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Advances and Other Receivables - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
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Receivables [Abstract] |  |  |
Servicing advances, net of $6 and $13 purchase discount, respectively | $ 1,410 | $ 1,065 |
Receivables from agencies, investors and prior servicers, net of zero and $6 purchase discount, respectively | 47 | 101 |
Reserves | (112) | (170) |
Total advances and other receivables, net | 1,345 | 996 |
Servicing advances discount | 6 | 13 | $ 12
Receivable discount | $ 0 | $ 6 | $ 7

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