v3.26.1
Derivatives and Hedging Activities (Fair Value of Derivative Instruments) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Derivative [Line Items]    
Derivative, Notional Amount $ 94,686 $ 109,828
Derivative Assets 157 104
Derivative Liabilities 187 303
Netting adjustments and cash collateral [1],[2] 230 230
Net adjustment and cash collateral [1],[2] (185) [3] (299)
Derivative assets 387 334
Derivative liabilities 2 4
Cash collateral posted 482 541
Cash collateral received 67 12
Designated as Hedging Instrument [Member] | Interest-rate swaps [Member]    
Derivative [Line Items]    
Derivative, Notional Amount 94,674 109,775
Derivative Assets 157 104
Derivative Liabilities 187 303
Not Designated as Hedging Instrument [Member] | Interest-rate swaps [Member]    
Derivative [Line Items]    
Derivative, Notional Amount 12 53
Derivative Assets 0 0
Derivative Liabilities $ 0 $ 0
[1] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions, and also cash collateral and related accrued interest held or placed with the same clearing agents and/or counterparty. Cash collateral posted, including accrued interest, was $482 and $541 as of June 30, 2026 and December 31, 2025, respectively. Cash collateral received, including accrued interest, was $67 and $12 as of June 30, 2026 and December 31, 2025, respectively.
[2] Amounts represent the application of the netting requirements that allow the Bank to settle positive and negative positions, and also cash collateral and related accrued interest held or placed with the same clearing agents and/or counterparty
[3] Financial instruments measured at fair value on a recurring basis.