Commitment, Contingencies, And Guarantees (Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Financial Instruments Owned and Pledged as Collateral [Line Items]
Interest expense reclassified from OCI	$ 741	$ 672	$ 570
Fair Value Hedging
Financial Instruments Owned and Pledged as Collateral [Line Items]
Gain/(loss) recognized in OCI	(38)	101
Net realized gain/(loss) reclassified from OCI	(103)	50
Interest expense reclassified from OCI	15	16
OCI gain (loss) after reclassifications	$ 80	$ 67

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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