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Transactions with Affiliates - Narrative (Details) - USD ($) $ in Millions | 1 Months Ended | 2 Months Ended | 3 Months Ended | 7 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 31, 2018 | Sep. 30, 2018 | Sep. 30, 2019 | Jul. 31, 2018 | Sep. 30, 2019
Related Party Transaction [Line Items] |  |  |  |  |
Service related, net |  | $ 259 | $ 258 |  | $ 479
Nationstar Mortgage Holdings Inc. |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Service related, net | $ 120 |  |  | $ 901 |
Nationstar Mortgage Holdings Inc. | New Residential |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Fees paid | 17 |  |  | 122 |
Revenue recognized from servicing agreements | 1 |  |  | 3 |
Nationstar Mortgage Holdings Inc. | Agency MSRs | Subsidiary of New Residential | Loan Subservicing Agreement |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Service related, net | $ 6 |  |  | $ 43 |

X
- Definition Contractually Specified Servicing Fees, Late Fees, and Ancillary Fees Earned in Exchange for Servicing Financial Assets, Revenue Recognized + References No definition available. + Details
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- Definition Payments for Servicing Fees + References No definition available. + 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 No definition available. + Details
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