Borrowed Funds (Remaining Maturity) (Details) $ in Millions	Mar. 31, 2023 USD ($)
Debt Disclosure [Abstract]
Less than 1 year	$ 5,423
1 to 2 years	23,403
2 to 3 years	13,230
3 to 4 years	3,924
4 to 5 years	2,341
Over 5 years	12,512
Total	$ 60,833

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