NCR Voyix (VYX) 10-K26 Feb 212020 FY Annual reportFinancial data

Company Profile

Cover Page

Cover Page - USD ($) shares in Millions, $ in Millions	12 Months Ended
Cover Page - USD ($) shares in Millions, $ in Millions	Dec. 31, 2020	Feb. 12, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Entity File Number	001-00395
Entity Registrant Name	NCR CORPORATION
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	31-0387920
Entity Address, Address Line One	864 Spring Street NW
Entity Address, City or Town	Atlanta
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30308
City Area Code	937
Local Phone Number	445-1936
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	NCR
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 2,300
Entity Common Stock, Shares Outstanding		130.1
Entity Central Index Key	0000070866
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
dei:IcfrAuditorAttestationFlag	Yes

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ / shares in Units, shares in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Total revenue									$ 6,207,000,000	$ 6,915,000,000	$ 6,405,000,000
Selling, general and administrative expenses									(1,051,000,000)	(1,051,000,000)	(1,005,000,000)
Research and development expenses									(234,000,000)	(259,000,000)	(252,000,000)
Asset Impairment Charges									18,000,000	0	227,000,000
Total operating expenses									5,986,000,000	6,304,000,000	6,214,000,000
Income from operations	$ (63,000,000)	$ 118,000,000	$ 89,000,000	$ 77,000,000	$ 182,000,000	$ 172,000,000	$ 157,000,000	$ 100,000,000	221,000,000	611,000,000	191,000,000
Gain (Loss) on Extinguishment of Debt									(20,000,000)	0	0
Interest expense									(218,000,000)	(197,000,000)	(168,000,000)
Other income (expense), net									(42,000,000)	(73,000,000)	16,000,000
Income (loss) from continuing operations before income taxes									(59,000,000)	341,000,000	39,000,000
Income tax expense (benefit)									(53,000,000)	(273,000,000)	73,000,000
Income (loss) from continuing operations									(6,000,000)	614,000,000	(34,000,000)
Loss (income) from discontinued operations	(72,000,000)								(72,000,000)	(50,000,000)	(52,000,000)
Net income (loss)									(78,000,000)	564,000,000	(86,000,000)
Net income attributable to noncontrolling interests									(1,000,000)	0	(2,000,000)
Net income (loss) attributable to NCR									(79,000,000)	564,000,000	(88,000,000)
Amounts attributable to NCR common stockholders:
Income (loss) from continuing operations	(125,000,000)	31,000,000	64,000,000	23,000,000	384,000,000	105,000,000	88,000,000	37,000,000	(7,000,000)	614,000,000	(36,000,000)
Series A convertible preferred stock dividends									(31,000,000)	(110,000,000)	(49,000,000)
Income (loss) from continuing operations attributable to common stockholders									(38,000,000)	504,000,000	(85,000,000)
Loss (income) from discontinued operations	(72,000,000)								(72,000,000)	(50,000,000)	(52,000,000)
Net income (loss) attributable to NCR common stockholders	$ (209,000,000)	$ 25,000,000	$ 57,000,000	$ 17,000,000	$ 343,000,000	$ 11,000,000	$ 76,000,000	$ 24,000,000	$ (110,000,000)	$ 454,000,000	$ (137,000,000)
Income (loss) per share attributable to NCR common stockholders:
Basic (in dollars per share)	$ (1.06)	$ 0.19	$ 0.45	$ 0.13	$ 2.96	$ 0.21	$ 0.63	$ 0.20	$ (0.30)	$ 4.13	$ (0.72)
Diluted (in dollars per share)	(1.06)	0.19	0.44	0.13	2.67	0.21	0.58	0.20	(0.30)	3.71	(0.72)
Net income (loss) per common share
Basic (in dollars per share)	(1.62)	0.19	0.45	0.13	2.69	0.09	0.63	0.20	(0.86)	3.72	(1.16)
Diluted (in dollars per share)	$ (1.62)	$ 0.19	$ 0.44	$ 0.13	$ 2.43	$ 0.09	$ 0.58	$ 0.20	$ (0.86)	$ 3.36	$ (1.16)
Weighted average common shares outstanding
Basic (in shares)									128.4	122.1	118.4
Diluted (net income)									128.4	145.2	118.4
Product [Member]
Total revenue									$ 2,005,000,000	$ 2,681,000,000	$ 2,341,000,000
Cost of products									1,733,000,000	2,146,000,000	1,988,000,000
Service [Member]
Total revenue									4,202,000,000	4,234,000,000	4,064,000,000
Cost of products									$ 2,950,000,000	$ 2,848,000,000	$ 2,742,000,000

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ / shares in Units, $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 338	$ 509	$ 464
Accounts receivable, net of allowances of $51 and $44 as of December 31, 2020 and 2019, respectively	1,117	1,490
Inventories	601	784
Other current assets	422	361
Total current assets	2,478	3,144
Property, plant and equipment, net	373	413
Goodwill	2,837	2,832	2,692
Intangibles, net	532	607
Operating Lease, Right-of-Use Asset	344	391
Prepaid pension cost	199	178
Deferred Income Taxes and Other Assets, Noncurrent	965	821
Other assets	686	601
Total assets	8,414	8,987
Liabilities and stockholders’ equity
Short-term borrowings	8	282
Accounts payable	632	840
Payroll and benefits liabilities	268	308
Contract with Customer, Liability, Current	507	502
Other current liabilities	673	606
Total current liabilities	2,088	2,538
Long-term debt	3,270	3,277
Pension and indemnity plan liabilities	851	858
Postretirement and postemployment benefits liabilities	120	111
Income tax accruals	102	92
Operating Lease, Liability, Noncurrent	325	369
Other liabilities	334	240
Total liabilities	7,090	7,485
Commitments and Contingencies (Note 9)
Series A convertible preferred stock: par value $0.01 per share, 3.0 shares authorized, 0.9 and 0.8 shares issued and outstanding as of December 31, 2018 and December 31, 2017, respectively; redemption amount and liquidation preference of $871 and $825 as of December 31, 2018 and December 31, 2017, respectively	273	395
Stockholders’ equity
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	1	1
Paid-in capital	368	312
Retained earnings	950	1,060
Accumulated other comprehensive loss	(271)	(269)	$ (246)	$ (199)
Total NCR stockholders’ equity	1,048	1,104
Noncontrolling interests in subsidiaries	3	3
Total stockholders’ equity	1,051	1,107
Total liabilities and stockholders’ equity	8,414	8,987
Less: allowance for doubtful accounts	$ (51)	$ (44)
Series A preferred shares, par value	$ 0.01	$ 0.01
Series A preferred shares, shares authorized	3,000,000	3,000,000
Series A preferred shares, shares outstanding	300,000	400,000
Temporary Equity, Liquidation Preference	$ 276	$ 399
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock shares authorized	100,000,000	100,000,000
Preferred Stock shares issued	0	0
Preferred Stock shares outstanding	0	0
Common Stock par value	$ 0.01	$ 0.01
Common Stock shares authorized	500,000,000	500,000,000
Common Stock, Shares, Outstanding	129,100,000	127,700,000
Common Stock shares issued	129,100,000	127,700,000

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net income (loss)	$ (78)	$ 564	$ (86)
Currency translation adjustments
Currency translation adjustments	15	(29)	(53)
Derivatives
Unrealized gain (loss) on derivatives	(8)	6	11
Loss (gains) on derivatives arising during the period	7	(8)	(7)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	0	1	(1)
Employee benefit plans
New prior service benefit (cost)	(1)	0	(4)
Amortization of prior service cost	(4)	(6)	(9)
Net (loss) gain arising during the period	(11)	12	12
Amortization of actuarial (loss) gain	(3)	(3)	0
Less income tax benefit (expense)	3	1	1
Other comprehensive income (loss)	(2)	(26)	(50)
Total comprehensive income (loss)	(80)	538	(136)
Less comprehensive income attributable to noncontrolling interests:
Net income	1	0	2
Currency translation adjustments	0	(3)	(2)
Amounts attributable to noncontrolling interests	1	(3)	0
Comprehensive income (loss) attributable to NCR common stockholders	$ (81)	$ 541	$ (136)

Consolidated Balance Sheets Par

Consolidated Balance Sheets Parenthetical - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Series A preferred shares, par value	$ 0.01	$ 0.01
Series A preferred shares, shares authorized	3,000,000	3,000,000
Temporary Equity, Liquidation Preference	$ 276	$ 399
Series A preferred shares, shares issued	300,000	400,000
Stockholders' Equity:
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock shares authorized	100,000,000	100,000,000
Preferred Stock shares issued	0	0
Preferred Stock shares outstanding	0	0
Common Stock par value	$ 0.01	$ 0.01
Common Stock shares authorized	500,000,000	500,000,000
Common Stock shares issued	129,100,000	127,700,000
Common Stock, Shares, Outstanding	129,100,000	127,700,000
Series A preferred shares, shares outstanding	300,000	400,000
Operating Lease, Liability, Noncurrent	$ 325	$ 369

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating activities
Net income (loss)	$ (78)	$ 564	$ (86)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Loss from discontinued operations	72	50	52
Gain (Loss) on Extinguishment of Debt	20	0	0
Depreciation and amortization	364	333	330
Stock-based compensation expense	108	107	72
Deferred income taxes	(112)	(355)	14
Gain on disposal of property, plant and equipment and other assets	(1)	(6)	(2)
Goodwill and Long-Lived Intangible Asset Impairment	46	2	239
Business Combination, Bargain Purchase, Gain Recognized, Amount	(7)	0	0
Changes in assets and liabilities:
Receivables	420	(144)	(155)
Inventories	168	5	(70)
Current payables and accrued expenses	(295)	(20)	198
Deferred service revenue and customer deposits	2	31	(13)
Employee benefit plans	(51)	59	(60)
Other assets and liabilities	(15)	8	53
Net Cash Provided by (Used in) Operating Activities	641	634	572
Investing activities
Expenditures for property, plant and equipment	(31)	(91)	(143)
Proceeds from Sale of property, plant, and equipment	7	11	3
Additions to capitalized software	(232)	(238)	(170)
Business acquisitions, net	(25)	(203)	(160)
Net change in funds held for clients - investing	(20)	0	0
Proceeds from Sale, Maturity and Collection of Investments	27	0	0
Other investing activities, net	(3)	9	(4)
Net Cash Provided by (Used in) Investing Activities	(277)	(512)	(474)
Financing activities
Short term borrowings, net	0	0	(1)
Payments on term credit facilities	(12)	(761)	(51)
Proceeds from Issuance of Secured Debt	4	750	0
Payments on revolving credit facilities	(1,998)	(3,216)	(2,233)
Borrowings on revolving credit facilities	1,535	3,535	2,453
Repayments of Unsecured Debt	(1,315)	(900)	0
Proceeds from Issuance of Unsecured Debt	1,500	1,000	0
Debt issuance costs	(21)	(32)	0
Series A Convertible Preferred Stock cash payments	(9)	0	0
Repurchase of company common stock	(41)	(96)	(210)
Tax withholding payments on behalf of employees	(28)	(29)	(36)
Proceeds from employee stock plans	17	16	20
Increase (Decrease) in Client Funds Held	12	(15)	10
Repurchase of Series A Convertible Preferred Stock	(144)	(302)	0
Finance Lease, Principal Payments	(13)	(4)	0
Payments for Repurchase of Redeemable Noncontrolling Interest	0	(3)	0
Other financing activities	(1)	(4)	0
Net Cash Provided by (Used in) Financing Activities	(514)	(61)	(48)
Cash flows from discontinued operations
Net cash used in discontinued operations operating activities	0	(24)	(36)
Effect of Exchange Rate changes on cash and cash equivalents	(7)	(6)	(25)
Decrease in cash, cash equivalents, and restricted cash	(157)	31	(11)
Cash and Cash Equivalents	338	509	464
Cash, cash equivalents and restricted cash at beginning of period	563	532	543
Cash, Cash Equivalents, Restricted Cash at end of period	406	563	532
Income Taxes Paid, Net	82	61	106
Interest Paid, Excluding Capitalized Interest, Operating Activities	$ 196	$ 168	$ 160

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Total Stockholders Equity	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Noncontrolling Interest [Member]
Balance at beginning of period at Dec. 31, 2017		$ 722	$ 1	$ 60	$ 857	$ (199)	$ 3
Shares outstanding at beginning of period at Dec. 31, 2017			122
Comprehensive income (loss):
Net income (loss)		(87)			(88)		1
Other comprehensive (loss) income	$ (50)	(48)				(48)
Total comprehensive income (loss)		(135)			(88)	(48)	1
Cumulative Effect on Retained Earnings, Tax		15			14	1
Employee stock purchase and stock compensation plans		56		56
Employee stock purchase and stock compensation plans (in shares)			2
Stock Repurchased During Period, Shares			(6)
Stock Repurchased During Period, Value		(210)	$ 0	(82)	(128)
Dividends, Preferred Stock		(49)			(49)
Balance at end of period at Dec. 31, 2018		399	$ 1	34	606	(246)	4
Shares outstanding at end of period at Dec. 31, 2018			118
Comprehensive income (loss):
Net income (loss)		566			564		2
Other comprehensive (loss) income	(26)	(25)				(23)	(2)
Total comprehensive income (loss)		541			564	(23)	0
Employee stock purchase and stock compensation plans		94		94
Employee stock purchase and stock compensation plans (in shares)			3
Stock Repurchased During Period, Shares			(3)
Stock Repurchased During Period, Value		(96)		96
Dividends, Preferred Stock		(43)			(43)
Stock Issued During Period, Shares, Conversion of Convertible Securities			9
Redemption of Preferred Shares		(205)		(272)
Dividend distribution		(1)					1
Deemed Dividend on Preferred Stock Redemption	(67)				(67)
Repurchase of non-controlling interest		8		8
Balance at end of period at Dec. 31, 2019	$ 1,107	1,107	$ 1	312	1,060	(269)	3
Shares outstanding at end of period at Dec. 31, 2019	127.7		127
Comprehensive income (loss):
Net income (loss)		(78)			(79)		1
Other comprehensive (loss) income	$ (2)	(2)				(2)
Total comprehensive income (loss)		(80)			(79)	(2)	1
Employee stock purchase and stock compensation plans		97		97
Employee stock purchase and stock compensation plans (in shares)			4
Stock Repurchased During Period, Shares			(2)
Stock Repurchased During Period, Value		(41)		41
Dividends, Preferred Stock		(19)			(19)
Stock Issued During Period, Shares, Conversion of Convertible Securities			0
Redemption of Preferred Shares				0
Dividend distribution		(1)					1
Deemed Dividend on Preferred Stock Redemption	(12)				(12)
Balance at end of period at Dec. 31, 2020	$ 1,051	$ 1,051	$ 1	$ 368	$ 950	$ (271)	$ 3
Shares outstanding at end of period at Dec. 31, 2020	129.1		129

Description of Business and Sig

Description of Business and Significant Accounting Policies	12 Months Ended
Description of Business and Significant Accounting Policies	Dec. 31, 2020
Description of Business and Significant Accounting Policies [Abstract]
Business Description and Accounting Policies [Text Block]	1. BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Description of Business NCR is a leading software- and services-led enterprise provider in the financial, retail, hospitality, and telecommunications and technology industries. NCR is a global company that is headquartered in Atlanta, Georgia. NCR offers a range of solutions that help businesses of all sizes run the store, run the restaurant and run self-service banking channels. Our portfolio includes digital first offerings for banking, restaurants and retailers, as well as payments processing, multi-vendor connected device services, automated teller machines (ATMs), point of sale (POS) terminals and self-service technologies. We also resell third-party networking products and provide related service offerings in the telecommunications and technology sectors. Our solutions are also designed to support our transition to an as-a-Service company and enable us to be the technology-based service provider of choice to our customers. Use of Estimates The preparation of financial statements in accordance with generally accepted accounting principles in the United States (U.S. GAAP) requires management to make estimates and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and revenue and expenses during the periods reported. Although our estimates contemplate current and expected future conditions, as applicable, it is reasonably possible that actual conditions could differ from our expectations, which could materially affect our results of operations and financial position. In particular, a number of estimates have been and will continue to be affected by the ongoing novel coronavirus (COVID-19) pandemic. The severity, magnitude and duration of the COVID-19 pandemic, and the resulting economic consequences, are uncertain, rapidly changing and difficult to predict. As a result, our accounting estimates and assumptions may change over time as a consequence of the effects of the COVID-19 pandemic. Such changes could result in future impairments of goodwill, intangible assets, long-lived assets, incremental credit losses on accounts receivable and decreases in the carrying amount of our tax assets. Subsequent Events The Company evaluated subsequent events through the date that our Consolidated Financial Statements were issued. Other than the items discussed below and within the notes to the Consolidated Financial Statements, no matters were identified that required adjustment of the Consolidated Financial Statements or additional disclosure. Announced proposed transaction with Cardtronics On January 25, 2021, NCR entered into a definitive agreement with to acquire all outstanding shares of Cardtronics plc for $39.00 per share. The transaction is subject to regulatory approval and customary closing conditions, including approval by Cardtronics' shareholders, and is expected to close in mid-2021. Cardtronics is the world's largest non-bank ATM operator and service provider enabling cash transactions by converting digital currency into physical cash at over 285,000 ATMs across 10 countries in North America, Europe, Asia-Pacific, and Africa. Completed acquisitions of Freshop On January 6, 2021, NCR completed its acquisition of Freshop, Inc., for which we purchased all outstanding shares and as a result Freshop will become a wholly-owned subsidiary of NCR in the first quarter of 2021. Freshop is a leading provider of digital online ordering platforms which provides retailers the ability to quickly deploy "buy-online, pickup-in-store" capabilities. Completed acquisition of Terafina On February 5, 2021, NCR completed its acquisition of Terafina, Inc., for which we purchased all outstanding shares and as a result Terafina will become a wholly-owned subsidiary of NCR in the first quarter of 2021. Terafina is a leading solution provider for customer account opening and onboarding across digital, branch and call center channels. Basis of Consolidation The consolidated financial statements include the accounts of NCR and its majority-owned subsidiaries. Long-term investments in affiliated companies in which NCR owns between 20% and 50%, and therefore, exercises significant influence, but which it does not control, are accounted for using the equity method. Investments in which NCR does not exercise significant influence (generally, when NCR has an investment of less than 20% and no significant influence, such as representation on the investee’s board of directors) are accounted for using the cost method. All significant inter-company transactions and accounts have been eliminated. In addition, the Company is required to determine whether it is the primary beneficiary of economic income or losses that may be generated by variable interest entities in which the Company has such an interest. In circumstances where the Company determined it is the primary beneficiary, consolidation of that entity would be required. For the periods presented, no variable interest entities have been consolidated. Reclassifications Certain prior-period amounts have been reclassified in the accompanying Consolidated Financial Statements and Notes thereto in order to conform to the current period presentation. Revenue Recognition The Company records revenue, net of sales tax, when the following five steps have been completed: • Identification of the contract(s) with a customer • Identification of the performance obligation(s) in the contract • Determination of the transaction price • Allocation of the transaction price to the performance obligations in the contract • Recognition of revenue when, or as, we satisfy performance obligations The Company records revenue when, or as, performance obligations are satisfied by transferring control of a promised good or service to the customer, in an amount that reflects the consideration we expect to be entitled to in exchange for products and services. The Company evaluates the transfer of control primarily from the customer’s perspective where the customer has the ability to direct the use of and obtain substantially all of the remaining benefits from that good or service. NCR enters contracts that include multiple distinct performance obligations, including hardware, software, professional consulting services, installation services and maintenance support services. A promise to a customer is considered distinct when the product or service is both capable of being distinct, and distinct in the context of the contract. For these arrangements, the Company allocates the transaction price, at contract inception, to each distinct performance obligation on a relative standalone selling price basis. The primary method used to estimate standalone selling price is the price that the Company charges for that good or service when the Company sells it separately in similar circumstances to similar customers. For hardware products, control is generally transferred when the customer has the ability to direct the use of and obtain substantially all of the remaining benefits of the products, which generally coincides with when the customer has assumed title and risk of loss of the goods sold. In certain instances, customer acceptance is required prior to the passage of title and risk of loss of the delivered products. In such cases, revenue is not recognized until customer acceptance is obtained. Delivery, acceptance, and transfer of title and risk of loss generally occur in the same reporting period. NCR's customers may request that delivery and passage of title and risk of loss occur on a bill and hold basis. For the period ending December 31, 2020 and 2019, the revenue recognized from bill and hold transactions approximated 1% of total revenue. Hardware products may also be provided as a service when included in a package sold with software and services. In these instances, revenue is recognized in accordance with the lease accounting standard and depending on the terms and conditions included in the contract may be either sales-type leases or operating leases. Revenue from hardware sales-type leases is recognized at the beginning of the lease term and revenue from operating leases is recognized on a straight-line basis over the term of the contract. Software products may be sold as perpetual licenses, term-based licenses, cloud-enabled and software as a service (SaaS). Perpetual license revenue is recognized at a point in time when control transfers to the customer and reported within product revenue. Control is typically transferred when the customer takes possession of, or has access to, the software. Term-based license revenue is recognized at a point in time upon the commencement of the committed term of the contract, concurrent with the possession of the license, and reported within product revenue. The committed term of the contract is typically one month to one year due to customer termination rights. If the amount of consideration the Company expects to be paid in exchange for the licenses depends on customer usage, revenue is recognized when the usage occurs. Software as a service primarily consists of fees to provide our customers access to our platform and cloud-based applications for a specified contract term. Revenue from SaaS contracts is recognized as variable consideration directly allocated based on customer usage or on a ratable basis over the contract term beginning on the date that our service is made available to the customer. SaaS is reported as part of our services revenue. The Company sells some product solutions that include a combination of cloud-enabled and on-premise term-based software licenses for a specified contract term. Significant judgment is required to determine if the services and products represent distinct promises to the customer or if they should be combined into one performance obligation. When they are combined into one performance obligation, revenue is recognized ratably over the contract term for which the service is provided. In addition to SaaS, our services revenue includes professional consulting, installation and maintenance support. Professional consulting primarily consists of software implementation, integration, customization and optimization services. Revenue from professional consulting contracts is recognized when the services are completed or customer acceptance of the service is received, if required. For installation and maintenance, control is transferred as the services are provided or ratably over the service period, or, if applicable, after customer acceptance of the service. We apply the ‘as invoiced’ practical expedient, for performance obligations satisfied over time, if the amount we may invoice corresponds directly with the value to the customer of the Company’s performance to date. This expedient permits us to recognize revenue in the amount we invoice the customer. The nature of our arrangements gives rise to several types of variable consideration including service level agreement credits, stock rotation rights, trade-in credits and volume-based rebates. At contract inception, we include this variable consideration in our transaction price when there is a basis to reasonably estimate the amount of the fee and it is probable there will not be a significant reversal. These estimates are generally made using the expected value method and a portfolio approach, based on historical experience, anticipated performance and our best judgment at the time. These estimates are reassessed at each reporting date. Because of our confidence in estimating these amounts, they are included in the transaction price of our contracts and the associated remaining performance obligations. Payment terms with our customers are established based on industry and regional practices and generally do not exceed 30 days. We do not typically include extended payment terms in our contracts with customers. As a practical expedient, we do not adjust the promised amount of consideration for the effects of a significant financing component when we expect, at contract inception, that the period between our transfer of a promised product or service to a customer and when the customer pays for that product or service will be one year or less. If the period between transfer of the promised product or service and payment is more than one year, the Company analyzes whether a significant financing component is present. If so, the Company adjusts the total consideration to reflect the significant financing component. The Company also does not adjust the transaction price for taxes collected from customers, as those amounts are netted against amounts remitted to government authorities. We account for shipping and handling activities related to contracts with customers as costs to fulfill our promise to transfer the associated products, rather than as a separate performance obligation. Accordingly, we record amounts billed for shipping and handling costs as a component of net product sales, and classify such costs as a component of cost of products. In addition to the standard product warranty, the Company periodically offers extended warranties to its customers in the form of product maintenance services. For maintenance contracts that have been combined with product contracts under the revenue guidance, the Company defers revenue at an amount based on the relative standalone selling price allocation, and recognizes the deferred revenue over the service term. For non-combined maintenance contracts, NCR defers the stated amount of the separately priced service and recognizes the deferred revenue over the service term. Remaining Performance Obligations Remaining performance obligations represent the transaction price of orders for which products have not been delivered or services have not been performed. As of December 31, 2020, the aggregate amount of the transaction price allocated to remaining performance obligations was approximately $3.6 billion. The Company expects to recognize revenue on approximately three-quarters of the remaining performance obligations over the next 12 months, with the remainder recognized thereafter. The majority of our professional services are expected to be recognized over the next 12 months but this is contingent upon a number of factors, including customers’ needs and schedules. The Company has made two elections which affect the value of remaining performance obligations described above. We do not disclose remaining performance obligations for SaaS contracts where variable consideration is directly allocated based on usage or when the original expected length is one year or less. Warranty and Sales Returns Provisions for product warranties and sales returns and allowances are recorded in the period in which NCR becomes obligated to honor the related right, which generally is the period in which the related product revenue is recognized. The Company accrues warranty reserves based upon historical factors such as labor rates, average repair time, travel time, number of service calls per machine and cost of replacement parts. When a sale is consummated, a warranty reserve is recorded based upon the estimated cost to provide the service over the warranty period. The Company accrues sales returns and allowances using percentages of revenue to reflect the Company’s historical average of sales return claims. Research and Development Costs Research and development costs primarily include payroll and benefit-related costs, contractor fees, facilities costs, infrastructure costs, and administrative expenses directly related to research and development support and are expensed as incurred, except certain software development costs are capitalized after technological feasibility of the software is established. Advertising Advertising costs are recognized in selling, general and administrative expenses when incurred. Stock-based Compensation Stock-based compensation represents the costs related to share-based awards granted to employees and non-employee directors. The Company’s outstanding stock-based compensation awards are classified as equity. The Company measures stock-based compensation cost at the grant date, based on the estimated fair value of the award and recognizes the cost over the requisite service period. See Note 7, "Stock Compensation Plans" for further information on NCR’s stock-based compensation plans. Income Taxes Income tax expense is provided based on income before income taxes. Deferred income taxes reflect the impact of temporary differences between assets and liabilities recognized for financial reporting purposes and such amounts recognized for tax purposes. These deferred taxes are determined based on the enacted tax rates expected to apply in the periods in which the deferred assets or liabilities are expected to be settled or realized. NCR records valuation allowances related to its deferred income tax assets when it is more likely than not that some portion or all of the deferred income tax assets will not be realized. The Company recognizes the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the consolidated financial statements from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being sustained upon examination by authorities. Interest and penalties related to uncertain tax positions are recognized as part of the provision for income taxes and are accrued beginning in the period that such interest and penalties would be applicable under relevant tax law and until such time that the related tax benefits are recognized. Earnings Per Share Basic earnings per share (EPS) is calculated by dividing net income, less any dividends, accretion or decretion, redemption or induced conversion on our Series A Convertible Preferred Stock, by the weighted average number of shares outstanding during the reported period. In computing diluted EPS, we evaluate and reflect the maximum potential dilution, for each issue or series of issues of potential common shares in sequence from the most dilutive to the least dilutive. We adjust the numerator used in the basic EPS computation, subject to anti-dilution requirements, to add back the dividends (declared or cumulative undeclared) applicable to the Series A Convertible Preferred Stock. Such add-back would also include any adjustments to equity in the period to accrete the Series A Convertible Preferred Stock to its redemption price, or recorded upon a redemption or induced conversion. We adjust the denominator used in the basic EPS computation, subject to anti-dilution requirements, to include the dilution from potential shares resulting from the issuance of the Series A Convertible Preferred Stock, restricted stock units, and stock options. The holders of Series A Convertible Preferred Stock and unvested restricted stock units do not have nonforfeitable rights to common stock dividends or common stock dividend equivalents. Accordingly, the Series A Convertible Preferred Stock and unvested restricted stock units do not qualify as participating securities. See Note 7, "Stock Compensation Plans" for share information on NCR’s stock compensation plans. The components of basic earnings (loss) per share are as follows: In millions, except per share amounts Year ended December 31 2020 2019 2018 Numerator: Income (loss) from continuing operations $ (7) $ 614 $ (36) Series A convertible preferred stock dividends (31) (110) (49) Net income (loss) from continuing operations attributable to NCR common stockholders (38) 504 (85) Loss from discontinued operations, net of tax (72) (50) (52) Net income (loss) attributable to NCR common stockholders $ (110) $ 454 $ (137) Denominator: Basic weighted average number of shares outstanding 128.4 122.1 118.4 Basic earnings (loss) per share: From continuing operations $ (0.30) $ 4.13 $ (0.72) From discontinued operations (0.56) (0.41) (0.44) Total basic earnings (loss) per share $ (0.86) $ 3.72 $ (1.16) The components of diluted earnings (loss) per share are as follows: In millions, except per share amounts Year ended December 31 2020 2019 2018 Numerator: Income (loss) from continuing operations $ (7) $ 614 $ (36) Series A convertible preferred stock dividends (31) (76) (49) Net income (loss) from continuing operations attributable to NCR common stockholders (38) 538 (85) Loss from discontinued operations, net of tax (72) (50) (52) Net income (loss) attributable to NCR common stockholders $ (110) $ 488 $ (137) Denominator: Basic weighted average number of shares outstanding 128.4 122.1 118.4 Dilutive effect of as-if Series A Convertible Preferred Stock — 19.5 — Dilutive effect of employee stock options and restricted stock units — 3.6 — Weighted average diluted shares 128.4 145.2 118.4 Diluted earnings (loss) per share: From continuing operations $ (0.30) $ 3.71 $ (0.72) From discontinued operations (0.56) (0.35) (0.44) Total diluted earnings (loss) per share $ (0.86) $ 3.36 $ (1.16) For 2020, due to the net loss attributable to NCR common stockholders, potential common shares that would cause dilution, such as Series A Convertible Preferred Stock, restricted stock units and stock options, have been excluded from the diluted share count because their effect would been anti-dilutive. The weighted average outstanding shares of common stock were not adjusted by 9.1 million for the as-if converted Series A Convertible Preferred Stock because the effect would be anti-dilutive. Refer to Note 11, "Series A Convertible Preferred Stock" for additional discussion related to the transaction impacting the Series A Convertible Preferred Stock. Additionally, for 2020, weighted average restricted stock units and stock options of 11.2 million were excluded from the diluted share count because their effect would have been anti-dilutive. For 2019, it is more dilutive to assume the portion of the Series A Convertible Preferred Stock that was redeemed was not converted to common stock. Therefore, weighted average outstanding shares of common stock were not adjusted by 5.7 million for the as-if converted Series A Convertible Preferred Stock that was redeemed because the effect would be anti-dilutive. Refer to Note 11, "Series A Convertible Preferred Stock" for additional discussion related to the transaction impacting the Series A Convertible Preferred Stock. Additionally, for 2019, weighted average restricted stock units and stock options of 4.3 million were excluded from the diluted share count because their effect would have been anti-dilutive. For 2018, due to the net loss attributable to NCR common stockholders, potential common shares that would cause dilution, such as Series A Convertible Preferred Stock, restricted stock units and stock options, have been excluded from the diluted share count because their effect would been anti-dilutive. The weighted average outstanding shares of common stock were not adjusted by 28.3 million for the as-if converted Series A Convertible Preferred Stock because the effect would be anti-dilutive. Additionally, for 2018, weighted average restricted stock units and stock options of 5.6 million were excluded from the diluted share count because their effect would have been anti-dilutive. Cash and Cash Equivalents All short-term, highly liquid investments having original maturities of three months or less, including time deposits, are considered to be cash equivalents. The Company has restricted cash on deposit with a bank as collateral for letters of credit, funds held for clients as well as cash included in settlement processing assets. The reconciliation of cash, cash equivalents and restricted cash in the Consolidated Statements of Cash Flows is as follows: In millions Balance Sheet Location December 31, 2020 December 31, 2019 December 31, 2018 Cash and cash equivalents Cash and cash equivalents $ 338 $ 509 $ 464 Restricted cash Other assets 9 7 12 Funds held for client Other current assets 44 32 46 Cash included in settlement processing assets Other current assets 15 15 10 Total cash, cash equivalents and restricted cash $ 406 $ 563 $ 532 Accounts Receivable, net Accounts receivable, net includes amounts billed and currently due from customers as well as amounts unbilled that typically result from sales under contracts where revenue recognized exceeds the amount billed to the customer and where the Company has an unconditional right to consideration. The amounts due are stated at their net estimated realizable value. Allowance for Credit Losses on Accounts Receivable Allowances for credit losses on accounts receivable are recognized when reasonable and supportable forecasts affect the expected collectability. This requires us to make our best estimate of the current expected losses inherent in our accounts receivable at each balance sheet date. These estimates require consideration of historical loss experience, adjusted for current conditions, forward looking indicators, trends in customer payment frequency and judgments about the probable effects of relevant observable data, including present and future economic conditions and the financial health of specific customers and market sectors. This policy is applied consistently among all of our operating segments. Our allowance for credit losses as of December 31, 2020 and January 1, 2020 was $51 million and $44 million, respectively. For the year ended December 31, 2020, our allowance for credit losses charged to expense was $33 million. We increased our allowance for credit losses in the year ended December 31, 2020 by $10 million based upon current forecasts that reflect increased economic uncertainty resulting from the COVID-19 pandemic. The Company recorded $26 million of write-offs against the reserve for the year ended December 31, 2020. Inventories Inventories are stated at the lower of cost or net realizable value, using the average cost method. Cost includes materials, labor and manufacturing overhead related to the purchase and production of inventories. Service parts are included in inventories and include reworkable and non-reworkable service parts. The Company regularly reviews inventory quantities on hand, future purchase commitments with suppliers and the estimated utility of inventory. If the review indicates a reduction in utility below carrying value, inventory is reduced to a new cost basis. Excess and obsolete write-offs are established based on forecasted usage, orders, technological obsolescence and inventory aging. Contract Assets and Liabilities Contract assets include unbilled amounts where right to payment is not solely subject to the passage of time. Amounts may not exceed their net realizable value. Contract liabilities consist of advance payments, billings in excess of revenue recognized and deferred revenue. Our contract assets and liabilities are reported in a net position on a contract-by-contract basis at the end of each reporting period. If the net position is a contract asset, the current portion is included in other current assets and the non-current portion is included in other assets in the Consolidated Balance Sheet. If the net position is a contract liability, the current portion is included in contract liabilities and the non-current portion is included in other liabilities in the Consolidated Balance Sheet. The following table presents the net contract asset and contract liability balances: In millions Location in the Consolidated Balance Sheet December 31, 2020 December 31, 2019 Current portion of contract assets Other current assets $ — $ 9 Current portion of contract liabilities Contract liabilities $ 507 $ 502 Non-current portion of contract liabilities Other liabilities $ 80 $ 81 During the twelve months ended December 31, 2020 and 2019, the Company recognized $407 million and $341 million, respectively, in revenue that was included in contract liabilities as of January 1, 2019 and 2018, respectively. Deferred Commissions Our incremental costs of obtaining a contract, which consist of certain sales commissions, primarily for our SaaS revenue, are deferred and amortized on a straight-line basis over the period of expected benefit. We determined the period of expected benefit by taking into consideration customer contracts, the estimated life of the customer relationship, including renewals when the renewal commission is not commensurate with the initial commission, the expected life of the underlying technology and other factors. We classify deferred commissions as current or non-current based on the timing of when we expect to recognize the expense. The current and non-current portions of deferred commissions are included in other current assets and other assets, respectively, in the Consolidated Balance Sheets. Amortization of deferred commissions is included in selling, general and administrative expenses in the Consolidated Statements of Operations. Set-up Fees and Costs Fees for the design, configuration, implementation and installation related to the software applications that are provided as a service are recognized over the contract term, which is generally 5 years. The related costs incurred that are determined to be incremental and recoverable contract-specific costs are deferred and amortized over the period of benefit, which is generally 7 years. Settlement Processing Assets and Obligations Funds settlement refers to the process of transferring funds for sales and credits between card issuers and merchants. Depending on the type of transaction, either the credit card interchange system or the debit network is used to transfer the information and funds between the sponsoring bank and card issuing bank to complete the link between merchants and card issuers. In certain of our processing arrangements, merchant funding primarily occurs after the sponsoring bank receives the funds from the card issuer through the card networks, creating a net settlement obligation on the Company’s Consolidated Balance Sheet. In a limited number of other arrangements, the sponsoring bank funds the merchants before it receives the net settlement funds from the card networks, creating a net settlement asset on the Company’s Consolidated Balance Sheet. Additionally, certain of the Company’s sponsoring banks collect the gross revenue from the merchants, pay the interchange fees and assessments to the credit card associations, collect their fees for processing and pay the Company a net residual payment representing the Company’s fees for the services. In these instances, the Company does not reflect the related settlement processing assets and obligations in its Consolidated Balance Sheet. Settlement processing assets consist of our portion of settlement assets due from customers and receivables from merchants for the portion of the discount fee related to reimbursement of the interchange expense, our receivable from the processing bank for transactions we have funded merchants in advance of receipt of card association funding, restricted cash balances that are not yet due to merchants, merchant reserves held, sponsoring bank reserves and exception items, such as customer chargeback amounts receivable from merchants. Settlement processing obligations consist primarily of merchant reserves, our liability to the processing bank for transactions for which we have received funding from the members but have not funded merchants and exception items. Settlement processing assets are recorded within other current assets and settlement processing liabilities are recorded within other current liabilities in the Consolidated Balance Sheet. As of December 31, 2020 and 2019, settlement processing assets were $33 million and $33 million, respectively, and settlement processing liabilities were $31 million and $31 million, respectively. Settlement receivables are generally collected within four business days. Settlement obligations are generally paid within three business days, regardless of when the related settlement receivables are collected. Capitalized Software Certain direct development costs associated with internal-use software are capitalized within other assets and amortized over the estimated useful lives of the resulting software. NCR typically amortizes capitalized internal-use software on a straight-line basis over four Costs incurred for the development of software that will be sold, leased or

Goodwill and Purchased Intangib

Goodwill and Purchased Intangible Assets	12 Months Ended
Goodwill and Purchased Intangible Assets	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Purchased Intangible Assets	2. GOODWILL AND PURCHASED INTANGIBLE ASSETS Goodwill by Segment The carrying amounts of goodwill by segment as of December 31, 2020, 2019, and 2018 are included in the tables below. Foreign currency fluctuations are included within other adjustments . December 31, 2019 December 31, 2020 In millions Goodwill Accumulated Impairment Losses Total Additions Impairment Other Goodwill Accumulated Impairment Losses Total Banking $ 1,774 $ (101) $ 1,673 $ — $ — $ (2) $ 1,772 $ (101) $ 1,671 Retail 638 (34) 604 — — 5 643 (34) 609 Hospitality 402 (23) 379 1 — 1 404 (23) 381 T&T 187 (11) 176 — — — 187 (11) 176 Total goodwill $ 3,001 $ (169) $ 2,832 $ 1 $ — $ 4 $ 3,006 $ (169) $ 2,837 December 31, 2018 December 31, 2019 In millions Goodwill Accumulated Impairment Losses Total Additions Impairment Other Goodwill Accumulated Impairment Losses Total Banking $ 1,718 $ (101) $ 1,617 $ 54 $ — $ 2 $ 1,774 $ (101) $ 1,673 Retail 571 (34) 537 67 — — 638 (34) 604 Hospitality 385 (23) 362 17 — — 402 (23) 379 T&T 187 (11) 176 — — — 187 (11) 176 Total goodwill $ 2,861 $ (169) $ 2,692 $ 138 $ — $ 2 $ 3,001 $ (169) $ 2,832 In early 2020, there was significant market volatility driven by the COVID-19 pandemic that resulted in uncertainty around our full year revenue and operating income expectations. As a result, we withdrew our full year outlook for 2020 on March 31, 2020, which was previously provided during our fourth quarter 2019 earnings conference call on February 11, 2020. Given the rapidly changing environment, we considered if there was an indication the carrying value of net assets were in excess of the fair value for each of our reporting units. This consideration included the expected impacts to the current year cash flows, the potential impacts to future cash flows as well as the excess of the fair value over the carrying value from the prior year annual assessment. As a result, we determined there was an indication that the carrying value of the net assets assigned to the Hospitality reporting unit may not be recoverable. Based on the assessment completed as of March 31, 2020, it was determined the fair value of the Hospitality reporting unit was greater than the carrying value. As discussed in Note 1, “Basis of Presentation and Significant Accounting Policies” NCR completed the annual goodwill impairment test during the fourth quarter of 2020. The Company elected to perform a qualitative assessment for the Banking, Retail, and T&T reporting units and a quantitative analysis for the Hospitality reporting unit. Based on the qualitative assessments completed, it was determined that the fair value of the Banking, Retail and T&T reporting units were substantially in excess of the carrying value. For the quantitative assessment of the Hospitality reporting unit, the fair value was estimated using a weighted methodology considering the output from both the income and market approaches. The income approach incorporates the use of discounted cash flow (DCF) analysis. A number of significant assumptions and estimates are involved in the application of the discounted cash flow model to forecast operating cash flows, including revenue growth, operating income margin and discount rate. The market approach is performed using the Guideline Public Companies (GPC) method which is based on earnings multiple data of peer companies. The Company expects the COVID-19 pandemic to have a significant impact to the Hospitality customers in the table service market, travel and entertainment market and small and medium business market in the near term. However, the expectation is the long term growth strategy will remain intact. Based on the quantitative assessment completed for the annual goodwill impairment test, the Company determined the fair value of the Hospitality reporting unit continues to be greater than the carrying value. However, if the actual results or the anticipated timing of the recovery from the COVID-19 pandemic differ from our expectations for the Hospitality, or any, reporting unit, there is a possibility we would have to perform an interim impairment test in 2021, which could lead to an impairment of goodwill or other assets. During the year ended December 31, 2018, the Company recorded impairment charges of $146 million under the previous segment reporting structure where it was determined there was an indication that the carrying value of the net assets assigned to the Hardware reporting unit may not be recoverable. These charges were recorded in the line item asset impairment charges in our Consolidated Statement of Operations for the year ended December 31, 2018. Identifiable Intangible Assets NCR's purchased intangible assets, reported in intangibles, net in the Consolidated Balance Sheets, were specifically identified when acquired, and are deemed to have finite lives. The gross carrying amount and accumulated amortization for NCR’s identifiable intangible assets were as set forth in the table below. Amortization December 31, 2020 December 31, 2019 In millions Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Identifiable intangible assets Reseller & customer relationships 1 - 20 $ 740 $ (324) $ 735 $ (270) Intellectual property 2 - 8 531 (418) 529 (397) Customer contracts 8 89 (89) 89 (89) Tradenames 1 - 10 77 (74) 78 (68) Total identifiable intangible assets $ 1,437 $ (905) $ 1,431 $ (824) The aggregate amortization expense (actual and estimated) for identifiable intangible assets for the following periods is: For the year ended December 31, 2020 For the years ended December 31 (estimated) In millions 2021 2022 2023 2024 2025 Amortization expense $ 81 $ 72 $ 68 $ 66 $ 59 $ 51

Business Combinations and Dives

Business Combinations and Divestitures	12 Months Ended
Business Combinations and Divestitures	Dec. 31, 2019
Business Combinations [Abstract]
Acquisitions	3. BUSINESS COMBINATIONS AND DIVESTITURES 2020 Acquisition Acquisition of Origami On June 6, 2019, our subsidiary, NCR Brasil Ltda. (NCR Brasil) entered into a definitive agreement with OKI Electric Industry Co., Ltd. and its Brazilian subsidiary, OKI Brasil Industria e Comércio de Produtos e Tecnologia em Automação S.A. (OKI Brasil), to purchase OKI Brasil's IT services and select software assets for use in the financial, retail and other industries. Neither OKI Brasil's manufacturing operations nor its printing business in Brazil were included in the acquisition. On April 9, 2020, NCR Brasil completed this acquisition through the purchase of 100% of the quotas of Origami Brasil Tecnologia e Serviços em Automação Ltda. (Origami), which became a wholly-owned subsidiary of NCR Brasil. The purchase price was approximately $5 million, of which $2 million is payable in cash within two years of the acquisition date, subject to certain conditions, and the remaining $3 million is payable in cash within six years of the acquisition date, subject to purchase price adjustments. The fair value of consideration transferred to acquire Origami was allocated to the identifiable assets and liabilities assumed based upon their estimated fair values as of the date of acquisition as set forth below. The acquisition has resulted in a bargain purchase gain based on the purchase price being limited mostly to the net assets of the business excluding cash and investments. The bargain purchase gain has been recorded in other income (expense), net within the Consolidated Statement of Operations. In millions Fair Value Cash acquired $ 1 Investments acquired 9 Tangible assets acquired 18 Bargain purchase gain on business acquisition (7) Liabilities assumed (16) Total purchase consideration $ 5 The operating results of Origami have been included within NCR's results as of the closing date of the acquisition. Supplemental pro forma information and actual revenue and earnings since the acquisition date have not been provided as this acquisition did not have a material impact on the Company's Consolidated Statements of Operations. 2019 Acquisitions Acquisition of D3 Technology, Inc. On July 1, 2019, NCR completed its acquisition of D3 Technology, Inc. (D3), a leading provider of online and mobile banking for the Large Financial Institution market, for approximately $84 million, of which $83 million was paid in cash. The remaining $1 million was payable within 12 months from the date of acquisition and paid in 2020. The D3 acquisition further expands our digital banking strategy as we extend our market share in large domestic banks and international banks. As a result of the acquisition, D3 became a wholly-owned subsidiary of NCR. Recording of Assets Acquired and Liabilities Assumed The fair value of consideration transferred to acquire D3 was allocated to the identifiable assets acquired and liabilities assumed based upon their estimated fair values as of the date of the acquisition as set forth below. The final allocation of the purchase price for D3 is as follows: In millions Fair Value Cash acquired $ 9 Tangible assets acquired 6 Acquired intangible assets other than goodwill 20 Acquired goodwill 51 Deferred tax assets 6 Liabilities assumed (8) Total purchase consideration $ 84 Goodwill represents the future economic benefits arising from other assets acquired that could not be individually separately recognized. The goodwill arising from the acquisition consists of revenue synergies expected from combining the operations of NCR and D3. It is expected that none of the goodwill recognized in connection with the acquisition will be deductible for tax purposes. The goodwill arising from the acquisition has been allocated to our Banking segment. Refer to Note 2, "Goodwill and Purchased Intangible Assets" for the carrying amounts of goodwill by segment. The following table sets forth the components of the intangible assets acquired as of the acquisition date: Fair Value Weighted Average Amortization Period (1) (In millions) (In years) Direct customer relationships $ 7 11 Technology - Software 11 5 Tradenames 2 7 Total acquired intangible assets $ 20 (1) Determination of the weighted average period of the individual categories of intangible assets was based on the nature of applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with definite lives is recognized over the period of time the assets are expected to contribute to future cash flows. In connection with the closing of the acquisition, the Company incurred approximately $1 million of transaction costs, which has been included within selling, general and administrative expenses in the Consolidated Statement of Operations for the year ended December 31, 2019. The operating results of D3 have been included within NCR's results as of the closing date of the acquisition. Supplemental pro forma information and actual revenue and earnings since the acquisition date have not been provided as this acquisition did not have a material impact on the Company's Consolidated Statements of Operations. Acquisition of Zynstra Ltd. On December 21, 2019, NCR completed its acquisition of Zynstra, Ltd. (Zynstra), a leading provider of edge virtualization technology, for approximately $134 million, of which $112 million was paid in cash. The remaining $22 million was paid in 2020. The Zynstra acquisition further expands our digital retail strategy as we further enhance our next generation store architecture. As a result of the acquisition, Zynstra became a wholly-owned subsidiary of NCR. Recording of Assets Acquired and Liabilities Assumed The fair value of consideration transferred to acquire Zynstra was allocated to the identifiable assets acquired and liabilities assumed based upon their estimated fair values as of the date of the acquisition as set forth below. The final allocation of the purchase price for Zynstra is as follows: In millions Fair Value Cash acquired $ 1 Tangible assets acquired 1 Acquired intangible assets other than goodwill 76 Acquired goodwill 66 Deferred tax liability (9) Liabilities assumed (1) Total purchase consideration $ 134 Goodwill represents the future economic benefits arising from other assets acquired that could not be individually separately recognized. The goodwill arising from the acquisition consists of revenue and cost synergies expected from combining the operations of NCR and Zynstra. It is expected that none of the goodwill recognized in connection with the acquisition will be deductible for tax purposes. The goodwill arising from the acquisition has been allocated to our Retail segment. Refer to Note 2, "Goodwill and Purchased Intangible Assets" for the carrying amounts of goodwill by segment. The following table sets forth the components of the intangible assets acquired as of the acquisition date: Fair Value Weighted Average Amortization Period (1) (In millions) (In years) Technology - Software $ 75 8 Tradenames 1 1 Total acquired intangible assets $ 76 (1) Determination of the weighted average period of the individual categories of intangible assets was based on the nature of applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with definite lives is recognized over the period of time the assets are expected to contribute to future cash flows. In connection with the closing of the acquisition, the Company incurred approximately $2 million of transaction costs, which has been included within selling, general and administrative expenses in the Consolidated Statement of Operations for the year ended December 31, 2019. The operating results of Zynstra have been included within NCR's results as of the closing date of the acquisition. Supplemental pro forma information and actual revenue and earnings since the acquisition date have not been provided as this acquisition did not have a material impact on the Company's Consolidated Statements of Operations. Other 2019 acquisitions During the year ended December 31, 2019, the Company completed four acquisitions of local resellers in the hospitality industry for an aggregate purchase consideration of approximately $20 million, plus related acquisition costs. Approximately $2 million was withheld by the Company as a source of recovery for possible claims and payments under the related acquisition agreements and will be paid to the respective sellers pursuant to the terms of such agreements. Goodwill recognized related to these acquisitions was $17 million, all of which is expected to be deductible for tax purposes. The goodwill arising from these acquisitions has been allocated to the Hospitality segment. As a result of these acquisitions, NCR recorded $6 million related to identifiable intangible assets consisting primarily of customer relationships, which have a weighted-average amortization period of 8 years. Supplemental pro forma information and actual revenue and earnings since the acquisition dates have not been provided as these acquisitions did not have a material impact, individually or in the aggregate, on the Company's Consolidated Statements of Operations. 2018 Acquisitions Acquisition of JetPay Corporation On December 6, 2018, NCR completed its acquisition of JetPay Corporation (JetPay), for which it purchased (i) all outstanding shares of common stock at a price of $5.05 per share, (ii) shares of Series A Preferred Stock at $5.05 per share, (iii) shares of Series A-1 Convertible Preferred Stock at a price of $600 per share, (iv) shares of Series A-2 Convertible Preferred Stock of JetPay at a price of $600 per share, and (v) transaction costs paid on behalf of the seller for an aggregate purchase price of $193 million which was paid in cash. As a result of the acquisition, JetPay became a wholly-owned subsidiary of NCR. JetPay is a provider of end-to-end payment processing and human capital management solutions. The acquisition is consistent with NCR's continued transformation to a software- and services-driven business. JetPay complements and extends our existing capabilities by allowing us to monetize transactions via payments. Recording of Assets Acquired and Liabilities Assumed The fair value of consideration transferred to acquire JetPay was allocated to the identifiable assets acquired and liabilities assumed based upon their estimated fair values as of the date of the acquisition as set forth below. The final allocation of the purchase price for JetPay is as follows: In millions Fair Value Cash acquired $ 50 Tangible assets acquired 30 Acquired intangible assets other than goodwill 104 Acquired goodwill 96 Deferred tax liabilities (11) Liabilities assumed (76) Total purchase consideration $ 193 Goodwill represents the future economic benefits arising from other assets acquired that could not be individually separately recognized. The goodwill arising from the acquisition consists of revenue synergies expected from combining the operations of NCR and JetPay. It is expected that none of the goodwill recognized in connection with the acquisition will be deductible for tax purposes. The goodwill arising from the acquisition has been allocated to our Retail and Hospitality segments. Refer to Note 2, "Goodwill and Purchased Intangible Assets" for the carrying amounts of goodwill by segment. The following table sets forth the components of the intangible assets acquired as of the acquisition date: Fair Value Weighted Average Amortization Period (1) (In millions) (In years) Direct customer relationships $ 64 17 Technology - Software 39 9 Tradenames 1 1 Total acquired intangible assets $ 104 (1) Determination of the weighted average period of the individual categories of intangible assets was based on the nature of applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with definite lives is recognized over the period of time the assets are expected to contribute to future cash flows. In connection with the closing of the acquisition, the Company incurred approximately $4 million of transaction costs, which has been included within selling, general and administrative expenses in the Consolidated Statement of Operations for the year ended December 31, 2018. Unaudited Pro forma Information The following unaudited pro forma information presents the consolidated results of NCR and JetPay for the years ended December 31, 2018. The unaudited pro forma information is presented for illustrative purposes only. It is not necessarily indicative of the results of operations of future periods, or the results of operations that actually would have been realized had the entities been a single company during the periods presented or the results that the combined company will experience after the acquisition. The unaudited pro forma information does not give effect to the potential impact of current financial conditions, regulatory matters or any anticipated synergies, operating efficiencies or cost savings that may be associated with the acquisition. The unaudited pro forma information also does not include any integration costs or remaining future transaction costs that the companies may incur related to the acquisition as part of combining the operations of the companies. The unaudited pro forma consolidated results of operations for the year ended December 31, 2018, as if the acquisition had occurred on January 1, 2017, is as follows: In millions 2018 Revenue $ 6,468 Net income attributable to NCR $ (46) The unaudited pro forma results for the year ended December 31, 2018 include: • $4 million, net of tax, in additional amortization expense for acquired intangible assets; • $4 million, net of tax, in eliminated transaction costs as if those costs were incurred in the prior year period; and • $7 million, net of tax, in additional interest expense from the incremental borrowings under the senior secured credit facility. Other 2018 acquisitions During the third quarter of 2018, we completed the acquisition of Zipscene, LLC which aggregates and enriches data from hospitality customers to provide marketing insights back to our customers and will enable us to increase data monetization. During the fourth quarter of 2018, we completed its acquisition of StopLift Checkout Vision Systems ("StopLift"). StopLift designs artificial intelligence technology which identifies fraudulent behavior at the POS and in SCO systems.

Segment Information

Segment Information	12 Months Ended
Segment Information	Dec. 31, 2020
Segment Reporting [Abstract]
Segment Information	4. SEGMENT INFORMATION AND CONCENTRATIONS The Company manages and reports its business in the following segments: • Banking - We offer solutions to customers in the financial services industry that power their digital transformation through software, services and hardware to deliver differentiated experiences for their customers and improve efficiency for the financial institution. Our managed services and ATM-as-a-Service help banks run their end-to-end ATM channel, positioning NCR as a strategic partner. We augment these solutions by offering a full line of software, services and hardware including interactive teller machines (ITM), and recycling, multi-function and cash dispense ATMs. NCR's digital banking solutions enable anytime-anywhere convenience for a financial institution’s consumer and business customers. We also help institutions implement their Digital First platform strategy by providing solutions for banking channel services, transaction processing, imaging, and branch services. • Retail - We offer software-defined solutions to customers in the retail industry, leading with digital to connect retail operations end to end to integrate all aspects of a customer’s operations in indoor and outdoor settings from POS, to payments, inventory management, fraud and loss prevention applications, loyalty and consumer engagement. These solutions are designed to improve operational efficiency, selling productivity, customer satisfaction and purchasing decisions; provide secure checkout processes and payment systems; and increase service levels. These solutions include retail-oriented technologies such as comprehensive API-point of sale retail software platforms and applications, hardware terminals, self-service kiosks including self-checkout (SCO), payment processing solutions, and bar-code scanners. • Hospitality - We offer technology solutions to customers in the hospitality industry, including table-service, quick-service and fast casual restaurants of all sizes, that are designed to improve operational efficiency, increase customer satisfaction, streamline order and transaction processing and reduce operating costs. Our portfolio includes cloud-based software applications for point-of-sale, back office, payment processing, kitchen production, restaurant management and consumer engagement. We also provide hospitality-oriented hardware products such as POS terminals, order and payment kiosks, bar code scanners, printers and peripherals. And finally, we help reduce the complexities of running the restaurant through our services capabilities including strategic advisory, technology deployment and implementation, hardware and software maintenance and managed services. • Telecommunications and Technology (T&T) - We offer maintenance, managed and professional services using solutions such as remote management and monitoring services, which are designed to improve operational efficiency, network availability and end-user experience, to customers in the telecommunications and technology industry. We also provide such services to end users on behalf of select manufacturers leveraging our global service capability, and resell third party networking products to customers in a variety of industries. These segments represent components of the Company for which separate financial information is available that is utilized on a regular basis by the chief operating decision maker in assessing segment performance and in allocating the Company's resources. Management evaluates the performance of the segments based on revenue and segment operating income. Assets are not allocated to segments, and thus are not included in the assessment of segment performance, and consequently, we do not disclose total assets by reportable segment. The accounting policies used to determine the results of the operating segments are the same as those utilized for the consolidated financial statements as a whole. Inter-segment sales and transfers are not material. To maintain operating focus on business performance, non-operational items are excluded from the segment operating results utilized by our chief operating decision maker in evaluating segment performance and are separately delineated to reconcile back to total reported income from operations. The following table presents revenue and operating income by segment for the years ended December 31: In millions 2020 2019 2018 Revenue by segment Banking $ 3,098 $ 3,512 $ 3,183 Retail 2,080 2,217 2,097 Hospitality 684 843 817 T&T 345 343 308 Consolidated revenue $ 6,207 $ 6,915 $ 6,405 Operating income by segment Banking $ 381 $ 514 $ 412 Retail 116 144 142 Hospitality 7 56 85 T&T 26 44 49 Subtotal - segment operating income 530 758 688 Other adjustments (1) 309 147 497 Income from operations $ 221 $ 611 $ 191 (1) The following table presents the other adjustments for NCR for the years ended December 31: In millions 2020 2019 2018 Transformation and restructuring costs $ 227 $ 58 $ 223 Acquisition-related amortization of intangibles 81 86 85 Acquisition-related costs 1 3 6 Asset impairment charges — — 183 Total other adjustments $ 309 $ 147 $ 497 The following table presents revenue from products and services for NCR for the years ended December 31: In millions 2020 2019 2018 Recurring revenue (1) $ 3,338 $ 3,182 $ 2,970 All other products and services 2,869 3,733 3,435 Consolidated revenue $ 6,207 $ 6,915 $ 6,405 (1) Recurring revenue includes all revenue streams from contracts where there is a predictable revenue pattern that will occur at regular intervals with a relatively high degree of certainty. This includes hardware and software maintenance revenue, cloud revenue, payment processing revenue, and certain professional services arrangements as well as term-based software license arrangements that include customer termination rights. Revenue is attributed to the geographic area to which the product is delivered or in which the service is provided. The following table presents revenue by geographic area for NCR for the years ended December 31: In millions 2020 % 2019 % 2018 % Revenue by Geographic Area United States $ 3,065 49 % $ 3,481 50 % $ 3,076 48 % Americas (excluding United States) 617 10 % 693 10 % 631 10 % Europe, Middle East and Africa 1,679 27 % 1,843 27 % 1,751 27 % Asia Pacific 846 14 % 898 13 % 947 15 % Consolidated revenue $ 6,207 100 % $ 6,915 100 % $ 6,405 100 % The following table presents property, plant and equipment by geographic area as of December 31: In millions 2020 2019 Property, plant and equipment, net United States $ 244 $ 280 Americas (excluding United States) 14 14 Europe, Middle East and Africa 75 74 Asia Pacific 40 45 Consolidated property, plant and equipment, net $ 373 $ 413 Concentrations No single customer accounts for more than 10% of NCR’s consolidated revenue and accounts receivable as of December 31, 2020 and 2019. As of December 31, 2020 and 2019, NCR is not aware of any significant concentration of business transacted with a particular customer that could, if suddenly eliminated, have a material adverse effect on NCR’s operations. NCR also lacks a concentration of available sources of labor, services, licenses or other rights that could, if suddenly eliminated, have a material adverse effect on its operations. A number of NCR’s products, systems and solutions rely primarily on specific suppliers for microprocessors and other component products, manufactured assemblies, operating systems, commercial software and other central components. NCR also utilizes contract manufacturers in order to complete manufacturing activities. There can be no assurances that any sudden impact to the availability or cost of these technologies or services would not have a material adverse effect on NCR’s operations.

Debt Obligations

Debt Obligations	12 Months Ended
Debt Obligations	Dec. 31, 2020
Debt Disclosure [Abstract]
Debt Obligations	5. DEBT OBLIGATIONS The following table summarizes the Company's short-term borrowings and long-term debt: December 31, 2020 December 31, 2019 In millions, except percentages Amount Weighted-Average Interest Rate Amount Weighted-Average Interest Rate Short-Term Borrowings Current portion of Senior Secured Credit Facility (1) $ 8 2.65% $ 8 4.30% Trade Receivables Securitization Facility (1) — —% 270 2.65% Other (1) — —% 4 2.82% Total short-term borrowings $ 8 $ 282 Long-Term Debt Senior Secured Credit Facility: Term loan facility (1) $ 733 2.65% $ 740 4.30% Revolving credit facility (1) 75 2.40% 265 3.76% Senior Notes: 5.00% Senior Notes due 2022 — 600 6.375% Senior Notes due 2023 — 700 8.125% Senior Notes due 2025 400 — 5.750% Senior Notes due 2027 500 500 5.000% Senior Notes due 2028 650 — 6.125% Senior Notes due 2029 500 500 5.250% Senior Notes due 2030 450 — Deferred financing fees (40) (32) Other (1) 2 7.68% 4 0.05% Total long-term debt $ 3,270 $ 3,277 (1) Interest rates are weighted average interest rates as of December 31, 2020 and 2019. Senior Secured Credit Facility On August 28, 2019, the Company entered into an amended and restated senior secured credit agreement with and among certain subsidiaries of NCR (the Foreign Borrowers), the lenders party thereto and JPMorgan Chase Bank, NA (JPMCB) as the administrative agent, refinancing its term loan facility and revolving credit facility thereunder (the Senior Secured Credit Facility). The Senior Secured Credit Facility consists of a term loan facility in an original aggregate principal amount of $750 million, of which $741 million was outstanding as of December 31, 2020. Additionally, the Senior Secured Credit Facility provides for a five-year revolving credit facility with an aggregate principal amount of $1.1 billion, of which $75 million was outstanding as of December 31, 2020. The revolving credit facility also allows a portion of the availability to be used for letters of credit, and, as of December 31, 2020, outstanding letters of credit were $26 million. Up to $400 million of the revolving credit facility is available to the Foreign Borrowers, as long as there is availability under the revolving credit facility. Term loans were made to the Company in U.S. Dollars, and loans under the revolving credit facility are available in U.S. Dollars, Euros and Pound Sterling. The outstanding principal balance of the term loan facility is required to be repaid in equal quarterly installments of 0.25% of the original aggregate principal amount that began with the fiscal quarter ending December 31, 2019, with the balance being due at maturity on August 28, 2026 and may be repaid and reborrowed prior to maturity, subject to the satisfaction of customary conditions. Borrowings under the revolving portion of the credit facility are due August 28, 2024. Revolving loans outstanding under the Senior Secured Credit Facility denominated in U.S. Dollars bear interest at the Company's option at (a) London Inter-bank Offered Rate (LIBOR), plus a margin ranging from 1.25% to 2.25% or (b) a base rate equal to the highest of (i) the federal funds rate plus 0.50%, (ii) the rate of interest last quoted by the Wall Street Journal as the “prime rate” and (iii) the one-month LIBOR rate plus 1.00% (the Base Rate), plus, a margin ranging from 0.25% to 1.25%, in each case, depending on the Company’s consolidated leverage ratio. Revolving loans denominated in Euro bear interest at the EURIBOR, plus a margin ranging from 1.25% to 2.25% depending on the Company’s consolidated leverage ratio. The terms of the Senior Secured Credit Facility also require certain other fees and payments to be made by the Company, including a commitment fee on the undrawn portion of the revolving credit facility. Term loans outstanding under the Senior Secured Credit Facility bear interest, at NCR's option, at LIBOR plus 2.50% per annum or the Base Rate plus a 1.50% margin per annum. In the event that LIBOR is no longer available or in certain other circumstances as described in the Senior Secured Credit Facility, the Senior Secured Credit Facility provides a mechanism for determining an alternative rate of interest. There is no assurance that any such alternative, successor or replacement reference rate will be similar to, or produce the same value or economic equivalence of, LIBOR. The obligations of the Company and Foreign Borrowers under the Senior Secured Credit Facility are guaranteed by the Company's wholly-owned subsidiary, NCR International, Inc (the Guarantor Subsidiary). The Senior Secured Credit Facility and such guarantee are secured by a first priority lien and security interest in certain equity interests owned by the Company and the Guarantor Subsidiary in certain of their respective domestic and foreign subsidiaries, and a perfected first priority lien and security interest in substantially all of the Company's U.S. assets and the assets of the Guarantor Subsidiary, subject to certain exclusions. These security interests would be released if the Company achieves an “investment grade” rating and will remain released so long as the Company maintains that rating. The Senior Secured Credit Facility includes affirmative and negative covenants that restrict or limit the ability of the Company and its subsidiaries to, among other things, incur indebtedness; create liens on assets; engage in certain fundamental corporate changes or changes to the Company's business activities; make investments; sell or otherwise dispose of assets; engage in sale-leaseback or hedging transactions; repurchase stock, pay dividends or make similar distributions; repay other indebtedness; engage in certain affiliate transactions; or enter into agreements that restrict the Company's ability to create liens, pay dividends or make loan repayments. The Senior Secured Credit Facility also includes a financial covenant that requires the Company to maintain: • a consolidated leverage ratio on the last day of any fiscal quarter, not to exceed (i) in the case of any fiscal quarter ending on or prior to March 31, 2021, (a) the sum of 4.50 and an amount (not to exceed 0.50) to reflect debt used to reduce NCR’s unfunded pension liabilities to (b) 1.00, and (ii) in the case of any fiscal quarter ending after March 31, 2021 and on or prior to March 31, 2023, (a) the sum of 4.25 and an amount (not to exceed 0.50) to reflect debt used to reduce NCR’s unfunded pension liabilities to (b) 1.00; and (iii) in the case of any fiscal quarter ending after March 31, 2023, (a) the sum of 4.00 and an amount (not to exceed 0.50) to reflect debt used to reduce our unfunded pension liabilities to (b) 1.00. The Company has the option to elect to increase the maximum permitted leverage ratio by 0.25 in connection with the consummation of any material acquisition (as defined in the Senior Secured Credit Facility) for four fiscal quarters, but in no event will the maximum permitted leverage ratio, inclusive of all increases, exceed 4.75 to 1.00. At December 31, 2020, the maximum consolidated leverage ratio under the Senior Secured Credit Facility was 4.60 to 1.00. The Senior Secured Credit Facility also includes provisions for events of default, which are customary for similar financings. Upon the occurrence of an event of default, the lenders may, among other things, terminate the loan commitments, accelerate all loans and require cash collateral deposits in respect of outstanding letters of credit. If the Company is unable to pay or repay the amounts due, the lenders could, among other things, proceed against the collateral granted to them to secure such indebtedness. On January 14, 2021, the Company obtained a waiver to the Senior Secured Credit Facility, pursuant to which the lenders under the revolving credit facility agreed to waive certain automatic events of default that had occurred due to an administrative error in the then-current terms of the Senior Secured Credit Facility that did not reflect the intention of the parties. The administrative error related to not treating our Series A Convertible Preferred Stock as indebtedness for purposes of the total leverage ratio calculations in the Company’s compliance certificates and resulted in the Company underpaying certain interest and other amounts with respect to its revolving credit facility. The January 14, 2021 waiver eliminated the automatic events of default that would have existed related to such interest underpayment for the quarter ended December 31, 2019, the quarter ended March 31, 2020, the quarter ended June 30, 2020, the quarter ended September 30, 2020 and the quarter ended December 31, 2020 periods. On January 22, 2021, the Company entered into a third amendment to the Senior Secured Credit Facility, pursuant to which the lenders under the revolving credit facility agreed that, thereafter, our Series A Convertible Preferred Stock would not be treated as indebtedness for purposes of the leverage ratio calculations under the revolving credit facility. On February 4, 2021, the Company entered into a fourth amendment to the Senior Secured Credit Facility. Pursuant to such amendment, upon the closing of the proposed Cardtronics transaction, the maximum permitted total leverage ratio of the Company will be increased initially to 5.50 to 1.00, subject to further modification as set forth in the amendment. In addition, certain technical and other changes to the Senior Secured Credit Facility, including amendments to the definition of "Permitted Acquisition" set forth therein, are now operative. On February 16, 2021, the Company entered into (a) an amended and restated commitment letter (the Commitment Letter), with certain financial institutions party thereto (the Commitment Parties), (b) an incremental term loan A facility agreement (the Incremental Term Agreement) with the Commitment Parties and the Guarantor Subsidiary and (c) an incremental revolving facility agreement (the Incremental Revolving Agreement) with certain financial institutions, the Guarantor Subsidiary and certain of the Foreign Borrowers. Pursuant to and subject to the Commitment Letter and the Incremental Term Agreement, in connection with the proposed Cardtronics transaction, the Commitment Parties have committed to provide the following: (i) a senior secured incremental term loan A facilities under the Senior Secured Credit Facility, in an aggregate principal amount of $1.455 billion, (ii) a senior secured incremental term loan B facility under the Senior Secured Credit Facility, in an aggregate principal amount of $245 million and (iii) a senior secured bridge facility (a portion of which may be unsecured) in an aggregate principal amount of $1.00 billion. The credit facilities will be available to the Company subject to certain conditions precedent, including, among other things, the closing of the proposed Cardtronics transaction. Pursuant to the terms of the Incremental Term Agreement, subject to the satisfaction of certain customary conditions, $200 million of the $1.455 billion term loan A facility will convert into revolving credit commitments under the Senior Secured Credit Facility (the Additional Revolving Commitments) on or about the date that is 3 business days after the closing of the initial funding of the term loan A facilities. The bridge facility will be available to the Company if, and to the extent, the securities referred to in the following paragraph are not issued on or prior to the closing of the proposed Cardtronics transaction. On February 16, 2021, the Company also entered into an amended and restated engagement letter (the Engagement Letter) with certain financial institutions (which may be affiliates of the Commitment Parties) with respect to certain potential securities offerings in connection with the proposed Cardtronics transaction. To the extent that the Company consummates one or more such securities offerings on or prior to the closing of the proposed Cardtronics transaction, the Company expects to correspondingly reduce the commitments with respect to the senior secured bridge facility. Any offer or sale of any such securities will be made pursuant to the applicable offering document for such securities. Pursuant to the Incremental Revolving Agreement, the lenders party thereto have agreed to provide the Company and the Foreign Borrowers with a $1.1 billion revolving credit facility under the Senior Secured Credit Facility to replace the Company’s existing senior credit revolving credit facility, which will be available to the Company upon the satisfaction of certain customary conditions precedent and conditions subsequent, including the closing of the proposed Cardtronics transaction and subject to increase in connection with the conversion of a portion of the term loan A facility into Additional Revolving Commitments. The Company may request, at any time and from time to time, but the lenders are not obligated to fund, the establishment of one or more incremental term loans and/or revolving credit facilities (subject to the agreement of existing lenders or additional financial institutions to provide such term loans and/or revolving credit facilities) with commitments in an aggregate amount not to exceed the greater of (i) $150 million, and (ii) such amount as would not cause the leverage ratio under the Senior Secured Credit Facility, calculated on a pro forma basis including the incremental facility and assuming that it and the revolver are fully drawn, to exceed 3.00 to 1.00, and the proceeds of which can be used for working capital requirements and other general corporate purposes. Senior Unsecured Notes On August 21, 2019, the Company issued $500 million aggregate principal amount of 5.750% senior unsecured notes due in 2027 (the 5.750% Notes). The 5.750% Notes were sold at 100% of the principal amount with a maturity date of September 1, 2027. The 5.750% Notes were issued without registration rights. The Company has the option to redeem the 5.750% Notes, in whole or in part, at any time on or after September 1, 2022, at a redemption price of 102.875%, 101.438%, and 100% during the 12-month periods commencing on September 1, 2022, 2023 and 2024 and thereafter, respectively, plus accrued and unpaid interest to the redemption date. Prior to September 1, 2022, the Company may redeem the 5.750% Notes, in whole or in part, at a redemption price equal to 100% of the principal amount plus a make-whole premium and accrued and unpaid interest to the redemption date. On August 21, 2019, the Company issued $500 million aggregate principal amount of 6.125% senior unsecured notes due in 2029 (the 6.125% Notes). The 6.125% Notes were sold at 100% of the principal amount with a maturity date of September 1, 2029. The 6.125% Notes were issued without registration rights. The Company has the option to redeem the 6.125% Notes, in whole or in part, at any time on or after September 1, 2024, at a redemption price of 103.063%, 102.042%, 101.021% and 100% during the 12-month periods commencing on September 1, 2024, 2025, 2026 and 2027 and thereafter, respectively, plus accrued and unpaid interest to the redemption date. Prior to September 1, 2024, the Company may redeem the 6.125% Notes, in whole or in part, at a redemption price equal to 100% of the principal amount plus a make-whole premium and accrued and unpaid interest to the redemption date. On April 13, 2020, the Company issued $400 million aggregate principal amount of 8.125% senior unsecured notes due in 2025 (the 8.125% Notes). The 8.125% Notes were sold at 100% of the principal amount with a maturity date of April 15, 2025. The Company has the option to redeem the 8.125% Notes, in whole or in part, at any time on or after April 15, 2022, at a redemption price of 104.063%, 102.031%, and 100% during the 12-month periods commencing on April 15, 2022, 2023 and 2024 and thereafter, respectively, plus accrued and unpaid interest to the redemption date. Prior to April 15, 2022, the Company may redeem some or all of the 8.125% Notes by paying a redemption price equal to 100% of the principal amount of the Notes to be redeemed plus the Applicable Premium, as defined in the Indenture, as of, and accrued and unpaid interest to, but excluding, the redemption date (subject to the right of holders of record of the Notes on the relevant record date to receive interest due on the relevant interest payment date). On August 20, 2020, the Company issued $650 million aggregate principal amount of 5.000% senior unsecured notes due in 2028 (the 5.000% Notes) and $450 million aggregate principal amount of 5.250% senior unsecured notes due in 2030 (the 5.250% Notes). Interest is payable on the 5.000% and 5.250% Notes semi-annually in arrears at interest rates of 5.000% and 5.250%, respectively, on April 1 and October 1 of each year beginning April 1, 2021. The 5.000% and 5.250% Notes were sold at 100% of the principal amount and with maturity dates of October 1, 2028 and October 1, 2030, respectively. At any time and from time to time, prior to October 1, 2023, the Company may redeem up to a maximum of 40% of the original aggregate principal amount of either the 5.000% or 5.250% Notes with the proceeds of one or more equity offerings, at a redemption price equal to 105.000%, with respect to the 5.000% Notes, and 105.250%, with respect to the 5.250% Notes, of the principal amount thereof, plus accrued and unpaid interest thereon, if any, to, but not including, the redemption date (subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date); provided that: (i) at least 55% of the original aggregate principal amount of the 5.000% or 5.250% Notes remains outstanding; and (ii) such redemption occurs within 180 days of the completion of such equity offering. Prior to October 1, 2023, with respect to the 5.000% Notes, or October 1, 2025, with respect to the 5.250% Notes, the Company may redeem some or all of such series of Notes by paying a redemption price equal to 100% of the principal amount of the Notes to be redeemed plus the Applicable Premium, as defined in the Indenture, as of, and accrued and unpaid interest to, but excluding, the redemption date (subject to the right of holders of record of the Notes on the relevant record date to receive interest due on the relevant interest payment date). The Company has the option to redeem the 5.000% Notes, in whole or in part, at any time on or after October 1, 2023, at a redemption price of 102.500%, 101.250%, and 100% during the 12-month periods commencing on October 1, 2023, 2024 and 2025 and thereafter, respectively, plus accrued and unpaid interest to the redemption date. The Company has the option to redeem the 5.250% Notes, in whole or in part, at any time on or after October 1, 2025, at a redemption price of 102.625%, 101.750%, 100.875%, and 100% during the 12-month periods commencing on October 1, 2025, 2026, 2027 and 2028 and thereafter, respectively, plus accrued and unpaid interest to the redemption date. On September 19, 2020, the Company used the proceeds from the offering of the 5.000% and 5.250% Notes, together with other cash on hand, to redeem and satisfy and discharge all of its outstanding $600 million aggregate principal amount of 5.000% senior unsecured notes due in 2022 and $700 million aggregate principal amount of 6.375% senior unsecured notes due in 2023. These 5.00% notes were redeemed at 100% plus accrued and unpaid interest. These 6.375% notes were redeemed at a premium of 102.125% plus accrued and unpaid interest. As a part of our debt extinguishment, we recognized a loss of $20 million, which includes the write-off of deferred financing fees of $5 million and a cash redemption premium of $15 million . For the issuance of the 8.125% Notes, the 5.000% Notes and the 5.250% Notes, the Company incurred debt issuance fees of $21 million that have been deferred and will be recognized in interest expense over the term of the indentures. The senior unsecured notes are guaranteed by the Guarantor Subsidiary, which has guaranteed fully and unconditionally the obligations to pay principal and interest for these senior unsecured notes. The terms of the indentures for these notes limit the ability of the Company and certain of its subsidiaries to, among other things, incur additional debt or issue redeemable preferred stock; pay dividends or make certain other restricted payments or investments; incur liens; sell assets; incur restrictions on the ability of the Company's subsidiaries to pay dividends to the Company; enter into affiliate transactions; engage in sa le and leaseback transactions; and consolidate, merge, sell or otherwise dispose of all or substantially all of the Company's or such subsidiaries' assets. These covenants are subject to significant exceptions and qualifications. For example, if these notes are assigned an "investment grade" rating by Moody's or S&P and no default has occurred or is continuing, certain covenants will be terminated. Trade Receivables Securitization Facility In November 2014, the Company established a revolving trade receivables securitization facility (the A/R Facility) with PNC Bank, National Association (PNC) as the administrative agent, and various lenders. In November 2019, the Company amended the A/R Facility to increase the maximum commitment made available under the Facility and extended the maturity date to November 2021. The amendment also included other modifications including the scope of receivables subject to the facility and related eligibility requirements, the adoption of a new benchmark for determining overnight funding rates and the fees and interest payable to the agent and lenders party thereto. The A/R Facility now provides for up to $300 million in funding based on the availability of eligible receivables and other customary factors and conditions, of which none was outstanding as of December 31, 2020. Under the A/R Facility, NCR sells and/or contributes certain of its U.S. trade receivables to a wholly-owned, bankruptcy-remote subsidiary as they are originated, and advances by the lenders to that subsidiary are secured by those trade receivables. The assets of this financing subsidiary are restricted as collateral for the payment of its obligations under the A/R Facility, and its assets and credit are not available to satisfy the debts and obligations owed to the creditors of the Company. The Company includes the assets, liabilities and results of operations of this financing subsidiary in its consolidated financial statements. The financing subsidiary owned $428 million and $603 million of outstanding accounts receivable as of December 31, 2020 and 2019, respectively, and these amounts are included in accounts receivable, net in the Consolidated Balance Sheets. The financing subsidiary will pay annual commitments and other customary fees to the lenders, and advances by a lender under the A/R Facility will accrue interest (i) at a reserve-adjusted LIBOR rate or a base rate equal to the highest of (a) the applicable lender’s prime rate or (b) the federal funds rate plus 0.50%, if the lender is funding as a committed lender under the terms of the A/R Facility, or (ii) based on commercial paper interest rates if the lender is funding as a commercial paper conduit lender. Advances may be prepaid at any time without premium or penalty. The A/R Facility contains various customary affirmative and negative covenants and default and termination provisions, which provide for the acceleration of the advances under the A/R Facility in circumstances including, but not limited to, failure to pay interest or principal when due, breach of representation, warranty or covenant, certain insolvency events or failure to maintain the security interest in the trade receivables, and defaults under other material indebtedness. Debt Maturities Maturities of debt outstanding, in principal amounts, at December 31, 2020 are summarized below: For the years ended December 31 In millions Total 2021 2022 2023 2024 2025 Thereafter Debt maturities $ 3,318 $ 8 $ 9 $ 7 $ 83 $ 408 $ 2,803 Fair Value of Debt The Company utilized Level 2 inputs, as defined in the fair value hierarchy, to measure the fair value of the long-term debt, which, as of December 31, 2020 and 2019 was $3.49 billion and $3.70 billion, respectively. Management's fair value estimates were based on quoted prices for recent trades of NCR’s long-term debt, quoted prices for similar instruments, and inquiries with certain investment communities.

Income Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	6. INCOME TAXES For the years ended December 31, income (loss) from continuing operations before income taxes consisted of the following: In millions 2020 2019 2018 Income (loss) before income taxes United States $ (391) $ (25) $ (262) Foreign 332 366 301 Total income (loss) from continuing operations before income taxes $ (59) $ 341 $ 39 For the years ended December 31, income tax expense (benefit) consisted of the following: In millions 2020 2019 2018 Income tax expense (benefit) Current Federal $ (9) $ 1 $ 18 State — 2 — Foreign 68 78 42 Deferred Federal (108) (19) (2) State (6) — 1 Foreign 2 (335) 14 Total income tax expense (benefit) $ (53) $ (273) $ 73 The following table presents the principal components of the difference between the effective tax rate and the U.S. federal statutory income tax rate for the years ended December 31: In millions 2020 2019 2018 Income tax expense (benefit) at the U.S. federal tax rate of 21% $ (12) $ 72 $ 8 Foreign income tax differential — 5 20 State and local income taxes (net of federal effect) (4) 3 2 Other U.S. permanent book/tax differences 2 3 — Meals and entertainment expense 1 2 2 Executive compensation 10 9 4 Employee share-based payments 3 2 3 Impact of intangible asset transfer — (245) — Gains/losses on distributions/entity liquidations 2 (12) — Foreign derived intangible income deduction — (7) (1) Change in branch tax status — (17) (9) Goodwill impairment — — 30 Research and development tax credits (7) (5) (6) Foreign tax law changes (4) 5 — U.S. valuation allowance (1) (37) (16) 16 U.S tax reform — — 37 Foreign valuation allowance 6 (74) 2 Change in liability for unrecognized tax benefits (1) (12) 4 (23) Prior period adjustments — (1) (11) Other, net (1) (1) (1) Total income tax expense (benefit) $ (53) $ (273) $ 73 (1) Does not include the impact of items included in the U.S. Tax Reform category NCR's tax provisions include a provision for income taxes in certain tax jurisdictions where its subsidiaries are profitable, but reflect only a portion of the tax benefits related to certain foreign subsidiaries' tax losses due to the uncertainty of the ultimate realization of future benefits from these losses. During 2020, our tax rate was impacted by a $48 million benefit from the release of a valuation allowance against U.S. foreign tax credits and the re-establishment of expected foreign tax credit offsets to unrecognized tax benefits. During 2019, the tax rate was impacted by the transfer of certain intangible assets among our wholly-owned subsidiaries, creating a net tax benefit of $264 million. The tax rate was also impacted by foreign valuation allowance releases of $74 million. During 2018, the tax rate was impacted by a $37 million expense relating to the Tax Cuts and Jobs Act of 2017 enacted on December 22, 2017. In the first quarter of 2020, the Company identified and recorded income tax benefits of $5 million related to an error in the calculation of the permanent differences on executive stock compensation and the write-off of income tax payables incorrectly recorded in prior periods. In the fourth quarter of 2020, the Company identified and recorded income tax expense to correct for errors which originated in prior periods totaling $10 million, which included $6 million related to an error in the calculation of the provision for unrecognized tax benefits. The Company corrected for these immaterial errors as out of period adjustments in the periods identified which resulted in a net $5 million out of period adjustment for the year ended December 31, 2020. NCR did not provide additional U.S. income tax or foreign withholding taxes, if any, on approximately $3.4 billion of undistributed earnings of its foreign subsidiaries, given the intention continues to be that those earnings are reinvested indefinitely. The amount of unrecognized deferred tax liability associated with these indefinitely reinvested earnings is approximately $200 million. The unrecognized deferred tax liability is made up of a combination of U.S. and state income taxes and foreign withholding taxes. We regularly review our deferred tax assets for recoverability and establish a valuation allowance if it is more likely than not that some portion or all of the deferred tax asset will not be realized. The determination as to whether a deferred tax asset will be realized is made on a jurisdictional basis and is based on the evaluation of positive and negative evidence. This evidence includes historical taxable income/loss, projected future taxable income, the expected timing of the reversal of existing temporary differences and the implementation of tax planning strategies. Deferred income tax assets and liabilities included in the Consolidated Balance Sheets as of December 31 were as follows: In millions 2020 2019 Deferred income tax assets Employee pensions and other benefits $ 229 $ 243 Other balance sheet reserves and allowances 272 182 Tax loss and credit carryforwards 667 625 Capitalized research and development 44 47 Lease liabilities 91 104 Intangibles 123 127 Property, plant and equipment 11 11 Other 13 9 Total deferred income tax assets 1,450 1,348 Valuation allowance (341) (352) Net deferred income tax assets 1,109 996 Deferred income tax liabilities Right of use assets 90 102 Capitalized software 78 98 Total deferred income tax liabilities 168 200 Total net deferred income tax assets $ 941 $ 796 NCR has previously recorded valuation allowances related to certain deferred tax assets due to the uncertainty of the ultimate realization of the future benefits from those assets. The recorded valuation allowances cover deferred tax assets, primarily tax loss carryforwards and branch basket foreign tax credits, in tax jurisdictions where there is uncertainty as to the ultimate realization of those tax losses and credits. As of December 31, 2020, the Company's net deferred tax assets (without valuation allowances) in the U.S. totaled approximately $469 million. For the three year period ended December 31, 2020, the U.S. had a cumulative net loss from continuing operations before income taxes, as adjusted for permanent differences, which is generally considered a negative indicator of the Company's ability to realize the benefits of those assets. However, the Company evaluated the realizability of the U.S. net deferred tax assets by weighing positive and negative evidence, including our history of U.S. pre-tax income adjusted for permanent differences, the impact of the COVID-19 pandemic on our U.S. results in 2020 and in the near-term, projected U.S. taxable income, and the length of time over which the Company's deferred tax assets relating to net operating losses, general basket foreign tax credits, interest limitation carryforward, research and development credits and a variety of temporary differences may be realized. A specific focus of the evaluation was the realizability of the Company's general basket foreign tax credit carryforwards, which expire on or before December 31, 2025. Through this assessment, realization of the related benefits was determined to be more likely than not. If the Company is unable to generate sufficient future U.S. taxable income of the proper source in the time period within which the temporary differences underlying our deferred tax assets become deductible, or before the expiration of our loss and credit carryforwards, additional valuation allowances could be required in the future. As of December 31, 2020, NCR had U.S. federal, U.S. state (tax effected), and foreign tax attribute carryforwards of approximately $1.6 billion. The net operating loss carryforwards that are subject to expiration will expire in the years 2021 through 2039. This includes U.S. tax credit carryforwards of $279 million, which expire in the years 2021 through 2040. As a result of stock ownership changes our U.S. tax attributes could be subject to limitations under Section 382 of the U.S. Internal Revenue Code of 1986, as amended, if further material stock ownership changes occur. The aggregate changes in the balance of our gross unrecognized tax benefits were as follows for the years ended December 31: In millions 2020 2019 2018 Gross unrecognized tax benefits - January 1 $ 121 $ 110 $ 196 Increases related to tax positions from prior years 15 7 9 Decreases related to tax positions from prior years (6) (4) (50) Increases related to tax provisions taken during the current year 6 14 9 Settlements with tax authorities (23) (5) (45) Lapses of statutes of limitation (10) (1) (9) Total gross unrecognized tax benefits - December 31 $ 103 $ 121 $ 110 Of the total amount of gross unrecognized tax benefits as of December 31, 2020, $61 million would affect NCR’s effective tax rate if realized. The Company’s liability arising from uncertain tax positions is recorded in income tax accruals and other current liabilities in the Consolidated Balance Sheets. We recognized interest and penalties associated with uncertain tax positions as part of the provision for income taxes in our Consolidated Statements of Operations of $5 million of benefit, $2 million of expense, and $9 million of benefit for the years ended December 31, 2020, 2019, and 2018, respectively. The gross amount of interest and penalties accrued as of December 31, 2020 and 2019 was $30 million and $35 million, respectively. In the U.S., NCR files consolidated federal and state income tax returns where statutes of limitations generally range from three to five years. U.S. federal tax years remain open from 2017 forward. Years beginning on or after 2001 are still open to examination by certain foreign taxing authorities, including India, Egypt, and other major taxing jurisdictions.

Employee Stock Compensation Pla

Employee Stock Compensation Plans	12 Months Ended
Employee Stock Compensation Plans	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Employee Stock Compensation Plans	7. STOCK COMPENSATION PLANS The Company recognizes all share-based payments as compensation expense in its financial statements based on their fair value. As of December 31, 2020, the Company’s stock-based compensation consisted of restricted stock units, employee stock purchase plan and stock options. The Company recorded stock-based compensation expense for the years ended December 31 as follows: In millions 2020 2019 2018 Restricted stock units $ 78 $ 94 $ 65 Employee stock purchase plan 6 4 4 Stock options 24 9 4 Stock-based compensation expense 108 107 73 Tax benefit (13) (12) (10) Total stock-based compensation (net of tax) $ 95 $ 95 $ 63 Approximately 30 million shares remain authorized to be issued under the 2017 Stock Incentive Plan (SIP). Details of the Company's stock-based compensation plans are discussed below. Restricted Stock Units The SIP provides for the grant of several different forms of stock-based compensation, including restricted stock units. Restricted stock units can have service-based and/or performance-based vesting with performance goals being established by the Compensation and Human Resource Committee of the Company’s Board of Directors. Any grant of restricted stock units is generally subject to a vesting period of 12 months to 48 months, to the extent permitted by the SIP. Performance-based grants conditionally vest upon achievement of future performance goals based on performance criteria such as the Company’s achievement of specific return on capital and/or other financial metrics (as defined in the SIP) during the performance period. Performance-based grants must be earned, based on performance, before the actual number of shares to be awarded is known. The Compensation and Human Resource Committee considers the likelihood of meeting the performance criteria based upon estimates and other relevant data, and certifies performance based on its analysis of achievement against the performance criteria. A recipient of restricted stock units does not have the rights of a stockholder and is subject to restrictions on transferability and risk of forfeiture. Other terms and conditions applicable to any award of restricted stock units will be determined by the Compensation and Human Resource Committee and set forth in the agreement relating to that award. The following table reports restricted stock unit activity during the year ended December 31, 2020: Shares in thousands Number of Units Weighted Average Grant-Date Fair Value per Unit Unvested shares as of January 1 4,456 $ 28.18 Shares granted 5,391 $ 26.50 Shares vested (2,642) $ 28.03 Shares forfeited (547) $ 28.57 Unvested shares as of December 31 6,658 $ 26.84 Stock-based compensation expense is recognized in the financial statements based upon fair value. The total fair value of units vested and distributed in the form of NCR common stock was $77 million in 2020, $86 million in 2019, and $90 million in 2018. As of December 31, 2020, there was $88 million of unrecognized compensation cost related to unvested restricted stock unit grants. The unrecognized compensation cost is expected to be recognized over a remaining weighted-average period of 0.9 years. The weighted average grant date fair value for restricted stock unit awards granted in 2019 and 2018 was $24.31 and $26.25, respectively. The following table represents the composition of restricted stock unit grants in 2020: Shares in thousands Number of Units Weighted Average Grant-Date Fair Value Service-based units 825 $ 30.43 Performance-based units 4,566 $ 25.79 Total restricted stock units 5,391 $ 26.50 On July 1, 2020, the Company granted market-based restricted stock units with 50% of the award vesting on January 1, 2022 and 50% of the award vesting on January 1, 2023. The number of awards that vest are subject to the performance of the Company's stock price from the date of grant to January 1, 2022. The fair value was determined to be $21.74 based on using a Monte-Carlo simulation model and will be recognized over the requisite service period. The table below details the assumptions used in determining the fair value of the market-based restricted stock units. For the twelve months ended December 31, 2020 Dividend yield — % Risk-free interest rate 0.16 % Expected volatility 53.64 % Expected volatility for the market-based restricted stock units is calculated as the historical volatility of the Company’s stock over a period of three years, as management believes this is the best representation of prospective trends. The risk-free interest rate was determined based on a blend of the one Stock Options The SIP also provides for the grant of stock options to purchase shares of NCR common stock. The Compensation and Human Resource Committee has discretion to determine the material terms and conditions of option awards under the SIP, provided that (i) the exercise price must be no less than the fair market value of NCR common stock (defined as the closing price) on the date of grant, (ii) the term must be no longer than ten years, and (iii) in no event shall the normal vesting schedule provide for vesting in less than one year. Other terms and conditions of an award of stock options will be determined by the Compensation and Human Resource Committee as set forth in the agreement relating to that award. The Compensation and Human Resource Committee has authority to administer the SIP, except that the Committee on Directors and Governance of the Company’s Board of Directors will administer the SIP with respect to non-employee members of the Board of Directors. New shares of the Company’s common stock are issued as a result of stock option exercises. During the year ended December 31, 2020, stock options granted were premium-priced stock options with an exercise price equal to either 110% or 115% of the closing stock price on the date of the grant. The weighted average exercise price of the stock options granted in the year ended December 31, 2020 was $36.26. The weighted average fair value of the option grants was $7.64 for the year ended December 31, 2020 based on using a Monte-Carlo simulation model and will be recognized over the requisite service period. These option grants have a 7 year contractual term that vest at the end of 36 months. During the year ended December 31, 2019, stock compensation expense for stock options was recognized in the financial statements based upon grant date fair value and was computed using the Black-Scholes option-pricing model. The weighted average fair value of option grants were estimated based on the below weighted average assumptions, which was $8.07. The stock options were granted with a 7 year contractual term that will vest over 48 months. The table below details the assumptions used in determining the fair value of the option grants: For the year ended December 31, 2020 For the year ended December 31, 2019 Dividend yield — — Risk-free interest rate 1.34 % 2.50 % Expected volatility 34.63 % 34.79 % Expected holding period - years 3.7 3.90 Expected volatility is calculated as the historical volatility of the Company’s stock over a period equal to the expected term of the options, as management believes this is the best representation of prospective trends. The Company uses historical data to estimate option exercise and employee terminations within the valuation model. The expected holding period represents the period of time that options are expected to be outstanding. For the options granted during the year ended December 31, 2020, the seven-year U.S. Treasury yield curve was used to determine the risk-free interest rate. For options granted during the year ended December 31, 2019, the risk-free interest rate was determined based on a blend of the three The following table summarizes the Company’s stock option activity for the year ended December 31, 2020: Shares in thousands Shares Under Option Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value Outstanding as of January 1 4,559 $ 28.08 Granted 5,871 $ 36.26 Exercised (105) $ 21.82 Forfeited or expired (527) $ 32.31 Outstanding as of December 31 9,798 $ 32.82 5.50 $ 50.01 Fully vested and expected to vest as of December 31 7,978 $ 33.78 5.77 $ 33.73 Exercisable as of December 31 1,820 $ 28.62 4.35 $ 16.28 As of December 31, 2020, the total unrecognized compensation cost of $43 million related to unvested stock option grants is expected to be recognized over a weighted average period of approximately 1.1 years.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2020
Employee Benefit Plans [Abstract]
Employee Benefit Plans	8. EMPLOYEE BENEFIT PLANS Pension, Postretirement and Postemployment Plans NCR sponsors defined benefit pension plans. NCR’s U.S. pension plan no longer offers additional benefits and is closed to new participants. Internationally, the defined benefit plans are based primarily upon compensation and years of service. Certain international plans also no longer offer additional benefits and are closed to new participants. NCR’s funding policy is to contribute annually no less than the minimum required by applicable laws and regulations. Assets of NCR’s defined benefit plans are primarily invested in corporate and government debt securities, common and commingled trusts, publicly traded common stocks, real estate investments, and cash or cash equivalents. NCR recognizes the funded status of each applicable plan on the Consolidated Balance Sheets. Each overfunded plan is recognized as an asset and each underfunded plan is recognized as a liability. For pension plans, changes in the fair value of plan assets and net actuarial gains or losses are recognized upon remeasurement, which is at least annually in the fourth quarter of each year. For postretirement and postemployment plans, changes to the funded status are recognized as a component of other comprehensive loss in stockholders' equity. NCR sponsors a U.S. postretirement benefit plan that no longer offers benefits to U.S. participants who had not reached a certain age and years of service with NCR. The plan provides medical care benefits to retirees and their eligible dependents. Non-U.S. employees are typically covered under government-sponsored programs, and NCR generally does not provide postretirement benefits other than pensions to non-U.S. retirees. NCR generally funds these benefits on a pay-as-you-go basis. NCR offers various postemployment benefits to involuntarily terminated and certain inactive employees after employment but before retirement. These benefits are paid in accordance with NCR’s established postemployment benefit practices and policies. Postemployment benefits include mainly severance as well as continuation of healthcare benefits and life insurance coverage while on disability. NCR provides appropriate accruals for these postemployment benefits. These postemployment benefits are funded on a pay-as-you-go basis. Pension Plans Reconciliation of the beginning and ending balances of the benefit obligations for NCR's pension plans are as follows: U.S. Pension Benefits International Pension Benefits Total Pension Benefits In millions 2020 2019 2020 2019 2020 2019 Change in benefit obligation Benefit obligation as of January 1 $ 1,954 $ 1,763 $ 1,174 $ 1,092 $ 3,128 $ 2,855 Net service cost — — 6 7 6 7 Interest cost 51 66 13 19 64 85 Amendment — — 5 — 5 — Actuarial (gain) loss 168 229 86 112 254 341 Benefits paid (106) (104) (111) (76) (217) (180) Plan participant contributions — — 1 1 1 1 Currency translation adjustments — — 72 19 72 19 Benefit obligation as of December 31 $ 2,067 $ 1,954 $ 1,246 $ 1,174 $ 3,313 $ 3,128 Accumulated benefit obligation as of December 31 $ 2,067 $ 1,954 $ 1,235 $ 1,163 $ 3,302 $ 3,117 A reconciliation of the beginning and ending balances of the fair value of the plan assets of NCR's pension plans are as follows: U.S. Pension Benefits International Pension Benefits Total Pension Benefits In millions 2020 2019 2020 2019 2020 2019 Change in plan assets Fair value of plan assets as of January 1 $ 1,377 $ 1,269 $ 1,058 $ 953 $ 2,435 $ 2,222 Actual return on plan assets 187 212 99 128 286 340 Company contributions 70 — 19 23 89 23 Benefits paid (106) (104) (111) (76) (217) (180) Currency translation adjustments — — 53 29 53 29 Plan participant contributions — — — 1 — 1 Fair value of plan assets as of December 31 $ 1,528 $ 1,377 $ 1,118 $ 1,058 $ 2,646 $ 2,435 The following table presents the funded status and the reconciliation of the funded status to amounts recognized in the Consolidated Balance Sheets and in accumulated other comprehensive loss as of December 31: U.S. Pension Benefits International Pension Benefits Total Pension Benefits In millions 2020 2019 2020 2019 2020 2019 Funded Status $ (539) $ (577) $ (128) $ (116) $ (667) $ (693) Amounts recognized in the Consolidated Balance Sheets Noncurrent assets $ — $ — $ 199 $ 178 $ 199 $ 178 Current liabilities — — (15) (13) (15) (13) Noncurrent liabilities (539) (577) (312) (281) (851) (858) Net amounts recognized $ (539) $ (577) $ (128) $ (116) $ (667) $ (693) Amounts recognized in accumulated other comprehensive loss Prior service cost — — 24 20 24 20 Total $ — $ — $ 24 $ 20 $ 24 $ 20 For pension plans with accumulated benefit obligations in excess of plan assets, the projected benefit obligation, accumulated benefit obligation and fair value of assets were $2,366 million, $2,363 million, and $1,531 million, respectively, as of December 31, 2020, and $2,222 million, $2,217 million and $1,380 million, respectively, as of December 31, 2019. The net periodic benefit (income) cost of the pension plans for the years ended December 31 was as follows: In millions U.S. Pension Benefits International Total Pension Benefits 2020 2019 2018 2020 2019 2018 2020 2019 2018 Net service cost $ — $ — $ — $ 6 $ 7 $ 7 $ 6 $ 7 $ 7 Interest cost 51 66 61 13 19 20 64 85 81 Expected return on plan assets (36) (43) (43) (28) (31) (32) (64) (74) (75) Amortization of prior service cost — — — 1 1 1 1 1 1 Actuarial (gain) loss 18 60 (29) 16 15 (16) 34 75 (45) Net periodic benefit (income) cost $ 33 $ 83 $ (11) $ 8 $ 11 $ (20) $ 41 $ 94 $ (31) Actuarial losses in 2020 and 2019 were primarily due to a decrease in the discount rate. Actuarial gains in 2018 were due to an increase in the discount rate as well as a favorable impact from a mortality update in the United Kingdom. The weighted average rates and assumptions used to determine benefit obligations as of December 31 were as follows: U.S. Pension Benefits International Pension Benefits Total Pension Benefits 2020 2019 2020 2019 2020 2019 Discount rate 2.4 % 3.1 % 0.9 % 1.4 % 1.8 % 2.5 % Rate of compensation increase N/A N/A 0.9 % 0.9 % 0.9 % 0.9 % The weighted average rates and assumptions used to determine net periodic benefit (income) cost for the years ended December 31 were as follows: U.S. Pension Benefits International Total Pension Benefits 2020 2019 2018 2020 2019 2018 2020 2019 2018 Discount rate - Service Cost N/A N/A N/A 0.7 % 1.6 % 1.4 % 0.7 % 1.6 % 1.4 % Discount rate - Interest Cost 2.7 % 3.8 % 3.2 % 1.2 % 1.8 % 1.6 % 2.1 % 3.1 % 2.6 % Expected return on plan assets 2.8 % 3.6 % 3.1 % 2.6 % 3.2 % 3.0 % 2.7 % 3.4 % 3.1 % Rate of compensation increase N/A N/A N/A 0.9 % 1.0 % 0.9 % 0.9 % 1.0 % 0.9 % The weighted-average cash balance interest crediting rate for the Company's cash balance defined benefit plans was 1.1% and 1.2% for the years ended December 31, 2020 and 2019, respectively. The discount rate used to determine U.S. benefit obligations as of December 31, 2020 was derived by matching the plans’ expected future cash flows to the corresponding yields from the Aon Hewitt AA Bond Universe Curve. This yield curve has been constructed to represent the available yields on high-quality, fixed-income investments across a broad range of future maturities. International discount rates were determined by examining interest rate levels and trends within each country, particularly yields on high-quality, long-term corporate bonds, relative to our future expected cash flows. NCR employs a building block approach as its primary approach in determining the long-term expected rate of return assumptions for plan assets. Historical market returns are studied and long-term relationships between equities and fixed income are preserved consistent with the widely accepted capital market principle that assets with higher volatilities generate higher returns over the long run. Current market factors, such as inflation and interest rates are evaluated before long-term capital market assumptions are determined. The expected long-term portfolio return is established for each plan via a building block approach with proper rebalancing consideration. The result is then adjusted to reflect additional expected return from active management net of plan expenses. Historical plan returns, the expectations of other capital market participants, and peer data may be used to review and assess the results for reasonableness and appropriateness. Plan Assets The weighted average asset allocations as of December 31, 2020 and 2019 by asset category are as follows: U.S. Pension Fund International Pension Fund Actual Allocation of Plan Assets as of December 31 Target Asset Allocation Actual Allocation of Plan Assets as of December 31 Target Asset Allocation 2020 2019 2020 2019 Equity securities — % — % 0 - 0% 19 % 23 % 12 - 27% Debt securities 94 % 99 % 95 - 100% 58 % 56 % 54 - 72% Real estate — % — % 0 - 2% 14 % 12 % 6 - 14% Other 6 % 1 % 0 - 3% 9 % 9 % 4 - 9% Total 100 % 100 % 100 % 100 % The fair value of plan assets as of December 31, 2020 and 2019 by asset category is as follows: U.S. International In millions Notes Fair Value as of December 31, 2020 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Not Subject to Leveling Fair Value as of December 31, 2020 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Not Subject to Leveling Assets Equity securities: Common stock 1 $ — $ — $ — $ — $ — $ 57 $ 57 $ — $ — $ — Fixed income securities: Government securities 2 221 — 221 — — — — — — — Corporate debt 3 1,011 — 1,011 — — 104 — 104 — — Other types of investments: Money market funds 4 5 — — — 5 10 — — — 10 Common and commingled trusts - Equities 4 — — — — — 149 — — — 149 Common and commingled trusts - Bonds 4 167 — — — 167 515 — — — 515 Common and commingled trusts - Short Term Investments 4 94 — — — 94 40 — — — 40 Common and commingled trusts - Balanced 4 — — — — — 90 — — — 90 Partnership/joint venture interests - Real estate 5 — — — — — — — — — — Partnership/joint venture interests - Other 5 2 — — — 2 — — — — — Mutual funds 4 28 28 — — — — — — — — Insurance products 4 — — — — — 1 — 1 — — Real estate and other 5 — — — — — 152 — — 152 — Total $ 1,528 $ 28 $ 1,232 $ — $ 268 $ 1,118 $ 57 $ 105 $ 152 $ 804 U.S. International In millions Notes Fair Value as of December 31, 2019 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Not Subject to Leveling Fair Value as of December 31, 2019 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs Significant Unobservable Inputs Not Subject to Leveling Assets Equity securities: Common stock 1 $ — $ — $ — $ — $ — $ 53 $ 53 $ — $ — $ — Fixed income securities: Government securities 2 209 — 209 — — — — — — — Corporate debt 3 934 — 934 — — 103 — 103 — — Other types of investments: Money market funds 4 12 — — — 12 10 — — — 10 Common and commingled trusts - Equities 4 — — — — — 184 — — — 184 Common and commingled trusts - Bonds 4 157 — — — 157 470 — — — 470 Common and commingled trusts - Short Term Investments 4 19 — — — 19 21 — — — 21 Common and commingled trusts - Balanced 4 — — — — — 85 — — — 85 Partnership/joint venture interests - Real estate 5 1 — — — 1 — — — — — Partnership/joint venture interests - Other 5 2 — — — 2 — — — — — Mutual funds 4 43 43 — — — — — — — — Insurance products 4 — — — — — 1 — 1 — — Real estate and other 5 — — — — — 131 — — 131 — Total $ 1,377 $ 43 $ 1,143 $ — $ 191 $ 1,058 $ 53 $ 104 $ 131 $ 770 Notes: 1. Common stocks are valued based on quoted market prices at the closing price as reported on the active market on which the individual securities are traded. 2. Government securities are valued based on yields currently available on comparable securities of issuers with similar credit ratings. When quoted prices are not available for identical or similar securities, the security is valued under a discounted cash flows approach that maximizes observable inputs, such as current yields on similar instruments but includes adjustments for certain risks that may not be observable, such as credit and liquidity risks. 3. Corporate debt is valued primarily based on observable market quotations for similar bonds at the closing price reported on the active market on which the individual securities are traded. When such quoted prices are not available, the bonds are valued using a discounted cash flows approach using current yields on similar instruments of issuers with similar credit ratings. 4. Common/collective trusts and registered investment companies (RICs) such as mutual funds are valued using a Net Asset Value (NAV) provided by the manager of each fund. The NAV is based on the underlying net assets owned by the fund, divided by the number of shares or units outstanding. The fair value of the underlying securities within the fund, which are generally traded on an active market, are valued at the closing price reported on the active market on which those individual securities are traded. For investments not traded on an active market, or for which a quoted price is not publicly available, a variety of unobservable valuation methodologies, including discounted cash flow, market multiple and cost valuation approaches, are employed by the fund manager or independent third party to value investments. 5. Partnership/joint ventures are valued based on the fair value of the underlying securities within the fund, which include investments both traded on an active market and not traded on an active market. For those investments that are traded on an active market, the values are based on the closing price reported on the active market on which those individual securities are traded. For investments not traded on an active market, or for which a quoted price is not publicly available, a variety of unobservable valuation methodologies, including discounted cash flow, market multiples and cost valuation approaches, are employed by the fund manager to value investments. The following table presents the reconciliation of the beginning and ending balances of those plan assets classified within Level 3 of the valuation hierarchy. When the determination is made to classify the plan assets within Level 3, the determination is based upon the significance of the unobservable inputs to the overall fair value measurement. In millions International Pension Plans Balance, December 31, 2018 $ 129 Realized and unrealized gains and losses, net 2 Purchases, sales and settlements, net — Transfers, net — Balance, December 31, 2019 $ 131 Realized and unrealized gains and losses, net 21 Purchases, sales and settlements, net — Transfers, net — Balance, December 31, 2020 $ 152 Investment Strategy NCR has historically employed a total return investment approach, whereby a mix of fixed-income, equities and real estate investments are used to maximize the long-term return of plan assets subject to a prudent level of risk. The risk tolerance is established for each plan through a careful consideration of plan liabilities, plan funded status and corporate financial condition. To reduce volatility in the value of assets held by the U.S. pension plan, the asset allocation has been and continues to be a portfolio comprising a substantial portion of fixed income assets as of December 31, 2020. However, as we review the plan's funding requirements, we may, in consultation with an independent advisor on asset allocation strategy investment policy and objectives, choose to rebalance the asset allocation to capture additional returns to reduce future cash funding requirements. The investment portfolios contain primarily fixed-income investments, which are diversified across U.S. and non-U.S. issuers, type of fixed-income security (i.e., government bonds, corporate bonds, mortgage-backed securities) and credit quality. The investment portfolios also contain a blend of equity investments, which are diversified across U.S. and non-U.S. stocks, small and large capitalization stocks, and growth and value stocks, primarily of non-U.S. issuers. Where applicable, real estate investments are made through real estate securities, partnership interests or direct investment and are diversified by property type and location. Other assets, such as cash or private equity are used judiciously to improve portfolio diversification and enhance risk-adjusted portfolio returns. Derivatives may be used to adjust market exposures in an efficient and timely manner. Due to the timing of security purchases and sales, cash held by fund managers is classified in the same asset category as the related investment. Rebalancing algorithms are applied to keep the asset mix of the plans from deviating excessively from their targets. Investment risk is measured and monitored on an ongoing basis through regular performance reporting, investment manager reviews, actuarial liability measurements and periodic investment strategy reviews. Postretirement Plans Reconciliation of the beginning and ending balances of the benefit obligation for NCR's U.S. postretirement plan is as follows: Postretirement Benefits In millions 2020 2019 Change in benefit obligation Benefit obligation as of January 1 $ 17 $ 18 Interest cost — 1 Actuarial gain — — Plan participant contributions — — Benefits paid (1) (2) Benefit obligation as of December 31 $ 16 $ 17 The following table presents the funded status and the reconciliation of the funded status to amounts recognized in the Consolidated Balance Sheets and in accumulated other comprehensive loss as of December 31: Postretirement Benefits In millions 2020 2019 Benefit obligation $ (16) $ (17) Amounts recognized in the Consolidated Balance Sheets Current liabilities $ (2) $ (2) Noncurrent liabilities (14) (15) Net amounts recognized $ (16) $ (17) Amounts recognized in accumulated other comprehensive loss Net actuarial loss $ 6 $ 7 Prior service benefit — (3) Total $ 6 $ 4 The net periodic benefit income of the postretirement plan for the years ended December 31 was: In millions Postretirement Benefits 2020 2019 2018 Interest cost $ — $ 1 $ — Amortization of: Prior service benefit (3) (5) (5) Actuarial loss 1 — 1 Net periodic benefit income $ (2) $ (4) $ (4) The assumptions utilized in accounting for postretirement benefit obligations as of December 31 and for postretirement benefit income for the years ended December 31 were: Postretirement Benefit Obligations Postretirement Benefit Costs 2020 2019 2018 2020 2019 2018 Discount rate 1.4 % 2.5 % 3.7 % 2.5 % 3.7 % 3.1 % Assumed healthcare cost trend rates as of December 31 were: 2020 2019 Pre-65 Coverage Post-65 Coverage Pre-65 Coverage Post-65 Coverage Healthcare cost trend rate assumed for next year 6.5 % 5.8 % 6.7 % 5.9 % Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) 5.0 % 5.0 % 5.0 % 5.0 % Year that the rate reaches the ultimate rate 2027 2027 2027 2027 Postemployment Benefits Reconciliation of the beginning and ending balances of the benefit obligation for NCR's postemployment plan was: Postemployment Benefits In millions 2020 2019 Change in benefit obligation Benefit obligation as of January 1 $ 126 $ 139 Service cost 42 31 Interest cost 3 3 Amendments (4) — Benefits paid (39) (35) Foreign currency exchange 3 (1) Actuarial (gain) loss 7 (11) Benefit obligation as of December 31 $ 138 $ 126 The following table presents the funded status and the reconciliation of the unfunded status to amounts recognized in the Consolidated Balance Sheets and in accumulated other comprehensive loss at December 31: Postemployment Benefits In millions 2020 2019 Benefit obligation $ (138) $ (126) Amounts recognized in the Consolidated Balance Sheets Current liabilities $ (32) $ (30) Noncurrent liabilities (106) (96) Net amounts recognized $ (138) $ (126) Amounts recognized in accumulated other comprehensive loss Net actuarial gain $ (23) $ (38) Prior service benefit (8) (6) Total $ (31) $ (44) The net periodic benefit cost of the postemployment plan for the years ended December 31 was: In millions Postemployment Benefits 2020 2019 2018 Service cost $ 42 $ 31 $ 43 Interest cost 3 3 3 Amortization of: Prior service benefit (2) (2) (5) Actuarial gain (4) (3) (1) Net benefit cost $ 39 $ 29 $ 40 The weighted average assumptions utilized in accounting for postemployment benefit obligations as of December 31 and for postemployment benefit costs for the years ended December 31 were: Postemployment Benefit Obligations Postemployment Benefit Costs 2020 2019 2020 2019 2018 Discount rate 1.4 % 1.8 % 1.8 % 2.4 % 2.3 % Salary increase rate 2.0 % 1.8 % 1.8 % 1.9 % 1.9 % Involuntary turnover rate 3.8 % 3.8 % 3.8 % 4.3 % 4.8 % Cash Flows Related to Employee Benefit Plans Cash Contributions NCR does not plan to contribute to the U.S. qualified pension plan in 2021, and plans to contribute approximately $25 million to the international pension plans in 2021. The Company also plans to make contributions of approximately $2 million to the U.S. postretirement plan and approximately $39 million to the postemployment plan in 2021. Estimated Future Benefit Payments NCR expects to make the following benefit payments reflecting past and future service from its pension, postretirement and postemployment plans: In millions U.S. Pension Benefits International Pension Benefits Total Pension Benefits Postretirement Benefits Postemployment Benefits Year 2021 $ 109 $ 53 $ 162 $ 2 $ 39 2022 $ 110 $ 50 $ 160 $ 1 $ 17 2023 $ 112 $ 49 $ 161 $ 1 $ 16 2024 $ 114 $ 51 $ 165 $ 1 $ 15 2025 $ 115 $ 50 $ 165 $ 1 $ 14 2026-2030 $ 571 $ 242 $ 813 $ 3 $ 62 Savings Plans U.S. employees and many international employees participate in defined contribution savings plans. These plans generally provide either a specified percent of pay or a matching contribution on participating employees’ voluntary elections. NCR’s matching contributions typically are subject to a maximum percentage or level of compensation. Employee contributions can be made pre-tax, after-tax or a combination thereof. The expense under the U.S. plan was approximately $32 million in 2020, $27 million in 2019, and $27 million in 2018. The expense under international and subsidiary savings plans was $25 million in 2020, $25 million in 2019, and $24 million in 2018. Amounts to be Recognized The amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost (income) during 2021 are as follows: In millions U.S. International Pension Benefits Total Postretirement Benefits Postemployment Benefits Prior service cost (benefit) $ — $ 1 $ 1 $ 1 $ (2) Actuarial loss (gain) $ — $ — $ — $ — $ (2)

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies (Notes)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	9. COMMITMENTS AND CONTINGENCIES In the normal course of business, NCR is subject to various proceedings, lawsuits, claims and other matters, including, for example, those that relate to the environment and health and safety, labor and employment, employee benefits, import/export compliance, intellectual property, data privacy and security, product liability, commercial disputes and regulatory compliance, among others. Additionally, NCR is subject to diverse and complex laws and regulations, including those relating to corporate governance, public disclosure and reporting, environmental safety and the discharge of materials into the environment, product safety, import and export compliance, data privacy and security, antitrust and competition, government contracting, anti-corruption, and labor and human resources, which are rapidly changing and subject to many possible changes in the future. Compliance with these laws and regulations, including changes in accounting standards, taxation requirements, and federal securities laws among others, may create a substantial burden on, and substantially increase costs to NCR or could have an impact on NCR's future operating results. The Company has reflected all liabilities when a loss is considered probable and reasonably estimable in the Consolidated Financial Statements. We do not believe there is a reasonable possibility that losses exceeding amounts already recognized have been incurred, but there can be no assurances that the amounts required to satisfy alleged liabilities from such matters will not impact future operating results. Other than as stated below, the Company does not currently expect to incur material capital expenditures related to such matters. However, there can be no assurances that the actual amounts required to satisfy alleged liabilities from various lawsuits, claims, legal proceedings and other matters, including, but not limited to the Fox River and Kalamazoo River environmental matters and other matters discussed below, and to comply with applicable laws and regulations, will not exceed the amounts reflected in NCR’s Consolidated Financial Statements or will not have a material adverse effect on its consolidated results of operations, capital expenditures, competitive position, financial condition or cash flows. Nashville Tornado On March 3, 2020, one of our Global Fulfillment Centers, operated with a third-party logistics partner in Mount Juliet, Tennessee, was severely impacted by tornadoes in the greater Nashville area. We maintain substantial property damage insurance coverage for this Global Fulfillment Center and reached a final settlement with our insurance carrier and claims adjusters as of December 31, 2020. The Company determined approximately $118 million of the inventory to be either a total loss or excess and obsolete as of December 31, 2020 and as such, was written-off with an offsetting insurance receivable recorded, which was included within other current assets in the Consolidated Balance Sheet with no net impact on cost of sales. As of December 31, 2020, we received a total of $102 million as advances from the insurance carrier with $16 million remaining as an insurance receivable. Additionally, our insurance policy also provides for business interruption coverage, including lost profits, and reimbursement for other expenses and costs that have been incurred relating to the damages and losses suffered. As of December 31, 2020, the Company has incurred $26 million of other expenses, mainly related to expedite freight, professional services and contractor charges. These costs will be fully recovered based on the final settlement with $8 million cash received during 2020 and the remaining $18 million recorded as an insurance receivable as of December 31, 2020. Final cash payment was received in early January 2021. Boston Consulting Group On November 6, 2019, Boston Consulting Group, Inc., a former consultant for the Company, commenced a lawsuit against the Company in the United States District Court for the District of New York. The Complaint in the matter alleges the Company breached two consulting agreements and sought in excess of $80 million and other compensatory damages and equitable relief. The Company believed the allegations of money owed were grossly overstated, and the Company vigorously defended this lawsuit. In December 2020, the parties engaged in mediation directed to settlement of this matter, and in January 2021, the parties agreed to a final settlement. Environmental Matters NCR's facilities and operations are subject to a wide range of environmental protection laws, and NCR has investigatory and remedial activities underway at a number of facilities that it currently owns or operates, or formerly owned or operated, to comply, or to determine compliance, with such laws. Also, NCR has been identified, either by a government agency or by a private party seeking contribution to site clean-up costs, as a potentially responsible party (PRP) at a number of sites pursuant to various state and federal laws, including the Federal Water Pollution Control Act, the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) and comparable state statutes. Other than the Fox River matter, the Kalamazoo River matter and the Ebina matter discussed below, we currently do not anticipate material expenses and liabilities from these environmental matters. Fox River NCR is one of eight entities that were formally notified by governmental and other entities, such as local Native American tribes, that they are PRPs for environmental claims (under CERCLA and other statutes) arising out of the presence of polychlorinated biphenyls (PCBs) in sediments in the lower Fox River and in the Bay of Green Bay in Wisconsin. The other Fox River PRPs that received notices include Appleton Papers Inc. (API; now known as Appvion, Inc.), P.H. Glatfelter Company ("Glatfelter"), Georgia-Pacific Consumer Products LP (GP, successor to Fort James Operating Company), and others. NCR was identified as a PRP because of alleged PCB discharges from two carbonless copy paper manufacturing facilities it previously owned, which were located along the Fox River. NCR sold its facilities in 1978 to API. The parties have also contended that NCR is responsible for PCB discharges from paper mills owned by other companies because NCR carbonless copy paper "broke" was allegedly purchased by those other mills as a raw material. The United States Environmental Protection Agency (USEPA) and Wisconsin Department of Natural Resources (together, the Governments) developed clean-up plans for the upper and lower parts of the Fox River and for portions of the Bay of Green Bay. On November 13, 2007, the Governments issued a unilateral administrative order (the 2007 Order) under CERCLA to the eight original PRPs, requiring them to perform remedial work under the Governments’ clean-up plan for the lower parts of the river (operable units 2 through 5). In April 2009, NCR and API formed a limited liability company (the LLC), which entered into an agreement with an environmental remediation contractor to perform the work at the Fox River site. In-water dredging and remediation under the clean-up plan commenced shortly thereafter. NCR and API, along with B.A.T Industries p.l.c. (BAT), share among themselves a portion of the cost of the Fox River clean-up and natural resource damages (NRD) based upon a 1998 agreement (the Cost Sharing Agreement), a 2005 arbitration award (subsequently confirmed as a judgment), and a September 30, 2014 Funding Agreement (the Funding Agreement). The Cost Sharing Agreement and the arbitration resolved disputes that arose out of the Company's 1978 sale of its Fox River facilities to API. The Cost Sharing Agreement and arbitration award resulted in a 45% share for NCR of the first $75 million of such costs (a threshold that was reached in 2008), and a 40% share for amounts in excess of $75 million. The Funding Agreement arose out of a 2012 to 2014 arbitration dispute between NCR and API, and provides for regular, ongoing funding of NCR incurred Fox River remediation costs via contributions, made to a new limited liability corporation created by the Funding Agreement, by BAT, API and, for 2014, API's indemnitor, Windward Prospects. The Funding Agreement creates an obligation on BAT and API to fund 50% of NCR’s Fox River remediation costs from October 1, 2014 forward (API’s Fox River-related obligations under the Funding Agreement were fully satisfied in 2016); the Funding Agreement also provides NCR contractual avenues for payment of, via direct and third-party sources, (1) the difference between BAT’s and API’s 60% obligation under the Cost Sharing Agreement and arbitration award on the one hand and their ongoing (since September 2014) 50% payments under the Funding Agreement on the other, as well as (2) the difference between the amount NCR received under the Funding Agreement and the amount owed to it under the Cost Sharing Agreement and arbitration award for the period from April 2012 through September 2014. As of December 31, 2020 and 2019, the receivable under the Funding Agreement was approximately $54 million and $53 million, respectively, and was included in other assets in the Consolidated Balance Sheet. The Company anticipates that it will collect sums related to the receivable after 2021, subject and pursuant to the terms of the Funding Agreement and related agreements. This receivable is not taken into account in calculating the Company’s Fox River net reserve. The Company's litigations relating to contribution and enforcement claims concerning the Fox River have been concluded. A proposed consent decree settlement (the CD settlement) with respect to the contribution action (a case originally filed by NCR and API) and the government enforcement action (a case originally filed by the federal and state governments against several PRPs, including the Company) was successfully negotiated by NCR and the federal and state governments and was approved on August 22, 2017 by the federal district court in Wisconsin that had been presiding over those cases. A final order of dismissal as to the Company in the contribution and government enforcement actions was subsequently entered; one party, Glatfelter, had appealed the approval of the CD settlement. On January 3, 2019, the United States lodged a proposed consent decree with the Wisconsin court, reflecting a settlement reached by the United States, Wisconsin and Glatfelter with respect to Glatfelter’s Fox River liability under the government enforcement action; a component of that settlement was withdrawal of Glatfelter’s appeal opposing the Company’s CD settlement. On March 14, 2019, the Wisconsin court approved the Glatfelter consent decree, and on April 3, 2019, Glatfelter's appeal was dismissed. The CD settlement has now resolved the remaining Fox River-related contribution and enforcement claims against the Company. The key components of the approved CD settlement include (1) the Company’s commitment to complete the remediation of the Fox River, which has now been completed; (2) the Company’s conditional agreement to waive its contribution claims against the two remaining defendants in the case, GP and Glatfelter; (3) the Company’s agreement not to appeal the trial court’s decision on divisibility of harm; (4) the Governments’ agreement to include in the settlement so-called “contribution protection” in the Company’s favor as to GP’s and Glatfelter’s contribution claims against the Company, the effect of which will be to extinguish those claims; (5) the Governments’ agreement not to pursue the Company for the Governments’ past oversight costs; and (6) the Governments’ agreement to exercise prosecutorial discretion in pursuing other parties for future oversight costs and long-term monitoring and maintenance, with the Company retaining so-called “backstop” liability in the event that the other parties fail to pay future oversight costs or to perform long-term monitoring and maintenance. Additionally, although certain state law claims by GP and Glatfelter against the Company may not be affected directly by the CD settlement, the CD settlement provides that the Company’s contribution claims against those two parties will revive if those parties attempt to assert any claims against the Company relating to the Fox River, including any state law claims. In the quarter ending September 30, 2017, the remediation general contractor commenced an arbitration against the LLC, in a dispute over contract interpretation. The hearing on this matter was completed in June 2019, and the parties submitted post-trial briefs in August 2019. The amounts claimed by the contractor range from approximately $46 million to approximately $53 million; the Company disputed the claims and contested them vigorously during the hearing. In November 2019, having rejected substantial portions of the claims, the arbitration panel awarded the contractor approximately $10 million. The Company’s indemnitors and co-obligors, described below, were responsible for the majority of the award, with the Company’s share being approximately 25% of the award. With respect to the Company’s prior dispute with API, which was generally superseded by the Funding Agreement, the Company received timely payments as they came due under the Funding Agreement. Although API filed for bankruptcy protection in October 2017, it had made all of the payments to the Company in connection with the Fox River that are required of it by the Funding Agreement. NCR's eventual remediation liability, followed by long-term monitoring expected to be performed by others, will depend on a number of factors. In establishing the reserve, NCR attempts to estimate a range of reasonably possible outcomes for each of these factors, although each range is itself uncertain. NCR uses its best estimate within the range, if that is possible. Where there is a range of equally possible outcomes, and there is no amount within that range that is considered to be a better estimate than any other amount, NCR uses the low end of the range. The significant factors include: (1) the total remaining site costs, including the costs associated with decommissioning the site, the expected cost impact of which is expected to be neutral or non-material to the Company, including long-term monitoring following completion of the clean-up, and what parties are assigned to discharge the post-clean-up tasks (as noted, the Company no longer expects to bear long-term monitoring costs); (2) total NRD for the site and the share that NCR will bear (which is now resolved as to the Company); (3) the share of clean-up costs that NCR will bear (which is resolved under the CD settlement); (4) NCR's transaction and litigation costs to defend itself to the extent additional litigation is required with respect to claims brought by the general contractor; and (5) the share of NCR's payments that BAT will bear (which is governed by the Cost Sharing Agreement and the Funding Agreement, BAT has made all of the payments requested of it, and as discussed above; API is in bankruptcy and is not presumed likely to bear further shares of NCR's payments). With respect to NRD, in connection with a certain settlement entered into by other PRPs in 2015, the Government withdrew the NRD claims it had prosecuted on behalf of NRD trustees, including those NRD claims asserted against the Company. Calculation of the Company's Fox River reserve is subject to several complexities, and it is possible there could be additional changes to some elements of the reserve over upcoming periods, although the Company is unable to predict or estimate such changes at this time. There can be no assurance that the clean-up and related expenditures and liabilities will not have a material effect on NCR's capital expenditures, earnings, financial condition, cash flows, or competitive position. As of December 31, 2020 and 2019, the gross reserve for the Fox River matter was approximately $6 million and $5 million, respectively. As of December 31, 2020 and 2019, the net reserve for the Fox River matter was approximately $28 million and $16 million, respectively. NCR contributes to the LLC to fund remediation activities and generally, by contract, has funded certain amounts of remediation expenses in advance. As of December 31, 2020 and 2019, approximately zero remained from this funding. NCR's reserve for the Fox River matter is reduced as the LLC makes payments to the remediation contractor and other vendors with respect to remediation activities. Under a 1996 agreement, AT&T Corp. (AT&T) and Nokia (as the successor to Lucent Technologies and Alcatel-Lucent USA) are responsible severally (not jointly) for indemnifying NCR for certain portions of the amounts paid by NCR for the Fox River matter over a defined threshold and subject to certain offsets. (The agreement governs certain aspects of AT&T's divestiture of NCR and of what was then known as Lucent Technologies.) Those companies have made the payments requested of them by the Company on an ongoing basis. Kalamazoo River In November 2010, USEPA issued a "general notice letter" to NCR with respect to the Allied Paper, Inc./Portage Creek/Kalamazoo River Superfund Site (Kalamazoo River site) in Michigan. Three other companies - International Paper, Mead Corporation, and Consumers Energy - also received general notice letters at or about the same time. USEPA asserts that the site is contaminated by various substances, primarily PCBs, as a result of discharges by various paper mills located along the river. USEPA does not claim that the Company made direct discharges into the Kalamazoo River, and NCR never had facilities at or near the Kalamazoo River site, but USEPA indicated that "NCR may be liable under Section 107 of CERCLA ... as an arranger, who by contract or agreement, arranged for the disposal, treatment and/or transportation of hazardous substances at the Site." USEPA stated that it "may issue special notice letters to [NCR] and other PRPs for future RI/FS [remedial investigation / feasibility studies] and RD/RA [remedial design / remedial action] negotiations." In connection with the Kalamazoo River site, in December 2010 the Company, along with two other defendants, was sued in federal court by three Georgia-Pacific (GP) affiliate corporations in a private-party contribution and cost recovery action for alleged pollution. The suit, pending in Michigan, asks that the Company and other defendants pay a "fair portion" of these companies’ costs. Various removal and remedial actions remain to be decided upon and performed at the Kalamazoo River site, the total costs for which generally remain undetermined; in 2017, Records of Decisions were issued for two parts of the river, and in 2018 such a decision was issued for another part of the river, but such decisions for the majority of the work are expected to be made only over the next several years. The suit alleges that the Company is liable to the GP entities as an "arranger" under CERCLA. The initial phase of the case was tried in a Michigan federal court in February 2013; on September 26, 2013 the court issued a decision that held NCR was liable as an “arranger” as of at least March 1969. (PCB-containing carbonless copy paper was produced from approximately 1954 to April 1971, and the majority of contamination at the Kalamazoo River site had occurred prior to 1969). NCR preserved its right to appeal the September 2013 decision. In the 2013 decision the Court did not determine NCR’s share of the overall liability. Relative shares of liability for the four companies were tried to the court in a subsequent phase of the case in December 2015. In a ruling issued on March 29, 2018, the court addressed responsibility for the costs that GP had incurred in the past, totaling to approximately $50 million (GP had sought approximately $105 million, but $55 million of those claims were removed by the court upon motions filed by the Company and other parties); NCR and GP were each assigned a 40% share of those costs, and the other two companies were assigned 15% and 5% as their allocations. The court entered a judgment in the case on June 19, 2018, in which it indicated that it would not allocate future costs, but would enter a declaratory judgment that the four companies together had responsibility for future costs, in amounts and shares to be determined. Cross-proceedings have been commenced to obtain recoveries from the other parties pursuant to the judgment; those proceedings were stayed pending the appeal referenced below. In July 2018, the Company appealed to the United States Court of Appeals for the Sixth Circuit both the 2013 court decision, which it believes is in conflict with a decision from the Fox River trial court as to Operable Unit 1 of that site and an affirmance of that decision from the Court of Appeals for the Seventh Circuit, and the 2018 court decision, on various legal grounds. The Company filed a bond to stay any execution of the judgment pending the appeal, and its application for a stay was approved by the court and remains stayed until the Company filed its dismissal of the appeal on December 31, 2020 pursuant to a Consent Decree, noted below. During the pendency of the Sixth Circuit stay, the Company negotiated a settlement of the Kalamazoo River matter with the USEPA and other government agencies having oversight over the river. On December 5, 2019, the Company entered into a Consent Decree, filed with the District Court on December 11, 2019, and on December 2, 2020, the District Court approved the Consent Decree, which has now resolved all litigation associated with the river clean-up, including the Sixth Circuit appeal. The Consent Decree requires the Company to pay GP its 40% share of past costs, to pay the USEPA and state agencies their past and future administrative costs, and to dismiss its Sixth Circuit appeal. The Consent Decree further requires the Company to take responsibility for the remediation of a portion, but not all, of the Kalamazoo River. The Consent Decree further provides the Company protection from other PRPs, including GP, seeking contribution for their costs associated with the clean-up anywhere on the river, thereby resolving the allocation of future costs left unresolved by the June 19, 2019 judgment. NCR expects to have claims against BAT and API under the Funding Agreement discussed above for the Kalamazoo River remediation expenses. API filed for bankruptcy protection in October 2017, and thus payment of its potential share under the Funding Agreement for so-called “future sites,” which would include the Kalamazoo River site, may be at risk, but as liability under the Cost Sharing Agreement and the Funding Agreement is joint and several, the bankruptcy is not anticipated to affect the Company’s ability to seek that amount from BAT. The Company will also have indemnity or reimbursement claims against AT&T and Nokia under the arrangement discussed above in connection with the Fox River matter after expenses have met a contractual threshold set out in the 1996 agreement referenced above in the Fox River discussion. As of December 31, 2020, the reserve for Kalamazoo was $164 million as compared to $81 million as of December 31, 2019; that figure is reported on a basis that is net of expected contributions from the Company's co-obligors and indemnitors, subject to when the applicable threshold is reached. While the Company believes its co-obligors' and indemnitors' obligations are as previously reported, the increase in the reserve reflects changes in positions taken by some of those co-obligors and indemnitors with respect to the Kalamazoo River. The contributions from its co-obligors and indemnitors are expected to range from $70 million to $140 million and the Company will continue to pursue such contribution. As many aspects of the costs of remediation will not be determined for several years (and thus the high end of a range of possible costs for many areas of the site cannot be quantified at this time), the Company has made what it considers to be reasonable estimates of the low end of a range for such costs where remedies are identified, and/or of the costs of investigations and studies for areas of the river where remedies have not yet been determined, and the reserve is informed by those estimates. The extent of NCR’s potential liability remains subject to many uncertainties, notwithstanding the settlement of this matter and related Consent Decree noted above, particularly inasmuch as remedy decisions and cost estimates will not be generated until times in the future and as most of the work to be performed will take place through the 2030s. Under other assumptions or estimates for possible costs of remediation, which the Company does not at this point consider to be reasonably estimable or verifiable, it is possible that the reserve the Company has taken to discontinued operations reflected in this paragraph could more than approximately double the reflected reserve. Ebina The Company is engaged in cooperative regulatory compliance activities with the government of Japan in connection with certain environmental contaminants generated in its past operations in that country. The Company has quantities of PCB and other wastes primarily from its former plant at Oiso, Japan, including capsulated undiluted solutions manufactured in the past, capacitors, light ballasts and PCB-affected soil from the Oiso plant that was excavated and placed in steel drums. These wastes are stored in a facility at Ebina, Japan in accordance with Japanese regulations governing such materials. Over the past several years Japan has enacted and amended legislation governing such wastes, and has set a current deadline for treating and disposing of (at government-constructed disposal facilities) the highest-concentration wastes by 2027. Lower-concentration wastes can be and have been disposed of via private contractors, and as of December 31, 2020, NCR had disposed of more than a third of its lower-concentration wastes. The Company and its consultants have met and communicated regularly with the Japanese agency charged with administration of the law, and are working with that agency on a program to manage disposal of the high-concentration wastes, including tests of technologies to make the disposal more efficient. Pending final government approvals, the Company expects to begin disposal of high-concentration wastes in early 2021, with final deadlines for various of the government-constructed disposal sites currently set for 2022, 2023 and later. Low-concentration wastes are required to be contracted for disposal by 2027, a timetable that the Company expects to meet. In September 2019, the Company’s environmental consultants, following a series of communications and meetings with the Japanese agency, at the Company’s request prepared an estimate of remaining disposal costs over the coming several years. While the estimate is subject to a range of assumptions and uncertainties, including prospects of cost reduction in coordination with the agency as certain field testing to separate high-concentration and low-concentration waste progresses over the coming years, the Company has adjusted its existing reserve for the matter to take into account this cost estimate, and that reserve as of December 31, 2020 and 2019 is $20 million and $19 million, respectively. The Japan environmental waste issue is treated as a compliance matter and not as litigation or enforcement, and the Company has received no threats of litigation or enforcement. Environmental-Related Insurance Recoveries In connection with the Fox River and other environmental sites, through December 31, 2020, NCR has received a combined gross total of approximately $202 million in settlements reached with various of its insurance carriers. Portions of many of these settlements agreed in the 2010 through 2013 timeframe are payable to a law firm that litigated the claims on the Company's behalf. Some of the settlements cover not only the Fox River but also other environmental sites; some are limited to either the Fox River or the Kalamazoo River site. Some of the settlements are directed to defense costs and some are directed to indemnity; some settlements cover both defense costs and indemnity. The Company does not anticipate that further material insurance recoveries specific to Kalamazoo River remediation costs will be available to it, owing to considerations under applicable Michigan law. Claims with respect to Kalamazoo River defense costs have now been settled, with the amounts of those settlements included in the sum reported above. Environmental Remediation Estimates It is difficult to estimate the future financial impact of environmental laws, including potential liabilities. NCR records environmental provisions when it is probable that a liability has been incurred and the amount or range of the liability is reasonably estimable; in accordance with accounting guidance, where liabilities are not expected to be quantifiable or estimable for a period of years, the estimated costs of investigating those liabilities are recorded as a component of the reserve for that particular site. Provisions for estimated losses from environmental restoration and remediation are, depending on the site, based generally on internal and third-party environmental studies, estimates as to the number and participation level of other PRPs, the extent of contamination, estimated amounts for attorney and other fees, and the nature of required clean-up and restoration actions. Reserves are adjusted as further information develops or circumstances change. Management expects that the amounts reserved from time to time will be paid out over the period of investigation, negotiation, remediation and restoration for the applicable sites. The amounts provided for environmental matters in NCR's Consolidated Financial Statements are the estimated gross undiscounted amounts of such liabilities, without deductions for indemnity insurance, third-party indemnity claims or recoveries from other PRPs, except as qualified in the following sentences. In those cases where insurance carriers or third-party indemnitors have agreed to pay any amounts and management believes that collectability of such amounts is probable, the amounts are recorded in the Consolidated Financial Statements. For the Fox River and Kalamazoo River sites, as described above, assets relating to the AT&T and Nokia indemnities and to the BAT obligations are recorded as payment is supported by contractual agreements, public filings and/or payment history. Guarantees and Product Warranties In the ordinary course of business, NCR may issue performance guarantees on behalf of its subsidiaries to certain of its customers and other parties. Some of those guarantees may be backed by standby letters of credit, surety bonds, or similar instruments. In general, under the guarantees, NCR would be obligated to perform, or cause performance, over the term of the underlying contract in the event of an unexcused, uncured breach by its subsidiary, or some other specified triggering event, in each case as defined by the applicable guarantee. NCR believes the likelihood of having to perform under any such guarantee is remote. As of December 31, 2020 and 2019, NCR had no material obligations related to such guarantees, and therefore its Consolidated Financial Statements do not have any associated liability balance. NCR provides its customers a standard manufacturer’s warranty and records, at the time of the sale, a corresponding estimated liability for potential warranty costs. Estimated future obligations due to warranty claims are based upon historical factors, such as labor rates, average repair time, travel time, number of service calls per machine and cost of replacement parts. When a sale is consummated, the total customer revenue is recognized, provided that all revenue recognition criteria are otherwise satisfied, and the associated warranty liability is recorded using pre-established warranty percentages for the respective product classes. From time to time, product design or quality corrections are accomplished through modification programs. When identified, associated costs of labor and parts for such programs are estimated and accrued as part of the warranty reserve. The Company recorded the activity related to the warranty reserve for the years ended December 31 as

Leasing (Notes)

Leasing (Notes)	12 Months Ended
Leasing (Notes)	Dec. 31, 2020
Leases [Abstract]
Lessee, Operating Leases [Text Block]	10. LEASING The following table presents our lease balances as of December 31: In millions Location in the Consolidated Balance Sheet December 31, 2020 December 31, 2019 Assets Operating lease assets Operating lease assets $ 344 $ 391 Finance lease assets Property, plant and equipment, net 55 38 Accumulated Amortization of Finance lease assets Property, plant and equipment, net (18) (5) Total leased assets $ 381 $ 424 Liabilities Current Operating lease liabilities Other current liabilities $ 85 $ 91 Finance lease liabilities Other current liabilities 15 10 Noncurrent Operating lease liabilities Operating lease liabilities 325 369 Finance lease liabilities Other liabilities 23 25 Total lease liabilities $ 448 $ 495 The following table presents our lease costs for operating and finance leases: In millions For the year ended December 31, 2020 For the year ended December 31, 2019 Operating lease cost $ 125 $ 137 Finance lease cost Amortization of leased assets 13 5 Interest on lease liabilities 1 1 Short-Term lease cost 5 5 Variable lease cost 27 30 Total lease cost $ 171 $ 178 Total rental expense for operating leases was $148 million in 2018. The following table presents the supplemental cash flow information: In millions For the year ended December 31, 2020 For the year ended December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 128 $ 141 Operating cash flows from finance leases $ 2 $ 1 Financing cash flows from finance leases $ 13 $ 4 Lease Assets Obtained in Exchange for Lease Obligations Operating Leases $ 31 $ 45 Finance Leases $ 15 $ 33 The following table reconciles the undiscounted cash flows for each of the first five years and total of the remaining years to the finance lease liabilities and operating lease liabilities recorded on the Consolidated Balance Sheet as of December 31, 2020: In millions Operating Leases Finance Leases 2021 $ 108 $ 16 2022 77 15 2023 51 8 2024 42 1 2025 35 — Thereafter 240 — Total lease payments 553 40 Less: Amount representing interest (143) (2) Present value of lease liabilities $ 410 $ 38 As of December 31, 2020, we have additional operating leases of $74 million, primarily for a real estate lease in Europe, that have not yet commenced. This operating lease is expected to commence in 2021 with a lease term of 10 years. The following table presents the weighted average remaining lease term and interest rates: December 31, 2020 December 31, 2019 Weighted average lease term: Operating leases 8.7 years 8.9 years Finance leases 2.7 years 3.4 years Weighted average interest rates: Operating leases 6.45 % 6.42 % Finance leases 4.59 % 3.72 % .
Lessee, Finance Leases [Text Block]	10. LEASING The following table presents our lease balances as of December 31: In millions Location in the Consolidated Balance Sheet December 31, 2020 December 31, 2019 Assets Operating lease assets Operating lease assets $ 344 $ 391 Finance lease assets Property, plant and equipment, net 55 38 Accumulated Amortization of Finance lease assets Property, plant and equipment, net (18) (5) Total leased assets $ 381 $ 424 Liabilities Current Operating lease liabilities Other current liabilities $ 85 $ 91 Finance lease liabilities Other current liabilities 15 10 Noncurrent Operating lease liabilities Operating lease liabilities 325 369 Finance lease liabilities Other liabilities 23 25 Total lease liabilities $ 448 $ 495 The following table presents our lease costs for operating and finance leases: In millions For the year ended December 31, 2020 For the year ended December 31, 2019 Operating lease cost $ 125 $ 137 Finance lease cost Amortization of leased assets 13 5 Interest on lease liabilities 1 1 Short-Term lease cost 5 5 Variable lease cost 27 30 Total lease cost $ 171 $ 178 Total rental expense for operating leases was $148 million in 2018. The following table presents the supplemental cash flow information: In millions For the year ended December 31, 2020 For the year ended December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 128 $ 141 Operating cash flows from finance leases $ 2 $ 1 Financing cash flows from finance leases $ 13 $ 4 Lease Assets Obtained in Exchange for Lease Obligations Operating Leases $ 31 $ 45 Finance Leases $ 15 $ 33 The following table reconciles the undiscounted cash flows for each of the first five years and total of the remaining years to the finance lease liabilities and operating lease liabilities recorded on the Consolidated Balance Sheet as of December 31, 2020: In millions Operating Leases Finance Leases 2021 $ 108 $ 16 2022 77 15 2023 51 8 2024 42 1 2025 35 — Thereafter 240 — Total lease payments 553 40 Less: Amount representing interest (143) (2) Present value of lease liabilities $ 410 $ 38 As of December 31, 2020, we have additional operating leases of $74 million, primarily for a real estate lease in Europe, that have not yet commenced. This operating lease is expected to commence in 2021 with a lease term of 10 years. The following table presents the weighted average remaining lease term and interest rates: December 31, 2020 December 31, 2019 Weighted average lease term: Operating leases 8.7 years 8.9 years Finance leases 2.7 years 3.4 years Weighted average interest rates: Operating leases 6.45 % 6.42 % Finance leases 4.59 % 3.72 % .

Series A Preferred Stock (Notes

Series A Preferred Stock (Notes)	12 Months Ended
Series A Preferred Stock (Notes)	Dec. 31, 2020
Series A Preferred Stock [Abstract]
Preferred Stock [Text Block]	11. SERIES A PREFERRED STOCK On December 4, 2015, NCR issued 820,000 shares of Series A Convertible Preferred Stock to certain entities affiliated with the Blackstone Group L.P. (collectively, Blackstone) for an aggregate purchase price of $820 million, or $1,000 per share, pursuant to an Investment Agreement between the Company and Blackstone, dated November 11, 2015. In connection with the issuance of the Series A Convertible Preferred Stock, the Company incurred direct and incremental expenses of $26 million, including financial advisory fees, closing costs, legal expenses and other offering-related expenses. These direct and incremental expenses originally reduced the Series A Convertible Preferred Stock, and will be accreted through retained earnings as a deemed dividend from the date of issuance through the first possible known redemption date, March 16, 2024. During the years ended December 31, 2020, 2019 and 2018, the Company paid dividends-in-kind of $10 million, $43 million, and $46 million, respectively, associated with the Series A Convertible Preferred Stock. There were cash dividends of $9 million declared during the year ended December 31, 2020 and there were no cash dividends during the years ended December 31, 2019 and 2018. In 2017, in connection with the early release of the lock-up included in the Investment Agreement, Blackstone offered for sale 342,000 shares of Series A Convertible Preferred Stock in an underwritten public offering. In addition, Blackstone converted 90,000 shares of Series A Convertible Preferred Stock into shares of our common stock and we repurchased those shares of common stock for $48.47 per share. The underwritten offering and the stock repurchase were consummated on March 17, 2017. On September 18, 2019, NCR entered into an agreement to repurchase and convert the outstanding 512,221 shares of Series A Convertible Preferred Stock owned by Blackstone. NCR repurchased 237,673 shares of Series A Convertible Preferred Stock for total cash consideration of $302 million. The remaining shares of Blackstone's Series A Convertible Preferred Stock, including accrued dividends, were converted to approximately 9.16 million shares of common stock at a conversion price of $30.00 per share. For the repurchase of Series A Convertible Preferred Stock, the excess of the fair value of consideration transferred over the carrying value was approximately $67 million, and has been included as a deemed dividend in adjusting the income from common stockholders in calculating earnings per share. In this analysis, we determined the fair value of the consideration transferred was not in excess of the fair value of the redeemed Series A Convertible Preferred Stock. As a result, there was no inducement provided to Blackstone for the conversion of the remaining preferred shares into common stock. On October 6, 2020, NCR entered into a definitive agreement to repurchase 67,000 shares of Series A Convertible Preferred Stock from two affiliated shareholders for a total cash consideration of $72 million. The transaction closed on October 7, 2020. On October 12, 2020, NCR entered into a definitive agreement to repurchase 65,365 shares of Series A Convertible Preferred Stock owned by two affiliated shareholders for a total cash consideration of $72 million. The transaction closed on October 13, 2020. The excess of the fair value of consideration transferred over the carrying value was approximately $12 million, and has been included as a deemed dividend in adjusting the income from common stockholders in calculating earnings per share. Dividend Rights The Series A Convertible Preferred Stock ranks senior to the shares of the Company’s common stock, with respect to dividend rights and rights on the distribution of assets on any voluntary or involuntary liquidation, dissolution or winding up of the affairs of the Company. The Series A Convertible Preferred Stock has a liquidation preference of $1,000 per share. Holders of Series A Convertible Preferred Stock are entitled to a cumulative dividend at the rate of 5.5% per annum, which was payable quarterly in arrears and payable in-kind for the first sixteen dividend payments, after which, beginning in the first quarter of 2020, dividends are payable in cash or in-kind at the option of the Company. If the Company does not declare and pay a dividend, the dividend rate will increase to 8.0% per annum until all accrued but unpaid dividends have been paid in full. Conversion Features The Series A Convertible Preferred Stock is convertible at the option of the holders at any time into shares of common stock at a conversion price of $30.00 per share and a conversion rate of 33.333 shares of common stock per share of Series A Convertible Preferred Stock. As of December 31, 2020 and 2019, the maximum number of common shares that could be required to be issued upon conversion of the outstanding shares of Series A Convertible Preferred Stock was 9.2 million and 13.3 million shares, respectively. The conversion rate is subject to the following customary anti-dilution and other adjustments: • the issuance of common stock as a dividend or the subdivision, combination, or reclassification of common stock into a greater or lesser number of shares of common stock; • the dividend, distribution or other issuance of rights, options or warrants to holders of Common Stock entitling them to subscribe for or purchase shares of common stock at a price per share that is less than the volume-weighted average price per share of common stock; • the completion of a tender offer or exchange offer of shares of common stock at a premium to the volume-weighted average price per share of common stock and certain other above-market purchases of common stock; • the issuance of a dividend or similar distribution in-kind, which can include shares of any class of capital stock, evidences of the Company's indebtedness, assets or other property or securities, to holders of common stock; • a transaction in which a subsidiary of the Company ceases to be a subsidiary of the Company as a result of the distribution of the equity interests of the subsidiary to the holders of the Company’s common stock; and • the payment of a cash dividend to the holders of common stock. At any time after December 4, 2018, all outstanding shares of Series A Convertible Preferred Stock are convertible at the option of the Company if the volume-weighted average price of the common stock exceeds $54.00 for at least 30 trading days in any period of 45 consecutive trading days. The $54.00 may be adjusted pursuant to the anti-dilution provisions above. The Series A Convertible Preferred Stock, and the associated dividends for the first sixteen payments, did not generate a beneficial conversion feature (BCF) upon issuance as the fair value of the Company's common stock was greater than the conversion price. The Company will determine and, if required, measure a BCF based on the fair value of our stock price on the date dividends are declared subsequent to the sixteenth dividend. If a BCF is recognized, a reduction to retained earnings and the Series A Convertible Preferred Stock will be recorded, and then subsequently accreted through the first redemption date. Additionally, the Company determined that the nature of the Series A Convertible Preferred Stock was more akin to an equity instrument and that the economic characteristics and risks of the embedded conversion options were clearly and closely related to the Series A Convertible Preferred Stock. As such, the conversion options were not required to be bifurcated from the host under ASC 815, Derivatives and Hedging. Redemption Rights On any date during the three months commencing on and immediately following March 16, 2024 and the three months commencing on and immediately following every third anniversary of March 16, 2024, holders of Series A Convertible Preferred Stock have the right to require the Company to repurchase all or any portion of the Series A Convertible Preferred Stock at 100% of the liquidation preference thereof plus all accrued but unpaid dividends. Upon certain change of control events involving the Company, holders of Series A Convertible Preferred Stock can require the Company to repurchase, subject to certain exceptions, all or any portion of the Series A Convertible Preferred Stock at the greater of (1) an amount in cash equal to 100% of the liquidation preference thereof plus all accrued but unpaid dividends and (2) the consideration the holders would have received if they had converted their shares of Series A Convertible Preferred Stock into common stock immediately prior to the change of control event. The Company has the right, upon certain change of control events involving the Company, to redeem the Series A Convertible Preferred Stock at the greater of (1) an amount in cash equal to the sum of the liquidation preference of the Series A Convertible Preferred Stock, all accrued but unpaid dividends and the present value, discounted at a rate of 10%, of any remaining scheduled dividends through the fifth anniversary of the first dividend payment date, assuming the Company chose to pay such dividends in cash (the "make-whole provision") and (2) the consideration the holders would have received if they had converted their shares of Series A Convertible Preferred Stock into common stock immediately prior to the change of control event. Since the redemption of the Series A Convertible Preferred Stock is contingently or optionally redeemable and therefore not certain to occur, the Series A Convertible Preferred Stock is not required to be classified as a liability under ASC 480, Distinguishing Liabilities from Equity . As the Series A Convertible Preferred Stock is redeemable in certain circumstances at the option of the holder and is redeemable in certain circumstances upon the occurrence of an event that is not solely within our control, we have classified the Series A Convertible Preferred Stock in mezzanine equity in the Consolidated Balance Sheets. As noted above, the Company determined that the nature of the Series A Convertible Preferred Stock was more akin to an equity instrument. However, the Company determined that the economic characteristics and risks of the embedded put options, call option and make-whole provision were not clearly and closely related to the Series A Convertible Preferred Stock. Therefore, the Company assessed the put and call options further, and determined they did not meet the definition of a derivative under ASC 815, Derivatives and Hedging. Under the same analysis, the Company determined the make-whole provision did meet the definition of a derivative, but that the value of the derivative was minimal due to the expectations surrounding the scenarios under which the call option and make-whole provision would be exercised. Voting Rights Holders of Series A Convertible Preferred Stock are entitled to vote with the holders of the common stock on an as-converted basis. Holders of Series A Convertible Preferred Stock are entitled to a separate class vote with respect to, amendments to the Company’s organizational documents that have an adverse effect on the Series A Convertible Preferred Stock and issuances by the Company of securities that are senior to, or equal in priority with, the Series A Convertible Preferred Stock.

Derivatives and Hedging Instrum

Derivatives and Hedging Instruments	12 Months Ended
Derivatives and Hedging Instruments	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Instruments	12. DERIVATIVES AND HEDGING INSTRUMENTS NCR is exposed to risks associated with changes in foreign currency exchange rates and interest rates. NCR utilizes a variety of measures to monitor and manage these risks, including the use of derivative financial instruments. NCR has exposure to approximately 50 functional currencies. Since a substantial portion of our operations and revenue occur outside the U.S., and in currencies other than the U.S. Dollar, our results can be significantly impacted, both positively and negatively, by changes in foreign currency exchange rates. Foreign Currency Exchange Risk The accounting guidance for derivatives and hedging requires companies to recognize all derivative instruments as either assets or liabilities at fair value in the Consolidated Balance Sheets. The Company designates foreign exchange contracts as cash flow hedges of forecasted transactions when they are determined to be highly effective at inception. Our risk management strategy includes hedging, on behalf of certain subsidiaries, a portion of our forecasted, non-functional currency denominated cash flows for a period of up to 15 months. As a result, some of the impact of currency fluctuations on non-functional currency denominated transactions (and hence on subsidiary operating income, as stated in the functional currency), is mitigated in the near term. The amount we hedge and the duration of hedge contracts may vary significantly. In the longer term (greater than 15 months), the subsidiaries are still subject to the effect of translating the functional currency results to U.S. Dollars. To manage our exposures and mitigate the impact of currency fluctuations on the operations of our foreign subsidiaries, we hedge our main transactional exposures through the use of foreign exchange forward and option contracts. This is primarily done through the hedging of foreign currency denominated inter-company inventory purchases by NCR’s marketing units and the foreign currency denominated inputs to our manufacturing units. The related foreign exchange contracts are designated as highly effective cash flow hedges. The gains or losses on these hedges are deferred in accumulated other comprehensive income (AOCI) and reclassified to income when the underlying hedged transaction is recorded in earnings. As of December 31, 2020, the balance in AOCI related to foreign exchange derivative transactions was zero. The gains or losses from derivative contracts related to inventory purchases are recorded in cost of products when the inventory is sold to an unrelated third party. We also utilize foreign exchange contracts to hedge our exposure of assets and liabilities denominated in non-functional currencies. We recognize the gains and losses on these types of hedges in earnings as exchange rates change. We do not enter into hedges for speculative purposes. The following tables provide information on the location and amounts of derivative fair values in the Consolidated Balance Sheets: Fair Values of Derivative Instruments December 31, 2020 In millions Balance Sheet Location Notional Fair Balance Sheet Location Notional Fair Derivatives designated as hedging instruments Foreign exchange contracts Other current assets $ — $ — Other current liabilities $ — $ — Total derivatives designated as hedging instruments $ — $ — Derivatives not designated as hedging instruments Foreign exchange contracts Other current assets $ 150 $ — Other current liabilities $ 425 $ 1 Total derivatives not designated as hedging instruments $ — $ 1 Total derivatives $ — $ 1 Fair Values of Derivative Instruments December 31, 2019 In millions Balance Sheet Location Notional Fair Balance Sheet Location Notional Fair Derivatives designated as hedging instruments Foreign exchange contracts Other current assets $ 55 $ 1 Other current liabilities $ — $ — Total derivatives designated as hedging instruments $ 1 $ — Derivatives not designated as hedging instruments Foreign exchange contracts Other current assets $ 71 $ 1 Other current liabilities $ 264 $ 1 Total derivatives not designated as hedging instruments $ 1 $ 1 Total derivatives $ 2 $ 1 The effects of derivative instruments on the Consolidated Statement of Operations for the years ended December 31 were as follows: In millions Amount of Gain (Loss) Recognized in Other Comprehensive Income (OCI) on Derivative Amount of (Gain) Loss Reclassified from AOCI into the Consolidated Statement of Operations Derivatives in Cash Flow Hedging Relationships For the year ended December 31, 2020 For the year ended December 31, 2019 For the year ended December 31, 2018 Location of (Gain) Loss Reclassified from AOCI into the Consolidated Statement of Operations (Effective Portion) For the year ended December 31, 2020 For the year ended December 31, 2019 For the year ended December 31, 2018 Foreign exchange contracts $ (8) $ 6 $ 11 Cost of products $ 7 $ (8) $ (7) In millions Amount of Gain (Loss) Recognized in the Derivatives not Designated as Hedging Instruments Location of Gain (Loss) Recognized in the Consolidated Statement of Operations For the year ended December 31, 2020 For the year ended December 31, 2019 For the year ended December 31, 2018 Foreign exchange contracts Other income (expense), net $ 22 $ (8) $ (9) Refer to Note 13, “Fair Value of Assets and Liabilities” for further information on derivative assets and liabilities recorded at fair value on a recurring basis. Concentration of Credit Risk NCR is potentially subject to concentrations of credit risk on accounts receivable and financial instruments such as hedging instruments and cash and cash equivalents. Credit risk includes the risk of nonperformance by counterparties. The maximum potential loss may exceed the amount recognized on the Consolidated Balance Sheets. Exposure to credit risk is managed through credit approvals, credit limits, selecting major international financial institutions as counterparties to hedging transactions and monitoring procedures. NCR’s business often involves large transactions with customers, and if one or more of those customers were to default on its obligations under applicable contractual arrangements, the Company could be exposed to potentially significant losses. However, management believes that the reserves for potential losses are adequate. As of December 31, 2020 and 2019, NCR did not have any major concentration of credit risk related to financial instruments.

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	12 Months Ended
Fair Value of Assets and Liabilities	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	13. FAIR VALUE OF ASSETS AND LIABILITIES Assets and Liabilities Measured at Fair Value on a Recurring Basis Assets and liabilities recorded at fair value on a recurring basis as of December 31, 2020 and 2019 are set forth as follows: December 31, 2020 December 31, 2019 Fair Value Measurements Using Fair Value Measurements Using In millions December 31, 2020 Quoted Prices Significant Other Significant December 31, 2019 Quoted Prices Significant Other Significant Assets: Deposits held in money market mutual funds (1) $ 22 $ 22 $ — $ — $ 15 $ 15 $ — $ — Foreign Investments (2) 2 — 2 — — — — — Foreign exchange contracts (2) — — — — 2 — 2 — Total $ 24 $ 22 $ 2 $ — $ 17 $ 15 $ 2 $ — Liabilities: Foreign exchange contracts (3) 1 — 1 — 1 — 1 — Total $ 1 $ — $ 1 $ — $ 1 $ — $ 1 $ — (1) Included in Cash and cash equivalents in the Consolidated Balance Sheet. (2) Included in Other current assets in the Consolidated Balance Sheet. (3) Included in Other current liabilities in the Consolidated Balance Sheet. Deposits Held in Money Market Mutual Funds A portion of the Company’s excess cash is held in money market mutual funds which generate interest income based on prevailing market rates. Money market mutual fund holdings are measured at fair value using quoted market prices and are classified within Level 1 of the valuation hierarchy. Foreign Investments As a result of our acquisition of Origami, as noted within Note 3, "Business Combinations and Divestitures", we acquired investments held in Brazil. The investments include an investment fund similar to a mutual fund as well as certificates of deposit. The investments are valued using observable, either directly or indirectly, inputs for substantially the full term of the assets and are classified within Level 2 of the valuation hierarchy. Foreign Exchange Contracts As a result of our global operating activities, we are exposed to risks from changes in foreign currency exchange rates, which may adversely affect our financial condition. To manage our exposures and mitigate the impact of currency fluctuations on our financial results, we hedge our primary transactional exposures through the use of foreign exchange forward and option contracts. The foreign exchange contracts are valued using the market approach based on observable market transactions of forward rates and are classified within Level 2 of the valuation hierarchy. Assets Measured at Fair Value on a Non-recurring Basis Certain assets have been measured at fair value on a nonrecurring basis using significant unobservable inputs (Level 3). NCR measures certain assets, including intangible assets and cost and equity method investments, at fair value on a non-recurring basis. These assets are recognized at fair value when initially valued and when deemed to be impaired. Additionally, NCR reviews the carrying values of investments when events and circumstances warrant and considers all available evidence in evaluating when declines in fair value are other-than-temporary declines. NCR carries equity investments in privately-held companies at cost or at fair value when NCR recognizes an other-than-temporary impairment charge. In the year ended December 31, 2020 we recorded an other-than-temporary impairment charge of $7 million in other income (expense), net within the Consolidated Statement of Operations related to the write-off of an equity method investment. No material impairment charges or non-recurring fair value adjustments were recorded during the year ended December 31, 2019. In the year ended December 31, 2018, we recorded $227 million, which included $146 million impairment of goodwill under our

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss) (AOCI) (Notes)	12 Months Ended
	Dec. 31, 2020
Statement of Financial Position [Abstract]
Accumulated Other Comprehensive Income (Loss) (AOCI)	14. ACCUMULATED OTHER COMPREHENSIVE INCOME Changes in Accumulated Other Comprehensive Income (AOCI) by Component The changes in AOCI for the years ended December 31 are as follows: In millions Currency Translation Adjustments Changes in Employee Benefit Plans Changes in Fair Value of Effective Cash Flow Hedges Total Balance at December 31, 2017 $ (183) $ (15) $ (1) $ (199) Impact of adoption of new accounting standard — 1 — 1 Other comprehensive (loss) income before reclassifications (51) 6 11 (34) Amounts reclassified from AOCI — (6) (8) (14) Net current period other comprehensive (loss) income (51) — 3 (48) Balance at December 31, 2018 $ (234) $ (14) $ 2 $ (246) Other comprehensive (loss) income before reclassifications (26) 10 5 (11) Amounts reclassified from AOCI — (6) (6) (12) Net current period other comprehensive (loss) income (26) 4 (1) (23) Balance at December 31, 2019 $ (260) $ (10) $ 1 $ (269) Other comprehensive (loss) income before reclassifications 15 (11) (7) (3) Amounts reclassified from AOCI — (5) 6 1 Net current period other comprehensive (loss) income 15 (16) (1) (2) Balance at December 31, 2020 $ (245) $ (26) $ — $ (271) Reclassifications Out of AOCI The reclassifications out of AOCI for the years ended December 31 are as follows: For the year ended December 31, 2020 Employee Benefit Plans In millions Actuarial Losses Recognized Amortization of Prior Service Benefit Effective Cash Flow Hedges Total Affected line in Consolidated Statement of Operations: Cost of products $ — $ — $ 7 $ 7 Cost of services (2) (2) — (4) Selling, general and administrative expenses (1) (2) — (3) Research and development expenses — — — — Total before tax $ (3) $ (4) $ 7 $ — Tax expense 1 Total reclassifications, net of tax $ 1 For the year ended December 31, 2019 Employee Benefit Plans In millions Actuarial Losses Recognized Amortization of Prior Service Benefit Effective Cash Flow Hedges Total Affected line in Consolidated Statement of Operations: Cost of products $ — $ — $ (8) $ (8) Cost of services (2) (3) — (5) Selling, general and administrative expenses (1) (3) — (4) Research and development expenses — — — — Total before tax $ (3) $ (6) $ (8) $ (17) Tax expense 5 Total reclassifications, net of tax $ (12) For the year ended December 31, 2018 Employee Benefit Plans In millions Actuarial Losses Recognized Amortization of Prior Service Benefit Effective Cash Flow Hedges Total Affected line in Consolidated Statement of Operations: Cost of products $ — $ — $ (7) $ (7) Cost of services — (5) — (5) Selling, general and administrative expenses — (3) — (3) Research and development expenses — (1) — (1) Total before tax $ — $ (9) $ (7) $ (16) Tax expense 2 Total reclassifications, net of tax $ (14)

Revisions of Previously Issued

Revisions of Previously Issued Financial Statements	12 Months Ended
Revisions of Previously Issued Financial Statements	Dec. 31, 2020
Accounting Changes and Error Corrections [Abstract]
Revisions of Previously Issued Financial Statements	15. REVISIONS OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS During 2020, the Company determined there were errors in its previously issued Consolidated Statements of Cash Flows related to the business activities that commenced upon the acquisition of JetPay Corporation (JetPay) in December 2018. As a result of these errors, the Company's cash, cash equivalents and restricted cash within the Consolidated Statements of Cash Flows for the years ended December 31, 2019 and 2018 and within the Condensed Consolidated Statements of Cash Flows for the interim periods in fiscal 2019 and for the three months ended March 31, 2020, were understated. This also resulted in misclassifications of activities between net cash from operations, investing, and financing activities in each of the periods noted above. More specifically, the Company determined: (i) the funds held for clients represent cash balances that, based upon the Company's intent, are restricted solely for the purposes of satisfying the obligations to remit funds relating to the Company's payroll and payroll tax filing services, which are classified as client fund obligations; and (ii) there are restricted cash balances included within settlement processing assets that are not yet due to the merchants. Such funds are held in a fiduciary duty, and are not available for the Company to use to fund its cash requirements. As a result, (i) the business acquisition purchase price upon the acquisition of JetPay should have been reflected net of these cash balances and (ii) the restricted cash in all periods should have been presented within cash, cash equivalents and restricted cash within the Consolidated Statement of Cash Flows. Additionally, the Company determined the presentation of the cash inflow or outflow from client fund obligations should be reflected within financing activities rather than within operating activities beginning in the third quarter of 2019 and through December 31, 2019. However, in analyzing the impact of the change to include funds held for clients within cash, cash equivalents and restricted cash, it was determined the cash inflow or outflow from client funds obligations was incorrect. The Company assessed the materiality of these errors on the prior period financial statements in accordance with SEC Staff Bulletin No. 99, Materiality , codified in ASC Topic 250, Accounting Changes and Error Corrections . Based on this assessment, the Company determined the impact from these errors was not material to its previously filed annual or interim financial statements. The corrections had no impact on the Company's Consolidated Statements of Income, Consolidated Statements of Comprehensive Income or Consolidated Balance Sheets in previously issued annual or interim financial statements. However, the Company has revised it's previously issued financial statements to correct these errors within the Consolidated Statements of Cash Flows. The revision for the Consolidated Statement of Cash Flows for the year ended December 31, 2019 is reflected within the accompanying Consolidated Financial Statements. The changes reflected in our Consolidated Statement of Cash Flows for the year ended December 31, 2019 are reflected in the tables below: For the year ended December 31, 2019 In millions As Reported Adjustment As Revised Increase (decrease) in other assets and liabilities $ 2 $ 6 $ 8 Net cash provided by (used in) operating activities $ 628 $ 6 $ 634 Net increase (decrease) in client obligations $ (15) $ 15 $ — Net cash provided by (used in) investing activities $ (527) $ 15 $ (512) Net increase (decrease) in client obligations $ 15 $ (30) $ (15) Net cash provided by (used in) financing activities $ (31) $ (30) $ (61) Increase (decrease) in Cash, cash equivalents and restricted cash $ 40 $ (9) $ 31 Cash, cash equivalents and restricted cash at the beginning of the period $ 476 $ 56 $ 532 Cash, cash equivalents and restricted cash at the end of the period $ 516 $ 47 $ 563 Consistent with the revision to the Consolidated Statement of Cash Flows described above, the Company has revised the reconciliation of cash, cash equivalents and restricted cash included in the Consolidated Statement of Cash Flows for all periods that include a revision. The appropriate changes are reflected in our Consolidated Statement of Cash Flows for the year ended December 31, 2019, and the corrections, as reflected in the table below to include funds held for clients and cash included in settlement processing assets within cash, cash equivalents and restricted cash. In millions December 31, 2019 Reconciliation of cash, cash equivalents and restricted cash as shown in the Consolidated Statements of Cash Flows Cash and cash equivalents $ 509 Restricted cash included in other assets 7 Funds held for clients included in other current assets 32 Cash included in settlement processing assets included in other current assets 15 Total cash, cash equivalents and restricted cash $ 563

Supplemental Financial Informat

Supplemental Financial Information	12 Months Ended
Supplemental Financial Information	Dec. 31, 2020
Supplemental Financial Information [Abstract]
Supplemental Financial Information	16. SUPPLEMENTAL FINANCIAL INFORMATION The components of other income (expense), net are summarized as follows for the years ended December 31: In millions 2020 2019 2018 Other income (expense), net Interest income $ 8 $ 5 $ 5 Foreign currency fluctuations and foreign exchange contracts (14) (23) (26) Employee benefit plans (31) (82) 45 Bank-related fees (5) (7) (8) Gain on equity liquidations — 37 — Impairment of equity investment (7) — — Bargain purchase gain on acquisition 7 — — Other, net — (3) — Total other income (expense), net $ (42) $ (73) $ 16 The components of accounts receivable are summarized as follows: In millions December 31, 2020 December 31, 2019 Accounts receivable Trade $ 1,120 $ 1,482 Other 48 52 Accounts receivable, gross 1,168 1,534 Less: allowance for credit losses (51) (44) Total accounts receivable, net $ 1,117 $ 1,490 The components of inventory are summarized as follows: In millions December 31, 2020 December 31, 2019 Inventories Work in process and raw materials $ 133 $ 204 Finished goods 135 184 Service parts 333 396 Total inventories $ 601 $ 784 The components of property, plant and equipment are summarized as follows: In millions December 31, 2020 December 31, 2019 Property, plant and equipment Land and improvements $ 2 $ 5 Buildings and improvements 279 274 Machinery and other equipment 713 715 Finance lease assets 55 38 Property, plant and equipment, gross 1,049 1,032 Less: accumulated depreciation (676) (619) Total property, plant and equipment, net $ 373 $ 413

Quarterly Information (unaudite

Quarterly Information (unaudited)	12 Months Ended
Quarterly Information (unaudited)	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Quarterly Information	17. QUARTERLY INFORMATION (UNAUDITED) In millions, except per share amounts First Second Third Fourth 2020 Total revenue $ 1,503 $ 1,484 $ 1,589 $ 1,631 Gross margin $ 397 $ 372 $ 427 $ 328 Income from operations $ 77 $ 89 $ 118 $ (63) Income (loss) from continuing operations (attributable to NCR) $ 23 $ 64 $ 31 $ (125) Income (loss) from discontinued operations, net of tax $ — $ — $ — $ (72) Net (loss) income attributable to NCR common stockholders $ 17 $ 57 $ 25 $ (209) Income (loss) per share attributable to NCR common stockholders: Income (loss) per common share from continuing operations Basic $ 0.13 $ 0.45 $ 0.19 $ (1.06) Diluted $ 0.13 $ 0.44 $ 0.19 $ (1.06) Net (loss) income per common share Basic $ 0.13 $ 0.45 $ 0.19 $ (1.62) Diluted $ 0.13 $ 0.44 $ 0.19 $ (1.62) 2019 Total revenue $ 1,536 $ 1,710 $ 1,783 $ 1,886 Gross margin $ 411 $ 471 $ 507 $ 532 Income (loss) from operations $ 100 $ 157 $ 172 $ 182 Income (loss) from continuing operations (attributable to NCR) $ 37 $ 88 $ 105 $ 384 Income (loss) from discontinued operations, net of tax $ — $ — $ (15) $ (35) Net income (loss) attributable to NCR common stockholders $ 24 $ 76 $ 11 $ 343 Income (loss) per share attributable to NCR common stockholders: Income (loss) per common share from continuing operations Basic $ 0.20 $ 0.63 $ 0.21 $ 2.96 Diluted $ 0.20 $ 0.58 $ 0.21 $ 2.67 Net income (loss) per common share Basic $ 0.20 $ 0.63 $ 0.09 $ 2.69 Diluted $ 0.20 $ 0.58 $ 0.09 $ 2.43 Operating income for the quarter ended December 31, 2020 was impacted by the following items: • Actuarial losses related to the remeasurement of our pension plan assets and liabilities. The actuarial losses included in pension expense recognized in the quarter ended December 31, 2020 decreased net loss attributable to NCR by $29 million, basic earnings per share from continuing operations by $0.22, and diluted earnings per share from continuing operations by $0.22. • Environmental matters - In the quarter ended December 31, 2020, the loss from discontinued operations was $72 million, net of tax, primarily related to updates in estimates and assumptions for the Fox River and the Kalamazoo River environmental matters. The loss from discontinued operations decreased basic earnings per share by $0.56, and diluted earnings per share by $0.56. • Cost actions on transformation and strategic initiatives In the quarter ended December 31, 2020, the Company recorded charges related to the cost actions on transformation and strategic initiatives which included (i) inventory related charges to write-down inventory to the lower of cost or net realizable value; (ii) the write-off of internal and external use software capitalization projects that are no longer considered strategic and as a result, the projects have been abandoned; (iii) accruals for settlements of certain legacy matters and (iv) severance amounts that were determined to be probable and reasonably estimable in accordance with ASC 712 Employers' Accounting for Postemployment Benefits . The charges increased net loss attributable to NCR by $165 million, basic earnings per share from continuing operations by $1.28, and diluted earnings per share from continuing operations by $1.28. Operating income for the quarter ended December 31, 2019 was impacted by actuarial losses related to the remeasurement of our pension plan assets and liabilities. The actuarial losses included in pension expense recognized in the quarter ended December 31, 2019 decreased net income attributable to NCR by $66 million, basic earnings per share from continuing operations by $0.52, and diluted earnings per share from continuing operations by $0.46. Net income per share in each quarter is computed using the weighted-average number of shares outstanding during that quarter while net income per share for the full year is computed using the weighted-average number of shares outstanding during the year. Thus, the sum of the four quarters’ net income per share will not necessarily equal the full-year net income per share.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
Schedule II - Valuation and Qualifying Accounts	Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Valuation and Qualifying Accounts	Column A Column B Column C Column D Column E Additions Description Balance at Beginning of Period Charged to Costs & Expenses Charged to Other Accounts Deductions Balance at End of Period Year Ended December 31, 2020 Allowance for doubtful accounts $44 $33 $— $26 $51 Deferred tax asset valuation allowance $352 $26 $10 $47 $341 Year Ended December 31, 2019 Allowance for doubtful accounts $31 $24 $— $11 $44 Deferred tax asset valuation allowance $485 $23 $— $156 $352 Year Ended December 31, 2018 Allowance for doubtful accounts $37 $14 $— $20 $31 Deferred tax asset valuation allowance $415 $100 $— $30 $485

Description of Business and S_2

Description of Business and Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Description of Business and Significant Accounting Policies [Abstract]
Use of Estimates [Policy Text Block]	Use of Estimates The preparation of financial statements in accordance with generally accepted accounting principles in the United States (U.S. GAAP) requires management to make estimates and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and revenue and expenses during the periods reported. Although our estimates contemplate current and expected future conditions, as applicable, it is reasonably possible that actual conditions could differ from our expectations, which could materially affect our results of operations and financial position. In particular, a number of estimates have been and will continue to be affected by the ongoing novel coronavirus (COVID-19) pandemic. The severity, magnitude and duration of the COVID-19 pandemic, and the resulting economic consequences, are uncertain, rapidly changing and difficult to predict. As a result, our accounting estimates and assumptions may change over time as a consequence of the effects of the COVID-19 pandemic. Such changes could result in future impairments of goodwill, intangible assets, long-lived assets, incremental credit losses on accounts receivable and decreases in the carrying amount of our tax assets.
Subsequent Events, Policy	Subsequent Events The Company evaluated subsequent events through the date that our Consolidated Financial Statements were issued. Other than the items discussed below and within the notes to the Consolidated Financial Statements, no matters were identified that required adjustment of the Consolidated Financial Statements or additional disclosure. Announced proposed transaction with Cardtronics On January 25, 2021, NCR entered into a definitive agreement with to acquire all outstanding shares of Cardtronics plc for $39.00 per share. The transaction is subject to regulatory approval and customary closing conditions, including approval by Cardtronics' shareholders, and is expected to close in mid-2021. Cardtronics is the world's largest non-bank ATM operator and service provider enabling cash transactions by converting digital currency into physical cash at over 285,000 ATMs across 10 countries in North America, Europe, Asia-Pacific, and Africa. Completed acquisitions of Freshop On January 6, 2021, NCR completed its acquisition of Freshop, Inc., for which we purchased all outstanding shares and as a result Freshop will become a wholly-owned subsidiary of NCR in the first quarter of 2021. Freshop is a leading provider of digital online ordering platforms which provides retailers the ability to quickly deploy "buy-online, pickup-in-store" capabilities. Completed acquisition of Terafina On February 5, 2021, NCR completed its acquisition of Terafina, Inc., for which we purchased all outstanding shares and as a result Terafina will become a wholly-owned subsidiary of NCR in the first quarter of 2021. Terafina is a leading solution provider for customer account opening and onboarding across digital, branch and call center channels.
Basis of Consolidation [Policy Text Block]	Basis of Consolidation The consolidated financial statements include the accounts of NCR and its majority-owned subsidiaries. Long-term investments in affiliated companies in which NCR owns between 20% and 50%, and therefore, exercises significant influence, but which it does not control, are accounted for using the equity method. Investments in which NCR does not exercise significant influence (generally, when NCR has an investment of less than 20% and no significant influence, such as representation on the investee’s board of directors) are accounted for using the cost method. All significant inter-company transactions and accounts have been eliminated. In addition, the Company is required to determine whether it is the primary beneficiary of economic income or losses that may be generated by variable interest entities in which the Company has such an interest. In circumstances where the Company determined it is the primary beneficiary, consolidation of that entity would be required. For the periods presented, no variable interest entities have been consolidated.
Revenue Recognition [Policy Text Block]	The Company records revenue, net of sales tax, when the following five steps have been completed: • Identification of the contract(s) with a customer • Identification of the performance obligation(s) in the contract • Determination of the transaction price • Allocation of the transaction price to the performance obligations in the contract • Recognition of revenue when, or as, we satisfy performance obligations The Company records revenue when, or as, performance obligations are satisfied by transferring control of a promised good or service to the customer, in an amount that reflects the consideration we expect to be entitled to in exchange for products and services. The Company evaluates the transfer of control primarily from the customer’s perspective where the customer has the ability to direct the use of and obtain substantially all of the remaining benefits from that good or service. NCR enters contracts that include multiple distinct performance obligations, including hardware, software, professional consulting services, installation services and maintenance support services. A promise to a customer is considered distinct when the product or service is both capable of being distinct, and distinct in the context of the contract. For these arrangements, the Company allocates the transaction price, at contract inception, to each distinct performance obligation on a relative standalone selling price basis. The primary method used to estimate standalone selling price is the price that the Company charges for that good or service when the Company sells it separately in similar circumstances to similar customers. For hardware products, control is generally transferred when the customer has the ability to direct the use of and obtain substantially all of the remaining benefits of the products, which generally coincides with when the customer has assumed title and risk of loss of the goods sold. In certain instances, customer acceptance is required prior to the passage of title and risk of loss of the delivered products. In such cases, revenue is not recognized until customer acceptance is obtained. Delivery, acceptance, and transfer of title and risk of loss generally occur in the same reporting period. NCR's customers may request that delivery and passage of title and risk of loss occur on a bill and hold basis. For the period ending December 31, 2020 and 2019, the revenue recognized from bill and hold transactions approximated 1% of total revenue. Hardware products may also be provided as a service when included in a package sold with software and services. In these instances, revenue is recognized in accordance with the lease accounting standard and depending on the terms and conditions included in the contract may be either sales-type leases or operating leases. Revenue from hardware sales-type leases is recognized at the beginning of the lease term and revenue from operating leases is recognized on a straight-line basis over the term of the contract. Software products may be sold as perpetual licenses, term-based licenses, cloud-enabled and software as a service (SaaS). Perpetual license revenue is recognized at a point in time when control transfers to the customer and reported within product revenue. Control is typically transferred when the customer takes possession of, or has access to, the software. Term-based license revenue is recognized at a point in time upon the commencement of the committed term of the contract, concurrent with the possession of the license, and reported within product revenue. The committed term of the contract is typically one month to one year due to customer termination rights. If the amount of consideration the Company expects to be paid in exchange for the licenses depends on customer usage, revenue is recognized when the usage occurs. Software as a service primarily consists of fees to provide our customers access to our platform and cloud-based applications for a specified contract term. Revenue from SaaS contracts is recognized as variable consideration directly allocated based on customer usage or on a ratable basis over the contract term beginning on the date that our service is made available to the customer. SaaS is reported as part of our services revenue. The Company sells some product solutions that include a combination of cloud-enabled and on-premise term-based software licenses for a specified contract term. Significant judgment is required to determine if the services and products represent distinct promises to the customer or if they should be combined into one performance obligation. When they are combined into one performance obligation, revenue is recognized ratably over the contract term for which the service is provided. In addition to SaaS, our services revenue includes professional consulting, installation and maintenance support. Professional consulting primarily consists of software implementation, integration, customization and optimization services. Revenue from professional consulting contracts is recognized when the services are completed or customer acceptance of the service is received, if required. For installation and maintenance, control is transferred as the services are provided or ratably over the service period, or, if applicable, after customer acceptance of the service. We apply the ‘as invoiced’ practical expedient, for performance obligations satisfied over time, if the amount we may invoice corresponds directly with the value to the customer of the Company’s performance to date. This expedient permits us to recognize revenue in the amount we invoice the customer. The nature of our arrangements gives rise to several types of variable consideration including service level agreement credits, stock rotation rights, trade-in credits and volume-based rebates. At contract inception, we include this variable consideration in our transaction price when there is a basis to reasonably estimate the amount of the fee and it is probable there will not be a significant reversal. These estimates are generally made using the expected value method and a portfolio approach, based on historical experience, anticipated performance and our best judgment at the time. These estimates are reassessed at each reporting date. Because of our confidence in estimating these amounts, they are included in the transaction price of our contracts and the associated remaining performance obligations. Payment terms with our customers are established based on industry and regional practices and generally do not exceed 30 days. We do not typically include extended payment terms in our contracts with customers. As a practical expedient, we do not adjust the promised amount of consideration for the effects of a significant financing component when we expect, at contract inception, that the period between our transfer of a promised product or service to a customer and when the customer pays for that product or service will be one year or less. If the period between transfer of the promised product or service and payment is more than one year, the Company analyzes whether a significant financing component is present. If so, the Company adjusts the total consideration to reflect the significant financing component. The Company also does not adjust the transaction price for taxes collected from customers, as those amounts are netted against amounts remitted to government authorities. We account for shipping and handling activities related to contracts with customers as costs to fulfill our promise to transfer the associated products, rather than as a separate performance obligation. Accordingly, we record amounts billed for shipping and handling costs as a component of net product sales, and classify such costs as a component of cost of products. In addition to the standard product warranty, the Company periodically offers extended warranties to its customers in the form of product maintenance services. For maintenance contracts that have been combined with product contracts under the revenue guidance, the Company defers revenue at an amount based on the relative standalone selling price allocation, and recognizes the deferred revenue over the service term. For non-combined maintenance contracts, NCR defers the stated amount of the separately priced service and recognizes the deferred revenue over the service term. Remaining Performance Obligations Remaining performance obligations represent the transaction price of orders for which products have not been delivered or services have not been performed. As of December 31, 2020, the aggregate amount of the transaction price allocated to remaining performance obligations was approximately $3.6 billion. The Company expects to recognize revenue on approximately three-quarters of the remaining performance obligations over the next 12 months, with the remainder recognized thereafter. The majority of our professional services are expected to be recognized over the next 12 months but this is contingent upon a number of factors, including customers’ needs and schedules. The Company has made two elections which affect the value of remaining performance obligations described above. We do not disclose remaining performance obligations for SaaS contracts where variable consideration is directly allocated based on usage or when the original expected length is one year or less.
Warranty and Sales Returns [Policy Text Block]	Warranty and Sales Returns Provisions for product warranties and sales returns and allowances are recorded in the period in which NCR becomes obligated to honor the related right, which generally is the period in which the related product revenue is recognized. The Company accrues warranty reserves based upon historical factors such as labor rates, average repair time, travel time, number of service calls per machine and cost of replacement parts. When a sale is consummated, a warranty reserve is recorded based upon the estimated cost to provide the service over the warranty period. The Company accrues sales returns and allowances using percentages of revenue to reflect the Company’s historical average of sales return claims.
Research and Development Costs [Policy Text Block]	Research and Development Costs Research and development costs primarily include payroll and benefit-related costs, contractor fees, facilities costs, infrastructure costs, and administrative expenses directly related to research and development support and are expensed as incurred, except certain software development costs are capitalized after technological feasibility of the software is established.
Advertising [Policy Text Block]	Advertising Advertising costs are recognized in selling, general and administrative expenses when incurred.
Stock Compensation [Policy Text Block]	Stock-based Compensation Stock-based compensation represents the costs related to share-based awards granted to employees and non-employee directors. The Company’s outstanding stock-based compensation awards are classified as equity. The Company measures stock-based compensation cost at the grant date, based on the estimated fair value of the award and recognizes the cost over the requisite service period. See Note 7, "Stock Compensation Plans" for further information on NCR’s stock-based compensation plans.
Income Taxes [Policy Text Block]	Income Taxes Income tax expense is provided based on income before income taxes. Deferred income taxes reflect the impact of temporary differences between assets and liabilities recognized for financial reporting purposes and such amounts recognized for tax purposes. These deferred taxes are determined based on the enacted tax rates expected to apply in the periods in which the deferred assets or liabilities are expected to be settled or realized. NCR records valuation allowances related to its deferred income tax assets when it is more likely than not that some portion or all of the deferred income tax assets will not be realized. The Company recognizes the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the consolidated financial statements from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being sustained upon examination by authorities. Interest and penalties related to uncertain tax positions are recognized as part of the provision for income taxes and are accrued beginning in the period that such interest and penalties would be applicable under relevant tax law and until such time that the related tax benefits are recognized.
Earnings Per Share	Basic earnings per share (EPS) is calculated by dividing net income, less any dividends, accretion or decretion, redemption or induced conversion on our Series A Convertible Preferred Stock, by the weighted average number of shares outstanding during the reported period. In computing diluted EPS, we evaluate and reflect the maximum potential dilution, for each issue or series of issues of potential common shares in sequence from the most dilutive to the least dilutive. We adjust the numerator used in the basic EPS computation, subject to anti-dilution requirements, to add back the dividends (declared or cumulative undeclared) applicable to the Series A Convertible Preferred Stock. Such add-back would also include any adjustments to equity in the period to accrete the Series A Convertible Preferred Stock to its redemption price, or recorded upon a redemption or induced conversion. We adjust the denominator used in the basic EPS computation, subject to anti-dilution requirements, to include the dilution from potential shares resulting from the issuance of the Series A Convertible Preferred Stock, restricted stock units, and stock options. The holders of Series A Convertible Preferred Stock and unvested restricted stock units do not have nonforfeitable rights to common stock dividends or common stock dividend equivalents. Accordingly, the Series A Convertible Preferred Stock and unvested restricted stock units do not qualify as participating securities. See Note 7, "Stock Compensation Plans" for share information on NCR’s stock compensation plans.
Cash and Cash Equivalents [Policy Text Block]	Cash and Cash Equivalents All short-term, highly liquid investments having original maturities of three months or less, including time deposits, are considered to be cash equivalents. The Company has restricted cash on deposit with a bank as collateral for letters of credit, funds held for clients as well as cash included in settlement processing assets. The reconciliation of cash, cash equivalents and restricted cash in the Consolidated Statements of Cash Flows is as follows:
Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block]	Accounts Receivable, net Accounts receivable, net includes amounts billed and currently due from customers as well as amounts unbilled that typically result from sales under contracts where revenue recognized exceeds the amount billed to the customer and where the Company has an unconditional right to consideration. The amounts due are stated at their net estimated realizable value. Allowance for Credit Losses on Accounts Receivable Allowances for credit losses on accounts receivable are recognized when reasonable and supportable forecasts affect the expected collectability. This requires us to make our best estimate of the current expected losses inherent in our accounts receivable at each balance sheet date. These estimates require consideration of historical loss experience, adjusted for current conditions, forward looking indicators, trends in customer payment frequency and judgments about the probable effects of relevant observable data, including present and future economic conditions and the financial health of specific customers and market sectors. This policy is applied consistently among all of our operating segments.
Inventories [Policy Text Block]	Inventories Inventories are stated at the lower of cost or net realizable value, using the average cost method. Cost includes materials, labor and manufacturing overhead related to the purchase and production of inventories. Service parts are included in inventories and include reworkable and non-reworkable service parts. The Company regularly reviews inventory quantities on hand, future purchase commitments with suppliers and the estimated utility of inventory. If the review indicates a reduction in utility below carrying value, inventory is reduced to a new cost basis. Excess and obsolete write-offs are established based on forecasted usage, orders, technological obsolescence and inventory aging.
Capitalized Software [Policy Text Block]	Capitalized Software Certain direct development costs associated with internal-use software are capitalized within other assets and amortized over the estimated useful lives of the resulting software. NCR typically amortizes capitalized internal-use software on a straight-line basis over four
Software to be Sold, Leased, or Otherwise Marketed, Policy [Policy Text Block]	Costs incurred for the development of software that will be sold, leased or otherwise marketed are capitalized when technological feasibility has been established. These costs are included within other assets and are amortized on a sum-of-the-years' digits or straight-line basis over the estimated useful lives ranging from three
Goodwill and Other Intangible Assets [Policy Text Block]	Goodwill and Other Intangible Assets Goodwill represents the excess of purchase price over the fair value of the net tangible and identifiable intangible assets of businesses acquired. Goodwill is tested at the reporting unit level for impairment on an annual basis during the fourth quarter or more frequently if certain events occur indicating that the carrying value of goodwill may be impaired. A significant amount of judgment is involved in determining if an indicator of impairment has occurred. Such indicators may include a decline in expected cash flows, a significant adverse change in legal factors or in the business climate, a decision to sell a business, unanticipated competition, or slower growth rates, among others. In the evaluation of goodwill for impairment, we have the option to perform a qualitative assessment to determine whether further impairment testing is necessary or to perform a quantitative assessment by comparing the fair value of a reporting unit to its carrying amount, including goodwill. Under the qualitative assessment, an entity is not required to calculate the fair value of a reporting unit unless the entity determines that it is more likely than not that its fair value is less than its carrying amount. If under the quantitative assessment the fair value of a reporting unit is less than its carrying amount, then the amount of the impairment loss, if any, is determined based on the amount by which the carrying amount exceeds the fair value up to the total value of goodwill assigned to the reporting unit. Fair values of the reporting units are estimated using a weighted methodology considering the output from both the income and market approaches. The income approach incorporates the use of discounted cash flow (DCF) analysis. A number of significant assumptions and estimates are involved in the application of the DCF model to forecast operating cash flows, including revenue growth, operating income margin and discount rate. Several of these assumptions vary among reporting units. The cash flow forecasts are generally based on approved strategic operating plans. The market approach is performed using the Guideline Public Companies (GPC) method which is based on earnings multiple data. We perform a reconciliation between our market capitalization and our estimate of the aggregate fair value of the reporting units, including consideration of a control premium. Refer to Note 2, "Goodwill and Purchased Intangible Assets" for further discussion. Acquired intangible assets other than goodwill are amortized over their weighted average amortization period unless they are determined to be indefinite. Acquired intangible assets are carried at cost, less accumulated amortization. For intangible assets
Property, Plant and Equipment [Policy Text Block]	Property, Plant and Equipment Property, plant and equipment and leasehold improvements are stated at cost less accumulated depreciation. Depreciation is computed over the estimated useful lives of the related assets primarily on a straight-line basis. Machinery and other equipment are depreciated over 3 to 20 years and buildings over 25 to 45 years. Leasehold improvements are depreciated over the life of the lease or the asset, whichever is shorter. Assets classified as held for sale are not depreciated. Upon retirement or disposition of property, plant and equipment, the related cost and accumulated depreciation or amortization are removed from the Company’s accounts, and a gain or loss is recorded. Depreciation expense related to property, plant and equipment was $88 million, $79 million, and $81 million for the years ended December 31, 2020, 2019, and 2018, respectively.
Valuation of Long-Lived Assets [Policy Text Block]	Valuation of Long-Lived Assets Long-lived assets such as property, plant and equipment and finite-lived intangible assets are reviewed for impairment when events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable or in the period in which the held for sale criteria are met. For assets held and used, this analysis consists of comparing the asset’s carrying value to the expected future cash flows to be generated from the asset on an undiscounted basis. If the carrying amount of the asset is determined not to be recoverable, a write-down to fair value is recorded. Fair values are determined based on quoted market values, discounted cash flows, or external appraisals, as applicable. Long-lived assets are reviewed for impairment at the individual asset or the asset group level for which the lowest level of independent cash flows can be identified. Refer to Note 2, "Goodwill and Purchased Intangible Assets" for further discussion. Leasing We adopted the new leasing standard using the modified retrospective approach with an effective date of January 1, 2019. Periods prior to 2019 were not recast under the new standard and, therefore, those amounts are not presented in Note 10, "Leasing". Lessee We lease property, vehicles and equipment under operating and financing leases. For leases with terms greater than 12 months, we record the related asset and obligation at the present value of lease payments over the term. We determine the lease term by assuming the exercise of renewal options that are reasonably certain. Leases with a lease term 12 months or less at inception are not recorded on our Consolidated Balance Sheet and are expensed on a straight-line basis over the lease term in our Consolidated Statement of Operations. Our leases may include rental escalation clauses, renewal options and/or termination options that are factored into our determination of lease payments when appropriate. When available, we use the rate implicit in the lease to discount lease payments to present value; however, most of our leases do not provide a readily determinable implicit rate. Therefore, we must estimate our incremental borrowing rate to discount the lease payments based on information available at lease commencement. Our incremental borrowing rate is based on a credit-adjusted risk-free rate at commencement date, which best approximates a secured rate over a similar term of lease. Additionally, we do not separate lease and non-lease components for any asset classes, except for those leases embedded in certain service arrangements. Fixed and in-substance fixed payments are included in the recognition of the operating and financing assets and lease liabilities, however, variable lease payments, other than those based on a rate or index, are recognized in the Consolidated Statements of Operations in the period in which the obligation for those payments is incurred. The Company’s variable lease payments generally relate to payments tied to various indices, non-lease components and payments above a contractual minimum fixed payment. Lessor We have various arrangements for certain point-of-sale equipment under which we are the lessor. These leases meet the criteria for operating lease classification. Lease income associated with these leases is not material.
Pension, Postretirement and Postemployment Benefits [Policy Text Block]	Pension, Postretirement and Postemployment Benefits NCR has significant pension, postretirement and postemployment benefit costs, which are developed from actuarial valuations. Actuarial assumptions are established to anticipate future events and are used in calculating the expense and liabilities relating to these plans. These factors include assumptions the Company makes about interest rates, expected investment return on plan assets, rate of increase in healthcare costs, involuntary turnover rates, and rates of future compensation increases. In addition, NCR also uses subjective factors, such as withdrawal rates and mortality rates to develop the Company’s valuations. NCR generally reviews and updates these assumptions on an annual basis. NCR is required to consider current market conditions, including changes in interest rates, in making these assumptions. The actuarial assumptions that NCR uses may differ materially from actual results due to changing market and economic conditions, higher or lower withdrawal rates, or longer or shorter life spans of participants. These differences may result in a significant impact to the amount of pension, postretirement or postemployment benefits expense, and the related assets and liabilities, the Company has recorded or may record.
Environmental and Legal Contingencies [Policy Text Block]	Environmental and Legal Contingencies In the normal course of business, NCR is subject to various proceedings, lawsuits, claims and other matters, including, for example, those that relate to the environment and health and safety, labor and employment, employee benefits, import/export compliance, intellectual property, data privacy and security, product liability, commercial disputes and regulatory compliance, among others. Additionally, NCR is subject to diverse and complex laws, regulations, and standards including those relating to corporate governance, public disclosure and reporting, environmental safety and the discharge of materials into the environment, product safety, import and export compliance, data privacy and security, antitrust and competition, government contracting, anti-corruption, and labor and human resources, which are rapidly changing and subject to many possible changes in the future. Compliance with these laws and regulations, including changes in accounting standards, taxation requirements, and federal securities laws among others, may create a substantial burden on, and substantially increase the costs to NCR or could have an impact on NCR’s future operating results. NCR believes that the amounts provided in its Consolidated Financial Statements are adequate in light of the probable and estimable liabilities. However, there can be no assurances that the actual amounts required to satisfy alleged liabilities from various lawsuits, claims, legal proceedings and other matters, including the Fox River and Kalamazoo River environmental matters discussed in Note 9, "Commitments and Contingencies" and to comply with applicable laws and regulations, will not exceed the amounts reflected in NCR’s Consolidated Financial Statements or will not have a material adverse effect on the Company’s consolidated results of operations, financial condition or cash flows. Any costs that may be incurred in excess of those amounts provided as of December 31, 2020 cannot currently be reasonably determined or are not currently considered probable.
Foreign Currency [Policy Text Block]	Foreign Currency For many NCR international operations, the local currency is designated as the functional currency. Accordingly, assets and liabilities are translated into U.S. Dollars at year-end exchange rates, and revenue and expenses are translated at average exchange rates prevailing during the year. Currency translation adjustments from local functional currency countries resulting from fluctuations in exchange rates are recorded in other comprehensive income. Remeasurement adjustments are recorded in other income (expense), net.
Derivative Instruments [Policy Text Block]	Derivative Instruments In the normal course of business, NCR enters into various financial instruments, including derivative financial instruments. The Company accounts for derivatives as either assets or liabilities in the Consolidated Balance Sheets at fair value and recognizes the resulting gains or losses as adjustments to earnings or other comprehensive income. For derivative instruments that are designated and qualify as hedging instruments, the Company formally documents the relationship between hedging instruments and hedged items, as well as the risk management objective and strategy for undertaking various hedge transactions. Hedging activities are transacted only with highly rated institutions, reducing exposure to credit risk in the event of nonperformance. Additionally, the Company completes assessments related to the risk of counterparty nonperformance on a regular basis. The accounting for changes in fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship, and further, on the type of hedging relationship. For those derivative instruments that are designated and qualify as hedging instruments, the Company has designated the hedging instrument, based on the exposure being hedged, as a fair value hedge, a cash flow hedge or a hedge of a net investment in a foreign operation. For derivative instruments designated as fair value hedges, the effective portion of the hedge is recorded as an offset to the change in the fair value of the hedged item, and the ineffective portion of the hedge, if any, is recorded in the Consolidated Statement of Operations. For derivative instruments designated as cash flow hedges and determined to be highly effective, the gains or losses are deferred in other comprehensive income and recognized in the determination of income as adjustments of carrying amounts when the underlying hedged transaction is realized, canceled or otherwise terminated. When hedging certain foreign currency transactions of a long-term investment nature (net investments in foreign operations) gains and losses are recorded in the currency translation adjustment component of accumulated other comprehensive loss. Gains and losses on foreign exchange contracts that are not used to hedge currency transactions of a long-term investment nature, or that are not designated as cash flow or fair value hedges, are recognized in other (expense), net as exchange rates change.
Fair Value of Assets and Liabilities [Policy Text Block]	Fair Value of Assets and Liabilities Fair value is defined as an exit price, representing an amount that would be received to sell an asset or the amount paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, the guidance prioritizes the inputs used to measure fair value into the following three-tier fair value hierarchy: • Level 1: Unadjusted quoted prices in active markets for identical assets or liabilities • Level 2: Unadjusted quoted prices in active markets for similar assets or liabilities, unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active or inputs, other than quoted prices in active markets, that are observable either directly or indirectly • Level 3: Unobservable inputs for which there is little or no market data Assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurements. The Company reviews the fair value hierarchy classification on a quarterly basis. Changes to the observability of valuation inputs may result in a reclassification of levels for certain securities within the fair value hierarchy. NCR measures its financial assets and financial liabilities at fair value based on one or more of the following three valuation techniques: • Market approach: Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. • Cost approach: Amount that would be required to replace the service capacity of an asset (replacement cost). • Income approach: Techniques to convert future amounts to a single present amount based upon market expectations (including present value techniques, option pricing and excess earnings models).
New Accounting Pronouncements, Policy [Policy Text Block]	Issued In August 2020, the Financial Accounting Standards Board ("FASB") issued an accounting standards update with new guidance for convertible preferred stock, which eliminates considerations related to the beneficial conversion feature model. The standard also requires an average stock price when calculating the denominator for diluted earnings per share to be used for stock units where the settlement of the number of shares is based on the stock price. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021. Early adoption is permitted no earlier than fiscal years beginning after December 15, 2020 and interim periods within those fiscal years. The adoption of this accounting standards update is not expected to have a material effect on the Company's net income, cash flows, earnings per share or financial condition. Adopted In June 2016, the FASB issued an accounting standards update with new guidance on accounting for credit losses on financial instruments. The new guidance includes an impairment model for estimating credit losses that is based on expected losses, rather than incurred losses. This accounting standards update is effective prospectively for fiscal years and interim periods beginning after December 15, 2019, with early adoption permitted. The adoption of this accounting standards update did not have a material effect on the Company's net income, cash flows or financial condition. In August 2018, the FASB issued an accounting standards update with new guidance on fair value measurement disclosure requirements that requires the disclosure of additions to and transfers into and out of Level 3 of the fair value hierarchy. This accounting standards update also requires disclosure about the uncertainty in measurement as of the reporting date. The new standard became effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019 with early adoption permitted. The adoption of this accounting standards update did not have a material impact on the financial statement disclosures. In August 2018, the FASB issued an accounting standards update related to accounting for implementation costs incurred in a cloud computing arrangement that is also a service contract. If a cloud computing arrangement also includes an internal-use software, an intangible asset is recognized, and a liability is recognized for any payments related to the software license. However, if a cloud computing arrangement does not include a software license, the entity should account for the arrangement as a service contract and any fees associated with the service are expensed as incurred. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019, with early adoption permitted. The adoption of this accounting standards update did not have a material effect on the Company's net income, cash flows or financial condition. In December 2019, the FASB issued an accounting standards update with new guidance that removes certain exceptions for recognizing deferred taxes for investments, performing intraperiod allocation and calculating income taxes in interim periods. This accounting standards update also adds guidance to reduce complexity in certain areas, including recognizing measures for the accounting for income taxes. This accounting standards update is effective for fiscal years and interim periods beginning after December 15, 2020, with early adoption permitted. The adoption of this accounting standards update did not have a material impact on the Company's net income, cash flows or financial condition.

Description of Business and S_3

Description of Business and Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Description of Business and Significant Accounting Policies [Abstract]
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]	The following table presents the net contract asset and contract liability balances: In millions Location in the Consolidated Balance Sheet December 31, 2020 December 31, 2019 Current portion of contract assets Other current assets $ — $ 9 Current portion of contract liabilities Contract liabilities $ 507 $ 502 Non-current portion of contract liabilities Other liabilities $ 80 $ 81 During the twelve months ended December 31, 2020 and 2019, the Company recognized $407 million and $341 million, respectively, in revenue that was included in contract liabilities as of January 1, 2019 and 2018, respectively.
Schedule of Capitalized Computer Software [Table Text Block]	The following table identifies the activity relating to total capitalized software: In millions 2020 2019 2018 Beginning balance as of January 1 $ 413 $ 325 $ 366 Capitalization 232 238 170 Amortization (171) (148) (160) Impairment (32) (2) (51) Ending balance as of December 31 $ 442 $ 413 $ 325 During the year ended December 31, 2020 and 2018, we recorded the write-off of certain internal- and external-use software capitalization projects that are no longer considered strategic and as a result, the projects have been abandoned.
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The components of basic earnings (loss) per share are as follows: In millions, except per share amounts Year ended December 31 2020 2019 2018 Numerator: Income (loss) from continuing operations $ (7) $ 614 $ (36) Series A convertible preferred stock dividends (31) (110) (49) Net income (loss) from continuing operations attributable to NCR common stockholders (38) 504 (85) Loss from discontinued operations, net of tax (72) (50) (52) Net income (loss) attributable to NCR common stockholders $ (110) $ 454 $ (137) Denominator: Basic weighted average number of shares outstanding 128.4 122.1 118.4 Basic earnings (loss) per share: From continuing operations $ (0.30) $ 4.13 $ (0.72) From discontinued operations (0.56) (0.41) (0.44) Total basic earnings (loss) per share $ (0.86) $ 3.72 $ (1.16) The components of diluted earnings (loss) per share are as follows: In millions, except per share amounts Year ended December 31 2020 2019 2018 Numerator: Income (loss) from continuing operations $ (7) $ 614 $ (36) Series A convertible preferred stock dividends (31) (76) (49) Net income (loss) from continuing operations attributable to NCR common stockholders (38) 538 (85) Loss from discontinued operations, net of tax (72) (50) (52) Net income (loss) attributable to NCR common stockholders $ (110) $ 488 $ (137) Denominator: Basic weighted average number of shares outstanding 128.4 122.1 118.4 Dilutive effect of as-if Series A Convertible Preferred Stock — 19.5 — Dilutive effect of employee stock options and restricted stock units — 3.6 — Weighted average diluted shares 128.4 145.2 118.4 Diluted earnings (loss) per share: From continuing operations $ (0.30) $ 3.71 $ (0.72) From discontinued operations (0.56) (0.35) (0.44) Total diluted earnings (loss) per share $ (0.86) $ 3.36 $ (1.16) For 2020, due to the net loss attributable to NCR common stockholders, potential common shares that would cause dilution, such as Series A Convertible Preferred Stock, restricted stock units and stock options, have been excluded from the diluted share count because their effect would been anti-dilutive. The weighted average outstanding shares of common stock were not adjusted by 9.1 million for the as-if converted Series A Convertible Preferred Stock because the effect would be anti-dilutive. Refer to Note 11, "Series A Convertible Preferred Stock" for additional discussion related to the transaction impacting the Series A Convertible Preferred Stock. Additionally, for 2020, weighted average restricted stock units and stock options of 11.2 million were excluded from the diluted share count because their effect would have been anti-dilutive. For 2019, it is more dilutive to assume the portion of the Series A Convertible Preferred Stock that was redeemed was not converted to common stock. Therefore, weighted average outstanding shares of common stock were not adjusted by 5.7 million for the as-if converted Series A Convertible Preferred Stock that was redeemed because the effect would be anti-dilutive. Refer to Note 11, "Series A Convertible Preferred Stock" for additional discussion related to the transaction impacting the Series A Convertible Preferred Stock. Additionally, for 2019, weighted average restricted stock units and stock options of 4.3 million were excluded from the diluted share count because their effect would have been anti-dilutive.
Reconciliation of cash, cash equivalents, and restricted cash	In millions Balance Sheet Location December 31, 2020 December 31, 2019 December 31, 2018 Cash and cash equivalents Cash and cash equivalents $ 338 $ 509 $ 464 Restricted cash Other assets 9 7 12 Funds held for client Other current assets 44 32 46 Cash included in settlement processing assets Other current assets 15 15 10 Total cash, cash equivalents and restricted cash $ 406 $ 563 $ 532 In millions December 31, 2019 Reconciliation of cash, cash equivalents and restricted cash as shown in the Consolidated Statements of Cash Flows Cash and cash equivalents $ 509 Restricted cash included in other assets 7 Funds held for clients included in other current assets 32 Cash included in settlement processing assets included in other current assets 15 Total cash, cash equivalents and restricted cash $ 563

Goodwill and Purchased Intang_2

Goodwill and Purchased Intangible Assets (Tables)	12 Months Ended
Goodwill and Purchased Intangible Assets (Tables)	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The carrying amounts of goodwill by segment as of December 31, 2020, 2019, and 2018 are included in the tables below. Foreign currency fluctuations are included within other adjustments . December 31, 2019 December 31, 2020 In millions Goodwill Accumulated Impairment Losses Total Additions Impairment Other Goodwill Accumulated Impairment Losses Total Banking $ 1,774 $ (101) $ 1,673 $ — $ — $ (2) $ 1,772 $ (101) $ 1,671 Retail 638 (34) 604 — — 5 643 (34) 609 Hospitality 402 (23) 379 1 — 1 404 (23) 381 T&T 187 (11) 176 — — — 187 (11) 176 Total goodwill $ 3,001 $ (169) $ 2,832 $ 1 $ — $ 4 $ 3,006 $ (169) $ 2,837 December 31, 2018 December 31, 2019 In millions Goodwill Accumulated Impairment Losses Total Additions Impairment Other Goodwill Accumulated Impairment Losses Total Banking $ 1,718 $ (101) $ 1,617 $ 54 $ — $ 2 $ 1,774 $ (101) $ 1,673 Retail 571 (34) 537 67 — — 638 (34) 604 Hospitality 385 (23) 362 17 — — 402 (23) 379 T&T 187 (11) 176 — — — 187 (11) 176 Total goodwill $ 2,861 $ (169) $ 2,692 $ 138 $ — $ 2 $ 3,001 $ (169) $ 2,832
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	NCR's purchased intangible assets, reported in intangibles, net in the Consolidated Balance Sheets, were specifically identified when acquired, and are deemed to have finite lives. The gross carrying amount and accumulated amortization for NCR’s identifiable intangible assets were as set forth in the table below. Amortization December 31, 2020 December 31, 2019 In millions Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Identifiable intangible assets Reseller & customer relationships 1 - 20 $ 740 $ (324) $ 735 $ (270) Intellectual property 2 - 8 531 (418) 529 (397) Customer contracts 8 89 (89) 89 (89) Tradenames 1 - 10 77 (74) 78 (68) Total identifiable intangible assets $ 1,437 $ (905) $ 1,431 $ (824)
Schedule of Expected Amortization Expense	The aggregate amortization expense (actual and estimated) for identifiable intangible assets for the following periods is: For the year ended December 31, 2020 For the years ended December 31 (estimated) In millions 2021 2022 2023 2024 2025 Amortization expense $ 81 $ 72 $ 68 $ 66 $ 59 $ 51

Business Combinations and Div_2

Business Combinations and Divestitures (Tables)	12 Months Ended
Business Combinations and Divestitures (Tables)	Dec. 31, 2020
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business Acquisition, Pro Forma Information [Table Text Block]	The unaudited pro forma consolidated results of operations for the year ended December 31, 2018, as if the acquisition had occurred on January 1, 2017, is as follows: In millions 2018 Revenue $ 6,468 Net income attributable to NCR $ (46)
D3 Technology [Member]
Business Acquisition [Line Items]
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	The final allocation of the purchase price for D3 is as follows: In millions Fair Value Cash acquired $ 9 Tangible assets acquired 6 Acquired intangible assets other than goodwill 20 Acquired goodwill 51 Deferred tax assets 6 Liabilities assumed (8) Total purchase consideration $ 84
Acquired Finite-Lived Intangible Assets [Line Items]
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]	The following table sets forth the components of the intangible assets acquired as of the acquisition date: Fair Value Weighted Average Amortization Period (1) (In millions) (In years) Direct customer relationships $ 7 11 Technology - Software 11 5 Tradenames 2 7 Total acquired intangible assets $ 20 (1) Determination of the weighted average period of the individual categories of intangible assets was based on the nature of applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with definite lives is recognized over the period of time the assets are expected to contribute to future cash flows.
Zynstra Ltd. [Member]
Business Acquisition [Line Items]
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	The final allocation of the purchase price for Zynstra is as follows: In millions Fair Value Cash acquired $ 1 Tangible assets acquired 1 Acquired intangible assets other than goodwill 76 Acquired goodwill 66 Deferred tax liability (9) Liabilities assumed (1) Total purchase consideration $ 134
Acquired Finite-Lived Intangible Assets [Line Items]
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]	The following table sets forth the components of the intangible assets acquired as of the acquisition date: Fair Value Weighted Average Amortization Period (1) (In millions) (In years) Technology - Software $ 75 8 Tradenames 1 1 Total acquired intangible assets $ 76 (1) Determination of the weighted average period of the individual categories of intangible assets was based on the nature of applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with definite lives is recognized over the period of time the assets are expected to contribute to future cash flows.
JetPay [Member]
Business Acquisition [Line Items]
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	The final allocation of the purchase price for JetPay is as follows: In millions Fair Value Cash acquired $ 50 Tangible assets acquired 30 Acquired intangible assets other than goodwill 104 Acquired goodwill 96 Deferred tax liabilities (11) Liabilities assumed (76) Total purchase consideration $ 193
Acquired Finite-Lived Intangible Assets [Line Items]
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]	The following table sets forth the components of the intangible assets acquired as of the acquisition date: Fair Value Weighted Average Amortization Period (1) (In millions) (In years) Direct customer relationships $ 64 17 Technology - Software 39 9 Tradenames 1 1 Total acquired intangible assets $ 104 (1) Determination of the weighted average period of the individual categories of intangible assets was based on the nature of applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with definite lives is recognized over the period of time the assets are expected to contribute to future cash flows.
Business Acquisition, OKI Brasil [Member]
Business Acquisition [Line Items]
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	The fair value of consideration transferred to acquire Origami was allocated to the identifiable assets and liabilities assumed based upon their estimated fair values as of the date of acquisition as set forth below. The acquisition has resulted in a bargain purchase gain based on the purchase price being limited mostly to the net assets of the business excluding cash and investments. The bargain purchase gain has been recorded in other income (expense), net within the Consolidated Statement of Operations. In millions Fair Value Cash acquired $ 1 Investments acquired 9 Tangible assets acquired 18 Bargain purchase gain on business acquisition (7) Liabilities assumed (16) Total purchase consideration $ 5

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
Segment Information (Tables)	Dec. 31, 2020
Segment Reporting [Abstract]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	The following table presents revenue and operating income by segment for the years ended December 31: In millions 2020 2019 2018 Revenue by segment Banking $ 3,098 $ 3,512 $ 3,183 Retail 2,080 2,217 2,097 Hospitality 684 843 817 T&T 345 343 308 Consolidated revenue $ 6,207 $ 6,915 $ 6,405 Operating income by segment Banking $ 381 $ 514 $ 412 Retail 116 144 142 Hospitality 7 56 85 T&T 26 44 49 Subtotal - segment operating income 530 758 688 Other adjustments (1) 309 147 497 Income from operations $ 221 $ 611 $ 191 (1) The following table presents the other adjustments for NCR for the years ended December 31: In millions 2020 2019 2018 Transformation and restructuring costs $ 227 $ 58 $ 223 Acquisition-related amortization of intangibles 81 86 85 Acquisition-related costs 1 3 6 Asset impairment charges — — 183 Total other adjustments $ 309 $ 147 $ 497
Revenue from External Customers by Products and Services [Table Text Block]	The following table presents revenue from products and services for NCR for the years ended December 31: In millions 2020 2019 2018 Recurring revenue (1) $ 3,338 $ 3,182 $ 2,970 All other products and services 2,869 3,733 3,435 Consolidated revenue $ 6,207 $ 6,915 $ 6,405 (1) Recurring revenue includes all revenue streams from contracts where there is a predictable revenue pattern that will occur at regular intervals with a relatively high degree of certainty. This includes hardware and software maintenance revenue, cloud revenue, payment processing revenue, and certain professional services arrangements as well as term-based software license arrangements that include customer termination rights.
Revenue from External Customer [Line Items]
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]	Revenue is attributed to the geographic area to which the product is delivered or in which the service is provided. The following table presents revenue by geographic area for NCR for the years ended December 31: In millions 2020 % 2019 % 2018 % Revenue by Geographic Area United States $ 3,065 49 % $ 3,481 50 % $ 3,076 48 % Americas (excluding United States) 617 10 % 693 10 % 631 10 % Europe, Middle East and Africa 1,679 27 % 1,843 27 % 1,751 27 % Asia Pacific 846 14 % 898 13 % 947 15 % Consolidated revenue $ 6,207 100 % $ 6,915 100 % $ 6,405 100 %
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Table Text Block]	The following table presents property, plant and equipment by geographic area as of December 31: In millions 2020 2019 Property, plant and equipment, net United States $ 244 $ 280 Americas (excluding United States) 14 14 Europe, Middle East and Africa 75 74 Asia Pacific 40 45 Consolidated property, plant and equipment, net $ 373 $ 413 The components of property, plant and equipment are summarized as follows: In millions December 31, 2020 December 31, 2019 Property, plant and equipment Land and improvements $ 2 $ 5 Buildings and improvements 279 274 Machinery and other equipment 713 715 Finance lease assets 55 38 Property, plant and equipment, gross 1,049 1,032 Less: accumulated depreciation (676) (619) Total property, plant and equipment, net $ 373 $ 413

Debt Obligations Debt Obligatio

Debt Obligations Debt Obligations (Tables)	12 Months Ended
Debt Obligations Debt Obligations (Tables)	Dec. 31, 2020
Debt Disclosure [Abstract]
Schedule of Debt Obligations [Table Text Block]	The following table summarizes the Company's short-term borrowings and long-term debt: December 31, 2020 December 31, 2019 In millions, except percentages Amount Weighted-Average Interest Rate Amount Weighted-Average Interest Rate Short-Term Borrowings Current portion of Senior Secured Credit Facility (1) $ 8 2.65% $ 8 4.30% Trade Receivables Securitization Facility (1) — —% 270 2.65% Other (1) — —% 4 2.82% Total short-term borrowings $ 8 $ 282 Long-Term Debt Senior Secured Credit Facility: Term loan facility (1) $ 733 2.65% $ 740 4.30% Revolving credit facility (1) 75 2.40% 265 3.76% Senior Notes: 5.00% Senior Notes due 2022 — 600 6.375% Senior Notes due 2023 — 700 8.125% Senior Notes due 2025 400 — 5.750% Senior Notes due 2027 500 500 5.000% Senior Notes due 2028 650 — 6.125% Senior Notes due 2029 500 500 5.250% Senior Notes due 2030 450 — Deferred financing fees (40) (32) Other (1) 2 7.68% 4 0.05% Total long-term debt $ 3,270 $ 3,277
Schedule of Maturities of Long-term Debt [Table Text Block]	Debt Maturities Maturities of debt outstanding, in principal amounts, at December 31, 2020 are summarized below: For the years ended December 31 In millions Total 2021 2022 2023 2024 2025 Thereafter Debt maturities $ 3,318 $ 8 $ 9 $ 7 $ 83 $ 408 $ 2,803

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]	For the years ended December 31, income (loss) from continuing operations before income taxes consisted of the following: In millions 2020 2019 2018 Income (loss) before income taxes United States $ (391) $ (25) $ (262) Foreign 332 366 301 Total income (loss) from continuing operations before income taxes $ (59) $ 341 $ 39
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	For the years ended December 31, income tax expense (benefit) consisted of the following: In millions 2020 2019 2018 Income tax expense (benefit) Current Federal $ (9) $ 1 $ 18 State — 2 — Foreign 68 78 42 Deferred Federal (108) (19) (2) State (6) — 1 Foreign 2 (335) 14 Total income tax expense (benefit) $ (53) $ (273) $ 73
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	The following table presents the principal components of the difference between the effective tax rate and the U.S. federal statutory income tax rate for the years ended December 31: In millions 2020 2019 2018 Income tax expense (benefit) at the U.S. federal tax rate of 21% $ (12) $ 72 $ 8 Foreign income tax differential — 5 20 State and local income taxes (net of federal effect) (4) 3 2 Other U.S. permanent book/tax differences 2 3 — Meals and entertainment expense 1 2 2 Executive compensation 10 9 4 Employee share-based payments 3 2 3 Impact of intangible asset transfer — (245) — Gains/losses on distributions/entity liquidations 2 (12) — Foreign derived intangible income deduction — (7) (1) Change in branch tax status — (17) (9) Goodwill impairment — — 30 Research and development tax credits (7) (5) (6) Foreign tax law changes (4) 5 — U.S. valuation allowance (1) (37) (16) 16 U.S tax reform — — 37 Foreign valuation allowance 6 (74) 2 Change in liability for unrecognized tax benefits (1) (12) 4 (23) Prior period adjustments — (1) (11) Other, net (1) (1) (1) Total income tax expense (benefit) $ (53) $ (273) $ 73
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	Deferred income tax assets and liabilities included in the Consolidated Balance Sheets as of December 31 were as follows: In millions 2020 2019 Deferred income tax assets Employee pensions and other benefits $ 229 $ 243 Other balance sheet reserves and allowances 272 182 Tax loss and credit carryforwards 667 625 Capitalized research and development 44 47 Lease liabilities 91 104 Intangibles 123 127 Property, plant and equipment 11 11 Other 13 9 Total deferred income tax assets 1,450 1,348 Valuation allowance (341) (352) Net deferred income tax assets 1,109 996 Deferred income tax liabilities Right of use assets 90 102 Capitalized software 78 98 Total deferred income tax liabilities 168 200 Total net deferred income tax assets $ 941 $ 796
Summary of Income Tax Contingencies [Table Text Block]	The aggregate changes in the balance of our gross unrecognized tax benefits were as follows for the years ended December 31: In millions 2020 2019 2018 Gross unrecognized tax benefits - January 1 $ 121 $ 110 $ 196 Increases related to tax positions from prior years 15 7 9 Decreases related to tax positions from prior years (6) (4) (50) Increases related to tax provisions taken during the current year 6 14 9 Settlements with tax authorities (23) (5) (45) Lapses of statutes of limitation (10) (1) (9) Total gross unrecognized tax benefits - December 31 $ 103 $ 121 $ 110

Employee Stock Compensation P_2

Employee Stock Compensation Plans (Tables)	12 Months Ended
Employee Stock Compensation Plans (Tables)	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Share-based Payment Arrangement, Cost by Plan [Table Text Block]	As of December 31, 2020, the Company’s stock-based compensation consisted of restricted stock units, employee stock purchase plan and stock options. The Company recorded stock-based compensation expense for the years ended December 31 as follows: In millions 2020 2019 2018 Restricted stock units $ 78 $ 94 $ 65 Employee stock purchase plan 6 4 4 Stock options 24 9 4 Stock-based compensation expense 108 107 73 Tax benefit (13) (12) (10) Total stock-based compensation (net of tax) $ 95 $ 95 $ 63
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]	The following table reports restricted stock unit activity during the year ended December 31, 2020: Shares in thousands Number of Units Weighted Average Grant-Date Fair Value per Unit Unvested shares as of January 1 4,456 $ 28.18 Shares granted 5,391 $ 26.50 Shares vested (2,642) $ 28.03 Shares forfeited (547) $ 28.57 Unvested shares as of December 31 6,658 $ 26.84 Stock-based compensation expense is recognized in the financial statements based upon fair value. The total fair value of units vested and distributed in the form of NCR common stock was $77 million in 2020, $86 million in 2019, and $90 million in 2018. As of December 31, 2020, there was $88 million of unrecognized compensation cost related to unvested restricted stock unit grants. The unrecognized compensation cost is expected to be recognized over a remaining weighted-average period of 0.9 years. The weighted average grant date fair value for restricted stock unit awards granted in 2019 and 2018 was $24.31 and $26.25, respectively. The following table represents the composition of restricted stock unit grants in 2020: Shares in thousands Number of Units Weighted Average Grant-Date Fair Value Service-based units 825 $ 30.43 Performance-based units 4,566 $ 25.79 Total restricted stock units 5,391 $ 26.50
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	For the year ended December 31, 2020 For the year ended December 31, 2019 Dividend yield — — Risk-free interest rate 1.34 % 2.50 % Expected volatility 34.63 % 34.79 % Expected holding period - years 3.7 3.90
Share-based Payment Arrangement, Option, Activity [Table Text Block]	The following table summarizes the Company’s stock option activity for the year ended December 31, 2020: Shares in thousands Shares Under Option Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value Outstanding as of January 1 4,559 $ 28.08 Granted 5,871 $ 36.26 Exercised (105) $ 21.82 Forfeited or expired (527) $ 32.31 Outstanding as of December 31 9,798 $ 32.82 5.50 $ 50.01 Fully vested and expected to vest as of December 31 7,978 $ 33.78 5.77 $ 33.73 Exercisable as of December 31 1,820 $ 28.62 4.35 $ 16.28

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
Employee Benefit Plans (Tables)	Dec. 31, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]	The amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost (income) during 2021 are as follows: In millions U.S. International Pension Benefits Total Postretirement Benefits Postemployment Benefits Prior service cost (benefit) $ — $ 1 $ 1 $ 1 $ (2) Actuarial loss (gain) $ — $ — $ — $ — $ (2)
Schedule of Expected Benefit Payments [Table Text Block]	NCR expects to make the following benefit payments reflecting past and future service from its pension, postretirement and postemployment plans: In millions U.S. Pension Benefits International Pension Benefits Total Pension Benefits Postretirement Benefits Postemployment Benefits Year 2021 $ 109 $ 53 $ 162 $ 2 $ 39 2022 $ 110 $ 50 $ 160 $ 1 $ 17 2023 $ 112 $ 49 $ 161 $ 1 $ 16 2024 $ 114 $ 51 $ 165 $ 1 $ 15 2025 $ 115 $ 50 $ 165 $ 1 $ 14 2026-2030 $ 571 $ 242 $ 813 $ 3 $ 62
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Changes in Projected Benefit Obligations [Table Text Block]	Reconciliation of the beginning and ending balances of the benefit obligations for NCR's pension plans are as follows: U.S. Pension Benefits International Pension Benefits Total Pension Benefits In millions 2020 2019 2020 2019 2020 2019 Change in benefit obligation Benefit obligation as of January 1 $ 1,954 $ 1,763 $ 1,174 $ 1,092 $ 3,128 $ 2,855 Net service cost — — 6 7 6 7 Interest cost 51 66 13 19 64 85 Amendment — — 5 — 5 — Actuarial (gain) loss 168 229 86 112 254 341 Benefits paid (106) (104) (111) (76) (217) (180) Plan participant contributions — — 1 1 1 1 Currency translation adjustments — — 72 19 72 19 Benefit obligation as of December 31 $ 2,067 $ 1,954 $ 1,246 $ 1,174 $ 3,313 $ 3,128 Accumulated benefit obligation as of December 31 $ 2,067 $ 1,954 $ 1,235 $ 1,163 $ 3,302 $ 3,117
Schedule of Changes in Fair Value of Plan Assets [Table Text Block]	A reconciliation of the beginning and ending balances of the fair value of the plan assets of NCR's pension plans are as follows: U.S. Pension Benefits International Pension Benefits Total Pension Benefits In millions 2020 2019 2020 2019 2020 2019 Change in plan assets Fair value of plan assets as of January 1 $ 1,377 $ 1,269 $ 1,058 $ 953 $ 2,435 $ 2,222 Actual return on plan assets 187 212 99 128 286 340 Company contributions 70 — 19 23 89 23 Benefits paid (106) (104) (111) (76) (217) (180) Currency translation adjustments — — 53 29 53 29 Plan participant contributions — — — 1 — 1 Fair value of plan assets as of December 31 $ 1,528 $ 1,377 $ 1,118 $ 1,058 $ 2,646 $ 2,435
Schedule of Net Benefit Costs [Table Text Block]	The net periodic benefit (income) cost of the pension plans for the years ended December 31 was as follows: In millions U.S. Pension Benefits International Total Pension Benefits 2020 2019 2018 2020 2019 2018 2020 2019 2018 Net service cost $ — $ — $ — $ 6 $ 7 $ 7 $ 6 $ 7 $ 7 Interest cost 51 66 61 13 19 20 64 85 81 Expected return on plan assets (36) (43) (43) (28) (31) (32) (64) (74) (75) Amortization of prior service cost — — — 1 1 1 1 1 1 Actuarial (gain) loss 18 60 (29) 16 15 (16) 34 75 (45) Net periodic benefit (income) cost $ 33 $ 83 $ (11) $ 8 $ 11 $ (20) $ 41 $ 94 $ (31)
Schedule of Net Benefit Costs and Amounts Recognized in Balance Sheet [Table Text Block]	The following table presents the funded status and the reconciliation of the funded status to amounts recognized in the Consolidated Balance Sheets and in accumulated other comprehensive loss as of December 31: U.S. Pension Benefits International Pension Benefits Total Pension Benefits In millions 2020 2019 2020 2019 2020 2019 Funded Status $ (539) $ (577) $ (128) $ (116) $ (667) $ (693) Amounts recognized in the Consolidated Balance Sheets Noncurrent assets $ — $ — $ 199 $ 178 $ 199 $ 178 Current liabilities — — (15) (13) (15) (13) Noncurrent liabilities (539) (577) (312) (281) (851) (858) Net amounts recognized $ (539) $ (577) $ (128) $ (116) $ (667) $ (693) Amounts recognized in accumulated other comprehensive loss Prior service cost — — 24 20 24 20 Total $ — $ — $ 24 $ 20 $ 24 $ 20
Defined Benefit Plan, Assumptions [Table Text Block]	The weighted average rates and assumptions used to determine benefit obligations as of December 31 were as follows: U.S. Pension Benefits International Pension Benefits Total Pension Benefits 2020 2019 2020 2019 2020 2019 Discount rate 2.4 % 3.1 % 0.9 % 1.4 % 1.8 % 2.5 % Rate of compensation increase N/A N/A 0.9 % 0.9 % 0.9 % 0.9 % The weighted average rates and assumptions used to determine net periodic benefit (income) cost for the years ended December 31 were as follows: U.S. Pension Benefits International Total Pension Benefits 2020 2019 2018 2020 2019 2018 2020 2019 2018 Discount rate - Service Cost N/A N/A N/A 0.7 % 1.6 % 1.4 % 0.7 % 1.6 % 1.4 % Discount rate - Interest Cost 2.7 % 3.8 % 3.2 % 1.2 % 1.8 % 1.6 % 2.1 % 3.1 % 2.6 % Expected return on plan assets 2.8 % 3.6 % 3.1 % 2.6 % 3.2 % 3.0 % 2.7 % 3.4 % 3.1 % Rate of compensation increase N/A N/A N/A 0.9 % 1.0 % 0.9 % 0.9 % 1.0 % 0.9 %
Schedule of Allocation of Plan Assets [Table Text Block]	The fair value of plan assets as of December 31, 2020 and 2019 by asset category is as follows: U.S. International In millions Notes Fair Value as of December 31, 2020 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Not Subject to Leveling Fair Value as of December 31, 2020 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Not Subject to Leveling Assets Equity securities: Common stock 1 $ — $ — $ — $ — $ — $ 57 $ 57 $ — $ — $ — Fixed income securities: Government securities 2 221 — 221 — — — — — — — Corporate debt 3 1,011 — 1,011 — — 104 — 104 — — Other types of investments: Money market funds 4 5 — — — 5 10 — — — 10 Common and commingled trusts - Equities 4 — — — — — 149 — — — 149 Common and commingled trusts - Bonds 4 167 — — — 167 515 — — — 515 Common and commingled trusts - Short Term Investments 4 94 — — — 94 40 — — — 40 Common and commingled trusts - Balanced 4 — — — — — 90 — — — 90 Partnership/joint venture interests - Real estate 5 — — — — — — — — — — Partnership/joint venture interests - Other 5 2 — — — 2 — — — — — Mutual funds 4 28 28 — — — — — — — — Insurance products 4 — — — — — 1 — 1 — — Real estate and other 5 — — — — — 152 — — 152 — Total $ 1,528 $ 28 $ 1,232 $ — $ 268 $ 1,118 $ 57 $ 105 $ 152 $ 804 U.S. International In millions Notes Fair Value as of December 31, 2019 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs Not Subject to Leveling Fair Value as of December 31, 2019 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs Significant Unobservable Inputs Not Subject to Leveling Assets Equity securities: Common stock 1 $ — $ — $ — $ — $ — $ 53 $ 53 $ — $ — $ — Fixed income securities: Government securities 2 209 — 209 — — — — — — — Corporate debt 3 934 — 934 — — 103 — 103 — — Other types of investments: Money market funds 4 12 — — — 12 10 — — — 10 Common and commingled trusts - Equities 4 — — — — — 184 — — — 184 Common and commingled trusts - Bonds 4 157 — — — 157 470 — — — 470 Common and commingled trusts - Short Term Investments 4 19 — — — 19 21 — — — 21 Common and commingled trusts - Balanced 4 — — — — — 85 — — — 85 Partnership/joint venture interests - Real estate 5 1 — — — 1 — — — — — Partnership/joint venture interests - Other 5 2 — — — 2 — — — — — Mutual funds 4 43 43 — — — — — — — — Insurance products 4 — — — — — 1 — 1 — — Real estate and other 5 — — — — — 131 — — 131 — Total $ 1,377 $ 43 $ 1,143 $ — $ 191 $ 1,058 $ 53 $ 104 $ 131 $ 770 Notes: 1. Common stocks are valued based on quoted market prices at the closing price as reported on the active market on which the individual securities are traded. 2. Government securities are valued based on yields currently available on comparable securities of issuers with similar credit ratings. When quoted prices are not available for identical or similar securities, the security is valued under a discounted cash flows approach that maximizes observable inputs, such as current yields on similar instruments but includes adjustments for certain risks that may not be observable, such as credit and liquidity risks. 3. Corporate debt is valued primarily based on observable market quotations for similar bonds at the closing price reported on the active market on which the individual securities are traded. When such quoted prices are not available, the bonds are valued using a discounted cash flows approach using current yields on similar instruments of issuers with similar credit ratings. 4. Common/collective trusts and registered investment companies (RICs) such as mutual funds are valued using a Net Asset Value (NAV) provided by the manager of each fund. The NAV is based on the underlying net assets owned by the fund, divided by the number of shares or units outstanding. The fair value of the underlying securities within the fund, which are generally traded on an active market, are valued at the closing price reported on the active market on which those individual securities are traded. For investments not traded on an active market, or for which a quoted price is not publicly available, a variety of unobservable valuation methodologies, including discounted cash flow, market multiple and cost valuation approaches, are employed by the fund manager or independent third party to value investments. 5. Partnership/joint ventures are valued based on the fair value of the underlying securities within the fund, which include investments both traded on an active market and not traded on an active market. For those investments that are traded on an active market, the values are based on the closing price reported on the active market on which those individual securities are traded. For investments not traded on an active market, or for which a quoted price is not publicly available, a variety of unobservable valuation methodologies, including discounted cash flow, market multiples and cost valuation approaches, are employed by the fund manager to value investments.
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]	The following table presents the reconciliation of the beginning and ending balances of those plan assets classified within Level 3 of the valuation hierarchy. When the determination is made to classify the plan assets within Level 3, the determination is based upon the significance of the unobservable inputs to the overall fair value measurement. In millions International Pension Plans Balance, December 31, 2018 $ 129 Realized and unrealized gains and losses, net 2 Purchases, sales and settlements, net — Transfers, net — Balance, December 31, 2019 $ 131 Realized and unrealized gains and losses, net 21 Purchases, sales and settlements, net — Transfers, net — Balance, December 31, 2020 $ 152
Postretirement Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Changes in Projected Benefit Obligations [Table Text Block]	Reconciliation of the beginning and ending balances of the benefit obligation for NCR's U.S. postretirement plan is as follows: Postretirement Benefits In millions 2020 2019 Change in benefit obligation Benefit obligation as of January 1 $ 17 $ 18 Interest cost — 1 Actuarial gain — — Plan participant contributions — — Benefits paid (1) (2) Benefit obligation as of December 31 $ 16 $ 17
Schedule of Net Benefit Costs [Table Text Block]	The net periodic benefit income of the postretirement plan for the years ended December 31 was: In millions Postretirement Benefits 2020 2019 2018 Interest cost $ — $ 1 $ — Amortization of: Prior service benefit (3) (5) (5) Actuarial loss 1 — 1 Net periodic benefit income $ (2) $ (4) $ (4)
Schedule of Net Benefit Costs and Amounts Recognized in Balance Sheet [Table Text Block]	The following table presents the funded status and the reconciliation of the funded status to amounts recognized in the Consolidated Balance Sheets and in accumulated other comprehensive loss as of December 31: Postretirement Benefits In millions 2020 2019 Benefit obligation $ (16) $ (17) Amounts recognized in the Consolidated Balance Sheets Current liabilities $ (2) $ (2) Noncurrent liabilities (14) (15) Net amounts recognized $ (16) $ (17) Amounts recognized in accumulated other comprehensive loss Net actuarial loss $ 6 $ 7 Prior service benefit — (3) Total $ 6 $ 4
Defined Benefit Plan, Assumptions [Table Text Block]	The assumptions utilized in accounting for postretirement benefit obligations as of December 31 and for postretirement benefit income for the years ended December 31 were: Postretirement Benefit Obligations Postretirement Benefit Costs 2020 2019 2018 2020 2019 2018 Discount rate 1.4 % 2.5 % 3.7 % 2.5 % 3.7 % 3.1 % Assumed healthcare cost trend rates as of December 31 were: 2020 2019 Pre-65 Coverage Post-65 Coverage Pre-65 Coverage Post-65 Coverage Healthcare cost trend rate assumed for next year 6.5 % 5.8 % 6.7 % 5.9 % Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) 5.0 % 5.0 % 5.0 % 5.0 % Year that the rate reaches the ultimate rate 2027 2027 2027 2027
Postemployment Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Changes in Projected Benefit Obligations [Table Text Block]	Reconciliation of the beginning and ending balances of the benefit obligation for NCR's postemployment plan was: Postemployment Benefits In millions 2020 2019 Change in benefit obligation Benefit obligation as of January 1 $ 126 $ 139 Service cost 42 31 Interest cost 3 3 Amendments (4) — Benefits paid (39) (35) Foreign currency exchange 3 (1) Actuarial (gain) loss 7 (11) Benefit obligation as of December 31 $ 138 $ 126
Schedule of Net Benefit Costs [Table Text Block]	The net periodic benefit cost of the postemployment plan for the years ended December 31 was: In millions Postemployment Benefits 2020 2019 2018 Service cost $ 42 $ 31 $ 43 Interest cost 3 3 3 Amortization of: Prior service benefit (2) (2) (5) Actuarial gain (4) (3) (1) Net benefit cost $ 39 $ 29 $ 40
Schedule of Net Benefit Costs and Amounts Recognized in Balance Sheet [Table Text Block]	The following table presents the funded status and the reconciliation of the unfunded status to amounts recognized in the Consolidated Balance Sheets and in accumulated other comprehensive loss at December 31: Postemployment Benefits In millions 2020 2019 Benefit obligation $ (138) $ (126) Amounts recognized in the Consolidated Balance Sheets Current liabilities $ (32) $ (30) Noncurrent liabilities (106) (96) Net amounts recognized $ (138) $ (126) Amounts recognized in accumulated other comprehensive loss Net actuarial gain $ (23) $ (38) Prior service benefit (8) (6) Total $ (31) $ (44)
Defined Benefit Plan, Assumptions [Table Text Block]	The weighted average assumptions utilized in accounting for postemployment benefit obligations as of December 31 and for postemployment benefit costs for the years ended December 31 were: Postemployment Benefit Obligations Postemployment Benefit Costs 2020 2019 2020 2019 2018 Discount rate 1.4 % 1.8 % 1.8 % 2.4 % 2.3 % Salary increase rate 2.0 % 1.8 % 1.8 % 1.9 % 1.9 % Involuntary turnover rate 3.8 % 3.8 % 3.8 % 4.3 % 4.8 %

Commitments and Contingencies W

Commitments and Contingencies Warranty Reserve (Tables)	12 Months Ended
Commitments and Contingencies Warranty Reserve (Tables)	Dec. 31, 2019
Product Warranty Liability [Line Items]
Schedule of Product Warranty Liability [Table Text Block]	The Company recorded the activity related to the warranty reserve for the years ended December 31 as follows: In millions 2020 2019 2018 Warranty reserve liability Beginning balance as of January 1 $ 21 $ 26 $ 26 Accruals for warranties issued 30 37 42 Settlements (in cash or in kind) (33) (42) (42) Ending balance as of December 31 $ 18 $ 21 $ 26

Derivatives and Hedging Instr_2

Derivatives and Hedging Instruments (Tables)	12 Months Ended
Derivatives and Hedging Instruments (Tables)	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	The following tables provide information on the location and amounts of derivative fair values in the Consolidated Balance Sheets: Fair Values of Derivative Instruments December 31, 2020 In millions Balance Sheet Location Notional Fair Balance Sheet Location Notional Fair Derivatives designated as hedging instruments Foreign exchange contracts Other current assets $ — $ — Other current liabilities $ — $ — Total derivatives designated as hedging instruments $ — $ — Derivatives not designated as hedging instruments Foreign exchange contracts Other current assets $ 150 $ — Other current liabilities $ 425 $ 1 Total derivatives not designated as hedging instruments $ — $ 1 Total derivatives $ — $ 1 Fair Values of Derivative Instruments December 31, 2019 In millions Balance Sheet Location Notional Fair Balance Sheet Location Notional Fair Derivatives designated as hedging instruments Foreign exchange contracts Other current assets $ 55 $ 1 Other current liabilities $ — $ — Total derivatives designated as hedging instruments $ 1 $ — Derivatives not designated as hedging instruments Foreign exchange contracts Other current assets $ 71 $ 1 Other current liabilities $ 264 $ 1 Total derivatives not designated as hedging instruments $ 1 $ 1 Total derivatives $ 2 $ 1
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]	The effects of derivative instruments on the Consolidated Statement of Operations for the years ended December 31 were as follows: In millions Amount of Gain (Loss) Recognized in Other Comprehensive Income (OCI) on Derivative Amount of (Gain) Loss Reclassified from AOCI into the Consolidated Statement of Operations Derivatives in Cash Flow Hedging Relationships For the year ended December 31, 2020 For the year ended December 31, 2019 For the year ended December 31, 2018 Location of (Gain) Loss Reclassified from AOCI into the Consolidated Statement of Operations (Effective Portion) For the year ended December 31, 2020 For the year ended December 31, 2019 For the year ended December 31, 2018 Foreign exchange contracts $ (8) $ 6 $ 11 Cost of products $ 7 $ (8) $ (7) In millions Amount of Gain (Loss) Recognized in the Derivatives not Designated as Hedging Instruments Location of Gain (Loss) Recognized in the Consolidated Statement of Operations For the year ended December 31, 2020 For the year ended December 31, 2019 For the year ended December 31, 2018 Foreign exchange contracts Other income (expense), net $ 22 $ (8) $ (9)

Fair Value of Assets and Liab_2

Fair Value of Assets and Liabilities (Tables)	12 Months Ended
Fair Value of Assets and Liabilities (Tables)	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Assets and liabilities recorded at fair value on a recurring basis as of December 31, 2020 and 2019 are set forth as follows: December 31, 2020 December 31, 2019 Fair Value Measurements Using Fair Value Measurements Using In millions December 31, 2020 Quoted Prices Significant Other Significant December 31, 2019 Quoted Prices Significant Other Significant Assets: Deposits held in money market mutual funds (1) $ 22 $ 22 $ — $ — $ 15 $ 15 $ — $ — Foreign Investments (2) 2 — 2 — — — — — Foreign exchange contracts (2) — — — — 2 — 2 — Total $ 24 $ 22 $ 2 $ — $ 17 $ 15 $ 2 $ — Liabilities: Foreign exchange contracts (3) 1 — 1 — 1 — 1 — Total $ 1 $ — $ 1 $ — $ 1 $ — $ 1 $ — (1) Included in Cash and cash equivalents in the Consolidated Balance Sheet. (2) Included in Other current assets in the Consolidated Balance Sheet. (3) Included in Other current liabilities in the Consolidated Balance Sheet.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (AOCI) (Tables)	12 Months Ended
	Dec. 31, 2020
Statement of Financial Position [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Changes in Accumulated Other Comprehensive Income (AOCI) by Component The changes in AOCI for the years ended December 31 are as follows: In millions Currency Translation Adjustments Changes in Employee Benefit Plans Changes in Fair Value of Effective Cash Flow Hedges Total Balance at December 31, 2017 $ (183) $ (15) $ (1) $ (199) Impact of adoption of new accounting standard — 1 — 1 Other comprehensive (loss) income before reclassifications (51) 6 11 (34) Amounts reclassified from AOCI — (6) (8) (14) Net current period other comprehensive (loss) income (51) — 3 (48) Balance at December 31, 2018 $ (234) $ (14) $ 2 $ (246) Other comprehensive (loss) income before reclassifications (26) 10 5 (11) Amounts reclassified from AOCI — (6) (6) (12) Net current period other comprehensive (loss) income (26) 4 (1) (23) Balance at December 31, 2019 $ (260) $ (10) $ 1 $ (269) Other comprehensive (loss) income before reclassifications 15 (11) (7) (3) Amounts reclassified from AOCI — (5) 6 1 Net current period other comprehensive (loss) income 15 (16) (1) (2) Balance at December 31, 2020 $ (245) $ (26) $ — $ (271)
Schedule of Reclassifications Out of Accumulated Other Comprehensive Income [Table Text Block]	For the year ended December 31, 2020 Employee Benefit Plans In millions Actuarial Losses Recognized Amortization of Prior Service Benefit Effective Cash Flow Hedges Total Affected line in Consolidated Statement of Operations: Cost of products $ — $ — $ 7 $ 7 Cost of services (2) (2) — (4) Selling, general and administrative expenses (1) (2) — (3) Research and development expenses — — — — Total before tax $ (3) $ (4) $ 7 $ — Tax expense 1 Total reclassifications, net of tax $ 1 For the year ended December 31, 2019 Employee Benefit Plans In millions Actuarial Losses Recognized Amortization of Prior Service Benefit Effective Cash Flow Hedges Total Affected line in Consolidated Statement of Operations: Cost of products $ — $ — $ (8) $ (8) Cost of services (2) (3) — (5) Selling, general and administrative expenses (1) (3) — (4) Research and development expenses — — — — Total before tax $ (3) $ (6) $ (8) $ (17) Tax expense 5 Total reclassifications, net of tax $ (12) For the year ended December 31, 2018 Employee Benefit Plans In millions Actuarial Losses Recognized Amortization of Prior Service Benefit Effective Cash Flow Hedges Total Affected line in Consolidated Statement of Operations: Cost of products $ — $ — $ (7) $ (7) Cost of services — (5) — (5) Selling, general and administrative expenses — (3) — (3) Research and development expenses — (1) — (1) Total before tax $ — $ (9) $ (7) $ (16) Tax expense 2 Total reclassifications, net of tax $ (14)

Revisions of Previously Issue_2

Revisions of Previously Issued Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2020
Accounting Changes and Error Corrections [Abstract]
Schedule of Error Corrections and Prior Period Adjustments	For the year ended December 31, 2019 In millions As Reported Adjustment As Revised Increase (decrease) in other assets and liabilities $ 2 $ 6 $ 8 Net cash provided by (used in) operating activities $ 628 $ 6 $ 634 Net increase (decrease) in client obligations $ (15) $ 15 $ — Net cash provided by (used in) investing activities $ (527) $ 15 $ (512) Net increase (decrease) in client obligations $ 15 $ (30) $ (15) Net cash provided by (used in) financing activities $ (31) $ (30) $ (61) Increase (decrease) in Cash, cash equivalents and restricted cash $ 40 $ (9) $ 31 Cash, cash equivalents and restricted cash at the beginning of the period $ 476 $ 56 $ 532 Cash, cash equivalents and restricted cash at the end of the period $ 516 $ 47 $ 563
Reconciliation of cash, cash equivalents, and restricted cash	In millions Balance Sheet Location December 31, 2020 December 31, 2019 December 31, 2018 Cash and cash equivalents Cash and cash equivalents $ 338 $ 509 $ 464 Restricted cash Other assets 9 7 12 Funds held for client Other current assets 44 32 46 Cash included in settlement processing assets Other current assets 15 15 10 Total cash, cash equivalents and restricted cash $ 406 $ 563 $ 532 In millions December 31, 2019 Reconciliation of cash, cash equivalents and restricted cash as shown in the Consolidated Statements of Cash Flows Cash and cash equivalents $ 509 Restricted cash included in other assets 7 Funds held for clients included in other current assets 32 Cash included in settlement processing assets included in other current assets 15 Total cash, cash equivalents and restricted cash $ 563

Supplemental Financial Inform_2

Supplemental Financial Information (Tables)	12 Months Ended
Supplemental Financial Information (Tables)	Dec. 31, 2020
Supplemental Financial Information [Abstract]
Interest and Other Income [Table Text Block]	The components of other income (expense), net are summarized as follows for the years ended December 31: In millions 2020 2019 2018 Other income (expense), net Interest income $ 8 $ 5 $ 5 Foreign currency fluctuations and foreign exchange contracts (14) (23) (26) Employee benefit plans (31) (82) 45 Bank-related fees (5) (7) (8) Gain on equity liquidations — 37 — Impairment of equity investment (7) — — Bargain purchase gain on acquisition 7 — — Other, net — (3) — Total other income (expense), net $ (42) $ (73) $ 16
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	The components of accounts receivable are summarized as follows: In millions December 31, 2020 December 31, 2019 Accounts receivable Trade $ 1,120 $ 1,482 Other 48 52 Accounts receivable, gross 1,168 1,534 Less: allowance for credit losses (51) (44) Total accounts receivable, net $ 1,117 $ 1,490
Schedule of Inventory, Current [Table Text Block]	The components of inventory are summarized as follows: In millions December 31, 2020 December 31, 2019 Inventories Work in process and raw materials $ 133 $ 204 Finished goods 135 184 Service parts 333 396 Total inventories $ 601 $ 784
Property, Plant and Equipment [Table Text Block]	The following table presents property, plant and equipment by geographic area as of December 31: In millions 2020 2019 Property, plant and equipment, net United States $ 244 $ 280 Americas (excluding United States) 14 14 Europe, Middle East and Africa 75 74 Asia Pacific 40 45 Consolidated property, plant and equipment, net $ 373 $ 413 The components of property, plant and equipment are summarized as follows: In millions December 31, 2020 December 31, 2019 Property, plant and equipment Land and improvements $ 2 $ 5 Buildings and improvements 279 274 Machinery and other equipment 713 715 Finance lease assets 55 38 Property, plant and equipment, gross 1,049 1,032 Less: accumulated depreciation (676) (619) Total property, plant and equipment, net $ 373 $ 413

Quarterly Information (unaudi_2

Quarterly Information (unaudited) (Tables)	12 Months Ended
Quarterly Information (unaudited) (Tables)	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information [Table Text Block]	In millions, except per share amounts First Second Third Fourth 2020 Total revenue $ 1,503 $ 1,484 $ 1,589 $ 1,631 Gross margin $ 397 $ 372 $ 427 $ 328 Income from operations $ 77 $ 89 $ 118 $ (63) Income (loss) from continuing operations (attributable to NCR) $ 23 $ 64 $ 31 $ (125) Income (loss) from discontinued operations, net of tax $ — $ — $ — $ (72) Net (loss) income attributable to NCR common stockholders $ 17 $ 57 $ 25 $ (209) Income (loss) per share attributable to NCR common stockholders: Income (loss) per common share from continuing operations Basic $ 0.13 $ 0.45 $ 0.19 $ (1.06) Diluted $ 0.13 $ 0.44 $ 0.19 $ (1.06) Net (loss) income per common share Basic $ 0.13 $ 0.45 $ 0.19 $ (1.62) Diluted $ 0.13 $ 0.44 $ 0.19 $ (1.62) 2019 Total revenue $ 1,536 $ 1,710 $ 1,783 $ 1,886 Gross margin $ 411 $ 471 $ 507 $ 532 Income (loss) from operations $ 100 $ 157 $ 172 $ 182 Income (loss) from continuing operations (attributable to NCR) $ 37 $ 88 $ 105 $ 384 Income (loss) from discontinued operations, net of tax $ — $ — $ (15) $ (35) Net income (loss) attributable to NCR common stockholders $ 24 $ 76 $ 11 $ 343 Income (loss) per share attributable to NCR common stockholders: Income (loss) per common share from continuing operations Basic $ 0.20 $ 0.63 $ 0.21 $ 2.96 Diluted $ 0.20 $ 0.58 $ 0.21 $ 2.67 Net income (loss) per common share Basic $ 0.20 $ 0.63 $ 0.09 $ 2.69 Diluted $ 0.20 $ 0.58 $ 0.09 $ 2.43

Description of Business and S_4

Description of Business and Significant Accounting Policies Subsequent Events (Details) - Subsequent Event	Jan. 25, 2021$ / shares
Subsequent Event [Line Items]
Business Acquisition, Share Price	$ 39
Business Acquisition, Share Price	$ 39

Description of Business and S_5

Description of Business and Significant Accounting Policies - Revenue Recognition (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Concentration Risk [Line Items]
Contract term used to recognize set up fees	5 years
Period of benefit used to amortize set up costs	7 years
Revenue Benchmark [Member] \| Bill and Hold Transactions [Member] \| Maximum [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	1.00%	1.00%

Description of Business and S_6

Description of Business and Significant Accounting Policies Description of Business and Significant Accounting Policies - Earnings Per Share (Basic) (Details) - USD ($) $ / shares in Units, shares in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Income (loss) from continuing operations	$ (125,000,000)	$ 31,000,000	$ 64,000,000	$ 23,000,000	$ 384,000,000	$ 105,000,000	$ 88,000,000	$ 37,000,000	$ (7,000,000)	$ 614,000,000	$ (36,000,000)
Preferred Stock Dividends, Income Statement Impact									31,000,000	110,000,000	49,000,000
Income (loss) from continuing operations attributable to common stockholders									(38,000,000)	504,000,000	(85,000,000)
Income (loss) from discontinued operations, net of tax	(72,000,000)	0	0	0	(35,000,000)	(15,000,000)	0	0	(72,000,000)	(50,000,000)	(52,000,000)
Net income (loss) attributable to NCR common stockholders	$ (209,000,000)	$ 25,000,000	$ 57,000,000	$ 17,000,000	$ 343,000,000	$ 11,000,000	$ 76,000,000	$ 24,000,000	$ (110,000,000)	$ 454,000,000	$ (137,000,000)
Basic (in shares)									128.4	122.1	118.4
Basic (in dollars per share)	$ (1.06)	$ 0.19	$ 0.45	$ 0.13	$ 2.96	$ 0.21	$ 0.63	$ 0.20	$ (0.30)	$ 4.13	$ (0.72)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share									(0.56)	(0.41)	(0.44)
Basic (in dollars per share)	$ (1.62)	$ 0.19	$ 0.45	$ 0.13	$ 2.69	$ 0.09	$ 0.63	$ 0.20	$ (0.86)	$ 3.72	$ (1.16)

Description of Business and S_7

Description of Business and Significant Accounting Policies - Earnings Per Share (Diluted) (Details) - USD ($) $ / shares in Units, shares in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share Reconciliation [Abstract]
Income from continuing operations	$ (125,000,000)	$ 31,000,000	$ 64,000,000	$ 23,000,000	$ 384,000,000	$ 105,000,000	$ 88,000,000	$ 37,000,000	$ (7,000,000)	$ 614,000,000	$ (36,000,000)
Preferred Stock Dividends Income Statement Impact Included in Diluted Earnings Per Share From Continuing Operations									31,000,000	(76,000,000)	(49,000,000)
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted									(38,000,000)	538,000,000	(85,000,000)
Income (loss) from discontinued operations, net of tax	$ (72,000,000)	$ 0	$ 0	$ 0	$ (35,000,000)	$ (15,000,000)	$ 0	$ 0	(72,000,000)	(50,000,000)	(52,000,000)
Net income (loss) attributable to NCR common stockholders									$ (110,000,000)	$ 488,000,000	$ (137,000,000)
Weighted average outstanding shares of common stock									128.4	122.1	118.4
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock									0	19.5	0
Dilutive effect of employee stock options and restricted stock									0	3.6	0
Weighted Average Number of Shares Outstanding, Diluted									128.4	145.2	118.4
Diluted earnings (loss) per share [Abstract]
Diluted (in dollars per share)	$ (1.06)	$ 0.19	$ 0.44	$ 0.13	$ 2.67	$ 0.21	$ 0.58	$ 0.20	$ (0.30)	$ 3.71	$ (0.72)
From discontinued operations (in dollars per share)									(0.56)	(0.35)	(0.44)
Diluted (in dollars per share)	$ (1.62)	$ 0.19	$ 0.44	$ 0.13	$ 2.43	$ 0.09	$ 0.58	$ 0.20	$ (0.86)	$ 3.36	$ (1.16)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Series A convertible preferred stock dividends									$ (31,000,000)	$ (110,000,000)	$ (49,000,000)
Series A Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									9.1	5.7	28.3
Restricted Stock Units (RSUs) and Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									11.2	4.3	5.6

Description of Business and S_8

Description of Business and Significant Accounting Policies Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Research and Development [Abstract]
Cash and Cash Equivalents	$ 338	$ 509	$ 464
Restricted Cash included in other assets	9	7	12
Funds Held for Clients included in other current assets	44	32	46
Cash included in settlement processing assets included in other current assets	15	15	10
Cash, Cash Equivalents, Restricted Cash at end of period	$ 406	$ 563	$ 532

Description of Business and S_9

Description of Business and Significant Accounting Policies Description of Business and Significant Accounting Policies - Contract with Customer, Asset and Liability (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Contract with Customer, Asset, after Allowance for Credit Loss	$ 0	$ 9
Contract with Customer, Liability, Current	507	502
Contract with Customer, Liability, Noncurrent	80	81
Contract with Customer, Liability, Revenue Recognized	$ 407	$ 341

Description of Business and _10

Description of Business and Significant Accounting Policies - Capitalized Software and Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Depreciation	$ 88	$ 79	$ 81
Capitalized Software [Roll Forward]
Beginning balance	413	325	366
Capitalization	232	238	170
Amortization	(171)	(148)	(160)
Impairment	(32)	(2)	(51)
Ending balance	$ 442	$ 413	$ 325
Machinery and other equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Machinery and other equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	20 years
Building [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years
Building [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	45 years
Software Development Costs, Internal Use [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Capitalized computer software, useful life	4 years
Software Development Costs, Internal Use [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Capitalized computer software, useful life	7 years
Software and Software Development Costs [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Capitalized computer software, useful life	3 years
Software and Software Development Costs [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Capitalized computer software, useful life	5 years

Description of Business and _11

Description of Business and Significant Accounting Policies Remaining Performance Obligations (Details) $ in Billions	Dec. 31, 2020USD ($)
Remaining Performance Obligations [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 3.6

Description of Business and _12

Description of Business and Significant Accounting Policies Settlement Assets and Settlement Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Settlement Assets, Current	$ 33	$ 33
Settlement Liabilities, Current	$ 31	$ 31

Description of Business and _13

Description of Business and Significant Accounting Policies Recent Accounting Pronouncements (Details)	Dec. 31, 2020
6.375% Notes due 2023 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.375%
5% Notes Due 2022 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.00%

Description of Business and _14

Description of Business and Significant Accounting Policies - Allowance for Credit Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Accounts Receivable, Allowance for Credit Loss, Current	$ 51	$ 44
Provision for Other Credit Losses	33
Provision for Credit Losses Attributable to COVID-19	10
Accounts Receivable, Allowance for Credit Loss, Writeoff	$ 26

Goodwill and Purchased Intang_3

Goodwill and Purchased Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020
Goodwill [Roll Forward]
Goodwill, Gross	$ 3,001	$ 2,861
Accumulated Impairment Losses	(169)	(169)
Goodwill	2,832	2,692
Additions	1	138
Goodwill, Impairment Loss	0	0
Other	(4)	(2)
Goodwill, Gross	3,006	3,001
Accumulated Impairment Losses	(169)	(169)
Goodwill Total	2,832	2,692	$ 2,837
Banking Segment [Member]
Goodwill [Roll Forward]
Goodwill, Gross	1,774	1,718
Accumulated Impairment Losses	(101)	(101)
Goodwill	1,673	1,617
Additions	0	54
Goodwill, Impairment Loss	0	0
Other	(2)	2
Goodwill, Gross	1,772	1,774
Accumulated Impairment Losses	(101)	(101)
Goodwill Total	1,673	1,617	1,671
Retail
Goodwill [Roll Forward]
Goodwill, Gross	638	571
Accumulated Impairment Losses	(34)	(34)
Goodwill	604	537
Additions	0	67
Goodwill, Impairment Loss	0	0
Other	5	0
Goodwill, Gross	643	638
Accumulated Impairment Losses	(34)	(34)
Goodwill Total	604	537	609
Hospitality
Goodwill [Roll Forward]
Goodwill, Gross	402	385
Accumulated Impairment Losses	(23)	(23)
Goodwill	379	362
Additions	1	17
Goodwill, Impairment Loss	0	0
Other	1	0
Goodwill, Gross	404	402
Accumulated Impairment Losses	(23)	(23)
Goodwill Total	379	362	381
Other Segments [Member]
Goodwill [Roll Forward]
Goodwill, Gross	187	187
Accumulated Impairment Losses	(11)	(11)
Goodwill	176	176
Additions	0	0
Goodwill, Impairment Loss	0	0
Other	0	0
Goodwill, Gross	187	187
Accumulated Impairment Losses	(11)	(11)
Goodwill Total	$ 176	$ 176	$ 176

Goodwill and Purchased Intang_4

Goodwill and Purchased Intangible Assets Goodwill impairment charges (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill, Impairment Loss	$ 0	$ 0
Hardware Segment [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill, Impairment Loss			$ 146

Goodwill and Purchased Intang_5

Goodwill and Purchased Intangible Assets - Schedule of Acquired Intangibles (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 1,437	$ 1,431
Accumulated Amortization	(905)	(824)
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	740	735
Accumulated Amortization	(324)	(270)
Intellectual property [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	531	529
Accumulated Amortization	$ (418)	(397)
Customer Contracts [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	8 years
Finite-Lived Intangible Assets, Gross	$ 89	89
Accumulated Amortization	(89)	(89)
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	77	78
Accumulated Amortization	$ (74)	$ (68)
Minimum [Member] \| Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	1 year
Minimum [Member] \| Intellectual property [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years
Minimum [Member] \| Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	1 year
Maximum [Member] \| Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Maximum [Member] \| Intellectual property [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	8 years
Maximum [Member] \| Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years

Goodwill and Purchased Intang_6

Goodwill and Purchased Intangible Assets - Amorization Expense (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 81
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2019	72
2020	68
2021	66
2022	59
Finite-Lived Intangible Asset, Expected Amortization, after Year Five	$ 51

Business Combinations and Div_3

Business Combinations and Divestitures D3 Technology Details (Details) - D3 Technology [Member] $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	$ 84
Business Combination, Cash Consideration Paid	83
Business Combination, Consideration Transferred, Liabilities Incurred	1
Business Acquisition, Transaction Costs	$ 1

Business Combinations and Div_4

Business Combinations and Divestitures Schedule of Business Acquisitions, by Acquisition - D3 Technology (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill	$ 2,837	$ 2,832	$ 2,692
D3 Technology [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents		9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		20
Goodwill		51
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets		(6)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		(8)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		$ 84

Business Combinations and Div_5

Business Combinations and Divestitures Intangibles Acquired - D3 Technology (Details) - D3 Technology [Member] $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 7
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	11 years
Patented Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 11
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 2
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Total acquired intangible assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 20

Business Combinations and Div_6

Business Combinations and Divestitures Zynstra Details (Details) - Zynstra Ltd. [Member] $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	$ 134
Business Combination, Cash Consideration Paid	112
Business Combination, Contingent Consideration, Liability, Current	22
Business Acquisition, Transaction Costs	$ 2

Business Combinations and Div_7

Business Combinations and Divestitures Schedule of Business Acquisitions, by Acquisition - Zynstra (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill	$ 2,837	$ 2,832	$ 2,692
Zynstra Ltd. [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents		1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		76
Goodwill		66
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities		9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		1
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		$ 134

Business Combinations and Div_8

Business Combinations and Divestitures Intangibles Acquired - Zynstra (Details) - Zynstra Ltd. [Member] $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Patented Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 75
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 1
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	1 year
Total acquired intangible assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 76

Business Combinations and Div_9

Business Combinations and Divestitures Other 2019 Acquisitions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill	$ 2,832	$ 2,837	$ 2,692
Other Hospitality Acquisitions
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	20
Business Combination, Consideration Transferred, Liabilities Incurred	2
Goodwill	17
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 6
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years

Business Combinations and Di_10

Business Combinations and Divestitures JetPay Acquisition (Details) - USD ($) $ / shares in Units, $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill	$ 2,837	$ 2,832	$ 2,692
Common Stock [Member]
Business Acquisition [Line Items]
Business Acquisition, Share Price			$ 5.05
JetPay [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net			$ 193
Business Acquisition, Transaction Costs		$ 4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents			50
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets			30
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			104
Goodwill			96
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets			(11)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities			$ 76

Business Combinations and Di_11

Business Combinations and Divestitures Intangibles Acquired - JetPay (Details) - JetPay [Member] $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 64
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	17 years
Patented Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 39
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	9 years
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 1
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	1 year
Total acquired intangible assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 104

Business Combinations and Di_12

Business Combinations and Divestitures JetPay Pro Forma Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business Acquisition, Pro Forma Revenue	$ 6,468
Business Acquisition, Pro Forma Net Income (Loss)	(46)
Business Acquisition, Pro Forma Expenses Incremental Amortization Changes Attributable to Acquiree	4
BusinessAcquisitionsProFormaExpensesTransactionsCosts	4
Business Acquisition Pro Forma Expenses Incremental Interest Charges Attributable to Acquiree	$ 7

Business Combinations and Di_13

Business Combinations and Divestitures Origami (Details) - Business Acquisition, OKI Brasil [Member] $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ 1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities	9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	18
Business Combination, Bargain Purchase, Deferred Gain	(7)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	(16)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	5
Business combinations, purchase considerations, payable six years from acquisition date
Business Acquisition [Line Items]
Business Combination, Consideration Transferred, Liabilities Incurred	3
Business combinations, Purchase Considerations, Payable Two Years From Acquisition Date
Business Acquisition [Line Items]
Business Combination, Consideration Transferred, Liabilities Incurred	$ 2

Segment Information - Revenue a

Segment Information - Revenue and Operating Income By Segments (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020		Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total revenue									$ 6,207		$ 6,915	$ 6,405
Income from operations	$ (63)	$ 118	$ 89	$ 77	$ 182	$ 172	$ 157	$ 100	221		611	191
Asset Impairment Charges									18		0	227
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue									6,207		6,915	6,405
Operating income by segment									530		758	688
Operating Segments [Member] \| Banking Segment [Member]
Segment Reporting Information [Line Items]
Total revenue									3,098		3,512	3,183
Operating income by segment									381		514	412
Operating Segments [Member] \| Retail Segment [Member]
Segment Reporting Information [Line Items]
Total revenue									2,080		2,217	2,097
Operating income by segment									116		144	142
Operating Segments [Member] \| Hospitality
Segment Reporting Information [Line Items]
Total revenue									684		843	817
Operating income by segment									7		56	85
Operating Segments [Member] \| Other Segments [Member]
Segment Reporting Information [Line Items]
Total revenue									345		343	308
Operating income by segment									26		44	49
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Other adjustments									309	[1]	147	497
Restructuring and other asset-related charges									227		58	223
Acquisition Related Amortization Costs Included in Other Adjustments									81		86	85
Acquisiton Related Costs Included In Other Adjustments									1		3	6
Asset Impairment Charges									$ 0		$ 0	$ 183

[1]	(1) The following table presents the other adjustments for NCR fo

Segment Information - Revenue f

Segment Information - Revenue from External Customers by Products and Services (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue from External Customer [Line Items]
Total revenue	$ 6,207	$ 6,915	$ 6,405
Recurring revenue [Member]
Revenue from External Customer [Line Items]
Total revenue	3,338	3,182	2,970
All other products and services
Revenue from External Customer [Line Items]
Total revenue	$ 2,869	$ 3,733	$ 3,435

Segment Information Geographic

Segment Information Geographic Area (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,631	$ 1,589	$ 1,484	$ 1,503	$ 1,886	$ 1,783	$ 1,710	$ 1,536	$ 6,207	$ 6,915	$ 6,405
Percentage of Revenues by Geographic Area									100.00%	100.00%	100.00%
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 3,065	$ 3,481	$ 3,076
Percentage of Revenues by Geographic Area									49.00%	50.00%	48.00%
Americas (Excluding United States) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 617	$ 693	$ 631
Percentage of Revenues by Geographic Area									10.00%	10.00%	10.00%
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 1,679	$ 1,843	$ 1,751
Percentage of Revenues by Geographic Area									27.00%	27.00%	27.00%
APJ [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 846	$ 898	$ 947
Percentage of Revenues by Geographic Area									14.00%	13.00%	15.00%

Segment Information Property, P

Segment Information Property, Plant and Equipment by Geography (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Property, plant and equipment, net	$ 373	$ 413
UNITED STATES
Segment Reporting Information [Line Items]
Property, plant and equipment, net	244	280
Americas (Excluding United States) [Member]
Segment Reporting Information [Line Items]
Property, plant and equipment, net	14	14
EMEA
Segment Reporting Information [Line Items]
Property, plant and equipment, net	75	74
APJ [Member]
Segment Reporting Information [Line Items]
Property, plant and equipment, net	$ 40	$ 45

Debt Obligations (Details)

Debt Obligations (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Aug. 21, 2019
Debt Instrument [Line Items]
Short-term borrowings	$ 8	$ 282
Long-term debt	3,270	3,277
Deferred Financing Fees	40	32
Term Loan [Member]
Debt Instrument [Line Items]
Long-term debt	$ 733	$ 740
Long-term Debt, Weighted Average Interest Rate, at Point in Time	2.65%	4.30%
Other Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 2	$ 4
Long-term Debt, Weighted Average Interest Rate, at Point in Time	7.68%	0.05%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt	$ 75	$ 265
Long-term Debt, Weighted Average Interest Rate, at Point in Time	2.40%	3.76%
5% Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 0	$ 600
Debt Instrument, Interest Rate, Stated Percentage	5.00%
6.375% Notes due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 0	700
Debt Instrument, Interest Rate, Stated Percentage	6.375%
8.125% Notes Due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 400	0
Debt Instrument, Interest Rate, Stated Percentage	8.125%
5.750% Senior Notes due 2027 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 500	$ 500
Debt Instrument, Interest Rate, Stated Percentage	5.75%	5.75%	5.75%
5.000% Senior Notes due 2028
Debt Instrument [Line Items]
Long-term debt	$ 650	$ 0
Debt Instrument, Interest Rate, Stated Percentage	5.00%	5.00%
6.125% Senior Notes due 2029 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 500	$ 500
Debt Instrument, Interest Rate, Stated Percentage	6.125%	6.125%	6.125%
5.250% Senior Notes due 2030
Debt Instrument [Line Items]
Long-term debt	$ 450	$ 0
Debt Instrument, Interest Rate, Stated Percentage	5.25%	5.25%
Term Loan [Member]
Debt Instrument [Line Items]
Long-term Debt, Current Maturities	$ 8	$ 8
Short-term Debt, Weighted Average Interest Rate, at Point in Time	2.65%	4.30%
Trade Receivables Securitization Facility [Member]
Debt Instrument [Line Items]
Short-term borrowings	$ 0	$ 270
Short-term Debt, Weighted Average Interest Rate, at Point in Time	0.00%	2.65%
Other Debt [Member]
Debt Instrument [Line Items]
Short-term borrowings	$ 0	$ 4
Short-term Debt, Weighted Average Interest Rate, at Point in Time	0.00%	2.82%

Debt Obligations Senior Secured

Debt Obligations Senior Secured Credit Facility (Details)	12 Months Ended
Debt Obligations Senior Secured Credit Facility (Details)	Dec. 31, 2020USD ($)Rate	Feb. 16, 2021USD ($)	Feb. 04, 2021	Dec. 31, 2019USD ($)
Debt Instrument [Line Items]
Long-term Debt	$ 3,318,000,000
Letters of Credit Outstanding, Amount	26,000,000
Long-term debt	$ 3,270,000,000			$ 3,277,000,000
Quarterly Payment of Term Loan Principal Amount	0.25%
Increase in Maximum Permitted Leverage Ratio due to Material Acquisitions	0.25
Available Additional Amount of Incremental Term Loan or Incremental Revolving Commitment	$ 150,000,000
Subsequent Event
Debt Instrument [Line Items]
Senior secured incremental term loan A facility		$ 1,455,000,000
Additional revolving commitments under senior secured credit facility		200,000,000
Senior secured incremental term loan B facility		245,000,000
Revolving credit facility under the senior secured credit facility		1,100,000,000
Senior secured bridge facility		$ 1,000,000,000
Period Five [Member]
Debt Instrument [Line Items]
Debt Instrument Covenant Consolidated Leverage Ratio	4.50
Period One [Member]
Debt Instrument [Line Items]
Debt Instrument Covenant Consolidated Leverage Ratio	4.25
Debt Instrument, Covenant, Maximum Spread on Consolidated Leverage Ratio	0.50
Period Two [Member]
Debt Instrument [Line Items]
Debt Instrument Covenant Consolidated Leverage Ratio	1
Period Three [Member]
Debt Instrument [Line Items]
Debt Instrument Covenant Consolidated Leverage Ratio	4
Debt Instrument, Covenant, Maximum Spread on Consolidated Leverage Ratio	0.50
Period Four [Member]
Debt Instrument [Line Items]
Debt Instrument Covenant Consolidated Leverage Ratio	1
Term Loan [Member]
Debt Instrument [Line Items]
Long-term debt	$ 733,000,000			740,000,000
Total Term Loan Balance Outstanding				$ 741,000,000
Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument Covenant Interest Coverage Ratio	4.75
Debt Instrument Covenant Maximum Consolidated Leverage Ratio	4.60
Secured Debt [Member] \| Subsequent Event
Debt Instrument [Line Items]
Debt Instrument Covenant Maximum Consolidated Leverage Ratio			5.50
Secured Debt [Member] \| Revolving [Member]
Debt Instrument [Line Items]
Secured Credit Facility Maximum Borrowing Amount	$ 1,100,000,000
Secured Debt [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Secured Credit Facility Maximum Borrowing Amount	750,000,000
Secured Debt [Member] \| Revolving Foreign [Member]
Debt Instrument [Line Items]
Secured Credit Facility Maximum Borrowing Amount	$ 400,000,000
Federal Funds Rate [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Base Rate [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.00%
Base Rate [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%
London Interbank Offered Rate (LIBOR) [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate \| Rate	2.50%
Maximum [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Margin for Base Rate Loans	2.25%
Maximum [Member] \| EURIBOR [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Margin for Base Rate Loans	1.25%
Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Margin for Base Rate Loans	1.25%
Minimum [Member] \| EURIBOR [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Margin for Base Rate Loans	0.25%

Debt Obligations Senior Unsecur

Debt Obligations Senior Unsecured Notes (Details) - USD ($) $ in Millions	Aug. 20, 2020	Apr. 13, 2020	Dec. 31, 2020	Dec. 31, 2019	Aug. 21, 2019	Dec. 19, 2013	Sep. 17, 2012
Debt Instrument [Line Items]
Long-term Debt			$ 3,318
Deferred financing fees written off			5
Debt Premium Cost Incurred			15
Long-term debt			$ 3,270	$ 3,277
5% Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt							$ 600
Debt instrument stated percentage			5.00%
Debt Instrument, Redemption Price, Percentage			100.00%
Long-term debt			$ 0	600
6.375% Notes due 2023 [Member]
Debt Instrument [Line Items]
Long-term Debt						$ 700
Debt instrument stated percentage			6.375%
Debt Instrument, Redemption Price, Percentage			102.125%
Long-term debt			$ 0	700
8.125% Notes Due 2025 [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 400
Debt instrument stated percentage			8.125%
Debt Instrument Redemption Price As Percentage of Principle Amount		100.00%
Percentage of Principle Amount Notes Were Sold At		100.00%
Long-term debt			$ 400	$ 0
8.125% Notes Due 2025 [Member] \| Twelve month period commencing on April 15, 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount		104.063%
8.125% Notes Due 2025 [Member] \| Twelve Month Period Commencing April 15, 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount		102.031%
8.125% Notes Due 2025 [Member] \| Twelve month period commencing on April 15, 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount		100.00%
6.125% Senior Notes due 2029 [Member]
Debt Instrument [Line Items]
Long-term Debt					$ 500
Debt instrument stated percentage			6.125%	6.125%	6.125%
Percentage of Principle Amount Notes Were Sold At					100.00%
Long-term debt			$ 500	$ 500
6.125% Senior Notes due 2029 [Member] \| Twelve month period commencing on September 1, 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount			103.063%
6.125% Senior Notes due 2029 [Member] \| Twelve Month Period Commencing September 1, 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount			102.042%
6.125% Senior Notes due 2029 [Member] \| Twelve month period commencing on September 1, 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount			101.021%
6.125% Senior Notes due 2029 [Member] \| Twelve month period commencing on September 1, 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount			100.00%
5.000% Senior Notes due 2028
Debt Instrument [Line Items]
Debt instrument stated percentage			5.00%	5.00%
Aggregate principal amount of Notes required to remaing outstanding	0.55
Date of equity offering offering when paying unsecured debt	180 days
Percentage of Principle Amount Notes Were Sold At	100.00%
Long-term debt			$ 650	$ 0
5.000% Senior Notes due 2028 \| From time to time, prior to October 1, 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount	40.00%
Debt Instrument, Redemption Price, Percentage	105.00%
5.000% Senior Notes due 2028 \| Prior to October 1, 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount	100.00%
5.000% Senior Notes due 2028 \| Twelve month period commencing on October 1, 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount	102.50%
5.000% Senior Notes due 2028 \| Twelve Month Period Commencing October 1, 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount	101.25%
5.000% Senior Notes due 2028 \| Twelve month period commencing on October 1, 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount	100.00%
5.250% Senior Notes due 2030
Debt Instrument [Line Items]
Debt instrument stated percentage			5.25%	5.25%
Aggregate principal amount of Notes required to remaing outstanding	0.55
Date of equity offering offering when paying unsecured debt	180 days
Percentage of Principle Amount Notes Were Sold At	100.00%
Long-term debt			$ 450	$ 0
5.250% Senior Notes due 2030 \| From time to time, prior to October 1, 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	105.25%
5.250% Senior Notes due 2030 \| Prior to October 1, 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount	100.00%
5.250% Senior Notes due 2030 \| Twelve month period commencing on October 1, 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount	102.625%
5.250% Senior Notes due 2030 \| Twelve Month Period Commencing October 1, 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount	101.75%
5.250% Senior Notes due 2030 \| Twelve Month Period Commencing October 1, 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount	100.875%
5.250% Senior Notes due 2030 \| Twelve Month Period Commencing October 1, 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount	100.00%
5.750% Senior Notes due 2027 [Member]
Debt Instrument [Line Items]
Long-term Debt					$ 500
Debt instrument stated percentage			5.75%	5.75%	5.75%
Debt Instrument Redemption Price As Percentage of Principle Amount			100.00%
Percentage of Principle Amount Notes Were Sold At					100.00%
Long-term debt			$ 500	$ 500
5.750% Senior Notes due 2027 [Member] \| Twelve month period commencing on September 1, 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount			102.875%
5.750% Senior Notes due 2027 [Member] \| Twelve month period commencing on September 1, 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount			101.438%
5.750% Senior Notes due 2027 [Member] \| Twelve month period commencing on September 1, 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price As Percentage of Principle Amount			100.00%
Guarantor Subsidiaries [Member] \| NCR International, Inc. [Member] \| 5% Notes Due 2022 [Member]
Debt Instrument [Line Items]
Debt instrument stated percentage			5.00%
Guarantor Subsidiaries [Member] \| NCR International, Inc. [Member] \| 6.375% Notes due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument stated percentage			6.375%
Guarantor Subsidiaries [Member] \| NCR International, Inc. [Member] \| 8.125% Notes Due 2025 [Member]
Debt Instrument [Line Items]
Debt instrument stated percentage			8.125%

Debt Obligations Debt Obligat_2

Debt Obligations Debt Obligations Receivables Securitization Facility (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Trade Receivables Securitization Facility, Maximum Borrowing Base	$ 300
Short-term borrowings	8	$ 282
Trade Receivables Securitization Facility, Collateral At Period End	$ 428	603
Federal Funds Rate [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Trade Receivables Securitization Facility [Member]
Debt Instrument [Line Items]
Short-term borrowings	$ 0	$ 270

Debt Obligations Maturities of

Debt Obligations Maturities of Long Term Debt (Details) $ in Millions	Dec. 31, 2020USD ($)
Maturities of Long Term Debt Disclosure [Abstract]
Long-term Debt	$ 3,318
Long-Term Debt, Maturity, Year One	8
Long-Term Debt, Maturity, Year Two	9
Long-Term Debt, Maturity, Year Three	7
Long-Term Debt, Maturity, Year Four	83
Long-Term Debt, Maturity, Year Five	408
Long-Term Debt, Maturity, after Year Five	$ 2,803

Debt Obligations Fair Value of

Debt Obligations Fair Value of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Debt Instrument, Fair Value Disclosure	$ 3,490	$ 3,700

Income Taxes - Income from Cont

Income Taxes - Income from Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
(Loss) Income Before Income Taxes [Abstract]
United States	$ (391)	$ (25)	$ (262)
Foreign	332	366	301
Income (loss) from continuing operations before income taxes	$ (59)	$ 341	$ 39

Income Taxes - Components of In

Income Taxes - Components of Income Tax (Benefit) Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
US Tax Reform, Provisional Tax Expense			$ 37
Current
Federal	$ (9)	$ 1	18
State	0	2	0
Foreign	68	78	42
Deferred
Federal	(108)	(19)	(2)
State	(6)	0	1
Foreign	2	(335)	14
Total income tax expense (benefit)	$ (53)	$ (273)	$ 73

Income Taxes - Income Tax Recon

Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income tax expense (benefit) at the U.S. federal tax rate of 35%		$ (12)	$ 72	$ 8
Foreign income tax differential		0	5	20
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount		(4)	3	2
U.S. permanent book/tax differences		2	3	0
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Meals and Entertainment, Amount		1	2	2
Effective Income Tax Rate Reconciliation, Executive Compensation		10	9	4
Employee Benefits and Share-based Compensation		3	2	3
Impact of intangible asset transfer		0	(245)	0
Effective Income Tax Rate Reconciliation, foreign derived intangible income deduction		0	(7)	(1)
Effective Income Tax Rate Reconciliation, Branch Status Change		0	(17)	(9)
Goodwill impairment		0	0	30
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Research and Development, Amount		(7)	(5)	(6)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		(4)	5	0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	[1]	(37)	(16)	16
US Tax Reform, Provisional Tax Expense		0	0	37
Gains/losses on entity liquidations tax impact		2	(12)	0
Effective Income Tax Rate Reconciliation, Change in Foreign Deferred Tax Assets Valuation Allowance, Amount		6	(74)	2
Change in liability for unrecognized tax benefits	[1]	(12)	4	(23)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		0	(1)	(11)
Other, net		(1)	(1)	(1)
Total income tax expense (benefit)		$ (53)	$ (273)	$ 73

[1]	(1) Does not include the impact of items included in the U.S. Tax Reform category

Income Taxes - Deferred Taxes (

Income Taxes - Deferred Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred Tax [Line Items]
Total net deferred income tax assets	$ 941	$ 796
Deferred tax assets, intangibles transferred		264
Deferred income tax assets
Employee pensions and other benefits	229	243
Other balance sheet reserves and allowances	272	182
Tax loss and credit carryforwards	667	625
Capitalized research and development	44	47
Deferred Tax Assets, Lease Liabilities	91	104
Deferred Tax Assets, Goodwill and Intangible Assets	123	127
Property, plant and equipment	11	11
Other	13	9
Total deferred income tax assets	1,450	1,348
Valuation allowance	(341)	(352)
Net deferred income tax assets	1,109	996
Deferred income tax liabilities
Deferred Tax Liabilities, Deferred Expense, Taxable Distribution	90	102
Capitalized software	78	98
Total deferred income tax liabilities	168	200
U.S. federal and foreign tax attribute carryforwards	1,600
Effective Income Tax Rate Reconciliation, Change in Foreign Deferred Tax Assets Valuation Allowance, Amount	6	(74)	$ 2
Effective Income Tax Rate Reconciliation, Change in U.S. Deferred Tax Assets Valuation Allowance, Amount	48
Income tax expense (benefit)	(53)	$ (273)	$ 73
Error correction, executive stock compensation; income tax
Deferred income tax liabilities
Income tax expense (benefit)	5
Error correction, provision for unrecognized tax benefits
Deferred income tax liabilities
Income tax expense (benefit)	6
Error correction, net out of period adjustment
Deferred income tax liabilities
Income tax expense (benefit)	5
Error correction, total fourth quarter correction
Deferred income tax liabilities
Income tax expense (benefit)	10
United States [Member]
Deferred Tax [Line Items]
Total net deferred income tax assets	469
Deferred income tax liabilities
Tax credit carryforward, amount	$ 279

Income Taxes - Unrecognized Tax

Income Taxes - Unrecognized Tax Benefit (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross unrecognized tax benefits - January 1	$ 121	$ 110	$ 196
Increases related to tax positions from prior years	15	7	9
Decreases related to tax positions from prior years	(6)	(4)	(50)
Increases related to tax provisions taken during the current year	6	14	9
Settlements with tax authorities	(23)	(5)	(45)
Lapses of statutes of limitation	(10)	(1)	(9)
Total Gross unrecognized tax benefits - December 31	103	121	110
Total amount of gross unrecognized tax benefits that would affect NCR's effective tax rate if realized	61
Recognized interest and penalties expense (benefit) associated with uncertain tax positions	5	2	$ 9
Interest and penalties accrued associated with uncertain tax positions	30	35
Undistributed Earnings of Foreign Subsidiaries		3,400
Deferred Tax Liabilities, Undistributed Foreign Earnings		$ 200
Minimum [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Significant change in unrecognized tax benefits is reasonably possible, estimated range of change, upper bound	10
Maximum [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Significant change in unrecognized tax benefits is reasonably possible, estimated range of change, upper bound	$ 13

Employee Stock Compensation P_3

Employee Stock Compensation Plans - Allocated Compensation, Assumptions and Shares Available (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock or Unit Expense	$ 78	$ 94	$ 65
Employee Stock Ownership Plan (ESOP), Compensation Expense	6	4	4
Stock or Unit Option Plan Expense	24	9	4
Total stock-based compensation (pre-tax)	108	107	73
Tax Benefit	(13)	(12)	(10)
Total stock-based compensation (net of tax)	$ 95	$ 95	$ 63
Stock Incentive Plan, 2006 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)	30
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Period of U.S. Treasury Yield	7 years
Stock Options [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Period of U.S. Treasury Yield		3 years
Performance Shares [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Period of U.S. Treasury Yield	1 year

Employee Stock Compensation P_4

Employee Stock Compensation Plans - Restricted Stock and Restricted Stock Units (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	34.63%	34.79%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	3 years 8 months 12 days	3 years 10 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Total unrecognized compensation	$ 43
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.34%	2.50%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 7.64	$ 8.07
Share-based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	50.00%
Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	50.00%
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Unvested shares, Beginning balance, Number of Shares (in shares)	4,456,000
Shares granted, Number of Shares (in shares)	5,391,000
Shares vested, Number of Shares (in shares)	(2,642,000)
Shares forfeited, Number of Shares (in shares)	(547,000)
Unvested shares, Ending balance, Number of Shares (in shares)	6,658,000	4,456,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Unvested shares, Beginning balance, Weighted Average Grant-Date Fair Value per Share (in dollars per share)	$ 28.18
Shares granted, Weighted Average Grant-Date Fair Value per Share (in dollars per share)	26.50	$ 24.31	$ 26.25
Shares vested, Weighted Average Grant-Date Fair Value per Share (in dollars per share)	28.03
Shares forfeited, Weighted Average Grant-Date Fair Value per Share (in dollars per share)	28.57
Unvested shares, Ending balance, Weighted Average Grant-Date Fair Value per Share (in dollars per share)	$ 26.84	$ 28.18
Total intrinsic value of shares vested and distributed	$ 77	$ 86	$ 90
Total unrecognized compensation	$ 88
Total unrecognized compensation cost, period of recognition	10 months 24 days
Restricted Stock, Service-based [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Shares granted, Number of Shares (in shares)	825,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Shares granted, Weighted Average Grant-Date Fair Value per Share (in dollars per share)	$ 30.43
Restricted Stock, Performance-based [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period	12 months
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Shares granted, Number of Shares (in shares)	4,566,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Shares granted, Weighted Average Grant-Date Fair Value per Share (in dollars per share)	$ 25.79
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	53.64%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Unvested shares, Ending balance, Weighted Average Grant-Date Fair Value per Share (in dollars per share)	$ 21.74
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	0.16%
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions, Volatility Rate Term	3 years
Minimum [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	48 months
Minimum [Member] \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Period of U.S. Treasury Yield	1 year
Maximum [Member] \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Period of U.S. Treasury Yield	2 years

Employee Stock Compensation P_5

Employee Stock Compensation Plans - Other Share-based Plans (Details) - Employee Stock [Member] - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employees purchased (in shares)	1.3	0.8	0.7
Employees purchased	$ 21	$ 18	$ 17
Shares authorized (in shares)	4
Shares remain unissued (in shares)	7.6

Employee Stock Compensation P_6

Employee Stock Compensation Plans - Stock Options (Details) - USD ($) $ / shares in Units, shares in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 36.26
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Total unrecognized compensation	$ 43,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 7.64	$ 8.07
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.34%	2.50%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	34.63%	34.79%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	3 years 8 months 12 days	3 years 10 months 24 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, Beginning balance, Shares Under Option (in shares)	4,559
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	5,871
Vested, Shares Under Option (in shares)	(105)
Outstanding, Ending balance, Shares Under Option (in shares)	9,798	4,559
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period	527
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding, Beginning balance, Weighted Average Exercise Price per Share (in dollars per share)	$ 28.08
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	36.26
Vested, Weighted Average Exercise Price per Share (in dollars per share)	21.82
Outstanding, Ending balance, Weighted Average Exercise Price per Share (in dollars per share)	32.82	$ 28.08
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price	$ 32.31
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding, Weighted Average Remaining Contratual Term (in years)	5 years 6 months
Outstanding, Aggregate Intrinsic Value	$ 50.01
Exercisable, Shares Under Option (in shares)	1,820
Exercisable, Weighted Average Exercise Price per Share (in dollars per share)	$ 28.62
Exercisable, Weighted Average Remaining Contractual Term (in years)	4 years 4 months 6 days
Exercisable, Aggregate Intrinsic Value	$ 16.28
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Fully vested and expected to vest, Shares Under Option (in shares)	7,978
Fully vested and expected to vest, Weighted Average Exercise Price per Share (in dollars per share)	$ 33.78
Fully vested and expected to vest, Weighted Average Remaining Contractual Term (in years)	5 years 9 months 7 days
Fully vested and expected to vest, Aggregate Intrinsic Value	$ 33.73
Total intrinsic value of all options exercised	1,000,000	$ 1,000,000	$ 4,000,000
Cash received from option exercises	2,000,000	2,000,000	4,000,000
Share-based Payment Arrangement, Exercise of Option, Tax Benefit	$ 0	$ 0	$ 1,000,000
Total unrecognized compensation cost, period of recognition	1 year 1 month 6 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Period of U.S. Treasury Yield	7 years
Stock Options [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Vesting period	1 year
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Period of U.S. Treasury Yield		3 years
Stock Options [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Vesting period	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Period of U.S. Treasury Yield		5 years

Employee Benefit Plans - Change

Employee Benefit Plans - Change in Benefit Obligation and Plan Assets, Funded Status, Amounts Recognized in Balance Sheet, and ABO in Excess of Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Amounts recognized in the Consolidated Balance Sheets
Noncurrent assets	$ 199	$ 178
Pension Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation as of January 1	3,128	2,855
Net service cost	6	7	$ 7
Interest cost	64	85	81
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment	5	0
Actuarial loss	254	341
Benefits paid	(217)	(180)
Plan participant contributions	1	1
Currency translation adjustments	72	19
Benefit obligation as of December 31	3,313	3,128	2,855
Accumulated benefit obligation as of December 31	3,302	3,117
Amounts recognized in the Consolidated Balance Sheets
Defined Benefit Plan, Benefit Obligation	(667)	(693)
Noncurrent assets	199	178
Current liabilities	(15)	(13)
Noncurrent liabilities	(851)	(858)
Net amounts recognized	(667)	(693)
Prior service cost	24	20
Total	24	20
Amounts recognized in the accumulated other comprehensive loss
Pension plans with accumulated benefit obligations in excess of plan assets, projected benefit obligation	2,366	2,222
Pension plans with accumulated benefit obligations in excess of plan assets, accumulated benefit obligation	2,363	2,217
Pension plans with accumulated benefit obligations in excess of plan assets, fair value of plan assets	1,531	1,380
U.S. Pension Benefits
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation as of January 1	1,954	1,763
Net service cost	0	0	0
Interest cost	51	66	61
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment	0	0
Actuarial loss	168	229
Benefits paid	(106)	(104)
Plan participant contributions	0	0
Currency translation adjustments	0	0
Benefit obligation as of December 31	2,067	1,954	1,763
Accumulated benefit obligation as of December 31	2,067	1,954
Amounts recognized in the Consolidated Balance Sheets
Defined Benefit Plan, Benefit Obligation	(539)	(577)
Noncurrent assets	0	0
Current liabilities	0	0
Noncurrent liabilities	(539)	(577)
Net amounts recognized	(539)	(577)
Prior service cost	0	0
Total	$ 0	$ 0
Amounts recognized in the accumulated other comprehensive loss
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted-Average Interest Crediting Rate	1.10%	1.20%
Foreign Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation as of January 1	$ 1,174	$ 1,092
Net service cost	6	7	7
Interest cost	13	19	20
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment	5	0
Actuarial loss	86	112
Benefits paid	(111)	(76)
Plan participant contributions	1	1
Currency translation adjustments	72	19
Benefit obligation as of December 31	1,246	1,174	1,092
Accumulated benefit obligation as of December 31	1,235	1,163
Amounts recognized in the Consolidated Balance Sheets
Defined Benefit Plan, Benefit Obligation	(128)	(116)
Noncurrent assets	199	178
Current liabilities	(15)	(13)
Noncurrent liabilities	(312)	(281)
Net amounts recognized	(128)	(116)
Prior service cost	24	20
Total	24	20
Postretirement Benefits [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation as of January 1	17	18
Interest cost	0	1	0
Actuarial loss	0	0
Benefits paid	(1)	(2)
Plan participant contributions	0	0
Benefit obligation as of December 31	16	17	18
Amounts recognized in the Consolidated Balance Sheets
Defined Benefit Plan, Benefit Obligation	(16)	(17)
Current liabilities	(2)	(2)
Noncurrent liabilities	(14)	(15)
Net amounts recognized	(16)	(17)
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax	6	7
Prior service cost	0	(3)
Total	6	4
Postemployment Benefit Plans Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation as of January 1	126	139
Net service cost	42	31	43
Interest cost	3	3	3
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment	(4)	0
Actuarial loss	7	(11)
Benefits paid	(39)	(35)
Currency translation adjustments	3	(1)
Benefit obligation as of December 31	138	126	$ 139
Amounts recognized in the Consolidated Balance Sheets
Defined Benefit Plan, Benefit Obligation	(138)	(126)
Current liabilities	(32)	(30)
Noncurrent liabilities	(106)	(96)
Net amounts recognized	(138)	(126)
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax	(23)	(38)
Prior service cost	(8)	(6)
Total	$ (31)	$ (44)

Employee Benefit Plans - Chan_2

Employee Benefit Plans - Change in Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 1,118	$ 1,058	$ 953
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	99	128
Company contributions	19	23
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(111)	(76)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	53	29
Plan participant contributions	0	1
U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,528	1,377	1,269
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	187	212
Company contributions	70	0
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(106)	(104)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	0	0
Plan participant contributions	0	0
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	2,646	2,435	$ 2,222
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	286	340
Company contributions	89	23
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(217)	(180)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	53	29
Plan participant contributions	$ 0	$ 1

Employee Benefit Plans - Fair V

Employee Benefit Plans - Fair Value of Plan Assets (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation		$ 2,366	$ 2,222
Defined Benefit Plan, Benefit Obligation		(667)	(693)
Defined Benefit Plan, Plan Assets, Amount		2,646	2,435	$ 2,222
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation		2,363	2,217
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets		1,531	1,380
U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation		(539)	(577)
Defined Benefit Plan, Plan Assets, Amount		1,528	1,377	1,269
U.S. Pension Benefits \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		28	43
U.S. Pension Benefits \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		1,232	1,143
U.S. Pension Benefits \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		0	0
U.S. Pension Benefits \| Equity Securities, Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	0	0
U.S. Pension Benefits \| Equity Securities, Common Stock [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	0	0
U.S. Pension Benefits \| Equity Securities, Common Stock [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	0	0
U.S. Pension Benefits \| Equity Securities, Common Stock [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	0	0
U.S. Pension Benefits \| Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[2]	221	209
U.S. Pension Benefits \| Government Debt Securities [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[2]	0	0
U.S. Pension Benefits \| Government Debt Securities [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[2]	221	209
U.S. Pension Benefits \| Government Debt Securities [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[2]	0	0
U.S. Pension Benefits \| Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[3]	1,011	934
U.S. Pension Benefits \| Corporate Debt Securities [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[3]	0	0
U.S. Pension Benefits \| Corporate Debt Securities [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[3]	1,011	934
U.S. Pension Benefits \| Corporate Debt Securities [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[3]	0	0
U.S. Pension Benefits \| Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	5	12
U.S. Pension Benefits \| Money Market Funds [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Money Market Funds [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Money Market Funds [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Equities [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Equities [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Equities [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	167	157
U.S. Pension Benefits \| Common and Commingled Trusts, Bonds [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Bonds [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Bonds [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Short Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	94	19
U.S. Pension Benefits \| Common and Commingled Trusts, Short Term Investments [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Short Term Investments [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Short Term Investments [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Balanced [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Balanced [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Balanced [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Common and Commingled Trusts, Balanced [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Partnership And Joint Venture Interests, Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	1
U.S. Pension Benefits \| Partnership And Joint Venture Interests, Real Estate [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
U.S. Pension Benefits \| Partnership And Joint Venture Interests, Real Estate [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
U.S. Pension Benefits \| Partnership And Joint Venture Interests, Real Estate [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
U.S. Pension Benefits \| Partnership And Joint Venture Interests, Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	2	2
U.S. Pension Benefits \| Partnership And Joint Venture Interests, Other [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
U.S. Pension Benefits \| Partnership And Joint Venture Interests, Other [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
U.S. Pension Benefits \| Partnership And Joint Venture Interests, Other [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
U.S. Pension Benefits \| Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	28	43
U.S. Pension Benefits \| Mutual Funds [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	28	43
U.S. Pension Benefits \| Mutual Funds [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Mutual Funds [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Insurance Products [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Insurance Products [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Insurance Products [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Insurance Products [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Real Estate And Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
U.S. Pension Benefits \| Real Estate And Other [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
U.S. Pension Benefits \| Real Estate And Other [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
U.S. Pension Benefits \| Real Estate And Other [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
U.S. Pension Benefits \| Not Subject to Leveling [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		268	191
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Equity Securities, Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	0	0
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[2]	0	0
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[3]	0	0
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	5	12
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Common and Commingled Trusts, Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Common and Commingled Trusts, Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	167	157
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Common and Commingled Trusts, Short Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	94	19
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Common and Commingled Trusts, Balanced [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Partnership And Joint Venture Interests, Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	1
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Partnership And Joint Venture Interests, Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	2	2
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Insurance Products [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
U.S. Pension Benefits \| Not Subject to Leveling [Member] \| Real Estate And Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation		(128)	(116)
Defined Benefit Plan, Plan Assets, Amount		1,118	1,058	953
Foreign Plan [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		57	53
Foreign Plan [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		105	104
Foreign Plan [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		152	131	$ 129
Foreign Plan [Member] \| Equity Securities, Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	57	53
Foreign Plan [Member] \| Equity Securities, Common Stock [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	57	53
Foreign Plan [Member] \| Equity Securities, Common Stock [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	0	0
Foreign Plan [Member] \| Equity Securities, Common Stock [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	0	0
Foreign Plan [Member] \| Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[2]	0	0
Foreign Plan [Member] \| Government Debt Securities [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[2]	0	0
Foreign Plan [Member] \| Government Debt Securities [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[2]	0	0
Foreign Plan [Member] \| Government Debt Securities [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[2]	0	0
Foreign Plan [Member] \| Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[3]	104	103
Foreign Plan [Member] \| Corporate Debt Securities [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[3]	0	0
Foreign Plan [Member] \| Corporate Debt Securities [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[3]	104	103
Foreign Plan [Member] \| Corporate Debt Securities [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[3]	0	0
Foreign Plan [Member] \| Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	10	10
Foreign Plan [Member] \| Money Market Funds [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Money Market Funds [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Money Market Funds [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	149	184
Foreign Plan [Member] \| Common and Commingled Trusts, Equities [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Equities [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Equities [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	515	470
Foreign Plan [Member] \| Common and Commingled Trusts, Bonds [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Bonds [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Bonds [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Short Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	40	21
Foreign Plan [Member] \| Common and Commingled Trusts, Short Term Investments [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Short Term Investments [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Short Term Investments [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Balanced [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	90	85
Foreign Plan [Member] \| Common and Commingled Trusts, Balanced [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Balanced [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Common and Commingled Trusts, Balanced [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Partnership And Joint Venture Interests, Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Partnership And Joint Venture Interests, Real Estate [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Partnership And Joint Venture Interests, Real Estate [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Partnership And Joint Venture Interests, Real Estate [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Partnership And Joint Venture Interests, Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Partnership And Joint Venture Interests, Other [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Partnership And Joint Venture Interests, Other [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Partnership And Joint Venture Interests, Other [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Mutual Funds [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Mutual Funds [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Mutual Funds [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Insurance Products [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	1	1
Foreign Plan [Member] \| Insurance Products [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Insurance Products [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	1	1
Foreign Plan [Member] \| Insurance Products [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Real Estate And Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	152	131
Foreign Plan [Member] \| Real Estate And Other [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Real Estate And Other [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Real Estate And Other [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	152	131
Foreign Plan [Member] \| Not Subject to Leveling [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount		804	770
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Equity Securities, Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[1]	0	0
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[2]	0	0
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[3]	0	0
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	10	10
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Common and Commingled Trusts, Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	149	184
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Common and Commingled Trusts, Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	515	470
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Common and Commingled Trusts, Short Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	40	21
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Common and Commingled Trusts, Balanced [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	90	85
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Partnership And Joint Venture Interests, Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Partnership And Joint Venture Interests, Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	0	0
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Insurance Products [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[4]	0	0
Foreign Plan [Member] \| Not Subject to Leveling [Member] \| Real Estate And Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	[5]	$ 0	$ 0

[1]	Common stocks are valued based on quoted market prices at the closing price as reported on the active market on which the individual securities are traded.
[2]	Government securities are valued based on yields currently available on comparable securities of issuers with similar credit ratings. When quoted prices are not available for identical or similar securities, the security is valued under a discounted cash flows approach that maximizes observable inputs, such as current yields on similar instruments but includes adjustments for certain risks that may not be observable, such as credit and liquidity risks.
[3]	Corporate debt is valued primarily based on observable market quotations for similar bonds at the closing price reported on the active market on which the individual securities are traded. When such quoted prices are not available, the bonds are valued using a discounted cash flows approach using current yields on similar instruments of issuers with similar credit ratings.
[4]	Common/collective trusts and registered investment companies (RICs) such as mutual funds are valued using a Net Asset Value (NAV) provided by the manager of each fund. The NAV is based on the underlying net assets owned by the fund, divided by the number of shares or units outstanding. The fair value of the underlying securities within the fund, which are generally traded on an active market, are valued at the closing price reported on the active market on which those individual securities are traded. For investments not traded on an active market, or for which a quoted price is not publicly available, a variety of unobservable valuation methodologies, including discounted cash flow, market multiple and cost valuation approaches, are employed by the fund manager or independent third party to value investments.
[5]	Partnership/joint ventures are valued based on the fair value of the underlying securities within the fund, which include investments both traded on an active market and not traded on an active market. For those investments that are traded on an active market, the values are based on the closing price reported on the active market on which those individual securities are traded. For investments not traded on an active market, or for which a quoted price is not publicly available, a variety of unobservable valuation methodologies, including discounted cash flow, market multiples and cost valuation approaches, are employed by the fund manager to value investments.

Employee Benefit Plans - Net Pe

Employee Benefit Plans - Net Periodic Benefit (Income) Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Postemployment Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Net service cost	$ 42	$ 31	$ 43
Interest cost	3	3	3
Amortization of prior service cost	(2)	(2)	(5)
Actuarial loss (gain)	(4)	(3)	(1)
Defined Benefit Plan Net Periodic Benefit Costs, Subtotal	39	29	40
Postretirement Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Interest cost	0	1	0
Amortization of prior service cost	(3)	(5)	(5)
Actuarial loss (gain)	(1)	0	1
Net periodic benefit cost	(2)	(4)	(4)
Pension Plan [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Net service cost	6	7	7
Interest cost	64	85	81
Expected return on plan assets	(64)	(74)	(75)
Amortization of prior service cost	1	1	1
Actuarial loss (gain)	34	75	(45)
Net periodic benefit cost	41	94	(31)
U.S. Pension Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Net service cost	0	0	0
Interest cost	51	66	61
Expected return on plan assets	(36)	(43)	(43)
Amortization of prior service cost	0	0	0
Actuarial loss (gain)	18	60	(29)
Net periodic benefit cost	33	83	(11)
International Pension Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Net service cost	6	7	7
Interest cost	13	19	20
Expected return on plan assets	(28)	(31)	(32)
Amortization of prior service cost	1	1	1
Actuarial loss (gain)	16	15	(16)
Net periodic benefit cost	$ 8	$ 11	$ (20)

Employee Benefit Plans - Assump

Employee Benefit Plans - Assumptions, Market-Related Value, and Unrecognized Loss (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate, Service Cost		1.60%	1.40%
Defined Benefit Plan, Assumptions used Calculating Net Periodic Benefit Cost, Discount Rate, Interest Cost		1.80%	1.60%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	0.90%	1.40%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	0.90%	0.90%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		3.20%	3.00%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase		1.00%	0.90%
U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions used Calculating Net Periodic Benefit Cost, Discount Rate, Interest Cost		3.80%	3.20%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.40%	3.10%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	2.70%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets	2.80%	3.60%	3.10%
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate, Service Cost	0.70%	1.60%	1.40%
Defined Benefit Plan, Assumptions used Calculating Net Periodic Benefit Cost, Discount Rate, Interest Cost	2.10%	3.10%	2.60%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	1.80%	2.50%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	0.90%	0.90%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets	2.70%	3.40%	3.10%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase	0.90%	1.00%	0.90%
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate, Service Cost	0.70%
Defined Benefit Plan, Assumptions used Calculating Net Periodic Benefit Cost, Discount Rate, Interest Cost	1.20%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	1.40%	2.50%	3.70%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	2.50%	3.70%	3.10%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets	2.60%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase	0.90%
Postemployment Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	1.40%	1.80%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	1.80%	2.40%	2.30%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	2.00%	1.80%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase	1.80%	1.90%	1.90%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Involuntary Turnover Rate	3.80%	3.80%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Involuntary Turnover Rate	3.80%	4.30%	4.80%
Before Age 65 [Member] \| Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year	6.50%	6.70%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	5.00%	5.00%
After Age 65 [Member] \| Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year	5.80%	5.90%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	5.00%	5.00%

Employee Benefit Plans - Actual

Employee Benefit Plans - Actual and Target Allocations (Details)	Dec. 31, 2020	Dec. 31, 2019
Foreign Plan [Member]
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Allocation of plan asset, percentage	100.00%	100.00%
Foreign Plan [Member] \| Equity Securities [Member]
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Allocation of plan asset, percentage	19.00%	23.00%
Foreign Plan [Member] \| Debt Securities [Member]
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Allocation of plan asset, percentage	58.00%	56.00%
Foreign Plan [Member] \| Real Estate [Member]
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Allocation of plan asset, percentage	14.00%	12.00%
Foreign Plan [Member] \| Other [Member]
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Allocation of plan asset, percentage	9.00%	9.00%
U.S. Pension Benefits
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Allocation of plan asset, percentage	100.00%	100.00%
U.S. Pension Benefits \| Equity Securities [Member]
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Allocation of plan asset, percentage	0.00%	0.00%
U.S. Pension Benefits \| Debt Securities [Member]
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Allocation of plan asset, percentage	94.00%	99.00%
U.S. Pension Benefits \| Real Estate [Member]
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Allocation of plan asset, percentage	0.00%	0.00%
U.S. Pension Benefits \| Other [Member]
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Allocation of plan asset, percentage	6.00%	1.00%
Minimum [Member] \| Foreign Plan [Member] \| Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	12.00%
Minimum [Member] \| Foreign Plan [Member] \| Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	54.00%
Minimum [Member] \| Foreign Plan [Member] \| Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	6.00%
Minimum [Member] \| Foreign Plan [Member] \| Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	4.00%
Minimum [Member] \| U.S. Pension Benefits \| Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Minimum [Member] \| U.S. Pension Benefits \| Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	95.00%
Minimum [Member] \| U.S. Pension Benefits \| Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Minimum [Member] \| U.S. Pension Benefits \| Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Maximum [Member] \| Foreign Plan [Member] \| Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	27.00%
Maximum [Member] \| Foreign Plan [Member] \| Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	72.00%
Maximum [Member] \| Foreign Plan [Member] \| Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	14.00%
Maximum [Member] \| Foreign Plan [Member] \| Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	9.00%
Maximum [Member] \| U.S. Pension Benefits \| Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Maximum [Member] \| U.S. Pension Benefits \| Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	100.00%
Maximum [Member] \| U.S. Pension Benefits \| Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	2.00%
Maximum [Member] \| U.S. Pension Benefits \| Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	3.00%

Employee Benefit Plans - Unobse

Employee Benefit Plans - Unobservable Input Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Foreign Plan [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets as of January 1	$ 1,058	$ 953
Fair value of plan assets as of December 31	1,118	1,058
Foreign Plan [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets as of January 1	131	129
Realized and unrealized gains and losses, net	(21)	2
Purchases, sales and settlements, net	0	0
Transfers, net	0	0
Fair value of plan assets as of December 31	152	131
U.S. Pension Benefits
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets as of January 1	1,377	1,269
Fair value of plan assets as of December 31	1,528	1,377
U.S. Pension Benefits \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of plan assets as of January 1	0
Fair value of plan assets as of December 31	$ 0	$ 0

Employee Benefit Plans - Estima

Employee Benefit Plans - Estimated Future Benefit Payments (Details) $ in Millions	Dec. 31, 2020USD ($)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2019	$ 162
2020	160
2021	161
2022	165
2023	165
2024 - 2028	813
U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2019	109
2020	110
2021	112
2022	114
2023	115
2024 - 2028	571
International Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2019	53
2020	50
2021	49
2022	51
2023	50
2024 - 2028	242
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2019	2
2020	1
2021	1
2022	1
2023	1
2024 - 2028	3
Postemployment Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2019	39
2020	17
2021	16
2022	15
2023	14
2024 - 2028	$ 62

Employee Benefit Plans - Saving

Employee Benefit Plans - Savings Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Contribution, U.S. Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost	$ 32	$ 27	$ 27
Defined Contribution, All Other Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost	$ 25	$ 25	$ 24

Employee Benefit Plans Cash Con

Employee Benefit Plans Cash Contributions (Details) $ in Millions	Dec. 31, 2020USD ($)
Postemployment Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	$ 39
Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	2
Foreign Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	$ 25

Employee Benefit Plans - Amount

Employee Benefit Plans - Amounts to be Recognized (Details) $ in Millions	Dec. 31, 2020USD ($)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service cost (income)	$ 1
Actuarial loss	0
Postemployment Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service cost (income)	(2)
Actuarial loss	(2)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service cost (income)	1
Actuarial loss	0
U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service cost (income)	0
Actuarial loss	0
International Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service cost (income)	1
Actuarial loss	$ 0

Commitments and Contingencies L

Commitments and Contingencies Loss Contingencies (Details) $ in Millions	Mar. 29, 2018USD ($)	Dec. 31, 2020USD ($)number_of_companiesaffiliate_corporationsfacilitydefendantentity	Dec. 31, 2019USD ($)
Nashville Tornado [Member]
Loss Contingencies [Line Items]
Inventory Write-down		$ 118
Insurance Recoveries		102
Insurance Settlements Receivable		16
Incremental costs incurred in connection with natural disaster		26
Insurance proceeds for incremental expenses incurred		8
Insurance Settlement Receivable for other expenses incurred in connection with Natural Disaster		$ 18
Fox River Site [Member]
Loss Contingencies [Line Items]
Portion Of Costs Below Threshold, Percentage		45.00%
Portion Of Costs Exceeding Threshold, Percentage		40.00%
Fox River Site [Member]
Loss Contingencies [Line Items]
Number of Potentially Responsible Parties \| entity		8
Number of Previously Owned Carbonless Copy Paper Manufacturing Facilities \| facility		2
Threshold For Environmental Cleanup Costs		$ 75
BAT And API Funding Obligation Under The Cost Sharing Agreement		50.00%
BAT And API Obligation Under The Cost Sharing Agreement		60.00%
Receivable under Funding Agreement		$ 54	$ 53
Gross Loss Contingency Accrual		6	5
Net Loss Contingency Accrual		28	16
Total Amount Received from Settlements with Insurance Carriers			202
General Contractor Arbitration [Member] \| Fox River Site [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		10
General Contractor Arbitration [Member] \| Fox River Site [Member] \| Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		46
General Contractor Arbitration [Member] \| Fox River Site [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		$ 53
Kalamazoo River Site [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value Removed by Court	$ 55
Loss Contingency, Damages Sought, Value	$ 105
Additional Companies Receiving General Notice Letters \| number_of_companies		3
Total Additional Defendants \| defendant		2
Total Corporation Plaintiffs \| affiliate_corporations		3
Total Past Costs Being Tried		$ 50
Loss Contingency Accrual		164	81
Ebina [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual		20	19
Fox River LLC [Member] \| Fox River Site [Member]
Loss Contingencies [Line Items]
Funding Remainder Other Current Asset		0	$ 0
BCG Matter [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		80
Kalamazoo River Site [Member] \| Minimum [Member]
Loss Contingencies [Line Items]
Anticipated contribution from co-obligors and indemnitors		70
Kalamazoo River Site [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Anticipated contribution from co-obligors and indemnitors		$ 140

Commitments and Contingencies_2

Commitments and Contingencies Warranty Reserve Detail (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Product Warranty Liability [Line Items]
Standard Product Warranty Accrual	$ 18	$ 21	$ 26	$ 26
Standard Product Warranty Accrual, Increase for Warranties Issued	30	37	42
Standard Product Warranty Accrual, Decrease for Payments	$ 33	$ 42	$ 42

Leasing Lease Balances (Details

Leasing Lease Balances (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 344	$ 391
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	55	38
Finance Lease, Right-Of-Use Asset, Accumulated Depreciation	18	5
Lease, Right-of-Use Asset	381	424
Finance Lease, Liability, Current	15	10
Operating Lease, Liability, Noncurrent	325	369
Finance Lease, Liability, Noncurrent	23	25
Lease, Liability	448	495
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Noncurrent	325	369
Property Subject to Operating Lease
Leases [Abstract]
Operating Lease, Liability, Current	85	91
Operating Lease, Liability, Noncurrent	325
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Noncurrent	325
Operating Lease, Liability, Current	$ 85	$ 91

Leasing Lease Costs (Details)

Leasing Lease Costs (Details) - USD ($) $ in Millions	12 Months Ended
Leasing Lease Costs (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating Lease, Cost	$ 125	$ 137
Finance Lease, Right-of-Use Asset, Amortization	13	5
Finance Lease, Interest Expense	1	1
Short-term Lease, Cost	5	5
Variable Lease, Cost	27	30
Lease, Cost	$ 171	$ 178	$ 148

Leasing Supplemental Cash Flow

Leasing Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating Lease, Payments	$ 128	$ 141
Finance Lease, Interest Payment on Liability	2	1
Finance Lease, Principal Payments	13	4	$ 0
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	31	45
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 15	$ 33

Leasing Present Value of Lease

Leasing Present Value of Lease Liabilities (Details) $ in Millions	Dec. 31, 2020USD ($)
Leases [Abstract]
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year	$ 108
Finance Lease, Liability, to be Paid, Remainder of Fiscal Year	16
Lessee, Operating Lease, Liability, to be Paid, Year Two	77
Finance Lease, Liability, to be Paid, Year Two	15
Lessee, Operating Lease, Liability, to be Paid, Year Three	51
Finance Lease, Liability, to be Paid, Year Three	8
Lessee, Operating Lease, Liability, to be Paid, Year Four	42
Finance Lease, Liability, to be Paid, Year Four	1
Lessee, Operating Lease, Liability, to be Paid, Year Five	35
Finance Lease, Liability, to be Paid, Year Five	0
Lessee, Operating Lease, Liability, to be Paid, after Year Five	240
Finance Lease, Liability, to be Paid, after Year Five	0
Lessee, Operating Lease, Liability, to be Paid	553
Finance Lease, Liability, Payment, Due	40
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(143)
Finance Lease, Liability, Undiscounted Excess Amount	(2)
Operating Lease, Liability	410
Finance Lease, Liability	$ 38

Leasing Narrative (Details)

Leasing Narrative (Details) - Europe [Member] $ in Millions	Dec. 31, 2020USD ($)
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Lease Not yet Commenced, Amount	$ 74
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	10 years

Leasing Weighted Average Lease

Leasing Weighted Average Lease Term and Interest Rates (Details)	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	8 years 8 months 12 days	8 years 10 months 24 days
Finance Lease, Weighted Average Remaining Lease Term	2 years 8 months 12 days	3 years 4 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	6.45%	6.42%
Finance Lease, Weighted Average Discount Rate, Percent	4.59%	3.72%

Series A Preferred Stock (Detai

Series A Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Oct. 12, 2020	Oct. 06, 2020	Sep. 18, 2019	Mar. 17, 2017	Dec. 04, 2015
Class of Stock [Line Items]
Series A preferred shares, shares issued	300,000	400,000
Deemed Dividend on Preferred Stock Redemption	$ (12)	$ (67)
Financial instruments subject to redemption, settlement terms, maximum number of shares	9,200,000	13,300,000
Dividends, Preferred Stock, Cash	$ 9	$ 0	$ 0
Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Series A preferred shares, shares issued								820,000
Aggregate purchase price								$ 820
Stated Value Of Preferred Shares Per Share		$ 1,000
Direct Issuance Expenses								$ 26
Dividends, Preferred Stock, Paid-in-kind	$ 10	$ 43	$ 46
Secondary offering by the preferred shareholders							342,000
Redeemed Shares of Preferred Stock				65,365	67,000	512,221	90,000
Repurchase price per share of common stock upon conversion							$ 48.47
Dividend Rate for preferred shares								5.50%
Conversion price per preferred share								$ 30
Conversion rate per preferred share	33.333
Blackstone Shares Converted into Common Shares						237,673
Cash Paid for the Redemption of Preferred Stock				$ 72	$ 72	$ 302
Stock Issued During Period, Shares, Conversion of Convertible Securities	9,160,000
Retained Earnings [Member]
Class of Stock [Line Items]
Deemed Dividend on Preferred Stock Redemption	$ (12)	$ (67)

Derivatives and Hedging Instr_3

Derivatives and Hedging Instruments Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)currency
Derivative [Line Items]
Currency Exposure, Number of Functional Currencies \| currency	50
Maximum Period For Cash Flow Hedging Activity	15 months
Foreign Exchange Contract [Member]
Derivative [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax \| $	$ 0

Derivatives and Hedging Instr_4

Derivatives and Hedging Instruments - Derivative Fair Values (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	$ 0	$ 2
Derivative Liabilities, Fair Value	1	1
Derivatives designated as hedging instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	0	1
Derivative Liabilities, Fair Value	0	0
Derivatives not designated as hedging instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	0	1
Derivative Liabilities, Fair Value	1	1
Derivatives not designated as hedging instrument [Member] \| Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value		1
Interest Rate Swap [Member] \| Derivatives designated as hedging instrument [Member] \| Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value		0
Foreign Exchange Contract [Member] \| Derivatives designated as hedging instrument [Member] \| Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	0	55
Derivative Assets, Fair Value	0	1
Foreign Exchange Contract [Member] \| Derivatives designated as hedging instrument [Member] \| Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	0
Derivative Liabilities, Fair Value	0	0
Foreign Exchange Contract [Member] \| Derivatives not designated as hedging instrument [Member] \| Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	150	71
Derivative Assets, Fair Value	0
Foreign Exchange Contract [Member] \| Derivatives not designated as hedging instrument [Member] \| Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	425	264
Derivative Liabilities, Fair Value	$ 1	$ 1

Derivatives and Hedging Instr_5

Derivatives and Hedging Instruments - Gain (Loss) on Derivatives (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on derivatives	$ (8)	$ 6	$ 11
Foreign Exchange Derivative [Member] \| Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on derivatives	(8)	6	11
Foreign Exchange Derivative [Member] \| Cost of Products [Member] \| Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 7	$ (8)	$ (7)

Derivatives and Hedging Instr_6

Derivatives and Hedging Instruments - Gain (Loss) on Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other (Expense) Income, Net [Member] \| Foreign Exchange Derivative [Member]
Derivative [Line Items]
Amount of Gain (Loss) Recognized in the Condensed Consolidated Statement of Operations	$ 22	$ (8)	$ (9)

Fair Value of Assets and Liab_3

Fair Value of Assets and Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Method Investment, Other than Temporary Impairment	$ 7	$ 0	$ 0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	22	15
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	22	15
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Available-for-sale Securities	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0	2
Assets, Fair Value Disclosure	2	2
Foreign Currency Contracts, Liability, Fair Value Disclosure	1	1
Financial and Nonfinancial Liabilities, Fair Value Disclosure	1	1
Available-for-sale Securities	2	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	0	0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Available-for-sale Securities	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	22	15
Foreign Currency Contract, Asset, Fair Value Disclosure	0	2
Assets, Fair Value Disclosure	24	17
Foreign Currency Contracts, Liability, Fair Value Disclosure	1	1
Financial and Nonfinancial Liabilities, Fair Value Disclosure	1	1
Available-for-sale Securities	$ 2	$ 0

Fair Value of Assets and Liab_4

Fair Value of Assets and Liabilities Assets Measured at Fair Value on a Non-recurring basis (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Impairment Charges	$ 18	$ 0	$ 227
Goodwill and Intangible Asset Impairment	$ 0	$ 0
Hardware Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill and Intangible Asset Impairment			146
Hardware [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Impairment Charges			$ 37

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (AOCI) Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), beginning balance	$ (269)	$ (246)	$ (199)
Other comprehensive (loss) income before reclassifications	(3)	(11)	(34)
Amounts reclassified from AOCI	1	(12)	(14)
Net current period other comprehensive (loss) income	(2)	(23)	(48)
Accumulated other comprehensive income (loss), ending balance	(271)	(269)	(246)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification			1
Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), beginning balance	(260)	(234)	(183)
Other comprehensive (loss) income before reclassifications	15	(26)	(51)
Amounts reclassified from AOCI	0	0	0
Net current period other comprehensive (loss) income	15	(26)	(51)
Accumulated other comprehensive income (loss), ending balance	(245)	(260)	(234)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification			0
Changes in Employee Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), beginning balance	(10)	(14)	(15)
Other comprehensive (loss) income before reclassifications	(11)	10	6
Amounts reclassified from AOCI	(5)	(6)	(6)
Net current period other comprehensive (loss) income	(16)	4	0
Accumulated other comprehensive income (loss), ending balance	(26)	(10)	(14)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification			1
Changes in Fair Value of Effective Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss), beginning balance	1	2	(1)
Other comprehensive (loss) income before reclassifications	(7)	5	11
Amounts reclassified from AOCI	6	(6)	(8)
Net current period other comprehensive (loss) income	(1)	(1)	3
Accumulated other comprehensive income (loss), ending balance	$ 0	$ 1	2
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification			$ 0

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) (AOCI) Reclassifications (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses									$ (1,051)	$ (1,051)	$ (1,005)
Research and development expenses									(234)	(259)	(252)
Interest expense									(218)	(197)	(168)
Income (loss) from continuing operations									(6)	614	(34)
Income tax expense (benefit)									(53)	(273)	73
Net income (loss) attributable to NCR common stockholders	$ (209)	$ 25	$ 57	$ 17	$ 343	$ 11	$ 76	$ 24	(110)	454	(137)
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses									(3)	4	(3)
Research and development expenses									0	0	(1)
Income (loss) from continuing operations									0	(17)	(16)
Income tax expense (benefit)									1	5	2
Net income (loss) attributable to NCR common stockholders									1	(12)	(14)
Reclassification out of Accumulated Other Comprehensive Income \| Actuarial losses recognized
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses									(1)	1	0
Research and development expenses									0	0	0
Income (loss) from continuing operations									(3)	(3)	0
Reclassification out of Accumulated Other Comprehensive Income \| Amortization of prior service benefit
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses									(2)	(3)	(3)
Research and development expenses									0	0	(1)
Income (loss) from continuing operations									(4)	(6)	(9)
Reclassification out of Accumulated Other Comprehensive Income \| Effective Cash Flow Hedges
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses									0	0	0
Research and development expenses									0	0	0
Income (loss) from continuing operations									7	(8)	(7)
Product [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products									1,733	2,146	1,988
Product [Member] \| Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products									7	8	7
Product [Member] \| Reclassification out of Accumulated Other Comprehensive Income \| Actuarial losses recognized
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products									0	0	0
Product [Member] \| Reclassification out of Accumulated Other Comprehensive Income \| Amortization of prior service benefit
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products									0	0	0
Product [Member] \| Reclassification out of Accumulated Other Comprehensive Income \| Effective Cash Flow Hedges
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products									7	(8)	7
Service [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products									2,950	2,848	2,742
Service [Member] \| Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products									4	5	5
Service [Member] \| Reclassification out of Accumulated Other Comprehensive Income \| Actuarial losses recognized
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products									2	2	0
Service [Member] \| Reclassification out of Accumulated Other Comprehensive Income \| Amortization of prior service benefit
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products									2	(3)	5
Service [Member] \| Reclassification out of Accumulated Other Comprehensive Income \| Effective Cash Flow Hedges
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of products									$ 0	$ 0	$ 0

Revisions of Previously Issue_3

Revisions of Previously Issued Financial Statements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (Decrease) in Other Operating Assets and Liabilities, Net	$ (15)	$ 8	$ 53
Increase (Decrease) in Client Funds Held	(12)	15	(10)
Net Cash Provided by (Used in) Investing Activities	(277)	(512)	(474)
Net Cash Provided by (Used in) Financing Activities	(514)	(61)	(48)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(157)	31	(11)
Cash, cash equivalents and restricted cash at beginning of period	563	532	543
Cash, Cash Equivalents, Restricted Cash at end of period	$ 406	563	$ 532
Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (Decrease) in Other Operating Assets and Liabilities, Net		2
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		628
Increase (Decrease) in Client Funds Held		(15)
Net Cash Provided by (Used in) Investing Activities		(527)
Net change in funds held for clients - financing		15
Net Cash Provided by (Used in) Financing Activities		(31)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect		40
Cash, cash equivalents and restricted cash at beginning of period		476
Cash, Cash Equivalents, Restricted Cash at end of period		516
Revision of Prior Period, Error Correction, Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (Decrease) in Other Operating Assets and Liabilities, Net		6
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		6
Increase (Decrease) in Client Funds Held		15
Net Cash Provided by (Used in) Investing Activities		15
Net change in funds held for clients - financing		(30)
Net Cash Provided by (Used in) Financing Activities		(30)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect		(9)
Cash, cash equivalents and restricted cash at beginning of period		56
Cash, Cash Equivalents, Restricted Cash at end of period		47
As Revised [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Increase (Decrease) in Other Operating Assets and Liabilities, Net		8
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		634
Increase (Decrease) in Client Funds Held		0
Net Cash Provided by (Used in) Investing Activities		(512)
Net change in funds held for clients - financing		(15)
Net Cash Provided by (Used in) Financing Activities		(61)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect		31
Cash, cash equivalents and restricted cash at beginning of period		532
Cash, Cash Equivalents, Restricted Cash at end of period		$ 563

Revisions of Previously Issue_4

Revisions of Previously Issued Financial Statements - Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and Cash Equivalents	$ 338	$ 509	$ 464
Restricted Cash included in other assets	9	7	12
Funds Held for Clients included in other current assets	44	32	46
Cash included in settlement processing assets included in other current assets	15	15	10
Cash, Cash Equivalents, Restricted Cash at end of period	$ 406	$ 563	$ 532

Supplemental Financial Inform_3

Supplemental Financial Information Supplemental Financial Information - Other (Expense) Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other (Expense) Income [Abstract]
Interest and Other Income	$ 8	$ 5	$ 5
Foreign currency fluctuations and foreign exchange contracts	(14)	(23)	(26)
Employee Benefit Plans Amounts Included in Other Income Expense	(31)	(82)	45
Bank Related Fees Included in Other Income Expense	(5)	(7)	(8)
gain on equity liquidations	0	37	0
Equity Method Investment, Other than Temporary Impairment	(7)	0	0
Business Combination, Bargain Purchase, Gain Recognized, Amount	7	0	0
Other Nonoperating Expense	0	3	0
Other Nonoperating Income (Expense)	$ (42)	$ (73)	$ 16

Supplemental Financial Inform_4

Supplemental Financial Information - Accounts Receivable (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Accounts Receivable, after Allowance for Credit Loss, Current [Abstract]
Accounts receivable	$ 1,168	$ 1,534
Less: allowance for doubtful accounts	(51)	(44)
Total accounts receivable, net	1,117	1,490
Trade [Member]
Accounts Receivable, after Allowance for Credit Loss, Current [Abstract]
Accounts receivable	1,120	1,482
Other [Member]
Accounts Receivable, after Allowance for Credit Loss, Current [Abstract]
Accounts receivable	$ 48	$ 52

Supplemental Financial Inform_5

Supplemental Financial Information - Inventory (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Inventory, Net [Abstract]
Work in process and raw materials	$ 133	$ 204
Finished goods	135	184
Service parts	333	396
Total inventories, net	$ 601	$ 784

Supplemental Financial Inform_6

Supplemental Financial Information Supplemental Financial Information - Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Property, Plant and Equipment, Gross	$ 1,049	$ 1,032
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	55	38
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(676)	(619)
Property, plant and equipment, net	373	413
Land and Land Improvements [Member]
Class of Stock [Line Items]
Property, Plant and Equipment, Gross	2	5
Building and Building Improvements [Member]
Class of Stock [Line Items]
Property, Plant and Equipment, Gross	279	274
Machinery and other equipment [Member]
Class of Stock [Line Items]
Property, Plant and Equipment, Gross	$ 713	$ 715

Quarterly Information (unaudi_3

Quarterly Information (unaudited) Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Effect of Fourth Quarter Events [Line Items]
Income (loss) from operations	$ (63)	$ 118	$ 89	$ 77	$ 182	$ 172	$ 157	$ 100	$ 221	$ 611	$ 191
Net income (loss) attributable to NCR									$ (79)	$ 564	$ (88)
Net income (loss) per common share
Basic (in dollars per share)	$ (1.62)	$ 0.19	$ 0.45	$ 0.13	$ 2.69	$ 0.09	$ 0.63	$ 0.20	$ (0.86)	$ 3.72	$ (1.16)
Diluted (in dollars per share)	$ (1.62)	$ 0.19	$ 0.44	$ 0.13	$ 2.43	$ 0.09	$ 0.58	$ 0.20	$ (0.86)	$ 3.36	$ (1.16)
Defined benefit plans, actuarial gains (losses) [Member]
Effect of Fourth Quarter Events [Line Items]
Net income (loss) attributable to NCR	$ 29				$ 66
Net income (loss) per common share
Basic (in dollars per share)	$ 0.22				$ 0.52
Diluted (in dollars per share)	$ 0.22				$ 0.46
Cost Actions on transformation and strategic initiatives [Domain]
Effect of Fourth Quarter Events [Line Items]
Net income (loss) attributable to NCR	$ 165
Net income (loss) per common share
Basic (in dollars per share)	$ 1.28
Diluted (in dollars per share)	1.28
Loss on environmental matters
Net income (loss) per common share
Basic (in dollars per share)	0.56
Diluted (in dollars per share)	$ 0.56

Quarterly Information (unaudi_4

Quarterly Information (unaudited) Statement of Operations (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 1,631,000,000	$ 1,589,000,000	$ 1,484,000,000	$ 1,503,000,000	$ 1,886,000,000	$ 1,783,000,000	$ 1,710,000,000	$ 1,536,000,000	$ 6,207,000,000	$ 6,915,000,000	$ 6,405,000,000
Gross Profit	328,000,000	427,000,000	372,000,000	397,000,000	532,000,000	507,000,000	471,000,000	411,000,000
Income (loss) from operations	(63,000,000)	118,000,000	89,000,000	77,000,000	182,000,000	172,000,000	157,000,000	100,000,000	221,000,000	611,000,000	191,000,000
Income from continuing operations	(125,000,000)	31,000,000	64,000,000	23,000,000	384,000,000	105,000,000	88,000,000	37,000,000	(7,000,000)	614,000,000	(36,000,000)
Income (loss) from discontinued operations, net of tax	(72,000,000)	0	0	0	(35,000,000)	(15,000,000)	0	0	(72,000,000)	(50,000,000)	(52,000,000)
Net income (loss) attributable to NCR common stockholders	$ (209,000,000)	$ 25,000,000	$ 57,000,000	$ 17,000,000	$ 343,000,000	$ 11,000,000	$ 76,000,000	$ 24,000,000	$ (110,000,000)	$ 454,000,000	$ (137,000,000)
From continuing operations (in dollars per share)	$ (1.06)	$ 0.19	$ 0.45	$ 0.13	$ 2.96	$ 0.21	$ 0.63	$ 0.20	$ (0.30)	$ 4.13	$ (0.72)
From continuing operations (in dollars per share)	(1.06)	0.19	0.44	0.13	2.67	0.21	0.58	0.20	(0.30)	3.71	(0.72)
Net income per common share:
Basic (in dollars per share)	(1.62)	0.19	0.45	0.13	2.69	0.09	0.63	0.20	(0.86)	3.72	(1.16)
Diluted (in dollars per share)	$ (1.62)	$ 0.19	$ 0.44	$ 0.13	$ 2.43	$ 0.09	$ 0.58	$ 0.20	$ (0.86)	$ 3.36	$ (1.16)

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 44	$ 31	$ 37
Charged to Costs & Expenses	33	24	14
Charged to Other Accounts	0	0	0
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	26	11	20
Balance at End of Period	51	44	31
Deferred Tax Asset Valuation Allowance [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	352	485	415
Charged to Costs & Expenses	26	23	100
Charged to Other Accounts	10	0	0
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	47	156	30
Balance at End of Period	$ 341	$ 352	$ 485