Goodwill and Other Intangible Assets - Schedule of other intangible assets by asset class (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,657	$ 2,710
Accumulated Amortization and Impairment	2,210	2,218
Net Carrying Amount	447	492
Amortization and impairment of intangible assets	113	147	$ 246
Customer-related and contract-based
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,207	2,289
Accumulated Amortization and Impairment	1,833	1,848
Net Carrying Amount	374	441
Technology and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	436	407
Accumulated Amortization and Impairment	363	357
Net Carrying Amount	73	50
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	14	14
Accumulated Amortization and Impairment	14	13
Net Carrying Amount	$ 0	$ 1