Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets by Asset Class (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 9,128	$ 2,244
Accumulated Amortization and Impairment	2,339	2,010
Total	6,789	234
Customer-related and contract-based
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,931	1,873
Accumulated Amortization and Impairment	1,967	1,686
Total	5,964	187
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	813	12
Accumulated Amortization and Impairment	46	12
Total	767	0
Technology and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	384	359
Accumulated Amortization and Impairment	326	312
Total	$ 58	$ 47