under Credit Facilities (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	$ 1,906.8		$ 1,782.4
Loans advanced		1,538		690	[1]	$ 787.6	[1]
Repayments		(1,604.3)		(535.9)	[1]	(702.5)	[1]
Balance at end of the year		1,845.8		1,906.8	[1]	1,782.4	[1]
Fixed rate with no exposure to repricing (US$1 billion notes issue)		1,593.8		849.4	[1]	847.9	[1]
Variable rate with exposure to repricing (six months or less)		252		1,057.4	[1]	934.5	[1]
Undrawn borrowing facilities committed		1,727.6		1,097.7	[1]	1,305.1	[1]
Uncommitted		116.8		20.3	[1]	16.2	[1]
Total undrawn borrowing facilities		1,844.4		1,118	[1]	1,321.3	[1]
Within one year [member]
Disclosure of detailed information about borrowings [line items]
Undrawn borrowing facilities committed		137.9		0	[1]	39.7	[1]
Later Than One Year And Not Later Than Two Years [member]
Disclosure of detailed information about borrowings [line items]
Undrawn borrowing facilities committed		282.5		93	[1]	0	[1]
Later Than Two Years And Not Later Than Three Years [member]
Disclosure of detailed information about borrowings [line items]
Undrawn borrowing facilities committed		600		902.2	[1]	715.4	[1]
Later Than Three Years and Not Later Than Five Years [member]
Disclosure of detailed information about borrowings [line items]
Undrawn borrowing facilities committed		707.1		102.5	[1]	550	[1]
US Dollars [member]
Disclosure of detailed information about borrowings [line items]
Borrowing denominated in currencies		1,677.3		1,449.9	[1]	1,356.4	[1]
Australia, Dollars [member]
Disclosure of detailed information about borrowings [line items]
Borrowing denominated in currencies		168.5		316.5	[1]	231.5	[1]
Rand [member]
Disclosure of detailed information about borrowings [line items]
Borrowing denominated in currencies		0		140.4	[1]	194.5	[1]
US $1 Billion Notes [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	849.4		847.9		846.4
Buy-back of notes		(255)		0	[1]	0	[1]
Loss on buy-back of notes		5		0	[1]	0	[1]
Unwinding of transaction costs		2		1.5	[1]	1.5	[1]
Balance at end of the year		601.4		849.4	[1]	847.9	[1]
US$500 million 5-year notes issue [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	0		0
Loans advanced		500		0	[1]
transaction costs		(4.1)		0	[1]	0	[1]
Unwinding of transaction costs		0.4		0	[1]	0	[1]
Loans advanced	[1]					0
Balance at end of the year		496.3		0	[1]	0	[1]
US$500 million 10-year notes issue (the 10-year notes) [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	0		0
Loans advanced		500		0	[1]
transaction costs		(4.1)		0	[1]	0	[1]
Unwinding of transaction costs		0.2		0	[1]	0	[1]
Loans advanced	[1]					0
Balance at end of the year		496.1		0	[1]	0	[1]
US$150 million revolving senior secured credit facility - old [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	0		0		82
Repayments		0		0	[1]	(82)	[1]
Balance at end of the year		0		0	[1]	0	[1]
US$150 million revolving senior secured credit facility - New [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	83.5		83.5		0
Loans advanced		0		0	[1]	83.5	[1]
Balance at end of the year		83.5		83.5	[1]	83.5	[1]
US$70 million revolving senior secured credit facility [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	0		0		45
Repayments		0		0	[1]	(45)	[1]
Balance at end of the year		0		0	[1]	0	[1]
US$100 million revolving senior secured credit facility [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	45		45		0
Loans advanced	[1]					45
Loans advanced		0		0	[1]
Repayments		(45)		0	[1]	0	[1]
Balance at end of the year		0		45	[1]	45	[1]
A $500 million syndicated revolving credit facility [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	316.5		231.5		0
Loans advanced	[1]					236.6
Loans advanced		0		119.9	[1]
Repayments		(143.6)		0	[1]	0	[1]
Translation adjustment		(4.4)		(34.9)	[1]	(5.1)	[1]
Balance at end of the year		168.5		316.5	[1]	231.5	[1]
R 500 million Standard Bank revolving credit facility [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	13.7		0		0
Loans advanced	[1]					0
Loans advanced		21.2		13.7	[1]
Repayments		(35.1)		0	[1]	0	[1]
Translation adjustment		0.2		0	[1]	0	[1]
Balance at end of the year		0		13.7	[1]	0	[1]
R 1,500 Million Nedbank Revolving Credit Facility [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year		0	[1]	79.5	[1]	0
Loans advanced						78.5
Loans advanced		0		20.7	[1]
Repayments		0		(107.7)	[1]	0
Translation adjustment		0		7.5	[1]	1
Balance at end of the year		0		0	[1]	79.5	[1]
US$1,290 million term loan and revolving credit facilities [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	472		380		658.5
Loans advanced		434.4		382.6	[1]	73.5	[1]
Repayments		(906.4)		(290.6)	[1]	(352)	[1]
Balance at end of the year		0		472	[1]	380	[1]
R 500 million Absa Bank revolving credit facility [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	34.2		0		0
Loans advanced	[1]					0
Loans advanced		0		36.1	[1]
Repayments		(34.5)		0	[1]	0	[1]
Translation adjustment		0.3		(1.9)	[1]	0	[1]
Balance at end of the year		0		34.2	[1]	0	[1]
Short-term Rand Uncommitted Credit Facilities [member]
Disclosure of detailed information about borrowings [line items]
Balance at beginning of the year	[1]	92.5		115		61
Loans advanced	[1]					270.5
Loans advanced		90.6		117	[1]
Repayments		(184.7)		(137.6)	[1]	(223.5)	[1]
Translation adjustment		1.6		(1.9)	[1]	7	[1]
Balance at end of the year		$ 0		$ 92.5	[1]	$ 115	[1]

[1]	Refer note 42.

Provisions - Schedule of Provis

Provisions - Schedule of Provisions (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018		Jan. 01, 2018
Disclosure of Provisions [line items]
Environmental rehabilitation costs	$ 289.6	$ 281.5	$ 281.5	$ 370.3	$ 289.6
Silicosis settlement costs				21.2	25.1
Other				4.2	4.8
Total provisions				$ 391.1	$ 319.5	[1]	$ 321.3
Environmental rehabilitation costs Balance at beginning of the year	289.6	281.5
Changes in estimates	79.5	23.2
Interest expense	11.7	11.7	12.1
Payments	(10.7)	(9.6)
Translation adjustment	0.2	(17.2)
Environmental rehabilitation costs balance at end of the year	370.3	289.6	$ 281.5
Total gross closure cost estimates	436.3	399.9
South Africa [member]
Disclosure of Provisions [line items]
Total gross closure cost estimates	45.9	41.8
Ghana [member]
Disclosure of Provisions [line items]
Total gross closure cost estimates	105.6	100.4
Australia [member]
Disclosure of Provisions [line items]
Total gross closure cost estimates	198.2	178.2
Peru [member]
Disclosure of Provisions [line items]
Total gross closure cost estimates	86.2	79.1
CHILE
Disclosure of Provisions [line items]
Total gross closure cost estimates	$ 0.4	$ 0.4

[1]	Refer note 42.

Provisions - Schedule of Assump

Provisions - Schedule of Assumption in Provision Calculation (Detail)	Dec. 31, 2019	Dec. 31, 2018
South Africa [member]
Disclosure of Provisions [line items]
Inflation rate	5.40%	5.50%
Discount rate	10.30%	10.00%
Ghana [member]
Disclosure of Provisions [line items]
Inflation rate	2.50%	2.20%
Discount rate		10.30%
Australia [member]
Disclosure of Provisions [line items]
Inflation rate	2.50%	2.50%
Peru [member]
Disclosure of Provisions [line items]
Inflation rate	2.50%	2.20%
Discount rate	3.00%	4.20%
CHILE
Disclosure of Provisions [line items]
Inflation rate	2.50%	2.20%
Discount rate	2.60%	3.60%
Bottom of range [member] \| Ghana [member]
Disclosure of Provisions [line items]
Discount rate	7.70%
Bottom of range [member] \| Australia [member]
Disclosure of Provisions [line items]
Discount rate	1.20%	2.30%
Top of range [member] \| Ghana [member]
Disclosure of Provisions [line items]
Discount rate	7.90%
Top of range [member] \| Australia [member]
Disclosure of Provisions [line items]
Discount rate	1.60%	2.50%

Provisions - Summary of Silicos

Provisions - Summary of Silicosis Settlement Costs (Detail) R in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)		Dec. 31, 2019ZAR (R)	Dec. 31, 2018ZAR (R)	Jan. 01, 2018USD ($)
Statement [LineItems]
Balance at the beginning of the year	$ 25.1	$ 31.9
Changes in estimates	(1.6)	(4.5)
Unwinding of provision recognised as finance expense	1.3	2
Payment	(4.6)	0
Translation	1	(4.3)
Balance at end of the year	21.2	25.1
Current portion of silicosis settlement costs	(4.6)	0	[1]			$ 0
Non-current portion of silicosis settlement costs	16.6	25.1
Silicosis [Member]
Statement [LineItems]
Balance at end of the year	21.2	25.1		R 297.1	R 367.8
Current portion of silicosis settlement costs	(4.6)	0
Non-current portion of silicosis settlement costs	$ 16.6	$ 25.1

[1]	Refer note 42.

Long-term Incentive Plan - Summ

Long-term Incentive Plan - Summary of Long-term Incentive Plan (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Disclosure of long-term incentive plan [abstract]
Opening balance	$ 2.1	$ 18.1
Charge to income statement	9.1	1.1	[1]	$ 5	[1]
Payments	0	(17.8)
Translation adjustment	0.3	0.7
Balance at end of the year	$ 11.5	$ 2.1		$ 18.1

[1]	Refer note 42.

Provisions - Silicosis Settleme

Provisions - Silicosis Settlement Costs - Additional Information (Detail) R in Millions, $ in Millions	Dec. 31, 2019USD ($)	Dec. 31, 2019ZAR (R)	Dec. 31, 2018USD ($)	Dec. 31, 2018ZAR (R)
Disclosure of Provisions [line items]
Provisions	$ 21.2		$ 25.1
Silicosis [Member]
Disclosure of Provisions [line items]
Provisions	21.2	R 297.1	$ 25.1	R 367.8
Nominal amount of provision	$ 29.2	R 408.4
Silicosis [Member] \| Government bonds [member]
Disclosure of Provisions [line items]
Discount rate on government bonds	10.08%	10.08%	8.74%	8.74%

Trade and Other Payables - Summ

Trade and Other Payables - Summary of Trade and Other Payables (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	[1]	Dec. 31, 2017
Trade and other payables [abstract]
Trade payables	$ 138.1	$ 60.4		$ 105.4
Accruals and other payables	195.4	236.7		238.8
Payroll payables	36.8	44.3		51.7
Gold and foreign exchange derivative contracts	127.6	22.6		3.3
Leave pay accrual	44.7	43		42.5
Interest payable on loans	11.5	10.5		10.2
Damang - contract termination	40.3			11.2
Total trade and other payables	$ 594.4	$ 417.5		$ 463.1

[1]	Refer note 42.

Trade and Other Payables - Su_2

Trade and Other Payables - Summary of Trade and Other Payables (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Disclosure of trade and other payables [line items]
Gold and foreign exchange derivative contracts	$ 127.6	$ 22.6	[1]	$ 3.3
Australian gold derivative contracts [member]
Disclosure of trade and other payables [line items]
Gold and foreign exchange derivative contracts	78.3	12.3
Gold derivative contracts at south deep [member]
Disclosure of trade and other payables [line items]
Gold and foreign exchange derivative contracts	12.6	1.6
Australian foreign exchange derivative contracts [member]
Disclosure of trade and other payables [line items]
Gold and foreign exchange derivative contracts	0.3	8.7
Gold derivative contracts at ghana [member]
Disclosure of trade and other payables [line items]
Gold and foreign exchange derivative contracts	$ 36.4	$ 0

[1]	Refer note 42.

Cash Generated by Operations -

Cash Generated by Operations - Summary of Cash Generated by Operations (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Cash flows from (used in) operating activities [abstract]
Profit/(loss) from continuing operations		$ 174.7	$ (344.8)	[1]	$ (20.8)	[1]
Mining and income taxation		175.6	(65.9)	[1]	173.2	[1]
Royalties	[1]	73.7	62.5		62
Interest expense		132.6	91.8	[1]	91.2	[1]
Interest received		(6.6)	(6.8)	[1]	(5.1)	[1]
Amortisation and depreciation		610	668.4	[1]	748.1	[1]
Interest expense - environmental rehabilitation		11.7	11.7	[1]	12.1	[1]
Non-cash rehabilitation expense/(income)		13.4	(0.9)	[1]	(13.5)	[1]
Interest received - environmental trust funds		(0.7)	(0.6)	[1]	(0.5)	[1]
Impairment, net of reversal of impairment of investments and assets		9.8	520.3	[1]	200.2	[1]
Write-off of exploration and evaluation assets		30	37.7	[1]	51.5	[1]
(Profit)/loss on disposal of assets		(1.2)	51.6	[1]	(4)	[1]
Gain on acquisition of Asanko		0	(51.8)	[1]	0	[1]
Unrealised loss/(gain) on derivative contracts		112.6	36.6	[1]	(20.7)	[1]
Fair value (gain)/loss on Maverix warrants		(4.2)	(3.8)	[1]	0.4	[1]
Profit on disposal of Maverix		(14.6)	(4)	[1]	0	[1]
Silicosis settlement costs		(1.6)	(4.5)	[1]	30.2	[1]
Share-based payments		20.5	37.5	[1]	26.8	[1]
Long-term incentive plan expense		9.1	1.1	[1]	5	[1]
Payment of long-term incentive plan		0	(17.8)	[1]	(11.5)	[1]
Borrowing costs capitalised		(43.4)	(17.5)	[1]	(22.9)	[1]
Share of results of equity-accounted investees, net of taxation		(4.5)	0.2	[1]	(0.3)	[1]
Other		5.9	(3)	[1]	(14.9)	[1]
Total cash generated by operations		$ 1,302.8	$ 998	[1]	$ 1,286.5	[1]

[1]	Refer note 42.

Change in Working Capital - Sum

Change in Working Capital - Summary of Change in Working Capital (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Change In Working Capital [abstract]
Inventories	[1]	$ (56.2)	$ 0.8	$ (55.1)
Trade and other receivables	[1]	(5.6)	(0.5)	(19.6)
Trade and other payables	[1]	37.2	(32.2)	(15.2)
Total change in working capital	[1]	$ (24.6)	$ (31.9)	$ (89.9)

[1]	Refer note 42.

Royalties Paid - Summary of Roy

Royalties Paid - Summary of Royalties Paid (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Royalty Payment [abstract]
Amount owing at beginning of the year	[1]	$ (12.5)	$ (16.3)	$ (19.8)
Royalties	[1]	(73.7)	(62.5)	(62)
Amount owing at end of the year	[1]	13.9	12.5	16.3
Translation	[1]		0.8	(0.5)
Total royalties paid	[1]	$ (72.3)	$ (65.5)	$ (66)

[1]	Refer note 42.

Taxation Paid - Detailed Inform

Taxation Paid - Detailed Information About Income Tax (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income taxes paid (refund) [abstract]
Amount owing at beginning of the year	[1]	$ (0.9)	$ (46.7)	$ (87)
SA and foreign current taxation	[1]	(190.6)	(145.7)	(204.7)
SA and foreign current taxation recognised in OCI	[1]	(14.7)
Amount owing at end of the year	[1]	24.8	0.9	46.7
Translation	[1]	(0.4)	0.8	(4.4)
Total taxation paid	[1]	$ (181.8)	$ (190.7)	$ (249.4)

[1]	Refer note 42.

Retirement Benefits - Additiona

Retirement Benefits - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Defined Contribution Plan [abstract]
Retirement benefit costs	[1]	$ 27	$ 32.8	$ 33.7

[1]	Refer note 42.

Lease Liabilities - Summary of

Lease Liabilities - Summary of Finance Lease Liabilities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017	Jan. 01, 2019	Jan. 01, 2018
Disclosure of finance lease liabilities [line items]
Balance at the beginning of the year	$ 111.5
Leases recognised on adoption of IFRS 16 (refer note 41)					$ 209.6
Interest expense	(18.6)	$ (0.2)		$ 0
Balance at the end of the year	447.4	111.5
Non-current portion of lease liability	287.7	80.1	[1]			$ 0
Future minimum lease payments	447.4	111.5
Interest	114.5	22.9
Present value of minimum lease payments	332.9	88.6
Gruyere power purchase agreement [member]
Disclosure of finance lease liabilities [line items]
Balance at the beginning of the year	88.6
Leases recognised on adoption of IFRS 16 (refer note 41)	209.6
Additions1	67.3	96.2
Remeasurements of leases during the year2	5.9
Interest expense	18.6	0.2
Repayments	(56.9)	(2.5)
Translation adjustment	(0.2)	(5.3)
Balance at the end of the year	332.9	88.6
Current portion of lease liability	(45.2)	(8.5)
Non-current portion of lease liability	287.7	80.1
Within one year [member]
Disclosure of finance lease liabilities [line items]
Balance at the beginning of the year	11.6
Balance at the end of the year	63.9	11.6
Within one year [member] \| Gruyere power purchase agreement [member]
Disclosure of finance lease liabilities [line items]
Future minimum lease payments	63.9	11.6
Interest	18.7	3.1
Present value of minimum lease payments	45.2	8.5
Later than one years and not later than five years [member] \| Gruyere power purchase agreement [member]
Disclosure of finance lease liabilities [line items]
Future minimum lease payments	178.2	41.5
Interest	55.2	11.5
Present value of minimum lease payments	123	30
Later than five years [member]
Disclosure of finance lease liabilities [line items]
Balance at the beginning of the year	58.4
Balance at the end of the year	205.3	58.4
Later than five years [member] \| Gruyere power purchase agreement [member]
Disclosure of finance lease liabilities [line items]
Future minimum lease payments	205.3	58.4
Interest	40.6	8.3
Present value of minimum lease payments	$ 164.7	$ 50.1

[1]	Refer note 42.

Commitments - Schedule of Commi

Commitments - Schedule of Commitments (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Capital expenditure
Contracted for Operating leases	$ 47.9	$ 50
Within one year [member]
Capital expenditure
Operating lease commitment	0	76.7
Later than one and not later than five years [member]
Capital expenditure
Operating lease commitment	0	256.5
Later than five years [member]
Capital expenditure
Operating lease commitment	$ 0	$ 324.2

Commitments - Schedule of Lease

Commitments - Schedule of Lease Contracts (Detail) $ in Millions	Dec. 31, 2019USD ($)
Disclosure Of Lease Contracts [Line Items]
Undiscounted lease liabilities	$ 447.4
Non-lease elements	472.1
Fully variable lease payments	1,943.3
Lease Contracts	2,853.8
Within one year [member]
Disclosure Of Lease Contracts [Line Items]
Undiscounted lease liabilities	63.9
Non-lease elements	98.7
Fully variable lease payments	502.3
Lease Contracts	664.9
Later than one and not later than five years [member]
Disclosure Of Lease Contracts [Line Items]
Undiscounted lease liabilities	178.2
Non-lease elements	290.1
Fully variable lease payments	1,410.3
Lease Contracts	1,878.6
Later than five years [member]
Disclosure Of Lease Contracts [Line Items]
Undiscounted lease liabilities	205.3
Non-lease elements	83.3
Fully variable lease payments	21.7
Lease Contracts	$ 310.3

Commitments - Additional Inform

Commitments - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Information about Guarantees [Line Items]
Leases Use in Assets Not Yet Commenced	$ 33.4
South African Peruvian and Ghanaian Operations [member]
Disclosure of Information about Guarantees [Line Items]
Environmental obligation guarantees amount	$ 154.3	$ 207.6	$ 112.1

Contingent Liabilities - Additi

Contingent Liabilities - Additional Information (Detail) R in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2019USD ($)	Dec. 31, 2019ZAR (R)	Dec. 31, 2018USD ($)		Dec. 31, 2018ZAR (R)	May 30, 2018USD ($)	May 30, 2018ZAR (R)	Jan. 01, 2018USD ($)
Disclosure of contingent liabilities [line items]
Provisions \| $		$ 391.1		$ 319.5	[1]				$ 321.3
GFI Joint Venture Holdings (Proprietary) Limited [Member] \| South African Revenue Service [Member]
Disclosure of contingent liabilities [line items]
Additional capital allowance recognised							$ 185.1	R 2,708
Tax effect of additional capital allowance recognised							$ 53.7	R 785.3
Silicosis [Member]
Disclosure of contingent liabilities [line items]
Provisions		21.2	R 297.1	$ 25.1		R 367.8
Nominal amount of provision		$ 29.2	R 408.4
Alleged thefts [Member] \| Randgold and Exploration Summons [Member]
Disclosure of contingent liabilities [line items]
Amount of summons claims computed pursuant to allegedly received						43,700
South Deep Mine [member] \| Gold Fields Operations Limited [Member]
Disclosure of contingent liabilities [line items]
Percentage of ownership interest in joint venture	50.00%
South Deep Mine [member] \| GFI Joint Venture Holdings (Proprietary) Limited [Member]
Disclosure of contingent liabilities [line items]
Percentage of ownership interest in joint venture	50.00%
Based On Value Of Shares [Member] \| Alleged thefts [Member] \| Randgold and Exploration Summons [Member]
Disclosure of contingent liabilities [line items]
Amount of summons claims computed pursuant to allegedly received						R 26,900

[1]	Refer note 42.

Events after the Reporting Da_2

Events after the Reporting Date - Additional Information (Detail) $ / shares in Units, $ in Millions, ₨ in Billions

Mar. 23, 2020USD ($)

Mar. 16, 2020USD ($)shares

Feb. 12, 2020USD ($)shares

Feb. 12, 2020INR (₨)shares

Feb. 12, 2020R / shares

Apr. 30, 2020USD ($)

Dec. 31, 2018USD ($)shares

Oct. 31, 2018USD ($)

Sep. 30, 2018USD ($)

Jun. 30, 2018USD ($)

May 31, 2018USD ($)

Dec. 31, 2021$ / ozoz

Dec. 31, 2022CLP ($)

Jul. 01, 2020USD ($)

Feb. 28, 2020USD ($)

Dec. 31, 2019USD ($)shares

Dec. 31, 2017USD ($)

[1]

May 24, 2017$ / shares

Disclosure of non-adjusting events after reporting period [line items]

Par value | $ / shares

$ 0.5

Face amount of borrowings

$ 1,290

$ 1,200

Average strike rate

836.45

Cash

219.7

515

Undrawn borrowing facilities committed

$ 1,097.7

[1]

$ 1,727.6

$ 1,305.1

Fair value hedges [member] | Interest rate caps [member]

Disclosure of non-adjusting events after reporting period [line items]

Strike price of gold | $ / oz

2,200

Currency risk [member]

Disclosure of non-adjusting events after reporting period [line items]

Average strike rate

71.5

70.75

71.82

73.3

75.17

Equity investments [member] | Cardinal Resources Limited [member]

Disclosure of non-adjusting events after reporting period [line items]

Asanko Gold Inc. | shares

42,818,182

81,038,233

Forward contract [member] | Fair value hedges [member] | Interest rate caps [member]

Disclosure of non-adjusting events after reporting period [line items]

Strike price of gold | $ / oz

2,100

Forward contract [member] | Currency risk [member]

Disclosure of non-adjusting events after reporting period [line items]

Face amount of borrowings

$ 50

$ 60

$ 100

$ 60

$ 96

Dividends declared [member]

Disclosure of non-adjusting events after reporting period [line items]

Final dividend declared per share | R / shares

R 1

Major ordinary share transactions [member]

Disclosure of non-adjusting events after reporting period [line items]

Proceeds from issuance of shares

$ 249

₨ 3.7

Major ordinary share transactions [member] | Ordinary Shares [member]

Disclosure of non-adjusting events after reporting period [line items]

Shares issued during the period | shares

41,431,635

Par value | R / shares

R 90.20

Environmental Impact Assessment [Member]

Disclosure of non-adjusting events after reporting period [line items]

Capital expenditure

$ 860

Expected term of capital expenditure

33 months

Disposal of equity method [member] | Equity investments [member] | Cardinal Resources Limited [member]

Disclosure of non-adjusting events after reporting period [line items]

Asanko Gold Inc. | shares

81,038,233

The sale of the shares raised

$ 37.1

Entering into average rate forwards [member] | Forward contract [member] | Currency risk [member]

Disclosure of non-adjusting events after reporting period [line items]

Face amount of borrowings

$ 544.5

Entering into asian puts [member] | Fair value hedges [member]

Disclosure of non-adjusting events after reporting period [line items]

Volume of gold hedged | oz

100,000

Entering into asian puts [member] | Forward contract [member] | Fair value hedges [member]

Disclosure of non-adjusting events after reporting period [line items]

Volume of gold hedged | oz

200,000

Advances payment to contractor [member] | Mining contractor [member]

Disclosure of non-adjusting events after reporting period [line items]

Advance to suppliers

$ 68

Advances paid

$ 62

Non Adjusting Event [member]

Disclosure of non-adjusting events after reporting period [line items]

Cash

600

Undrawn borrowing facilities committed

$ 1,500

[1]

Refer note 42.

Financial Instruments - Summary

Financial Instruments - Summary of Carrying Amounts and Fair Values of Financial Assets and Financial Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018		Jan. 01, 2018	Dec. 31, 2017		Dec. 31, 2016	[1]
Disclosure of detailed information about financial instruments [line items]
- Borrowings	$ 1,845.8	$ 1,906.8	[1]		$ 1,782.4	[1]
- Trade and other payables	385.3	307.6
- Finance lease liabilities	447.4	111.5
- Environmental trust funds	69.5	60.8	[1]	$ 55.5	55.5
- Trade and other receivables	137.1	138.6	[1]	171.8	171.8
- Investments	155.1	235.3
- Cash and cash equivalents	515	219.7	[1]	$ 393.8	$ 393.8	[1]	$ 471
- Warrants	11.7	9.3
Fair Value [member] \| Financial liabilities at fair value [member]
Disclosure of detailed information about financial instruments [line items]
- Copper derivative contracts	127.6	22.6
Total	127.6	22.6
Fair Value [member] \| Financial liabilities not measured at fair value [member]
Disclosure of detailed information about financial instruments [line items]
- Borrowings	1,952.4	1,897
- Trade and other payables	385.3	307.6
- Finance lease liabilities	332.9	88.6
Total	2,670.6	2,293.2
Fair Value [member] \| Financial assets at fair value [member]
Disclosure of detailed information about financial instruments [line items]
- Environmental trust funds	7.2	6.5
- Trade receivables from provisional copper sales	22.8	15.3
- Investments	47.9	93.1
Asanko redeemable preference shares	95.5	132.9
- Warrants	11.7	9.3
- Gold and oil derivative contracts	1.1	8.3
Total	186.2	265.4
Fair Value [member] \| Financial assets not measured at fair value [member]
Disclosure of detailed information about financial instruments [line items]
- Environmental trust funds	62.3	54.3
- Trade receivables from provisional copper sales		49.6
- Trade and other receivables	51.4
- Cash and cash equivalents	515	219.7
Total	628.7	323.6
Carrying amount [member] \| Financial liabilities at fair value [member]
Disclosure of detailed information about financial instruments [line items]
- Copper derivative contracts	127.6	22.6
Total	127.6	22.6
Carrying amount [member] \| Financial liabilities at fair value [member] \| Fair value through profit or loss [member]
Disclosure of detailed information about financial instruments [line items]
- Copper derivative contracts	127.6	22.6
Total	127.6	22.6
Carrying amount [member] \| Financial liabilities not measured at fair value [member]
Disclosure of detailed information about financial instruments [line items]
- Borrowings	1,845.8	1,906.8
- Trade and other payables	385.3	307.6
- Finance lease liabilities	332.9	88.6
Total	2,564	2,303
Carrying amount [member] \| Financial liabilities not measured at fair value [member] \| Other financial liabilities measured at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
- Borrowings	1,845.8
- Trade and other payables	385.3
- Finance lease liabilities	332.9
Total	2,564
Carrying amount [member] \| Financial assets at fair value [member]
Disclosure of detailed information about financial instruments [line items]
- Environmental trust funds	7.2	6.5
- Trade receivables from provisional copper sales	22.8	15.3
- Investments	47.9	93.1
Asanko redeemable preference shares	95.5	132.9
- Warrants	11.7	9.3
- Gold and oil derivative contracts	1.1	8.3
Total	186.2	265.4
Carrying amount [member] \| Financial assets at fair value [member] \| Fair value through profit or loss [member]
Disclosure of detailed information about financial instruments [line items]
- Environmental trust funds	7.2	6.5
- Trade receivables from provisional copper sales	22.8	15.3
- Warrants	11.7	9.3
- Gold and oil derivative contracts	1.1	8.3
Total	42.8	39.4
Carrying amount [member] \| Financial assets at fair value [member] \| FVOCI [member]
Disclosure of detailed information about financial instruments [line items]
- Investments	47.9	93.1
Asanko redeemable preference shares	95.5	132.9
Total	143.4	226
Carrying amount [member] \| Financial assets not measured at fair value [member]
Disclosure of detailed information about financial instruments [line items]
- Environmental trust funds	62.3	54.3
- Trade receivables from provisional copper sales		49.6
- Trade and other receivables	51.4
- Cash and cash equivalents	515	219.7
Total	628.7	323.6
Carrying amount [member] \| Financial assets not measured at fair value [member] \| Amortised cost [member]
Disclosure of detailed information about financial instruments [line items]
- Environmental trust funds	62.3	54.3
- Trade receivables from provisional copper sales		49.6
- Trade and other receivables	51.4
- Cash and cash equivalents	515	219.7
Total	$ 628.7	$ 323.6

[1]	Refer note 42.

Financial Instruments - Summa_2

Financial Instruments - Summary of Assets and Liabilities Measured at Fair Value by Level within Fair Value Hierarchy (Detail) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018		Jan. 01, 2018	Dec. 31, 2017
Disclosure of fair value measurement of assets and liability [line items]
Environmental trust funds		$ 69.5	$ 60.8	[1]	$ 55.5	$ 55.5
Trade receivables from provisional copper sales		23.6	15.3	[1]
Redeemable preference shares		95.5	132.9	[1]
Derivative financial assets		11.7	9.3
Borrowings		1,845.8	1,906.8	[1]		$ 1,782.4	[1]
Environmental trust funds [member]
Disclosure of fair value measurement of assets and liability [line items]
Environmental trust funds		7.2	6.5	[1]
Financial assets at amortised cost, class [member]
Disclosure of fair value measurement of assets and liability [line items]
Environmental trust funds		62.3	54.3	[1]
Borrowings		1,952.4	1,897	[1]
Investments - listed [member]
Disclosure of fair value measurement of assets and liability [line items]
Investments		47.9	93	[1]
Investments - unlisted [member]
Disclosure of fair value measurement of assets and liability [line items]
Investments	[1]		0.1
Trade receivables from provisional copper concentrate sales [member]
Disclosure of fair value measurement of assets and liability [line items]
Trade receivables from provisional copper sales		22.8	15.3	[1]
Warrants [member]
Disclosure of fair value measurement of assets and liability [line items]
Derivative financial assets		11.7	9.3	[1]
Oil derivative contracts [member]
Disclosure of fair value measurement of assets and liability [line items]
Derivative financial assets		1.1	4.7	[1]
Copper derivative contracts [member]
Disclosure of fair value measurement of assets and liability [line items]
Derivative financial assets	[1]		1.2
Gold derivative contracts [member]
Disclosure of fair value measurement of assets and liability [line items]
Derivative financial assets	[1]		2.4
Derivative financial liabilities		127.3	13.9	[1]
Foreign exchange derivatives [member]
Disclosure of fair value measurement of assets and liability [line items]
Derivative financial liabilities		0.3	8.7	[1]
Level 1 [member] \| Financial assets at amortised cost, class [member]
Disclosure of fair value measurement of assets and liability [line items]
Borrowings		1,700.4	839.6	[1]
Level 1 [member] \| Investments - listed [member]
Disclosure of fair value measurement of assets and liability [line items]
Investments		47.9	93	[1]
Level 2 [member] \| Environmental trust funds [member]
Disclosure of fair value measurement of assets and liability [line items]
Environmental trust funds		7.2	6.5	[1]
Level 2 [member] \| Financial assets at amortised cost, class [member]
Disclosure of fair value measurement of assets and liability [line items]
Environmental trust funds		62.3	54.3	[1]
Level 2 [member] \| Trade receivables from provisional copper concentrate sales [member]
Disclosure of fair value measurement of assets and liability [line items]
Trade receivables from provisional copper sales		22.8	15.3	[1]
Level 2 [member] \| Warrants [member]
Disclosure of fair value measurement of assets and liability [line items]
Derivative financial assets		11.7	9.3	[1]
Level 2 [member] \| Oil derivative contracts [member]
Disclosure of fair value measurement of assets and liability [line items]
Derivative financial assets		1.1	4.7	[1]
Level 2 [member] \| Copper derivative contracts [member]
Disclosure of fair value measurement of assets and liability [line items]
Derivative financial assets	[1]		1.2
Level 2 [member] \| Gold derivative contracts [member]
Disclosure of fair value measurement of assets and liability [line items]
Derivative financial assets	[1]		2.4
Derivative financial liabilities		127.3	13.9	[1]
Level 2 [member] \| Foreign exchange derivatives [member]
Disclosure of fair value measurement of assets and liability [line items]
Derivative financial liabilities		0.3	8.7	[1]
Level 3 [Member]
Disclosure of fair value measurement of assets and liability [line items]
Redeemable preference shares		95.5	132.9	[1]
Level 3 [Member] \| Financial assets at amortised cost, class [member]
Disclosure of fair value measurement of assets and liability [line items]
Borrowings		$ 252	1,057.4	[1]
Level 3 [Member] \| Investments - unlisted [member]
Disclosure of fair value measurement of assets and liability [line items]
Investments	[1]		$ 0.1

[1]	Refer note 42.

Risk Management Activities - Cr

Risk Management Activities - Credit Risk - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019
PERU [Member]
Disclosure Of Financial Risk Management [line items]
Percentage Of Cash Receipts On Revenue Recognition	90.00%
Percentage Of Cash Receipts At The End Of Quotation Period	10.00%
Counter party exposure [member]
Disclosure Of Financial Risk Management [line items]
Percentage of maximum investment in financial institutions' equity	2.50%

Risk Management Activities - Sc

Risk Management Activities - Schedule of Combined Maximum Credit Risk Exposure (Detail) - Credit risk [member] - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Environmental trust funds [member]
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk		$ 69.5	$ 60.8
Trade and other receivable [member]
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk	[1]	74.2	64.9	[2]
Cash and cash equivalent [member]
Disclosure of credit risk exposure [line items]
Maximum exposure to credit risk		$ 515	$ 219.7

[1]	Trade and other receivables above exclude VAT, import duties, prepayments, payroll receivables, derivative contracts and diesel rebates amounting to US$62.9 million (2018: US$73.7 million).
[2]	Refer note 42.

Risk Management Activities - _2

Risk Management Activities - Schedule of Combined Maximum Credit Risk Exposure (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Trade and other receivable [member]
Disclosure of credit risk exposure [line items]
VAT, prepayments and diesel rebates	$ 62.9	$ 73.7

Risk Management Activities - Su

Risk Management Activities - Summary of the Exposure to Credit Risk for Trade Receivables by Geographic Region (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	[1]
Disclosure Of Credit Risk Exposure For Trade Receivables [line items]
Total trade receivables	$ 23.6	$ 15.3
Credit risk [member]
Disclosure Of Credit Risk Exposure For Trade Receivables [line items]
Total trade receivables	23.6	15.3
Credit risk [member] \| Ghana [member]
Disclosure Of Credit Risk Exposure For Trade Receivables [line items]
Total trade receivables	0.8
Credit risk [member] \| Peru [member]
Disclosure Of Credit Risk Exposure For Trade Receivables [line items]
Total trade receivables	$ 22.8	$ 15.3

[1]	Refer note 42.

Risk Management Activities - _3

Risk Management Activities - Summary of the Exposure to Credit Risk for Trade Receivables by Geographic Region (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018		Jan. 01, 2018	Dec. 31, 2017		Dec. 31, 2016	[1]
Disclosure Of Credit Risk Exposure For Trade Receivables [line items]
Cash and cash equivalents	$ 515	$ 219.7	[1]	$ 393.8	$ 393.8	[1]	$ 471
Environmental trust funds	69.5	60.8	[1]	$ 55.5	$ 55.5
Banks and financial institutions [member]
Disclosure Of Credit Risk Exposure For Trade Receivables [line items]
Environmental trust funds	$ 69.5	$ 60.8

[1]	Refer note 42.

Risk Management Activities - _4

Risk Management Activities - Schedule of Contractually Due Undiscounted Cash Flows Resulting from Maturities of All Financial Liabilities, Including Interest Payments (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Trade and other payables	$ 385.3	$ 307.6
Gold and foreign exchange derivative contracts	127.6	22.6
Environmental rehabilitation costs5	436.3	399.9
Finance lease liabilities	447.4	111.5
South Deep dividend	8.5	9.6
Total	3,691.3	2,930
US dollar borrowings [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Capital	1,685.9	1,452.9
Interest	424.1	122.5
Australian Dollar borrowings [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Capital	168.5	316.5
Interest	7.7	33.2
Rand borrowing [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Capital		140.4
Interest		13.3
Within one year [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Trade and other payables	385.3	307.6
Gold and foreign exchange derivative contracts	127.6	22.6
Environmental rehabilitation costs5	11.9	13
Finance lease liabilities	63.9	11.6
South Deep dividend	1.4	1.4
Total	1,362.5	543.9
Within one year [member] \| US dollar borrowings [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Capital	685.9
Interest	81	69.3
Within one year [member] \| Australian Dollar borrowings [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Interest	5.5	13.8
Within one year [member] \| Rand borrowing [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Capital		92.5
Interest		12.1
Later than one and not later than five years [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Environmental rehabilitation costs5	28.4	33.7
Finance lease liabilities	178.2	41.5
South Deep dividend	3.8	4.1
Total	1,090.2	1,970.4
Later than one and not later than five years [member] \| US dollar borrowings [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Capital	500	1,452.9
Interest	209.1	53.2
Later than one and not later than five years [member] \| Australian Dollar borrowings [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Capital	168.5	316.5
Interest	2.2	19.4
Later than one and not later than five years [member] \| Rand borrowing [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Capital		47.9
Interest		1.2
Later than five years [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Environmental rehabilitation costs5	396	353.2
Finance lease liabilities	205.3	58.4
South Deep dividend	3.3	4.1
Total	1,238.6	$ 415.7
Later than five years [member] \| US dollar borrowings [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Capital	500
Interest	$ 134

Risk Management Activities - _5

Risk Management Activities - Schedule of Contractually Due Undiscounted Cash Flows Resulting from Maturities of All Financial Liabilities, Including Interest Payments (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)R / $	Dec. 31, 2018USD ($)R / $		Jan. 01, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Funding from environmental trust funds	$ 69.5	$ 60.8	[1]	$ 55.5	$ 55.5
Notional amount	1,200	1,290
South Africa and Ghana [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Funding from environmental trust funds	69.5	$ 60.8
US $1 Billion Notes [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Notional amount	1,000
US$500 million 5-year notes issue (the 5-year notes) [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Notional amount	500
US$500 million 10-year notes issue (the 10-year notes) [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Notional amount	$ 500
Closing foreign exchange rate [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Foreign exchange rate \| R / $	14	14.63
Liquidity Risk [Member] \| US dollar borrowings [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Borrowings interest rate description	Spot LIBOR (one month fix) rate adjusted by specific facility agreement 1.7625%	Spot LIBOR (one month fix) rate adjusted by specific facility agreement 2.50625%
Borrowings adjustment to interest rate	1.7625%	2.50625%
Liquidity Risk [Member] \| Australian Dollar borrowings [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Borrowings interest rate description	Spot Bank Bill Swap Bid Rate (BBSY) (one month fix) rate adjusted by specific facility agreement 0.92%	Spot Bank Bill Swap Bid Rate (BBSY) (one month fix) rate adjusted by specific facility agreement 2.02%
Borrowings adjustment to interest rate	0.92%	2.02%
Liquidity Risk [Member] \| ZAR Borrowings [Member] \| Uncommitted credit facility [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Borrowings interest rate description		Spot JIBAR (one month fix) rate adjusted by specific facility agreement 6.942%
Borrowings adjustment to interest rate		6.942%
Average bank overnight borrowing rate on uncommitted credit facilities		8.10%

[1]	Refer note 42.

Risk Management Activities - _6

Risk Management Activities - Summary of gain loss from derivative financial instruments (Detail) - Market risk [member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gain (loss) on hedge ineffectiveness recognised in profit or loss	$ (238)	$ 21	$ 34.4
South Deep gold hedge [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gain (loss) on hedge ineffectiveness recognised in profit or loss	(25.8)	(3.2)	10.9
Ghana gold hedge [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gain (loss) on hedge ineffectiveness recognised in profit or loss	(37.7)	22
Ghana oil hedge [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gain (loss) on hedge ineffectiveness recognised in profit or loss	2.5	1.5	8.8
Peru copper hedge [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gain (loss) on hedge ineffectiveness recognised in profit or loss		9.2	(5.7)
Australia gold hedge [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gain (loss) on hedge ineffectiveness recognised in profit or loss	(178.8)	(4.6)	15.3
Australia oil hedge [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gain (loss) on hedge ineffectiveness recognised in profit or loss	2.3	1.4	$ 5.1
Australia foreign currency hedge [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gain (loss) on hedge ineffectiveness recognised in profit or loss	(7.2)	(9.1)
Maverix warrants – gain on fair value [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gain (loss) on hedge ineffectiveness recognised in profit or loss	4.2	$ 3.8
Gain on fair value on disposal of Maverix [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gain (loss) on hedge ineffectiveness recognised in profit or loss	$ 2.5

Risk Management Activities - Ma

Risk Management Activities - Market Risk - Foreign Currency - Additional Information (Detail) $ in Millions	1 Months Ended					12 Months Ended				30 Months Ended
	Dec. 31, 2018USD ($)	Oct. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Jun. 30, 2018USD ($)	May 31, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2019AUD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2018AUD ($)	Dec. 31, 2022CLP ($)	Dec. 31, 2019AUD ($)	Dec. 31, 2018AUD ($)
Disclosure Of Financial Risk Management [line items]
Forwards notional value for the period January 2019 to December 2019	$ 1,290,000,000					$ 1,200,000,000		$ 1,290,000,000
Average strike rate										836.45
Currency risk [member]
Disclosure Of Financial Risk Management [line items]
Exposure to risk relating to financial instruments						0
Average strike rate	71.5	70.75	71.82	73.3	75.17
Currency risk [member] \| Forward contract [member]
Disclosure Of Financial Risk Management [line items]
Forwards notional value for the period January 2019 to December 2019	$ 50,000,000	$ 60,000,000	$ 100,000,000	$ 60,000,000	$ 96,000,000			50,000,000
Mark to Market value	$ 8,700,000					300,000		8,700,000			$ 0.4	$ 12.3
Gains (losses) on ineffectiveness of hedges of net investments in foreign operations recognised in profit or loss						$ (15,500,000)	$ (22.3)	$ 0	$ 0

Risk Management Activities - _7

Risk Management Activities - Market Risk - Commodity Price - Gold and Copper - Additional Information (Detail) R in Millions, $ in Millions, $ in Millions

Jun. 30, 2019$ / ozoz

Jun. 30, 2019oz$ / oz$ / ozZAR-kg

Jan. 31, 2019ZAR-kgOunce_of_Gold

Oct. 31, 2018ZAR-kgOunce_of_Gold

Apr. 30, 2018$ / ozoz

Mar. 31, 2018$ / oz$ / ozoz

Feb. 28, 2018$ / ozoz

Jan. 31, 2018$ / ozoz

Nov. 30, 2017$ / TonneT

Dec. 31, 2021$ / oz

Dec. 31, 2019USD ($)$ / ozoz

Dec. 31, 2019AUD ($)$ / ozoz

Dec. 31, 2019ZAR (R)$ / ozoz

Dec. 31, 2018USD ($)$ / ozoz

Dec. 31, 2018AUD ($)$ / ozoz

Dec. 31, 2018ZAR (R)$ / ozoz

Dec. 31, 2019AUD ($)

Dec. 31, 2019ZAR (R)

Dec. 31, 2018AUD ($)

Dec. 31, 2018ZAR (R)

Cash Settled Average Rate Forwards [Member]

Disclosure Of Financial Risk Management [line items]

Number of ounces committed under contract | Ounce_of_Gold

112,613

Fair value hedges [member] | Interest rate caps [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | $ / oz

2,200

Commodity price risk [member] | Fair value hedges [member]

Disclosure Of Financial Risk Management [line items]

Volume Of Gold Hedged | oz

173,000

Commodity price risk [member] | Fair value hedges [member] | Floor rate [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | $ / oz

1,720

Commodity price risk [member] | Fair value hedges [member] | Interest rate caps [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | $ / oz

1,789

Commodity price risk [member] | Fair value hedges [member] | Peru [member]

Disclosure Of Financial Risk Management [line items]

Total realized gain | $

$ 1.2

$ 4.8

Marked-to-market value of the hedge | $

1.2

Number of tonnes committed under contract | T

29,400

Commodity price risk [member] | Fair value hedges [member] | Peru [member] | Floor rate [member]

Disclosure Of Financial Risk Management [line items]

Strike price of copper | $ / Tonne

6,600

Commodity price risk [member] | Fair value hedges [member] | Peru [member] | Interest rate caps [member]

Disclosure Of Financial Risk Management [line items]

Strike price of copper | $ / Tonne

7,431

Commodity price risk [member] | Fair value hedges [member] | Ghana [member]

Disclosure Of Financial Risk Management [line items]

Volume Of Gold Hedged | oz

100,000

275,000

488,900

Total realized gain | $

2.3

19.6

Marked-to-market value of the hedge | $

(36.4)

$ 2.4

Commodity price risk [member] | Fair value hedges [member] | Ghana [member] | Zero Cost Collar [Member]

Disclosure Of Financial Risk Management [line items]

Number of ounces committed under contract | oz

175,000

Commodity price risk [member] | Fair value hedges [member] | Ghana [member] | Average Rate Forwards [Member]

Disclosure Of Financial Risk Management [line items]

Number of ounces committed under contract | oz

100,000

Commodity price risk [member] | Fair value hedges [member] | Ghana [member] | Floor rate [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | $ / oz

1,400

1,364

1,300

Commodity price risk [member] | Fair value hedges [member] | Ghana [member] | Interest rate caps [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | $ / oz

1,557

1,449

1,418

Commodity price risk [member] | Fair value hedges [member] | Ghana [member] | Forward Rates [Member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | $ / oz

1,382

Commodity price risk [member] | Fair value hedges [member] | Asia [Member]

Disclosure Of Financial Risk Management [line items]

Volume Of Gold Hedged | oz

221,000

Strike price of gold | $ / oz

1,714

Commodity price risk [member] | Fair value hedges [member] | Australia [member]

Disclosure Of Financial Risk Management [line items]

Volume Of Gold Hedged | oz

480,000

452,800

283,000

Strike price of gold | $ / oz

1,751

Total realized gain

(113.4)

$ (163)

$ 8.4

$ 11.2

Marked-to-market value of the hedge

$ (78.3)

12.3

$ (111.5)

$ 17.6

Commodity price risk [member] | Fair value hedges [member] | Australia [member] | Zero Cost Collar [Member]

Disclosure Of Financial Risk Management [line items]

Number of ounces committed under contract | oz

(270,000)

Commodity price risk [member] | Fair value hedges [member] | Australia [member] | Average Rate Forwards [Member]

Disclosure Of Financial Risk Management [line items]

Number of ounces committed under contract | oz

(210,000)

Commodity price risk [member] | Fair value hedges [member] | Australia [member] | Floor rate [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | $ / oz

1,933

1,703

Commodity price risk [member] | Fair value hedges [member] | Australia [member] | Interest rate caps [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold

2,014

1,767

Commodity price risk [member] | Fair value hedges [member] | Australia [member] | Forward Rates [Member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | $ / oz

1,957

Abnormally large changes in asset prices or foreign exchange rates [member] | Commodity price risk [member] | Fair value hedges [member]

Disclosure Of Financial Risk Management [line items]

Volume Of Gold Hedged | oz

456,000

Abnormally large changes in asset prices or foreign exchange rates [member] | Commodity price risk [member] | Fair value hedges [member] | Floor rate [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | $ / oz

1,800

Abnormally large changes in asset prices or foreign exchange rates [member] | Commodity price risk [member] | Fair value hedges [member] | Interest rate caps [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | $ / oz

1,869

South Africa [member] | Commodity price risk [member] | South deep [member]

Disclosure Of Financial Risk Management [line items]

Total realized gain

$ (15.2)

R (219.8)

8.9

R 117.2

Marked-to-market value of the hedge

$ (12.6)

$ 1.6

R (176)

R 23.3

South Africa [member] | Commodity price risk [member] | Fair value hedges [member] | Cash Settled Average Rate Forwards [Member]

Disclosure Of Financial Risk Management [line items]

Volume Of Gold Hedged | oz

200,000

South Africa [member] | Commodity price risk [member] | Fair value hedges [member] | South deep [member] | Zero Cost Collar [Member]

Disclosure Of Financial Risk Management [line items]

Number of ounces committed under contract | oz

100,000

South Africa [member] | Commodity price risk [member] | Fair value hedges [member] | South deep [member] | Average Rate Forwards [Member]

Disclosure Of Financial Risk Management [line items]

Number of ounces committed under contract | oz

100,000

South Africa [member] | Commodity price risk [member] | Fair value hedges [member] | South deep [member] | Cash Settled Average Rate Forwards [Member]

Disclosure Of Financial Risk Management [line items]

Number of ounces committed under contract | Ounce_of_Gold

112,613

Strike price of gold | ZAR-kg

617,000

South Africa [member] | Commodity price risk [member] | Fair value hedges [member] | Floor rate [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | ZAR-kg

660,000

South Africa [member] | Commodity price risk [member] | Fair value hedges [member] | Interest rate caps [member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | ZAR-kg

727,000

South Africa [member] | Commodity price risk [member] | Fair value hedges [member] | Forward Rates [Member]

Disclosure Of Financial Risk Management [line items]

Strike price of gold | ZAR-kg

681,400

Risk Management Activities - _8

Risk Management Activities - Market Risk - Commodity Price - Oil - Additional Information (Detail) - Fair value hedges [member] l in Millions, $ in Millions, $ in Millions	1 Months Ended			12 Months Ended
	Jun. 30, 2019ppml$ / bbl$ / Tonne	Jun. 30, 2017ppml$ / bbl$ / Barrel$ / Tonne	May 31, 2017ppml$ / bbl$ / Barrel$ / Tonne	Dec. 31, 2019USD ($)	Dec. 31, 2019AUD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2018AUD ($)	Dec. 31, 2019AUD ($)	Dec. 31, 2018AUD ($)
Australia [member] \| Cash settled swap transaction contracts [member]
Disclosure Of Financial Risk Management [line items]
Marked-to-market value of the hedge				$ 1		$ 1.7		$ 1.4	$ 2.5
Total realized gain				3.1	$ 4.5	4.6	$ 6.1
Australia [member] \| Commodity price risk [member]
Disclosure Of Financial Risk Management [line items]
Marked-to-market value of the hedge				(78.3)		12.3		$ (111.5)	$ 17.6
Total realized gain				(113.4)	$ (163)	8.4	$ 11.2
Australia [member] \| Commodity price risk [member] \| Cash settled swap transaction contracts [member]
Disclosure Of Financial Risk Management [line items]
Risk hedging number \| ppm	10	10	10
Volume of diesel hedged \| l	75	77.5	77.5
Average swap price \| $ / bbl	74	61.2	61.2
Australia [member] \| Commodity price risk [member] \| Cash settled swap transaction contracts [member] \| Brent crude [member]
Disclosure Of Financial Risk Management [line items]
Benchmark price per barrel at time transaction	57.4	49.9	49.9
Ghana [member] \| Cash settled swap transaction contracts [member]
Disclosure Of Financial Risk Management [line items]
Marked-to-market value of the hedge				0.1		3
Total realized gain				5.4		7.5
Ghana [member] \| Commodity price risk [member]
Disclosure Of Financial Risk Management [line items]
Marked-to-market value of the hedge				(36.4)		2.4
Total realized gain				$ 2.3		$ 19.6
Ghana [member] \| Commodity price risk [member] \| Cash settled swap transaction contracts [member]
Disclosure Of Financial Risk Management [line items]
Volume of diesel hedged \| l	123.2	125.8	125.8
Average swap price \| $ / bbl	75.8	61.4	61.4
Average swap price \| $ / Tonne	575	457.2	457.2
Ghana [member] \| Commodity price risk [member] \| Cash settled swap transaction contracts [member] \| Brent crude [member]
Disclosure Of Financial Risk Management [line items]
Benchmark price per barrel at time transaction	59.2	49.8	49.8

Risk Management Activities - _9

Risk Management Activities - Schedule Of Effect Of A Change In Loss On Financial Instruments To Value The Gold Derivative Contracts (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Value Of Reasonably Possible Decrease In Forward Prices (US$150) [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	$ 120.8
Value Of Reasonably Possible Decrease in Forward Prices (US$100) [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	85.7
Value Of Reasonably Possible Decrease In Forward Prices (US$50) [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	45.4
Value Of Reasonably Possible Increase in Forward Prices US$50 [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	(48.7)
Value Of Reasonably Possible Increase in Forward Prices US$100 [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	(99.4)
Value Of Reasonably Possible Increase In Forward Prices US$150 [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	(151.1)
Percentage Of Reasonably Possible Decrease In Interest Rates (1.5%) [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	5.9
Percentage Of Reasonably Possible Decrease In Interest Rates (1.0%) [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	4
Percentage Of Reasonably Possible Decrease In Interest Rates (0.5%) [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	2
Percentage Of Reasonably Possible Increase in Interest Rates 0.5% [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	(2.1)
Percentage Of Reasonably Possible Increase In Interest Rates 1.0% [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	(4.2)
Percentage Of Reasonably Possible Increase In Interest Rates 1.5% [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
(Increase)/decrease in loss on financial instruments	$ (6.3)

Risk Management Activities -_10

Risk Management Activities - Summary of Effect of Change in Finance Expense on Group's Profit or Loss had LIBOR and Prime Differed as Indicated (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Decrease of One Point Five Percentage [Member] \| Sensitivity to interest rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	$ (6.6)	$ (15.9)
Decrease of One Point Five Percentage [Member] \| Sensitivity to interest rates [member] \| Change in London Interbank Offered Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(5.1)	(9.8)
Decrease of One Point Five Percentage [Member] \| Sensitivity to interest rates [member] \| Change in Bank Bill Swap Bid Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(0.7)	(4.9)
Decrease of One Point Five Percentage [Member] \| Sensitivity to interest rates [member] \| Johannesburg Interbank Average Rate and Prime Interest Rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(0.8)	(1.2)
Decrease of One Percentage [Member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Increase/(Decrease) in other comprehensive income	3.7	3.4
Decrease of One Percentage [Member] \| Sensitivity to interest rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(4.3)	(10.6)
Decrease of One Percentage [Member] \| Sensitivity to interest rates [member] \| Change in London Interbank Offered Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(3.4)	(6.5)
Decrease of One Percentage [Member] \| Sensitivity to interest rates [member] \| Change in Bank Bill Swap Bid Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(0.4)	(3.3)
Decrease of One Percentage [Member] \| Sensitivity to interest rates [member] \| Johannesburg Interbank Average Rate and Prime Interest Rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(0.5)	(0.8)
Decrease of Zero Point Five Percentage [Member] \| Sensitivity to interest rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(2.2)	(5.3)
Decrease of Zero Point Five Percentage [Member] \| Sensitivity to interest rates [member] \| Change in London Interbank Offered Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(1.7)	(3.3)
Decrease of Zero Point Five Percentage [Member] \| Sensitivity to interest rates [member] \| Change in Bank Bill Swap Bid Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(0.2)	(1.6)
Decrease of Zero Point Five Percentage [Member] \| Sensitivity to interest rates [member] \| Johannesburg Interbank Average Rate and Prime Interest Rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	(0.3)	(0.4)
Increase of Zero Point Percentage Points [Member] \| Sensitivity to interest rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	2.2	5.3
Increase of Zero Point Percentage Points [Member] \| Sensitivity to interest rates [member] \| Change in London Interbank Offered Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	1.7	3.3
Increase of Zero Point Percentage Points [Member] \| Sensitivity to interest rates [member] \| Change in Bank Bill Swap Bid Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	0.2	1.6
Increase of Zero Point Percentage Points [Member] \| Sensitivity to interest rates [member] \| Johannesburg Interbank Average Rate and Prime Interest Rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	0.3	0.4
Increase of One Percentage [Member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Increase/(Decrease) in other comprehensive income	(3.4)	(3.4)
Increase of One Percentage [Member] \| Sensitivity to interest rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	4.3	10.6
Increase of One Percentage [Member] \| Sensitivity to interest rates [member] \| Change in London Interbank Offered Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	3.4	6.5
Increase of One Percentage [Member] \| Sensitivity to interest rates [member] \| Change in Bank Bill Swap Bid Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	0.4	3.3
Increase of One Percentage [Member] \| Sensitivity to interest rates [member] \| Johannesburg Interbank Average Rate and Prime Interest Rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	0.5	0.8
Increase of One Point Five Percentage [Member] \| Sensitivity to interest rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	6.6	15.9
Increase of One Point Five Percentage [Member] \| Sensitivity to interest rates [member] \| Change in London Interbank Offered Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	5.1	9.8
Increase of One Point Five Percentage [Member] \| Sensitivity to interest rates [member] \| Change in Bank Bill Swap Bid Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	0.7	4.9
Increase of One Point Five Percentage [Member] \| Sensitivity to interest rates [member] \| Johannesburg Interbank Average Rate and Prime Interest Rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Change in finance expense	0.8	1.2
Decrease of Ten Percentage [Member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
(Decrease)/increase in other comprehensive income	(4.8)	(9.3)
Decrease Of Five Percentage [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
(Decrease)/increase in other comprehensive income	(2.4)	(4.7)
Increase Of Five Percentage [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
(Decrease)/increase in other comprehensive income	2.4	4.7
Increase of Ten Percentage [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
(Decrease)/increase in other comprehensive income	4.8	9.3
Decrease of Two Percentage [Member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Increase/(Decrease) in other comprehensive income	7.6	6.8
Increase of Two Percentage [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Increase/(Decrease) in other comprehensive income	(6.7)	(6.8)
One Year Earlier [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Increase/(Decrease) in other comprehensive income	4.9	11.1
One Year Later [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Increase/(Decrease) in other comprehensive income	$ (7.5)	$ (10.1)

Risk Management Activities -_11

Risk Management Activities - Summary of Effect of Change in Finance Expense on Group's Profit or Loss had LIBOR and Prime Differed as Indicated (Parenthetical) (Detail) - Closing foreign exchange rate [member]	12 Months Ended
	Dec. 31, 2019R / $$ / $	Dec. 31, 2018R / $$ / $
Disclosure of nature and extent of risks arising from financial instruments [line items]
Foreign exchange rate	14	14.63
Change in Bank Bill Swap Bid Rate [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Average rate \| $ / $	0.70	0.75
Johannesburg Interbank Average Rate and Prime Interest Rates [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Average rate	14.46	13.2

Risk Management Activities -_12

Risk Management Activities - Market Risk - Interest Rate - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017	[1]
Disclosure Of Financial Risk Management [line items]
Borrowings	$ 1,845.8	$ 1,906.8	[1]	$ 1,782.4
Change in London Interbank Offered Rate [member] \| Interest Bearing Borrowings [Member] \| Floating Interest Rate [member]
Disclosure Of Financial Risk Management [line items]
Borrowings exposed to interest rate fluctuations	83.5	600.5
Johannesburg Interbank Average Rate and Prime Interest Rates [member] \| Interest Bearing Borrowings [Member] \| Floating Interest Rate [member]
Disclosure Of Financial Risk Management [line items]
Borrowings exposed to interest rate fluctuations	0	47.9
Change in South African Prime Interest Rate [Member] \| Interest Bearing Borrowings [Member] \| Floating Interest Rate [member]
Disclosure Of Financial Risk Management [line items]
Borrowings exposed to interest rate fluctuations	0	92.5
Change in Bank Bill Swap Bid Rate [member] \| Interest Bearing Borrowings [Member] \| Floating Interest Rate [member]
Disclosure Of Financial Risk Management [line items]
Borrowings exposed to interest rate fluctuations	168.5	316.5
Sensitivity to interest rates [member] \| Interest Bearing Borrowings [Member]
Disclosure Of Financial Risk Management [line items]
Borrowings exposed to interest rate fluctuations	$ 252	$ 1,057.4

[1]	Refer note 42.

Capital Management - Additional

Capital Management - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [abstract]
Term loan and revolving credit facility	$ 1,200	$ 1,290
Ratio of net debt to adjusted EBITDA, long-term target description	ratio of net debt to adjusted EBITDA of one times or lower
Ratio of net debt to adjusted EBITDA required for external borrowings description	net debt to adjusted EBITDA ratio of 3.5 or below	net debt to adjusted EBITDA ratio of 2.5 or below
Currency used for measurement of ratio	United States dollar	United States dollar

Capital Management - Summary of

Capital Management - Summary of Reconciliation of Net Operating Profit (Detail) $ in Millions		Jan. 01, 2018USD ($)	Dec. 31, 2019USD ($)Times	Dec. 31, 2018USD ($)Times		Dec. 31, 2017USD ($)Times		Jan. 01, 2019USD ($)	Dec. 31, 2016USD ($)	[1]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Borrowings			$ 1,845.8	$ 1,906.8	[1]	$ 1,782.4	[1]
Less: Cash and cash equivalents		$ 393.8	515	219.7	[1]	393.8	[1]		$ 471
Net debt		1,388.6		$ 1,687.1		$ 1,388.6
Lease liability								$ 209.6
Net debt to adjusted EBITDA \| Times				1.52		1.10
Reconciliation of (loss)/profit for the year to adjusted EBITDA:
Profit/(loss) for the year			174.7	$ (344.8)		$ (7.7)
Mining and income taxation			175.6	(65.9)	[1]	173.2	[1]
Royalties	[1]		73.7	62.5		62
Finance expense			102.2	88		81.3
Investment income			(7.3)	(7.8)		(5.6)
Gain on financial instruments			238	(21)		(34.4)
Foreign exchange loss			5.2	(6.4)		3.5
Amortisation and depreciation			610	668.4		748.1
Share-based payments			20.5	37.5		26.8
Long-term incentive plan			9.1	1.1	[1]	5	[1]
Restructuring costs			0.6	113.9		9.2
Silicosis settlement costs			(1.6)	(4.5)	[1]	30.2	[1]
Impairment, net of reversal of impairment of investments and assets			9.8	520.3		200.2
Profit on disposal of assets			(1.2)	51.6		(4)
Share of results of equity accounted investees, net of taxation			(3.1)	13.1		1.3
Rehabilitation income			13.4	(0.9)
Realised gain on derivative contracts			(132.1)	53.8
Gain on acquisition of Asanko			0	(51.8)	[1]	0	[1]
Lease payments			(56.9)	0
Other			2.7	4.5
Adjusted EBITDA		$ 1,263.7	1,233.3	1,111.6		$ 1,263.7
Increase (decrease) due to changes in accounting policy required by IFRSs [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Lease liability			332.9
Reconciliation of (loss)/profit for the year to adjusted EBITDA:
Lease payments			56.9
Pre IFRS16 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Net debt			$ 1,330.8	$ 1,687.1
Net debt to adjusted EBITDA \| Times			1.08	1.52
Reconciliation of (loss)/profit for the year to adjusted EBITDA:
Adjusted EBITDA			$ 1,233.3	$ 1,111.6
IFRS16 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Net debt			$ 1,663.7
Net debt to adjusted EBITDA \| Times			1.29
Reconciliation of (loss)/profit for the year to adjusted EBITDA:
Adjusted EBITDA			$ 1,290.2

[1]	Refer note 42.

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of transactions between related parties [line items]
Key management remuneration	$ 21.3	$ 17
Director's interest in issued share capital or voting control	1.00%
Executive Committee and Non-Executive Directors [Member]
Disclosure of transactions between related parties [line items]
Key management personnel's beneficial interest in issued and listed share capital	0.10%	0.10%	0.20%

Related parties - Summary of Re

Related parties - Summary of Remuneration to Related Parties (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of transactions between related parties [line items]
Salary	$ 334,800,000	$ 392,800,000	$ 414,700,000
Pension Fund Contribution
Cash Incentive
other
Share - based expense	20,500,000	37,500,000	$ 26,800,000
Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees	885,900	912,600
Committee fees	364,900	341,300
Total remuneration	1,250,800	1,253,900
Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	6,245,800	6,427,500
Pension Fund Contribution	560,100	557,300
Cash Incentive	3,951,200	3,368,700
other	363,800	580,800
Share - based expense	10,156,600	5,980,200
LTIP expense	0	129,400
Total remuneration	21,277,500	17,044,000
C Carolus [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees	215,800	231,300
Committee fees	0	0
Total remuneration	215,800	231,300
R Menell [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees	140,500	150,500
Committee fees	0	0
Total remuneration	140,500	150,500
D Ncube [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees		30,700
Committee fees		21,300
Total remuneration		52,000
Y Suleman [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees	70,800	75,900
Committee fees	65,700	72,400
Total remuneration	138,500	148,300
P Bacchus [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees	79,300	80,600
Committee fees	72,900	61,100
Total remuneration	152,200	141,700
S Reid [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees	79,300	80,600
Committee fees	62,900	55,400
Total remuneration	142,200	136,000
T Goodlace [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees	70,800	75,900
Committee fees	35,800	38,400
Total remuneration	106,600	114,300
A Andani [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees	79,300	80,600
Committee fees	46,000	40,200
Total remuneration	125,300	120,800
C Letton [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees	79,300	80,600
Committee fees	51,600	49,800
Total remuneration	130,900	130,400
P Mahanyele-Dabengwa [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Directors fees	70,800	25,900
Committee fees	30,000	2,700
Total remuneration	100,800	28,600
N Holland [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	1,226,800	1,251,600
Pension Fund Contribution	24,200	26,500
Cash Incentive	913,400	661,500
other	100	0
Share - based expense	1,936,500	1,654,800
LTIP expense	0	25,500
Total remuneration	4,101,000	3,619,900
P Schmidt [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	608,300	626,600
Pension Fund Contribution		48,200
Cash Incentive		306,200
other		2,100
Share - based expense	1,331,700	876,200
LTIP expense	0	25,300
Total remuneration	2,487,400	1,884,500
Executive Directors [member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	1,835,100	1,878,200
Pension Fund Contribution		74,700
Cash Incentive		967,700
other		2,100
Share - based expense	3,268,200	2,531,000
LTIP expense	0	50,800
Total remuneration	6,588,400	5,504,400
L Rivera [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	553,500	668,800
Pension Fund Contribution	58,500	72,800
Cash Incentive	142,600	132,900
other	241,800	386,800
Share - based expense	780,900	202,600
LTIP expense	0	0
Total remuneration	1,777,300	1,463,900
A Baku [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	839,700	808,000
Pension Fund Contribution	193,100	185,800
Cash Incentive	533,300	634,800
other	103,800	68,000
Share - based expense	1,573,100	990,400
LTIP expense	0	25,500
Total remuneration	3,243,000	2,712,500
R Butcher [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	363,400	384,500
Pension Fund Contribution	36,300	37,300
Cash Incentive	218,000	192,400
other	0	0
Share - based expense	501,100	238,500
LTIP expense	0	0
Total remuneration	1,118,800	852,700
N Chohan [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	352,800	367,200
Pension Fund Contribution	24,200	26,500
Cash Incentive	242,000	213,900
other	1,600	1,800
Share - based expense	649,700	341,100
LTIP expense	0	6,900
Total remuneration	1,270,300	957,500
B Mattison [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	441,400	453,600
Pension Fund Contribution	24,200	26,500
Cash Incentive	298,600	271,900
other	0	2,500
Share - based expense	969,800	545,100
LTIP expense	0	16,400
Total remuneration	1,734,000	1,316,000
T Harmse [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	354,300	369,700
Pension Fund Contribution	25,100	26,500
Cash Incentive	243,500	215,300
other	5,400	7,800
Share - based expense	680,500	433,500
LTIP expense	0	13,900
Total remuneration	1,308,800	1,066,600
A Nagaser [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	234,200	243,300
Pension Fund Contribution	24,600	27,000
Cash Incentive	160,100	131,100
other	1,900	400
Share - based expense	405,200	185,800
LTIP expense	0	5,000
Total remuneration	826,000	592,700
S Mathews [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	472,100	438,200
Pension Fund Contribution	54,500	29,500
Cash Incentive	311,600	289,400
other	7,300	4,900
Share - based expense	697,000	399,200
LTIP expense	0	10,900
Total remuneration	1,542,500	1,172,200
M Preece [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	514,300	541,700
Pension Fund Contribution	25,100	26,500
Cash Incentive	271,800	168,800
other	0	400
Share - based expense	362,700	113,000
LTIP expense	0	0
Total remuneration	1,173,900	850,400
R Bardien [Member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	285,000	274,300
Pension Fund Contribution	24,200	24,300
Cash Incentive	116,900	150,500
other	0	106,100
Share - based expense	268,400	0
LTIP expense	0	0
Total remuneration	694,500	555,200
Prescribed Officers [member] \| Key management personnel of entity or parent [member]
Disclosure of transactions between related parties [line items]
Salary	4,410,700	4,549,300
Pension Fund Contribution	489,800	482,600
Cash Incentive	2,538,400	2,401,000
other	361,800	578,700
Share - based expense	6,888,400	3,449,200
LTIP expense	0	78,600
Total remuneration	$ 14,689,100	$ 11,539,600

Related parties - Summary of _2

Related parties - Summary of Remuneration to Related Parties (Parenthetical) (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
N Holland [Member]
Disclosure of transactions between related parties [line items]
Salary paid, executive directors and prescribed officers	$ 0	$ 406,700
P Schmidt [Member]
Disclosure of transactions between related parties [line items]
Salary paid, executive directors and prescribed officers	0	124,150
B Mattison [Member]
Disclosure of transactions between related parties [line items]
Salary paid, executive directors and prescribed officers	0		$ 88,217
S Reid [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Services received from related party	14,351,000	0
A Andani [Member] \| Non Executive Directors [member]
Disclosure of transactions between related parties [line items]
Services received from related party	$ 70,021,000	$ 141,605,000

Changes in Significant Accoun_3

Changes in Significant Accounting Policies - Summary of Impact to IFRS 16 on the Measuring Lease Liabilities For Leases That Classified As Operating Leases (Detail)	Jan. 01, 2019
Australia [member] \| Bottom of range [member]
Disclosure Of Changes In Sigificant Accounting Policies [line items]
Operating lease payments discounted rate	3.46%
Australia [member] \| Top of range [member]
Disclosure Of Changes In Sigificant Accounting Policies [line items]
Operating lease payments discounted rate	6.39%
Ghana [member] \| Bottom of range [member]
Disclosure Of Changes In Sigificant Accounting Policies [line items]
Operating lease payments discounted rate	6.83%
Ghana [member] \| Top of range [member]
Disclosure Of Changes In Sigificant Accounting Policies [line items]
Operating lease payments discounted rate	7.68%
South Africa [member]
Disclosure Of Changes In Sigificant Accounting Policies [line items]
Operating lease payments discounted rate	9.84%
Peru [member] \| Bottom of range [member]
Disclosure Of Changes In Sigificant Accounting Policies [line items]
Operating lease payments discounted rate	4.50%
Peru [member] \| Top of range [member]
Disclosure Of Changes In Sigificant Accounting Policies [line items]
Operating lease payments discounted rate	4.76%
Corporate and other [Member] \| Bottom of range [member]
Disclosure Of Changes In Sigificant Accounting Policies [line items]
Operating lease payments discounted rate	4.00%
Corporate and other [Member] \| Top of range [member]
Disclosure Of Changes In Sigificant Accounting Policies [line items]
Operating lease payments discounted rate	10.25%

Changes in Significant Accoun_4

Changes in Significant Accounting Policies - Reconciliation Of Operating Lease Commitments (Detail) - USD ($) $ in Millions	Jan. 01, 2019	Dec. 31, 2018
Disclosure Of Changes In Sigificant Accounting Policies [abstract]
Operating lease commitments at 31 December 2018 as disclosed under IAS 17		$ 657.4
Discounting	$ (91)
Non-lease elements	(356.8)
Lease liability recognised at 1 January 2019	$ 209.6

Changes in Significant Accoun_5

Changes in Significant Accounting Policies - Additional Information (Detail) - IFRS 16 $ in Millions	Jan. 01, 2019USD ($)
Disclosure Of Changes In Sigificant Accounting Policies [line items]
Additions to right of use assets	$ 209.6
Additional To lease liabilities	$ 209.6

Correction Of Error Relating _3

Correction Of Error Relating To Year-End Cut-Off - (a) Consolidated statement of financial position (Details) $ in Thousands	Jan. 01, 2018USD ($)	Dec. 31, 2019USD ($)		Dec. 31, 2018USD ($)Times		Dec. 31, 2017USD ($)Times		Dec. 31, 2016USD ($)
Statement [line items]
Cash and cash equivalents	$ 393,800	$ 515,000		$ 219,700	[1]	$ 393,800	[1]	$ 471,000	[1]
Trade and other receivables	171,800	137,100		138,600	[1]	171,800
Other	5,939,200			5,551,400		5,939,200
Total assets	6,504,800	6,561,300		5,909,700	[1]	6,504,800
Borrowings	1,587,900	1,160,900		1,814,300	[1]	1,587,900	[1]
Current portion of borrowings	194,500	684,900		92,500	[1]	194,500	[1]
Trade and other payables	463,100	594,400		417,500	[1]	463,100
Taxation payable	46,700	24,800	[1]	900	[1]	46,700	[1]	87,000	[1]
Other	809,600			877,600		809,600
Total liabilities	3,101,800	3,652,600		3,202,800	[1]	3,101,800
Total equity	3,403,000	2,908,700		2,706,900	[1]	3,403,000		3,173,300
Net debt	1,388,600			1,687,100		1,388,600
Adjusted EBITDA	$ 1,263,700	$ 1,233,300		$ 1,111,600		$ 1,263,700
Net debt to adjusted EBITDA \| Times				1.52		1.10
previously reported [member]
Statement [line items]
Cash and cash equivalents				$ 399,700		$ 479,000		526,700
Trade and other receivables				153,200		201,900
Other				5,551,400		5,939,200
Total assets				6,104,300		6,260,100
Borrowings				1,925,300		1,587,900
Current portion of borrowings				86,300		193,600
Trade and other payables				503,000		548,500
Taxation payable				5,200		77,500
Other				877,600		809,600
Total liabilities				3,397,400		3,217,100
Total equity				2,706,900		3,403,000
Net debt				1,611,900		1,302,500
Adjusted EBITDA				$ 1,111,600		$ 1,263,700
Net debt to adjusted EBITDA \| Times				1.45		1.03
Adjustments [member]
Statement [line items]
Cash and cash equivalents				$ (180,000)		$ (85,200)		$ (55,700)
Trade and other receivables				(14,600)		(30,100)
Other				0		0
Total assets				(194,600)		(115,300)
Borrowings				(111,000)		0
Current portion of borrowings				6,200		900
Trade and other payables				(85,500)		(85,400)
Taxation payable				(4,300)		(30,800)
Other				0		0
Total liabilities				(19,460)		(115,300)
Total equity				0		0
Net debt				75,200		86,100
Adjusted EBITDA				$ 0		$ 0
Net debt to adjusted EBITDA \| Times

[1]	Refer note 42.

Correction Of Error Relating _4

Correction Of Error Relating To Year-End Cut-Off - (b) Consolidated statement of cash flows (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Statement [line items]
Change in working capital	[1]	$ (24.6)	$ (31.9)		$ (89.9)
Taxation paid	[1]	(181.8)	(190.7)		(249.4)
Other			791.3		1,071.3
Cash flows from operating activities		845	568.7	[1]	732	[1]
Cash flows from investing activities		(446.8)	(886.8)	[1]	(908.6)	[1]
Loans raised		1,538	690	[1]	787.6	[1]
Loans repaid		(1,604.3)	(535.9)	[1]	(702.5)	[1]
Other			(2.5)		0
Cash flows from financing activities		(104.6)	151.6	[1]	85.1	[1]
Net cash utilised		293.6	(166.5)	[1]	(91.5)	[1]
Effect of exchange rate fluctuation on cash held		1.7	(7.6)	[1]	14.3	[1]
Cash and cash equivalents at beginning of the year	[1]	219.7	393.8		471
Cash and cash equivalents at end of the year		515	219.7	[1]	393.8	[1]
previously reported [member]
Statement [line items]
Change in working capital			(16.3)		(69.4)
Taxation paid			(217.2)		(239.5)
Other			791.3		1,071.3
Cash flows from operating activities			557.8		762.4
Cash flows from investing activities			(886.8)		(908.6)
Loans raised			691.7		779.7
Loans repaid			(431.9)		(695.5)
Other			(2.5)		0
Cash flows from financing activities			257.3		84.2
Net cash utilised			(71.7)		(62)
Effect of exchange rate fluctuation on cash held			(7.6)		14.3
Cash and cash equivalents at beginning of the year		399.7	479		526.7
Cash and cash equivalents at end of the year			399.7		479
Adjustments [member]
Statement [line items]
Change in working capital			(15.6)		(20.5)
Taxation paid			(26.5)		(8.9)
Other			0		0
Cash flows from operating activities			10.9		(30.4)
Cash flows from investing activities			0		0
Loans raised			(1.7)		7.9
Loans repaid			(104)		(7)
Other			0		0
Cash flows from financing activities			(105.7)		0.9
Net cash utilised			(94.8)		(29.5)
Effect of exchange rate fluctuation on cash held			0		0
Cash and cash equivalents at beginning of the year		$ (180)	(85.2)		(55.7)
Cash and cash equivalents at end of the year			$ (180)		$ (85.2)

[1]	Refer note 42.

Segment Report - Schedule of Se

Segment Report - Schedule of Segment Report (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017		Jan. 01, 2018
Disclosure of operating segments [line items]
Revenue		$ 2,967.1	$ 2,577.8		$ 2,761.8
Cost of sales		(2,033.5)	(2,043)		(2,105.1)
Cost of sales before gold inventory change and amortisation and depreciation		(1,466.5)	(1,390.8)		(1,426.5)
Gold inventory change		43	16.2		69.5
Amortisation and depreciation		(610)	(668.4)		(748.1)
Share-based payments		(20.5)	(37.5)		(26.8)
Long-term incentive plan		(9.1)	(1.1)	[1]	(5)	[1]
Exploration expense		(84.4)	(104.2)		(109.8)
Restructuring costs		(0.6)	(113.9)		(9.2)
Silicosis settlement costs		(1.6)	(4.5)	[1]	30.2	[1]
Profit/(loss) on disposal of assets		1.2	(51.6)		4
Investment income		7.3	7.8		5.6
Finance expense		(102.2)	(88)		(81.3)
Gain on acquisition of Asanko		0	51.8	[1]	0	[1]
Royalties	[1]	(73.7)	(62.5)		(62)
Mining and income tax		175.6	(65.9)	[1]	173.2	[1]
Profit/(loss) for the year		174.7	(344.8)		(7.7)
Owners of the parent		161.6	(348.2)		(18.7)
Non-controlling interest holders		13.1	3.4		11
Total assets (excluding deferred taxation)		6,561.3	5,909.7	[1]	6,504.8		$ 6,504.8
Total liabilities (excluding deferred taxation)		3,652.6	3,202.8	[1]	3,101.8		$ 3,101.8
Continuing operations [member]
Disclosure of operating segments [line items]
Revenue					2,761.8
Cost of sales					(2,105.1)
Cost of sales before gold inventory change and amortisation and depreciation					(1,426.5)
Gold inventory change					69.5
Amortisation and depreciation					(748.1)
Other income/(costs)					10.6
Share-based payments		(20.5)	(37.5)		(26.8)
Long-term incentive plan					(5)
Exploration expense					(109.8)
Restructuring costs					(9.2)
Silicosis settlement costs					(30.2)
Impairment and reversal of impairment of investments and assets, net					(200.2)
Profit/(loss) on disposal of assets					4
Investment income					5.6
Finance expense					(81.3)
Gain on acquisition of Asanko					0
Royalties					(62)
Mining and income tax					(173.2)
Current taxation					(204.7)
Deferred taxation					31.5
Profit/(loss) for the year					(20.8)
Owners of the parent					(31.8)
Non-controlling interest holders					11
Total assets (excluding deferred taxation)					6,548.1
Total liabilities (excluding deferred taxation)					2,763.2
Net deferred taxation (assets)/liabilities					381.9
Capital expenditure					833.6
Discontinuing operation [member]
Disclosure of operating segments [line items]
Revenue					49
Cost of sales					(50.7)
Cost of sales before gold inventory change and amortisation and depreciation					(46.3)
Gold inventory change					(0.9)
Amortisation and depreciation					(3.5)
Other income/(costs)					(0.2)
Share-based payments					(0.6)
Long-term incentive plan					(0.1)
Exploration expense					(1.5)
Restructuring costs					0
Silicosis settlement costs					0
Impairment and reversal of impairment of investments and assets, net					0
Profit/(loss) on disposal of assets					0
Investment income					0.4
Finance expense					0
Gain on acquisition of Asanko					23.5
Royalties					(1.1)
Mining and income tax					(5.6)
Current taxation					(2.3)
Deferred taxation					(3.3)
Profit/(loss) for the year					13.1
Owners of the parent					13.1
Non-controlling interest holders					0
Total assets (excluding deferred taxation)					0
Total liabilities (excluding deferred taxation)					0
Net deferred taxation (assets)/liabilities					0
Capital expenditure					6.8
Corporate and other [member]
Disclosure of operating segments [line items]
Revenue		0	0		0
Cost of sales		(10.9)	(3.1)		(1.8)
Cost of sales before gold inventory change and amortisation and depreciation		0.1	0.6		0.9
Gold inventory change		0	0		0
Amortisation and depreciation		(11)	(3.7)		(2.7)
Other income/(costs)		(20.8)	(44.5)		(10.3)
Loss on financial instruments		(51.3)
Share-based payments		(10.5)	(10.4)		(7.6)
Long-term incentive plan		(5.3)	(1.6)		(1.3)
Exploration expense		(50)	(65)		(57.8)
Profit on disposal of Maverix Metals Incorporated		14.6
Restructuring costs		0	0		0
Silicosis settlement costs		1.6	4.5		(30.2)
Impairment and reversal of impairment of investments and assets, net		(9.6)	(272.2)		(242.5)
Profit/(loss) on disposal of assets		0	(14.2)		(0.3)
Investment income		(4.8)	(2.3)		(1)
Finance expense		(50.7)	(54.5)		(49.1)
Gain on acquisition of Asanko			51.8		0
Royalties		0	0		0
Mining and income tax		(4)	29.8		(3)
Current taxation		(6.1)	(13.9)		(4.2)
Deferred taxation		2.1	43.7		1.2
Profit/(loss) for the year		(201.7)	(381.8)		(404.9)
Owners of the parent		(201.7)	(381.8)		(404.9)
Non-controlling interest holders		0	0		0
Total assets (excluding deferred taxation)		32.8	949.2		1,017.8
Total liabilities (excluding deferred taxation)		(7.3)	790.1		572.4
Net deferred taxation (assets)/liabilities		(53.4)	(59.1)		(18.3)
Capital expenditure		2.8	15.1		6.4
Group [Member]
Disclosure of operating segments [line items]
Revenue					2,810.8
Cost of sales					(2,155.8)
Cost of sales before gold inventory change and amortisation and depreciation					(1,472.8)
Gold inventory change					68.6
Amortisation and depreciation					(751.6)
Other income/(costs)					10.4
Share-based payments					(27.4)
Long-term incentive plan					(5.1)
Exploration expense					(111.3)
Restructuring costs					(9.2)
Silicosis settlement costs					(30.2)
Impairment and reversal of impairment of investments and assets, net					(200.2)
Profit/(loss) on disposal of assets					4
Investment income					6
Finance expense					(81.3)
Gain on acquisition of Asanko					23.5
Royalties					(63.1)
Mining and income tax					(179)
Current taxation					(207)
Deferred taxation					28
Profit/(loss) for the year					(7.7)
Owners of the parent					(18.7)
Non-controlling interest holders					11
Total assets (excluding deferred taxation)					6,548.1
Total liabilities (excluding deferred taxation)					2,763.2
Net deferred taxation (assets)/liabilities					381.9
Capital expenditure					840.4
Group including Asanko [member]
Disclosure of operating segments [line items]
Revenue		3,120.4	2,632.7
Cost of sales		(2,166.9)	(2,095.9)
Cost of sales before gold inventory change and amortisation and depreciation		(1,555.2)	(1,432.4)
Gold inventory change		41.3	20.4
Amortisation and depreciation		(653)	(683.9)
Other income/(costs)		(77.7)	(30.8)
Loss on financial instruments		(238)
Share-based payments		(20.5)	(37.5)
Long-term incentive plan		(9.1)	(1.1)
Exploration expense		(84.4)	(104.2)
Profit on disposal of Maverix Metals Incorporated		14.6
Restructuring costs		(0.6)	(113.9)
Silicosis settlement costs		1.6	4.5
Impairment and reversal of impairment of investments and assets, net		(9.8)	(520.3)
Profit/(loss) on disposal of assets		1.2	(51.6)
Investment income		7.3	7.8
Finance expense		(102.2)	(88)
Gain on acquisition of Asanko			51.8
Royalties		(81.4)	(65.3)
Mining and income tax		(175.4)	65.9
Current taxation		(190.6)	(145.7)
Deferred taxation		15.2	211.6
Profit/(loss) for the year		179.1	(345.9)
Owners of the parent		166	(349.3)
Non-controlling interest holders		13.1	3.4
Total assets (excluding deferred taxation)		6,295.8	5,834.8
Total liabilities (excluding deferred taxation)		3,219	2,942.5
Net deferred taxation (assets)/liabilities		168.1	185.4
Capital expenditure		639.3	827
Group excluding Asanko [member]
Disclosure of operating segments [line items]
Revenue		2,967.1	2,577.8
Cost of sales		(2,033.5)	(2,043)
Cost of sales before gold inventory change and amortisation and depreciation		(1,466.5)	(1,390.8)
Gold inventory change		43	16.2
Amortisation and depreciation		(610)	(668.4)
Other income/(costs)		(69.7)	(30.5)
Loss on financial instruments		(238)
Share-based payments		(20.5)	(37.5)
Long-term incentive plan		(9.1)	(1.1)
Exploration expense		(84.4)	(104.2)
Profit on disposal of Maverix Metals Incorporated		14.6
Restructuring costs		(0.6)	(113.9)
Silicosis settlement costs		1.6	4.5
Impairment and reversal of impairment of investments and assets, net		(9.8)	(520.3)
Profit/(loss) on disposal of assets		1.2	(51.6)
Investment income		7.3	7.8
Finance expense		(102.2)	(88)
Gain on acquisition of Asanko			51.8
Royalties		(73.7)	(62.5)
Mining and income tax		(175.6)	65.9
Current taxation		(190.6)	(145.7)
Deferred taxation		15	211.6
Profit/(loss) for the year		174.7	(344.8)
Owners of the parent		161.6	(348.2)
Non-controlling interest holders		13.1	3.4
Total assets (excluding deferred taxation)		6,295.8	5,834.8
Total liabilities (excluding deferred taxation)		3,219	2,942.5
Net deferred taxation (assets)/liabilities		168.1	185.4
Capital expenditure		612.5	814.2
South Africa [member]
Disclosure of operating segments [line items]
Royalties		(1.6)	(1)		(1.8)
South Africa [member] \| South deep [member]
Disclosure of operating segments [line items]
Revenue		314.8	210.1		354.1
Cost of sales		(275.1)	(320.5)		(379)
Cost of sales before gold inventory change and amortisation and depreciation		(245.9)	(262)		(306.3)
Gold inventory change		3.7	(9.6)		1.5
Amortisation and depreciation		(32.9)	(48.9)		(74.2)
Other income/(costs)		(3)	(6.3)		7.6
Loss on financial instruments		(25.8)
Share-based payments		0.8	(4.7)		(3.5)
Long-term incentive plan		(1)	0.1		0
Exploration expense		0	0		0
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		(0.3)	(11.2)		(2.3)
Silicosis settlement costs		0	0		0
Impairment and reversal of impairment of investments and assets, net		0	(246.2)		0
Profit/(loss) on disposal of assets		0.7	1		0.3
Investment income		1	0.9		0.8
Finance expense		(6.6)	(9.6)		(12.4)
Gain on acquisition of Asanko			0		0
Royalties		(1.6)	(1)		(1.8)
Mining and income tax		3.4	162.7		10.9
Current taxation		0	0		0
Deferred taxation		3.4	162.7		10.9
Profit/(loss) for the year		7.2	(224.7)		(25.3)
Owners of the parent		7.2	(224.7)		(25.3)
Non-controlling interest holders		0	0		0
Total assets (excluding deferred taxation)		875	812.5		1,220.5
Total liabilities (excluding deferred taxation)		1,357.9	1,277.6		1,352.1
Net deferred taxation (assets)/liabilities		(201)	(189)		(47.6)
Capital expenditure		33.1	58.3		82.4
Ghana [member]
Disclosure of operating segments [line items]
Revenue		1,162	950.8		891.1
Cost of sales		(826.1)	(754.3)		(670.5)
Cost of sales before gold inventory change and amortisation and depreciation		(568.9)	(483.8)		(469.3)
Gold inventory change		21.5	13.2		41.1
Amortisation and depreciation		(278.7)	(283.7)		(242.3)
Other income/(costs)		(35.1)	7.2		(3.7)
Loss on financial instruments		(35.1)
Share-based payments		(5.2)	(8.9)		(6.1)
Long-term incentive plan		(1)	0.4		(1.2)
Exploration expense		0	(0.4)		0
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		(0.3)	(102.7)		(6.9)
Silicosis settlement costs		0	0		0
Impairment and reversal of impairment of investments and assets, net		0	0		(10.3)
Profit/(loss) on disposal of assets		0.3	(38)		2.7
Investment income		10.1	8.3		3.6
Finance expense		(27.2)	(14.1)		(10.3)
Gain on acquisition of Asanko			0		0
Royalties		(43.8)	(31.3)		(27.1)
Mining and income tax		(67.3)	13.9		(55.5)
Current taxation		(72.5)	(19.6)		(58)
Deferred taxation		5.2	33.5		2.5
Profit/(loss) for the year		131.1	30.9		105.8
Owners of the parent		118.4	27.5		95.3
Non-controlling interest holders		12.7	3.2		10.5
Total assets (excluding deferred taxation)		2,214.3	1,735.4		1,950.1
Total liabilities (excluding deferred taxation)		638.5	284.7		362.3
Net deferred taxation (assets)/liabilities		241.5	246.5		280
Capital expenditure		228.6	307.4		312.8
Ghana [member] \| Tarkwa [member]
Disclosure of operating segments [line items]
Revenue		720.4	666.9		710.8
Cost of sales		(497.2)	(477.1)		(526)
Cost of sales before gold inventory change and amortisation and depreciation		(329.8)	(298.7)		(348)
Gold inventory change		14.4	(10.1)		42
Amortisation and depreciation		(181.8)	(168.3)		(220)
Other income/(costs)		(12.8)	(0.9)		(3.1)
Loss on financial instruments		(23.8)
Share-based payments		(3.4)	(6.8)		(4.8)
Long-term incentive plan		(0.7)	0.4		(0.9)
Exploration expense		0	0		0
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		(0.3)	(88.8)		(4.7)
Silicosis settlement costs		0	0		0
Impairment and reversal of impairment of investments and assets, net		0	0		(6.8)
Profit/(loss) on disposal of assets		0.2	(38)		2.9
Investment income		10.1	8.3		3.4
Finance expense		(12.9)	(4.3)		(5.2)
Gain on acquisition of Asanko			0		0
Royalties		(25.8)	(21.2)		(21.7)
Mining and income tax		(52.4)	1.8		(58.6)
Current taxation		(72.5)	(19.6)		(58)
Deferred taxation		20.1	21.4		(0.6)
Profit/(loss) for the year		101.3	40.1		85.4
Owners of the parent		91.2	36.1		76.9
Non-controlling interest holders		10.1	4		8.5
Total assets (excluding deferred taxation)		1,773.8	1,566.9		1,765.2
Total liabilities (excluding deferred taxation)		276.9	152.7		232.3
Net deferred taxation (assets)/liabilities		241.6	261.7		283.1
Capital expenditure		125.5	156.1		180.6
Ghana [member] \| Damang [member]
Disclosure of operating segments [line items]
Revenue		288.3	229		180.3
Cost of sales		(195.5)	(224.3)		(144.5)
Cost of sales before gold inventory change and amortisation and depreciation		(150.4)	(143.5)		(121.3)
Gold inventory change		8.8	19.1		(0.9)
Amortisation and depreciation		(53.9)	(99.9)		(22.3)
Other income/(costs)		(14.3)	8.4		(0.6)
Loss on financial instruments		(11.3)
Share-based payments		(1.8)	(2.1)		(1.3)
Long-term incentive plan		(0.3)	0		(0.3)
Exploration expense		0	(0.4)		0
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		0	(13.9)		(2.2)
Silicosis settlement costs		0	0		0
Impairment and reversal of impairment of investments and assets, net		0	0		(3.5)
Profit/(loss) on disposal of assets		0.1	0		(0.2)
Investment income		0	0		0.2
Finance expense		(14.3)	(9.8)		(5.1)
Gain on acquisition of Asanko			0		0
Royalties		(10.3)	(7.3)		(5.5)
Mining and income tax		(15.1)	12.1		3.1
Current taxation		0	0		0
Deferred taxation		(15.1)	12.1		3.1
Profit/(loss) for the year		25.5	(8.3)		20.4
Owners of the parent		22.9	(7.5)		18.4
Non-controlling interest holders		2.6	(0.8)		2
Total assets (excluding deferred taxation)		440.5	168.5		184.9
Total liabilities (excluding deferred taxation)		361.6	132		130
Net deferred taxation (assets)/liabilities		(0.1)	(15.2)		(3.1)
Capital expenditure		76.3	138.5		132.1
Ghana [member] \| Asanko [member]
Disclosure of operating segments [line items]
Revenue		153.3	54.9
Cost of sales		(133.4)	(52.9)
Cost of sales before gold inventory change and amortisation and depreciation		(88.7)	(41.6)
Gold inventory change		(1.7)	4.2
Amortisation and depreciation		(43)	(15.5)
Other income/(costs)		(8)	(0.3)
Loss on financial instruments		0
Share-based payments		0	0
Long-term incentive plan		0	0
Exploration expense		0	0
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		0	0
Silicosis settlement costs		0	0
Impairment and reversal of impairment of investments and assets, net		0	0
Profit/(loss) on disposal of assets		0	0
Investment income		0	0
Finance expense		0	0
Gain on acquisition of Asanko			0
Royalties		(7.7)	(2.8)
Mining and income tax		0.2	0
Current taxation		0	0
Deferred taxation		0.2	0
Profit/(loss) for the year		4.3	(1.1)
Owners of the parent		4.3	(1.1)
Non-controlling interest holders		0	0
Total assets (excluding deferred taxation)		0	0
Total liabilities (excluding deferred taxation)		0	0
Net deferred taxation (assets)/liabilities		0	0
Capital expenditure		26.8	12.8
Peru [member] \| Cerro corona [member]
Disclosure of operating segments [line items]
Revenue		399	351		392.9
Cost of sales		(255)	(236.6)		(285.2)
Cost of sales before gold inventory change and amortisation and depreciation		(168.4)	(160.3)		(151.2)
Gold inventory change		6	5.5		(3.1)
Amortisation and depreciation		(92.6)	(81.8)		(130.9)
Other income/(costs)		(4.7)	1.5		(12.1)
Loss on financial instruments		0
Share-based payments		(1.1)	(4.3)		(3.6)
Long-term incentive plan		(0.4)	0.4		(0.7)
Exploration expense		(4.4)	(1.1)		(0.5)
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		0	0		0
Silicosis settlement costs		0	0		0
Impairment and reversal of impairment of investments and assets, net		(0.2)	(1.9)		52.6
Profit/(loss) on disposal of assets		0	0		0
Investment income		0	0		0
Finance expense		(7)	(5)		(4.7)
Gain on acquisition of Asanko			0		0
Royalties		(5.5)	(5.1)		(5.3)
Mining and income tax		(37.6)	(56.4)		(36.1)
Current taxation		(56.3)	(52.1)		(50.8)
Deferred taxation		18.7	(4.3)		14.7
Profit/(loss) for the year		83.1	42.6		97.4
Owners of the parent		82.7	42.4		96.9
Non-controlling interest holders		0.4	0.2		0.5
Total assets (excluding deferred taxation)		744.4	708.8		774
Total liabilities (excluding deferred taxation)		232.1	211.7		188.7
Net deferred taxation (assets)/liabilities		66.4	85.1		80.8
Capital expenditure		56.1	33.2		34
Australia [member]
Disclosure of operating segments [line items]
Revenue		1,244.6	1,120.8		1,123.7
Cost of sales		(799.7)	(781.3)		(767.5)
Cost of sales before gold inventory change and amortisation and depreciation		(572.1)	(526.9)		(499.3)
Gold inventory change		10.2	11.4		29.9
Amortisation and depreciation		(237.8)	(265.8)		(298.1)
Other income/(costs)		(14.1)	14.8		29
Loss on financial instruments		(125.8)
Share-based payments		(4.5)	(9.2)		(6)
Long-term incentive plan		(1.4)	(0.4)		(1.8)
Exploration expense		(30)	(37.2)		(49.6)
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		0	0		0
Silicosis settlement costs		0	0		0
Impairment and reversal of impairment of investments and assets, net		0	0		0
Profit/(loss) on disposal of assets		0.2	(0.4)		1.3
Investment income		1	0.9		2.2
Finance expense		(10.7)	(4.6)		(4.8)
Gain on acquisition of Asanko			0		0
Royalties		(30.5)	(27.9)		(27.8)
Mining and income tax		(69.9)	(85.3)		(89.5)
Current taxation		(55.7)	(89.6)		(91.7)
Deferred taxation		(14.2)	4.3		2.2
Profit/(loss) for the year		159.3	190.2		209.2
Owners of the parent		159.3	190.2		209.2
Non-controlling interest holders		0	0		0
Total assets (excluding deferred taxation)		2,429.3	1,501.7		1,585.7
Total liabilities (excluding deferred taxation)		997.8	276.8		287.8
Net deferred taxation (assets)/liabilities		114.7	71.4		82.8
Capital expenditure		318.7	278.7		316.9
Australia [member] \| St Ives [member]
Disclosure of operating segments [line items]
Revenue		505	464.7		457.3
Cost of sales		(333.8)	(332.2)		(330.9)
Cost of sales before gold inventory change and amortisation and depreciation		(231.3)	(200.9)		(187.6)
Gold inventory change		2.5	14.9		29
Amortisation and depreciation		(105)	(146.2)		(172.3)
Other income/(costs)		(5.4)	4.5		18
Loss on financial instruments		(49.3)
Share-based payments		(1.7)	(3.5)		(2.2)
Long-term incentive plan		(0.5)	(0.2)		(0.7)
Exploration expense		(10)	(18.2)		(23)
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		0	0		0
Silicosis settlement costs		0	0		0
Impairment and reversal of impairment of investments and assets, net		0	0		0
Profit/(loss) on disposal of assets		(0.4)	(0.3)		(0.2)
Investment income		0.4	0.4		0.9
Finance expense		(2.7)	(2.5)		(2.8)
Gain on acquisition of Asanko			0		0
Royalties		0	0		0
Mining and income tax		0	0		0
Current taxation		0	0		0
Deferred taxation		0	0		0
Profit/(loss) for the year		0	0		0
Owners of the parent		0	0		0
Non-controlling interest holders		0	0		0
Total assets (excluding deferred taxation)		792.7	702.4		693.7
Total liabilities (excluding deferred taxation)		160.1	135.2		138.2
Net deferred taxation (assets)/liabilities		0	0		0
Capital expenditure		98.3	127.2		156.2
Australia [member] \| Agnew [member]
Disclosure of operating segments [line items]
Revenue		304.6
Cost of sales		(224.9)
Cost of sales before gold inventory change and amortisation and depreciation		(164.6)
Gold inventory change		2.6
Amortisation and depreciation		(62.9)
Other income/(costs)		(0.4)
Loss on financial instruments		(28.7)
Share-based payments		(1.2)
Long-term incentive plan		(0.4)
Exploration expense		(2.8)
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		0
Silicosis settlement costs		0
Impairment and reversal of impairment of investments and assets, net		0
Profit/(loss) on disposal of assets		0.3
Investment income		0.3
Finance expense		(2.1)
Royalties		0
Mining and income tax		0
Current taxation		0
Deferred taxation		0
Profit/(loss) for the year		0
Owners of the parent		0
Non-controlling interest holders		0
Total assets (excluding deferred taxation)		567
Total liabilities (excluding deferred taxation)		114.9
Net deferred taxation (assets)/liabilities		0
Capital expenditure		76.1
Australia [member] \| Agnew Lawlers [member]
Disclosure of operating segments [line items]
Revenue			301.1		302.6
Cost of sales			(236.4)		(232.7)
Cost of sales before gold inventory change and amortisation and depreciation			(159.7)		(154.9)
Gold inventory change			(1.7)		4.5
Amortisation and depreciation			(75)		(82.3)
Other income/(costs)			9.1		6.4
Share-based payments			(2.6)		(1.7)
Long-term incentive plan			0		(0.5)
Exploration expense			(8)		(15.9)
Restructuring costs			0		0
Silicosis settlement costs			0		0
Impairment and reversal of impairment of investments and assets, net			0		0
Profit/(loss) on disposal of assets			(0.1)		1.5
Investment income			0.2		0.6
Finance expense			(1)		(1)
Gain on acquisition of Asanko			0		0
Royalties			0		0
Mining and income tax			0		0
Current taxation			0		0
Deferred taxation			0		0
Profit/(loss) for the year			0		0
Owners of the parent			0		0
Non-controlling interest holders			0		0
Total assets (excluding deferred taxation)			492.6		500
Total liabilities (excluding deferred taxation)			66.5		71.5
Net deferred taxation (assets)/liabilities			0		0
Capital expenditure			72.8		73.7
Australia [member] \| Granny Smith [member]
Disclosure of operating segments [line items]
Revenue		383.8	355		363.8
Cost of sales		(212.7)	(212.7)		(203.9)
Cost of sales before gold inventory change and amortisation and depreciation		(157)	(166.3)		(156.8)
Gold inventory change		(0.3)	(1.8)		(3.6)
Amortisation and depreciation		(55.4)	(44.6)		(43.5)
Other income/(costs)		(7.9)	1.1		4.6
Loss on financial instruments		(39.3)
Share-based payments		(1.3)	(3.1)		(2.1)
Long-term incentive plan		(0.4)	(0.2)		(0.6)
Exploration expense		(17)	(11)		(10.8)
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		0	0		0
Silicosis settlement costs		0	0		0
Impairment and reversal of impairment of investments and assets, net		0	0		0
Profit/(loss) on disposal of assets		0.3	0		0
Investment income		0.3	0.3		0.7
Finance expense		(2.7)	(1)		(1)
Gain on acquisition of Asanko			0		0
Royalties		0	0		0
Mining and income tax		0	0		0
Current taxation		0	0		0
Deferred taxation		0	0		0
Profit/(loss) for the year		0	0		0
Owners of the parent		0	0		0
Non-controlling interest holders		0	0		0
Total assets (excluding deferred taxation)		419.2	306.7		392
Total liabilities (excluding deferred taxation)		122	75.1		78.1
Net deferred taxation (assets)/liabilities		0	0		0
Capital expenditure		72.2	78.8		87
Australia [member] \| Gruyere Australia [member]
Disclosure of operating segments [line items]
Revenue		51.2	0		0
Cost of sales		(28.2)	0		(1.3)
Cost of sales before gold inventory change and amortisation and depreciation		(19.1)	0		(1.3)
Gold inventory change		5.4	0		0
Amortisation and depreciation		(14.5)	0		0
Other income/(costs)		(0.4)	(3.5)		0
Loss on financial instruments		(8.5)
Share-based payments		(0.3)	0		0
Long-term incentive plan		(0.1)	0		0
Exploration expense		(0.2)	(0.5)		(1.8)
Profit on disposal of Maverix Metals Incorporated		0
Restructuring costs		0	0		0
Silicosis settlement costs		0	0		0
Impairment and reversal of impairment of investments and assets, net		0	0		0
Profit/(loss) on disposal of assets		0	0		0
Investment income		0	0		0
Finance expense		(3.2)	(0.2)		0
Gain on acquisition of Asanko			0		0
Royalties		0	0		0
Mining and income tax		0	1.2		0
Current taxation		0	29.5		0
Deferred taxation		0	(28.3)		0
Profit/(loss) for the year		0	(3)		0
Owners of the parent		0	0		0
Non-controlling interest holders		0	0		0
Total assets (excluding deferred taxation)		650.4	127.2		34.9
Total liabilities (excluding deferred taxation)		600.8	101.6		32.9
Net deferred taxation (assets)/liabilities		0	30.5		0
Capital expenditure		$ 72.1	$ 134.3		81.1
Darlot [Member]
Disclosure of operating segments [line items]
Revenue					49
Cost of sales					(50.7)
Cost of sales before gold inventory change and amortisation and depreciation					(46.3)
Gold inventory change					(0.9)
Amortisation and depreciation					(3.5)
Other income/(costs)					(0.2)
Share-based payments					(0.6)
Long-term incentive plan					(0.1)
Exploration expense					(1.5)
Restructuring costs					0
Silicosis settlement costs					0
Impairment and reversal of impairment of investments and assets, net					0
Profit/(loss) on disposal of assets					0
Investment income					0.4
Finance expense					0
Gain on acquisition of Asanko					23.5
Royalties					(1.1)
Mining and income tax					(5.6)
Current taxation					(2.3)
Deferred taxation					(3.3)
Profit/(loss) for the year					13.1
Owners of the parent					13.1
Non-controlling interest holders					0
Total assets (excluding deferred taxation)					0
Total liabilities (excluding deferred taxation)					0
Net deferred taxation (assets)/liabilities					0
Capital expenditure					$ 6.8

[1]	Refer note 42.

Segment Report - Schedule of _2

Segment Report - Schedule of Segment Report (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of operating segments [line items]
Tax rate included in South Deep	29.00%	29.00%	30.00%
Equity Accounted Joint Venture	$ 172	$ 177.5
Share of loss of associates after taxation included in other income	3.1	(13.1)	$ (1.3)
Revenue from the sale of copper	165.1	169.2	177.8
Corporate and other [member] \| Other income/cost [member]
Disclosure of operating segments [line items]
Share of loss of associates after taxation included in other income	3.1	(13.1)	(1.3)
Corporate related costs	18.9	31.4	$ 9
Repurchase of notes, value	1,000
Gain loss on repurchase of notes	5
Asanko [member]
Disclosure of operating segments [line items]
Equity Accounted Joint Venture	$ 89.9	$ 85.8

Major Group Investments - Dir_3

Major Group Investments - Direct and Indirect - Schedule of Major Group Investments - Direct and Indirect (Detail) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Abosso Goldfields Limited [member] \| Class A Shares [member]
Disclosure of subsidiaries [line items]
Shares held	49,734,000	49,734,000
Group beneficial interest	90.00%	90.00%
Abosso Goldfields Limited [member] \| Class B Shares [member]
Disclosure of subsidiaries [line items]
Shares held	4,266,000	4,266,000
Group beneficial interest	90.00%	90.00%
Agnew Gold Mining Company Proprietary Limited [member]
Disclosure of subsidiaries [line items]
Shares held	54,924,757	54,924,757
Group beneficial interest	100.00%	100.00%
Beatrix Mines Limited [member]
Disclosure of subsidiaries [line items]
Shares held	96,549,020	96,549,020
Group beneficial interest	100.00%	100.00%
Beatrix Mining Ventures Limited [member]
Disclosure of subsidiaries [line items]
Shares held	9,625,001	9,625,001
Group beneficial interest	100.00%	100.00%
Darlot Mining Company Pty Ltd [Member]
Disclosure of subsidiaries [line items]
Shares held	1	1
Group beneficial interest	100.00%	100.00%
Driefontein Consolidated (Pty) Ltd [member]
Disclosure of subsidiaries [line items]
Shares held	1,000	1,000
Group beneficial interest	100.00%	100.00%
GFI Joint Venture Holdings (Proprietary) Limited [Member]
Disclosure of subsidiaries [line items]
Shares held	311,668,564	311,668,564
Group beneficial interest	100.00%	100.00%
GFL Mining Services Limited [member]
Disclosure of subsidiaries [line items]
Shares held	235,676,387	235,676,387
Group beneficial interest	100.00%	100.00%
Gold Fields Ghana Limited [member]
Disclosure of subsidiaries [line items]
Shares held	900	900
Group beneficial interest	90.00%	90.00%
Gold Fields Group Services (Pty) Ltd [member]
Disclosure of subsidiaries [line items]
Shares held	1	1
Group beneficial interest	100.00%	100.00%
Gold Fields Holdings Company BVI Limited [member]
Disclosure of subsidiaries [line items]
Shares held	4,084	4,084
Group beneficial interest	100.00%	100.00%
Gold Fields La Cima SA [member]
Disclosure of subsidiaries [line items]
Shares held	1,426,050,205	1,426,050,205
Group beneficial interest	99.50%	99.50%
Gold Fields Operations Limited [Member]
Disclosure of subsidiaries [line items]
Shares held	156,279,947	156,279,947
Group beneficial interest	100.00%	100.00%
Gold Fields Orogen Holdings (BVI) Ltd [Member]
Disclosure of subsidiaries [line items]
Shares held	356	356
Group beneficial interest	100.00%	100.00%
Gruyere Mining Company Pty Ltd [member]
Disclosure of subsidiaries [line items]
Shares held	1	1
Group beneficial interest	100.00%	100.00%
GSM Mining Company Pty Ltd [member]
Disclosure of subsidiaries [line items]
Shares held	1	1
Group beneficial interest	100.00%	100.00%
Kloof Gold Mining Company Ltd [member]
Disclosure of subsidiaries [line items]
Shares held	138,600,000	138,600,000
Group beneficial interest	100.00%	100.00%
Newshelf 899 (Pty) Ltd [member]
Disclosure of subsidiaries [line items]
Shares held	90,000,000	90,000,000
Group beneficial interest	100.00%	100.00%
St Ives Gold Mining Company Pty Ltd [Member]
Disclosure of subsidiaries [line items]
Shares held	281,051,329	281,051,329
Group beneficial interest	100.00%	100.00%

Major Group Investments - Dir_4

Major Group Investments - Direct and Indirect - Schedule of Major Group Investments - Direct and Indirect (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017	[1]	Jan. 01, 2018
Disclosure of subsidiaries [line items]
Dividends paid to non-controlling interests	$ 2.2	$ 9.8	[1]	$ 6.4
Accumulated non-controlling interest	131.7	120.8	[1]			$ 127.2
Abosso Goldfields Limited [member]
Disclosure of subsidiaries [line items]
Accumulated non-controlling interest	7.9	5.2
Dividends paid to non-controlling interests	0	0
Gold Fields Ghana Limited [member]
Disclosure of subsidiaries [line items]
Dividends paid to non-controlling interests	2	9.2
Accumulated non-controlling interest	125.5	115.3
Gold Fields La Cima SA [member]
Disclosure of subsidiaries [line items]
Dividends paid to non-controlling interests	0.2	0.6
Accumulated non-controlling interest	$ 2.1	$ 1.9
Newshelf 899 (Pty) Ltd [member]
Disclosure of subsidiaries [line items]
Phase-in participation term	20 years
BEE partners' stake	10.00%
Newshelf ownership percentage	90.00%

[1]	Refer note 42.

Major Group Investments Direct

Major Group Investments Direct and Indirect - Summary of Share Held in Investments in Associates Joint Ventures other Equity Investments and Percentage of Beneficial Interest (Detail) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Far Southeast Gold Resources Incorporated [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Group beneficial interest	40.00%	40.00%	40.00%
Equity investments [member] \| Asanko Gold Inc [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	22,354,657	22,354,657
Group beneficial interest	9.90%	9.90%
Equity investments [member] \| Bezant Resources PLC [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	17,945,922	17,945,922
Group beneficial interest	1.80%	1.80%
Equity investments [member] \| Cardinal Resources Limited [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	81,038,233	42,818,182
Group beneficial interest	16.40%	11.30%
Equity investments [member] \| Cardinal Resources Limited Options [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	0	38,220,051
Group beneficial interest	0.00%	25.80%
Equity investments [member] \| Clancy Exploration Limited [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	710,592	17,764,783
Group beneficial interest	0.20%	0.50%
Equity investments [member] \| Consolidated Woodjam Copper Corporation [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	16,115,740	16,115,740
Group beneficial interest	19.90%	19.90%
Equity investments [member] \| Gold Road Resources Limited [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	0	87,117,909
Group beneficial interest	0.00%	9.90%
Equity investments [member] \| Hummingbird Resources Plc [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	0	21,258,503
Group beneficial interest	0.00%	6.00%
Equity investments [member] \| Lefroy Exploration Limited [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	18,214,535	14,764,535
Group beneficial interest	18.40%	18.20%
Equity investments [member] \| Magmatic Resources Limited [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	19,200,000	17,600,000
Group beneficial interest	12.50%	15.00%
Equity investments [member] \| Orsu Metals Corporation [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	2,613,491	2,613,491
Group beneficial interest	6.20%	7.20%
Equity investments [member] \| Red 5 Limited [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	0	246,875,821
Group beneficial interest	0.00%	19.90%
Equity investments [member] \| Chakana Copper Corp3 [ member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Asanko Gold Inc.	15,686,275	0
Group beneficial interest	16.80%	0.00%
Associates [member] \| Maverix Metals Incorporated [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Maverix Metals Incorporated ("Maverix")	0	42,850,000
Group beneficial interest	0.00%	19.90%
Associates [member] \| Rusoro Mining Limited [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Maverix Metals Incorporated ("Maverix")	140,000,001	140,000,001
Group beneficial interest	25.70%	25.70%
Joint ventures [member] \| Far Southeast Gold Resources Incorporated [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Adansi Gold Company Limited	1,737,699	1,737,699
Group beneficial interest	40.00%	40.00%
Joint ventures [member] \| Asanko Gold Ghana Limited [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Adansi Gold Company Limited	450,000,000	450,000,000
Group beneficial interest	45.00%	45.00%
Joint ventures [member] \| Adansi Gold Company Limited [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Adansi Gold Company Limited	100,000	100,000
Group beneficial interest	50.00%	50.00%
Joint ventures [member] \| Shika Group Finance Limited [member]
Disclosure of Investments in Associates Joint Venture and Other Equity Investments [line items]
Adansi Gold Company Limited	10,000	10,000
Group beneficial interest	50.00%	50.00%