Commitments, Contingencies, And Guarantees (Schedule of Net Investment Hedges, Statements of Financial Performance and Financial Position, Location) (Details) - Designated as Hedging Instrument - Net Investment Hedging - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Financial Instruments Owned and Pledged as Collateral [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	$ 16	$ 16
Debt Designated as net investment hedge [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	(33)	0
Currency Swap [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Gain (loss) recognized in OCI	58	24
Interest income reclassified from OCI	9	8
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	49	$ 16
Currency Swap Terminated
Financial Instruments Owned and Pledged as Collateral [Line Items]
Gain (loss) recognized in OCI	$ 42