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Mortgage Loans Held for Sale - Held For Sale (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans held for sale - UPB | $ 2,187 | $ 924 |
Mark-to-market adjustment(1) | 24 | 3 |
Total mortgage loans held for sale | 2,211 | 927 | $ 893
UPB | 47 | 42 |
Fair Value | 38 | 36 |
Ginnie Mae Repurchased Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
UPB | $ 38 | $ 35 |

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