v3.25.4
Derivative and Hedging Activities - Schedule of Net Gain (Loss) Recognized on Designated Instruments (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]      
Total derivative (loss) gain $ 1 $ (31) $ (47)
Futures | Net return on mortgage servicing rights      
Derivative Instruments, Gain (Loss) [Line Items]      
Total derivative (loss) gain 0 2 1
Interest rate swaps and swaptions | Net return on mortgage servicing rights      
Derivative Instruments, Gain (Loss) [Line Items]      
Total derivative (loss) gain 0 (38) (34)
Mortgage-backed securities forwards | Net return on mortgage servicing rights      
Derivative Instruments, Gain (Loss) [Line Items]      
Total derivative (loss) gain 0 (18) (15)
Rate lock and Forward commitments | Net gain on loan sales and securitizations      
Derivative Instruments, Gain (Loss) [Line Items]      
Total derivative (loss) gain (3) 23 2
Interest rate swaps | Fee income      
Derivative Instruments, Gain (Loss) [Line Items]      
Total derivative (loss) gain 4 0 0
Interest rate swaps | Other noninterest income      
Derivative Instruments, Gain (Loss) [Line Items]      
Total derivative (loss) gain $ 0 $ 0 $ (1)