v3.26.3
Derivative Financial Instruments - Derivative Positions Net of Collateral (Detail) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Derivative assets $ 0 $ 42
Derivative values (as carried on balance sheet), Assets $ 0 $ 42
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Other assets Other assets
Cash collateral (held) pledged, Assets $ 0 $ (44)
Net position, Assets 0 (2)
Derivative liabilities (101) (79)
Derivative values (as carried on balance sheet), Liabilities $ (101) $ (79)
Derivative Liability, Statement of Financial Position [Extensible Enumeration] Other liabilities Other liabilities
Cash collateral (held) pledged, Liabilities $ 37 $ 40
Net position, Liabilities $ (64) $ (39)