v3.26.1
Accumulated Other Comprehensive Income - Schedule of Reclassifications Out of AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest income — Loans $ 1,463 $ 1,443 $ 2,879 $ 2,844
Interest expense — Long-term debt (155) (198) (306) (391)
Investment banking and debt placement fees 169 178 366 353
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES 647 539 1,305 1,054
Income taxes 139 116 275 225
INCOME (LOSS) FROM CONTINUING OPERATIONS 508 423 1,030 829
Other expense (158) (170) (337) (355)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains (losses) on derivative financial instruments        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest income — Loans (28) (90) (64) (183)
Interest expense — Long-term debt 0 (1) (1) (2)
Investment banking and debt placement fees 1 0 1 0
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES (27) (91) (64) (185)
Income taxes (7) (22) (15) (45)
INCOME (LOSS) FROM CONTINUING OPERATIONS (20) (69) (49) (140)
Reclassification out of Accumulated Other Comprehensive Income | Net pension and postretirement benefit costs        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES (2) (2) (4) (2)
Income taxes 0 0 (1) (1)
INCOME (LOSS) FROM CONTINUING OPERATIONS (2) (2) (3) (1)
Reclassification out of Accumulated Other Comprehensive Income | Amortization of losses        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other expense (3) (2) (5) (3)
Reclassification out of Accumulated Other Comprehensive Income | Amortization of unrecognized prior service credit        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other expense $ 1 $ 0 $ 1 $ 1