Shareholders' Equity of Xerox Holdings - Treasury Stock (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Increase (Decrease) In Treasury Stock [Roll Forward]
Beginning balance (in shares)			2,031
Ending balance (in shares)	8,007		8,007
Beginning balance			$ 76
Purchases	$ 150	$ 68	150	$ 368
Cancellations		0	0	0
Ending balance	$ 150		$ 150
Treasury Stock
Increase (Decrease) In Treasury Stock [Roll Forward]
Beginning balance (in shares)			2,031
Purchases (in shares)			8,007
Cancellations (in shares)			(2,031)
Ending balance (in shares)	8,007		8,007
Beginning balance			$ 76
Purchases	$ 150	68	150	368
Cancellations		$ (131)	(76)	$ 355
Ending balance	$ 150		$ 150