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Commitments, Contingencies, And Guarantees (Schedule of Net Investment Hedges, Statements of Financial Performance and Financial Position, Location) (Details) - Net Investment Hedging - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Gain/(loss) recognized in OCI $ (58) $ (53)
Interest Income, Other $ 13 $ 4