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Mortgage Servicing Rights and Related Liabilities - Revenues for Services Segment (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Transfers and Servicing [Abstract] |  |  |
Contractually specified servicing fees(1) | $ 2,222,000,000 | $ 1,700,000,000 | $ 1,458,000,000
Other service-related income(1) | 77,000,000 | 72,000,000 | 105,000,000
Incentive and modification income(1) | 69,000,000 | 43,000,000 | 29,000,000
Servicing late fees(1) | 128,000,000 | 89,000,000 | 76,000,000
MSR MTM | 650,000,000 | 121,000,000 | 1,328,000,000
Loss on MSR hedging activities | 517,000,000 | 68,000,000 | 332,000,000
(Loss) gain on MSR and excess yield sales | (9,000,000) | 23,000,000 | (3,000,000)
Reclassifications to reserve provision(2) | 25,000,000 | 33,000,000 | 30,000,000
Excess spread / MSR financing MTM | (18,000,000) | (18,000,000) | (142,000,000)
Total mark-to-market adjustments - Servicing | 81,000,000 | 25,000,000 | 821,000,000
MSR amortization | (923,000,000) | (604,000,000) | (779,000,000)
Excess spread accretion | (37,000,000) | (41,000,000) | (86,000,000)
Total amortization, net of accretion | (886,000,000) | (563,000,000) | (693,000,000)
Originations service related fees(3) | 86,000,000 | 61,000,000 | 98,000,000
Corporate/Xome service related fees | 77,000,000 | 84,000,000 | 76,000,000
Other(4) | (66,000,000) | (71,000,000) | (105,000,000)
Total revenues - Service Related, net | 1,788,000,000 | 1,440,000,000 | 1,865,000,000
Cash Flows Between Transferor and Transferee, Servicing Fees | $ 759,000,000 | $ 708,000,000 | $ 661,000,000

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- Definition Corporate/Xome related service fees + References No definition available. + Details
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- Definition Fair value changes in excess spread financing + References No definition available. + Details
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- Definition Gain (Loss) On Advances And Other Receivables Related To Inactive And Liquidated Loans + References No definition available. + Details
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- Definition Originations service fees + References No definition available. + Details
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- Definition Other Service Related Income + References No definition available. + Details
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- Definition Servicing Fee Income, Accretion Expense + References No definition available. + Details
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- Definition Servicing Fee Income, Counter Party Revenue Share + References No definition available. + Details
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- Definition Servicing Fee Income, Incentive and Modification Income + References No definition available. + Details
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- Definition Servicing Fee Income, Mark to Market Adjustment + References No definition available. + Details
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- Definition Total Mark to Market Adjustment - Servicing + References No definition available. + Details
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- Definition Cash Flows between a transferee and a transferor attributable to servicing fees related to a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-3 + Details
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- Definition All amounts that, per contract, are due to the servicer in exchange for servicing the financial asset and would no longer be received by a servicer if the beneficial owners of the serviced assets (or their trustees or agents) were to exercise their actual or potential authority under the contract to shift the servicing to another servicer. Depending on the servicing contract, those fees may include some or all of the difference between the interest rate collected on the asset being serviced and the rate to be paid to the beneficial owners of the asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481229/860-50-50-2 + Details
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- Definition Income from mortgage banking activities (fees and commissions) and servicing real estate mortgages, credit cards, and other financial assets held by others net of any related impairment of capitalized service costs. Also includes any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1402 -Paragraph b -Subparagraph (1) -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1402 -Paragraph b -Subparagraph (1)(Instruction 3) -Publisher SEC + Details
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- Definition Gain (loss) incurred in hedging activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
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- Definition All amounts that are due to the servicer of a financial asset as a result of the debt holder not meeting the monthly payment terms. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481229/860-50-50-2 + Details
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