v3.25.2
Accumulated Other Comprehensive Income - Reclassification Out of AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Securities gains, net $ 16 $ 3 $ 7 $ 13
Interest on securities 458 458 910 913
Interest and fees on loans and leases 1,881 1,871 3,696 3,731
Income (loss) before income taxes (FTE)(a) 808 764 1,461 1,424
Applicable income tax expense (180) (163) (319) (302)
Net Income 628 601 1,142 1,122
Reclassification out of AOCI        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Net Income (60) (97) (127) (193)
Reclassification out of AOCI | Available-for-sale debt securities        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Securities gains, net 0 (4) 0 (7)
Income (loss) before income taxes (FTE)(a) 0 (4) 0 (7)
Applicable income tax expense 0 1 0 2
Net Income 0 (3) 0 (5)
Reclassification out of AOCI | Available-for-sale debt securities transferred to held-to-maturity securities        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Interest on securities (28) (32) (60) (64)
Income (loss) before income taxes (FTE)(a) (28) (32) (60) (64)
Applicable income tax expense 6 7 13 14
Net Income (22) (25) (47) (50)
Reclassification out of AOCI | Cash flow hedge derivatives        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Interest and fees on loans and leases (50) (90) (105) (179)
Income (loss) before income taxes (FTE)(a) (50) (90) (105) (179)
Applicable income tax expense 12 21 25 41
Net Income $ (38) $ (69) $ (80) $ (138)