Nutrien (NTR) 40-F25 Feb 222021 FY Annual report (Canada)Financial data

Company Profile

Document and Entity Information

Document and Entity Information	12 Months Ended
Document and Entity Information	Dec. 31, 2021
Ifrs Statement [Line Items]
Document Type	40-F
Amendment Flag	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Trading Symbol	NTR
Entity Registrant Name	NUTRIEN LTD.
Entity Central Index Key	0001725964
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Interactive Date Current	Yes
Entity File Number	001-38336
Entity Address Address Line1	Suite 1700, 211 19th Street East
Entity Address City Or Town	Saskatoon
Entity Address Postal Zip Code	S7K 5R6
Entity Incorporation State Country Code	Z4
City Area Code	306
Local Phone Number	933-8500
Annual Information Form	true
Audited Annual Financial Statements	true
Document Annual Report	true
Document Registration Statement	false
Entity Tax Identification Number	98-1400416
Entity Primary SIC Number	2870
Entity Address, State or Province	SK
Title of 12(b) Security	Common Shares
Security Exchange Name	NYSE
Entity Address Country	CA
Auditor Firm ID	85
Auditor Name	KPMG LLP
Auditor Location	CA
Business Contact [Member]
Ifrs Statement [Line Items]
Entity Address Address Line1	28 Liberty St.
Entity Address City Or Town	New York
Entity Address Postal Zip Code	10005
City Area Code	212
Local Phone Number	894-8940
Contact Personnel Name	CT Corporation System
Entity Address, State or Province	NY

At A Glance

At A Glance	12 Months Ended
At A Glance	Dec. 31, 2021
At A Glance [Abstract]
At A Glance	2021 AT A GLANCE

Consolidated Statements of Earn

Consolidated Statements of Earnings - USD ($) $ in Millions	12 Months Ended
Consolidated Statements of Earnings - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Profit or loss [Abstract]
GROSS MARGIN	$ 9,409	$ 5,239
SALES (Note 3)	27,712	20,908
Freight, transportation and distribution (Note 4)	851	855
Cost of goods sold (Note 4)	17,452	14,814
Other expenses (income) (Note 6)	312	(2)
EARNINGS BEFORE FINANCE COSTS AND INCOME TAXES	4,781	902
Finance costs (Note 7)	613	520
EARNINGS BEFORE INCOME TAXES	4,168	382
Income tax (recovery) expense (Note 8)	989	(77)
NET EARNINGS	3,179	459
Profit (loss), attributable to owners of parent	3,153	459
Profit (loss), attributable to non-controlling interests	$ 26	$ 0
NET EARNINGS (LOSS) PER SHARE FROM CONTINUING OPERATIONS (Note 9)
Basic earnings (loss) per share	$ 5.53	$ 0.81
Diluted earnings (loss) per share	5.52	0.81
NET EARNINGS PER SHARE FROM DISCONTINUED OPERATIONS (Note 9)
Basic earnings (loss) per share	5.53	0.81
Diluted earnings (loss) per share	$ 5.52	$ 0.81
Weighted average shares outstanding for basic EPS (Note 9)	569,664,000	569,657,000
Weighted average shares outstanding for diluted EPS (Note 9)	571,289,000	569,686,000
Profit (loss)	$ 3,179	$ 459
Selling expenses (Note 4)	3,142	2,813
General and administrative expenses (Note 4)	477	429
Provincial mining taxes (Note 4)	466	204
Share-based compensation (Note 5)	198	69
Impairment of assets (Note 13 and 14)	$ (33)	$ (824)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement of comprehensive income [abstract]
COMPREHENSIVE INCOME	$ 3,257	$ 653
Comprehensive income, attributable to owners of parent	3,232	653
Comprehensive income, attributable to non-controlling interests	25	0
NET EARNINGS	3,179	459
Items that will not be reclassified to net earnings:
Net actuarial gain on defined benefit plans	95	75
Net fair value loss on investments	81	(7)
Items that have been or may be subsequently reclassified to net earnings:
Gain on currency translation of foreign operations	(115)	142
Other	17	(16)
OTHER COMPREHENSIVE INCOME	78	194
Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans	95	75
Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax	81	(7)
Gains (losses) on exchange differences on translation, net of tax	(115)	142
Other comprehensive income that have been or may be subsequently reclassified to net earnings as other	17	(16)
Net earnings	$ 3,179	$ 459

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
OPERATING ACTIVITIES
CASH PROVIDED BY OPERATING ACTIVITIES	$ 3,886	$ 3,323
Cash from operations before working capital changes	5,547	2,749
Net earnings	3,179	459
Depreciation and amortization	1,951	1,989
Share-based compensation (Note 5)	198	69
Impairment of assets (Notes 13,14)	33	824
Loss on early extinguishment of debt	142	0
Net gain on disposal of investment in MOPCO (Note 15)		(250)
(Recovery of) provision for deferred income tax	(31)	(9)
Cloud computing transition adjustment	36	0
Other long-term assets, liabilities and miscellaneous (Note 16)	39	(333)
Receivables	(1,669)	145
Inventories	(1,459)	85
Prepaid expenses and other current assets	(227)	(10)
Payables and accrued charges	1,694	354
INVESTING ACTIVITIES
CASH USED IN INVESTING ACTIVITIES	(1,807)	(1,204)
Capital Expenditure	1,783	1,549
Business acquisitions, net of cash acquired (Note 25)	(88)	(233)
Other	64	38
FINANCING ACTIVITIES
CASH USED IN FINANCING ACTIVITIES	(3,003)	(1,339)
Transaction costs on long-term debt	(7)	(15)
(Repayment of) proceeds from short-term debt, net (Note 17)	1,344	(892)
Proceeds from long-term debt (Note 18)	86	1,541
Repayment of long-term debt (Note 18)	(2,212)	(509)
Repayment of principal portion of lease liabilities (Note 18, 19)	(320)	(274)
Dividends paid (Note 23)	(1,045)	(1,030)
Repurchase of common shares (Note 23)	(1,035)	(160)
Issuance of common shares (Note 23)	200	0
Other financing activities	(14)	0
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(31)	3
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(955)	783
CASH AND CASH EQUIVALENTS - BEGINNING OF YEAR	1,454	671
CASH AND CASH EQUIVALENTS - END OF YEAR	499	1,454
Cash and cash equivalents comprised of:
Cash	428	1,375
Short-term investments	71	79
Cash and Cash equivalents total	499	1,454
SUPPLEMENTAL CASH FLOWS DISCLOSURES
Interest paid	491	498
Income taxes paid	435	156
Total cash outflow for leases	$ 393	$ 345

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Millions	Total	Loss on Currency Translation of Foreign Operations [Member]	Other [Member]	Number of Common Shares [Member]	Issued capital [Member]	Additional paid-in capital [Member]	Accumulated other comprehensive income [Member]	Retained earnings [Member]	Prior Year Minus One Normal Course Issuer Bid Share Repurchase [Member]	Prior Year Normal Course Issuer Bid Share Repurchase [Member]	Current Year Normal Course Issuer Bid Share Repurchase [Member]	Equity Attributable To Owners Of Parent [Member]	Noncontrolling Interests [Member]	Current Year Plus One Normal Course Issuer Bid Share Repurchase [Member]
Number of shares outstanding	572,942,809
Beginning balance at Dec. 31, 2019	$ 22,907	$ (204)	$ (47)		$ 15,771	$ 248	$ (251)	$ 7,101				$ 22,869	$ 38
Net earnings	459	0	0	$ 0	0	0	0	459				459	0
Other comprehensive (loss) income	$ 194	142	52	$ 0	0	0	194	0				194	0
Shares repurchased (Note 23)	3,832,580			(3,832,580)
Shares repurchased (Note 23)	$ (160)	0	0		(105)	(55)	0	0				(160)	0
Dividends declared	(1,029)	0	0	$ 0	0	0	0	(1,029)				1,029	0
Effect of share-based compensation including issuance of common shares	19	0	0	150,177	7	12	0	0				19	0
Transfer of net actuarial gain on defined benefit plans	0	0	(75)	0	0	0	(75)	75				0	0
Transfer of net loss on cash flow hedges	13	0	13	$ 0	0	0	13	0					0
Ending balance at Dec. 31, 2020	$ 22,403	(62)	(57)		15,673	205	(119)	6,606				22,365	38
Number of shares outstanding	569,260,406			569,260,406
Net earnings	$ 3,179	0	0	$ 0	0	0	0	3,153				3,153	26
Other comprehensive (loss) income	$ 78	(114)	193	$ 0	0	0	79	0				79	(1)
Shares repurchased (Note 23)	15,982,154			(210,173)					33,256,668	710,100	15,982,154			0
Shares repurchased (Note 23)	$ (1,105)	0	0		(442)	(47)	0	(616)				(1,105)	0
Dividends declared	(1,046)	0	0	$ 0	0	0	0	(1,046)				1,046	0
Effect of share-based compensation including issuance of common shares				4,424,437
Effect of share-based compensation including issuance of common shares	217	0	0	$ 4,424,437	226	(9)	0	0					0
Transfer of net actuarial gain on defined benefit plans	0	0	(95)	0	0	0	(95)	95				0	0
Transfer of net loss on cash flow hedges	(11)	0	(11)	0	0	0	(11)	0				(11)	0
Share Cancellation	0				0	0	0	0				0	0
Ending balance at Dec. 31, 2021	23,699	(176)	30		15,457	149	(146)	8,192				23,652	47
Non-controlling interest transactions	$ (16)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0				$ 0	$ (16)
Number of shares outstanding	557,492,516			557,492,516

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 499	$ 1,454
Receivables (Note 11)	5,366	3,626
Inventories (Note 12)	6,328	4,930
Prepaid expenses and other current assets	1,653	1,460
Current assets	13,846	11,470
Non-current assets
Property, plant and equipment (Note 13)	20,016	19,660
Goodwill (Note 14)	12,220	12,198
Other intangible assets (Note 14)	2,340	2,388
Investments (Note 15)	703	562
Other assets (Note 16)	829	914
TOTAL ASSETS	49,954	47,192
Current liabilities
Short-term debt (Note 17)	1,560	159
Current portion of long-term debt (Note 18)	545	14
Payables and accrued charges (Note 20)	10,052	8,058
Current portion of lease liabilities (Note 19)	286	249
Current liabilities	12,443	8,480
Non-current liabilities
Long-term debt (Note 18)	7,521	10,047
Lease liabilities (Note 19)	934	891
Deferred income tax liabilities (Note 8)	3,165	3,149
Pension and other post-retirement benefit liabilities (Note 21)	419	454
Asset retirement obligations and accrued environmental costs (Note 22)	1,566	1,597
Other non-current liabilities	207	171
TOTAL LIABILITIES	26,255	24,789
SHAREHOLDERS' EQUITY
Share capital (Note 23)	15,457	15,673
Contributed surplus	149	205
Accumulated other comprehensive loss	(146)	(119)
Retained earnings	8,192	6,606
TOTAL SHAREHOLDERS' EQUITY	23,699	22,403
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	49,954	47,192
Non-controlling interests	47	38
Equity attributable to owners of parent	$ 23,652	$ 22,365

Description of Business

Description of Business	12 Months Ended
Description of Business	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Description of Business	NOTE 1 DESCRIPTION OF BUSINESS Nutrien Ltd. (collectively with its subsidiaries, “Nutrien”, “we”, “us”, “our” or “the Company”) is the world’s largest provider of crop inputs and services. Nutrien plays a critical role in helping growers around the globe increase food production in a sustainable manner. The Company is a corporation organized under the laws of Canada with its registered head office located at Suite 1700, 211 19th Street East, Saskatoon, Saskatchewan, Canada, S7K 5R6. As at December 31, 2021, the Company had assets as follows: Segment Description Nutrien Ag Solutions (“Retail”) various retail facilities across the US, Canada, Australia and South America private label and proprietary crop protection products and nutritionals an innovative integrated digital platform for growers and crop consultants financing solutions provider in support of Nutrien’s agricultural product and service sales Potash 6 operations in the province of Saskatchewan Nitrogen 8 production facilities in North America: 4 in Alberta, 1 in Georgia, 1 in Louisiana, 1 in Ohio and 1 in Texas 1 large-scale operation in Trinidad 5 upgrade facilities in North America: 3 in Alberta, 1 in Missouri and 1 in Washington 50 percent investment in Profertil S.A. (“Profertil”), a nitrogen producer based in Argentina Phosphate 2 mines and processing plants: 1 in Florida and 1 in North Carolina phosphate feed plants in Illinois, Missouri and Nebraska 1 industrial phosphoric acid plant in Ohio Corporate and Others investment in Canpotex Limited (“Canpotex”), a Canadian potash export, sales and marketing company owned in equal shares by Nutrien and another potash producer 22 percent investment in Sinofert Holdings Limited (“Sinofert”), a fertilizer supplier and distributor in China

Basis of Presentation

Basis of Presentation	12 Months Ended
Basis of Presentation	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Basis of Presentation	NOTE 2 BASIS OF PRESENTATION We prepared these consolidated financial statements in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”). We have consistently applied the same accounting policies throughout all periods presented, as if these policies had always been in effect, with the exception of the accounting standards adopted effective January 1, 2021, as disclosed in Note 30. Certain immaterial 2020 figures have been reclassified in the consolidated statements of changes in shareholders’ equity and consolidated balance sheets. These consolidated financial statements were authorized for issue by the Board of Directors on February 17, 2022. Sensitivity analyses included throughout the notes should be used with caution as the changes are hypothetical and not reflective of future performance. The sensitivities have been calculated independently of changes in other key variables. Changes in one factor may result in changes in another, which could increase or reduce certain sensitivities. We prepared these consolidated financial statements under the historical cost basis, except for items that IFRS requires to be measured at fair value. Details of our accounting policies are primarily disclosed in Note 30. Reference to n/a indicates information is not applicable.

Segment Information

Segment Information	12 Months Ended
Segment Information	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Segment Information	NOTE 3 SEGMENT INFORMATION The Company has four reportable operating segments: Nutrien Ag Solutions (“Retail”), Potash, Nitrogen and Phosphate. The Retail segment distributes crop nutrients, crop protection products, seed and merchandise, and it provides services directly to growers through a network of farm centers in North America, South America and Australia. The Potash, Nitrogen and Phosphate segments are differentiated by the chemical nutrient contained in the products that each produces. The Executive Leadership Team (“ELT”), comprised of officers at the Executive Vice President level and above, is the Chief Operating Decision Maker (“CODM”). The CODM uses adjusted net earnings (loss) before finance costs, income taxes, and depreciation and amortization (“adjusted EBITDA”) to measure performance and allocate resources to the operating segments. The CODM considers adjusted EBITDA to be a meaningful measure because it is not impacted by long-term investment and financing decisions, but rather focuses on the performance of our day-to-day operations. In addition, it excludes the impact of impairments and other costs that are centrally managed by our corporate function. We determine the composition of the reportable segments based on factors including risks and returns, internal organization, and internal reports reviewed by the CODM. We allocate certain expenses across segments based on reasonable considerations such as production capacities or historical trends. Corporate 2021 Retail Potash Nitrogen Phosphate and Others Eliminations Consolidated Sales – third party 17,665 4,021 4,216 1,810 ‐ ‐ 27,712 – intersegment 69 386 921 236 ‐ (1,612) ‐ Sales – total 17,734 4,407 5,137 2,046 ‐ (1,612) 27,712 Freight, transportation and distribution ‐ 371 448 217 ‐ (185) 851 Net sales 17,734 4,036 4,689 1,829 ‐ (1,427) 26,861 Cost of goods sold 13,134 1,285 2,963 1,408 ‐ (1,338) 17,452 Gross margin 4,600 2,751 1,726 421 ‐ (89) 9,409 Selling expenses 3,124 9 24 6 (21) ‐ 3,142 General and administrative expenses 168 8 15 11 275 ‐ 477 Provincial mining taxes ‐ 466 ‐ ‐ ‐ ‐ 466 Share-based compensation expense ‐ ‐ ‐ ‐ 198 ‐ 198 Impairment of assets (Note 13) ‐ 7 22 4 ‐ ‐ 33 Other expenses (income) 86 22 (64) 15 253 ‐ 312 Earnings (loss) before finance costs and income taxes 1,222 2,239 1,729 385 (705) (89) 4,781 Depreciation and amortization 706 488 557 151 49 ‐ 1,951 EBITDA 1 1,928 2,727 2,286 536 (656) (89) 6,732 Integration and restructuring related costs 10 ‐ ‐ ‐ 33 ‐ 43 Share-based compensation expense ‐ ‐ ‐ ‐ 198 ‐ 198 Impairment of assets (Note 13) ‐ 7 22 4 ‐ ‐ 33 COVID-19 coronavirus pandemic ("COVID-19") related expenses ‐ ‐ ‐ ‐ 45 ‐ 45 Foreign exchange loss, net of related derivatives ‐ ‐ ‐ ‐ 39 ‐ 39 Cloud computing transition adjustment (Note 6) 1 2 ‐ ‐ 33 ‐ 36 Adjusted EBITDA 1,939 2,736 2,308 540 (308) (89) 7,126 Assets 22,387 13,148 11,093 1,699 2,266 (639) 49,954 1 EBITDA is calculated as net earnings (loss) before finance costs, income taxes, and depreciation and amortization. Corporate 2020 Retail Potash Nitrogen Phosphate and Others Eliminations Consolidated Sales – third party 14,748 2,265 2,572 1,241 82 1 ‐ 20,908 – intersegment 37 248 628 202 ‐ (1,115) ‐ Sales – total 14,785 2,513 3,200 1,443 82 (1,115) 20,908 Freight, transportation and distribution ‐ 367 460 241 ‐ (213) 855 Net sales 14,785 2,146 2,740 1,202 82 (902) 20,053 Cost of goods sold 11,049 1,183 2,265 1,166 74 (923) 14,814 Gross margin 3,736 963 475 36 8 21 5,239 Selling expenses 2,795 9 27 6 (24) ‐ 2,813 General and administrative expenses 135 7 8 10 269 ‐ 429 Provincial mining taxes ‐ 201 1 ‐ 2 ‐ 204 Share-based compensation expense ‐ ‐ ‐ ‐ 69 ‐ 69 Impairment of assets (Note 13) ‐ 23 27 769 5 ‐ 824 Other expenses (income) 44 8 (288) 6 228 ‐ (2) Earnings (loss) before finance costs and income taxes 762 715 700 (755) (541) 21 902 Depreciation and amortization 668 452 599 218 52 ‐ 1,989 EBITDA 1,430 1,167 1,299 (537) (489) 21 2,891 Integration and restructuring related costs ‐ ‐ 4 ‐ 56 ‐ 60 Share-based compensation expense ‐ ‐ ‐ ‐ 69 ‐ 69 Impairment of assets (Note 13) ‐ 23 27 769 5 ‐ 824 COVID-19 related expenses ‐ ‐ ‐ ‐ 48 ‐ 48 Foreign exchange loss, net of related derivatives ‐ ‐ ‐ ‐ 19 ‐ 19 Loss on disposal of business ‐ ‐ ‐ ‐ 6 ‐ 6 Net gain on disposal of investment in MOPCO (Note 6) ‐ ‐ (250) ‐ ‐ ‐ (250) Adjusted EBITDA 1,430 1,190 1,080 232 (286) 21 3,667 Assets 2 20,526 12,032 10,612 1,462 2,983 (423) 47,192 1 Primarily relates to our non-core Canadian business, which was sold in 2020. 2 In 2021, we reassessed the appropriate segment wherein certain assets related to transportation, distribution and logistics should be categorized. After our evaluation was complete, we determined the assets should be categorized in the Potash, Nitrogen and Phosphate segments. Our Retail segment primarily generates revenue from sales of the following: Crop nutrients Dry and liquid macronutrient products including potash, nitrogen and phosphate, proprietary liquid micronutrient products, and nutrient application services. Crop protection products Various third-party supplier and proprietary products designed to maintain crop quality and manage plant diseases, weeds and other pests. Seed Various third-party supplier seed brands and proprietary seed product lines. Merchandise Fencing, feed supplements, livestock-related animal health products, storage and irrigation equipment, and other products. Nutrien Financial Financing solutions provided to Retail branches and customers in support of Nutrien’s agricultural product and service sales. Services and other revenues Product application, soil and leaf testing, crop scouting and precision agriculture services, and water services. Products Sales prices impacted by Potash North American – primarily granular Offshore (international) – primarily granular and standard North American prices referenced at delivered prices (including transportation and distribution costs) International prices pursuant to term and spot contract prices (excluding transportation and distribution costs) Nitrogen Ammonia, urea, urea ammonium nitrate, industrial grade ammonium nitrate and ammonium sulfate Global energy costs and supply Phosphate Solid fertilizer, liquid fertilizer, industrial products and feed products Global prices and supplies of ammonia and sulfur 2021 2020 Retail sales by product line Crop nutrients 7,290 5,200 Crop protection products 6,333 5,602 Seed 2,008 1,790 Merchandise 1,033 943 Nutrien Financial 189 129 Services and other 1,051 1,241 Nutrien Financial elimination 1 (170) (120) 17,734 14,785 Potash sales by geography Manufactured product North America 2,009 1,275 Offshore 2 2,398 1,238 4,407 2,513 Nitrogen sales by product line Manufactured product Ammonia 1,556 779 Urea 1,568 1,040 Solutions, nitrates and sulfates 1,274 816 Other nitrogen and purchased products 739 565 5,137 3,200 Phosphate sales by product line Manufactured product Fertilizer 1,250 838 Industrial and feed 574 454 Other phosphate and purchased products 222 151 2,046 1,443 1 Represents elimination for the interest and service fees charged by Nutrien Financial to Retail branches. 2 Relates to Canpotex (Note 28) and includes other revenue representing provisional pricing adjustments of $ 282 (2020 – $ (32) ). Sales - Third Party 1 Non-Current Assets 2 2021 2020 2021 2020 United States 16,009 12,373 15,095 15,268 Canada 3,094 2,565 17,766 17,435 Australia 3,591 3,231 1,202 1,305 Canpotex (Note 28) 2,398 1,238 ‐ ‐ Trinidad 258 101 638 644 Brazil 567 284 391 284 Other 1,795 3 1,116 3 340 280 27,712 20,908 35,432 35,216 1 Sales by location of customers. 2 Excludes financial instruments (other than equity-accounted investees), deferred tax assets and post-employment benefit assets. 3 Other third-party sales primarily relate to Argentina of $ 526 (2020 – $ 372 ), Europe of $ 236 (2020 – $ 183 ) and Others of $ 1,033 (2020 – $ 561 ). Canpotex Sales by market (%) 2021 2020 Latin America 38 32 China 11 22 India 6 14 Other Asian markets 35 25 Other markets 10 7

Nature of Expenses

Nature of Expenses	12 Months Ended
Nature of Expenses	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Nature of Expenses	NOTE 4 NATURE OF EXPENSES 2021 2020 Purchased and produced raw materials and product for resale 1 14,711 12,110 Depreciation and amortization 1,951 1,989 Employee costs 2 3,007 2,450 Freight 1,023 963 Impairment of assets (Note 13) 33 824 Provincial mining taxes 3 466 204 Integration and restructuring related costs 43 60 Contract services 590 617 Lease expense 4 81 60 Fleet fuel, repairs and maintenance 302 222 COVID-19 related expenses (Note 6) 45 48 Cloud computing transition adjustment (Note 6) 36 ‐ Net gain on disposal of investment in MOPCO (Note 6) ‐ (250) Other 643 709 Total cost of goods sold and expenses 22,931 20,006 1 Significant expenses include: supplies, energy, fuel, purchases of raw material (natural gas – feedstock, sulfur, ammonia and reagents) and product for resale (crop nutrients and protection products, and seed). 2 Includes salaries and wages, employee benefits, and share-based compensation. 3 Includes Saskatchewan potash production tax, and Saskatchewan resource surcharge of $ 341 and $ 125 (2020 – $ 86 and $ 118 ), respectively, as required under Saskatchewan provincial legislation. 4 Includes lease expense relating to short-term leases, leases of low value and variable lease payments.

Share-Based Compensation

Share-Based Compensation	12 Months Ended
Share-Based Compensation	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Share-Based Compensation	NOTE 5 SHARE-BASED COMPENSATION We have share-based compensation plans for eligible employees and directors as part of their remuneration package, including Stock Options, Performance Share Units (“PSUs”), Restricted Share Units (“RSUs”) and Deferred Share Units (“DSUs”). Plans Eligibility Granted Vesting Period Maximum Term Settlement Stock Options Officers and eligible employees Annually 25 percent per year over four years 10 years Shares 1 PSUs Officers and eligible employees Annually On third anniversary of grant date based on total shareholder return over a three-year performance cycle, compared to average total shareholder return of a peer group of companies over the same period Not applicable Cash RSUs Eligible employees Annually On third anniversary of grant date and not subject to performance conditions Not applicable Cash DSUs Non-executive directors At the discretion of the Board of Directors Fully vest upon grant Not applicable Cash 2 Stock Appreciation Rights ("SARs") / Tandem Stock Appreciation Rights ("TSARs") 3 Awards no longer granted; legacy awards only Awards no longer granted; legacy awards only 25 percent per year over four years 10 years Cash 1 Stock options may also be settled by cash settlement or, if approved by the Company, by a broker-assisted "cashless exercise" arrangement or a “net exercise” arrangement. 2 Directors can redeem their DSUs for cash only when they leave the Board of Directors for an amount equal to the market value of the common shares at the time of redemption or as mandated by the Nutrien DSU Plan. 3 Holders of TSARs have the ability to choose between (a) receiving in cash the price of our shares on the date of exercise in excess of the exercise price of the right or (b) receiving common shares by paying the exercise price of the right. Our past experience and future expectation is that substantially all TSAR holders will elect to choose the first option. The weighted average fair value of stock options granted was estimated as of the date of the grant using the Black-Scholes-Merton option-pricing model. The weighted average grant date fair value of stock options per unit granted in 2021 was $ 11.77 (2020 – $ 7.18 ). The weighted average assumptions by year of grant that impacted current year results are as follows: Year of Grant Assumptions Based On 2021 2020 Exercise price per option Quoted market closing price of common shares on the last trading day immediately preceding the date of the grant 56.64 42.23 Expected annual dividend yield (%) Annualized dividend rate as of the date of the grant 3.22 4.36 Expected volatility (%) Historical volatility of Nutrien's shares over a period commensurate with the expected life of the grant 29 29 Risk-free interest rate (%) Zero-coupon government issues implied yield available on equivalent remaining term at the time of the grant 1.11 1.51 Average expected life of options (years) Historical experience 8.5 8.5 Number of Shares Subject to Option Weighted Average Exercise Price 2021 2020 2021 2020 Outstanding – beginning of year 10,997,892 9,191,480 53.59 56.88 Granted 1,518,490 2,293,802 56.62 42.23 Exercised (4,336,682) (123,403) 45.24 42.24 Forfeited or cancelled (375,005) (34,506) 50.34 57.45 Expired (1,059,975) (329,481) 85.66 75.92 Outstanding – end of year 6,744,720 10,997,892 54.87 53.59 The aggregate grant date fair value of all stock options granted in 2021 was $ 18 . The average share price in 2021 was $ 61.26 per share. The following table summarizes information about our stock options outstanding as at December 31, 2021, with expiry dates ranging from May 2022 to February 2031: Options Outstanding Options Exercisable Weighted Weighted Weighted Average Average Average Remaining Exercise Exercise Range of Exercise Prices Number Life in Years Price Number Price $37.84 to $41.77 564,087 4 39.01 564,087 39.01 $41.78 to $43.36 1,559,353 7 42.23 142,206 42.23 $43.37 to $50.22 1,049,233 5 45.40 820,061 45.65 $50.23 to $55.08 1,178,225 5 53.11 671,391 52.78 $55.09 to $67.05 1,295,328 8 55.62 ‐ 1 ‐ $67.06 to $109.45 1,098,494 2 89.85 1,098,494 89.85 6,744,720 5 54.87 3,296,239 60.55 1 Options granted in this range of exercise prices have not yet met the vesting period. Units Granted Units Outstanding Compensation Expense in 2021 as at December 31, 2021 2021 2020 Stock Options 1,518,490 6,744,720 14 14 PSUs 757,212 2,174,490 104 31 RSUs 537,867 1,447,292 47 22 DSUs 27,478 373,779 12 2 SARs/TSARs ‐ 504,217 21 ‐ 198 69

Other (Income) Expenses

Other (Income) Expenses	12 Months Ended
Other (Income) Expenses	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Other (Income) Expenses	NOTE 6 OTHER EXPENSES (INCOME) 2021 2020 Integration and restructuring related costs 43 60 Foreign exchange loss, net of related derivatives 42 18 Earnings of equity-accounted investees (89) (73) Bad debt expense 26 6 COVID-19 related expenses (Note 30) 45 48 Cloud computing transition adjustment 36 ‐ Loss on disposal of business ‐ 6 Net gain on disposal of investment in MOPCO ‐ (250) Other expenses 209 183 312 (2) In 2021, the IFRS Interpretations Committee published a final agenda decision that clarified how to recognize certain configuration and customization expenditures related to cloud computing with retrospective application. Costs that do not meet the capitalization criteria should be expensed as incurred. We changed our accounting policy to align with the interpretation and previously capitalized costs that no longer qualify for capitalization were expensed in the current period since they were not material. In 2020, as a result of a strategic decision, we disposed our equity-accounted investment in MOPCO, a nitrogen producer based in Egypt. We received cash consideration of $ 540 for the disposal of the investment and settlement of legal claims that resulted in a gain of $ 250 .

Finance Costs

Finance Costs	12 Months Ended
Finance Costs	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Finance Costs	NOTE 7 FINANCE COSTS 2021 2020 Interest expense Short-term debt 60 50 Long-term debt 415 392 Lease liabilities (Note 19) 33 34 COVID-19 related ‐ 19 Loss on early extinguishment of debt (Note 18) 142 ‐ Unwinding of discount on asset retirement obligations (Note 22) (9) 33 Interest on net defined benefit pension and other post-retirement plan obligations (Note 21) 9 13 Borrowing costs capitalized to property, plant and equipment (29) (20) Interest income (8) (1) 613 520 Borrowing costs capitalized to property, plant and equipment in 2021 were calculated by applying an average capitalization rate of 4.1 percent (2020 – 3.9 percent) to expenditures on qualifying assets.

Income Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Income Taxes	NOTE 8 INCOME TAXES Income Taxes Included in Net Earnings We operate in a specialized industry and in several tax jurisdictions; as a result, our earnings are subject to various rates of taxation. 2021 2020 Current income tax Tax expense (recovery) for current year 1,033 (38) Adjustments in respect of prior years (13) (30) Total current income tax expense (recovery) 1,020 (68) Deferred income tax Origination and reversal of temporary differences (30) 72 Adjustments in respect of prior years 6 (58) Change in recognition of tax losses and deductible temporary differences (6) (20) Impact of tax rate changes (1) (3) Total deferred income tax recovery (31) (9) Income tax expense (recovery) included in net earnings 989 (77) The provision for income taxes differs from the amount that would have resulted from applying the Canadian statutory income tax rates to earnings (loss) before income taxes as follows: 2021 2020 Earnings (loss) before income taxes Canada 1,884 525 United States 1,319 (506) Trinidad 256 (44) Australia 204 83 Other 505 324 4,168 382 Canadian federal and provincial statutory income tax rate (%) 27 27 Income tax at statutory rates 1,125 103 Adjusted for the effect of: Impact of foreign tax rates (98) (18) Production-related deductions (24) (12) Non-taxable income (18) (59) Change in recognition of tax losses and deductible temporary differences (6) (20) Recovery of prior year taxes due to US legislative changes (4) (94) Non-deductible expenses 12 13 Foreign accrual property income 2 7 Other ‐ 3 Income tax expense (recovery) included in net earnings 989 (77) Deferred Income Taxes In respect of each type of temporary difference, unused tax loss and unused tax credit, the amounts of deferred tax assets and liabilities recognized in the consolidated balance sheets as at December 31 and the amount of the deferred tax (recovery) expense recognized in net earnings were: Deferred Income Tax (Recovery) Deferred Income Tax (Assets) Expense Recognized Liabilities in Net Earnings 2021 2020 2021 2020 Deferred income tax assets Asset retirement obligations and accrued environmental costs (354) (376) 21 20 Tax loss and other carryforwards (297) (370) 75 (98) Pension and other post-retirement benefit liabilities (178) (161) (45) (12) Lease liabilities (151) (201) 47 26 Long-term debt (140) (102) (39) 3 Inventories (126) (37) (90) 20 Receivables (44) (50) 6 2 Payables and accrued charges (14) ‐ (14) 25 Other assets (1) (12) 11 17 Deferred income tax liabilities Property, plant and equipment 3,765 3,637 132 (12) Goodwill and other intangible assets 404 471 (64) (67) Payables and accrued charges ‐ 72 (72) 72 Other liabilities 39 36 1 (5) 2,903 2,907 ( 31 ) (9) Reconciliation of net deferred income tax liabilities: 2021 2020 Balance – beginning of year 2,907 2,896 Income tax recovery recognized in net earnings (31) (9) Income tax charge recognized in other comprehensive income ("OCI") 30 17 Other (3) 3 Balance – end of year 2,903 2,907 Amounts and expiry dates of unused tax losses and unused tax credits as at December 31, 2021, were: Amount Expiry Date Unused federal operating losses 1,206 2022 – Indefinite Unused federal capital losses 589 Indefinite Unused investment tax credits 22 2022 – 2040 The unused tax losses and credits with no expiry dates can be carried forward indefinitely. As at December 31, 2021, we had $ 742 of federal tax losses for which we did not recognize deferred tax assets. We have determined that it is probable that all recognized deferred tax assets will be realized through a combination of future reversals of temporary differences and taxable income. We did not recognize deferred tax liabilities related to temporary differences associated with investments in subsidiaries and equity-accounted investees amounting to $ 10,241 as at December 31, 2021 (2020 – $ 8,911 ). In 2021, previously unrecognized operating losses were recognized due to a revised estimate of future taxable profits resulting in an increase in deferred tax assets of $ 6 . In 2020, previously unrecognized capital losses were utilized primarily as a result of the net gain on disposal of investment in MOPCO. In addition, as a result of the non-cash impairment of assets relating to our property, plant and equipment at White Springs, management revised its estimate of future taxable profits and derecognized deferred tax assets related to Florida tax losses and deductible temporary differences. In aggregate, the net decrease in unrecognized deferred tax assets in 2020 was $ 20 .

Net Earnings per Share

Net Earnings per Share	12 Months Ended
Net Earnings per Share	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Net Earnings per Share	NOTE 9 NET EARNINGS PER SHARE 2021 2020 Weighted average number of common shares 569,664,000 569,657,000 Dilutive effect of stock options 1,625,000 29,000 Weighted average number of diluted common shares 571,289,000 569,686,000 Options excluded from the calculation of diluted net earnings per share due to the option exercise prices being greater than the average market price of common shares were as follows: 2021 2020 Number of options excluded 2,393,822 9,875,797 Performance option plan years fully excluded 1 2012 - 2015 2011 – 2017 Stock option plan years fully excluded 2021 2015, 2017 – 2020 1 Previously granted under a legacy long-term incentive plan.

Financial Instruments and Relat

Financial Instruments and Related Risk Management	12 Months Ended
Financial Instruments and Related Risk Management	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Financial Instruments and Related Risk Management	NOTE 10 FINANCIAL INSTRUMENTS AND RELATED RISK MANAGEMENT Our ELT, along with the Board of Directors (including Board of Directors committees), is responsible for monitoring our risk exposures and managing our policies to address these risks. Our strategic and risk management processes are integrated to ensure we understand the benefit from the relationship between strategy, risk and value creation. Outlined below are our risk management strategies we have developed to mitigate the financial market risks that we are exposed to. Credit Risk Risk Management Strategies Receivables from customers establish credit approval policies and procedures for new and existing customers extend credit to qualified customers through: review of credit agency reports, financial statements and/or credit references, as available review of existing customer accounts every 12 to 24 months based on the credit limit amounts evaluation of customer and country risk for international customers establish credit period: 15 and 30 days for wholesale fertilizer customers 30 days for industrial and feed customers 30 to 360 days for Retail customers, including Nutrien Financial up to 180 days for select export sales customers, including Canpotex transact on a cash basis with certain customers who may not meet specified benchmark creditworthiness or cannot provide other evidence of ability to pay execute agency arrangements with financial institutions or other partners with which we have only a limited recourse involvement sell receivables to financial institutions which substantially transfer the risks and rewards set eligibility requirements for Nutrien Financial to limit the risk of the receivables may require security over certain crop or livestock inventories set up provision using the lifetime expected credit loss method considering all possible default events over the expected life of a financial instrument. Receivables are grouped based on days past due and/or customer credit risk profile. Estimated losses on receivables are based on known troubled accounts and historical experience of losses incurred. Receivables are considered to be in default and are written off against the allowance when it is probable that all remaining contractual payments due will not be collected in accordance with the terms of the agreement. Cash and cash equivalents and other receivables require acceptable minimum counterparty credit ratings limit counterparty or credit exposure select counterparties with investment-grade quality Maximum exposure to credit risk as at December 31: 2021 2020 Cash and cash equivalents 499 1,454 Receivables (excluding income tax receivable) 5,143 3,543 5,642 4,997 Risk Risk Management Strategies Liquidity establish an external borrowing policy to maintain sufficient liquid financial resources to fund our operations and meet our commitments and obligations in a cost-effective manner maintain an optimal capital structure maintain investment-grade credit ratings that provide ease of access to the debt capital and commercial paper markets maintain sufficient short-term credit availability uphold long-term relationships with a sufficient number of high-quality and diverse lenders Refer to Note 17 for our available credit facilities. The following maturity analysis of our financial liabilities and gross settled derivative contracts (for which the cash flows are settled simultaneously) is based on the expected undiscounted contractual cash flows from the date of the consolidated balance sheets to the contractual maturity date. Carrying Amount Contractual of Liability as at Cash Within 1 to 3 3 to 5 Over 5 2021 December 31 Flows 1 Year Years Years Years Short-term debt 1 1,560 1,560 1,560 ‐ ‐ ‐ Payables and accrued charges 2 8,861 8,861 8,861 ‐ ‐ ‐ Long-term debt, including current portion 1 8,066 13,071 890 1,163 1,678 9,340 Lease liabilities, including current portion 1 1,220 1,375 313 423 227 412 Derivatives 20 20 20 ‐ ‐ ‐ 19,727 24,887 11,644 1,586 1,905 9,752 1 Contractual cash flows include contractual interest payments related to debt obligations and lease liabilities. Interest rates on debt with variable rates are based on the prevailing rates as at December 31, 2021. 2 Excludes non-financial liabilities and includes payables of approximately $ 1.7 billion related to our prepaid inventory to secure product discounts. We consider these payables to be part of our working capital. For these payables, we participated in arrangements where the vendors sold their right to receive payment to financial institutions without extending the original payment terms. These payables were paid in January 2022. Foreign Exchange Risk Risk Management Strategies Foreign currency denominated accounts execute foreign currency derivative contracts within certain prescribed limits for both forecast operating and capital expenditures to manage the earnings impact, including those related to our equity-accounted investees, that could occur from a reasonably possible strengthening or weakening of the US dollar The fair value of our net foreign exchange currency derivative assets (liabilities) at December 31, 2021 was $ 1 (2020 – $ 14 ). The following table presents the significant foreign currency derivatives that existed at December 31: 2021 2020 Average Average contract contract Sell/buy Notional Maturities rate Notional Maturities rate Derivatives not designated as hedges Forwards USD/CAD 1 522 2022 1.2799 514 2021 1.2796 CAD/USD ‐ 2022 ‐ 126 2021 1.2804 USD/AUD 2 19 2022 1.3841 28 2021 1.3661 AUD/USD 113 2022 1.3860 92 2021 1.3640 BRL 3 /USD 135 2022 5.4519 31 2021 4.2879 Options USD/CAD - buy USD puts 20 2022 1.2500 70 2021 1.3147 USD/CAD - sell USD calls 20 2022 1.2600 55 2021 1.3665 AUD/USD - buy USD calls 71 2022 1.4060 61 2021 1.3216 AUD/USD - sell USD puts 72 2022 1.3797 ‐ ‐ ‐ Derivatives designated as hedges Forwards USD/CAD 343 2022 1.2547 254 2021 1.3190 1 Canadian dollars 2 Australian dollars 3 Brazilian real Market Risks Type Risk Management Strategies Interest rate Short-term and long-term debt use a portfolio of fixed and floating rate instruments align current and long-term assets with demand and fixed-term debt monitor the effects of market changes in interest rates use interest rate swaps, if desired We do not believe we have material exposure to interest or price risk on our financial instruments as at December 31, 2021 and 2020. Price Natural gas derivative instruments diversify our forecast gas volume requirements, including a portion of annual requirements purchased at spot market prices, a portion at fixed prices (up to 10 years) and a portion indexed to the market price of ammonia acquire a reliable supply of natural gas feedstock and fuel on a location-adjusted, cost-competitive basis Price Investment at fair value ensure the security of principal amounts invested provide for an adequate degree of liquidity achieve a satisfactory return In 2020, we entered into cash flow hedges on our interest rate derivative contracts that matured in the same year and had a total notional amount of $ 680 . Fair Value Financial instruments included in the consolidated balance sheets are measured either at fair value or amortized cost. The following tables explain the valuation methods used to determine the fair value of each financial instrument and its associated level in the fair value hierarchy. Financial Instruments at Fair Value Fair Value Method Cash and cash equivalents Carrying amount (approximation to fair value assumed due to short-term nature) Equity securities Closing bid price of the common shares as at the balance sheet date Debt securities Closing bid price of the debt or other instruments with similar terms and credit risk (Level 2) as at the balance sheet date Foreign currency derivatives not traded in an active market Quoted forward exchange rates (Level 2) as at the balance sheet date Foreign exchange forward contracts, swaps and options and natural gas swaps not traded in an active market Based on a discounted cash flow model. Inputs included contractual cash flows based on prices for natural gas futures contracts, fixed prices and notional volumes specified by the swap contracts, the time value of money, liquidity risk, our own credit risk (related to instruments in a liability position) and counterparty credit risk (related to instruments in an asset position). Futures contract prices used as inputs in the model were supported by prices quoted in an active market and therefore categorized in Level 2. Financial Instruments at Amortized Cost Fair Value Method Receivables, short-term debt and payables and accrued charges Carrying amount (approximation to fair value assumed due to short-term nature) Long-term debt Quoted market prices (Level 1 or 2 depending on the market liquidity of the debt) Other long-term debt instruments Carrying amount The following table presents our fair value hierarchy for financial instruments carried at fair value on a recurring basis or measured at amortized cost and require fair value disclosure: 2021 2020 Carrying Carrying Financial assets (liabilities) measured at Amount Level 1 Level 2 Level 3 Amount Level 1 Level 2 Fair value on a recurring basis 1 Cash and cash equivalents 499 ‐ 499 ‐ 1,454 ‐ 1,454 Derivative instrument assets 19 ‐ 19 ‐ 45 ‐ 45 Other current financial assets – marketable securities 2 134 19 115 ‐ 161 24 137 Investments at fair value through other comprehensive income ("FVTOCI") (Note 15) 244 234 ‐ 10 153 153 ‐ Derivative instrument liabilities (20) ‐ (20) ‐ (48) ‐ (48) Amortized cost Current portion of long-term debt Notes and debentures (500) (506) ‐ ‐ ‐ ‐ ‐ Fixed and floating rate debt (45) ‐ (45) ‐ (14) ‐ (14) Long-term debt Notes and debentures (7,424) (4,021) (4,709) ‐ (9,994) (3,801) (7,955) Fixed and floating rate debt (97) ‐ (97) ‐ (53) ‐ (53) 1 During 2021 and 2020, there were no transfers between levelling for financial instruments measured at fair value on a recurring basis. Our policy is to recognize transfers at the end of the reporting period. 2 Marketable securities consist of equity and fixed income securities.

Receivables

Receivables	12 Months Ended
Receivables	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Receivables	NOTE 11 RECEIVABLES Segment 2021 2020 Receivables from customers Third parties Retail (Nutrien Financial) 1 2,178 1,417 Retail 977 1,158 Potash, Nitrogen, Phosphate 804 391 Related party - Canpotex Potash (Note 28) 828 122 Less allowance for expected credit losses of receivables from customers (82) (69) 4,705 3,019 Rebates 222 256 Income taxes (Note 8) 223 83 Other receivables 216 268 5,366 3,626 1 Includes $ 1,792 of very low risk of default and $ 386 of low risk of default (2020 - $ 1,147 of very low risk of default and $ 270 of low risk of default). Qualifying receivables from customers financed by Nutrien Financial represents high-quality receivables from customers that have been rated very low to low risk of default among Retail’s receivables from customers. Customer credit with a financial institution of $ 405 at December 31, 2021, related to our agency agreement, is not recognized in our consolidated balance sheets. Through the agency agreement, we only have a limited recourse involvement to the extent of an indemnification of the financial institution to a maximum of 5 percent (2020 – 5 percent) of the qualified customer loans. Historical indemnification losses on this arrangement have been negligible, and the average aging of the customer loans with the financial institution is current.

Inventories

Inventories	12 Months Ended
Inventories	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Inventories	NOTE 12 INVENTORIES 2021 2020 Product purchased for resale 4,889 3,655 Finished products 410 384 Intermediate products 206 227 Raw materials 337 215 Materials and supplies 486 449 6,328 4,930 Inventories expensed to cost of goods sold during the year were $ 17,243 (2020 – $ 14,347 ).

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
Property, Plant and Equipment	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Property, Plant and Equipment	NOTE 13 PROPERTY, PLANT AND EQUIPMENT The majority of our tangible assets are buildings, machinery and equipment used to produce or distribute our products and render our services. Right-of-use (“ROU”) assets primarily include railcars, marine vessels, real estate and mobile equipment. Machinery Mine Land and Buildings and and Development Assets Under Improvements Improvements Equipment Costs Construction Total Useful life range (years) 4 – 85 1 – 65 1 – 80 1 – 60 n/a Carrying amount – December 31, 2020 1,090 6,305 10,336 723 1,206 19,660 Acquisitions (Note 25) 2 3 5 ‐ ‐ 10 Additions 7 18 97 ‐ 1,646 1,768 Additions – ROU assets ‐ 140 238 ‐ ‐ 378 Disposals (29) (21) (35) ‐ (1) (86) Transfers 38 142 874 145 (1,199) ‐ Foreign currency translation and other 2 (34) (41) 55 (83) (101) Depreciation (35) (191) (991) (70) ‐ (1,287) Depreciation – ROU assets (2) (57) (248) ‐ ‐ (307) Impairment ‐ ‐ (14) ‐ (5) (19) Carrying amount – December 31, 2021 1,073 6,305 10,221 853 1,564 20,016 Balance – December 31, 2021 comprised of: Cost 1,547 8,584 20,627 2,496 1,564 34,818 Accumulated depreciation and impairments (474) (2,279) (10,406) (1,643) ‐ (14,802) Carrying amount – December 31, 2021 1,073 6,305 10,221 853 1,564 20,016 Balance – December 31, 2021 comprised of: Owned property, plant and equipment 1,044 5,930 9,517 853 1,564 18,908 ROU assets 29 375 704 ‐ ‐ 1,108 Carrying amount – December 31, 2021 1,073 6,305 10,221 853 1,564 20,016 Carrying amount – December 31, 2019 1,160 6,409 10,641 747 1,378 20,335 Acquisitions (Note 25) 8 27 42 ‐ ‐ 77 Additions 25 91 224 1 1,077 1,418 Additions – ROU assets ‐ 24 299 ‐ ‐ 323 Disposals (5) (9) (34) ‐ ‐ (48) Transfers 46 58 923 164 (1,191) ‐ Foreign currency translation and other (15) ‐ 30 30 (10) 35 Depreciation (39) (198) (1,060) (82) ‐ (1,379) Depreciation – ROU assets (2) (55) (222) ‐ ‐ (279) Impairment (88) (42) (507) (137) (48) (822) Carrying amount – December 31, 2020 1,090 6,305 10,336 723 1,206 19,660 Balance – December 31, 2020 comprised of: Cost 1,530 8,377 19,730 2,279 1,206 33,122 Accumulated depreciation and impairments (440) (2,072) (9,394) (1,556) ‐ (13,462) Carrying amount – December 31, 2020 1,090 6,305 10,336 723 1,206 19,660 Balance – December 31, 2020 comprised of: Owned property, plant and equipment 1,061 5,986 9,665 723 1,206 18,641 ROU assets 29 319 671 ‐ ‐ 1,019 Carrying amount – December 31, 2020 1,090 6,305 10,336 723 1,206 19,660 Depreciation of property, plant and equipment was included in the following: 2021 2020 Freight, transportation and distribution 133 138 Cost of goods sold 1,052 1,111 Selling expenses 416 393 General and administrative expenses 36 56 Depreciation recorded in earnings 1,637 1,698 Depreciation recorded in inventory 112 132 Impairment In 2020, we recorded the following impairments: Cash-generating units ("CGUs") Aurora White Springs Segment Phosphate Impairment indicator Lower long-term forecasted global phosphate prices Pre-tax impairment loss ($) 545 215 Pre-tax recoverable amount ($) n/a 160 Post-tax recoverable amount ($) 995 n/a Valuation technique Fair value less costs of disposal ("FVLCD") a Level 3 measurement Value in use ("VIU") Key assumptions End of mine life (proven and probable reserves) (year) 2050 2029 Pre-tax discount rate (%) n/a 16.0 Post-tax discount rate (%) 10.5 12.0 For our Aurora CGU, the recoverable amount was based on after-tax discounted cash flows (using a five-year projection and a terminal year thereafter to the expected mine life), which incorporated assumptions an independent market participant would apply. For our White Springs CGU, the recoverable amount was based on pre-tax discounted cash flows until the end of the mine life. There were no reversals of impairment in 2021.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
Goodwill and Other Intangible Assets	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Goodwill and Other Intangible Assets	NOTE 14 GOODWILL AND OTHER INTANGIBLE ASSETS Other Intangibles Customer Trade Goodwill Relationships 2 Technology Names Other Total Useful life range (years) n/a 5 – 15 2 – 24 1 – 20 ³ 1 – 30 Carrying amount – December 31, 2020 12,198 1,515 437 75 361 2,388 Acquisitions (Note 25) 77 16 ‐ ‐ ‐ 16 Additions – internally developed ‐ ‐ 118 19 9 146 Foreign currency translation and other (49) (15) 143 (3) 13 138 Disposals (6) ‐ ‐ ‐ ‐ ‐ Cloud computing transition adjustment (Note 6) ‐ ‐ (34) ‐ ‐ (34) Amortization 1 ‐ (166) (69) (11) (68) (314) Carrying amount – December 31, 2021 12,220 1,350 595 80 315 2,340 Balance – December 31, 2021 comprised of: Cost 12,227 1,961 808 127 619 3,515 Accumulated amortization and impairment (7) (611) (213) (47) (304) (1,175) Carrying amount – December 31, 2021 12,220 1,350 595 80 315 2,340 Carrying amount – December 31, 2019 11,986 1,584 351 62 431 2,428 Acquisitions (Note 25) 167 74 2 8 6 90 Additions – internally developed ‐ ‐ 106 ‐ 16 122 Foreign currency translation and other 45 22 20 14 (22) 34 Disposals ‐ ‐ (3) ‐ ‐ (3) Amortization 1 ‐ (165) (39) (9) (70) (283) Carrying amount – December 31, 2020 12,198 1,515 437 75 361 2,388 Balance – December 31, 2020 comprised of: Cost 12,205 1,971 544 111 597 3,223 Accumulated amortization and impairment (7) (456) (107) (36) (236) (835) Carrying amount – December 31, 2020 12,198 1,515 437 75 361 2,388 1 Amortization of $ 260 was included in selling expenses during the year ended December 31, 2021 (2020 – $ 254 ). 2 The average remaining amortization period of customer relationships as at December 31, 2021, was approximately 5 years. 3 Certain trade names have indefinite useful lives as there are no regulatory, legal, contractual, cooperative, economic or other factors that limit their useful lives. Goodwill Impairment Testing We performed our annual impairment test on goodwill and did not identify any impairment; however, the recoverable amount for Retail – North America did not substantially exceed its carrying amount. In testing for impairment of goodwill, we calculate the recoverable amount for a CGU or groups of CGUs containing goodwill. We used the FVLCD methodology based on after-tax discounted cash flows (five-year projections and a terminal year thereafter) and incorporated assumptions an independent market participant would apply including considerations related to climate-change initiatives. We adjusted discount rates for each CGU or group of CGUs for the risk associated with achieving our forecasts (five-year projections) and for the country risk premium in which we expect to generate cash flows. FVLCD is a Level 3 measurement. We use our market capitalization and comparative market multiples to corroborate discounted cash flow results. The key assumptions with the greatest influence on the calculation of the recoverable amounts are the discount rates, terminal growth rates and cash flow forecasts. The key forecast assumptions were based on historical data and estimates of future results from internal sources as well as industry and market trends. Terminal Growth Rate (%) Discount Rate (%) 2021 2020 2021 2020 Retail – North America 2.5 2.5 7.4 7.5 Retail – International 1 2.0 - 6.2 2.0 8.0 - 15.5 7.8 - 16.0 Potash 2.5 2.5 7.7 8.0 Nitrogen 2.0 2.0 7.8 8.0 1 The discount rates reflect the country risk premium and size for our international groups of CGUs. The Retail – North America group of CGUs recoverable amount exceeds its carrying amount by $ 1.5 billion, which is 12 percent of the carrying amount. Goodwill is more susceptible to impairment risk if business operating results or economic conditions deteriorate and we do not meet our forecasts. A reduction in the terminal growth rate, an increase in the discount rate or a decrease in forecasted EBITDA could cause impairment in the future. The following table indicates the percentage by which key assumptions would need to change individually for the estimated recoverable amount to be equal to the carrying amount: Change Required for Carrying Amount to Equal Value Used in Impairment Key Assumptions Recoverable Amount Model Terminal growth rate (%) 0.8 percentage point decrease 2.5 Forecasted EBITDA over forecast period (in billions of US dollars) 9.8 percent decrease 6.8 Discount rate (%) 0.6 percentage point increase 7.4

Investments

Investments	12 Months Ended
Investments	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Investments	NOTE 15 INVESTMENTS Principal Place Proportion of Ownership Interest of Business and and Voting Rights Held (%) Carrying Amount Name Principal Activity Incorporation 2021 2020 2021 2020 Equity-accounted investees Profertil Nitrogen Producer Argentina 50 50 277 233 Canpotex Marketing and Logistics Canada 50 50 ‐ ‐ Other associates and joint ventures 182 176 Total equity-accounted investees 459 409 Investments at FVTOCI Sinofert Fertilizer Supplier and Distributor China/Bermuda 22 22 234 153 Other 10 ‐ Total investments at FVTOCI 244 153 Total investments 703 562 We continuously assess our ability to exercise significant influence or joint control over our investments. Our 22 percent ownership in Sinofert does not constitute significant influence as we do not have any representation on the board of directors of Sinofert. We elected to account for our investment in Sinofert as FVTOCI as it is held for strategic purposes. Future conditions related to Profertil may be affected by political, economic and social instability. We are exposed to foreign exchange risk related to fluctuations in the Argentine peso against the US dollar. This may also restrict our ability to obtain dividends from Profertil.

Other Assets

Other Assets	12 Months Ended
Other Assets	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Other Assets	NOTE 16 OTHER ASSETS 2021 2020 Deferred income tax assets (Note 8) 262 242 Ammonia catalysts – net of accumulated amortization of $85 (2020 – $76) 88 89 Long-term income tax receivable (Note 8) 166 305 Accrued pension benefit assets (Note 21) 170 109 Other 143 169 829 914

Short-Term Debt

Short-Term Debt	12 Months Ended
Short-Term Debt	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Short-Term Debt	NOTE 17 SHORT-TERM DEBT We use our $4.5 billion commercial paper program for our short-term cash requirements. The commercial paper program is backstopped by the $4.5 billion unsecured revolving term credit facility (“Nutrien Credit Facility”). Credit facilities are renegotiated periodically. Rate of Interest (%) 2021 2020 Other credit facilities 1 0.8 - 13.1 313 159 Commercial paper 2 0.3 - 0.4 1,170 ‐ Other short-term debt 77 ‐ 1,560 159 1 Credit facilities are unsecured and consist of South American facilities with debt of $ 74 (2020 – $ 109 ) and interest rates ranging from 1.8 percent to 13.1 percent, Australian facilities with debt of $ 211 (2020 – $ 19 ) and interest rates ranging from 0.8 percent to 0.9 percent, and other facilities with debt of $ 28 (2020 – $ 31 ) and an interest rate of 1.4 percent. 2 The amount available under the commercial paper program is limited to the availability of backup funds under the Nutrien Credit Facility and excess cash invested in highly liquid securities Credit facilities Total Facility Limit as at December 31, 2021 Total Facility Limit as at December 31, 2020 Nutrien Credit Facility 1 4,500 4,500 Uncommitted revolving demand facility 500 500 Other credit facilities 2 720 740 1 In 2021, we extended the maturity date from April 10, 2023 to June 4, 2026, subject to extension at the request of Nutrien provided that the resulting maturity date shall not exceed five years from the date of request. 2 Total facility limit amounts include some facilities with maturities in excess of one year. Principal covenants and events of default under the Nutrien Credit Facility include a debt to capital ratio (refer to Note 24) and other customary events of default and covenant provisions. Non-compliance with such covenants could result in accelerated repayment and/or termination of the credit facility. We were in compliance with all covenants as at December 31, 2021. In 2020, we entered into new committed revolving credit facilities totaling approximately $ 1,500 , all with the same principal covenants and events of default as our existing credit facilities. We closed these credit facilities after the issuance of the new notes in 2020.

Long-Term Debt

Long-Term Debt	12 Months Ended
Long-Term Debt	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Long-Term Debt	NOTE 18 LONG-TERM DEBT We source our borrowings for funding purposes primarily through notes, debentures and long-term credit facilities. We have access to the capital markets through our base shelf prospectus. Rate of Interest (%) Maturity 2021 2020 Notes 1 3.150 October 1, 2022 500 500 1.900 May 13, 2023 500 500 3.500 June 1, 2023 ‐ 500 3.625 March 15, 2024 ‐ 750 3.375 March 15, 2025 ‐ 550 3.000 April 1, 2025 500 500 4.000 December 15, 2026 500 500 4.200 April 1, 2029 750 750 2.950 May 13, 2030 500 500 4.125 March 15, 2035 450 450 7.125 May 23, 2036 212 300 5.875 December 1, 2036 500 500 5.625 December 1, 2040 500 500 6.125 January 15, 2041 401 500 4.900 June 1, 2043 500 500 5.250 January 15, 2045 489 500 5.000 April 1, 2049 750 750 3.950 May 13, 2050 500 500 Debentures 1 7.800 February 1, 2027 120 125 Other credit facilities 2 Various Various 141 67 7,813 9,742 Add net unamortized fair value adjustments 325 404 Less net unamortized debt issue costs (72) (85) 8,066 10,061 Less current maturities (545) (14) 7,521 10,047 1 Each series of notes and debentures is unsecured and has no sinking fund requirements prior to maturity. Each series is redeemable and has various provisions that allow redemption prior to maturity, at our option, at specified prices. 2 Other credit facilities are unsecured and consist of South American facilities with debt of $ 137 (2020 – $ 63 ) and interest rates ranging from 1.9 percent to 12.2 percent and other facilities with debt of $ 4 (2020 – $ 4 ) and an interest rate of 3.9 percent. In 2021, we redeemed the entire outstanding principal amount of these notes in accordance with the optional redemption provisions provided in the indenture governing these notes: Rate of interest (%) Maturity Redeemed Notes 3.500 June 1, 2023 500 Notes 3.625 March 15, 2024 750 Notes 3.375 March 15, 2025 550 Principal amount 1,800 Add net unamortized fair value adjustments 5 Less net unamortized debt issue costs (5) Carrying amount 1,800 We also completed a cash tender offer to purchase the following debentures and notes, up to a maximum aggregate purchase price of $ 300 : Rate of interest (%) Maturity Redeemed Debentures 7.800 February 1, 2027 5 Notes 7.125 May 23, 2036 88 Notes 6.125 January 15, 2041 99 Notes 5.250 January 15, 2045 11 Principal amount 203 Add net unamortized fair value adjustments 53 Carrying amount 256 The redemption and cash tender offers were funded by using cash on hand and proceeds from the issuance of commercial paper. The total cash spend, including accrued interest, was $ 2.2 billion. As a result of the early extinguishment of debt, we recorded a loss on extinguishment of debt of $ 142 (Note 7). We are subject to certain customary covenants including limitation on liens, merger and change of control covenants, and customary events of default. As calculated in Note 24, we were in compliance with these covenants as at December 31, 2021. Short-Term Long-Term Lease Debt Debt Liabilities Total Balance – December 31, 2020 159 10,061 1,140 11,360 Cash flows (cash inflows and outflows presented on a net basis) 1,344 (2,133) (320) (1,109) Loss on early extinguishment of debt ‐ 142 ‐ 142 Additions and other adjustments to ROU assets ‐ ‐ 408 408 Foreign currency translation and other non-cash changes 57 (4) (8) 45 Balance – December 31, 2021 1,560 8,066 1,220 10,846 Balance – December 31, 2019 976 9,055 1,073 11,104 Cash flows (cash inflows and outflows presented on a net basis) (892) 1,017 (274) (149) Additions and other adjustments to ROU assets ‐ ‐ 320 320 Foreign currency translation and other non-cash changes 75 (11) 21 85 Balance – December 31, 2020 159 10,061 1,140 11,360

Lease Liabilities

Lease Liabilities	12 Months Ended
Lease Liabilities	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Lease Liabilities	NOTE 19 LEASE LIABILITIES Average Rate of Interest (%) 2021 2020 Lease liabilities - non-current 2.9 934 891 Current portion of lease liabilities 2.5 286 249 Total 1,220 1,140

Payables and Accrued Charges

Payables and Accrued Charges	12 Months Ended
Payables and Accrued Charges	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Payables and Accrued Charges	NOTE 20 PAYABLES AND ACCRUED CHARGES Payables and accrued charges consist primarily of amounts we owe to suppliers and prepayments made by customers planning to purchase our products for the upcoming growing season. 2021 2020 Trade and other payables 5,179 4,415 Customer prepayments 2,083 1,800 Dividends 257 256 Accrued compensation 669 513 Current portion of asset retirement obligations and accrued environmental costs (Note 22) 170 162 Accrued interest 80 99 Current portion of share-based compensation (Note 5) 185 95 Current portion of derivatives 20 39 Income taxes (Note 8) 606 48 Current portion of pension and other post-retirement benefits (Note 21) 16 15 Other accrued charges and others 787 616 10,052 8,058

Pension and Other Post-Retireme

Pension and Other Post-Retirement Benefits	12 Months Ended
Pension and Other Post-Retirement Benefits	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Pension and Other Post-Retirement Benefits	NOTE 21 PENSION AND OTHER POST-RETIREMENT BENEFITS We offer the following pension and other post-retirement benefits to qualified employees: defined benefit pension plans; defined contribution pension plans; and health, disability, dental and life insurance (referred to as other defined benefit) plans. Substantially all our employees participate in at least one of these plans. Description of Defined Benefit Pension Plans Plan Type Contributions United States non-contributory, guaranteed annual pension payments for life, benefits generally depend on years of service and compensation level in the final years leading up to age 65, benefits available starting at age 55 at a reduced rate, and plans provide for maximum pensionable salary and maximum annual benefit limits. made to meet or exceed minimum funding requirements of the Employee Retirement Income Security Act of 1974 and associated Internal Revenue Service regulations and procedures. Canada made to meet or exceed minimum funding requirements based on provincial statutory requirements and associated federal taxation rules. Supplemental Plans in US and Canada for Senior Management non-contributory, unfunded, and supplementary pension benefits. provided for by charges to earnings sufficient to meet the projected benefit obligations, and payments to plans are made as plan payments to retirees occur. Our defined benefit pension plans are funded with separate funds that are legally separated from the Company and administered through an employee benefits or management committee in each country, which is composed of our employees. The employee benefits or management committee is required by law to act in the best interests of the plan participants and, in the US and Canada, is responsible for the governance of the plans, including setting certain policies (e.g., investment and contribution) of the funds. The current investment policy for each country’s plans generally does not include any asset/liability matching strategies or currency hedging strategies. Plan assets held in trusts are governed by local regulations and practices in each country, as is the nature of the relationship between the Company and the trustees and their composition. Description of Other Post-Retirement Plans We provide health care plans for certain eligible retired employees in the US, Canada and Trinidad. Eligibility for these benefits is generally based on a combination of age and years of service at retirement. Certain terms of the plans include: coordination with government-provided medical insurance in each country; certain unfunded cost-sharing features such as co-insurance, deductibles and co-payments – benefits subject to change; for certain plans, maximum lifetime benefits; at retirement, the employee’s spouse and certain dependent children may be eligible for coverage; benefits are self-insured and are administered through third-party providers; and generally, retirees contribute toward annual cost of the plans. We provide non-contributory life insurance plans for certain retired employees who meet specific age and service eligibility requirements. Risks The defined benefit pension and other post-retirement plans expose us to broadly similar actuarial risks. The most significant risks include investment risk and interest rate risk as discussed below. Other risks include longevity risk and salary risk. Investment Risk A deficit will be created if plan assets underperform the discount rate used in the defined benefit obligation valuation. To mitigate investment risk, we employ: a total return on investment approach whereby a diversified mix of equities and fixed income investments is used to maximize long-term return for a prudent level of risk; and risk tolerance established through careful consideration of plan liabilities, plan funded status and corporate financial condition. Other assets such as private equity and hedge funds are not used at this time. Our policy is not to invest in commodities, precious metals, mineral rights, bullions or collectibles. Investment risk is measured and monitored on an ongoing basis through quarterly investment portfolio reviews, annual liability measurements and periodic asset/liability studies. Interest Rate Risk A decrease in bond interest rates will increase the pension liability; however, this is generally expected to be partially offset by an increase in the return on the plan’s debt investments. Financial Information 2021 2020 Plan Plan Obligation Assets Net Obligation Assets Net Balance – beginning of year (2,066) 1,706 (360) (2,044) 1,621 (423) Components of defined benefit expense recognized in earnings Current service cost for benefits earned during the year (36) ‐ (36) (36) ‐ (36) Interest (expense) income (57) 48 (9) (66) 53 (13) Past service cost, including curtailment gains and settlements 1 (2) ‐ (2) 133 (132) 1 Foreign exchange rate changes and other (7) (1) (8) (3) (1) (4) Subtotal of components of defined benefit expense (recovery) recognized in earnings (102) 47 (55) 28 (80) (52) Remeasurements of the net defined benefit liability recognized in OCI during the year Actuarial gain arising from: Changes in financial assumptions 6 ‐ 6 (153) ‐ (153) Changes in demographic assumptions 83 ‐ 83 12 ‐ 12 Gain on plan assets (excluding amounts included in net interest) 3 33 36 ‐ 230 230 Subtotal of remeasurements 92 33 125 (141) 230 89 Cash flows Contributions by plan participants (6) 6 ‐ (5) 5 ‐ Employer contributions ‐ 25 25 ‐ 26 26 Benefits paid 86 (86) ‐ 96 (96) ‐ Subtotal of cash flows 80 (55) 25 91 (65) 26 Balance – end of year 2 (1,996) 1,731 (265) (2,066) 1,706 (360) Balance comprised of: Non-current assets Other assets (Note 16) 170 109 Current liabilities Payables and accrued charges (Note 20) (16) (15) Non-current liabilities Pension and other post-retirement benefit liabilities (419) (454) 1 During 2020, we transferred certain pension plan obligations to an insurance company. 2 Obligations arising from funded and unfunded pension plans are $ 1,659 and $ 337 (2020 – $ 1,690 and $ 376 ), respectively. Other post-retirement benefit plans have no plan assets and are unfunded. Plan Assets As at December 31, the fair value of plan assets of our defined benefit pension plans, by asset category, were as follows: 2021 2020 Quoted Prices Quoted Prices in Active in Active Markets for Markets for Identical Assets Other 1 Total Identical Assets Other 1 Total Cash and cash equivalents 11 7 18 9 33 42 Equity securities and equity funds US 2 22 257 279 19 483 502 International ‐ 28 28 158 ‐ 158 Debt securities 2, 3 ‐ 1,020 1,020 ‐ 977 977 Other 2 ‐ 386 386 ‐ 27 27 Total pension plan assets 33 1,698 1,731 186 1,520 1,706 1 Approximately 100 percent (2020 – 76 percent) of the Other plan assets are held in funds whose fair values are estimated using their net asset value per share. For the majority of these funds, the redemption frequency is immediate. The Plan Committee manages the asset allocation based upon our current liquidity and income needs. 2 Certain funds have been reclassified for the year ended December 31, 2020. 3 Debt securities included US securities of 71 percent (2020 – 60 percent) and International securities of 28 percent (2020 – 40 percent) and Mortgage Backed Securities of 1 percent (2020 – nil). We use letters of credit or surety bonds to secure certain Canadian unfunded defined benefit plan liabilities as at December 31, 2021. We expect to contribute approximately $ 115 to all pension and post-retirement plans in 2022. Total contributions recognized as expense under all defined contribution plans for 2021 was $ 111 (2020 – $ 116 ). We used the following significant assumptions to determine the benefit obligations and expense for our significant plans as at and for the year ended December 31. These assumptions are determined by management and are reviewed annually by our independent actuaries. Pension Other 2021 2020 2021 2020 Assumptions used to determine the benefit obligations 1 : Discount rate (%) 3.09 2.83 2.97 2.66 Rate of increase in compensation levels (%) 4.27 4.57 n/a n/a Medical cost trend rate – assumed (%) 2 n/a n/a 4.50 - 6.50 4.50 - 5.80 Medical cost trend rate – year reaches ultimate trend rate n/a n/a 2030 2037 Mortality assumptions (years) 3 Life expectancy at 65 for a male member currently at age 65 20.7 20.6 20.6 20.2 Life expectancy at 65 for a female member currently at age 65 22.9 22.8 23.2 22.8 Average remaining service period of active employees (years) ‐ ‐ ‐ ‐ Average duration of the defined benefit obligations (years) 4 15.3 15.4 14.9 15.2 1 The current year’s expense is determined using the assumptions that existed at the end of the previous year. 2 We assumed a graded medical cost trend rate starting at 6.50 percent in 2021, moving to 4.50 percent by 2030 (2020 – starting at 5.80 percent, moving to 4.50 percent by 2037). 3 Based on actuarial advice in accordance with the latest available published tables, adjusted where appropriate to reflect future longevity improvements for each country. 4 Weighted average length of the underlying cash flows. Of the most significant assumptions, a change in discount rates has the greatest potential impact on our pension and other post-retirement benefit plans, with sensitivity to change as follows: 2021 2020 Expense in Expense in Benefit Earnings Before Benefit Earnings Before Change in Assumption Obligations Income Taxes Obligations Income Taxes As reported 1,996 55 2,066 52 Discount rate 1.0 percentage point decrease 330 20 360 10 1.0 percentage point increase ( 260 ) ( 20 ) ( 280 ) (10)

Asset Retirement Obligations an

Asset Retirement Obligations and Accrued Environmental Costs	12 Months Ended
	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Asset Retirement Obligations and Accrued Environmental Costs	NOTE 22 ASSET RETIREMENT OBLIGATIONS AND ACCRUED ENVIRONMENTAL COSTS A provision is an estimated liability with uncertainty over the timing or amount that will be paid. The most significant asset retirement and environmental remediation provisions relate to costs to restore potash and phosphate sites to their original, or another specified, condition. The pre-tax risk-free discount rate, expected cash flow payments and sensitivity to changes in the discount rate on the recorded liability for asset retirement obligations and accrued environmental costs as at December 31, 2021, were as follows: Cash Flow Discounted Discount Rate Payments (years) 1 Cash Flows 2,3 +0.5% -0.5% Asset retirement obligations (75) 85 Retail 1 – 30 23 Potash 31 – 440 96 Phosphate 1 – 79 496 Corporate and other 4,5 1 – 485 616 Accrued environmental costs (5) 5 Retail 1 – 30 86 Corporate and other 1 – 24 419 Total 1,736 1 Time frame in which payments are expected to principally occur from December 31, 2021. Adjustments to the years can result from changes to the mine life and/or changes in the rate of tailings volumes. 2 Risk-free discount rates used to discount cash flows reflect current market assessments of the time value of money and the risks specific to the timing and jurisdiction of the obligation. Risk-free rates range from 1.9 percent to 5.5 percent. 3 Total undiscounted cash flows are $ 3.3 billion. For the Potash segment, this represents total undiscounted cash flows in the first year of decommissioning. This excludes subsequent years of tailings dissolution, fine tails capping, tailings management area reclamation, post-reclamation activities and monitoring, and final decommissioning, which are estimated to take an additional 126 to 409 years. 4 For nitrogen sites, we have not recorded any asset retirement obligations as no significant asset retirement obligations have been identified or there is no reasonable basis for estimating a date or range of dates of cessation of operations. We considered the historical performance of our facilities as well as our planned maintenance, major upgrades and replacements, which can extend the useful lives of our facilities indefinitely. 5 Includes certain potash and phosphate sites that are non-operating sites, with the majority of phosphate site payments taking place over the next 18 years. Asset Accrued Retirement Environmental Obligations Costs Total Balance – December 31, 2020 1,209 550 1,759 Disposals ‐ (4) (4) Additional provisions 22 1 23 Change in estimates 78 (1) 77 Settlements (89) (27) (116) Accretion 12 (21) (9) Foreign currency translation and other (1) 7 6 Balance – December 31, 2021 1,231 505 1,736 Balance – December 31, 2021 comprised of: Current liabilities Payables and accrued charges (Note 20) 115 55 170 Non-current liabilities Asset retirement obligations and accrued environmental costs 1,116 450 1,566 We are subject to numerous environmental requirements under federal, provincial, state and local laws in the countries in which we operate. We have gypsum stack capping, and closure and post-closure obligations through our subsidiaries, PCS Phosphate Company, Inc. in White Springs, Florida, and PCS Nitrogen Inc. in Geismar, Louisiana, pursuant to the financial assurance regulatory requirements in those states. The recorded provisions may not necessarily reflect our obligations under these financial assurances.

Share Capital

Share Capital	12 Months Ended
Share Capital	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Share Capital	NOTE 23 SHARE CAPITAL Authorized We are authorized to issue an unlimited number of common shares without par value and an unlimited number of preferred shares. The common shares are not redeemable or convertible. The preferred shares may be issued in one or more series with rights and conditions to be determined by the Board of Directors. Issued Number of Common Shares Share Capital Balance – December 31, 2020 569,260,406 15,673 Issued under option plans and share-settled plans 4,424,437 226 Repurchased (15,982,154) (442) Shares cancellation (210,173) ‐ Balance – December 31, 2021 557,492,516 15,457 Share Repurchase Programs Maximum Maximum Number of Commencement Shares for Shares for Shares Date Expiry Repurchase Repurchase (%) Repurchased 2019 Normal Course Issuer Bid February 27, 2019 February 26, 2020 42,164,420 7 33,256,668 2020 Normal Course Issuer Bid February 27, 2020 February 26, 2021 28,572,458 5 710,100 2021 Normal Course Issuer Bid 1 March 1, 2021 February 28, 2022 28,468,448 5 15,982,154 2022 Normal Course Issuer Bid 2 March 1, 2022 February 28, 2023 55,111,100 10 ‐ 1 The 2021 normal course issuer bid will expire earlier than the date above if we acquire the maximum number of common shares allowable or otherwise decide not to make any further repurchases. As of February 15, 2022, an additional 6,204,241 common shares were repurchased for cancellation at a cost of $ 445 and an average price per share of $ 71.70 . 2 On February 16, 2022, our Board of Directors approved a share repurchase program, which is subject to the acceptance by the Toronto Stock Exchange. The 2022 normal course issuer bid will expire earlier than the date above if we acquire the maximum number of common shares allowable or otherwise decide not to make any further repurchases. Purchases under the normal course issuer bids were, or may be, made through open market purchases at market prices as well as by other means permitted by applicable securities regulatory authorities, including private agreements. Summary of share repurchases 2021 2020 Number of common shares repurchased for cancellation 15,982,154 3,832,580 Average price per share (US dollars) 69.17 41.96 Total cost 1,105 160 Dividends Declared 2021 2020 Declared Per Share Declared Per Share February 17, 2021 0.46 February 19, 2020 0.45 May 17, 2021 0.46 May 6, 2020 0.45 August 9, 2021 0.46 August 10, 2020 0.45 November 1, 2021 0.46 December 10, 2020 0.45 1.84 1.80 On February 16, 2022, our Board of Directors declared an increase to our quarterly dividend to $ 0.48 per share payable on April 14, 2022, to shareholders of record on March 31, 2022. The total estimated dividend to be paid is $ 265 . Share Cancellation During 2021, we cancelled 210,173 shares due to the expiration of the period when legacy companies’ (Potash Corporation of Saskatchewan Inc. and Agrium Inc.) shares could be exchanged under the plan of arrangement, wherein Nutrien became the parent company of the legacy companies.

Capital Management

Capital Management	12 Months Ended
Capital Management	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Capital Management	NOTE 24 CAPITAL MANAGEMENT Our capital allocation policy prioritizes safe and reliable operations, a healthy balance sheet, a sustainable dividend to shareholders and a strategy to allocate remaining cash flow that maximizes shareholder value. We include total debt, adjusted total debt, adjusted net debt and adjusted shareholders’ equity as components of our capital structure. We monitor our capital structure and, based on changes in economic conditions, may adjust the structure by adjusting the amount of dividends paid to shareholders, repurchasing shares, issuing new shares, issuing new debt or retiring existing debt. We use a combination of short-term and long-term debt to finance our operations. We typically pay floating rates of interest on short-term debt and credit facilities, and fixed rates on notes and debentures. We monitor the following measures to evaluate our ability to service debt, make strategic investments and ensure we are in compliance with our debt covenants: 2021 2020 Adjusted net debt to adjusted EBITDA 1.4 2.6 Adjusted EBITDA to adjusted finance costs 14.3 7.4 Debt to capital (calculated as adjusted total debt to adjusted capital) (Limit: 0.65 : 1.00) 0.32 : 1.00 0.34 : 1.00 Adjusted EBITDA is calculated in Note 3, while the calculation of the remaining components included in the above ratios are set out in the following tables: 2021 2020 Short-term debt 1,560 159 Current portion of long-term debt 545 14 Current portion of lease liabilities 286 249 Long-term debt 7,521 10,047 Lease liabilities 934 891 Total debt 10,846 11,360 Letters of credit - financial 114 150 Adjusted total debt 10,960 11,510 2021 2020 Total debt 10,846 11,360 Cash and cash equivalents (499) (1,454) Unamortized fair value adjustments (325) (404) Adjusted net debt 10,022 9,502 2021 2020 Total shareholders' equity 23,699 22,403 Adjusted total debt 10,960 11,510 Adjusted capital 1 34,659 33,913 1 Restated to reflect 2021 calculation. 2021 2020 Finance costs 613 520 Unwinding of discount on asset retirement obligations 9 (33) Borrowing costs capitalized to property, plant and equipment 29 20 Interest on net defined benefit pension and other post-retirement plan obligations (9) (13) Loss on early extinguishment of debt (142) ‐ Adjusted finance costs 500 494 In 2020, we filed a base shelf prospectus in Canada and the US qualifying the issuance of up to $ 5 billion of common shares, debt securities and other securities during a period of 25 months from March 16, 2020. In 2020, we filed a prospectus supplement to issue $ 1,500 of notes.

Business Combinations

Business Combinations	12 Months Ended
Business Combinations	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Business Combinations	NOTE 25 BUSINESS COMBINATIONS The Company’s business combinations include various digital agriculture, proprietary products and agricultural services. Individually Immaterial Acquisitions Acquisition date Various Purchase price, net of cash and cash equivalents acquired $ 88 (2020 – $ 233 ) Goodwill and expected benefits of the acquisition $ 77 (2020 – $ 133 ) The expected benefits of the acquisitions resulting in goodwill include: synergies from expected reduction in operating costs wider distribution channel for selling products of acquired businesses a larger assembled workforce potential increase in customer base enhanced ability to innovate Description 2021 – 36 Retail locations (2020 – 43 including Tec Agro Group, a leading agriculture retailer in Brazil) We allocated the following values to the acquired assets and assumed liabilities based upon fair values at their respective acquisition date. The information below represents preliminary fair values. For certain acquisitions, we finalized the purchase price with no material change to the fair values disclosed in prior periods. Refer to Note 30 for details of our valuation technique and judgments applied. 2021 2020 Receivables 43 68 Inventories 24 63 Prepaid expenses and other current assets ‐ 4 Property, plant and equipment 10 73 Goodwill 77 133 Other intangible assets 16 47 Other non-current assets 4 2 Total assets 174 390 Short-term debt 11 36 Payables and accrued charges 50 108 Long-term debt, including current portion 7 ‐ Lease liabilities, including current portion 1 2 Other non-current liabilities 17 11 Total liabilities 86 157 Total consideration, net of cash and cash equivalents acquired 88 233 Financial Information Related to the Acquired Operations 2021 Proforma (estimated as if acquisitions occurred at the beginning of the year) Sales 160 Earnings before finance costs and income taxes 10 From date of acquisition 2021 Actuals 2020 Actuals Sales 80 190 Earnings before finance costs and income taxes 7 12

Commitments

Commitments	12 Months Ended
Commitments	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Commitments	NOTE 26 COMMITMENTS A commitment is a legally binding and enforceable agreement to purchase goods or services in the future. The amounts below reflect our commitments based on current expected contract prices. As at December 31, 2021, minimum future commitments under our contractual arrangements were as follows: Principal Portion and Estimated Interest Lease Long-Term Purchase Capital Other Liabilities Debt Commitments Commitments Commitments Total Within 1 year 313 890 2,091 72 183 3,549 1 to 3 years 423 1,163 488 9 138 2,221 3 to 5 years 227 1,678 42 ‐ 91 2,038 Over 5 years 412 9,340 111 ‐ 97 9,960 Total 1,375 13,071 2,732 81 509 17,768 Purchase Commitments We have a long-term natural gas purchase agreement in Trinidad that expires on December 31, 2023. The contract provides for prices that vary primarily with ammonia market prices and annual escalating floor prices. The commitments included in the foregoing table are based on floor prices and minimum purchase quantities. Profertil has various gas contracts denominated in US dollars that expire in 2022 and 2023 and account for virtually all of Profertil’s gas requirements. YPF S.A., our joint venture partner in Profertil, supplies approximately 70 percent of the gas under these contracts. The Carseland facility has a power co-generation agreement, expiring on December 31, 2026 , which provides 60 megawatt-hours of power per hour. The price for the power is based on a fixed charge adjusted for inflation and a variable charge based on the cost of natural gas provided to the facility for power generation. Agreements for the purchase of sulfur for use in production of phosphoric acid provide for specified purchase quantities and prices based on market rates at the time of delivery. Commitments included in the foregoing table are based on expected contract prices. As part of the agreement to sell the Conda Phosphate operations (“CPO”), we entered into long-term strategic supply and offtake agreements that extend to 2023. Under the terms of the supply and offtake agreements, we will supply 100 percent of the ammonia requirements of CPO and purchase 100 percent of the monoammonium phosphate (“MAP”) product produced at CPO. The MAP production is estimated at 330,000 tonnes per year. Other Commitments Other commitments consist principally of pipeline capacity, technology service contracts, managed services contracts, throughput and various rail contracts, the latest of which expires in 2027, and mineral lease commitments, the latest of which expires in 2041.

Guarantees

Guarantees	12 Months Ended
Guarantees	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Guarantees	NOTE 27 GUARANTEES In the normal course of business, we provide indemnification agreements to counterparties in transactions such as purchase and sale contracts, service agreements, director/officer contracts, and leasing transactions. The terms of these indemnification agreements may require us to compensate counterparties for costs incurred as a result of various events, including environmental liabilities and changes in (or in the interpretation of) laws and regulations, or as a result of litigation claims or statutory sanctions that may be suffered by a counterparty as a consequence of the transaction; will vary based upon the contract, the nature of which prevents us from making a reasonable estimate of the maximum potential amount that we could be required to pay to counterparties; and have not historically resulted in any significant payments by Nutrien and, as at December 31, 2021, no amounts have been accrued in the consolidated financial statements (except for accruals relating to certain underlying liabilities). We directly guarantee our share of certain commitments of Canpotex (such as railcar leases) under certain agreements with third parties. We would be required to perform on these guarantees in the event of default by the investee. No material loss is anticipated by reason of such agreements and guarantees.

Related Party Transactions

Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Related Party Transactions	NOTE 28 RELATED PARTY TRANSACTIONS We transact with a number of related parties, the most significant being with our associates and joint ventures, key management personnel, and post-employment benefit plans. Sale of Goods We sell potash outside Canada and the US exclusively through Canpotex. Canpotex sells potash to buyers in export markets pursuant to term and spot contracts at agreed upon prices. Our total revenue is recognized at the amount received from Canpotex representing proceeds from their sale of potash, less net costs of Canpotex. Sales to Canpotex are shown in Note 3. The receivable outstanding from Canpotex is shown in Note 11 and arose from sale transactions described above. It is unsecured and bears no interest. There are no provisions held against this receivable. Key Management Personnel Compensation and Transactions with Post-Employment Benefit Plans 2021 2020 Salaries and other short-term benefits 16 16 Share-based compensation 55 26 Post-employment benefits 4 2 Termination benefits 7 ‐ 82 44 Disclosures related to our post-employment benefit plans are shown in Note 21.

Contingencies and Other Matters

Contingencies and Other Matters	12 Months Ended
Contingencies and Other Matters	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Contingencies and Other Matters	NOTE 29 CONTINGENCIES AND OTHER MATTERS Contingent liabilities, which are not recognized in the consolidated financial statements but may be disclosed, are possible obligations as a result of uncertain future events outside of our control or present obligations not recognized because the amount cannot be sufficiently measured or payment is not probable. Accounting Estimates and Judgments The following judgments are required to determine our exposure to possible losses and gains related to environmental matters and other various claims and lawsuits pending: prediction of the outcome of uncertain events (i.e., being virtually certain, probable, remote or undeterminable); determination of whether recognition or disclosure in the consolidated financial statements is required; and estimation of potential financial effects. Where no amounts are recognized, such amounts are contingent and disclosure may be appropriate. While the amount disclosed in the consolidated financial statements may not be material, the potential for large liabilities exists and, therefore, these estimates could have a material impact on our consolidated financial statements. Supporting Information Canpotex Nutrien is a shareholder in Canpotex, which markets Canadian potash outside of Canada and the US. Should any operating losses or other liabilities be incurred by Canpotex, the shareholders have contractually agreed to reimburse it in proportion to each shareholder’s productive capacity. Through December 31, 2021, we are not aware of any operating losses or other liabilities. Mining Risk The risk of underground water inflows and other underground risks is insured on a limited basis, subject to insurance market availability. Through December 31, 2021, we are not aware of any material losses or other liabilities that we have not accrued for. Environmental Remediation, Legal and Other Matters We are engaged in ongoing site assessment and/or remediation activities at a number of facilities and sites. Anticipated costs associated with these matters are added to accrued environmental costs in the manner described in Note 22. We have established provisions for environmental site assessment and/or remediation matters to the extent that we consider expenses associated with those matters likely to be incurred. Except for the uncertainties described below, we do not believe that our future obligations with respect to these matters are reasonably likely to have a material adverse effect on our consolidated financial statements. Legal matters with significant uncertainties include the following: The United States Environmental Protection Agency (“US EPA”) has an ongoing enforcement initiative directed at the phosphate industry related to the scope of an exemption for mineral processing wastes under the US Resource Conservation and Recovery Act (“RCRA”). This initiative affects the Conda Phosphate plant previously owned by Nu-West Industries, Inc. (“Nu-West”), a wholly owned subsidiary of Agrium Inc., and the Nutrien phosphoric acid facilities in Aurora, North Carolina; Geismar, Louisiana; and White Springs, Florida. All of these facilities received US EPA notices of violation (“NOVs”) that remain outstanding for alleged violations of the RCRA and various other environmental laws. Notwithstanding the sale of the Conda Phosphate operations in January 2018, Nu-West remains responsible for environmental liabilities attributable to its historic activities and for resolution of the NOVs. All of the facilities have been and continue to be involved in ongoing discussions with the US EPA, the US Department of Justice and the related state agencies to resolve these matters. Due to the nature of the allegations, we are uncertain as to how the matters will be resolved. Based on settlements with other members of the phosphate industry, we expect that a resolution could involve any or all of the following: 1) penalties, which we currently believe will not be material; 2) modification of certain operating practices; 3) capital improvement projects; 4) providing financial assurance for the future closure, maintenance and monitoring costs for the phosphogypsum stack system; and 5) addressing findings resulting from the RCRA section 3013 site investigations. We operate in countries that are parties to the Paris Agreement adopted in December 2015 pursuant to the United Nations Framework Convention on Climate Change. Each country that is a party to the Paris Agreement submitted an Intended Nationally Determined Contribution (“INDC”) toward the control of greenhouse gas emissions. The impacts on our operations of these INDCs and other national and local efforts to limit or tax greenhouse gas emissions cannot be determined with any certainty at this time. In addition, various other claims and lawsuits are pending against the Company in the ordinary course of business. While it is not possible to determine the ultimate outcome of such actions at this time, and inherent uncertainties exist in predicting such outcomes, we believe that the ultimate resolution of such actions is not reasonably likely to have a material adverse effect on our consolidated financial statements. The breadth of our operations and the global complexity of tax regulations require assessments of uncertainties and judgments in estimating the taxes we will ultimately pay. The final taxes paid are dependent upon many factors, including negotiations with taxing authorities in various jurisdictions, outcomes of tax litigation, and resolution of disputes arising from federal, provincial, state and local tax audits. The resolution of these uncertainties and the associated final taxes may result in adjustments to our tax assets and tax liabilities. We own facilities that have been either permanently or indefinitely shut down. We expect to incur nominal annual expenditures for site security and other maintenance costs at some of these facilities. Should the facilities be dismantled, certain other shutdown-related costs may be incurred. Such costs are not expected to have a material adverse effect on our consolidated financial statements and would be recognized and recorded in the period in which they are incurred.

Accounting Policies, Estimates

Accounting Policies, Estimates and Judgments	12 Months Ended
Accounting Policies, Estimates and Judgments	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Accounting Policies, Estimates and Judgments	NOTE 30 ACCOUNTING POLICIES, ESTIMATES AND JUDGMENTS The following discusses the significant accounting policies, estimates, judgments and assumptions that we have adopted and applied and how they affect the amounts reported in the consolidated financial statements. Certain of our policies involve accounting estimates and judgments because they require us to make subjective or complex judgments about matters that are inherently uncertain and because of the likelihood that materially different amounts could be reported under different conditions or using different assumptions. Basis of Consolidation These consolidated financial statements include the accounts of the Company and entities we control. Subsidiaries are fully consolidated from the date on which control is transferred to the Company until the date on which control ceases. They are deconsolidated from the date that control ceases. Intercompany balances and transactions are eliminated on consolidation. Principal (wholly owned) Operating Subsidiaries Location Principal Activity Potash Corporation of Saskatchewan Inc. Canada Mining and/or processing of crop nutrients and corporate functions Agrium Inc. Canada Manufacturer and distributor of crop nutrients and corporate functions Agrium Canada Partnership Canada Manufacturer and distributor of crop nutrients Agrium Potash Ltd. Canada Agrium U.S. Inc. US Cominco Fertilizer Partnership US Loveland Products Inc. US Nutrien Ag Solutions Argentina S.A Argentina Nutrien Ag Solutions (Canada) Inc. Canada Crop input retailer Nutrien Ag Solutions, Inc. US Nutrien Ag Solutions Limited Australia PCS Nitrogen Fertilizer, LP US Production of nitrogen products in the US PCS Nitrogen Ohio LP US Production of nitrogen products in the state of Ohio PCS Sales (USA) Inc. US Marketing and sales of the Company’s products PCS Nitrogen Trinidad Limited Trinidad Production of nitrogen products in Trinidad PCS Phosphate Company, Inc. US Mining and/or processing of phosphate products Phosphate Holding Company, Inc. US Mining and/or processing of phosphate products and production of nitrogen products in the US COVID-19 Due to the impact of the COVID-19 pandemic we have assessed our accounting estimates and other matters that require the use of forecasted financial information. The assessment included estimates of the unknown future impacts of the pandemic using information that is reasonably available at this time. Accounting estimates and other matters assessed include the allowance for expected credit losses of receivables from customers, valuation of inventory, goodwill and other long-lived assets, financial assets, tax assets, pension obligations and assets, and revenue recognition. Based on the current assessment, there was not a material impact on these consolidated financial statements. As a result of the pandemic, we incurred directly attributable and incremental COVID-19 related expenses in other (income) expenses (Note 6). Climate Change In 2021, we announced our Environmental, Social and Governance (“ESG”) commitment to help address our key climate-related risks related to climate change and reduce our carbon footprint. There were also recent developments in the ESG frameworks and regulatory initiatives and we recognize that these developments could further impact our accounting estimates and judgments including, but not limited to, assessment of our asset useful lives, impairment of other long-lived assets, valuation of inventory, and asset retirement obligations and accrued environmental costs. We have monitored and will continue to monitor these developments as they affect our consolidated financial statements. Foreign Currency Transactions The consolidated financial statements are presented in US dollars, which we determined to be the functional currency of the Company and the majority of our subsidiaries. In determining the functional currency of our operations, we primarily considered the currency that determines the pricing of transactions rather than focusing on the currency in which transactions are denominated. Foreign exchange gains and losses resulting from the settlement of foreign currency transactions, and from the translation at period-end of monetary assets and liabilities denominated in foreign currencies, are recognized and presented in the consolidated statements of earnings within other (income) expenses, as applicable, in the period in which they arise. Non-monetary assets measured at historical cost are translated at the average monthly exchange rate prevailing at the time of the transaction, unless the exchange rate in effect on the date of the transaction is available and it is apparent that such rate is a more suitable measurement. Assets and liabilities in foreign operations are translated using the period-end rate, while the income and expenses are translated using the average monthly exchange rate. Equity of the foreign operation is translated using the historical rate at the time of the acquisition. Exchange gains and losses resulting from translation are recognized in other comprehensive income and accumulated in a separate reserve within equity. The cumulative amount is reclassified to profit or loss when the foreign operation is disposed of. Revenue We recognize revenue when we transfer control over a good or service to a customer. Transfer of Control for Sale of Goods Transfer of Control for Sale of Services At the point in time when the product is purchased at our Retail farm center, delivered and accepted by customers at their premises, or loaded for shipping. Over time as the promised service is rendered Judgment is used to determine whether we are acting as principal or agent by evaluating who: has the primary responsibility for fulfilling the promised good; bears the inventory risk including if the vendor has the right to have its product returned on demand; and has discretion for establishing the price. For transactions in which we act as an agent rather than the principal, revenue is recognized net of any commissions earned. The related commissions are recognized as the sales occur or as unconditional contracts are signed. We recognize profits on sales to Canpotex when there is a transfer of control, either at the time the product is loaded for shipping or delivered, depending on the terms of the contract. Sales are recognized using a provisional price at the time control is transferred to Canpotex, with the final pricing determined upon Canpotex’s final sale to a third party (generally between one to three months from date of sale to Canpotex). Our sales revenue relating to our Potash, Nitrogen and Phosphate segments is generally recorded and measured based on the “freight on board” mine, plant, warehouse or terminal price specified in the contract (except for certain vessel sales or specific product sales that are shipped and recorded on a delivered basis), which reflects the consideration we expect to be entitled to in exchange for the goods or services, net of any variable consideration (e.g., any trade discounts or estimated volume rebates). Our customer contracts may provide certain product quality specification guarantees but do not generally provide for refunds or returns. Sales prices are based on North American and international benchmark market prices, which are subject to global supply and demand, and other market factors. For our Retail segment, we do not provide general warranties; however, our customer contracts may provide certain product quality specification guarantees. Returns and incentives are estimated based on historical and forecasted data, contractual terms, and current conditions. Transportation costs are generally recovered from the customer through sales pricing. Where customer contracts include volume rebates, we estimate revenue at the earlier of when the most likely amount of consideration we expect to receive has been determined or when it is highly probable that a significant reversal will not occur. Due to the nature of goods and services sold, any single estimate would have only a negligible impact on revenue. As the expected period between when control over a promised good or service is transferred and when the customer pays for that good or service is generally less than 12 months, we apply the practical expedient as provided in IFRS 15, “Revenue from Contracts with Customers,” and do not adjust the promised amount of consideration for the effects of financing. Intersegment sales are made under terms that approximate market value. Seasonality in our business results from increased demand for products during planting season. Crop input sales are generally higher in the spring and fall application seasons. Crop nutrient inventories are normally accumulated leading up to each application season. Our cash collections generally occur after the application season is complete, while customer prepayments made to us are typically concentrated in December and January and inventory prepayments paid to our suppliers are typically concentrated in the period from November to January. Feed and industrial sales are more evenly distributed throughout the year. Share-Based Compensation For awards with performance conditions that determine the number of options or units to which employees are entitled, measurement of compensation cost is based on our best estimate of the outcome of the performance conditions. Changes to vesting assumptions are reflected in earnings immediately for compensation cost already recognized. For Plans Settled Through the Issuance of Equity For Plans Settled Through Cash fair value for stock options is determined on grant date using the Black-Scholes-Merton option-pricing model, and fair value for PSUs is determined on grant date by projecting the outcome of performance conditions. a liability is recorded based on the fair value of the awards each period. Estimation involves determining: stock option-pricing model assumptions as described in the weighted average assumptions table in Note 5; forfeiture rate for options granted based on past experience and future expectations, and adjusted upon actual vesting; projected outcome of performance conditions for PSUs, including the relative ranking of our total shareholder return, including expected dividends, compared with a specified peer group using a Monte Carlo simulation option-pricing model; and the number of dividend equivalent units expected to be earned. Income Taxes Taxation on earnings (loss) is comprised of current and deferred income tax. Taxation is recognized in the statements of earnings unless it relates to items recognized either in OCI or directly in shareholders’ equity. Current Income Tax Deferred Income Tax is the expected tax payable on the taxable earnings for the year and includes any adjustments to income tax payable or recoverable in respect of previous years is calculated using rates enacted or substantively enacted at the dates of the consolidated balance sheets in the countries where our subsidiaries and equity-accounted investees operate and generate taxable earnings is the best estimate expected to be paid to (or recovered from) the taxation authorities is recognized using the liability method is based on temporary differences between carrying amounts of assets and liabilities and their respective income tax bases is determined using tax rates that have been enacted or substantively enacted by the dates of the consolidated balance sheets and are expected to apply when the related deferred income tax asset is realized or the deferred income tax liability is settled Current and deferred income tax assets and liabilities are offset only if certain criteria are met. The realized and unrealized excess tax benefits from share-based compensation arrangements are recognized in contributed surplus as current and deferred tax, respectively. The final taxes paid, and potential adjustments to tax assets and liabilities, are dependent upon many factors including negotiations with taxation authorities in various jurisdictions; outcomes of tax litigation; and resolution of disputes arising from federal, provincial, state and local tax audits. Deferred income tax is not accounted for with respect to investments in subsidiaries and equity-accounted investees where we are able to control the reversal of the temporary difference and that difference is not expected to reverse in the foreseeable future; and if arising from initial recognition of an asset or liability in a transaction, other than a business combination, that at the time of the transaction affects neither accounting nor taxable profit or loss. Deferred tax assets are recognized to the extent it is probable future taxable profit will be available to use deductible temporary differences and could be reduced if projected earnings are not achieved or increased if earnings previously not projected become probable; and reviewed at each balance sheet date and amended to the extent that it is no longer probable that the related tax benefit will be realized. Financial Instruments Financial assets are measured at fair value (either through OCI or through profit or loss) or amortized cost depending on the objective of the business model for managing the instrument or group of instruments and the contractual terms of the cash flows. For equity investments not held for trading, we may make an irrevocable election at initial recognition to recognize changes in fair value through OCI rather than profit or loss. Financial instruments are classified and measured as follows: Fair Value Classification Fair Value Through Profit or Loss FVTOCI Amortized Cost Instrument type Cash and cash equivalents, derivatives, and certain equity investments not held for trading Certain equity investments not held for trading which an irrevocable election was made Receivables, short-term debt, payables and accrued charges, long-term debt, lease liabilities, other long-term debt instruments Fair value gains and losses Profit or loss OCI – Interest and dividends Profit or loss Profit or loss Profit or loss: effective interest rate Impairment of assets – – Profit or loss Foreign exchange Profit or loss OCI Profit or loss Transaction costs Profit or loss OCI Included in cost of instrument Financial instruments are recognized at trade date when we commit to purchase or sell the asset. Financial assets are derecognized when the rights to receive cash flow from the investments have expired or we have transferred the rights to receive cash flow and all the risks and rewards of ownership have also been substantially transferred. Derivatives are used to lock in commodity prices, interest rates and exchange rates. For designated and qualified cash flow hedges the effective portion of the change in the fair value of the derivative is accumulated in OCI; when the hedged forecast transaction occurs, the related gain or loss is removed from AOCI and included in the cost of inventory; the hedging gain or loss included in the cost of inventory is recognized in earnings when the product containing the hedged item is sold or becomes impaired; and the ineffective portions of hedges are recorded in net earnings in the current period. We assess whether our derivatives hedging transactions are expected to be or were highly effective, both at the hedge’s inception and on an ongoing basis, in offsetting changes in fair values of hedged items. Hedging Transaction Measurement of Ineffectiveness Potential Sources of Ineffectiveness New York Mercantile Exchange (“NYMEX”) natural gas hedges Assessed on a prospective and retrospective basis using regression analyses Changes in: timing of forecast transactions volume delivered our credit risk or the credit risk of a counterparty Foreign exchange and interest rate Comparison of the cumulative changes in fair value and the cumulative change in the fair value of a hypothetical derivative with terms based on the hedged forecast cash flows Changes in: timing or amounts of forecasted cash flows embedded optionality our credit risk or the credit risk of a counterparty Financial assets and financial liabilities are offset, and the net amount is presented in the consolidated balance sheets when we currently have a legally enforceable right to offset the recognized amounts; and intend either to settle on a net basis, or to realize the assets and settle the liabilities simultaneously. Fair Value Measurements Estimated fair values for financial instruments are designed to approximate amounts for which the instruments could be exchanged in a current arm’s-length transaction between knowledgeable, willing parties. The valuation policies and procedures for financial reporting purposes are determined by our finance department. Fair value measurements are categorized into different levels within a fair value hierarchy based on the degree to which the lowest level inputs are observable and their significance: Level 1 Level 2 Level 3 Unadjusted quoted prices (in active markets accessible at the measurement date for identical assets or liabilities) Quoted prices (in markets that are not active or based on inputs that are observable for substantially the full term of the asset or liability) Prices or valuation techniques that require inputs that are both unobservable and significant to the overall measurement Fair value estimates are at a point in time and may change in subsequent reporting periods due to market conditions or other factors; can be determined using multiple methods, which can cause values (or a range of reasonable values) to differ; and may require assumptions about costs/prices over time, discount and inflation rates, defaults, and other relevant variables. Cash and Cash Equivalents Highly liquid investments with a maturity of three months or less from the date of purchase are considered to be cash equivalents. Receivables Receivables from customers are recognized initially at fair value and subsequently measured at amortized cost less allowance for expected credit losses of receivables from customers. Vendors may offer various incentives to purchase products for resale. Vendor rebates and prepay discounts are accounted for as a reduction of the prices of the suppliers’ products. Rebates based on the amount of materials purchased reduce cost of goods sold as inventory is sold. Rebates earned based on sales volumes of products are offset to cost of goods sold. Rebates that are probable and can be reasonably estimated are accrued. Rebates that are not probable or estimable are accrued when certain milestones are achieved. Estimation of rebates can be complex in nature as vendor arrangements are diverse. The amount of the accrual is determined by analyzing and reviewing historical trends to apply negotiated rates to estimated and actual purchase volumes. Estimated amounts accrued throughout the year could also be impacted if actual purchase volumes differ from projected volumes. Inventories Inventories are valued monthly at the lower of cost and net realizable value. Costs are allocated to inventory using the weighted average cost method. Net realizable value is based on Products and Raw Materials Materials and Supplies selling price of the finished product (in ordinary course of business) less the estimated costs of completion and estimated costs to make the sale replacement cost A writedown is recognized if the carrying amount exceeds net realizable value and may be reversed if the circumstances that caused it no longer exist. Various factors impact our estimates of net realizable value, including inventory levels, forecasted prices of key production inputs, global nutrient capacities, crop price trends, climate-change initiatives, and changes in regulations and standards employed. Property, Plant and Equipment Owned Right-of-Use (leased) Measurement cost, which includes capitalized borrowing costs, less accumulated depreciation and any accumulated impairment losses cost of major inspections and overhauls is capitalized maintenance and repair expenditures that do not improve or extend productive life are expensed in the period incurred cost less accumulated depreciation and any accumulated impairment losses lease payments are allocated between finance costs and a reduction of the liability, and discounted using the interest rate implicit in the lease, if available, or an incremental borrowing rate, being a rate that we would have to pay to borrow the funds required to obtain a similar asset, adjusted for term, security, asset value and the borrower’s economic environment Depreciation method certain property, plant and equipment directly related to our Potash, Nitrogen and Phosphate segments uses units-of-production based on the shorter of estimates of reserves or service lives pre-stripping costs uses units-of-production over the ore mined from the mineable acreage stripped remaining assets uses straight-line straight-line over the shorter of the asset's useful life and the lease term Estimated useful lives, expected patterns of consumption, depreciation method and residual values are reviewed at least annually. Judgment/practical expedients Judgment is required in determining costs, including income or expenses derived from an asset under construction, that are eligible for capitalization; timing to cease cost capitalization, generally when the asset is capable of operating in the manner intended by management, but also considering the circumstances and the industry in which the asset is to be operated, normally predetermined by management with reference to such factors as productive capacity; the appropriate level of componentization (for individual components for which different depreciation methods or rates are appropriate); repairs and maintenance that qualify as major inspections and overhauls; and useful life over which such costs should be depreciated, which may be impacted by changes in our strategy, process or operations as a result of climate-change initiatives. Judgment is required to determine whether a contract or arrangement includes a lease and if it is reasonably certain that an extension option will be exercised. We seek to maximize operational flexibility in managing our leasing activities by including extension options when negotiating new leases. Extension options are exercisable at our option and not by the lessors. In determining if a renewal period should be included in the lease term, we consider all relevant factors that create an economic incentive for us to exercise a renewal, including the location of the asset and the availability of suitable alternatives the significance of the asset to operations, and our business strategy. Estimation is used to determine the useful lives of ROU assets, the lease term and the appropriate discount rate applied to the lease payments to calculate the lease liability. Owned Right-of-Use (leased) Uncertainties are inherent in estimating reserve quantities, particularly as they relate to assumptions regarding future prices, the geology of our mines, the mining methods used, and the related costs incurred to develop and mine reserves. Changes in these assumptions could result in material adjustments to reserve estimates, which could result in impairments or changes to depreciation expense in future periods. We have chosen to include the use of a single discount rate for a portfolio of leases with reasonably similar characteristics, not separate non-lease components and instead to account for lease and non-lease components as a single arrangement, and use exemptions for short-term and low-value leases which allow payments to be expensed as incurred. Other Not applicable. Lease agreements do not contain significant covenants; however, leased assets may be used as security for lease liabilities and other borrowings. Goodwill and Other Intangible Assets Goodwill is carried at cost, is not amortized, and represents the excess of the cost of an acquisition over the fair value of the Company’s share of the net identifiable assets of the acquired subsidiary at the date of acquisition. Goodwill is allocated to a CGU or group of CGUs for impairment testing based on the level at which it is monitored by management, and not at a level higher than an operating segment. The allocation is made to the CGU or group of CGUs expected to benefit from the business combination in which the goodwill arose. Other intangible assets are generally measured at cost less accumulated amortization and any accumulated impairment losses. We use judgment to determine which expenditures are eligible for capitalization as intangible assets. Costs incurred internally from researching and developing a product are expensed as incurred until technological feasibility is established, at which time the costs are capitalized until the product is available for its intended use. Judgment is required in determining when technological feasibility of a product is established. Intangible assets with finite lives are amortized on a straight-line basis over their estimated useful lives. At least annually, the useful lives are reviewed and adjusted if appropriate. Impairment of Long-Lived Assets To assess impairment, assets are grouped at the smallest levels for which there are separately identifiable cash inflows that are largely independent of the cash inflows from other assets or groups of assets (this can be at the asset or CGU level). At the end of each reporting period, we review conditions to determine whether there is any indication that an impairment exists that could potentially impact the carrying amounts of both our long-lived assets to be held and used (including property, plant and equipment, and investments), and our goodwill and other intangible assets. When such indicators exist, impairment testing is performed. Regardless, goodwill is tested at least annually (in the fourth quarter). We review, at each reporting period, for possible reversal of the impairment for non-financial assets, other than goodwill. Estimates and judgment involves identifying the appropriate asset, group of assets, CGU or groups of CGUs; determining the appropriate discount rate for assessing the recoverable amount; making assumptions about future sales, market conditions, terminal growth rates and cash flow forecasts over the long-term life of the assets or CGUs; and evaluating impacts of climate change to our strategy, processes and operations. We cannot predict if an event that triggers impairment or a reversal of impairment will occur, when it will occur or how it will affect reported asset amounts. Asset impairment amounts previously recorded could be affected if different assumptions were used or if market and other conditions change. Such changes could result in non-cash charges materially affecting our consolidated financial statements. Pension and Other Post-Retirement Benefits Employee retirement and other defined benefit plans costs, including current and past service costs, gains or losses on curtailments and settlements, and remeasurements, are actuarially determined on a regular basis using the projected unit credit method. When a plan amendment occurs before a settlement, we recognize past service cost before any gain or loss on settlement. Our discount rate assumptions are impacted by: the weighted average interest rate at which each pension and other post-retirement plan liability could be effectively settled at the measurement date; country specific rates; and the use of a yield curve approach based on the respective plans’ demographics, expected future pension benefits and medical claims. Payments are measured and discounted to determine the present value of the expected future cash flows. The cash flows are discounted using yields on high-quality AA-rated non-callable bonds with cash flows of similar timing where there is a deep market for such bonds. Where we do not believe there is a deep market for such bonds (such as for terms in excess of 10 years in Canada), the cash flows are discounted using a yield curve derived from yields on provincial bonds rated AA or better to which a spread adjustment is added to reflect the additional risk of corporate bonds. Net actuarial gains or loss incurred during the period for defined benefit plans are closed out to retained earnings at each period-end. Asset Retirement Obligations and Accrued Environmental Costs Asset retirement obligations and accrued environmental costs include: reclamation and restoration costs at our potash and phosphate mining operations, including management of materials generated by mining and mineral processing, such as various mine tailings and gypsum; land reclamation and revegetation programs; decommissioning of underground and surface operating facilities; general cleanup activities aimed at returning the areas to an environmentally acceptable condition; and post-closure care and maintenance. We consider the following factors as we estimate our provisions: environmental laws and regulations and interpretations by regulatory authorities, including updates on climate change, could change or circumstances affecting our operations could change, either of that could result in significant changes to current plans; the nature, extent and timing of current and proposed reclamation and closure techniques in view of present environmental laws and regulations; appropriate technical resources, including outside consultants, assist us in developing specific site closure and post-closure plans in accordance with the jurisdiction requirements; and timing of settlement of the obligations, which is typically correlated with mine life estimates except for certain land reclamation programs. It is reasonably possible that the ultimate costs could change in the future and that changes to these estimates could have a material effect on our consolidated financial statements. We review our estimates for any changes in assumptions at the end of each reporting period. We recognized contingent liabilities related to our business combinations or acquisitions, which represent additional environmental costs that are present obligations although cash outflows of resources are not probable. These contingent liabilities are subsequently measured at the higher of the amount initially recognized and the amount that would be recognized if the liability becomes probable. Restructuring Charges Plant shutdowns, sales of business units or other corporate restructurings may trigger restructuring charges. The provision is based on the best estimate of a detailed formal plan, which includes determining the incremental costs for employee termination, contract termination and other exit costs. Business Combinations

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
Significant Accounting Policies (Policies)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Business Combinations	Business Combinations Purchase price allocation involves judgment in identifying assets acquired and liabilities assumed, and estimation of their fair values. Key assumptions include discount rates and revenue growth rates specific to the acquired assets or liabilities assumed. We performed a thorough review of all internal and external sources of information available on circumstances that existed at the acquisition date. We also engaged independent valuation experts on certain acquisitions to assist in determining the fair value of certain assets acquired and liabilities assumed and related deferred income tax impacts. To determine fair values, we generally use the following valuation techniques: Account Valuation Technique and Judgments Applied Property, plant and equipment Market approach for land and certain types of personal property: sales comparison that measures the value of an asset through an analysis of sales and offerings of comparable assets. Replacement costs for all other depreciable property, plant and equipment: measures the value of an asset by estimating the costs to acquire or construct comparable assets and adjusts for age and condition of the asset. Other intangible assets Income approach – multi-period excess earnings method: measures the value of an asset based on the present value of the incremental after-tax cash flows attributable to the asset after deducting contributory asset charges (“CACs”). Allocation of CACs is a matter of judgment and based on the nature of the acquired businesses’ operations and historical trends. We considered several factors in determining the fair value of customer relationships, such as customers’ relationships with the acquired company and its employees, the segmentation of customers, historical customer attrition rates, and revenue growth. Other provisions and contingent liabilities Decision-tree approach of future costs and a risk premium to capture the compensation sought by risk-averse market participants for bearing the uncertainty inherent in the cash flows of the liability. For each business combination, we elect to measure the non-controlling interest in the acquired entity either at fair value or at the proportionate share of the acquiree’s identifiable net assets. Foreign exchange hedge gains or losses which we designated a cash flow hedge are included in the consideration. The gain or loss from the cash flow hedge is deferred in OCI and subsequently recorded as an adjustment to goodwill when the business combination occurs. Transaction costs are recorded in integration and restructuring related costs in other (income) expenses.
Revenue	Revenue We recognize revenue when we transfer control over a good or service to a customer. Transfer of Control for Sale of Goods Transfer of Control for Sale of Services At the point in time when the product is purchased at our Retail farm center, delivered and accepted by customers at their premises, or loaded for shipping. Over time as the promised service is rendered Judgment is used to determine whether we are acting as principal or agent by evaluating who: has the primary responsibility for fulfilling the promised good; bears the inventory risk including if the vendor has the right to have its product returned on demand; and has discretion for establishing the price. For transactions in which we act as an agent rather than the principal, revenue is recognized net of any commissions earned. The related commissions are recognized as the sales occur or as unconditional contracts are signed. We recognize profits on sales to Canpotex when there is a transfer of control, either at the time the product is loaded for shipping or delivered, depending on the terms of the contract. Sales are recognized using a provisional price at the time control is transferred to Canpotex, with the final pricing determined upon Canpotex’s final sale to a third party (generally between one to three months from date of sale to Canpotex). Our sales revenue relating to our Potash, Nitrogen and Phosphate segments is generally recorded and measured based on the “freight on board” mine, plant, warehouse or terminal price specified in the contract (except for certain vessel sales or specific product sales that are shipped and recorded on a delivered basis), which reflects the consideration we expect to be entitled to in exchange for the goods or services, net of any variable consideration (e.g., any trade discounts or estimated volume rebates). Our customer contracts may provide certain product quality specification guarantees but do not generally provide for refunds or returns. Sales prices are based on North American and international benchmark market prices, which are subject to global supply and demand, and other market factors. For our Retail segment, we do not provide general warranties; however, our customer contracts may provide certain product quality specification guarantees. Returns and incentives are estimated based on historical and forecasted data, contractual terms, and current conditions. Transportation costs are generally recovered from the customer through sales pricing. Where customer contracts include volume rebates, we estimate revenue at the earlier of when the most likely amount of consideration we expect to receive has been determined or when it is highly probable that a significant reversal will not occur. Due to the nature of goods and services sold, any single estimate would have only a negligible impact on revenue. As the expected period between when control over a promised good or service is transferred and when the customer pays for that good or service is generally less than 12 months, we apply the practical expedient as provided in IFRS 15, “Revenue from Contracts with Customers,” and do not adjust the promised amount of consideration for the effects of financing. Intersegment sales are made under terms that approximate market value. Seasonality in our business results from increased demand for products during planting season. Crop input sales are generally higher in the spring and fall application seasons. Crop nutrient inventories are normally accumulated leading up to each application season. Our cash collections generally occur after the application season is complete, while customer prepayments made to us are typically concentrated in December and January and inventory prepayments paid to our suppliers are typically concentrated in the period from November to January. Feed and industrial sales are more evenly distributed throughout the year.
Income Taxes	Income Taxes Taxation on earnings (loss) is comprised of current and deferred income tax. Taxation is recognized in the statements of earnings unless it relates to items recognized either in OCI or directly in shareholders’ equity. Current Income Tax Deferred Income Tax is the expected tax payable on the taxable earnings for the year and includes any adjustments to income tax payable or recoverable in respect of previous years is calculated using rates enacted or substantively enacted at the dates of the consolidated balance sheets in the countries where our subsidiaries and equity-accounted investees operate and generate taxable earnings is the best estimate expected to be paid to (or recovered from) the taxation authorities is recognized using the liability method is based on temporary differences between carrying amounts of assets and liabilities and their respective income tax bases is determined using tax rates that have been enacted or substantively enacted by the dates of the consolidated balance sheets and are expected to apply when the related deferred income tax asset is realized or the deferred income tax liability is settled Current and deferred income tax assets and liabilities are offset only if certain criteria are met. The realized and unrealized excess tax benefits from share-based compensation arrangements are recognized in contributed surplus as current and deferred tax, respectively. The final taxes paid, and potential adjustments to tax assets and liabilities, are dependent upon many factors including negotiations with taxation authorities in various jurisdictions; outcomes of tax litigation; and resolution of disputes arising from federal, provincial, state and local tax audits. Deferred income tax is not accounted for with respect to investments in subsidiaries and equity-accounted investees where we are able to control the reversal of the temporary difference and that difference is not expected to reverse in the foreseeable future; and if arising from initial recognition of an asset or liability in a transaction, other than a business combination, that at the time of the transaction affects neither accounting nor taxable profit or loss. Deferred tax assets are recognized to the extent it is probable future taxable profit will be available to use deductible temporary differences and could be reduced if projected earnings are not achieved or increased if earnings previously not projected become probable; and reviewed at each balance sheet date and amended to the extent that it is no longer probable that the related tax benefit will be realized.
Financial Instruments and Related Risk Management	Financial Instruments Financial assets are measured at fair value (either through OCI or through profit or loss) or amortized cost depending on the objective of the business model for managing the instrument or group of instruments and the contractual terms of the cash flows. For equity investments not held for trading, we may make an irrevocable election at initial recognition to recognize changes in fair value through OCI rather than profit or loss. Financial instruments are classified and measured as follows: Fair Value Classification Fair Value Through Profit or Loss FVTOCI Amortized Cost Instrument type Cash and cash equivalents, derivatives, and certain equity investments not held for trading Certain equity investments not held for trading which an irrevocable election was made Receivables, short-term debt, payables and accrued charges, long-term debt, lease liabilities, other long-term debt instruments Fair value gains and losses Profit or loss OCI – Interest and dividends Profit or loss Profit or loss Profit or loss: effective interest rate Impairment of assets – – Profit or loss Foreign exchange Profit or loss OCI Profit or loss Transaction costs Profit or loss OCI Included in cost of instrument Financial instruments are recognized at trade date when we commit to purchase or sell the asset. Financial assets are derecognized when the rights to receive cash flow from the investments have expired or we have transferred the rights to receive cash flow and all the risks and rewards of ownership have also been substantially transferred. Derivatives are used to lock in commodity prices, interest rates and exchange rates. For designated and qualified cash flow hedges the effective portion of the change in the fair value of the derivative is accumulated in OCI; when the hedged forecast transaction occurs, the related gain or loss is removed from AOCI and included in the cost of inventory; the hedging gain or loss included in the cost of inventory is recognized in earnings when the product containing the hedged item is sold or becomes impaired; and the ineffective portions of hedges are recorded in net earnings in the current period. We assess whether our derivatives hedging transactions are expected to be or were highly effective, both at the hedge’s inception and on an ongoing basis, in offsetting changes in fair values of hedged items. Hedging Transaction Measurement of Ineffectiveness Potential Sources of Ineffectiveness New York Mercantile Exchange (“NYMEX”) natural gas hedges Assessed on a prospective and retrospective basis using regression analyses Changes in: timing of forecast transactions volume delivered our credit risk or the credit risk of a counterparty Foreign exchange and interest rate Comparison of the cumulative changes in fair value and the cumulative change in the fair value of a hypothetical derivative with terms based on the hedged forecast cash flows Changes in: timing or amounts of forecasted cash flows embedded optionality our credit risk or the credit risk of a counterparty Financial assets and financial liabilities are offset, and the net amount is presented in the consolidated balance sheets when we currently have a legally enforceable right to offset the recognized amounts; andintend either to settle on a net basis, or to realize the assets and settle the liabilities simultaneously.
Receivables	Receivables Receivables from customers are recognized initially at fair value and subsequently measured at amortized cost less allowance for expected credit losses of receivables from customers. Vendors may offer various incentives to purchase products for resale. Vendor rebates and prepay discounts are accounted for as a reduction of the prices of the suppliers’ products. Rebates based on the amount of materials purchased reduce cost of goods sold as inventory is sold. Rebates earned based on sales volumes of products are offset to cost of goods sold. Rebates that are probable and can be reasonably estimated are accrued. Rebates that are not probable or estimable are accrued when certain milestones are achieved. Estimation of rebates can be complex in nature as vendor arrangements are diverse. The amount of the accrual is determined by analyzing and reviewing historical trends to apply negotiated rates to estimated and actual purchase volumes. Estimated amounts accrued throughout the year could also be impacted if actual purchase volumes differ from projected volumes.
Inventories	Inventories Inventories are valued monthly at the lower of cost and net realizable value. Costs are allocated to inventory using the weighted average cost method. Net realizable value is based on Products and Raw Materials Materials and Supplies selling price of the finished product (in ordinary course of business) less the estimated costs of completion and estimated costs to make the sale replacement cost A writedown is recognized if the carrying amount exceeds net realizable value and may be reversed if the circumstances that caused it no longer exist. Various factors impact our estimates of net realizable value, including inventory levels, forecasted prices of key production inputs, global nutrient capacities, crop price trends, climate-change initiatives, and changes in regulations and standards employed.
Property, Plant and Equipment	Property, Plant and Equipment Owned Right-of-Use (leased) Measurement cost, which includes capitalized borrowing costs, less accumulated depreciation and any accumulated impairment losses cost of major inspections and overhauls is capitalized maintenance and repair expenditures that do not improve or extend productive life are expensed in the period incurred cost less accumulated depreciation and any accumulated impairment losses lease payments are allocated between finance costs and a reduction of the liability, and discounted using the interest rate implicit in the lease, if available, or an incremental borrowing rate, being a rate that we would have to pay to borrow the funds required to obtain a similar asset, adjusted for term, security, asset value and the borrower’s economic environment Depreciation method certain property, plant and equipment directly related to our Potash, Nitrogen and Phosphate segments uses units-of-production based on the shorter of estimates of reserves or service lives pre-stripping costs uses units-of-production over the ore mined from the mineable acreage stripped remaining assets uses straight-line straight-line over the shorter of the asset's useful life and the lease term Estimated useful lives, expected patterns of consumption, depreciation method and residual values are reviewed at least annually. Judgment/practical expedients Judgment is required in determining costs, including income or expenses derived from an asset under construction, that are eligible for capitalization; timing to cease cost capitalization, generally when the asset is capable of operating in the manner intended by management, but also considering the circumstances and the industry in which the asset is to be operated, normally predetermined by management with reference to such factors as productive capacity; the appropriate level of componentization (for individual components for which different depreciation methods or rates are appropriate); repairs and maintenance that qualify as major inspections and overhauls; and useful life over which such costs should be depreciated, which may be impacted by changes in our strategy, process or operations as a result of climate-change initiatives. Judgment is required to determine whether a contract or arrangement includes a lease and if it is reasonably certain that an extension option will be exercised. We seek to maximize operational flexibility in managing our leasing activities by including extension options when negotiating new leases. Extension options are exercisable at our option and not by the lessors. In determining if a renewal period should be included in the lease term, we consider all relevant factors that create an economic incentive for us to exercise a renewal, including the location of the asset and the availability of suitable alternatives the significance of the asset to operations, and our business strategy. Estimation is used to determine the useful lives of ROU assets, the lease term and the appropriate discount rate applied to the lease payments to calculate the lease liability. Owned Right-of-Use (leased) Uncertainties are inherent in estimating reserve quantities, particularly as they relate to assumptions regarding future prices, the geology of our mines, the mining methods used, and the related costs incurred to develop and mine reserves. Changes in these assumptions could result in material adjustments to reserve estimates, which could result in impairments or changes to depreciation expense in future periods. We have chosen to include the use of a single discount rate for a portfolio of leases with reasonably similar characteristics, not separate non-lease components and instead to account for lease and non-lease components as a single arrangement, and use exemptions for short-term and low-value leases which allow payments to be expensed as incurred. Other Not applicable. Lease agreements do not contain significant covenants; however, leased assets may be used as security for lease liabilities and other borrowings.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill is carried at cost, is not amortized, and represents the excess of the cost of an acquisition over the fair value of the Company’s share of the net identifiable assets of the acquired subsidiary at the date of acquisition. Goodwill is allocated to a CGU or group of CGUs for impairment testing based on the level at which it is monitored by management, and not at a level higher than an operating segment. The allocation is made to the CGU or group of CGUs expected to benefit from the business combination in which the goodwill arose. Other intangible assets are generally measured at cost less accumulated amortization and any accumulated impairment losses. We use judgment to determine which expenditures are eligible for capitalization as intangible assets. Costs incurred internally from researching and developing a product are expensed as incurred until technological feasibility is established, at which time the costs are capitalized until the product is available for its intended use. Judgment is required in determining when technological feasibility of a product is established. Intangible assets with finite lives are amortized on a straight-line basis over their estimated useful lives. At least annually, the useful lives are reviewed and adjusted if appropriate.
Asset Retirement Obligations and Accrued Environmental Costs	Asset Retirement Obligations and Accrued Environmental Costs Asset retirement obligations and accrued environmental costs include: reclamation and restoration costs at our potash and phosphate mining operations, including management of materials generated by mining and mineral processing, such as various mine tailings and gypsum; land reclamation and revegetation programs; decommissioning of underground and surface operating facilities; general cleanup activities aimed at returning the areas to an environmentally acceptable condition; and post-closure care and maintenance. We consider the following factors as we estimate our provisions: environmental laws and regulations and interpretations by regulatory authorities, including updates on climate change, could change or circumstances affecting our operations could change, either of that could result in significant changes to current plans; the nature, extent and timing of current and proposed reclamation and closure techniques in view of present environmental laws and regulations; appropriate technical resources, including outside consultants, assist us in developing specific site closure and post-closure plans in accordance with the jurisdiction requirements; and timing of settlement of the obligations, which is typically correlated with mine life estimates except for certain land reclamation programs. It is reasonably possible that the ultimate costs could change in the future and that changes to these estimates could have a material effect on our consolidated financial statements. We review our estimates for any changes in assumptions at the end of each reporting period. We recognized contingent liabilities related to our business combinations or acquisitions, which represent additional environmental costs that are present obligations although cash outflows of resources are not probable. These contingent liabilities are subsequently measured at the higher of the amount initially recognized and the amount that would be recognized if the liability becomes probable.
Pension and Other Post-Retirement Benefits	Pension and Other Post-Retirement Benefits Employee retirement and other defined benefit plans costs, including current and past service costs, gains or losses on curtailments and settlements, and remeasurements, are actuarially determined on a regular basis using the projected unit credit method. When a plan amendment occurs before a settlement, we recognize past service cost before any gain or loss on settlement. Our discount rate assumptions are impacted by: the weighted average interest rate at which each pension and other post-retirement plan liability could be effectively settled at the measurement date;country specific rates; and the use of a yield curve approach based on the respective plans’ demographics, expected future pension benefits and medical claims. Payments are measured and discounted to determine the present value of the expected future cash flows. The cash flows are discounted using yields on high-quality AA-rated non-callable bonds with cash flows of similar timing where there is a deep market for such bonds. Where we do not believe there is a deep market for such bonds (such as for terms in excess of 10 years in Canada), the cash flows are discounted using a yield curve derived from yields on provincial bonds rated AA or better to which a spread adjustment is added to reflect the additional risk of corporate bonds.
Share-Based Compensation	Share-Based Compensation For awards with performance conditions that determine the number of options or units to which employees are entitled, measurement of compensation cost is based on our best estimate of the outcome of the performance conditions. Changes to vesting assumptions are reflected in earnings immediately for compensation cost already recognized. For Plans Settled Through the Issuance of Equity For Plans Settled Through Cash fair value for stock options is determined on grant date using the Black-Scholes-Merton option-pricing model, and fair value for PSUs is determined on grant date by projecting the outcome of performance conditions. a liability is recorded based on the fair value of the awards each period. Estimation involves determining: stock option-pricing model assumptions as described in the weighted average assumptions table in Note 5;forfeiture rate for options granted based on past experience and future expectations, and adjusted upon actual vesting;projected outcome of performance conditions for PSUs, including the relative ranking of our total shareholder return, including expected dividends, compared with a specified peer group using a Monte Carlo simulation option-pricing model; andthe number of dividend equivalent units expected to be earned.
Contingencies	Accounting Estimates and Judgments The following judgments are required to determine our exposure to possible losses and gains related to environmental matters and other various claims and lawsuits pending: prediction of the outcome of uncertain events (i.e., being virtually certain, probable, remote or undeterminable); determination of whether recognition or disclosure in the consolidated financial statements is required; and estimation of potential financial effects. Where no amounts are recognized, such amounts are contingent and disclosure may be appropriate. While the amount disclosed in the consolidated financial statements may not be material, the potential for large liabilities exists and, therefore, these estimates could have a material impact on our consolidated financial statements.
Principles of Consolidation	Basis of Consolidation These consolidated financial statements include the accounts of the Company and entities we control. Subsidiaries are fully consolidated from the date on which control is transferred to the Company until the date on which control ceases. They are deconsolidated from the date that control ceases. Intercompany balances and transactions are eliminated on consolidation. Principal (wholly owned) Operating Subsidiaries Location Principal Activity Potash Corporation of Saskatchewan Inc. Canada Mining and/or processing of crop nutrients and corporate functions Agrium Inc. Canada Manufacturer and distributor of crop nutrients and corporate functions Agrium Canada Partnership Canada Manufacturer and distributor of crop nutrients Agrium Potash Ltd. Canada Agrium U.S. Inc. US Cominco Fertilizer Partnership US Loveland Products Inc. US Nutrien Ag Solutions Argentina S.A Argentina Nutrien Ag Solutions (Canada) Inc. Canada Crop input retailer Nutrien Ag Solutions, Inc. US Nutrien Ag Solutions Limited Australia PCS Nitrogen Fertilizer, LP US Production of nitrogen products in the US PCS Nitrogen Ohio LP US Production of nitrogen products in the state of Ohio PCS Sales (USA) Inc. US Marketing and sales of the Company’s products PCS Nitrogen Trinidad Limited Trinidad Production of nitrogen products in Trinidad PCS Phosphate Company, Inc. US Mining and/or processing of phosphate products Phosphate Holding Company, Inc.USMining and/or processing of phosphate products and production of nitrogen products in the US
Long-Lived Asset Impairment	Impairment of Long-Lived Assets To assess impairment, assets are grouped at the smallest levels for which there are separately identifiable cash inflows that are largely independent of the cash inflows from other assets or groups of assets (this can be at the asset or CGU level). At the end of each reporting period, we review conditions to determine whether there is any indication that an impairment exists that could potentially impact the carrying amounts of both our long-lived assets to be held and used (including property, plant and equipment, and investments), and our goodwill and other intangible assets. When such indicators exist, impairment testing is performed. Regardless, goodwill is tested at least annually (in the fourth quarter). We review, at each reporting period, for possible reversal of the impairment for non-financial assets, other than goodwill. Estimates and judgment involves identifying the appropriate asset, group of assets, CGU or groups of CGUs; determining the appropriate discount rate for assessing the recoverable amount; making assumptions about future sales, market conditions, terminal growth rates and cash flow forecasts over the long-term life of the assets or CGUs; and evaluating impacts of climate change to our strategy, processes and operations. We cannot predict if an event that triggers impairment or a reversal of impairment will occur, when it will occur or how it will affect reported asset amounts. Asset impairment amounts previously recorded could be affected if different assumptions were used or if market and other conditions change. Such changes could result in non-cash charges materially affecting our consolidated financial statements.
Fair Value Measurements	Fair Value Measurements Estimated fair values for financial instruments are designed to approximate amounts for which the instruments could be exchanged in a current arm’s-length transaction between knowledgeable, willing parties. The valuation policies and procedures for financial reporting purposes are determined by our finance department. Fair value measurements are categorized into different levels within a fair value hierarchy based on the degree to which the lowest level inputs are observable and their significance: Level 1 Level 2 Level 3 Unadjusted quoted prices (in active markets accessible at the measurement date for identical assets or liabilities) Quoted prices (in markets that are not active or based on inputs that are observable for substantially the full term of the asset or liability) Prices or valuation techniques that require inputs that are both unobservable and significant to the overall measurement Fair value estimates are at a point in time and may change in subsequent reporting periods due to market conditions or other factors;can be determined using multiple methods, which can cause values (or a range of reasonable values) to differ; andmay require assumptions about costs/prices over time, discount and inflation rates, defaults, and other relevant variables.
Restructuring Charges	Restructuring Charges Plant shutdowns, sales of business units or other corporate restructurings may trigger restructuring charges. The provision is based on the best estimate of a detailed formal plan, which includes determining the incremental costs for employee termination, contract termination and other exit costs.
Foreign Currency Transactions	Foreign Currency Transactions The consolidated financial statements are presented in US dollars, which we determined to be the functional currency of the Company and the majority of our subsidiaries. In determining the functional currency of our operations, we primarily considered the currency that determines the pricing of transactions rather than focusing on the currency in which transactions are denominated. Foreign exchange gains and losses resulting from the settlement of foreign currency transactions, and from the translation at period-end of monetary assets and liabilities denominated in foreign currencies, are recognized and presented in the consolidated statements of earnings within other (income) expenses, as applicable, in the period in which they arise. Non-monetary assets measured at historical cost are translated at the average monthly exchange rate prevailing at the time of the transaction, unless the exchange rate in effect on the date of the transaction is available and it is apparent that such rate is a more suitable measurement.
Cash and Cash Equivalents	Cash and Cash Equivalents Highly liquid investments with a maturity of three months or less from the date of purchase are considered to be cash equivalents.
COVID 19	COVID-19 Due to the impact of the COVID-19 pandemic we have assessed our accounting estimates and other matters that require the use of forecasted financial information. The assessment included estimates of the unknown future impacts of the pandemic using information that is reasonably available at this time. Accounting estimates and other matters assessed include the allowance for expected credit losses of receivables from customers, valuation of inventory, goodwill and other long-lived assets, financial assets, tax assets, pension obligations and assets, and revenue recognition. Based on the current assessment, there was not a material impact on these consolidated financial statements. As a result of the pandemic, we incurred directly attributable and incremental COVID-19 related expenses in other (income) expenses (Note 6).
Standards Amendments and Interpretations Not Effective and Not Applied	Standards, Amendments and Interpretations Not Yet Effective and Not Applied The IASB and IFRIC have issued the following standards, amendments or interpretations to existing standards that were not yet effective and not applied as at December 31, 2021. The following amended standards will be adopted in 2022 and are not expected to have a material impact on our consolidated financial statements: Amendments IFRS 3, “Business Combinations” IAS 16, “Property, Plant and Equipment” IAS 37, “Provisions, Contingent Liabilities and Contingent Assets” – onerous contracts Annual improvements to IFRS 2018 – 2020 The following amended standards are being reviewed to determine the potential impact on our consolidated financial statements: IAS 1, “Presentation of Financial Statements” – classification of liabilities as current or non-currentIAS 1, “Presentation of Financial Statements” – IFRS Practice Statement 2 – disclosure of accounting policiesIAS 8, “Accounting Policies, Changes in Accounting Estimates and Errors” – definition of accounting estimatesIAS 12, “Income Taxes” IFRS 17, “Insurance Contracts”
Standards Amendments and Interpretations Effective and Applied	Standards, Amendments and Interpretations Effective and Applied The IASB and IFRS Interpretations Committee (“IFRIC”) have issued certain standards and amendments or interpretations to existing standards that were effective, and we have applied. In 2021, we have adopted the following amended standards and interpretations with no material impact on our consolidated financial statements: IFRIC Final Agenda, Cloud computing arrangements (refer to Note 6 for further details)Interest Rate Benchmark Reform - Phase 2, Amendments to IFRS 9, IAS 39, IFRS 7, IFRS 4 and IFRS 16
Climate Change	Climate Change In 2021, we announced our Environmental, Social and Governance (“ESG”) commitment to help address our key climate-related risks related to climate change and reduce our carbon footprint. There were also recent developments in the ESG frameworks and regulatory initiatives and we recognize that these developments could further impact our accounting estimates and judgments including, but not limited to, assessment of our asset useful lives, impairment of other long-lived assets, valuation of inventory, and asset retirement obligations and accrued environmental costs. We have monitored and will continue to monitor these developments as they affect our consolidated financial statements.

Description of Business (Tables

Description of Business (Tables)	12 Months Ended
Description of Business (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary Of Description of Business	The Company is a corporation organized under the laws of Canada with its registered head office located at Suite 1700, 211 19th Street East, Saskatoon, Saskatchewan, Canada, S7K 5R6. As at December 31, 2021, the Company had assets as follows: Segment Description Nutrien Ag Solutions (“Retail”) various retail facilities across the US, Canada, Australia and South America private label and proprietary crop protection products and nutritionals an innovative integrated digital platform for growers and crop consultants financing solutions provider in support of Nutrien’s agricultural product and service sales Potash 6 operations in the province of Saskatchewan Nitrogen 8 production facilities in North America: 4 in Alberta, 1 in Georgia, 1 in Louisiana, 1 in Ohio and 1 in Texas 1 large-scale operation in Trinidad 5 upgrade facilities in North America: 3 in Alberta, 1 in Missouri and 1 in Washington 50 percent investment in Profertil S.A. (“Profertil”), a nitrogen producer based in Argentina Phosphate 2 mines and processing plants: 1 in Florida and 1 in North Carolina phosphate feed plants in Illinois, Missouri and Nebraska 1 industrial phosphoric acid plant in Ohio Corporate and Othersinvestment in Canpotex Limited (“Canpotex”), a Canadian potash export, sales and marketing company owned in equal shares by Nutrien and another potash producer 22 percent investment in Sinofert Holdings Limited (“Sinofert”), a fertilizer supplier and distributor in China

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
Segment Information (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Financial Information on Segments	Corporate 2021 Retail Potash Nitrogen Phosphate and Others Eliminations Consolidated Sales – third party 17,665 4,021 4,216 1,810 ‐ ‐ 27,712 – intersegment 69 386 921 236 ‐ (1,612) ‐ Sales – total 17,734 4,407 5,137 2,046 ‐ (1,612) 27,712 Freight, transportation and distribution ‐ 371 448 217 ‐ (185) 851 Net sales 17,734 4,036 4,689 1,829 ‐ (1,427) 26,861 Cost of goods sold 13,134 1,285 2,963 1,408 ‐ (1,338) 17,452 Gross margin 4,600 2,751 1,726 421 ‐ (89) 9,409 Selling expenses 3,124 9 24 6 (21) ‐ 3,142 General and administrative expenses 168 8 15 11 275 ‐ 477 Provincial mining taxes ‐ 466 ‐ ‐ ‐ ‐ 466 Share-based compensation expense ‐ ‐ ‐ ‐ 198 ‐ 198 Impairment of assets (Note 13) ‐ 7 22 4 ‐ ‐ 33 Other expenses (income) 86 22 (64) 15 253 ‐ 312 Earnings (loss) before finance costs and income taxes 1,222 2,239 1,729 385 (705) (89) 4,781 Depreciation and amortization 706 488 557 151 49 ‐ 1,951 EBITDA 1 1,928 2,727 2,286 536 (656) (89) 6,732 Integration and restructuring related costs 10 ‐ ‐ ‐ 33 ‐ 43 Share-based compensation expense ‐ ‐ ‐ ‐ 198 ‐ 198 Impairment of assets (Note 13) ‐ 7 22 4 ‐ ‐ 33 COVID-19 coronavirus pandemic ("COVID-19") related expenses ‐ ‐ ‐ ‐ 45 ‐ 45 Foreign exchange loss, net of related derivatives ‐ ‐ ‐ ‐ 39 ‐ 39 Cloud computing transition adjustment (Note 6) 1 2 ‐ ‐ 33 ‐ 36 Adjusted EBITDA 1,939 2,736 2,308 540 (308) (89) 7,126 Assets 22,387 13,148 11,093 1,699 2,266 (639) 49,954 1 EBITDA is calculated as net earnings (loss) before finance costs, income taxes, and depreciation and amortization. Corporate 2020 Retail Potash Nitrogen Phosphate and Others Eliminations Consolidated Sales – third party 14,748 2,265 2,572 1,241 82 1 ‐ 20,908 – intersegment 37 248 628 202 ‐ (1,115) ‐ Sales – total 14,785 2,513 3,200 1,443 82 (1,115) 20,908 Freight, transportation and distribution ‐ 367 460 241 ‐ (213) 855 Net sales 14,785 2,146 2,740 1,202 82 (902) 20,053 Cost of goods sold 11,049 1,183 2,265 1,166 74 (923) 14,814 Gross margin 3,736 963 475 36 8 21 5,239 Selling expenses 2,795 9 27 6 (24) ‐ 2,813 General and administrative expenses 135 7 8 10 269 ‐ 429 Provincial mining taxes ‐ 201 1 ‐ 2 ‐ 204 Share-based compensation expense ‐ ‐ ‐ ‐ 69 ‐ 69 Impairment of assets (Note 13) ‐ 23 27 769 5 ‐ 824 Other expenses (income) 44 8 (288) 6 228 ‐ (2) Earnings (loss) before finance costs and income taxes 762 715 700 (755) (541) 21 902 Depreciation and amortization 668 452 599 218 52 ‐ 1,989 EBITDA 1,430 1,167 1,299 (537) (489) 21 2,891 Integration and restructuring related costs ‐ ‐ 4 ‐ 56 ‐ 60 Share-based compensation expense ‐ ‐ ‐ ‐ 69 ‐ 69 Impairment of assets (Note 13) ‐ 23 27 769 5 ‐ 824 COVID-19 related expenses ‐ ‐ ‐ ‐ 48 ‐ 48 Foreign exchange loss, net of related derivatives ‐ ‐ ‐ ‐ 19 ‐ 19 Loss on disposal of business ‐ ‐ ‐ ‐ 6 ‐ 6 Net gain on disposal of investment in MOPCO (Note 6) ‐ ‐ (250) ‐ ‐ ‐ (250) Adjusted EBITDA 1,430 1,190 1,080 232 (286) 21 3,667 Assets 2 20,526 12,032 10,612 1,462 2,983 (423) 47,192 1 Primarily relates to our non-core Canadian business, which was sold in 2020. 2 In 2021, we reassessed the appropriate segment wherein certain assets related to transportation, distribution and logistics should be categorized. After our evaluation was complete, we determined the assets should be categorized in the Potash, Nitrogen and Phosphate segments.
Summary of Sales by Product Line	Retail sales by product line Crop nutrients 7,290 5,200 Crop protection products 6,333 5,602 Seed 2,008 1,790 Merchandise 1,033 943 Nutrien Financial 189 129 Services and other 1,051 1,241 Nutrien Financial elimination 1 (170) (120) 17,734 14,785 Potash sales by geography Manufactured product North America 2,009 1,275 Offshore 2 2,398 1,238 4,407 2,513 Nitrogen sales by product line Manufactured product Ammonia 1,556 779 Urea 1,568 1,040 Solutions, nitrates and sulfates 1,274 816 Other nitrogen and purchased products 739 565 5,137 3,200 Phosphate sales by product line Manufactured product Fertilizer 1,250 838 Industrial and feed 574 454 Other phosphate and purchased products 222 151 2,046 1,443 1 Represents elimination for the interest and service fees charged by Nutrien Financial to Retail branches. 2 Relates to Canpotex (Note 28) and includes other revenue representing provisional pricing adjustments of $ 282 (2020 – $ (32) ).
Summary of Financial Information by Geographical Area	Sales - Third Party 1 Non-Current Assets 2 2021 2020 2021 2020 United States 16,009 12,373 15,095 15,268 Canada 3,094 2,565 17,766 17,435 Australia 3,591 3,231 1,202 1,305 Canpotex (Note 28) 2,398 1,238 ‐ ‐ Trinidad 258 101 638 644 Brazil 567 284 391 284 Other 1,795 3 1,116 3 340 280 27,712 20,908 35,432 35,216 1 Sales by location of customers. 2 Excludes financial instruments (other than equity-accounted investees), deferred tax assets and post-employment benefit assets. 3 Other third-party sales primarily relate to Argentina of $ 526 (2020 – $ 372 ), Europe of $ 236 (2020 – $ 183 ) and Others of $ 1,033 (2020 – $ 561 ).
Summary of Sales By Market	Canpotex Sales by market (%) 2021 2020 Latin America 38 32 China 11 22 India 6 14 Other Asian markets 35 25 Other markets 10 7

Nature of Expenses (Tables)

Nature of Expenses (Tables)	12 Months Ended
Nature of Expenses (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Detailed Information about Expenses by Nature	2021 2020 Purchased and produced raw materials and product for resale 1 14,711 12,110 Depreciation and amortization 1,951 1,989 Employee costs 2 3,007 2,450 Freight 1,023 963 Impairment of assets (Note 13) 33 824 Provincial mining taxes 3 466 204 Integration and restructuring related costs 43 60 Contract services 590 617 Lease expense 4 81 60 Fleet fuel, repairs and maintenance 302 222 COVID-19 related expenses (Note 6) 45 48 Cloud computing transition adjustment (Note 6) 36 ‐ Net gain on disposal of investment in MOPCO (Note 6) ‐ (250) Other 643 709 Total cost of goods sold and expenses 22,931 20,006 1 Significant expenses include: supplies, energy, fuel, purchases of raw material (natural gas – feedstock, sulfur, ammonia and reagents) and product for resale (crop nutrients and protection products, and seed). 2 Includes salaries and wages, employee benefits, and share-based compensation. 3 Includes Saskatchewan potash production tax, and Saskatchewan resource surcharge of $ 341 and $ 125 (2020 – $ 86 and $ 118 ), respectively, as required under Saskatchewan provincial legislation. 4 Includes lease expense relating to short-term leases, leases of low value and variable lease payments.

Share-Based Compensation (Table

Share-Based Compensation (Tables)	12 Months Ended
Share-Based Compensation (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Stock Awards Available for Grant	We have share-based compensation plans for eligible employees and directors as part of their remuneration package, including Stock Options, Performance Share Units (“PSUs”), Restricted Share Units (“RSUs”) and Deferred Share Units (“DSUs”). Plans Eligibility Granted Vesting Period Maximum Term Settlement Stock Options Officers and eligible employees Annually 25 percent per year over four years 10 years Shares 1 PSUs Officers and eligible employees Annually On third anniversary of grant date based on total shareholder return over a three-year performance cycle, compared to average total shareholder return of a peer group of companies over the same period Not applicable Cash RSUs Eligible employees Annually On third anniversary of grant date and not subject to performance conditions Not applicable Cash DSUs Non-executive directors At the discretion of the Board of Directors Fully vest upon grant Not applicable Cash 2 Stock Appreciation Rights ("SARs") / Tandem Stock Appreciation Rights ("TSARs") 3 Awards no longer granted; legacy awards only Awards no longer granted; legacy awards only 25 percent per year over four years 10 years Cash 1 Stock options may also be settled by cash settlement or, if approved by the Company, by a broker-assisted "cashless exercise" arrangement or a “net exercise” arrangement. 2 Directors can redeem their DSUs for cash only when they leave the Board of Directors for an amount equal to the market value of the common shares at the time of redemption or as mandated by the Nutrien DSU Plan. 3 Holders of TSARs have the ability to choose between (a) receiving in cash the price of our shares on the date of exercise in excess of the exercise price of the right or (b) receiving common shares by paying the exercise price of the right. Our past experience and future expectation is that substantially all TSAR holders will elect to choose the first option.
Summary of Stock Option Plans	Number of Shares Subject to Option Weighted Average Exercise Price 2021 2020 2021 2020 Outstanding – beginning of year 10,997,892 9,191,480 53.59 56.88 Granted 1,518,490 2,293,802 56.62 42.23 Exercised (4,336,682) (123,403) 45.24 42.24 Forfeited or cancelled (375,005) (34,506) 50.34 57.45 Expired (1,059,975) (329,481) 85.66 75.92 Outstanding – end of year 6,744,720 10,997,892 54.87 53.59
Summary of Stock Options Outstanding Range of Exercise Price	The following table summarizes information about our stock options outstanding as at December 31, 2021, with expiry dates ranging from May 2022 to February 2031: Options Outstanding Options Exercisable Weighted Weighted Weighted Average Average Average Remaining Exercise Exercise Range of Exercise Prices Number Life in Years Price Number Price $37.84 to $41.77 564,087 4 39.01 564,087 39.01 $41.78 to $43.36 1,559,353 7 42.23 142,206 42.23 $43.37 to $50.22 1,049,233 5 45.40 820,061 45.65 $50.23 to $55.08 1,178,225 5 53.11 671,391 52.78 $55.09 to $67.05 1,295,328 8 55.62 ‐ 1 ‐ $67.06 to $109.45 1,098,494 2 89.85 1,098,494 89.85 6,744,720 5 54.87 3,296,239 60.55 1 Options granted in this range of exercise prices have not yet met the vesting period.
Compensation Expense for all Employee and Director Share-based Compensation Plans	Units Granted Units Outstanding Compensation Expense in 2021 as at December 31, 2021 2021 2020 Stock Options 1,518,490 6,744,720 14 14 PSUs 757,212 2,174,490 104 31 RSUs 537,867 1,447,292 47 22 DSUs 27,478 373,779 12 2 SARs/TSARs ‐ 504,217 21 ‐ 198 69
Summary of Weighted Average Assumptions by Year of Grant	The weighted average assumptions by year of grant that impacted current year results are as follows: Year of Grant Assumptions Based On 2021 2020 Exercise price per option Quoted market closing price of common shares on the last trading day immediately preceding the date of the grant 56.64 42.23 Expected annual dividend yield (%) Annualized dividend rate as of the date of the grant 3.22 4.36 Expected volatility (%) Historical volatility of Nutrien's shares over a period commensurate with the expected life of the grant 29 29 Risk-free interest rate (%) Zero-coupon government issues implied yield available on equivalent remaining term at the time of the grant 1.11 1.51 Average expected life of options (years) Historical experience 8.5 8.5

Other Expenses (Tables)

Other Expenses (Tables)	12 Months Ended
Other Expenses (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Detailed Information About Other Income and Expenses	2021 2020 Integration and restructuring related costs 43 60 Foreign exchange loss, net of related derivatives 42 18 Earnings of equity-accounted investees (89) (73) Bad debt expense 26 6 COVID-19 related expenses (Note 30) 45 48 Cloud computing transition adjustment 36 ‐ Loss on disposal of business ‐ 6 Net gain on disposal of investment in MOPCO ‐ (250) Other expenses 209 183 312 (2)

Finance Costs (Tables)

Finance Costs (Tables)	12 Months Ended
Finance Costs (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Finance Costs	2021 2020 Interest expense Short-term debt 60 50 Long-term debt 415 392 Lease liabilities (Note 19) 33 34 COVID-19 related ‐ 19 Loss on early extinguishment of debt (Note 18) 142 ‐ Unwinding of discount on asset retirement obligations (Note 22) (9) 33 Interest on net defined benefit pension and other post-retirement plan obligations (Note 21) 9 13 Borrowing costs capitalized to property, plant and equipment (29) (20) Interest income (8) (1) 613 520

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Provision for Income Taxes	2021 2020 Current income tax Tax expense (recovery) for current year 1,033 (38) Adjustments in respect of prior years (13) (30) Total current income tax expense (recovery) 1,020 (68) Deferred income tax Origination and reversal of temporary differences (30) 72 Adjustments in respect of prior years 6 (58) Change in recognition of tax losses and deductible temporary differences (6) (20) Impact of tax rate changes (1) (3) Total deferred income tax recovery (31) (9) Income tax expense (recovery) included in net earnings 989 (77)
Summary of Total Income Tax Expense	The provision for income taxes differs from the amount that would have resulted from applying the Canadian statutory income tax rates to earnings (loss) before income taxes as follows: 2021 2020 Earnings (loss) before income taxes Canada 1,884 525 United States 1,319 (506) Trinidad 256 (44) Australia 204 83 Other 505 324 4,168 382 Canadian federal and provincial statutory income tax rate (%) 27 27 Income tax at statutory rates 1,125 103 Adjusted for the effect of: Impact of foreign tax rates (98) (18) Production-related deductions (24) (12) Non-taxable income (18) (59) Change in recognition of tax losses and deductible temporary differences (6) (20) Recovery of prior year taxes due to US legislative changes (4) (94) Non-deductible expenses 12 13 Foreign accrual property income 2 7 Other ‐ 3 Income tax expense (recovery) included in net earnings 989 (77)
Summary of Deferred Income Tax Assets (Liabilities)	Deferred Income Taxes In respect of each type of temporary difference, unused tax loss and unused tax credit, the amounts of deferred tax assets and liabilities recognized in the consolidated balance sheets as at December 31 and the amount of the deferred tax (recovery) expense recognized in net earnings were: Deferred Income Tax (Recovery) Deferred Income Tax (Assets) Expense Recognized Liabilities in Net Earnings 2021 2020 2021 2020 Deferred income tax assets Asset retirement obligations and accrued environmental costs (354) (376) 21 20 Tax loss and other carryforwards (297) (370) 75 (98) Pension and other post-retirement benefit liabilities (178) (161) (45) (12) Lease liabilities (151) (201) 47 26 Long-term debt (140) (102) (39) 3 Inventories (126) (37) (90) 20 Receivables (44) (50) 6 2 Payables and accrued charges (14) ‐ (14) 25 Other assets (1) (12) 11 17 Deferred income tax liabilities Property, plant and equipment 3,765 3,637 132 (12) Goodwill and other intangible assets 404 471 (64) (67) Payables and accrued charges ‐ 72 (72) 72 Other liabilities 39 36 1 (5) 2,903 2,907 ( 31 ) (9)
Summary of Reconciliation of Net Deferred Income Tax Liabilities	Reconciliation of net deferred income tax liabilities: 2021 2020 Balance – beginning of year 2,907 2,896 Income tax recovery recognized in net earnings (31) (9) Income tax charge recognized in other comprehensive income ("OCI") 30 17 Other (3) 3 Balance – end of year 2,903 2,907
Summary of Amounts and Expiry Dates of Unused Tax Losses and Unused Tax Credits	Amounts and expiry dates of unused tax losses and unused tax credits as at December 31, 2021, were: Amount Expiry Date Unused federal operating losses 1,206 2022 – Indefinite Unused federal capital losses 589 Indefinite Unused investment tax credits 22 2022 – 2040

Net Earnings per Share (Tables)

Net Earnings per Share (Tables)	12 Months Ended
Net Earnings per Share (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Weighted Average Number of Shares Reconciliation from Common to Diluted common	2021 2020 Weighted average number of common shares 569,664,000 569,657,000 Dilutive effect of stock options 1,625,000 29,000 Weighted average number of diluted common shares 571,289,000 569,686,000
Summary of Options Excluded from Calculation of Diluted Net Earnings per Share	Options excluded from the calculation of diluted net earnings per share due to the option exercise prices being greater than the average market price of common shares were as follows: 2021 2020 Number of options excluded 2,393,822 9,875,797 Performance option plan years fully excluded 1 2012 - 2015 2011 – 2017 Stock option plan years fully excluded 2021 2015, 2017 – 2020 1 Previously granted under a legacy long-term incentive plan.

Financial Instruments and Rel_2

Financial Instruments and Related Risk Management (Tables)	12 Months Ended
Financial Instruments and Related Risk Management (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Credit Risk Management Through Policies	Our ELT, along with the Board of Directors (including Board of Directors committees), is responsible for monitoring our risk exposures and managing our policies to address these risks. Our strategic and risk management processes are integrated to ensure we understand the benefit from the relationship between strategy, risk and value creation. Outlined below are our risk management strategies we have developed to mitigate the financial market risks that we are exposed to. Credit Risk Risk Management Strategies Receivables from customers establish credit approval policies and procedures for new and existing customers extend credit to qualified customers through: review of credit agency reports, financial statements and/or credit references, as available review of existing customer accounts every 12 to 24 months based on the credit limit amounts evaluation of customer and country risk for international customers establish credit period: 15 and 30 days for wholesale fertilizer customers 30 days for industrial and feed customers 30 to 360 days for Retail customers, including Nutrien Financial up to 180 days for select export sales customers, including Canpotex transact on a cash basis with certain customers who may not meet specified benchmark creditworthiness or cannot provide other evidence of ability to pay execute agency arrangements with financial institutions or other partners with which we have only a limited recourse involvement sell receivables to financial institutions which substantially transfer the risks and rewards set eligibility requirements for Nutrien Financial to limit the risk of the receivables may require security over certain crop or livestock inventories set up provision using the lifetime expected credit loss method considering all possible default events over the expected life of a financial instrument. Receivables are grouped based on days past due and/or customer credit risk profile. Estimated losses on receivables are based on known troubled accounts and historical experience of losses incurred. Receivables are considered to be in default and are written off against the allowance when it is probable that all remaining contractual payments due will not be collected in accordance with the terms of the agreement. Cash and cash equivalents and other receivables require acceptable minimum counterparty credit ratings limit counterparty or credit exposure select counterparties with investment-grade quality
Summary of Maximum Exposure to Credit Risk	Maximum exposure to credit risk as at December 31: 2021 2020 Cash and cash equivalents 499 1,454 Receivables (excluding income tax receivable) 5,143 3,543 5,642 4,997
Summary of Maturity Analysis of Financial Liabilities and Gross Settled Derivative Contracts	The following maturity analysis of our financial liabilities and gross settled derivative contracts (for which the cash flows are settled simultaneously) is based on the expected undiscounted contractual cash flows from the date of the consolidated balance sheets to the contractual maturity date. Carrying Amount Contractual of Liability as at Cash Within 1 to 3 3 to 5 Over 5 2021 December 31 Flows 1 Year Years Years Years Short-term debt 1 1,560 1,560 1,560 ‐ ‐ ‐ Payables and accrued charges 2 8,861 8,861 8,861 ‐ ‐ ‐ Long-term debt, including current portion 1 8,066 13,071 890 1,163 1,678 9,340 Lease liabilities, including current portion 1 1,220 1,375 313 423 227 412 Derivatives 20 20 20 ‐ ‐ ‐ 19,727 24,887 11,644 1,586 1,905 9,752 1 Contractual cash flows include contractual interest payments related to debt obligations and lease liabilities. Interest rates on debt with variable rates are based on the prevailing rates as at December 31, 2021. 2 Excludes non-financial liabilities and includes payables of approximately $ 1.7 billion related to our prepaid inventory to secure product discounts. We consider these payables to be part of our working capital. For these payables, we participated in arrangements where the vendors sold their right to receive payment to financial institutions without extending the original payment terms. These payables were paid in January 2022.
Summary of Material Foreign Currency Derivatives	Foreign Exchange Risk Risk Management Strategies Foreign currency denominated accountsexecute foreign currency derivative contracts within certain prescribed limits for both forecast operating and capital expenditures to manage the earnings impact, including those related to our equity-accounted investees, that could occur from a reasonably possible strengthening or weakening of the US dollar
Summary of Natural Gas Derivatives Outstanding	Market Risks Type Risk Management Strategies Interest rate Short-term and long-term debt use a portfolio of fixed and floating rate instruments align current and long-term assets with demand and fixed-term debt monitor the effects of market changes in interest rates use interest rate swaps, if desired We do not believe we have material exposure to interest or price risk on our financial instruments as at December 31, 2021 and 2020. Price Natural gas derivative instruments diversify our forecast gas volume requirements, including a portion of annual requirements purchased at spot market prices, a portion at fixed prices (up to 10 years) and a portion indexed to the market price of ammonia acquire a reliable supply of natural gas feedstock and fuel on a location-adjusted, cost-competitive basis Price Investment at fair value ensure the security of principal amounts invested provide for an adequate degree of liquidity achieve a satisfactory return In 2020, we entered into cash flow hedges on our interest rate derivative contracts that matured in the same year and had a total notional amount of $ 680 .
Summary of Recognized Financial Instruments that are Offset, or Subject to Enforceable Master Netting Arrangements	The following table presents our fair value hierarchy for financial instruments carried at fair value on a recurring basis or measured at amortized cost and require fair value disclosure: 2021 2020 Carrying Carrying Financial assets (liabilities) measured at Amount Level 1 Level 2 Level 3 Amount Level 1 Level 2 Fair value on a recurring basis 1 Cash and cash equivalents 499 ‐ 499 ‐ 1,454 ‐ 1,454 Derivative instrument assets 19 ‐ 19 ‐ 45 ‐ 45 Other current financial assets – marketable securities 2 134 19 115 ‐ 161 24 137 Investments at fair value through other comprehensive income ("FVTOCI") (Note 15) 244 234 ‐ 10 153 153 ‐ Derivative instrument liabilities (20) ‐ (20) ‐ (48) ‐ (48) Amortized cost Current portion of long-term debt Notes and debentures (500) (506) ‐ ‐ ‐ ‐ ‐ Fixed and floating rate debt (45) ‐ (45) ‐ (14) ‐ (14) Long-term debt Notes and debentures (7,424) (4,021) (4,709) ‐ (9,994) (3,801) (7,955) Fixed and floating rate debt (97) ‐ (97) ‐ (53) ‐ (53) 1 During 2021 and 2020, there were no transfers between levelling for financial instruments measured at fair value on a recurring basis. Our policy is to recognize transfers at the end of the reporting period. 2 Marketable securities consist of equity and fixed income securities.
Summary of Fair Value Hierarchy for Financial Assets and Financial Liabilities	Fair Value Financial instruments included in the consolidated balance sheets are measured either at fair value or amortized cost. The following tables explain the valuation methods used to determine the fair value of each financial instrument and its associated level in the fair value hierarchy. Financial Instruments at Fair Value Fair Value Method Cash and cash equivalents Carrying amount (approximation to fair value assumed due to short-term nature) Equity securities Closing bid price of the common shares as at the balance sheet date Debt securities Closing bid price of the debt or other instruments with similar terms and credit risk (Level 2) as at the balance sheet date Foreign currency derivatives not traded in an active market Quoted forward exchange rates (Level 2) as at the balance sheet date Foreign exchange forward contracts, swaps and options and natural gas swaps not traded in an active market Based on a discounted cash flow model. Inputs included contractual cash flows based on prices for natural gas futures contracts, fixed prices and notional volumes specified by the swap contracts, the time value of money, liquidity risk, our own credit risk (related to instruments in a liability position) and counterparty credit risk (related to instruments in an asset position). Futures contract prices used as inputs in the model were supported by prices quoted in an active market and therefore categorized in Level 2. Financial Instruments at Amortized Cost Fair Value Method Receivables, short-term debt and payables and accrued charges Carrying amount (approximation to fair value assumed due to short-term nature) Long-term debt Quoted market prices (Level 1 or 2 depending on the market liquidity of the debt) Other long-term debt instruments Carrying amount

Receivables (Tables)

Receivables (Tables)	12 Months Ended
Receivables (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Receivables

Inventories (Tables)

Inventories (Tables)	12 Months Ended
Inventories (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Inventories	2021 2020 Product purchased for resale 4,889 3,655 Finished products 410 384 Intermediate products 206 227 Raw materials 337 215 Materials and supplies 486 449 6,328 4,930

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
Property, Plant and Equipment (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Reconciliation of Changes in Property Plant and Equipment	Machinery Mine Land and Buildings and and Development Assets Under Improvements Improvements Equipment Costs Construction Total Useful life range (years) 4 – 85 1 – 65 1 – 80 1 – 60 n/a Carrying amount – December 31, 2020 1,090 6,305 10,336 723 1,206 19,660 Acquisitions (Note 25) 2 3 5 ‐ ‐ 10 Additions 7 18 97 ‐ 1,646 1,768 Additions – ROU assets ‐ 140 238 ‐ ‐ 378 Disposals (29) (21) (35) ‐ (1) (86) Transfers 38 142 874 145 (1,199) ‐ Foreign currency translation and other 2 (34) (41) 55 (83) (101) Depreciation (35) (191) (991) (70) ‐ (1,287) Depreciation – ROU assets (2) (57) (248) ‐ ‐ (307) Impairment ‐ ‐ (14) ‐ (5) (19) Carrying amount – December 31, 2021 1,073 6,305 10,221 853 1,564 20,016 Balance – December 31, 2021 comprised of: Cost 1,547 8,584 20,627 2,496 1,564 34,818 Accumulated depreciation and impairments (474) (2,279) (10,406) (1,643) ‐ (14,802) Carrying amount – December 31, 2021 1,073 6,305 10,221 853 1,564 20,016 Balance – December 31, 2021 comprised of: Owned property, plant and equipment 1,044 5,930 9,517 853 1,564 18,908 ROU assets 29 375 704 ‐ ‐ 1,108 Carrying amount – December 31, 2021 1,073 6,305 10,221 853 1,564 20,016 Carrying amount – December 31, 2019 1,160 6,409 10,641 747 1,378 20,335 Acquisitions (Note 25) 8 27 42 ‐ ‐ 77 Additions 25 91 224 1 1,077 1,418 Additions – ROU assets ‐ 24 299 ‐ ‐ 323 Disposals (5) (9) (34) ‐ ‐ (48) Transfers 46 58 923 164 (1,191) ‐ Foreign currency translation and other (15) ‐ 30 30 (10) 35 Depreciation (39) (198) (1,060) (82) ‐ (1,379) Depreciation – ROU assets (2) (55) (222) ‐ ‐ (279) Impairment (88) (42) (507) (137) (48) (822) Carrying amount – December 31, 2020 1,090 6,305 10,336 723 1,206 19,660 Balance – December 31, 2020 comprised of: Cost 1,530 8,377 19,730 2,279 1,206 33,122 Accumulated depreciation and impairments (440) (2,072) (9,394) (1,556) ‐ (13,462) Carrying amount – December 31, 2020 1,090 6,305 10,336 723 1,206 19,660 Balance – December 31, 2020 comprised of: Owned property, plant and equipment 1,061 5,986 9,665 723 1,206 18,641 ROU assets 29 319 671 ‐ ‐ 1,019 Carrying amount – December 31, 2020 1,090 6,305 10,336 723 1,206 19,660
Summary of Depreciation of Property Plant and Equipment	Depreciation of property, plant and equipment was included in the following: 2021 2020 Freight, transportation and distribution 133 138 Cost of goods sold 1,052 1,111 Selling expenses 416 393 General and administrative expenses 36 56 Depreciation recorded in earnings 1,637 1,698 Depreciation recorded in inventory 112 132
Impairment of Assets	In 2020, we recorded the following impairments: Cash-generating units ("CGUs") Aurora White Springs Segment Phosphate Impairment indicator Lower long-term forecasted global phosphate prices Pre-tax impairment loss ($) 545 215 Pre-tax recoverable amount ($) n/a 160 Post-tax recoverable amount ($) 995 n/a Valuation technique Fair value less costs of disposal ("FVLCD") a Level 3 measurement Value in use ("VIU") Key assumptions End of mine life (proven and probable reserves) (year) 2050 2029 Pre-tax discount rate (%) n/a 16.0 Post-tax discount rate (%) 10.5 12.0

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
Goodwill and Other Intangible Assets (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Reconciliation of Intangible Assets	Other Intangibles Customer Trade Goodwill Relationships 2 Technology Names Other Total Useful life range (years) n/a 5 – 15 2 – 24 1 – 20 ³ 1 – 30 Carrying amount – December 31, 2020 12,198 1,515 437 75 361 2,388 Acquisitions (Note 25) 77 16 ‐ ‐ ‐ 16 Additions – internally developed ‐ ‐ 118 19 9 146 Foreign currency translation and other (49) (15) 143 (3) 13 138 Disposals (6) ‐ ‐ ‐ ‐ ‐ Cloud computing transition adjustment (Note 6) ‐ ‐ (34) ‐ ‐ (34) Amortization 1 ‐ (166) (69) (11) (68) (314) Carrying amount – December 31, 2021 12,220 1,350 595 80 315 2,340 Balance – December 31, 2021 comprised of: Cost 12,227 1,961 808 127 619 3,515 Accumulated amortization and impairment (7) (611) (213) (47) (304) (1,175) Carrying amount – December 31, 2021 12,220 1,350 595 80 315 2,340 Carrying amount – December 31, 2019 11,986 1,584 351 62 431 2,428 Acquisitions (Note 25) 167 74 2 8 6 90 Additions – internally developed ‐ ‐ 106 ‐ 16 122 Foreign currency translation and other 45 22 20 14 (22) 34 Disposals ‐ ‐ (3) ‐ ‐ (3) Amortization 1 ‐ (165) (39) (9) (70) (283) Carrying amount – December 31, 2020 12,198 1,515 437 75 361 2,388 Balance – December 31, 2020 comprised of: Cost 12,205 1,971 544 111 597 3,223 Accumulated amortization and impairment (7) (456) (107) (36) (236) (835) Carrying amount – December 31, 2020 12,198 1,515 437 75 361 2,388 1 Amortization of $ 260 was included in selling expenses during the year ended December 31, 2021 (2020 – $ 254 ). 2 The average remaining amortization period of customer relationships as at December 31, 2021, was approximately 5 years. 3 Certain trade names have indefinite useful lives as there are no regulatory, legal, contractual, cooperative, economic or other factors that limit their useful lives.
Summary of Terminal Growth Rate and Curresponding Breakeven Discount Rate	We performed our annual impairment test on goodwill and did not identify any impairment; however, the recoverable amount for Retail – North America did not substantially exceed its carrying amount. In testing for impairment of goodwill, we calculate the recoverable amount for a CGU or groups of CGUs containing goodwill. We used the FVLCD methodology based on after-tax discounted cash flows (five-year projections and a terminal year thereafter) and incorporated assumptions an independent market participant would apply including considerations related to climate-change initiatives. We adjusted discount rates for each CGU or group of CGUs for the risk associated with achieving our forecasts (five-year projections) and for the country risk premium in which we expect to generate cash flows. FVLCD is a Level 3 measurement. We use our market capitalization and comparative market multiples to corroborate discounted cash flow results. The key assumptions with the greatest influence on the calculation of the recoverable amounts are the discount rates, terminal growth rates and cash flow forecasts. The key forecast assumptions were based on historical data and estimates of future results from internal sources as well as industry and market trends. Terminal Growth Rate (%) Discount Rate (%) 2021 2020 2021 2020 Retail – North America 2.5 2.5 7.4 7.5 Retail – International 1 2.0 - 6.2 2.0 8.0 - 15.5 7.8 - 16.0 Potash 2.5 2.5 7.7 8.0 Nitrogen 2.0 2.0 7.8 8.0 1 The discount rates reflect the country risk premium and size for our international groups of CGUs.
Summary of Key Assumptions, Change In Retail Segment Recoverable Amount	The following table indicates the percentage by which key assumptions would need to change individually for the estimated recoverable amount to be equal to the carrying amount: Change Required for Carrying Amount to Equal Value Used in Impairment Key Assumptions Recoverable Amount Model Terminal growth rate (%) 0.8 percentage point decrease 2.5 Forecasted EBITDA over forecast period (in billions of US dollars) 9.8 percent decrease 6.8 Discount rate (%) 0.6 percentage point increase 7.4

Investments (Tables)

Investments (Tables)	12 Months Ended
Investments (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Financial information of the company's proportionate interest in equity-accounted investees	Principal Place Proportion of Ownership Interest of Business and and Voting Rights Held (%) Carrying Amount Name Principal Activity Incorporation 2021 2020 2021 2020 Equity-accounted investees Profertil Nitrogen Producer Argentina 50 50 277 233 Canpotex Marketing and Logistics Canada 50 50 ‐ ‐ Other associates and joint ventures 182 176 Total equity-accounted investees 459 409 Investments at FVTOCI Sinofert Fertilizer Supplier and Distributor China/Bermuda 22 22 234 153 Other 10 ‐ Total investments at FVTOCI 244 153 Total investments 703 562

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
Other Assets (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Other Assets	2021 2020 Deferred income tax assets (Note 8) 262 242 Ammonia catalysts – net of accumulated amortization of $85 (2020 – $76) 88 89 Long-term income tax receivable (Note 8) 166 305 Accrued pension benefit assets (Note 21) 170 109 Other 143 169 829 914

Short-Term Debt (Tables)

Short-Term Debt (Tables)	12 Months Ended
Short-Term Debt (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Short-Term Debt	Rate of Interest (%) 2021 2020 Other credit facilities 1 0.8 - 13.1 313 159 Commercial paper 2 0.3 - 0.4 1,170 ‐ Other short-term debt 77 ‐ 1,560 159 1 Credit facilities are unsecured and consist of South American facilities with debt of $ 74 (2020 – $ 109 ) and interest rates ranging from 1.8 percent to 13.1 percent, Australian facilities with debt of $ 211 (2020 – $ 19 ) and interest rates ranging from 0.8 percent to 0.9 percent, and other facilities with debt of $ 28 (2020 – $ 31 ) and an interest rate of 1.4 percent. 2 The amount available under the commercial paper program is limited to the availability of backup funds under the Nutrien Credit Facility and excess cash invested in highly liquid securities
Disclosure of Credit Facilities	Credit facilities Total Facility Limit as at December 31, 2021 Total Facility Limit as at December 31, 2020 Nutrien Credit Facility 1 4,500 4,500 Uncommitted revolving demand facility 500 500 Other credit facilities 2 720 740 1 In 2021, we extended the maturity date from April 10, 2023 to June 4, 2026, subject to extension at the request of Nutrien provided that the resulting maturity date shall not exceed five years from the date of request. 2 Total facility limit amounts include some facilities with maturities in excess of one year.

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
Long-Term Debt (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Long-Term Debt	Rate of Interest (%) Maturity 2021 2020 Notes 1 3.150 October 1, 2022 500 500 1.900 May 13, 2023 500 500 3.500 June 1, 2023 ‐ 500 3.625 March 15, 2024 ‐ 750 3.375 March 15, 2025 ‐ 550 3.000 April 1, 2025 500 500 4.000 December 15, 2026 500 500 4.200 April 1, 2029 750 750 2.950 May 13, 2030 500 500 4.125 March 15, 2035 450 450 7.125 May 23, 2036 212 300 5.875 December 1, 2036 500 500 5.625 December 1, 2040 500 500 6.125 January 15, 2041 401 500 4.900 June 1, 2043 500 500 5.250 January 15, 2045 489 500 5.000 April 1, 2049 750 750 3.950 May 13, 2050 500 500 Debentures 1 7.800 February 1, 2027 120 125 Other credit facilities 2 Various Various 141 67 7,813 9,742 Add net unamortized fair value adjustments 325 404 Less net unamortized debt issue costs (72) (85) 8,066 10,061 Less current maturities (545) (14) 7,521 10,047 1 Each series of notes and debentures is unsecured and has no sinking fund requirements prior to maturity. Each series is redeemable and has various provisions that allow redemption prior to maturity, at our option, at specified prices. 2 Other credit facilities are unsecured and consist of South American facilities with debt of $ 137 (2020 – $ 63 ) and interest rates ranging from 1.9 percent to 12.2 percent and other facilities with debt of $ 4 (2020 – $ 4 ) and an interest rate of 3.9 percent.
Disclosure of reconciliation of liabilities arising from financing activities [text block]	Short-Term Long-Term Lease Debt Debt Liabilities Total Balance – December 31, 2020 159 10,061 1,140 11,360 Cash flows (cash inflows and outflows presented on a net basis) 1,344 (2,133) (320) (1,109) Loss on early extinguishment of debt ‐ 142 ‐ 142 Additions and other adjustments to ROU assets ‐ ‐ 408 408 Foreign currency translation and other non-cash changes 57 (4) (8) 45 Balance – December 31, 2021 1,560 8,066 1,220 10,846 Balance – December 31, 2019 976 9,055 1,073 11,104 Cash flows (cash inflows and outflows presented on a net basis) (892) 1,017 (274) (149) Additions and other adjustments to ROU assets ‐ ‐ 320 320 Foreign currency translation and other non-cash changes 75 (11) 21 85 Balance – December 31, 2020 159 10,061 1,140 11,360

Lease Liabilities (Tables)

Lease Liabilities (Tables)	12 Months Ended
Lease Liabilities (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Disclosure Of Finance Lease And Operating Lease By Lessee Explanatory	Average Rate of Interest (%) 2021 2020 Lease liabilities - non-current 2.9 934 891 Current portion of lease liabilities 2.5 286 249 Total 1,220 1,140

Payables and Accrued Charges (T

Payables and Accrued Charges (Tables)	12 Months Ended
Payables and Accrued Charges (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Payables and Accrued Charges	2021 2020 Trade and other payables 5,179 4,415 Customer prepayments 2,083 1,800 Dividends 257 256 Accrued compensation 669 513 Current portion of asset retirement obligations and accrued environmental costs (Note 22) 170 162 Accrued interest 80 99 Current portion of share-based compensation (Note 5) 185 95 Current portion of derivatives 20 39 Income taxes (Note 8) 606 48 Current portion of pension and other post-retirement benefits (Note 21) 16 15 Other accrued charges and others 787 616 10,052 8,058

Pension and Other Post-Retire_2

Pension and Other Post-Retirement Benefits (Tables)	12 Months Ended
Pension and Other Post-Retirement Benefits (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Movements in Pension and Other Post-Retirement Benefit Assets (Liabilities)	Financial Information 2021 2020 Plan Plan Obligation Assets Net Obligation Assets Net Balance – beginning of year (2,066) 1,706 (360) (2,044) 1,621 (423) Components of defined benefit expense recognized in earnings Current service cost for benefits earned during the year (36) ‐ (36) (36) ‐ (36) Interest (expense) income (57) 48 (9) (66) 53 (13) Past service cost, including curtailment gains and settlements 1 (2) ‐ (2) 133 (132) 1 Foreign exchange rate changes and other (7) (1) (8) (3) (1) (4) Subtotal of components of defined benefit expense (recovery) recognized in earnings (102) 47 (55) 28 (80) (52) Remeasurements of the net defined benefit liability recognized in OCI during the year Actuarial gain arising from: Changes in financial assumptions 6 ‐ 6 (153) ‐ (153) Changes in demographic assumptions 83 ‐ 83 12 ‐ 12 Gain on plan assets (excluding amounts included in net interest) 3 33 36 ‐ 230 230 Subtotal of remeasurements 92 33 125 (141) 230 89 Cash flows Contributions by plan participants (6) 6 ‐ (5) 5 ‐ Employer contributions ‐ 25 25 ‐ 26 26 Benefits paid 86 (86) ‐ 96 (96) ‐ Subtotal of cash flows 80 (55) 25 91 (65) 26 Balance – end of year 2 (1,996) 1,731 (265) (2,066) 1,706 (360) Balance comprised of: Non-current assets Other assets (Note 16) 170 109 Current liabilities Payables and accrued charges (Note 20) (16) (15) Non-current liabilities Pension and other post-retirement benefit liabilities (419) (454) 1 During 2020, we transferred certain pension plan obligations to an insurance company. 2 Obligations arising from funded and unfunded pension plans are $ 1,659 and $ 337 (2020 – $ 1,690 and $ 376 ), respectively. Other post-retirement benefit plans have no plan assets and are unfunded.
Summary of Fair Value of Plan Assets of the Defined Benefit Pension Plans, by Asset Category	Plan Assets As at December 31, the fair value of plan assets of our defined benefit pension plans, by asset category, were as follows: 2021 2020 Quoted Prices Quoted Prices in Active in Active Markets for Markets for Identical Assets Other 1 Total Identical Assets Other 1 Total Cash and cash equivalents 11 7 18 9 33 42 Equity securities and equity funds US 2 22 257 279 19 483 502 International ‐ 28 28 158 ‐ 158 Debt securities 2, 3 ‐ 1,020 1,020 ‐ 977 977 Other 2 ‐ 386 386 ‐ 27 27 Total pension plan assets 33 1,698 1,731 186 1,520 1,706 1 Approximately 100 percent (2020 – 76 percent) of the Other plan assets are held in funds whose fair values are estimated using their net asset value per share. For the majority of these funds, the redemption frequency is immediate. The Plan Committee manages the asset allocation based upon our current liquidity and income needs. 2 Certain funds have been reclassified for the year ended December 31, 2020. 3 Debt securities included US securities of 71 percent (2020 – 60 percent) and International securities of 28 percent (2020 – 40 percent) and Mortgage Backed Securities of 1 percent (2020 – nil). We use letters of credit or surety bonds to secure certain Canadian unfunded defined benefit plan liabilities as at December 31, 2021. We expect to contribute approximately $ 115 to all pension and post-retirement plans in 2022. Total contributions recognized as expense under all defined contribution plans for 2021 was $ 111 (2020 – $ 116 ).
Summary of Significant Assumptions Used to Determine Benefit Obligations and Expense	Pension Other 2021 2020 2021 2020 Assumptions used to determine the benefit obligations 1 : Discount rate (%) 3.09 2.83 2.97 2.66 Rate of increase in compensation levels (%) 4.27 4.57 n/a n/a Medical cost trend rate – assumed (%) 2 n/a n/a 4.50 - 6.50 4.50 - 5.80 Medical cost trend rate – year reaches ultimate trend rate n/a n/a 2030 2037 Mortality assumptions (years) 3 Life expectancy at 65 for a male member currently at age 65 20.7 20.6 20.6 20.2 Life expectancy at 65 for a female member currently at age 65 22.9 22.8 23.2 22.8 Average remaining service period of active employees (years) ‐ ‐ ‐ ‐ Average duration of the defined benefit obligations (years) 4 15.3 15.4 14.9 15.2 1 The current year’s expense is determined using the assumptions that existed at the end of the previous year. 2 We assumed a graded medical cost trend rate starting at 6.50 percent in 2021, moving to 4.50 percent by 2030 (2020 – starting at 5.80 percent, moving to 4.50 percent by 2037). 3 Based on actuarial advice in accordance with the latest available published tables, adjusted where appropriate to reflect future longevity improvements for each country. 4 Weighted average length of the underlying cash flows.
Summary of Significant Assumptions, Change in Discount Rates has Greatest Potential Impact	Of the most significant assumptions, a change in discount rates has the greatest potential impact on our pension and other post-retirement benefit plans, with sensitivity to change as follows: 2021 2020 Expense in Expense in Benefit Earnings Before Benefit Earnings Before Change in Assumption Obligations Income Taxes Obligations Income Taxes As reported 1,996 55 2,066 52 Discount rate 1.0 percentage point decrease 330 20 360 10 1.0 percentage point increase( 260 ) ( 20 ) ( 280 ) (10)

Asset Retirement Obligations _2

Asset Retirement Obligations and Accrued Environmental Costs (Tables)	12 Months Ended
	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Sensitivity of Asset Retirement Obligations and Accrued Environmental Costs to Changes in Discount Rate on Recorded Liability	The pre-tax risk-free discount rate, expected cash flow payments and sensitivity to changes in the discount rate on the recorded liability for asset retirement obligations and accrued environmental costs as at December 31, 2021, were as follows: Cash Flow Discounted Discount Rate Payments (years) 1 Cash Flows 2,3 +0.5% -0.5% Asset retirement obligations (75) 85 Retail 1 – 30 23 Potash 31 – 440 96 Phosphate 1 – 79 496 Corporate and other 4,5 1 – 485 616 Accrued environmental costs (5) 5 Retail 1 – 30 86 Corporate and other 1 – 24 419 Total 1,736 1 Time frame in which payments are expected to principally occur from December 31, 2021. Adjustments to the years can result from changes to the mine life and/or changes in the rate of tailings volumes. 2 Risk-free discount rates used to discount cash flows reflect current market assessments of the time value of money and the risks specific to the timing and jurisdiction of the obligation. Risk-free rates range from 1.9 percent to 5.5 percent. 3 Total undiscounted cash flows are $ 3.3 billion. For the Potash segment, this represents total undiscounted cash flows in the first year of decommissioning. This excludes subsequent years of tailings dissolution, fine tails capping, tailings management area reclamation, post-reclamation activities and monitoring, and final decommissioning, which are estimated to take an additional 126 to 409 years. 4 For nitrogen sites, we have not recorded any asset retirement obligations as no significant asset retirement obligations have been identified or there is no reasonable basis for estimating a date or range of dates of cessation of operations. We considered the historical performance of our facilities as well as our planned maintenance, major upgrades and replacements, which can extend the useful lives of our facilities indefinitely. 5 Includes certain potash and phosphate sites that are non-operating sites, with the majority of phosphate site payments taking place over the next 18 years.
Summary of Reconciliation of Asset Retirement, Environmental Restoration Obligations	Asset Accrued Retirement Environmental Obligations Costs Total Balance – December 31, 2020 1,209 550 1,759 Disposals ‐ (4) (4) Additional provisions 22 1 23 Change in estimates 78 (1) 77 Settlements (89) (27) (116) Accretion 12 (21) (9) Foreign currency translation and other (1) 7 6 Balance – December 31, 2021 1,231 505 1,736 Balance – December 31, 2021 comprised of: Current liabilities Payables and accrued charges (Note 20) 115 55 170 Non-current liabilities Asset retirement obligations and accrued environmental costs 1,116 450 1,566 We

Share Capital (Tables)

Share Capital (Tables)	12 Months Ended
Share Capital (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Shares Issued	Authorized We are authorized to issue an unlimited number of common shares without par value and an unlimited number of preferred shares. The common shares are not redeemable or convertible. The preferred shares may be issued in one or more series with rights and conditions to be determined by the Board of Directors. Issued Number of Common Shares Share Capital Balance – December 31, 2020 569,260,406 15,673 Issued under option plans and share-settled plans 4,424,437 226 Repurchased (15,982,154) (442) Shares cancellation (210,173) ‐ Balance – December 31, 2021 557,492,516 15,457
Summary of Share Repurchases	Share Repurchase Programs Maximum Maximum Number of Commencement Shares for Shares for Shares Date Expiry Repurchase Repurchase (%) Repurchased 2019 Normal Course Issuer Bid February 27, 2019 February 26, 2020 42,164,420 7 33,256,668 2020 Normal Course Issuer Bid February 27, 2020 February 26, 2021 28,572,458 5 710,100 2021 Normal Course Issuer Bid 1 March 1, 2021 February 28, 2022 28,468,448 5 15,982,154 2022 Normal Course Issuer Bid 2 March 1, 2022 February 28, 2023 55,111,100 10 ‐ 1 The 2021 normal course issuer bid will expire earlier than the date above if we acquire the maximum number of common shares allowable or otherwise decide not to make any further repurchases. As of February 15, 2022, an additional 6,204,241 common shares were repurchased for cancellation at a cost of $ 445 and an average price per share of $ 71.70 . 2 On February 16, 2022, our Board of Directors approved a share repurchase program, which is subject to the acceptance by the Toronto Stock Exchange. The 2022 normal course issuer bid will expire earlier than the date above if we acquire the maximum number of common shares allowable or otherwise decide not to make any further repurchases.
Dividends Declared	Dividends Declared 2021 2020 Declared Per Share Declared Per Share February 17, 2021 0.46 February 19, 2020 0.45 May 17, 2021 0.46 May 6, 2020 0.45 August 9, 2021 0.46 August 10, 2020 0.45 November 1, 2021 0.46 December 10, 2020 0.45 1.84 1.80

Capital Management (Tables)

Capital Management (Tables)	12 Months Ended
Capital Management (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Schedule of Adjusted Net Debt, Adjusted Shareholders' Equity and Adjusted Capital	We monitor the following measures to evaluate our ability to service debt, make strategic investments and ensure we are in compliance with our debt covenants: 2021 2020 Adjusted net debt to adjusted EBITDA 1.4 2.6 Adjusted EBITDA to adjusted finance costs 14.3 7.4 Debt to capital (calculated as adjusted total debt to adjusted capital) (Limit: 0.65 : 1.00) 0.32 : 1.00 0.34 : 1.00
Adjusted Total Debt	2021 2020 Short-term debt 1,560 159 Current portion of long-term debt 545 14 Current portion of lease liabilities 286 249 Long-term debt 7,521 10,047 Lease liabilities 934 891 Total debt 10,846 11,360 Letters of credit - financial 114 150 Adjusted total debt 10,960 11,510
Adjusted Finance Costs	2021 2020 Finance costs 613 520 Unwinding of discount on asset retirement obligations 9 (33) Borrowing costs capitalized to property, plant and equipment 29 20 Interest on net defined benefit pension and other post-retirement plan obligations (9) (13) Loss on early extinguishment of debt (142) ‐ Adjusted finance costs 500 494

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
Business Combinations (Tables)	Dec. 31, 2021
Statement [LineItems]
Summary Of General Information About Business Combinations Explanatory	The Company’s business combinations include various digital agriculture, proprietary products and agricultural services. Individually Immaterial Acquisitions Acquisition date Various Purchase price, net of cash and cash equivalents acquired $ 88 (2020 – $ 233 ) Goodwill and expected benefits of the acquisition $ 77 (2020 – $ 133 ) The expected benefits of the acquisitions resulting in goodwill include: synergies from expected reduction in operating costs wider distribution channel for selling products of acquired businesses a larger assembled workforce potential increase in customer base enhanced ability to innovate Description 2021 – 36 Retail locations (2020 – 43 including Tec Agro Group, a leading agriculture retailer in Brazil)
Summary of Fair Value Allocated to Assets and Liabilities	We allocated the following values to the acquired assets and assumed liabilities based upon fair values at their respective acquisition date. The information below represents preliminary fair values. For certain acquisitions, we finalized the purchase price with no material change to the fair values disclosed in prior periods. Refer to Note 30 for details of our valuation technique and judgments applied. 2021 2020 Receivables 43 68 Inventories 24 63 Prepaid expenses and other current assets ‐ 4 Property, plant and equipment 10 73 Goodwill 77 133 Other intangible assets 16 47 Other non-current assets 4 2 Total assets 174 390 Short-term debt 11 36 Payables and accrued charges 50 108 Long-term debt, including current portion 7 ‐ Lease liabilities, including current portion 1 2 Other non-current liabilities 17 11 Total liabilities 86 157 Total consideration, net of cash and cash equivalents acquired 88 233
Summary of Proforma Financial Information	2021 Proforma (estimated as if acquisitions occurred at the beginning of the year) Sales 160 Earnings before finance costs and income taxes 10
Summary of Financial Information From Date Of Acquisition	From date of acquisition 2021 Actuals 2020 Actuals Sales 80 190 Earnings before finance costs and income taxes 7 12

Commitments (Tables)

Commitments (Tables)	12 Months Ended
Commitments (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Summary of Minimum Future Commitments Under Contractual Agreements	As at December 31, 2021, minimum future commitments under our contractual arrangements were as follows: Principal Portion and Estimated Interest Lease Long-Term Purchase Capital Other Liabilities Debt Commitments Commitments Commitments Total Within 1 year 313 890 2,091 72 183 3,549 1 to 3 years 423 1,163 488 9 138 2,221 3 to 5 years 227 1,678 42 ‐ 91 2,038 Over 5 years 412 9,340 111 ‐ 97 9,960 Total 1,375 13,071 2,732 81 509 17,768

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
Related Party Transactions (Tables)	Dec. 31, 2021
Notes to Consolidated Financial Statements [Abstract]
Compensation to Key Management Personnel	2021 2020 Salaries and other short-term benefits 16 16 Share-based compensation 55 26 Post-employment benefits 4 2 Termination benefits 7 ‐ 82 44

Description of Business (Inform

Description of Business (Information) (Detail)	12 Months Ended
Description of Business (Information) (Detail)	Dec. 31, 2021
Potash [Member] \| Province of Saskatchewan [Member]
Disclosure of description of business [Line Items]
Number of operations	6
Nitrogen [Member] \| Alberta [Member] \| Production facilities [Member]
Disclosure of description of business [Line Items]
Number of plants	4
Nitrogen [Member] \| Alberta [Member] \| Upgrade facilities [Member]
Disclosure of description of business [Line Items]
Number of plants	3
Nitrogen [Member] \| Texas [Member] \| Production facilities [Member]
Disclosure of description of business [Line Items]
Number of plants	1
Nitrogen [Member] \| Georgia [Member] \| Production facilities [Member]
Disclosure of description of business [Line Items]
Number of plants	1
Nitrogen [Member] \| Louisiana [Member] \| Production facilities [Member]
Disclosure of description of business [Line Items]
Number of plants	1
Nitrogen [Member] \| Ohio [Member] \| Production facilities [Member]
Disclosure of description of business [Line Items]
Number of plants	1
Nitrogen [Member] \| Trinidad [Member]
Disclosure of description of business [Line Items]
Number of plants	1
Nitrogen [Member] \| Washington [Member] \| Upgrade facilities [Member]
Disclosure of description of business [Line Items]
Number of plants	1
Nitrogen [Member] \| Missouri [Member] \| Upgrade facilities [Member]
Disclosure of description of business [Line Items]
Number of plants	1
Nitrogen [Member] \| Argentina [Member] \| Profertil S.A. [Member]
Disclosure of description of business [Line Items]
Proportion of ownership interest in associate	50.00%
Nitrogen [Member] \| North America [Member] \| Production facilities [Member]
Disclosure of description of business [Line Items]
Number of plants	8
Nitrogen [Member] \| North America [Member] \| Upgrade facilities [Member]
Disclosure of description of business [Line Items]
Number of plants	5
Phosphate [Member]
Disclosure of description of business [Line Items]
Number of mines and processing plants	2
Phosphate [Member] \| Ohio [Member]
Disclosure of description of business [Line Items]
Number of plants	1
Phosphate [Member] \| North Carolina [Member]
Disclosure of description of business [Line Items]
Number of mines and processing plants	1
Phosphate [Member] \| Florida [Member]
Disclosure of description of business [Line Items]
Number of mines and processing plants	1
Corporate and Others Segment [Member] \| China [Member] \| Sinofert [Member]
Disclosure of description of business [Line Items]
Proportion of ownership interest in associate	22.00%

Segment Information (Summary of

Segment Information (Summary of Financial Information on Segments) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of operating segments [Line Items]
GROSS MARGIN	$ 9,409	$ 5,239
Net sales	26,861	20,053
Cost of goods sold	17,452	14,814
Sales	27,712	20,908
Freight, transportation and distribution	851	855
Selling expense	3,142	2,813
General and administrative expense	477	429
Provincial mining taxes	466	204
Share-based compensation expense	198	69
Impairment of assets (Note 13 and 14)	(33)	(824)
Other expenses (income)	312	(2)
Earnings (loss) before finance costs	4,781	902
Depreciation and amortization	(1,951)	(1,989)
EBITDA	6,732	2,891
Integration and restructuring costs	43	60
Covid 19 Related Expenses	45	48
Foreign exchange loss, net of related derivatives	42	18
Loss on Disposal of Business	0	6
Net gain on disposal of investment in MOPCO (Note 15)		250
Adjusted EBITDA	7,126	3,667
Assets	49,954	47,192
Cloud computing transition adjustment	36	0
Adjusted EBITDA	39	19
Third Party Reconciling [Member]
Disclosure of operating segments [Line Items]
Sales	27,712	20,908
Retail [Member]
Disclosure of operating segments [Line Items]
GROSS MARGIN	4,600	3,736
Net sales	17,734	14,785
Cost of goods sold	13,134	11,049
Sales	17,734	14,785
Freight, transportation and distribution	0	0
Selling expense	3,124	2,795
General and administrative expense	168	135
Provincial mining taxes	0	0
Share-based compensation expense	0	0
Impairment of assets (Note 13 and 14)	0	0
Other expenses (income)	86	44
Earnings (loss) before finance costs	1,222	762
Depreciation and amortization	706	668
EBITDA	1,928	1,430
Integration and restructuring costs	10	0
Covid 19 Related Expenses	0	0
Loss on Disposal of Business		0
Net gain on disposal of investment in MOPCO (Note 15)		0
Adjusted EBITDA	1,939	1,430
Assets	22,387	20,526
Cloud computing transition adjustment	1
Adjusted EBITDA	0	0
Retail [Member] \| Third Party Reconciling [Member]
Disclosure of operating segments [Line Items]
Sales	17,665	14,748
Potash [Member]
Disclosure of operating segments [Line Items]
GROSS MARGIN	2,751	963
Net sales	4,036	2,146
Cost of goods sold	1,285	1,183
Sales	4,407	2,513
Freight, transportation and distribution	371	367
Selling expense	9	9
General and administrative expense	8	7
Provincial mining taxes	466	201
Share-based compensation expense	0	0
Impairment of assets (Note 13 and 14)	(7)	23
Other expenses (income)	22	8
Earnings (loss) before finance costs	2,239	715
Depreciation and amortization	488	452
EBITDA	2,727	1,167
Integration and restructuring costs	0	0
Covid 19 Related Expenses	0	0
Loss on Disposal of Business		0
Net gain on disposal of investment in MOPCO (Note 15)		0
Adjusted EBITDA	2,736	1,190
Assets	13,148	12,032
Cloud computing transition adjustment	2
Adjusted EBITDA	0	0
Potash [Member] \| Third Party Reconciling [Member]
Disclosure of operating segments [Line Items]
Sales	4,021	2,265
Nitrogen [Member]
Disclosure of operating segments [Line Items]
GROSS MARGIN	1,726	475
Net sales	4,689	2,740
Cost of goods sold	2,963	2,265
Sales	5,137	3,200
Freight, transportation and distribution	448	460
Selling expense	24	27
General and administrative expense	15	8
Provincial mining taxes	0	1
Share-based compensation expense	0	0
Impairment of assets (Note 13 and 14)	(22)	27
Other expenses (income)	(64)	(288)
Earnings (loss) before finance costs	1,729	700
Depreciation and amortization	557	599
EBITDA	2,286	1,299
Integration and restructuring costs	0	4
Covid 19 Related Expenses	0	0
Loss on Disposal of Business		0
Net gain on disposal of investment in MOPCO (Note 15)		250
Adjusted EBITDA	2,308	1,080
Assets	11,093	10,612
Cloud computing transition adjustment	0
Adjusted EBITDA	0	0
Nitrogen [Member] \| Third Party Reconciling [Member]
Disclosure of operating segments [Line Items]
Sales	4,216	2,572
Phosphate [Member]
Disclosure of operating segments [Line Items]
GROSS MARGIN	421	36
Net sales	1,829	1,202
Cost of goods sold	1,408	1,166
Sales	2,046	1,443
Freight, transportation and distribution	217	241
Selling expense	6	6
General and administrative expense	11	10
Provincial mining taxes	0	0
Share-based compensation expense	0	0
Impairment of assets (Note 13 and 14)	(4)	769
Other expenses (income)	15	6
Earnings (loss) before finance costs	385	(755)
Depreciation and amortization	151	218
EBITDA	536	(537)
Integration and restructuring costs	0	0
Covid 19 Related Expenses	0	0
Loss on Disposal of Business		0
Net gain on disposal of investment in MOPCO (Note 15)		0
Adjusted EBITDA	540	232
Assets	1,699	1,462
Cloud computing transition adjustment	0
Adjusted EBITDA	0	0
Phosphate [Member] \| Third Party Reconciling [Member]
Disclosure of operating segments [Line Items]
Sales	1,810	1,241
Corporate and Others Segment [Member]
Disclosure of operating segments [Line Items]
GROSS MARGIN	0	8
Net sales	0	82
Cost of goods sold	0	74
Sales	0	82
Freight, transportation and distribution	0	0
Selling expense	(21)	(24)
General and administrative expense	275	269
Provincial mining taxes	0	2
Share-based compensation expense	198	69
Impairment of assets (Note 13 and 14)	0	5
Other expenses (income)	253	228
Earnings (loss) before finance costs	(705)	(541)
Depreciation and amortization	49	52
EBITDA	(656)	(489)
Integration and restructuring costs	33	56
Covid 19 Related Expenses	45	48
Loss on Disposal of Business		6
Net gain on disposal of investment in MOPCO (Note 15)		0
Adjusted EBITDA	(308)	(286)
Assets	2,266	2,983
Cloud computing transition adjustment	33
Adjusted EBITDA	39	19
Corporate and Others Segment [Member] \| Third Party Reconciling [Member]
Disclosure of operating segments [Line Items]
Sales	0	82
Eliminations [Member]
Disclosure of operating segments [Line Items]
GROSS MARGIN	(89)	21
Net sales	(1,427)	(902)
Cost of goods sold	(1,338)	(923)
Sales	(1,612)	(1,115)
Freight, transportation and distribution	(185)	(213)
Selling expense	0	0
General and administrative expense	0	0
Provincial mining taxes	0	0
Share-based compensation expense	0	0
Impairment of assets (Note 13 and 14)	0	0
Other expenses (income)	0	0
Earnings (loss) before finance costs	(89)	21
Depreciation and amortization	0	0
EBITDA	(89)	21
Integration and restructuring costs	0	0
Covid 19 Related Expenses	0	0
Loss on Disposal of Business		0
Net gain on disposal of investment in MOPCO (Note 15)		0
Adjusted EBITDA	(89)	21
Assets		(423)
Cloud computing transition adjustment	0
Adjusted EBITDA	0	0
Eliminations [Member] \| Third Party Reconciling [Member]
Disclosure of operating segments [Line Items]
Sales	$ 0	$ 0

Segment Information (Summary _2

Segment Information (Summary of Disaggregated Revenue from Contracts with Customers by Product Line or Geographic Location) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	$ 27,712	$ 20,908
Retail [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	17,734	14,785
Retail [Member] \| Crop Nutrients [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	7,290	5,200
Retail [Member] \| Crop Protection Products [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	6,333	5,602
Retail [Member] \| Seed [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	2,008	1,790
Retail [Member] \| Merchandise [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	1,033	943
Retail [Member] \| Nutrien Financial [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	189	129
Retail [Member] \| Services and Others [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	1,051	1,241
Retail [Member] \| Elimination For Interproduct Activity [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	(170)	(120)
Potash [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	4,407	2,513
Potash [Member] \| North America [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	2,009	1,275
Potash [Member] \| Offshore [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	2,398	1,238
Nitrogen [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	5,137	3,200
Nitrogen [Member] \| Ammonia [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	1,556	779
Nitrogen [Member] \| Urea [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	1,568	1,040
Nitrogen [Member] \| Solutions and nitrates [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	1,274	816
Nitrogen [Member] \| Other nitrogen and purchased products [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	739	565
Phosphate [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	2,046	1,443
Phosphate [Member] \| Fertilizer [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	1,250	838
Phosphate [Member] \| Industrial and Feed [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	574	454
Phosphate [Member] \| Other phosphate and purchased products [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	222	151
Corporate and Others Segment [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	0	82
Eliminations [Member]
Disclosure of disaggregation of revenue from contracts with customers [Line Items]
Revenue from contracts with customers	$ (1,612)	$ (1,115)

Segment Information (Summary _3

Segment Information (Summary of Financial Information by Geographical Area) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of geographical areas [Line Items]
Sales	$ 27,712	$ 20,908
Non-current assets	35,432	35,216
Third Party Reconciling [Member]
Disclosure of geographical areas [Line Items]
Sales	27,712	20,908
Intersegment amounts [Member]
Disclosure of geographical areas [Line Items]
Sales	0	0
Canpotex [Member]
Disclosure of geographical areas [Line Items]
Sales	282	(32)
Non-current assets	0	0
Canpotex [Member] \| Third Party Reconciling [Member]
Disclosure of geographical areas [Line Items]
Sales	2,398	1,238
United States [Member]
Disclosure of geographical areas [Line Items]
Non-current assets	15,095	15,268
United States [Member] \| Third Party Reconciling [Member]
Disclosure of geographical areas [Line Items]
Sales	16,009	12,373
Canada [Member]
Disclosure of geographical areas [Line Items]
Non-current assets	17,766	17,435
Canada [Member] \| Third Party Reconciling [Member]
Disclosure of geographical areas [Line Items]
Sales	3,094	2,565
Trinidad [Member]
Disclosure of geographical areas [Line Items]
Non-current assets	638	644
Trinidad [Member] \| Third Party Reconciling [Member]
Disclosure of geographical areas [Line Items]
Sales	258	101
Brazil customer [Member]
Disclosure of geographical areas [Line Items]
Non-current assets	391	284
Brazil customer [Member] \| Third Party Reconciling [Member]
Disclosure of geographical areas [Line Items]
Sales	567	284
Other Latin America And Europe Customer [Member]
Disclosure of geographical areas [Line Items]
Sales	1,033	561
Other [Member]
Disclosure of geographical areas [Line Items]
Non-current assets	340	280
Other [Member] \| Third Party Reconciling [Member]
Disclosure of geographical areas [Line Items]
Sales	1,795	1,116
Australia [Member]
Disclosure of geographical areas [Line Items]
Non-current assets	1,202	1,305
Australia [Member] \| Third Party Reconciling [Member]
Disclosure of geographical areas [Line Items]
Sales	3,591	3,231
Argentina Customer [Member]
Disclosure of geographical areas [Line Items]
Sales	526	372
Europe Customer [Member]
Disclosure of geographical areas [Line Items]
Sales	$ 236	$ 183

Nature of Expenses (Summary of

Nature of Expenses (Summary of Detailed Information about Expenses by Nature) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of expenses [Line Items]
Total	$ 22,931	$ 20,006
Purchased and produced raw materials and product for resale [Member]
Disclosure of expenses [Line Items]
Total	14,711	12,110
Depreciation and amortization [Member]
Disclosure of expenses [Line Items]
Total	1,951	1,989
Employee costs [Member]
Disclosure of expenses [Line Items]
Total	3,007	2,450
Freight [Member]
Disclosure of expenses [Line Items]
Total	1,023	963
Impairment of assets [Member]
Disclosure of expenses [Line Items]
Total	33	824
Acquisition and integration related costs [Member]
Disclosure of expenses [Line Items]
Total	43	60
Contract Services [Member]
Disclosure of expenses [Line Items]
Total	590	617
Lease expense [Member]
Disclosure of expenses [Line Items]
Total	81	60
Fleet fuel, repairs and maintenance [Member]
Disclosure of expenses [Line Items]
Total	302	222
COVID-19 [Member]
Disclosure of expenses [Line Items]
Total	45	48
Net Gain On Disposal Of Investment In Mopco [Member]
Disclosure of expenses [Line Items]
Total	0	250
Other [Member]
Disclosure of expenses [Line Items]
Total	643	709
Provincial Mining [Member]
Disclosure of expenses [Line Items]
Total	466	204
Cloud computing transition adjustment [Member]
Disclosure of expenses [Line Items]
Total	$ 36	$ 0

Share-Based Compensation (Infor

Share-Based Compensation (Information) (Detail) - USD ($)	12 Months Ended
Share-Based Compensation (Information) (Detail) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Weighted average grant date fair value of stock options per unit	$ 11.77	$ 7.18
Aggregate grant-date fair value of all options granted	$ 18,000,000
Average share price	$ 61.26

Share-Based Compensation (Summa

Share-Based Compensation (Summary of Stock Option Plan granted) (Detail)	12 Months Ended
	Dec. 31, 2021
Stock Options [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Eligibility	Officers and eligible employees
Granted	Annually
Vesting Period	25 percent per year over four years
Maximum term	10 years
Settlement Period	Shares 1
Units Granted	1,518,490
Units Outstanding	6,744,720
Performance share units (PSUs) [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Eligibility	Officers and eligible employees
Granted	Annually
Vesting Period	On third anniversary of grant date based on total shareholder return over a three-year performance cycle, compared to average total shareholder return of a peer group of companies over the same period
Maximum term	Not applicable
Settlement Period	Cash
Units Granted	757,212
Units Outstanding	2,174,490
Restricted share units (RSUs) [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Eligibility	Eligible employees
Granted	Annually
Vesting Period	On third anniversary of grant date and not subject to performance conditions
Maximum term	Not applicable
Settlement Period	Cash
Units Granted	537,867
Units Outstanding	1,447,292
Deferred Share Units (DSUs) [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Eligibility	Non-executive directors
Granted	At the discretion of the Board of Directors
Vesting Period	Fully vest upon grant
Maximum term	Not applicable
Settlement Period	Cash 2
Units Granted	27,478
Units Outstanding	373,779
Stock Appreciation Rights (SAR) and Tandem Stock Appreciation Rights (TSAR) [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Eligibility	Awards no longer granted; legacy awards only
Granted	Awards no longer granted; legacy awards only
Vesting Period	25 percent per year over four years
Maximum term	10 years
Settlement Period	Cash
Units Granted	0
Units Outstanding	504,217

Share-Based Compensation (Sum_2

Share-Based Compensation (Summary of Stock Option Plans) (Detail)	12 Months Ended
	Dec. 31, 2021shares$ / shares	Dec. 31, 2020shares$ / shares
Disclosure Of Number And Weighted Average Exercise Price Of Outstanding Share Options [Line Items]
Number of shares subject to option, Outstanding, beginning of year \| shares	10,997,892	9,191,480
Number of shares subject to option, Granted \| shares	1,518,490	2,293,802
Number of shares subject to option, Exercised \| shares	(4,336,682)	(123,403)
Number of shares subject to option, Forfeited or cancelled \| shares	(375,005)	(34,506)
Number of shares subject to option, Expired \| shares	(1,059,975)	(329,481)
Number of shares subject to option, Outstanding, end of year	6,744,720	10,997,892
Weighted average exercise price, Balance - beginning of year	$ 53.59	$ 56.88
Weighted average exercise price, Granted	56.62	42.23
Weighted average exercise price, Exercised	45.24	42.24
Weighted average exercise price, Forfeited or cancelled	50.34	57.45
Weighted average exercise price, Expired	85.66	75.92
Weighted average exercise price, Outstanding, end of year	$ 54.87	$ 53.59

Share-Based Compensation (Sum_3

Share-Based Compensation (Summary of Stock Options Outstanding) (Detail)	12 Months Ended
	Dec. 31, 2021$ / shares	Dec. 31, 2020shares$ / shares	Dec. 31, 2019shares$ / shares
Disclosure of range of exercise prices of outstanding share options [Line Items]
Range of Exercise Prices	$ 54.87
Options Outstanding, Number	6,744,720	10,997,892	9,191,480
Options Outstanding, Weighted Average Remaining Life in Years	5 years
Options Outstanding, Weighted Average Exercise Price	$ 54.87	$ 53.59	$ 56.88
Options Exercisable, Number	3,296,239
Options Exercisable, Weighted Average Exercise Price	$ 60.55
$37.84 to $41.60 [Member]
Disclosure of range of exercise prices of outstanding share options [Line Items]
Range of Exercise Prices	$ 39.01
Options Outstanding, Number	564,087
Options Outstanding, Weighted Average Remaining Life in Years	4 years
Options Exercisable, Number	564,087
Options Exercisable, Weighted Average Exercise Price	$ 39.01
$41.61 to $43.36 [Member]
Disclosure of range of exercise prices of outstanding share options [Line Items]
Range of Exercise Prices	$ 42.23
Options Outstanding, Number	1,559,353
Options Outstanding, Weighted Average Remaining Life in Years	7 years
Options Exercisable, Number	142,206
Options Exercisable, Weighted Average Exercise Price	$ 42.23
$43.37 to $45.40 [Member]
Disclosure of range of exercise prices of outstanding share options [Line Items]
Range of Exercise Prices	$ 45.40
Options Outstanding, Number	1,049,233
Options Outstanding, Weighted Average Remaining Life in Years	5 years
Options Exercisable, Number	820,061
Options Exercisable, Weighted Average Exercise Price	$ 45.65
$45.41 to $52.75 [Member]
Disclosure of range of exercise prices of outstanding share options [Line Items]
Range of Exercise Prices	$ 53.11
Options Outstanding, Number	1,178,225
Options Outstanding, Weighted Average Remaining Life in Years	5 years
Options Exercisable, Number	671,391
Options Exercisable, Weighted Average Exercise Price	$ 52.78
$52.76 to $78.86 [Member]
Disclosure of range of exercise prices of outstanding share options [Line Items]
Range of Exercise Prices	$ 55.62
Options Outstanding, Number	1,295,328
Options Outstanding, Weighted Average Remaining Life in Years	8 years
Options Exercisable, Number	0
Options Exercisable, Weighted Average Exercise Price	$ 0
$78.87 to $130.78 [Member]
Disclosure of range of exercise prices of outstanding share options [Line Items]
Range of Exercise Prices	$ 89.85
Options Outstanding, Number	1,098,494
Options Outstanding, Weighted Average Remaining Life in Years	2 years
Options Exercisable, Number	1,098,494
Options Exercisable, Weighted Average Exercise Price	$ 89.85

Share-Based Compensation (Sum_4

Share-Based Compensation (Summary of Compensation Expense by Plan) (Detail)	12 Months Ended
	Dec. 31, 2021shares	Dec. 31, 2020shares	Dec. 31, 2019shares
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Units Granted	1,518,490	2,293,802
Units Outstanding	6,744,720	10,997,892	9,191,480

Share-Based Compensation (Compe

Share-Based Compensation (Compensation Expense for all Employee and Director Share-based Compensation Plans) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Compensation expense	$ 198	$ 69
Stock Options [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Compensation expense	14	14
Performance share units (PSUs) [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Compensation expense	104	31
Restricted share units (RSUs) [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Compensation expense	47	22
Stock Appreciation Rights (SAR) and Tandem Stock Appreciation Rights (TSAR) [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Compensation expense	21	0
Deferred Share Units (DSUs) [Member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Compensation expense	$ 12	$ 2

Share-Based Compensation (Sum_5

Share-Based Compensation (Summary of Weighted Average Assumptions in Stock Options) (Detail)	12 Months Ended
	Dec. 31, 2021T$ / shares	Dec. 31, 2020T$ / shares
Current Year [Member]
Disclosure Of Share Based Compensation Expense [Line Items]
Exercise price per option \| $ / shares	$ 56.64
Expected annual dividend yield	3.22%
Expected volatility	29.00%
Risk-free interest rate	1.11%
Average expected life of options (years) \| T	85
Prior Year [Member]
Disclosure Of Share Based Compensation Expense [Line Items]
Exercise price per option \| $ / shares		$ 42.23
Expected annual dividend yield		4.36%
Expected volatility		29.00%
Risk-free interest rate		1.51%
Average expected life of options (years) \| T		85

Other Expenses (Summary of Deta

Other Expenses (Summary of Detailed Information About Other Income and Expenses) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Other Operating Income Expense [abstract]
Other (expenses) income	$ 312	$ (2)
Net gain on disposal of investment in MOPCO (Note 15)		250
Cloud computing transition adjustment	36	0
Integration and restructuring costs	(43)	(60)
Foreign exchange loss, net of related derivatives	42	18
Earnings of equity-accounted investees	(89)	(73)
Bad debts expense	26	(6)
Other expenses	(209)	(183)
Covid 19 Related Expenses	45	48
Loss on Disposal of Business	$ 0	$ 6

Finance Costs (Information) (De

Finance Costs (Information) (Detail)	12 Months Ended
Finance Costs (Information) (Detail)	Dec. 31, 2021	Dec. 31, 2020
Disclosure of finance costs [abstract]
Average capitalization rate	4.10%	3.90%

Finance Costs (Summary of Finan

Finance Costs (Summary of Finance Costs) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of finance costs [Line Items]
Total Finance costs	$ 613	$ 520
Interest on net defined benefit pension and other post-retirement plan obligations (Note 21)	(9)	(13)
Borrowing costs capitalized to property, plant and equipment	29	20
Interest income	(8)	(1)
Loss on early extinguishment of debt	142	0
Short-term debt [Member]
Disclosure of finance costs [Line Items]
Interest expense	60	50
Long-term debt [Member]
Disclosure of finance costs [Line Items]
Interest expense	415	392
Unwinding of discount on asset retirement obligations (Note 22)	9	(33)
Lease Liabilities [Member]
Disclosure of finance costs [Line Items]
Interest expense	33	34
COVID-19 [Member]
Disclosure of finance costs [Line Items]
Interest expense	$ 0	$ 19

Income Taxes (Summary of Provis

Income Taxes (Summary of Provision for Income Taxes) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of income tax expense benefits [Line Items]
Earnings (loss) before income taxes	$ 4,168	$ 382
Canadian federal and provincial statutory income tax rate	270.00%	270.00%
Income tax at statutory rates	$ 1,125	$ 103
Income tax (recovery) expense included in net earnings	989	(77)
Adjusted for the effect of:
Impact of foreign tax rates	(98)	(18)
Recovery of prior year taxes due to US legislative changes	(4)	(94)
Production-related deductions	(24)	(12)
Non-taxable income	(18)	(59)
Change in recognition of tax losses and deductible temporary differences	(6)	(20)
Impact of tax rate changes	(1)	(3)
Non-deductible expenses	12	13
Foreign accrual property income	2	7
Other	0	3
Trinidad [Member]
Disclosure of income tax expense benefits [Line Items]
Earnings (loss) before income taxes	256	(44)
Australia [Member]
Disclosure of income tax expense benefits [Line Items]
Earnings (loss) before income taxes	204	83
Other Countries [Member]
Disclosure of income tax expense benefits [Line Items]
Earnings (loss) before income taxes	505	324
Country of domicile [Member]
Disclosure of income tax expense benefits [Line Items]
Earnings (loss) before income taxes	1,884	525
UNITED STATES [Member]
Disclosure of income tax expense benefits [Line Items]
Earnings (loss) before income taxes	$ 1,319	$ (506)

Income Taxes (Summary of Deferr

Income Taxes (Summary of Deferred Income Tax Assets (Liabilities)) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax liability	$ 2,903	$ 2,907	$ 2,896
Deferred income tax assets	262	242
Deferred income tax liabilities	3,165	3,149
Deferred income tax expense recognized in net earning	(31)	(9)
Asset retirement obligations and accrued environmental costs [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax assets	354	376
Deferred income tax expense recognized in net earning	21	20
Tax loss and other carryforwards [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax assets	297	370
Deferred income tax expense recognized in net earning	75	(98)
Pension and other post-retirement benefits liabilities [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax assets	178	161
Deferred income tax expense recognized in net earning	(45)	(12)
Long term debt [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax assets	140	102
Deferred income tax expense recognized in net earning	(39)	3
Lease Liabilities [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax assets	151	201
Deferred income tax expense recognized in net earning	47	26
Receivables [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax assets	44	50
Deferred income tax expense recognized in net earning	6	2
Inventories [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax assets	126	37
Deferred income tax expense recognized in net earning	(90)	20
Payables and accrued charges [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax assets	14	0
Deferred income tax liabilities	0	72
Deferred income tax expense recognized in net earning	(14)	25
Payables and accrued charges [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax expense recognized in net earning	(72)	72
Other assets [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax assets	1	12
Deferred income tax expense recognized in net earning	11	17
Loss Carry Forward [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax liabilities	2,903	2,907
Deferred income tax expense recognized in net earning	31	9
Property plant and equipment [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax liabilities	3,765	3,637
Deferred income tax expense recognized in net earning	132	(12)
Goodwill and other intangible assets [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax liabilities	404	471
Deferred income tax expense recognized in net earning	(64)	(67)
Other liabilities [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Deferred income tax liabilities	39	36
Deferred income tax expense recognized in net earning	$ 1	$ (5)

Income Taxes (Information) (Det

Income Taxes (Information) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Disclosure of income taxes [abstract]
Tax losses and deductible temporary differences for which no deferred tax assets recognized	$ 742
Temporary differences associated with investments in subsidiaries and equity-accounted investees, for which deferred tax liabilities have not been recognized	10,241	$ 8,911
Net decrease in unrecognized deferred tax assets	$ 20

Income Taxes (Summary of Reconc

Income Taxes (Summary of Reconciliation of Net Deferred Income Tax Liabilities) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of changes in deferred tax liability (asset) [abstract]
Balance, beginning of year	$ 2,907	$ 2,896
Business acquisitions (Note 25)	(6)
Deferred income tax expense recognized in net earning	(31)	(9)
Income tax charge recognized in OCI	30	17
Other	(3)	3
Balance, end of year	$ 2,903	$ 2,907

Income Taxes (Summary of Amount

Income Taxes (Summary of Amounts and Expiry Dates of Unused Tax Losses and Unused Tax Credits) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)
Unused operating losses [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Amount	$ 1,206
Expiry Date	2022 – Indefinite
Unused capital losses [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Amount	$ 589
Expiry Date	Indefinite
Unused investment tax credits [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items]
Amount	$ 22
Expiry Date	2022 – 2040

Income Taxes (Summary of Total

Income Taxes (Summary of Total Income Tax Expense) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Current income tax
Tax (recovery) expense for current year	$ 1,033	$ (38)
Adjustments in respect of prior years	(13)	(30)
Total current income tax (recovery) expense	1,020	(68)
Deferred income tax
Origination and reversal of temporary differences	(30)	72
Adjustments in respect of prior years	6	(58)
Change in recognition of tax losses and deductible temporary differences	(6)	(20)
Impact of tax rate changes	(1)	(3)
Total deferred income tax expense (recovery)	(31)	(9)
Income tax (recovery) expense included in net earnings	$ 989	$ (77)

Net Earnings per Share (Summary

Net Earnings per Share (Summary of Net Earnings per Share) (Detail) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Earnings per share [abstract]
WEIGHTED AVERAGE NUMBER OF COMMON SHARES	569,664,000	569,657,000
Dilutive effect of stock options	1,625,000	29,000
Weighted average number of diluted common shares	571,289,000	569,686,000

Net Earnings per Share (Summa_2

Net Earnings per Share (Summary of Options Excluded from Calculation of Diluted Net Earnings per Share) (Detail) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Earnings per share [Line Items]
Number of options excluded	2,393,822	9,875,797
Performance option plan years fully excluded [Member]
Earnings per share [Line Items]
Option plan years fully excluded	2012 - 2015	2011 – 2017
Stock option plan years fully excluded [Member]
Earnings per share [Line Items]
Option plan years fully excluded	2021	2015, 2017 – 2020

Financial Instruments and Rel_3

Financial Instruments and Related Risk Management (Summary of Maximum Exposure to Credit Risk) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Disclosure of credit risk exposure [Line Items]
Maximum Exposure To Credit Risk	$ 5,642	$ 4,997
Cash and cash equivalents [Member]
Disclosure of credit risk exposure [Line Items]
Maximum Exposure To Credit Risk	499	1,454
Receivables from Customers[Member]
Disclosure of credit risk exposure [Line Items]
Maximum Exposure To Credit Risk	$ 5,143	$ 3,543

Financial Instruments and Rel_4

Financial Instruments and Related Risk Management (Information) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Foreign Currency Derivatives [Member]
Disclosure of detailed information about financial instruments [Line Items]
Fair value net FX currency derivative assets	$ 1	$ 14
Interest Rate Contracts [Member]
Disclosure of detailed information about financial instruments [Line Items]
Notional amount, cash flow hedges on our interest rate derivative contracts		$ 680
Current Range [Member] \| Nutrien Financial [Member]
Disclosure of detailed information about financial instruments [Line Items]
Ageing Of Receivables	89.00%
30 days or less past due [Member] \| Nutrien Financial [Member]
Disclosure of detailed information about financial instruments [Line Items]
Ageing Of Receivables	4.00%
31 - 90 days past due [Member] \| Nutrien Financial [Member]
Disclosure of detailed information about financial instruments [Line Items]
Ageing Of Receivables	2.00%
Greater than 90 days past due [Member] \| Nutrien Financial [Member]
Disclosure of detailed information about financial instruments [Line Items]
Ageing Of Receivables	5.00%

Financial Instruments and Rel_5

Financial Instruments and Related Risk Management (Summary of Available Credit Facilities) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Other facilities [Member]
Disclosure of detailed information about borrowings [Line Items]
Amount Outstanding and Committed	$ 4	$ 4

Financial Instruments and Rel_6

Financial Instruments and Related Risk Management (Summary of Maturity Analysis of Financial Liabilities and Gross Settled Derivative Contracts) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Disclosure of maturity analysis for derivative financial liabilities [Line Items]
Payables and accrued charges	$ 10,052	$ 8,058
Short-term debt	1,560	159
Carrying Amount [Member]
Disclosure of maturity analysis for derivative financial liabilities [Line Items]
Payables and accrued charges	8,861
Carrying amount of liability	19,727
Short-term debt	1,560
Long-term debt, including current portion	8,066	10,061
Lease liabilities, including current portion	1,220
Derivatives	20
Gross Carrying amount [Member]
Disclosure of maturity analysis for derivative financial liabilities [Line Items]
Payables and accrued charges	8,861
Carrying amount of liability	24,887
Long-term debt, including current portion	7,813	$ 9,742
Lease liabilities, including current portion	1,375
Short-term debt, contractual cash flows	1,560
Current portion of long-term debt and Long-term debt, contractual cash flows	13,071
Derivatives	20
Not later than one year [Member] \| Gross Carrying amount [Member]
Disclosure of maturity analysis for derivative financial liabilities [Line Items]
Payables and accrued charges	8,861
Carrying amount of liability	11,644
Lease liabilities, including current portion	313
Short-term debt, contractual cash flows	1,560
Current portion of long-term debt and Long-term debt, contractual cash flows	890
Derivatives	20
Later than one year and not later than three years [Member] \| Gross Carrying amount [Member]
Disclosure of maturity analysis for derivative financial liabilities [Line Items]
Payables and accrued charges	0
Carrying amount of liability	1,586
Lease liabilities, including current portion	423
Short-term debt, contractual cash flows	0
Current portion of long-term debt and Long-term debt, contractual cash flows	1,163
Derivatives	0
Later than three years and not later than five years [Member] \| Gross Carrying amount [Member]
Disclosure of maturity analysis for derivative financial liabilities [Line Items]
Payables and accrued charges	0
Carrying amount of liability	1,905
Lease liabilities, including current portion	227
Short-term debt, contractual cash flows	0
Current portion of long-term debt and Long-term debt, contractual cash flows	1,678
Derivatives	0
Over 5 years [Member] \| Gross Carrying amount [Member]
Disclosure of maturity analysis for derivative financial liabilities [Line Items]
Payables and accrued charges	0
Carrying amount of liability	9,752
Lease liabilities, including current portion	412
Short-term debt, contractual cash flows	0
Current portion of long-term debt and Long-term debt, contractual cash flows	9,340
Derivatives	$ 0

Financial Instruments and Rel_7

Financial Instruments and Related Risk Management (Summary of Significant Foreign Currency Derivatives) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)$ / $$ / $$ / $$ / $R$ / $	Dec. 31, 2020USD ($)$ / $$ / $$ / $$ / $R$ / $
Disclosure Of Derivative Contract Outstanding [Line Items]
Average Contract Rate	1.3797	0
Forwards USD/CAD [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $		$ 514
Average Contract Rate	1.2799
Forwards USD/CAD [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $	$ 522
Average Contract Rate		1.2796
Forwards USD/CAD [Member] \| Derivatives Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $	$ 343	$ 254
Average Contract Rate	1.2547	1.3190
Forwards CAD/USD [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $		$ 126
Average Contract Rate	0
Forwards CAD/USD [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $	$ 0
Average Contract Rate		1.2804
Forwards USD/AUD [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $		$ 28
Average Contract Rate	1.3841
Forwards USD/AUD [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $	$ 19
Average Contract Rate		1.3661
Forwards AUD/USD [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Average Contract Rate	1.3860
Forwards AUD/USD [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $	$ 113	$ 92
Average Contract Rate		1.3640
Forwards Brl Usd [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Average Contract Rate \| R$ / $	5.4519	4.2879
Forwards Brl Usd [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $	$ 135	$ 31
Options USD/CAD - buy USD puts [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Average Contract Rate	1.2500
Options USD/CAD - buy USD puts [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $	$ 20	$ 70
Average Contract Rate		1.3147
Options CAD/USD - sell USD calls [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Average Contract Rate	1.2600
Options CAD/USD - sell USD calls [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $	$ 20	$ 55
Average Contract Rate		1.3665
Options AUD/USD - buy USD calls [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Average Contract Rate	1.4060
Options AUD/USD - buy USD calls [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $	$ 71	$ 61
Average Contract Rate		1.3216
Options Usd Aud [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional \| $	$ 72	$ 0

Financial Instruments and Rel_8

Financial Instruments and Related Risk Management (Summary of Fair Value Hierarchy for Financial Assets and Financial Liabilities) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of fair value measurement of assets and liability [Line Items]
Cash and cash equivalents	$ 499	$ 1,454	$ 671
Investment at FVTOCI (Note 15)	244	153
Notes and debentures	545	14
Long-term debt (Note 18)	7,521	10,047
Recurring fair value measurement [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Cash and cash equivalents	499	1,454
Derivative instrument assets	19	45
Investment at FVTOCI (Note 15)	244	153
Recurring fair value measurement [Member] \| Derivative Instruments Liabilities [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Derivative instrument liabilities	(20)	(48)
Marketable Securities [Member] \| Recurring fair value measurement [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Other current financial assets-marketable securities	134	161
Notes and Debentures Current Portion [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Notes and debentures	500	0
Fixed And Floating Rate Debt Current Portion [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Notes and debentures	45
Fixed and floating rate debt		(14)
Notes and Debentures Long Term Debt [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Long-term debt (Note 18)	7,424
Fixed and floating rate debt		9,994
Fixed and Floating Rate Debt Long Term Debt [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Long-term debt (Note 18)	97
Fixed and floating rate debt		(53)
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Cash and cash equivalents	0	0
Derivative instrument assets	0	0
Investment at FVTOCI (Note 15)	234	153
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Derivative Instruments Liabilities [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Derivative instrument liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Marketable Securities [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Other current financial assets-marketable securities	19	24
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Notes and Debentures Current Portion [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Notes and debentures	506	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Fixed And Floating Rate Debt Current Portion [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Fixed and floating rate debt	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Notes and Debentures Long Term Debt [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Notes and debentures	4,021	3,801
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Fixed and Floating Rate Debt Long Term Debt [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Fixed and floating rate debt	0	0
Level 2 of fair value hierarchy [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Cash and cash equivalents		1,454
Derivative instrument assets	19	45
Investment at FVTOCI (Note 15)	0	0
Level 2 of fair value hierarchy [Member] \| Derivative Instruments Liabilities [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Derivative instrument liabilities	(20)	(48)
Level 2 of fair value hierarchy [Member] \| Marketable Securities [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Other current financial assets-marketable securities		137
Level 2 of fair value hierarchy [Member] \| Marketable Securities [Member] \| Recurring fair value measurement [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Other current financial assets-marketable securities	115
Level 2 of fair value hierarchy [Member] \| Financial assets at amortised cost, class [Member] \| Recurring fair value measurement [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Cash and cash equivalents	499
Level 2 of fair value hierarchy [Member] \| Notes and Debentures Current Portion [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Notes and debentures	0	0
Level 2 of fair value hierarchy [Member] \| Fixed And Floating Rate Debt Current Portion [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Fixed and floating rate debt	(45)	(14)
Level 2 of fair value hierarchy [Member] \| Notes and Debentures Long Term Debt [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Notes and debentures	4,709	7,955
Level 2 of fair value hierarchy [Member] \| Fixed and Floating Rate Debt Long Term Debt [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Fixed and floating rate debt	(97)	$ (53)
Level 3 of fair value hierarchy [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Derivative instrument assets	0
Other current financial assets-marketable securities	0
Investment at FVTOCI (Note 15)	10
Level 3 of fair value hierarchy [Member] \| Derivative Instruments Liabilities [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Derivative instrument liabilities	0
Level 3 of fair value hierarchy [Member] \| Recurring fair value measurement [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Cash and cash equivalents	0
Level 3 of fair value hierarchy [Member] \| Notes and Debentures Current Portion [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Notes and debentures	0
Level 3 of fair value hierarchy [Member] \| Fixed And Floating Rate Debt Current Portion [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Fixed and floating rate debt	0
Level 3 of fair value hierarchy [Member] \| Notes and Debentures Long Term Debt [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Notes and debentures	0
Level 3 of fair value hierarchy [Member] \| Fixed and Floating Rate Debt Long Term Debt [Member] \| Financial liabilities at amortised cost, class [Member]
Disclosure of fair value measurement of assets and liability [Line Items]
Fixed and floating rate debt	$ 0

Financial Instruments and Rel_9

Financial Instruments and Related Risk Management (Summary of Natural Gas Derivatives Outstanding) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Forwards USD/CAD [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional		$ 514
Maturities	2022	2021
Forwards USD/CAD [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional	$ 522
Forwards USD/CAD [Member] \| Derivatives Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional	$ 343	$ 254
Maturities	2022	2021
Forwards CAD/USD [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional		$ 126
Maturities	2022	2021
Forwards CAD/USD [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional	$ 0
Forwards USD/AUD [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional		$ 28
Maturities	2022	2021
Forwards USD/AUD [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional	$ 19
Forwards AUD/USD [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Maturities	2022	2021
Forwards AUD/USD [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional	$ 113	$ 92
Forwards Brl Usd [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Maturities	2022	2021
Forwards Brl Usd [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional	$ 135	$ 31
Options USD/CAD - buy USD puts [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Maturities	2022	2021
Options USD/CAD - buy USD puts [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional	$ 20	$ 70
Options CAD/USD - sell USD calls [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Maturities	2022	2021
Options CAD/USD - sell USD calls [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional	$ 20	$ 55
Options AUD/USD - buy USD calls [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Maturities	2022	2021
Options AUD/USD - buy USD calls [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional	$ 71	$ 61
Options Usd Aud [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Maturities	2022	‐
Options Usd Aud [Member] \| Derivatives Not Designated As Hedges [Member]
Disclosure Of Derivative Contract Outstanding [Line Items]
Notional	$ 72	$ 0

Receivables (Summary of Receiva

Receivables (Summary of Receivables) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Trade and other current receivables [abstract]
Less allowance for expected credit losses of receivables from customers	$ (82)	$ (69)
Receivables from customers	4,705	3,019
Rebates	222	256
Income taxes (Note 8)	223	83
Other receivables	216	268
Receivables	$ 5,366	$ 3,626
Maximum percentage of qualified customer loans covered for bad debts Indemnification agreement	500.00%	500.00%
Outstanding customer credit with financial institution	$ 405
Risk of Default Very Low [Member]
Trade and other current receivables [abstract]
Default risk of current trade and other receivables	1,792	$ 1,147
Risk of Default Low [Member]
Trade and other current receivables [abstract]
Default risk of current trade and other receivables	386	270
Trade receivables [Member] \| Third parties financed by Nutrien Financial [Member]
Trade and other current receivables [abstract]
Receivables from customers	2,178	1,417
Trade receivables [Member] \| Third Parties Potash Nitrogen Phosphate [Member]
Trade and other current receivables [abstract]
Receivables from customers	804	391
Trade receivables [Member] \| Related Party - Canpotex [Member]
Trade and other current receivables [abstract]
Receivables from customers	828	122
Trade receivables [Member] \| Third Parties - Retail [Member]
Trade and other current receivables [abstract]
Receivables from customers	$ 977	$ 1,158

Inventories (Information) (Deta

Inventories (Information) (Detail) - USD ($) $ in Millions	12 Months Ended
Inventories (Information) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Classes of inventories [Line Items]
Cost of goods sold (Note 4)	$ 17,452	$ 14,814
Inventories	6,328	4,930
Other Aquisitions [Member]
Classes of inventories [Line Items]
Inventories	24	63
Retail [Member]
Classes of inventories [Line Items]
Cost of goods sold (Note 4)	13,134	11,049
Potash [Member]
Classes of inventories [Line Items]
Cost of goods sold (Note 4)	1,285	1,183
Nitrogen [Member]
Classes of inventories [Line Items]
Cost of goods sold (Note 4)	2,963	2,265
Phosphate [Member]
Classes of inventories [Line Items]
Cost of goods sold (Note 4)	1,408	1,166
Corporate and Others Segment [Member]
Classes of inventories [Line Items]
Cost of goods sold (Note 4)	0	74
Eliminations [Member]
Classes of inventories [Line Items]
Cost of goods sold (Note 4)	(1,338)	(923)
Inventories [Member]
Classes of inventories [Line Items]
Cost of goods sold (Note 4)	$ 17,243	$ 14,347

Inventories (Summary of Invento

Inventories (Summary of Inventories) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Classes of current inventories [abstract]
Inventories	$ 6,328	$ 4,930
Purchased for resale	4,889	3,655
Finished products	410	384
Intermediate products	206	227
Raw materials	337	215
Materials and supplies	$ 486	$ 449

Property Plant And Equipment (S

Property Plant And Equipment (Summary Of Impairment) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Impairment indicator	Lower long-term forecasted global phosphate prices
Pre-tax impairment loss	$ 33	$ 824
Pre-Tax [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Pre-tax impairment loss	$ 33	824
White Springs [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Key assumptions	Value in use ("VIU")
End of mine life (proven and probable reserves) (year)	2029
White Springs [Member] \| Post-Tax [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
After tax discount rate	1200.00%
White Springs [Member] \| Pre-Tax [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Pre-tax impairment loss	$ 215
Recoverable amount ($)	$ 160
Discount rate (%)	160.00%
Aurora [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Key assumptions	Fair value less costs of disposal ("FVLCD") a Level 3 measurement
End of mine life (proven and probable reserves) (year)	2050
Aurora [Member] \| Post-Tax [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Recoverable amount ($)	$ 995
After tax discount rate	1050.00%
Aurora [Member] \| Pre-Tax [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Pre-tax impairment loss	$ 545
Retail Segment [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Pre-tax impairment loss	0	0
Potash Segment [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Pre-tax impairment loss	7	(23)
Nitrogen Segment [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Pre-tax impairment loss	$ 22	(27)
Phosphate Segment [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Segment	Phosphate
Pre-tax impairment loss	$ 4	(769)
Corporate and Others Segment [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Pre-tax impairment loss	0	(5)
Eliminations [Member]
Disclosure Of Property Plant And Equipment Impairment [Line Items]
Pre-tax impairment loss	$ 0	$ 0

Property, Plant and Equipment_2

Property, Plant and Equipment (Summary of Depreciation of Property Plant and Equipment) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [Line Items]
Depreciation, property, plant and equipment	$ 1,287	$ 1,379
Freight Transportation and Distribution [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Depreciation, property, plant and equipment	133	138
Cost of Goods Sold [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Depreciation, property, plant and equipment	1,052	1,111
Selling Expenses [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Depreciation, property, plant and equipment	416	393
General And Administrative Expense1 [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Depreciation, property, plant and equipment	36	56
Depreciation Expense Included in Income Statement [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Depreciation, property, plant and equipment	1,637	1,698
Inventory [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Depreciation, property, plant and equipment	$ 112	$ 132

Property, Plant and Equipment_3

Property, Plant and Equipment (Information) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	$ 33	$ 824
Land Improvements [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	0	88
Buildings and Improvements [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	0	42
Machinery And Equipment [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	14	507
Mine development costs [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	0	137
Assets Under Construction [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	5	48
Retail [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	0	0
Potash [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	7	(23)
Nitrogen [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	22	(27)
Phosphate [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	4	(769)
Corporate and Others Segment [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	0	(5)
Eliminations [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment of assets (Note 13 and 14)	$ 0	$ 0

Property, Plant and Equipment_4

Property, Plant and Equipment (Summary of Estimated Useful Lives) (Detail)	12 Months Ended
	Dec. 31, 2021
Land Improvements [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Useful Life Range	4 – 85
Buildings and Improvements [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Useful Life Range	1 – 65
Machinery And Equipment [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Useful Life Range	1 – 80
Mine development costs [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Useful Life Range	1 – 60

Property, Plant and Equipment_5

Property, Plant and Equipment (Summary of Reconciliation of Changes in Property Plant and Equipment) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	$ 19,660
Property, plant and equipment - ROU assets - IFRS Adjustment	1,108	$ 1,019
Acquisitions (Note 25)	10	77
Additions	1,768	1,418
Additions - ROU	378	323
Disposals	86	48
Transfers	0	0
Foreign currency translation and other	(101)	35
Depreciation	(1,287)	(1,379)
Depreciation - ROU	307	279
Impairment	33	824
Ending balance	20,016	19,660
Pre-Tax [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment	33	824
Owned [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	18,641
Ending balance	18,908	18,641
Carrying Amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	19,660	20,335
Ending balance	20,016	19,660
Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	33,122
Ending balance	34,818	33,122
Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	(13,462)
Ending balance	(14,802)	(13,462)
Property Plant and Equipment [Member] \| Pre-Tax [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Impairment	19	822
Land Improvements 1 [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Property, plant and equipment - ROU assets - IFRS Adjustment	29	29
Acquisitions (Note 25)	2	8
Additions	7	25
Additions - ROU	0	0
Disposals	29	5
Transfers	38	46
Foreign currency translation and other	2	(15)
Depreciation	(35)	(39)
Depreciation - ROU	2	2
Impairment	$ 0	88
Useful Life Range	4 – 85
Land Improvements 1 [Member] \| Owned [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	$ 1,061
Ending balance	1,044	1,061
Land Improvements 1 [Member] \| Carrying Amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	1,090	1,160
Ending balance	1,073	1,090
Land Improvements 1 [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	1,530
Ending balance	1,547	1,530
Land Improvements 1 [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	(440)
Ending balance	(474)	(440)
Buildings and Improvements [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Property, plant and equipment - ROU assets - IFRS Adjustment	375	319
Acquisitions (Note 25)	3	27
Additions	18	91
Additions - ROU	140	24
Disposals	21	9
Transfers	142	58
Foreign currency translation and other	(34)	0
Depreciation	(191)	(198)
Depreciation - ROU	57	55
Impairment	$ 0	42
Useful Life Range	1 – 65
Buildings and Improvements [Member] \| Owned [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	$ 5,986
Ending balance	5,930	5,986
Buildings and Improvements [Member] \| Carrying Amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	6,305	6,409
Ending balance	6,305	6,305
Buildings and Improvements [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	8,377
Ending balance	8,584	8,377
Buildings and Improvements [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	(2,072)
Ending balance	(2,279)	(2,072)
Machinery And Equipment [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Property, plant and equipment - ROU assets - IFRS Adjustment	704	671
Acquisitions (Note 25)	5	42
Additions	97	224
Additions - ROU	238	299
Disposals	35	34
Transfers	874	923
Foreign currency translation and other	(41)	30
Depreciation	(991)	(1,060)
Depreciation - ROU	248	222
Impairment	$ 14	507
Useful Life Range	1 – 80
Machinery And Equipment [Member] \| Owned [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	$ 9,665
Ending balance	9,517	9,665
Machinery And Equipment [Member] \| Carrying Amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	10,336	10,641
Ending balance	10,221	10,336
Machinery And Equipment [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	19,730
Ending balance	20,627	19,730
Machinery And Equipment [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	(9,394)
Ending balance	(10,406)	(9,394)
Mine development costs [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Property, plant and equipment - ROU assets - IFRS Adjustment	0	0
Acquisitions (Note 25)	0	0
Additions	0	1
Additions - ROU	0	0
Disposals	0	0
Transfers	145	164
Foreign currency translation and other	55	30
Depreciation	(70)	(82)
Depreciation - ROU	0	0
Impairment	$ 0	137
Useful Life Range	1 – 60
Mine development costs [Member] \| Owned [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	$ 723
Ending balance	853	723
Mine development costs [Member] \| Carrying Amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	723	747
Ending balance	853	723
Mine development costs [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	2,279
Ending balance	2,496	2,279
Mine development costs [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	(1,556)
Ending balance	(1,643)	(1,556)
Assets Under Construction [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Property, plant and equipment - ROU assets - IFRS Adjustment	0	0
Acquisitions (Note 25)	0	0
Additions	1,646	1,077
Additions - ROU	0	0
Disposals	1	0
Transfers	(1,199)	(1,191)
Foreign currency translation and other	(83)	(10)
Depreciation	0	0
Depreciation - ROU	0	0
Impairment	5	48
Assets Under Construction [Member] \| Owned [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	1,206
Ending balance	1,564	1,206
Assets Under Construction [Member] \| Carrying Amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	1,206	1,378
Ending balance	1,564	1,206
Assets Under Construction [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	1,206
Ending balance	1,564	1,206
Assets Under Construction [Member] \| Accumulated depreciation and amortisation [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	0
Ending balance	$ 0	$ 0

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Estimated Useful Lives Applied to Finite-Lived Intangible Assets) (Detail)	12 Months Ended
	Dec. 31, 2021
Customer relationships [Member]
Disclosure of detailed information about intangible assets [Line Items]
Useful Life Intangible Assets Other Than Goodwill	5 – 15
Technology [Member]
Disclosure of detailed information about intangible assets [Line Items]
Useful Life Intangible Assets Other Than Goodwill	2 – 24
Trade names [Member]
Disclosure of detailed information about intangible assets [Line Items]
Useful Life Intangible Assets Other Than Goodwill	1 – 20 ³
Other [Member]
Disclosure of detailed information about intangible assets [Line Items]
Useful Life Intangible Assets Other Than Goodwill	1 – 30

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets (Summary of Goodwill by Groups of Cash Generating Unit) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Disclosure of goodwill allocated to CGUs [Line Items]
Goodwill	$ 12,220	$ 12,198
Groups of Cash-generating units [Member] \| Potash [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Goodwill	154	154
Groups of Cash-generating units [Member] \| Nitrogen [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Goodwill	4,389	4,395
Groups of Cash-generating units [Member] \| North America Retail [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Goodwill	6,898	6,869
Groups of Cash-generating units [Member] \| International Retail [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Goodwill	$ 779	$ 780

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets (Summary of Key Assumptions, Change In Retail Segment Recoverable Amount) (Detail)	Dec. 31, 2021USD ($)
Disclosure Of Key Assumptions Used In Calculating Recoverable Amount [Line Items]
Percentage of recoverable carrying amount	120.00%
Recoverable amount exceeds its carrying amount	$ 1,500,000,000

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets (Summary of Reconciliation of Intangible Assets) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Accumulated amortization and impairment	$ (304)
Cloud computing transition adjustment	36	$ 0
Amortization	260	254
Goodwill [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance		11,986
Accumulated amortization and impairment	(7)	(7)
Cloud computing transition adjustment	0
Acquisitions (Note 25)	77	167
Additions - internally developed		0
Foreign currency translation and other	(49)	45
Disposals	6	0
Amortization	0	0
Goodwill [Member] \| Carrying Amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	12,198
Ending Balance	12,220	12,198
Goodwill [Member] \| Gross carrying amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	12,205
Ending Balance	12,227	12,205
Goodwill [Member] \| Additions Internally Developed [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Additions - internally developed	0
Customer relationships [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance		1,584
Accumulated amortization and impairment	(611)	(456)
Cloud computing transition adjustment	0
Acquisitions (Note 25)	16	74
Additions - internally developed		0
Foreign currency translation and other	(15)	22
Disposals	0	0
Amortization	166	165
Customer relationships [Member] \| Carrying Amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	1,515
Ending Balance	1,350	1,515
Customer relationships [Member] \| Gross carrying amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	1,971
Ending Balance	1,961	1,971
Customer relationships [Member] \| Additions Internally Developed [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Additions - internally developed	0
Technology [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance		351
Accumulated amortization and impairment	(213)	(107)
Cloud computing transition adjustment	(34)
Acquisitions (Note 25)	0	2
Additions - internally developed		106
Foreign currency translation and other	143	20
Disposals	0	3
Amortization	69	39
Technology [Member] \| Carrying Amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	437
Ending Balance	595	437
Technology [Member] \| Gross carrying amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	544
Ending Balance	808	544
Technology [Member] \| Additions Internally Developed [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Additions - internally developed	118
Trade names [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance		62
Accumulated amortization and impairment	(47)	(36)
Cloud computing transition adjustment	0
Acquisitions (Note 25)	0	8
Additions - internally developed		0
Foreign currency translation and other	(3)	14
Disposals	0	0
Amortization	11	9
Trade names [Member] \| Carrying Amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	75
Ending Balance	80	75
Trade names [Member] \| Gross carrying amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	111
Ending Balance	127	111
Trade names [Member] \| Additions Internally Developed [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Additions - internally developed	19
Other [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance		431
Accumulated amortization and impairment		(236)
Cloud computing transition adjustment	0
Acquisitions (Note 25)	0	6
Additions - internally developed		16
Foreign currency translation and other	13	(22)
Disposals	0	0
Amortization	68	70
Other [Member] \| Carrying Amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	361
Ending Balance	315	361
Other [Member] \| Gross carrying amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	597
Ending Balance	619	597
Other [Member] \| Additions Internally Developed [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Additions - internally developed	9
Intangible assets other than goodwill [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance		2,428
Accumulated amortization and impairment	(1,175)	(835)
Cloud computing transition adjustment	(34)
Acquisitions (Note 25)	16	90
Additions - internally developed		122
Foreign currency translation and other	138	34
Disposals	0	3
Amortization	314	283
Intangible assets other than goodwill [Member] \| Carrying Amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	2,388
Ending Balance	2,340	2,388
Intangible assets other than goodwill [Member] \| Gross carrying amount [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Beginning Balance	3,223
Ending Balance	3,515	$ 3,223
Intangible assets other than goodwill [Member] \| Additions Internally Developed [Member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Additions - internally developed	$ 146

Goodwill and Other Intangible_7

Goodwill and Other Intangible Assets (Summary of Terminal Growth Rate and Corresponding Discount Rate) (Detail) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Disclosure of goodwill allocated to CGUs [Line Items]
Percent by which units recoverable amount exceeds its carrying amount	120.00%
Carrying Amount Change Recoverable Amount [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Terminal Growth Rate	80.00%
Forecasted EBITDA over forecast period	$ 9,800,000,000
Breakeven Discount Rate	0.60%
Potash [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Discount Rate	7.70%	8.00%
Terminal Growth Rate	2.50%	2.50%
Nitrogen [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Discount Rate	7.80%	8.00%
Terminal Growth Rate	2.00%	2.00%
North America Retail [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Discount Rate	7.40%	7.50%
Terminal Growth Rate	2.50%	2.50%
Forecasted EBITDA over forecast period	$ 6,800,000,000
North America Retail [Member] \| Impairment Model Value [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Terminal Growth Rate	2.50%
Breakeven Discount Rate	7.40%
International Retail [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Terminal Growth Rate		2.00%
International Retail [Member] \| Bottom of range [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Discount Rate	8.00%	78.00%
Terminal Growth Rate	2.00%
International Retail [Member] \| Top of range [Member]
Disclosure of goodwill allocated to CGUs [Line Items]
Discount Rate	15.50%	16.00%
Terminal Growth Rate	6.20%

Investments (Summary of Equity-

Investments (Summary of Equity-Accounted Investees and Investments at FVTOCI) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Interests In Other Entities [Line Items]
Proportion of ownership interest in investment	22.00%
Carrying Amount	$ 459	$ 409
Carrying Amount	$ 244	153
Pre-tax gain		$ 250
Profertil [Member]
Disclosure Of Interests In Other Entities [Line Items]
Principal Activity	Nitrogen Producer
Principal Place of Business and Incorporation	Argentina
Proportion of ownership interest in associate	50.00%	50.00%
Carrying Amount	$ 277	$ 233
Sinofert [Member]
Disclosure Of Interests In Other Entities [Line Items]
Principal Activity	Fertilizer Supplier and Distributor
Principal Place of Business and Incorporation	China/Bermuda
Proportion of ownership interest in investment	22.00%	22.00%
Carrying Amount	$ 234	$ 153
MOPCO [Member]
Disclosure Of Interests In Other Entities [Line Items]
Total Gross Proceeds	0	(540)
Pre-tax gain	$ 0	$ 250
Canpotex [Member]
Disclosure Of Interests In Other Entities [Line Items]
Principal Activity	Marketing and Logistics
Principal Place of Business and Incorporation	Canada
Proportion of ownership interest in associate	50.00%	50.00%
Carrying Amount	$ 0	$ 0
Other associates and joint ventures [Member]
Disclosure Of Interests In Other Entities [Line Items]
Carrying Amount	182	176
Other Investments At Fair Value [Member]
Disclosure Of Interests In Other Entities [Line Items]
Carrying Amount	10	0
Total Investments [Member]
Disclosure Of Interests In Other Entities [Line Items]
Carrying Amount	$ 703	$ 562

Other Assets (Summary of Other

Other Assets (Summary of Other Assets) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Miscellaneous non-current assets [abstract]
Deferred income tax assets (Note 8)	$ 262	$ 242
Ammonia catalysts - net of accumulated amortization of $76 (2019 - $71)	88	89
Long-term income tax receivable (Note 8)	166	305
Accrued pension benefit asset (Note 21)	170	109
Other - net of accumulated amortization of $44 (2019 - $41)	143	169
Other assets	$ 829	$ 914

Short-Term Debt (Information) (

Short-Term Debt (Information) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about borrowings [Line Items]
Facility Limit	$ 313	$ 159
Other Credit Facilities	720	740
Uncommitted revolving demand facility [Member]
Disclosure of detailed information about borrowings [Line Items]
Facility Limit	$ 500	500
Other credit facilities [Member] \| Bottom of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	0.80%
Other credit facilities [Member] \| Top of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	13.10%
Other facilities [Member]
Disclosure of detailed information about borrowings [Line Items]
Other Credit Facilities	$ 77	0
Commercial Paper [Member] \| Bottom of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	0.30%
Commercial Paper [Member] \| Top of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	0.40%
Committed Revolving Term Credit Facility [Member]
Disclosure of detailed information about borrowings [Line Items]
Undrawn Borrowing Facilities Before Letters Of Credit And Direct Borrowings	$ 1,500
Notes Issued Note Two [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.15%
Borrowings, maturity	October 1, 2022
Notes Issued Note Three [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	1.90%
Borrowings, maturity	May 13, 2023
Notes Issued Note Four [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.50%
Borrowings, maturity	June 1, 2023
Notes Issued Note Five [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.625%
Borrowings, maturity	March 15, 2024
Notes Issued Note Six [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.375%
Borrowings, maturity	March 15, 2025
Notes Issued Note Seven [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.00%
Borrowings, maturity	April 1, 2025
Notes Issued Note Eight [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	4.00%
Borrowings, maturity	December 15, 2026
Notes Issued Note Nine [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	4.20%
Borrowings, maturity	April 1, 2029
Debentures Issued Note Ten [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	2.95%
Borrowings, maturity	May 13, 2030
Debentures Issued Note Eleven [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	4.125%
Borrowings, maturity	March 15, 2035
Debentures Issued Note Twelve [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	7.125%
Borrowings, maturity	May 23, 2036
Debentures Issued Note Thirteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	5.875%
Borrowings, maturity	December 1, 2036
Debentures Issued Note Fourteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	5.625%
Borrowings, maturity	December 1, 2040
Debentures Issued Note Fifteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	6.125%
Borrowings, maturity	January 15, 2041
Debentures Issued Note Sixteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	4.90%
Borrowings, maturity	June 1, 2043
Debentures Issued Note Seventeen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	5.25%
Borrowings, maturity	January 15, 2045
Debentures Issued Note Eighteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	5.00%
Borrowings, maturity	April 1, 2049
Debentures Issued Note Nineteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.95%
Borrowings, maturity	May 13, 2050
Other [Member] \| Bottom of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest
Other [Member] \| Top of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest
Debentures Issued Note Twenty [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	7.80%
Borrowings, maturity	February 1, 2027
Nutrien Credit Facility [Member]
Disclosure of detailed information about borrowings [Line Items]
Facility Limit	$ 4,500	$ 4,500

Short-Term Debt (Summary of Sho

Short-Term Debt (Summary of Short-Term Debt) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about borrowings [abstract]
Short-term debt	$ 1,560	$ 159
Commercial paper	1,170	0
Other credit facilities	$ 313	$ 159

Long-Term Debt (Summary of Long

Long-Term Debt (Summary of Long-Term Debt) (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about borrowings [Line Items]
Add net unamortized fair value adjustments	$ 325,000,000	$ 404,000,000
Less net unamortized debt issue costs	(72,000,000)	(85,000,000)
Less current maturities	(545,000,000)	(14,000,000)
Non-current portion of non-current borrowings	7,521,000,000	10,047,000,000
Cash On hands and Proceeds	2,200,000,000
Carrying Amount [Member]
Disclosure of detailed information about borrowings [Line Items]
Borrowings	8,066,000,000	10,061,000,000
Gross carrying amount [Member]
Disclosure of detailed information about borrowings [Line Items]
Borrowings	7,813,000,000	9,742,000,000
Other credit facilities [Member]
Disclosure of detailed information about borrowings [Line Items]
Other credit facilities	$ 141,000,000	67,000,000
Other credit facilities [Member] \| Bottom of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	0.80%
Other credit facilities [Member] \| Top of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	13.10%
Other credit facilities [Member] \| South America Retail [Member]
Disclosure of detailed information about borrowings [Line Items]
Other credit facilities	$ 137,000,000	63,000,000
Other credit facilities [Member] \| South America Retail [Member] \| Bottom of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	1.90%
Other credit facilities [Member] \| South America Retail [Member] \| Top of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	12.20%
Other facilities [Member]
Disclosure of detailed information about borrowings [Line Items]
Other borrowings	$ 4,000,000	4,000,000
Other facilities [Member] \| Other sites [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.90%
Commercial Paper [Member] \| Bottom of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	0.30%
Commercial Paper [Member] \| Top of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	0.40%
Notes Issued Note Two [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.15%
Maturity	October 1, 2022
Debentures issued	$ 500,000,000	500,000,000
Notes Issued Note Three [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	1.90%
Maturity	May 13, 2023
Debentures issued	$ 500,000,000	500,000,000
Notes Issued Note Four [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.50%
Maturity	June 1, 2023
Debentures issued	$ 0	500,000,000
Notes Issued Note Five [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.625%
Maturity	March 15, 2024
Debentures issued	$ 0	750,000,000
Notes Issued Note Six [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.375%
Maturity	March 15, 2025
Debentures issued	$ 0	550,000,000
Notes Issued Note Seven [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.00%
Maturity	April 1, 2025
Debentures issued	$ 500,000,000	500,000,000
Notes Issued Note Eight [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	4.00%
Maturity	December 15, 2026
Debentures issued	$ 500,000,000	500,000,000
Notes Issued Note Nine [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	4.20%
Maturity	April 1, 2029
Debentures issued	$ 750,000,000	750,000,000
Debentures Issued Note Ten [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	2.95%
Maturity	May 13, 2030
Debentures issued	$ 500,000,000	500,000,000
Debentures Issued Note Eleven [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	4.125%
Maturity	March 15, 2035
Debentures issued	$ 450,000,000	450,000,000
Debentures Issued Note Twelve [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	7.125%
Maturity	May 23, 2036
Debentures issued	$ 212,000,000	300,000,000
Debentures Issued Note Thirteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	5.875%
Maturity	December 1, 2036
Debentures issued	$ 500,000,000	500,000,000
Debentures Issued Note Fourteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	5.625%
Maturity	December 1, 2040
Debentures issued	$ 500,000,000	500,000,000
Debentures Issued Note Fifteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	6.125%
Maturity	January 15, 2041
Debentures issued	$ 401,000,000	500,000,000
Debentures Issued Note Sixteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	4.90%
Maturity	June 1, 2043
Debentures issued	$ 500,000,000	500,000,000
Debentures Issued Note Seventeen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	5.25%
Maturity	January 15, 2045
Debentures issued	$ 489,000,000	500,000,000
Debentures Issued Note Eighteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	5.00%
Maturity	April 1, 2049
Debentures issued	$ 750,000,000	750,000,000
Debentures Issued Note Nineteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	3.95%
Maturity	May 13, 2050
Debentures issued	$ 500,000,000	500,000,000
Other [Member] \| Bottom of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest
Other [Member] \| Top of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest
Debentures Issued Note Twenty [Member]
Disclosure of detailed information about borrowings [Line Items]
Rate of Interest	7.80%
Maturity	February 1, 2027
Debentures issued	$ 120,000,000	125,000,000
Nutrien Notes [Member]
Disclosure of detailed information about borrowings [Line Items]
Debentures issued	300,000,000
Debentures Issued Two Thousand and Twenty [Member]
Disclosure of detailed information about borrowings [Line Items]
Debentures issued		$ 1,500,000,000
Fully Redeemed Notes [Member]
Disclosure of detailed information about borrowings [Line Items]
Add net unamortized fair value adjustments	5,000,000
Less net unamortized debt issue costs	5,000,000
Fully Redeemed Notes [Member] \| Carrying Amount [Member]
Disclosure of detailed information about borrowings [Line Items]
Borrowings	1,800,000,000
Fully Redeemed Notes [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about borrowings [Line Items]
Borrowings	1,800,000,000
Tendered Notes [Member]
Disclosure of detailed information about borrowings [Line Items]
Add net unamortized fair value adjustments	53,000,000
Tendered Notes [Member] \| Carrying Amount [Member]
Disclosure of detailed information about borrowings [Line Items]
Borrowings	256,000,000
Tendered Notes [Member] \| Gross carrying amount [Member]
Disclosure of detailed information about borrowings [Line Items]
Borrowings	203,000,000
Fully Paid Debt [Member] \| Notes Issued Note Four [Member]
Disclosure of detailed information about borrowings [Line Items]
Debentures issued	500,000,000
Fully Paid Debt [Member] \| Notes Issued Note Five [Member]
Disclosure of detailed information about borrowings [Line Items]
Debentures issued	750,000,000
Fully Paid Debt [Member] \| Notes Issued Note Six [Member]
Disclosure of detailed information about borrowings [Line Items]
Debentures issued	550,000,000
Partially Paid Debt [Member] \| Debentures Issued Note Twelve [Member]
Disclosure of detailed information about borrowings [Line Items]
Debentures issued	88,000,000
Partially Paid Debt [Member] \| Debentures Issued Note Fifteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Debentures issued	99,000,000
Partially Paid Debt [Member] \| Debentures Issued Note Seventeen [Member]
Disclosure of detailed information about borrowings [Line Items]
Debentures issued	11,000,000
Partially Paid Debt [Member] \| Debentures Issued Note Twenty [Member]
Disclosure of detailed information about borrowings [Line Items]
Debentures issued	$ 5,000,000

Long-Term Debt (Summary of chan

Long-Term Debt (Summary of changes in liabilities arising from financing activities) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Notes Issued Note Two [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	$ 500	$ 500
Notes Issued Note Three [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	500	500
Notes Issued Note Four [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	0	500
Notes Issued Note Five [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	0	750
Notes Issued Note Six [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	0	550
Notes Issued Note Seven [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	500	500
Notes Issued Note Eight [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	500	500
Notes Issued Note Nine [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	750	750
Debentures Issued Note Ten [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	500	500
Debentures Issued Note Eleven [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	450	450
Debentures Issued Note Twelve [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	212	300
Debentures Issued Note Thirteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	500	500
Debentures Issued Note Fourteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	500	500
Debentures Issued Note Fifteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	401	500
Debentures Issued Note Sixteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	500	500
Debentures Issued Note Seventeen [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	489	500
Debentures Issued Note Eighteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	750	750
Debentures Issued Note Nineteen [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	500	500
Debentures Issued Note Twenty [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	120	125
Nutrien Notes [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged	$ 300
Debentures Issued Two Thousand and Twenty [Member]
Disclosure of detailed information about borrowings [Line Items]
Senior notes and debentures exchanged		$ 1,500

Long-Term Debt (Summary of Ch_2

Long-Term Debt (Summary of Changes in Liabilities Arising From Financing Activities) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Beginning Balance	$ 11,360	$ 11,104
Adoption of IFRS 16 (Note 13)	1,108	1,019
Debt acquired (Note 4)	0
Cash flows	(1,109)	(149)
Additions and other adjustments to ROU assets	408	320
Foreign currency translation and other non-cash changes	45	85
Adoption of IFRS 16 (Note 13)		0
Loss on early extinguishment of debt	142	0
Ending Balance	10,846	11,360
Short-term debt [Member]
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Beginning Balance	159	976
Cash flows	1,344	(892)
Additions and other adjustments to ROU assets	0	0
Foreign currency translation and other non-cash changes	57	75
Loss on early extinguishment of debt	0
Ending Balance	1,560	159
Long-term debt [Member]
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Beginning Balance	10,061	9,055
Cash flows	(2,133)	1,017
Additions and other adjustments to ROU assets	0	0
Foreign currency translation and other non-cash changes	(4)	(11)
Adoption of IFRS 16 (Note 13)		0
Loss on early extinguishment of debt	142
Ending Balance	8,066	10,061
Lease Liabilities Borrowings [Member]
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Beginning Balance	1,140	1,073
Cash flows	(320)	(274)
Additions and other adjustments to ROU assets	408	320
Foreign currency translation and other non-cash changes	(8)	21
Adoption of IFRS 16 (Note 13)		0
Loss on early extinguishment of debt	0
Ending Balance	$ 1,220	$ 1,140

Lease Liabilities (Summary of L

Lease Liabilities (Summary of Lease Liabilities) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Interest Rate On Lease Liabilities	2.90%
Current portion of lease liabilities	$ 286	$ 249
Lease liabilities - non-current	1,220	1,140
Long-term debt [Member]
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Lease liabilities - non-current	$ 934	891
Short-term debt [Member]
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Borrowings, interest rate	2.50%
Current portion of lease liabilities	$ 286	$ 249

Payables and Accrued Charges (S

Payables and Accrued Charges (Summary of Payables and Accrued Charges) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Trade and other payables [abstract]
Trade and other payables	$ 5,179	$ 4,415
Customer prepayments	2,083	1,800
Dividends	257	256
Accrued compensation	669	513
Current portion of asset retirement obligations and accrued environmental costs (Note 22)	170	162
Accrued interest	80	99
Current portion of share-based compensation (Note 5)	185	95
Current portion of derivatives	20	39
Income taxes (Note 8)	(606)	(48)
Current portion of pension and other post-retirement benefits (Note 21)	16	15
Other accrued charges and others	787	616
Total	$ 10,052	$ 8,058

Pension and Other Post-Retire_3

Pension and Other Post-Retirement Benefits (Summary of Significant Assumptions Used to Determine Benefit Obligations and Expense) (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Bottom of range [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Medical cost trend rate - assumed (%)	4.50%	4.50%
Top of range [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Medical cost trend rate - assumed (%)	6.50%	5.80%
Pension [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Average remaining service period of active employees (years)	15.3	15.4
Pension [Member] \| Benefit obligations [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Discount rate, %	3.09%	2.83%
Rate of increase in compensation levels (%)	4.27%	4.57%
Life expectancy at 65 for a male member currently at age 65	20.7	20.6
Life expectancy at 65 for a female member currently at age 65	22.9	22.8
Other [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Average remaining service period of active employees (years)	14.9	15.2
Other [Member] \| Benefit obligations [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Discount rate, %	2.97%	2.66%
Medical cost trend rate - year reaches ultimate trend rate	2030	2037
Life expectancy at 65 for a male member currently at age 65	20.6	20.2
Life expectancy at 65 for a female member currently at age 65	23.2	22.8
Other [Member] \| Benefit obligations [Member] \| Bottom of range [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Medical cost trend rate - assumed (%)	4.50%	4.50%
Other [Member] \| Benefit obligations [Member] \| Top of range [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Medical cost trend rate - assumed (%)	6.50%	5.80%

Pension and Other Post-Retire_4

Pension and Other Post-Retirement Benefits (Summary of Significant Assumptions, Change in Discount Rates has Greatest Potential Impact) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Benefit obligations [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Benefit obligations, as reported	$ 1,996	$ 2,066
Benefit obligations, 1.0 percentage point increase	330	360
Benefit obligations, 1.0 percentage point decrease	(260)	(280)
Actuarial assumption of discount rates [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Expense in Earnings before Income Taxes, as reported	55	52
Expense in Earnings before Income Taxes, 1.0 percentage point increase	20	10
Expense in Earnings before Income Taxes, 1.0 percentage point decrease	$ (20)	$ (10)

Pension and Other Post-Retire_5

Pension and Other Post-Retirement Benefits (Summary of Fair Value of Plan Assets of the Defined Benefit Pension Plans, by Asset Category) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Disclosure of fair value of plan assets [Line Items]
Total pension plan assets	$ 1,731	$ 1,706
Cash and cash equivalents	18	42
Debt securities	1,020	977
Other	386	27
US Securities [Member]
Disclosure of fair value of plan assets [Line Items]
Equity securities and equity funds	279	502
International Securities [Member]
Disclosure of fair value of plan assets [Line Items]
Equity securities and equity funds	28	158
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Disclosure of fair value of plan assets [Line Items]
Total pension plan assets	33	186
Cash and cash equivalents	11	9
Debt securities	0	0
Other	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| US Securities [Member]
Disclosure of fair value of plan assets [Line Items]
Equity securities and equity funds	22	19
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| International Securities [Member]
Disclosure of fair value of plan assets [Line Items]
Equity securities and equity funds	0	158
Other (Level 2 & 3) [Member]
Disclosure of fair value of plan assets [Line Items]
Total pension plan assets	1,698	1,520
Cash and cash equivalents	7	33
Debt securities	1,020	977
Other	386	27
Other (Level 2 & 3) [Member] \| US Securities [Member]
Disclosure of fair value of plan assets [Line Items]
Equity securities and equity funds	257	483
Other (Level 2 & 3) [Member] \| International Securities [Member]
Disclosure of fair value of plan assets [Line Items]
Equity securities and equity funds	$ 28	$ 0

Pension and Other Post-Retire_6

Pension and Other Post-Retirement Benefits (Additional Information) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of defined benefit plans [abstract]
Total contributions recognized as expense under all defined contribution plans	$ 115	$ 111	$ 116

Pension and Other Post-Retire_7

Pension and Other Post-Retirement Benefits (Summary of Movements in Pension and Other Post-Retirement Benefit Assets (Liabilities) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of net defined benefit liability (asset) [Line Items]
Beginning Balance	$ (360)	$ (423)
Current service cost for benefits earned during the year	36	36
Interest (expense) income	(9)	(13)
Past service cost, including curtailment gains and settlements	(2)	1
Foreign exchange rate changes and other	(8)	(4)
Components of defined benefit expense recognized in earnings	(55)	(52)
Changes in financial assumptions	(6)	153
Changes in demographic assumptions	(83)	(12)
Gain on plan assets (excluding amounts included in net interest)	(36)	(230)
Remeasurements of the net defined benefit liability recognized in OCI during the year	(125)	(89)
Contributions by plan participants	0	0
Employer contributions	(25)	(26)
Benefits paid	0	0
Cash flows	(25)	(26)
Ending Balance	(265)	(360)
Other assets [Member]
Disclosure of net defined benefit liability (asset) [Line Items]
Beginning Balance	109
Ending Balance	170	109
Pension and other post-retirement benefits liabilities [Member]
Disclosure of net defined benefit liability (asset) [Line Items]
Beginning Balance	(454)
Ending Balance	(419)	(454)
Payables and accrued charges [Member]
Disclosure of net defined benefit liability (asset) [Line Items]
Beginning Balance	(15)
Ending Balance	(16)	(15)
Present value of defined benefit obligation [Member]
Disclosure of net defined benefit liability (asset) [Line Items]
Beginning Balance	(2,066)	(2,044)
Current service cost for benefits earned during the year	36	36
Interest (expense) income	(57)	(66)
Past service cost, including curtailment gains and settlements	(2)	133
Foreign exchange rate changes and other	(7)	(3)
Components of defined benefit expense recognized in earnings	(102)	28
Changes in financial assumptions	(6)	153
Changes in demographic assumptions	(83)	(12)
Gain on plan assets (excluding amounts included in net interest)	(3)	0
Remeasurements of the net defined benefit liability recognized in OCI during the year	(92)	141
Contributions by plan participants	6	5
Employer contributions	0	0
Benefits paid	(86)	(96)
Cash flows	(80)	(91)
Ending Balance	(1,996)	(2,066)
Plan assets [Member]
Disclosure of net defined benefit liability (asset) [Line Items]
Beginning Balance	(1,706)	1,621
Current service cost for benefits earned during the year	0	0
Interest (expense) income	48	53
Past service cost, including curtailment gains and settlements	0	(132)
Foreign exchange rate changes and other	(1)	(1)
Components of defined benefit expense recognized in earnings	47	(80)
Changes in financial assumptions	0	0
Changes in demographic assumptions	0	0
Gain on plan assets (excluding amounts included in net interest)	(33)	(230)
Remeasurements of the net defined benefit liability recognized in OCI during the year	(33)	(230)
Contributions by plan participants	(6)	(5)
Employer contributions	(25)	(26)
Benefits paid	86	96
Cash flows	55	65
Ending Balance	$ (1,731)	$ (1,706)

Asset Retirement Obligations _3

Asset Retirement Obligations and Accrued Environmental Costs (Summary of Pre-Tax Risk-Free Discount Rate and Expected Cash Flow Payments for Asset Retirement Obligations and Accrued Environmental Costs) (Detail)	12 Months Ended
	Dec. 31, 2021USD ($)
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Discounted Cash Flows	$ 1,736,000,000
Corporate and Others Segment [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Cash Flow Payments (years)	18
Asset retirement obligations [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Undiscounted Cash Flows	$ 3,300,000,000
Asset retirement obligations [Member] \| Bottom of range [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Risk-Free Rate	1.90%
-0.5% Discount Rate	$ 85,000,000
Asset retirement obligations [Member] \| Top of range [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
+0.5% Discount Rate	$ (75,000,000)
Asset retirement obligations [Member] \| Retail Segment [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Cash Flow Years	1 – 30
Asset retirement obligations [Member] \| Potash Segment [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Cash Flow Years	31 – 440
Asset retirement obligations [Member] \| Phosphate Segment [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Cash Flow Years	1 – 79
Asset retirement obligations [Member] \| Corporate and Others Segment [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Cash Flow Years	1 – 485
Asset retirement obligations [Member] \| Potash sites [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Discounted Cash Flows	$ 96,000,000
Asset retirement obligations [Member] \| Phosphate sites [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Discounted Cash Flows	496,000,000
Asset retirement obligations [Member] \| Retail Site [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Discounted Cash Flows	23,000,000
Asset retirement obligations [Member] \| Corporate And Other Sites [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Discounted Cash Flows	616,000,000
Accrued environmental costs [Member] \| Bottom of range [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
-0.5% Discount Rate	$ 5,000,000
Accrued environmental costs [Member] \| Top of range [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Risk-Free Rate	5.50%
+0.5% Discount Rate	$ (5,000,000)
Accrued environmental costs [Member] \| Retail Segment [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Cash Flow Years	1 – 30
Accrued environmental costs [Member] \| Corporate and Others Segment [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Cash Flow Years	1 – 24
Accrued environmental costs [Member] \| Retail Site [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Discounted Cash Flows	$ 86,000,000
Accrued environmental costs [Member] \| Corporate And Other Sites [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Discounted Cash Flows	$ 419,000,000

Asset Retirement Obligations _4

Asset Retirement Obligations and Accrued Environmental Costs (Summary of Reconciliation of Asset Retirement, Environmental Restoration Obligations) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Other provisions beginning balance	$ 1,759
Settled during the year	(116)
Foreign currency translation and other	6
Other provisions ending balance	1,736
Current liabilities
Payables and accrued charges (Note 20)	170
Non-current liabilities
Asset retirement obligations and accrued environmental costs	1,566
Disposals	4
Additional provisions	23
Change in estimates	77
Accretion	(9)
Asset retirement obligations [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Other provisions beginning balance	1,209
Settled during the year	(89)
Foreign currency translation and other	(1)
Other provisions ending balance	1,231
Current liabilities
Payables and accrued charges (Note 20)	115
Non-current liabilities
Asset retirement obligations and accrued environmental costs	1,116
Disposals	0
Additional provisions	22
Change in estimates	78
Accretion	12
Accrued environmental costs [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Other provisions beginning balance	550
Settled during the year	(27)
Foreign currency translation and other	7
Other provisions ending balance	505
Current liabilities
Payables and accrued charges (Note 20)	55
Non-current liabilities
Asset retirement obligations and accrued environmental costs	450
Disposals	4
Additional provisions	1
Change in estimates	(1)
Accretion	$ (21)

Asset Retirement Obligations _5

Asset Retirement Obligations and Accrued Environmental Costs (Summary of Sensitivity of Asset Retirement Obligations and Accrued Environmental Costs to Changes in Discount Rate on Recorded Liability) (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2021
Top of range [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Final decommissioning period	409 years
Undiscounted Cash Flow [Member] \| Bottom of range [Member] \| Potash Segment [Member]
Disclosure of asset retirement obligations and accrued environmental costs [Line Items]
Final decommissioning period	126 years

Share Capital (Information) (De

Share Capital (Information) (Detail) - USD ($)	12 Months Ended
Share Capital (Information) (Detail) - USD ($)	Feb. 15, 2023	Feb. 06, 2023	Dec. 31, 2021	Dec. 31, 2020
Disclosure of classes of share capital [Line Items]
Number of common shares repurchased for cancellation	6,204,241		15,982,154	3,832,580
Average cost shares repurchased for cancellation			$ 69.17	$ 41.96
Dividends paid, ordinary shares			$ 1,046,000,000	$ 1,029,000,000
Dividend Declared Per Share			$ 1.84	$ 1.80
Common shares, debt and other securities authorized for issuance			$ 5,000,000,000
First Declaration Date [Member]
Disclosure of classes of share capital [Line Items]
Dividend Declared Per Share			$ 0.46
Dividend Declaration Date			February 17, 2021	February 19, 2020
Second Declaration Date [Member]
Disclosure of classes of share capital [Line Items]
Dividend Declaration Date			May 17, 2021	May 6, 2020
Third Declaration Date [Member]
Disclosure of classes of share capital [Line Items]
Dividend Declaration Date			August 9, 2021	August 10, 2020
Forth Declaration Date [Member]
Disclosure of classes of share capital [Line Items]
Dividend Declaration Date			November 1, 2021	December 10, 2020
Number of Common Shares [Member]
Disclosure of classes of share capital [Line Items]
Number of common shares repurchased for cancellation			(210,173)	(3,832,580)
Dividends paid, ordinary shares			$ 0	$ 0
Issued capital [Member]
Disclosure of classes of share capital [Line Items]
Dividends paid, ordinary shares			0	0
Additional paid-in capital [Member]
Disclosure of classes of share capital [Line Items]
Dividends paid, ordinary shares			0	0
Accumulated other comprehensive income [Member]
Disclosure of classes of share capital [Line Items]
Dividends paid, ordinary shares			0	0
Retained earnings [Member]
Disclosure of classes of share capital [Line Items]
Dividends paid, ordinary shares			$ 1,046,000,000	1,029,000,000
Prior Year Minus One Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Number of common shares repurchased for cancellation			33,256,668
Prior Year Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Number of common shares repurchased for cancellation			710,100
Period of Share Repurchase			February 27, 2020
Current Year Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Number of common shares repurchased for cancellation			15,982,154
Period of Share Repurchase			March 1, 2021
Equity Attributable To Owners Of Parent [Member]
Disclosure of classes of share capital [Line Items]
Dividends paid, ordinary shares			$ (1,046,000,000)	(1,029,000,000)
Noncontrolling Interests [Member]
Disclosure of classes of share capital [Line Items]
Dividends paid, ordinary shares			$ 0	$ 0
Current Year Plus One Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Maximum percentage of outstanding common shares to be repurchased			10.00%
Number of common shares repurchased for cancellation			0
Period of Share Repurchase			March 1, 2022
Dividend declared [Member]
Disclosure of classes of share capital [Line Items]
Dividend Declared Ordinary Shares Amount Paid			$ 265,000,000
Dividend Declared Per Share			$ 0.48
Dividend declared [Member] \| Issued capital [Member] \| First Declaration Date [Member]
Disclosure of classes of share capital [Line Items]
Dividend Declared Per Share				$ 0.45
Dividend declared [Member] \| Issued capital [Member] \| Second Declaration Date [Member]
Disclosure of classes of share capital [Line Items]
Dividend Declared Per Share			0.46	0.45
Dividend declared [Member] \| Issued capital [Member] \| Third Declaration Date [Member]
Disclosure of classes of share capital [Line Items]
Dividend Declared Per Share			0.46	0.45
Dividend declared [Member] \| Issued capital [Member] \| Forth Declaration Date [Member]
Disclosure of classes of share capital [Line Items]
Dividend Declared Per Share			$ 0.46	$ 0.45
Share repurchase program [Member]
Disclosure of classes of share capital [Line Items]
Payment for common shares repurchased for cancellation		$ 445,000,000
Average cost shares repurchased for cancellation		$ 71.70
Share repurchase program [Member] \| Number of Common Shares [Member]
Disclosure of classes of share capital [Line Items]
Number of common shares repurchased for cancellation			(15,982,154)
Share repurchase program [Member] \| Prior Year Minus One Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Maximum percentage of outstanding common shares to be repurchased				7.00%
Number of common shares repurchased for cancellation			42,164,420
Share repurchase program [Member] \| Prior Year Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Maximum percentage of outstanding common shares to be repurchased			5.00%
Number of common shares repurchased for cancellation			28,572,458
Share repurchase program [Member] \| Current Year Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Maximum percentage of outstanding common shares to be repurchased			5.00%
Number of common shares repurchased for cancellation			28,468,448
Share repurchase program [Member] \| Current Year Plus One Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Number of common shares repurchased for cancellation			55,111,100
Expiry Date [Member] \| Prior Year Minus One Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Period of Share Repurchase			February 26, 2020
Expiry Date [Member] \| Prior Year Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Period of Share Repurchase			February 26, 2021
Expiry Date [Member] \| Current Year Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Period of Share Repurchase			February 28, 2022
Expiry Date [Member] \| Current Year Plus One Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Period of Share Repurchase			February 28, 2023
Commencement Date [Member] \| Prior Year Minus One Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of classes of share capital [Line Items]
Period of Share Repurchase			February 27, 2019

Share Capital (Summary of Share

Share Capital (Summary of Share Repurchases) (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Feb. 15, 2023	Dec. 31, 2021	Dec. 31, 2020
Disclosure of Share Repurchases [Line Items]
Common shares repurchased for cancellation	6,204,241	15,982,154	3,832,580
Average price per share		$ 69.17	$ 41.96
Shares repurchased		$ 1,105	$ 160
Number of Common Shares [Member]
Disclosure of Share Repurchases [Line Items]
Common shares repurchased for cancellation		(210,173)	(3,832,580)
Issued capital [Member]
Disclosure of Share Repurchases [Line Items]
Shares repurchased		$ 442	$ 105
Additional paid-in capital [Member]
Disclosure of Share Repurchases [Line Items]
Shares repurchased		47	55
Accumulated other comprehensive income [Member]
Disclosure of Share Repurchases [Line Items]
Shares repurchased		0	0
Retained earnings [Member]
Disclosure of Share Repurchases [Line Items]
Shares repurchased		$ 616	0
Prior Year Minus One Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of Share Repurchases [Line Items]
Common shares repurchased for cancellation		33,256,668
Prior Year Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of Share Repurchases [Line Items]
Common shares repurchased for cancellation		710,100
Current Year Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of Share Repurchases [Line Items]
Common shares repurchased for cancellation		15,982,154
Equity Attributable To Owners Of Parent [Member]
Disclosure of Share Repurchases [Line Items]
Shares repurchased		$ 1,105	160
Noncontrolling Interests [Member]
Disclosure of Share Repurchases [Line Items]
Shares repurchased		$ 0	$ 0
Current Year Plus One Normal Course Issuer Bid Share Repurchase [Member]
Disclosure of Share Repurchases [Line Items]
Common shares repurchased for cancellation		0

Share Capital (Summary of Sha_2

Share Capital (Summary of Shares Issued) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)shares
Disclosure of classes of share capital [Line Items]
Beginning Balance \| shares	569,260,406
Ending Balance \| shares	557,492,516
Beginning Balance	$ 15,673
Ending Balance	$ 15,457
Number of Common Shares [Member]
Disclosure of classes of share capital [Line Items]
Beginning Balance \| shares	569,260,406
Issued under option plans and share-settled plans \| shares	4,424,437
Ending Balance \| shares	557,492,516
Issued capital [Member]
Disclosure of classes of share capital [Line Items]
Beginning Balance	$ 15,673
Issued under option plans and share-settled plans	226
Repurchased	442
Ending Balance	$ 15,457

Capital Management (Components

Capital Management (Components of Ratios) (Detail)	12 Months Ended
Capital Management (Components of Ratios) (Detail)	Dec. 31, 2021	Dec. 31, 2020
Disclosure of objectives, policies and processes for managing capital [abstract]
Adjusted net debt to adjusted EBITDA	1.4	2.6
Debt to capital (Limit 0.65:1:00)	0.32 : 1.00	0.34 : 1.00
Adjusted EBITDA to adjusted finance costs	0.143	0.074

Capital Management (Schedule of

Capital Management (Schedule of Adjusted Net Debt, Adjusted Shareholders' Equity and Adjusted Capital) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of objectives, policies and processes for managing capital [abstract]
Adjusted total debt	$ 10,960	$ 11,510
Adjusted capital	34,659	33,913
Adjusted net debt	10,022	9,502
Total debt	10,846	11,360
Short-term debt	1,560	159
Current portion of long-term debt	545	14
Current portion of lease liabilities	286	249
Lease liabilities	934	891
Cash and cash equivalents	(499)	(1,454)	$ (671)
Net debt	10,846	11,360
Unamortized fair value adjustments	(325)	(404)
Total shareholders' equity	23,699	22,403	$ 22,907
Accumulated other comprehensive (income) loss	146	119
Long-term debt	7,521	10,047
Letters of credit financial	$ 114	$ 150

Capital Management (Summary of

Capital Management (Summary of EBITDA, Adjusted EBITDA and Adjusted Finance Costs) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of objectives, policies and processes for managing capital [abstract]
Adjusted finance costs	$ 500	$ 494
Finance costs	613	520
Borrowing costs capitalized to property, plant and equipment	(29)	(20)
Interest on net defined benefit pension and other post-retirement plan obligations	9	13
Loss on early extinguishment of debt	$ 142	$ 0

Capital Management (Free Cash F

Capital Management (Free Cash Flow) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash from operations before working capital changes	$ 5,547	$ 2,749

Business Combinations (Addition

Business Combinations (Additional Information) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)Plant	Dec. 31, 2020USD ($)Plant
Disclosure of detailed information about business combination [Line Items]
Integration and restructuring costs	$ 43	$ 60
Goodwill	12,220	12,198
Assets relating to equity-accounted investees	459	409
Total consideration	$ 88	$ 233
Number Of Operating Locations Acquired \| Plant	36	43
Other Aquisitions [Member]
Disclosure of detailed information about business combination [Line Items]
Goodwill	$ 77	$ 133

Business Combinations (Summary

Business Combinations (Summary of Fair Value Allocated to Assets and Liabilities) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about business combination [Line Items]
Cash and cash equivalents	$ 499	$ 1,454	$ 671
TOTAL ASSETS	49,954	47,192
Receivables	5,366	3,626
Other assets	829	914
Investments	459	409
Other intangible assets	2,340	2,388
Goodwill	12,220	12,198
Property, plant and equipment	20,016	19,660
Prepaid expenses and other current assets	1,653	1,460
Inventories	6,328	4,930
TOTAL LIABILITIES	26,255	24,789
Short-term debt	1,560	159
Payables and accrued charges	10,052	8,058
Long Term Debt, including current portion	7	0
Lease liabilities, including current portion	1,220	1,140
Deferred income tax liabilities	3,165	3,149
Pension and other post-retirement benefit liabilities	419	454
Other non-current liabilities	207	171
Asset retirement obligations and accrued environmental costs	1,566	1,597
Total consideration	88	233
Other Aquisitions [Member]
Disclosure of detailed information about business combination [Line Items]
TOTAL ASSETS	174	390
Receivables	43	68
Other assets	4	2
Other intangible assets	16	47
Goodwill	77	133
Property, plant and equipment	10	73
Prepaid expenses and other current assets	0	4
Inventories	24	63
TOTAL LIABILITIES	86	157
Lease liabilities, including current portion	1	2
Other non-current liabilities	17	11
Total consideration	$ 88	$ 233

Business Combinations (Summar_2

Business Combinations (Summary of Financial Information Related to Acquired Operations) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Proforma [Member]
Disclosure of detailed information about business combination [Line Items]
Sales	$ 160
EBIT	10
Other Aquisitions [Member]
Disclosure of detailed information about business combination [Line Items]
Sales	80	$ 190
EBIT	$ 7	$ 12

Commitments (Information) (Deta

Commitments (Information) (Detail)	12 Months Ended
Commitments (Information) (Detail)	Dec. 31, 2021T
Conda Phosphate operations [Member]
Disclosure of commitments [Line Items]
Estimated mono ammonium phosphate production	3,300,000

Commitments (Summary of Minimum

Commitments (Summary of Minimum Future Commitments Under Contractual Agreements) (Detail) $ in Millions	Dec. 31, 2021USD ($)
Disclosure of commitments [Line Items]
Total	$ 17,768
Lease Commitments	1,375
Long-term debt	13,071
Purchase Commitments	2,732
Capital Commitments	81
Other Commitments	509
Not later than one year [Member]
Disclosure of commitments [Line Items]
Total	3,549
Lease Commitments	313
Long-term debt	890
Purchase Commitments	2,091
Capital Commitments	72
Other Commitments	183
Later than one year and not later than three years [Member]
Disclosure of commitments [Line Items]
Total	2,221
Lease Commitments	423
Long-term debt	1,163
Purchase Commitments	488
Capital Commitments	9
Other Commitments	138
Later than three years and not later than five years [Member]
Disclosure of commitments [Line Items]
Total	2,038
Lease Commitments	227
Long-term debt	1,678
Purchase Commitments	42
Capital Commitments	0
Other Commitments	91
Over 5 years [Member]
Disclosure of commitments [Line Items]
Total	9,960
Lease Commitments	412
Long-term debt	9,340
Purchase Commitments	111
Capital Commitments	0
Other Commitments	$ 97

Related Party Transactions (Com

Related Party Transactions (Compensation to Key Management Personnel) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of transactions between related parties [abstract]
Total	$ 82	$ 44
Salaries and other short-term benefits	16	16
Share-based compensation	55	26
Post-employment benefits	4	2
Termination benefits	$ 7	$ 0

Segment Information (Summary _4

Segment Information (Summary of Financial Information by Geographical Area (Parenthetica)) (Detail) - Sales revenue [Member] - Canpotex [Member]	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
China [Member]
Disclosure of geographical areas [Line Items]
Sales volume percentage	11.00%	22.00%
Other Countries [Member]
Disclosure of geographical areas [Line Items]
Sales volume percentage	10.00%	7.00%
Latin America [Member]
Disclosure of geographical areas [Line Items]
Sales volume percentage	38.00%	32.00%
India [Member]
Disclosure of geographical areas [Line Items]
Sales volume percentage	6.00%	14.00%
Other Asian markets [Member]
Disclosure of geographical areas [Line Items]
Sales volume percentage	35.00%	25.00%

Financial Instruments and Re_10

Financial Instruments and Related Risk Management (Summary of Maturity Analysis of Financial Liabilities and Gross Settled Derivative Contracts (Parenthetical) (Detail)	Dec. 31, 2021USD ($)
Disclosure of maturity analysis for derivative financial liabilities [abstract]
Payable and accrued charges, excludes non-financial liabilities and includes trade payables	$ 1,700,000,000

Nature of Expenses (Summary o_2

Nature of Expenses (Summary of Detailed Information about Expenses by Nature) (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Provincial Mining [abstract]
Total	$ 466	$ 204
Saskatchewan potash production tax	341	86
Saskatchewan resource surcharge and other	$ 125	$ 118

Short-Term Debt (Summary of S_2

Short-Term Debt (Summary of Short-Term Debt) (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Australia [Member]
Disclosure of detailed information about borrowings [Line Items]
Current unsecured bank loans received and current portion of non-current unsecured bank loans received	$ 211	$ 19
Australia [Member] \| Bottom of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Borrowings, interest rate		0.80%
Australia [Member] \| Top of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Borrowings, interest rate		0.90%
Other Countries [Member]
Disclosure of detailed information about borrowings [Line Items]
Current unsecured bank loans received and current portion of non-current unsecured bank loans received	28	$ 31
Borrowings, interest rate		1.40%
Latin America [Member]
Disclosure of detailed information about borrowings [Line Items]
Current unsecured bank loans received and current portion of non-current unsecured bank loans received		$ 109
South America [Member]
Disclosure of detailed information about borrowings [Line Items]
Current unsecured bank loans received and current portion of non-current unsecured bank loans received	$ 74
South America [Member] \| Bottom of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Borrowings, interest rate	18.00%
South America [Member] \| Top of range [Member]
Disclosure of detailed information about borrowings [Line Items]
Borrowings, interest rate	131.00%

Pension and Other Post-Retire_8

Pension and Other Post-Retirement Benefits (Summary of Significant Assumptions Used to Determine Benefit Obligations and Expense) (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Bottom of range [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Medical cost trend rate - assumed (%)	4.50%	4.50%
Top of range [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Medical cost trend rate - assumed (%)	6.50%	5.80%
Benefit obligations [Member] \| Other [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Medical cost trend rate - year reaches ultimate trend rate	2030	2037
Benefit obligations [Member] \| Other [Member] \| Bottom of range [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Medical cost trend rate - assumed (%)	4.50%	4.50%
Benefit obligations [Member] \| Other [Member] \| Top of range [Member]
Disclosure of sensitivity analysis for actuarial assumptions [Line Items]
Medical cost trend rate - assumed (%)	6.50%	5.80%

Pension and Other Post-Retire_9

Pension and Other Post-Retirement Benefits (Summary of Movements in Pension and Other Post-Retirement Benefit Assets (Liabilities) (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of net defined benefit liability (asset) [Line Items]
Funded status net defined benefit liability asset	$ (1,659)	$ (1,690)
Obligations arising from unfunded plans	(337)	(376)
Net obligation	(265)	(360)	$ (423)
Present value of defined benefit obligation [Member]
Disclosure of net defined benefit liability (asset) [Line Items]
Net obligation	(1,996)	(2,066)	(2,044)
Plan assets [Member]
Disclosure of net defined benefit liability (asset) [Line Items]
Net obligation	$ (1,731)	$ (1,706)	$ 1,621

Pension and Other Post-Retir_10

Pension and Other Post-Retirement Benefits (Summary of Fair Value of Plan Assets of the Defined Benefit Pension Plans, by Asset Category) (Parenthetical) (Detail)	Dec. 31, 2021	Dec. 31, 2020
Disclosure of fair value of plan assets [Line Items]
Other plan assets held in funds estimated fair values	100.00%	76.00%
US Securities [Member]
Disclosure of fair value of plan assets [Line Items]
Debt securities	71.00%	60.00%
International Securities [Member]
Disclosure of fair value of plan assets [Line Items]
Debt securities	28.00%	40.00%
Mortgage- backed securities [Member]
Disclosure of fair value of plan assets [Line Items]
Debt securities	1.00%

Goodwill and Other Intangible_8

Goodwill and Other Intangible Assets (Summary of Reconciliation of Intangible Assets) (Parenthetical) (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Amortization	$ 260,000,000	$ 254,000,000
Remaining amortization period of intangible assets	5 years
Amount recoverable amount exceeds its carrying amount	$ 1,500,000,000
Percent by which units recoverable amount exceeds its carrying amount	120.00%

Uncategorized Items - _IXDS

Label	Element	Value
Intersegment amounts [Member] \| Phosphate Segment [Member]
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	$ 236,000,000
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	202,000,000
Intersegment amounts [Member] \| Retail Segment [Member]
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	69,000,000
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	37,000,000
Intersegment amounts [Member] \| Nitrogen Segment [Member]
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	921,000,000
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	628,000,000
Intersegment amounts [Member] \| Corporate and Others Segment [Member]
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	0
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	0
Intersegment amounts [Member] \| Potash Segment [Member]
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	386,000,000
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	248,000,000
Intersegment amounts [Member] \| Eliminations [Member]
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	(1,612,000,000)
Revenue from contracts with customers	ifrs-full_RevenueFromContractsWithCustomers	(1,115,000,000)
Assets	ifrs-full_Assets	(639,000,000)
Other Aquisitions [Member] \| Carrying Amount [Member]
Trade and other current payables	ifrs-full_TradeAndOtherCurrentPayables	50,000,000
Trade and other current payables	ifrs-full_TradeAndOtherCurrentPayables	108,000,000
Current borrowings	ifrs-full_ShorttermBorrowings	11,000,000
Current borrowings	ifrs-full_ShorttermBorrowings	$ 36,000,000