Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets by Asset Class (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 9,526	$ 9,172
Accumulated Amortization and Impairment	2,661	2,429
Total	6,865	6,743
Customer-related and contract-based
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,327	7,994
Accumulated Amortization and Impairment	2,251	2,050
Total	6,076	5,944
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	820	812
Accumulated Amortization and Impairment	86	66
Total	734	746
Technology and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	379	366
Accumulated Amortization and Impairment	324	313
Total	$ 55	$ 53