Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Total Revenues	$ 1,747	$ 1,793	$ 3,415	$ 3,503
Equipment
Disaggregation of Revenue [Line Items]
Total Revenues	366	429	680	810
Supplies, paper and other sales
Disaggregation of Revenue [Line Items]
Total Revenues	301	241	579	462
Maintenance agreements
Disaggregation of Revenue [Line Items]
Total Revenues	446	448	875	883
Service arrangements
Disaggregation of Revenue [Line Items]
Total Revenues	478	508	964	997
Rental and other
Disaggregation of Revenue [Line Items]
Total Revenues	104	111	212	240
Financing
Disaggregation of Revenue [Line Items]
Total Revenues	52	56	105	111
Sales
Disaggregation of Revenue [Line Items]
Total Revenues	667	670	1,259	1,272
Sales | Direct equipment lease
Disaggregation of Revenue [Line Items]
Total Revenues	144	189	279	336
Sales | Distributors & resellers
Disaggregation of Revenue [Line Items]
Total Revenues	298	289	559	543
Sales | Customer direct
Disaggregation of Revenue [Line Items]
Total Revenues	225	192	421	393
United States
Disaggregation of Revenue [Line Items]
Total Revenues	992	1,015	1,932	1,989
Europe
Disaggregation of Revenue [Line Items]
Total Revenues	467	514	933	1,013
Canada
Disaggregation of Revenue [Line Items]
Total Revenues	135	104	250	197
Other
Disaggregation of Revenue [Line Items]
Total Revenues	$ 153	$ 160	$ 300	$ 304