Commitments, Contingencies, And Guarantees (Schedule of Net Investment Hedges, Statements of Financial Performance and Financial Position, Location) (Details) - Net Investment Hedging - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Financial Instruments Owned and Pledged as Collateral [Line Items]
Gain/(loss) recognized in OCI	$ (20)	$ 64	$ (8)	$ 64
Interest income reclassified from OCI	3	0	10	0
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	$ (23)	$ 64	$ (18)	$ 64