Supplementary Financial Information - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Supplemental Financial Information [Abstract]
Provision for receivables	$ 13	$ 13	$ 87	$ 27
Provision for inventory	8	7	14	15
Provision for product warranty	1	3	3	7
Depreciation of buildings and equipment	22	26	43	53
Depreciation and obsolescence of equipment on operating leases	46	57	97	116
Amortization of internal use software	10	16	21	33
Amortization of acquired intangible assets	10	11	21	26
Amortization of customer contract costs	21	22	43	46
Cost of additions to land, buildings and equipment	9	10	27	19
Cost of additions to internal use software	10	6	15	12
Common stock dividends - Xerox Holdings	54	57	108	115
Preferred stock dividends - Xerox Holdings	3	3	7	7
Repurchases related to stock-based compensation - Xerox Holdings	$ 3	$ 9	$ 10	$ 10