v3.26.1
Mortgage Banking Activities, Mortgage Banking Noninterest Income (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Components of Mortgage Banking Noninterest Income [Abstract]    
Contractually specified servicing fees, late charges and ancillary fees $ 308 $ 406
Unreimbursed servicing costs (30) (27)
Net servicing fees 75 141
Total net servicing income 105 205
Net gains (losses) on mortgage loan originations/sales 96 127
Total mortgage banking noninterest income 201 332
Mortgage Banking Activities Textual [Abstract]    
Net derivative gains (losses) from economic hedges related to mortgage loans held for sale and derivative loan commitments 21 (12)
Commercial mortgage servicing [Member]    
Components of Mortgage Banking Noninterest Income [Abstract]    
Amortization for commercial MSRs (41) (49)
Commercial mortgage servicing [Member] | MSRs [Member]    
Estimated future amortization expense [Abstract]    
Estimated future amortization expense for the remainder of 2026 102  
Estimated future amortization expense for the year ended December 31, 2027 116  
Estimated future amortization expense for the year ended December 31, 2028 105  
Estimated future amortization expense for the year ended December 31, 2029 81  
Estimated future amortization expense for the year ended December 31, 2030 66  
Estimated future amortization expense for the year ended December 31, 2031 43  
Residential mortgage servicing rights [Member]    
Components of Mortgage Banking Noninterest Income [Abstract]    
Changes due to collection/realization of expected cash flows (162) (189)
Changes in fair value of MSRs due to valuation inputs or assumptions 56 (68)
Market-related valuation changes to residential MSRs, net of hedge results 30 64
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 (26) 132
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 28 (123)
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 $ 28 $ 55