Adoption of New Leasing Standard - Xerox as a Lessor Xerox as a Lessor (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Leases [Abstract]
Economic life of leased product	5 years
Lease income - sales type	$ 134	$ 160
Interest income on lease receivables	63	71
Lease income - operating leases	134	141
Variable lease income	27	30
Total Lease income	$ 358	$ 402