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Fair Value Measurements - Measured on a Recurring Basis (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
ASSETS |  |
Mortgage loans held for sale | $ 927 | $ 893
LIABILITIES |  |
Mortgage servicing rights financing | 29 | 19
Recurring Fair Value Measurements |  |
ASSETS |  |
Mortgage loans held for sale | 927 | 893
MSRs at fair value | 9,090 | 6,654
Equity investments | 9 | 47
LIABILITIES |  |
Mortgage servicing rights financing | 29 | 19
Excess spread financing | 437 | 509
Recurring Fair Value Measurements | Level 1 |  |
ASSETS |  |
Mortgage loans held for sale | 0 | 0
MSRs at fair value | 0 | 0
Equity investments | 1 | 2
LIABILITIES |  |
Mortgage servicing rights financing | 0 | 0
Excess spread financing | 0 | 0
Recurring Fair Value Measurements | Level 2 |  |
ASSETS |  |
Mortgage loans held for sale | 846 | 819
MSRs at fair value | 0 | 0
Equity investments | 0 | 0
LIABILITIES |  |
Mortgage servicing rights financing | 0 | 0
Excess spread financing | 0 | 0
Recurring Fair Value Measurements | Level 3 |  |
ASSETS |  |
Mortgage loans held for sale | 81 | 74
MSRs at fair value | 9,090 | 6,654
Equity investments | 8 | 45
LIABILITIES |  |
Mortgage servicing rights financing | 29 | 19
Excess spread financing | 437 | 509
IRLCs | Recurring Fair Value Measurements |  |
ASSETS |  |
Fair Value | 21 | 22
IRLCs | Recurring Fair Value Measurements | Level 1 |  |
ASSETS |  |
Fair Value | 0 | 0
IRLCs | Recurring Fair Value Measurements | Level 2 |  |
ASSETS |  |
Fair Value | 0 | 0
IRLCs | Recurring Fair Value Measurements | Level 3 |  |
ASSETS |  |
Fair Value | 21 | 22
Forward MBS trades | Recurring Fair Value Measurements |  |
ASSETS |  |
Fair Value | 22 | 8
Fair Value | 9 | 9
Forward MBS trades | Recurring Fair Value Measurements | Level 1 |  |
ASSETS |  |
Fair Value | 0 | 0
Fair Value | 0 | 0
Forward MBS trades | Recurring Fair Value Measurements | Level 2 |  |
ASSETS |  |
Fair Value | 22 | 8
Fair Value | 9 | 9
Forward MBS trades | Recurring Fair Value Measurements | Level 3 |  |
ASSETS |  |
Fair Value | 0 | 0
Fair Value | 0 | 0
Treasury futures |  |
ASSETS |  |
Fair Value |  | 14
Treasury futures | Recurring Fair Value Measurements |  |
ASSETS |  |
Fair Value | 113 |
Fair Value |  | 14
Treasury futures | Recurring Fair Value Measurements | Level 1 |  |
ASSETS |  |
Fair Value | 0 |
Fair Value |  | 0
Treasury futures | Recurring Fair Value Measurements | Level 2 |  |
ASSETS |  |
Fair Value | 113 |
Fair Value |  | 14
Treasury futures | Recurring Fair Value Measurements | Level 3 |  |
ASSETS |  |
Fair Value | 0 |
Fair Value |  | 0
LPCs | Recurring Fair Value Measurements |  |
ASSETS |  |
Fair Value | 3 | 1
Fair Value |  | 1
LPCs | Recurring Fair Value Measurements | Level 1 |  |
ASSETS |  |
Fair Value | 0 | 0
Fair Value |  | 0
LPCs | Recurring Fair Value Measurements | Level 2 |  |
ASSETS |  |
Fair Value | 0 | 0
Fair Value |  | 0
LPCs | Recurring Fair Value Measurements | Level 3 |  |
ASSETS |  |
Fair Value | $ 3 | 1
Fair Value |  | $ 1

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