Shareholders' Equity of Xerox Holdings - Treasury Stock (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Increase (Decrease) In Treasury Stock [Roll Forward]
Balance at December 31, 2019 (in shares)	2,031
Balance at December 31, 2019	$ 76
Purchases		$ 103
Cancellations	$ 0	0
Balance at March 31, 2020 (in shares)	0
Balance at March 31, 2020	$ 0
Treasury Stock
Increase (Decrease) In Treasury Stock [Roll Forward]
Balance at December 31, 2019 (in shares)	2,031
Balance at December 31, 2019	$ 76
Purchases (in shares)	0
Purchases	$ 0	103
Cancellations (in shares)	(2,031)
Cancellations	$ (76)	$ 55
Balance at March 31, 2020 (in shares)	0
Balance at March 31, 2020	$ 0