Debt - Interest (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Interest paid	$ 181,000,000	$ 221,000,000	$ 231,000,000
Interest expense	215,000,000	236,000,000	244,000,000
Interest income	240,000,000	$ 260,000,000	$ 283,000,000
Xerox Holdings Corporation
Debt Instrument [Line Items]
Interest paid	$ 32