Quarterly report pursuant to Section 13 or 15(d)

MORTGAGE LOAN SALES AND SERVICING RIGHTS - Residential Mortgage Portfolio, MSRs Fair Value Method (Details)

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MORTGAGE LOAN SALES AND SERVICING RIGHTS - Residential Mortgage Portfolio, MSRs Fair Value Method (Details) - Residential mortgage - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Servicing Asset at Fair Value, Amount [Roll Forward]        
Fair value, beginning of period $ 505 $ 463 $ 494 $ 351
New servicing assets created 17 20 48 68
Time decay (6) (6) (18) (16)
Payoffs (7) (8) (18) (29)
Changes in valuation inputs or assumptions 38 17 41 112
Fair value, end of period $ 547 $ 486 $ 547 $ 486