v3.25.1
Investments Securities - Gain (Loss) on Securities (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Gain (Loss) on Securities [Line Items]    
Noninterest Income $ 1,392 $ 1,446
Securities gains (losses)    
Gain (Loss) on Securities [Line Items]    
Gross realized losses (3) 0
Debt Securities, Available-for-Sale, Realized Gain 2 0
Noninterest Income $ (1) $ 0