Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets by Asset Class (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,224	$ 2,244
Accumulated Amortization and Impairment	2,007	2,010
Total	217	234
Customer-related and contract-based
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,857	1,873
Accumulated Amortization and Impairment	1,683	1,686
Total	174	187
Technology and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	367	371
Accumulated Amortization and Impairment	324	324
Total	$ 43	$ 47