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, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Servicing Asset at Fair Value, Amount [Roll Forward]        
Fair value, beginning of period $ 463 $ 327 $ 351 $ 210
Servicing assets obtained in acquisition 0 0 0 59
New servicing assets created 20 31 68 103
Time decay (6) (4) (16) (11)
Payoffs (8) (17) (29) (50)
Changes in valuation inputs or assumptions 17 1 112 27
Fair value, end of period $ 486 $ 338 $ 486 $ 338