v3.26.1
Derivatives - Schedule of Derivatives Associated with Fixed Income Trading Activities (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Customer interest rate contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional $ 4,117 $ 4,301
Assets 6 22
Liabilities 121 104
Offsetting upstream interest rate contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional 4,306 4,446
Assets 86 70
Liabilities 6 22
Forwards and futures purchased    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional 2,445 1,937
Assets 5 7
Liabilities 2 0
Forwards and futures sold    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional 2,430 2,210
Assets 2 0
Liabilities $ 5 $ 8