Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets by Asset Class (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,768	$ 2,710
Accumulated Amortization and Impairment	2,238	2,218
Net Carrying Amount	530	492
Customer-related and contract-based
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,307	2,289
Accumulated Amortization and Impairment	1,866	1,848
Net Carrying Amount	441	441
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	14	14
Accumulated Amortization and Impairment	14	13
Net Carrying Amount	0	1
Technology and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	447	407
Accumulated Amortization and Impairment	358	357
Net Carrying Amount	$ 89	$ 50