v3.26.1
Mortgage Banking Activities, Mortgage Banking Noninterest Income (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Components of Mortgage Banking Noninterest Income [Abstract]        
Contractually specified servicing fees, late charges and ancillary fees $ 292 $ 367 $ 600 $ 773
Unreimbursed servicing costs (23) (76) (53) (103)
Net servicing fees 72 59 147 200
Total net servicing income 119 141 224 346
Net gains (losses) on mortgage loan originations/sales 137 89 233 216
Total mortgage banking noninterest income 256 230 457 562
Mortgage Banking Activities Textual [Abstract]        
Net derivative gains (losses) from economic hedges related to mortgage loans held for sale and derivative loan commitments 8 (2) 29 (14)
Commercial mortgage servicing [Member]        
Components of Mortgage Banking Noninterest Income [Abstract]        
Amortization for commercial MSRs (35) (36) (76) (85)
Commercial mortgage servicing [Member] | MSRs [Member]        
Estimated future amortization expense [Abstract]        
Estimated future amortization expense for the remainder of 2026 70   70  
Estimated future amortization expense for the year ended December 31, 2027 120   120  
Estimated future amortization expense for the year ended December 31, 2028 108   108  
Estimated future amortization expense for the year ended December 31, 2029 84   84  
Estimated future amortization expense for the year ended December 31, 2030 68   68  
Estimated future amortization expense for the year ended December 31, 2031 45   45  
Residential mortgage servicing rights [Member]        
Components of Mortgage Banking Noninterest Income [Abstract]        
Changes due to collection/realization of expected cash flows (162) (196) (324) (385)
Changes in fair value of MSRs due to valuation inputs or assumptions 102 88 158 20
Market-related valuation changes to residential MSRs, net of hedge results 47 82 77 146
Residential mortgage servicing rights [Member] | Not designated as hedging instrument [Member]        
Components of Mortgage Banking Noninterest Income [Abstract]        
Net derivative gains (losses) from economic hedges (55) (6) (81) 126
Residential mortgage servicing rights [Member] | Market interest rates [Member]        
Components of Mortgage Banking Noninterest Income [Abstract]        
Changes in fair value of MSRs due to valuation inputs or assumptions 55 (2) 83 (125)
Residential mortgage servicing rights [Member] | Other valuation inputs or assumptions [Member]        
Components of Mortgage Banking Noninterest Income [Abstract]        
Changes in fair value of MSRs due to valuation inputs or assumptions $ 47 $ 90 $ 75 $ 145