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v3.19.1

Indebtedness - Notes Payable Summary (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |
Debt Outstanding | $ 578,000,000 | $ 595,000,000
Servicing Segment | Notes Payable, Other |  |
Debt Instrument [Line Items] |  |
Debt outstanding, gross | 578,000,000 | 595,000,000
Debt Outstanding | 578,000,000 | 595,000,000
Collateral Pledged | 765,000,000 | 777,000,000
Servicing Segment | Notes Payable, Other | Nationstar agency advance receivables trust |  |
Debt Instrument [Line Items] |  |
Capacity Amount | 350,000,000 |
Debt outstanding, gross | 225,000,000 | 218,000,000
Collateral Pledged | $ 262,000,000 | 255,000,000
Servicing Segment | Notes Payable, Other | Nationstar agency advance receivables trust | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.50% |
Servicing Segment | Notes Payable, Other | Nationstar agency advance receivables trust | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.60% |
Servicing Segment | Notes Payable, Other | Nationstar mortgage advance receivable trust |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 325,000,000 |
Debt outstanding, gross | 195,000,000 | 209,000,000
Collateral Pledged | $ 265,000,000 | 284,000,000
Servicing Segment | Notes Payable, Other | Nationstar mortgage advance receivable trust | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.50% |
Servicing Segment | Notes Payable, Other | Nationstar mortgage advance receivable trust | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 6.50% |
Servicing Segment | Notes Payable, Other | MBS servicer advance facility (2014) |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 135,000,000 |
Debt outstanding, gross | 89,000,000 | 90,000,000
Collateral Pledged | $ 160,000,000 | 149,000,000
Servicing Segment | Notes Payable, Other | MBS servicer advance facility (2014) | CPRATE |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.50% |
Servicing Segment | Notes Payable, Other | Nationstar agency advance financing facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 125,000,000 |
Debt outstanding, gross | 69,000,000 | 78,000,000
Collateral Pledged | $ 78,000,000 | 89,000,000
Servicing Segment | Notes Payable, Other | Nationstar agency advance financing facility | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.50% |
Servicing Segment | Notes Payable, Other | Nationstar agency advance financing facility | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 7.40% |
Servicing Segment | Advance facilities |  |
Debt Instrument [Line Items] |  |
Unamortized debt issuance costs | $ 0 | 0
Originations Segment | Mortgage loans, net |  |
Debt Instrument [Line Items] |  |
Debt Outstanding | 2,027,000,000 | 1,528,000,000
Collateral Pledged | 2,177,000,000 | 1,628,000,000
Originations Segment | Reverse mortgage interests |  |
Debt Instrument [Line Items] |  |
Debt Outstanding | 764,000,000 | 722,000,000
Collateral Pledged | 899,000,000 | 838,000,000
Originations Segment | MSR |  |
Debt Instrument [Line Items] |  |
Debt Outstanding | 260,000,000 | 100,000,000
Collateral Pledged | 1,340,000,000 | 1,686,000,000
Originations Segment | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Debt outstanding, gross | 2,791,000,000 | 2,250,000,000
Collateral Pledged | 3,076,000,000 | 2,466,000,000
Originations Segment | Notes Payable to Banks | $1,000 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | 1,000,000,000 |
Debt outstanding, gross | 210,000,000 | 137,000,000
Collateral Pledged | $ 215,000,000 | 140,000,000
Originations Segment | Notes Payable to Banks | $1,000 warehouse facility | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.60% |
Originations Segment | Notes Payable to Banks | $1,000 warehouse facility | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.50% |
Originations Segment | Notes Payable to Banks | $950 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 950,000,000 |
Debt outstanding, gross | 462,000,000 | 560,000,000
Collateral Pledged | $ 525,000,000 | 622,000,000
Originations Segment | Notes Payable to Banks | $950 warehouse facility | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.70% |
Originations Segment | Notes Payable to Banks | $950 warehouse facility | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 3.50% |
Originations Segment | Notes Payable to Banks | $800 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 800,000,000 |
Debt outstanding, gross | 388,000,000 | 464,000,000
Collateral Pledged | $ 491,000,000 | 514,000,000
Originations Segment | Notes Payable to Banks | $800 warehouse facility | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.90% |
Originations Segment | Notes Payable to Banks | $800 warehouse facility | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.90% |
Originations Segment | Notes Payable to Banks | $600 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 600,000,000 |
Debt outstanding, gross | 168,000,000 | 151,000,000
Collateral Pledged | $ 188,000,000 | 168,000,000
Originations Segment | Notes Payable to Banks | $600 warehouse facility | LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.30% |
Originations Segment | Notes Payable to Banks | $500 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 500,000,000 |
Debt outstanding, gross | 427,000,000 | 290,000,000
Collateral Pledged | $ 441,000,000 | 299,000,000
Originations Segment | Notes Payable to Banks | $500 warehouse facility | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.00% |
Originations Segment | Notes Payable to Banks | $500 warehouse facility | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.30% |
Originations Segment | Notes Payable to Banks | $500 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 500,000,000 |
Debt outstanding, gross | 223,000,000 | 220,000,000
Collateral Pledged | $ 250,000,000 | 248,000,000
Originations Segment | Notes Payable to Banks | $500 warehouse facility | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.50% |
Originations Segment | Notes Payable to Banks | $500 warehouse facility | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.80% |
Originations Segment | Notes Payable to Banks | $500 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 500,000,000 |
Debt outstanding, gross | 218,000,000 | 187,000,000
Collateral Pledged | $ 235,000,000 | 200,000,000
Originations Segment | Notes Payable to Banks | $500 warehouse facility | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.50% |
Originations Segment | Notes Payable to Banks | $500 warehouse facility | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 3.00% |
Originations Segment | Notes Payable to Banks | $500 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 500,000,000 |
Debt outstanding, gross | 115,000,000 | 119,000,000
Collateral Pledged | $ 118,000,000 | 122,000,000
Originations Segment | Notes Payable to Banks | $500 warehouse facility | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.80% |
Originations Segment | Notes Payable to Banks | $500 warehouse facility | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.80% |
Originations Segment | Notes Payable to Banks | $250 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 250,000,000 |
Debt outstanding, gross | 245,000,000 | 0
Collateral Pledged | $ 246,000,000 | 0
Originations Segment | Notes Payable to Banks | $250 warehouse facility | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.90% |
Originations Segment | Notes Payable to Banks | $250 warehouse facility | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.50% |
Originations Segment | Notes Payable to Banks | $200 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 200,000,000 |
Debt outstanding, gross | 186,000,000 | 0
Collateral Pledged | $ 187,000,000 | 0
Originations Segment | Notes Payable to Banks | $200 warehouse facility | LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 1.50% |
Originations Segment | Notes Payable to Banks | $200 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 200,000,000 |
Debt outstanding, gross | 75,000,000 | 103,000,000
Collateral Pledged | $ 100,000,000 | 132,000,000
Originations Segment | Notes Payable to Banks | $200 warehouse facility | LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.30% |
Originations Segment | Notes Payable to Banks | $200 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 200,000,000 |
Debt outstanding, gross | 0 | 18,000,000
Collateral Pledged | $ 0 | 19,000,000
Basis spread on rate | 2.30% |
Originations Segment | Notes Payable to Banks | $165 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 165,000,000 |
Debt outstanding, gross | 67,000,000 | 0
Collateral Pledged | $ 68,000,000 | 0
Basis spread on rate | 1.60% |
Originations Segment | Notes Payable to Banks | $50 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 50,000,000 |
Debt outstanding, gross | 6,000,000 | 0
Collateral Pledged | $ 9,000,000 | 0
Basis spread on rate | 1.50% |
Originations Segment | Notes Payable to Banks | $40 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 40,000,000 |
Debt outstanding, gross | 1,000,000 | 1,000,000
Collateral Pledged | $ 3,000,000 | 2,000,000
Originations Segment | Notes Payable to Banks | $40 warehouse facility | LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 3.00% |
Originations Segment | Mortgage servicing rights |  |
Debt Instrument [Line Items] |  |
Debt outstanding, gross | $ 260,000,000 | 100,000,000
Collateral Pledged | 1,340,000,000 | 1,686,000,000
Originations Segment | Mortgage servicing rights | $200 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | 200,000,000 |
Debt outstanding, gross | 50,000,000 | 0
Collateral Pledged | $ 232,000,000 | 430,000,000
Originations Segment | Mortgage servicing rights | $200 warehouse facility | LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 3.80% |
Originations Segment | Mortgage servicing rights | $200 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 200,000,000 |
Debt outstanding, gross | 100,000,000 | 100,000,000
Collateral Pledged | $ 884,000,000 | 928,000,000
Originations Segment | Mortgage servicing rights | $200 warehouse facility | LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 4.00% |
Originations Segment | Mortgage servicing rights | $175 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 175,000,000 |
Debt outstanding, gross | 70,000,000 | 0
Collateral Pledged | $ 129,000,000 | 226,000,000
Originations Segment | Mortgage servicing rights | $175 warehouse facility | LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.30% |
Originations Segment | Mortgage servicing rights | $50 warehouse facility |  |
Debt Instrument [Line Items] |  |
Capacity Amount | $ 50,000,000 |
Debt outstanding, gross | 40,000,000 | 0
Collateral Pledged | $ 95,000,000 | 102,000,000
Originations Segment | Mortgage servicing rights | $50 warehouse facility | LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread on rate | 2.80% |
Originations Segment | Warehouse Facilities |  |
Debt Instrument [Line Items] |  |
Debt outstanding, gross | $ 3,051,000,000 | 2,350,000,000
Debt Outstanding | 3,050,000,000 | 2,349,000,000
Collateral Pledged | 4,416,000,000 | 0
Unamortized debt issuance costs | $ (1,000,000) | $ (1,000,000)

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