v3.26.1
Derivative Instruments (Fair Value Hedge Cumulative) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Interest Rate Contract    
Derivative Instruments, Gain (Loss) [Line Items]    
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) $ 22 $ (5)
Fair Value Hedge Liabilities (1,740) (1,463)
Other Contract    
Derivative Instruments, Gain (Loss) [Line Items]    
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) 10 (1)
Fair Value Hedge Liabilities $ (568) $ (547)