Income and Other Taxes - Deferred Tax Asset and Liability (Details) - USD ($) $ in Millions	12 Months Ended			36 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 1986
Deferred Tax Assets And Liabilities [Line Items]
Research and development	$ 143	$ 252		$ 143
Post-retirement medical benefits	98	99		98
Net operating losses	389	389		389
Operating reserves, accruals and deferrals	95	138		95
Tax credit carryforwards	239	254		239
Deferred and share-based compensation	26	32		26
Pension	298	266		298
Depreciation	9	90		9
Operating lease liabilities	347			347
Other	62	46		62
Subtotal	1,706	1,566		1,706
Valuation allowance	(399)	(397)		(399)
Total	1,307	1,169		1,307
Finance lease and installment sales	243	291		243
Intangibles and goodwill	128	129		128
Unremitted earnings of foreign subsidiaries	39	59		39
Operating lease ROU assets	319			319
Other	17	1		17
Total	746	480		746
Total Deferred Taxes, Net	561	689		561
Deferred tax assets	598	740		598
Valuation allowance, increase (decrease) in amount	2	(38)	$ 19
Tax credit carryforwards	239			239
Carryforwards with no expiration
Deferred Tax Assets And Liabilities [Line Items]
Tax credit carryforwards	1			1
Deferred tax assets, operating loss carryforwards, not subject to expiration	1,700			1,700
Carryforwards that expire
Deferred Tax Assets And Liabilities [Line Items]
Tax credit carryforwards	238			238
Operating loss carryforwards	522			522
Other long-term liabilities
Deferred Tax Assets And Liabilities [Line Items]
Deferred tax liabilities	(37)	(51)		(37)
Accounting Standards Update 2018-05
Deferred Tax Assets And Liabilities [Line Items]
Tax cuts and jobs act, incomplete accounting, provisional income tax expense (benefit)	$ (35)	89	$ 400	454
Statutory income tax rate, inclusive of state taxes	25.00%
Undistributed Earnings of Foreign Subsidiaries		1,500			$ 350
Accounting Standards Update 2018-05 | Deemed repatriation tax
Deferred Tax Assets And Liabilities [Line Items]
Tax cuts and jobs act, incomplete accounting, provisional income tax expense (benefit)	$ 164
Accounting Standards Update 2018-05 | Other tax liabilities and adjustments
Deferred Tax Assets And Liabilities [Line Items]
Tax cuts and jobs act, incomplete accounting, provisional income tax expense (benefit)	99
Accounting Standards Update 2018-05 | Deferred tax asset
Deferred Tax Assets And Liabilities [Line Items]
Tax cuts and jobs act, incomplete accounting, provisional income tax expense (benefit)	191
Xerox Corporation
Deferred Tax Assets And Liabilities [Line Items]
Deferred tax assets	$ 598	$ 740		$ 598