Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total Revenues	$ 7,038	$ 7,022	$ 9,066
Equipment
Disaggregation of Revenue [Line Items]
Total Revenues	1,581	1,564	2,062
Supplies, paper and other sales
Disaggregation of Revenue [Line Items]
Total Revenues	1,001	885	1,165
Maintenance agreements
Disaggregation of Revenue [Line Items]
Total Revenues	1,787	1,803	2,372
Service arrangements
Disaggregation of Revenue [Line Items]
Total Revenues	1,991	2,014	2,517
Rental and other
Disaggregation of Revenue [Line Items]
Total Revenues	457	530	706
Financing
Disaggregation of Revenue [Line Items]
Total Revenues	221	226	244
Sales
Disaggregation of Revenue [Line Items]
Total Revenues	2,582	2,449	3,227
Sales | Sales channels, direct equipment lease
Disaggregation of Revenue [Line Items]
Total Revenues	664	573	672
Sales | Sales channels, distributors and resellers
Disaggregation of Revenue [Line Items]
Total Revenues	1,130	910	1,343
Sales | Customer direct
Disaggregation of Revenue [Line Items]
Total Revenues	788	966	1,212
United States
Disaggregation of Revenue [Line Items]
Total Revenues	3,982	4,186	5,429
Europe
Disaggregation of Revenue [Line Items]
Total Revenues	2,023	1,883	2,326
Canada
Disaggregation of Revenue [Line Items]
Total Revenues	398	393	518
Other
Disaggregation of Revenue [Line Items]
Total Revenues	$ 635	$ 560	$ 793