Goodwill and Other Intangibles (Amortized Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Cost	$ 4,353	$ 4,431
Accumulated Amortization	1,816	1,621
Net Carrying Amount	2,537	2,810
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Cost	3,993	4,066
Accumulated Amortization	1,508	1,334
Net Carrying Amount	2,485	2,732
Other
Finite-Lived Intangible Assets [Line Items]
Gross Cost	360	365
Accumulated Amortization	308	287
Net Carrying Amount	$ 52	$ 78