v3.26.3
Derivatives and Hedging Activities (Derivatives in Statement of Condition) (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Derivatives, Fair Value [Line Items]    
Derivatives, Notional Amount $ 60,696 $ 81,563
Derivative Assets 555 512
Netting adjustments and cash collateral [1] (510) (470)
Total Derivative Assets and Derivative Liabilities 45 42
Derivative Liabilities 173 182
Netting Adjustments and Cash Collateral-Derivative Liability [1] (172) (179)
Derivative liabilities, net 1 3
Cash collateral posted, including accrued interest 71 53
Cash collateral received, including accrued interest 408 345
Designated as Hedging Instrument | Interest rate swaps    
Derivatives, Fair Value [Line Items]    
Derivatives, Notional Amount 54,014 69,418
Derivative Assets 531 507
Derivative Liabilities 170 131
Not Designated as Hedging Instrument, Economic Hedge | Interest rate swaps    
Derivatives, Fair Value [Line Items]    
Derivatives, Notional Amount 6,682 12,145
Derivative Assets 24 5
Derivative Liabilities $ 3 $ 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 $71 million and $53 million at September 30, 2026, and December 31, 2025, respectively. Cash collateral received, including accrued interest, was $408 million and $345 million at September 30, 2026, and December 31, 2025, respectively.