Earnings per Share - Reconciliation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Basic Earnings (Loss) per Share:
Net Income from Continuing Operations Attributable to Xerox	$ 89	$ 176	$ 224	$ 388
Net income (loss) from discontinued operations attributable to Xerox	$ 0	$ 3	$ 0	$ (3)
Continuing operations (dollars per share)	$ 0.34	$ 0.68	$ 0.84	$ 1.49
Discontinued operations (dollars per share)	0.00	0.01	0.00	(0.01)
Total Basic Earnings per Share	$ 0.34	$ 0.69	$ 0.84	$ 1.48
Diluted Earnings (Loss) per Share:
Net Income from Continuing Operations Attributable to Xerox	$ 89	$ 176	$ 224	$ 388
Net income (loss) from discontinued operations attributable to Xerox	$ 0	$ 3	$ 0	$ (3)
Common shares issuable with respect to:
Continuing operations (dollars per share)	$ 0.34	$ 0.67	$ 0.83	$ 1.47
Discontinued operations (dollars per share)	0.00	0.01	0.00	(0.01)
Total Diluted Earnings per Share	$ 0.34	$ 0.68	$ 0.83	$ 1.46
Earnings (loss) per share, basic [Member]
Basic Earnings (Loss) per Share:
Net Income from Continuing Operations Attributable to Xerox	$ 89	$ 176	$ 224	$ 388
Accrued dividends on preferred stock	(4)	(4)	(11)	(11)
Adjusted Net income from continuing operations available to common shareholders	85	172	213	377
Net income (loss) from discontinued operations attributable to Xerox	0	3	0	(3)
Adjusted Net income available to common shareholders	$ 85	$ 175	$ 213	$ 374
Weighted average common shares outstanding (in shares)	251,290	254,510	253,360	254,259
Continuing operations (dollars per share)	$ 0.34	$ 0.68	$ 0.84	$ 1.49
Discontinued operations (dollars per share)	0.00	0.01	0.00	(0.01)
Total Basic Earnings per Share	$ 0.34	$ 0.69	$ 0.84	$ 1.48
Diluted Earnings (Loss) per Share:
Net Income from Continuing Operations Attributable to Xerox	$ 89	$ 176	$ 224	$ 388
Accrued dividends on preferred stock	(4)	(4)	(11)	(11)
Net income (loss) from discontinued operations attributable to Xerox	$ 0	$ 3	$ 0	$ (3)
Weighted average common shares outstanding (in shares)	251,290	254,510	253,360	254,259
Earnings (loss) per share, diluted [Member]
Basic Earnings (Loss) per Share:
Net Income from Continuing Operations Attributable to Xerox	$ 89	$ 176	$ 224	$ 388
Accrued dividends on preferred stock	(4)	0	(11)	(11)
Net income (loss) from discontinued operations attributable to Xerox	$ 0	$ 3	$ 0	$ (3)
Weighted average common shares outstanding (in shares)	251,290	254,510	253,360	254,259
Diluted Earnings (Loss) per Share:
Net Income from Continuing Operations Attributable to Xerox	$ 89	$ 176	$ 224	$ 388
Accrued dividends on preferred stock	(4)	0	(11)	(11)
Adjusted Net income from continuing operations available to common shareholders	85	176	213	377
Net income (loss) from discontinued operations attributable to Xerox	0	3	0	(3)
Adjusted Net income available to common shareholders	$ 85	$ 179	$ 213	$ 374
Weighted average common shares outstanding (in shares)	251,290	254,510	253,360	254,259
Common shares issuable with respect to:
Adjusted Weighted Average Common Shares Outstanding - Diluted (in shares)	254,053	263,385	256,235	256,429
Continuing operations (dollars per share)	$ 0.34	$ 0.67	$ 0.83	$ 1.47
Discontinued operations (dollars per share)	0.00	0.01	0.00	(0.01)
Total Diluted Earnings per Share	$ 0.34	$ 0.68	$ 0.83	$ 1.46
Earnings (loss) per share, diluted [Member] | Stock options [Member]
Common shares issuable with respect to:
Common shares attributable to dilutive effect of share-based payments(in shares)	0	0	0	0
Earnings (loss) per share, diluted [Member] | Restricted Stock and Performance Shares [Member]
Common shares issuable with respect to:
Common shares attributable to dilutive effect of share-based payments(in shares)	2,763	2,133	2,875	2,170
Earnings (loss) per share, diluted [Member] | Convertible Preferred Stock [Member]
Common shares issuable with respect to:
Convertible preferred stock	0	6,742	0	0