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Advances and Other Receivables - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
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Receivables [Abstract] |  |
Servicing advances, net of $5 and $6 purchase discount, respectively | $ 1,202 | $ 1,410
Receivables from agencies, investors and prior servicers | 38 | 47
Reserves | (116) | (112)
Total advances and other receivables, net | $ 1,124 | $ 1,345

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