v3.26.1
MORTGAGE LOAN SALES AND SERVICING RIGHTS - Residential Mortgage Portfolio, MSRs Fair Value Method (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Servicing Asset at Fair Value, Amount [Roll Forward]        
Fair value, beginning of period     $ 593  
Fair value, end of period $ 752   752  
Residential mortgage        
Servicing Asset at Fair Value, Amount [Roll Forward]        
Fair value, beginning of period 735 $ 564 593 $ 573
Servicing assets obtained in acquisition 0 0 140 0
New servicing assets created 40 20 68 40
Time decay (9) (7) (16) (14)
Payoffs (15) (10) (29) (17)
Changes in valuation inputs or assumptions 1 0 (4) (15)
Fair value, end of period 752 567 752 567
Related loans serviced for third parties, unpaid principal balance, end of period $ 43,419 $ 33,925 $ 43,419 $ 33,925