v3.26.1
Derivatives and Hedging Activities (Derivatives in Statement of Condition) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Derivatives, Fair Value [Line Items]    
Derivatives, Notional Amount $ 76,138 $ 81,563
Derivative Assets 462 512
Netting adjustments and cash collateral [1] (434) (470)
Total Derivative Assets and Derivative Liabilities 28 42
Derivative Liabilities 160 182
Netting Adjustments and Cash Collateral-Derivative Liability [1] (139) (179)
Derivative liabilities, net 21 3
Cash collateral posted, including accrued interest 43 53
Cash collateral received, including accrued interest 338 345
Designated as Hedging Instrument | Interest rate swaps    
Derivatives, Fair Value [Line Items]    
Derivatives, Notional Amount 64,743 69,418
Derivative Assets 454 507
Derivative Liabilities 126 131
Not Designated as Hedging Instrument, Economic Hedge | Interest rate swaps    
Derivatives, Fair Value [Line Items]    
Derivatives, Notional Amount 11,395 12,145
Derivative Assets 8 5
Derivative Liabilities $ 34 $ 51
[1] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions, and also cash collateral, including accrued interest, held or placed with the same clearing agents or counterparty. Cash collateral posted, including accrued interest, was $43 million and $53 million at March 31, 2026, and December 31, 2025, respectively. Cash collateral received, including accrued interest, was $338 million and $345 million at March 31, 2026, and December 31, 2025, respectively.