v3.25.4
Deposits - Additional Information (Detail) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Deposit Liability [Line Items]    
Deposits at fair value $ 76,569 $ 44,855
U.S.    
Deposit Liability [Line Items]    
Time deposits, at or above FDIC insurance limit 35,250  
Non-U.S.    
Deposit Liability [Line Items]    
Time deposits, at or above FDIC insurance limit $ 46,140