v3.26.1
Derivatives - Derivative Assets and Liabilities at Fair Value (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Derivative [Line Items]    
Notional or contractual amount $ 1,171,577 $ 1,034,422
Derivative interest receivable and other 199 107
Netting adjustments to derivative assets (4,014) (3,981)
Derivative Asset 1,860 1,466
Derivative interest payable and other 0 0
Netting adjustments to derivative liabilities 3,999 3,979
Derivative liabilities, net (873) (781)
Not Designated as Hedging Instrument, Economic Hedge    
Derivative [Line Items]    
Notional or contractual amount 1,046,818 908,514
Derivative assets at fair value 5,540 5,142
Derivative liabilities at fair value (2,482) (2,536)
Not Designated as Hedging Instrument, Economic Hedge | Swaps    
Derivative [Line Items]    
Notional or contractual amount 621,553 557,848
Derivative assets at fair value 1,160 1,148
Derivative liabilities at fair value (230) (306)
Not Designated as Hedging Instrument, Economic Hedge | Written options | Written    
Derivative [Line Items]    
Notional or contractual amount 68,480 40,480
Derivative assets at fair value 0 0
Derivative liabilities at fair value (1,420) (1,459)
Not Designated as Hedging Instrument, Economic Hedge | Purchased options | Purchased    
Derivative [Line Items]    
Notional or contractual amount 120,970 108,030
Derivative assets at fair value 4,291 3,893
Derivative liabilities at fair value 0 0
Not Designated as Hedging Instrument, Economic Hedge | Futures    
Derivative [Line Items]    
Notional or contractual amount 87,338 87,007
Derivative assets at fair value 0 0
Derivative liabilities at fair value 0 0
Not Designated as Hedging Instrument, Economic Hedge | Interest-rate risk management derivatives    
Derivative [Line Items]    
Notional or contractual amount 898,341 793,365
Derivative assets at fair value 5,451 5,041
Derivative liabilities at fair value (1,650) (1,765)
Not Designated as Hedging Instrument, Economic Hedge | Mortgage commitment derivatives    
Derivative [Line Items]    
Notional or contractual amount 82,420 57,170
Derivative assets at fair value 39 28
Derivative liabilities at fair value (23) (15)
Not Designated as Hedging Instrument, Economic Hedge | Credit risk transfer [Member]    
Derivative [Line Items]    
Notional or contractual amount 26,193 26,883
Derivative assets at fair value 0 0
Derivative liabilities at fair value (106) (155)
Not Designated as Hedging Instrument, Economic Hedge | Other    
Derivative [Line Items]    
Notional or contractual amount 39,864 31,096
Derivative assets at fair value 50 73
Derivative liabilities at fair value (703) (601)
Designated as Hedging Instrument | Fair Value Hedging    
Derivative [Line Items]    
Notional or contractual amount 124,759 125,908
Derivative assets at fair value 135 198
Derivative liabilities at fair value (2,390) (2,224)
Designated as Hedging Instrument | Fair Value Hedging | Swaps    
Derivative [Line Items]    
Notional or contractual amount 124,759 125,908
Derivative assets at fair value 135 198
Derivative liabilities at fair value $ (2,390) $ (2,224)