v3.26.3
Derivatives - Derivative Assets and Liabilities at Fair Value (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Derivative [Line Items]    
Notional or contractual amount $ 1,189,736 $ 1,034,422
Derivative interest receivable and other 126 107
Netting adjustments to derivative assets (5,340) (3,981)
Derivative Asset 2,737 1,466
Derivative interest payable and other (42) 0
Netting adjustments to derivative liabilities 6,013 3,979
Derivative liabilities, net (1,839) (781)
Not Designated as Hedging Instrument, Economic Hedge    
Derivative [Line Items]    
Notional or contractual amount 1,054,946 908,514
Derivative assets at fair value 7,903 5,142
Derivative liabilities at fair value (4,167) (2,536)
Not Designated as Hedging Instrument, Economic Hedge | Swaps    
Derivative [Line Items]    
Notional or contractual amount 630,418 557,848
Derivative assets at fair value 1,599 1,148
Derivative liabilities at fair value (303) (306)
Not Designated as Hedging Instrument, Economic Hedge | Written options | Written    
Derivative [Line Items]    
Notional or contractual amount 67,180 40,480
Derivative assets at fair value 0 0
Derivative liabilities at fair value (2,027) (1,459)
Not Designated as Hedging Instrument, Economic Hedge | Purchased options | Purchased    
Derivative [Line Items]    
Notional or contractual amount 146,565 108,030
Derivative assets at fair value 6,163 3,893
Derivative liabilities at fair value 0 0
Not Designated as Hedging Instrument, Economic Hedge | Futures    
Derivative [Line Items]    
Notional or contractual amount 56,035 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 900,198 793,365
Derivative assets at fair value 7,762 5,041
Derivative liabilities at fair value (2,330) (1,765)
Not Designated as Hedging Instrument, Economic Hedge | Mortgage commitment derivatives    
Derivative [Line Items]    
Notional or contractual amount 83,363 57,170
Derivative assets at fair value 105 28
Derivative liabilities at fair value (256) (15)
Not Designated as Hedging Instrument, Economic Hedge | Credit risk transfer [Member]    
Derivative [Line Items]    
Notional or contractual amount 25,274 26,883
Derivative assets at fair value 0 0
Derivative liabilities at fair value (97) (155)
Not Designated as Hedging Instrument, Economic Hedge | Other    
Derivative [Line Items]    
Notional or contractual amount 46,111 31,096
Derivative assets at fair value 36 73
Derivative liabilities at fair value (1,484) (601)
Designated as Hedging Instrument | Fair Value Hedging    
Derivative [Line Items]    
Notional or contractual amount 134,790 125,908
Derivative assets at fair value 48 198
Derivative liabilities at fair value (3,643) (2,224)
Designated as Hedging Instrument | Fair Value Hedging | Swaps    
Derivative [Line Items]    
Notional or contractual amount 134,790 125,908
Derivative assets at fair value 48 198
Derivative liabilities at fair value $ (3,643) $ (2,224)