Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets by Asset Class (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 8,917	$ 2,244
Accumulated Amortization and Impairment	2,123	2,010
Total	6,794	234
Customer-related and contract-based
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,729	1,873
Accumulated Amortization and Impairment	1,784	1,686
Total	5,945	187
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	812	12
Accumulated Amortization and Impairment	26	12
Intangible assets, net	786	0
Technology and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	376	359
Accumulated Amortization and Impairment	313	312
Total	$ 63	$ 47