Earnings per Share - Computation of Basic and Diluted Earnings (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Basic Earnings per Share
Net Income from Continuing Operations Attributable to Xerox Holdings	$ 90	$ 157	$ 115	$ 382
Accrued dividends on preferred stock	(4)	(4)	(11)	(11)
Adjusted Net income from continuing operations available to common shareholders	86	153	104	371
Income from discontinued operations attributable to Xerox Holdings, net of tax	0	64	0	153
Adjusted Net income available to common shareholders	$ 86	$ 217	$ 104	$ 524
Weighted average common shares outstanding (in shares)	211,169	220,269	212,163	224,257
Basic earnings per share, continuing operations (USD per share)	$ 0.41	$ 0.70	$ 0.49	$ 1.66
Basic earnings per share, discontinued operations (USD per share)	0	0.29	0	0.68
Basic earnings per share (USD per share)	$ 0.41	$ 0.99	$ 0.49	$ 2.34
Diluted Earnings per Share
Net Income from Continuing Operations Attributable to Xerox Holdings	$ 90	$ 157	$ 115	$ 382
Accrued dividends on preferred stock	(4)	0	(11)	0
Adjusted Net income from continuing operations available to common shareholders	86	157	104	382
Income from discontinued operations attributable to Xerox Holdings, net of tax	0	64	0	153
Adjusted Net income available to common shareholders	$ 86	$ 221	$ 104	$ 535
Weighted average common shares outstanding (in shares)	211,169	220,269	212,163	224,257
Common shares issuable with respect to:
Adjusted Weighted average common shares outstanding (in shares)	212,707	231,067	214,783	235,465
Diluted earnings per share, continuing operations (USD per share)	$ 0.41	$ 0.68	$ 0.49	$ 1.62
Diluted earnings per share, discontinued operations (USD per share)	0	0.28	0	0.65
Diluted earnings per share (USD per share)	$ 0.41	$ 0.96	$ 0.49	$ 2.27
Stock options
Common shares issuable with respect to:
Common shares attributable to dilutive effect of share-based payments (in shares)	0	42	20	37
Restricted stock and performance shares
Common shares issuable with respect to:
Common shares attributable to dilutive effect of share-based payments (in shares)	1,538	4,014	2,600	4,429
Convertible preferred stock
Common shares issuable with respect to:
Common shares attributable to dilutive effect of share-based payments (in shares)	0	6,742	0	6,742