Borrowed Funds (Borrowed Funds) (Details) $ in Millions	Dec. 31, 2023 USD ($)
Debt Disclosure [Abstract]
Due in 2024	$ 24,516
Due in 2025	16,995
Due in 2026	8,719
Due in 2027	4,214
Due in 2028	3,079
Due in 2029 and thereafter	15,214
Total	$ 72,737

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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