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Fair Value Measurements - Reconciliation of Level 3 (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Excess spread financing | Recurring Fair Value Measurements |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance - beginning of year | $ 768 | $ 934
Changes in fair value included in earnings | 133 | (10)
Purchases/additions (1) | 0 | 0
Equity consideration received |  | 0
Issuances | 0 | 0
Sales/dispositions (1) | 0 | 0
Repayments | (293) | (4)
Settlements | (99) | (152)
Other changes | 0 | 0
Balance - end of year | 509 | 768
Mortgage servicing rights financing | Recurring Fair Value Measurements |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance - beginning of year | 10 | 33
Changes in fair value included in earnings | 9 | (23)
Purchases/additions (1) | 0 | 0
Equity consideration received |  | 0
Issuances | 0 | 0
Sales/dispositions (1) | 0 | 0
Repayments | 0 | 0
Settlements | 0 | 0
Other changes | 0 | 0
Balance - end of year | 19 | 10
Mortgage servicing rights | Recurring Fair Value Measurements |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance - beginning of year | 4,223 | 2,703
Changes in fair value included in earnings | 549 | (506)
Purchases/additions (1) | 1,595 | 948
Equity consideration received |  | 0
Issuances | 554 | 1,077
Sales/dispositions (1) | (294) | (55)
Repayments | 0 | 0
Settlements | 0 | 0
Other changes | 27 | (56)
Balance - end of year | 6,654 | 4,223
IRLCs | Recurring Fair Value Measurements |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance - beginning of year | 134 | 414
Changes in fair value included in earnings | (112) | (280)
Purchases/additions (1) | 0 | 0
Equity consideration received |  | 0
Issuances | 0 | 0
Sales/dispositions (1) | 0 | 0
Repayments | 0 | 0
Settlements | 0 | 0
Other changes | 0 | 0
Balance - end of year | 22 | 134
LPCs |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Settlements |  | 0
LPCs | Recurring Fair Value Measurements |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance - beginning of year | 3 | 38
Changes in fair value included in earnings |  | (35)
Purchases/additions (1) |  | 0
Equity consideration received |  | 0
Issuances |  | 0
Sales/dispositions (1) |  | 0
Repayments |  | 0
Other changes |  | 0
Balance - end of year |  | 3
Equity investments | Recurring Fair Value Measurements |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance - beginning of year | 54 | 0
Changes in fair value included in earnings | (9) | (1)
Purchases/additions (1) | 0 | 0
Equity consideration received |  | (55)
Issuances | 0 | 0
Sales/dispositions (1) | 0 | 0
Repayments | 0 | 0
Settlements | 0 | 0
Other changes | 0 | 0
Balance - end of year | 45 | 54
Mortgage loans held for sale | Recurring Fair Value Measurements |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance - beginning of year | 76 |
Changes in fair value included in earnings | (3) |
Purchases/additions (1) | 130 |
Issuances | 0 |
Sales/dispositions (1) | (124) |
Repayments | (2) |
Settlements | 0 |
Other changes | (3) |
Balance - end of year | $ 74 | $ 76

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