Guarantor Financial Statement Information - Consolidating Statements of Cash Flow (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 |
Operating Activities | | | | |
Net income (loss) attributable to Nationstar | $ 58 | $ (20) | $ 218 | $ (18) |
Adjustments to reconcile net income (loss) to net cash attributable to operating activities: | | | | |
Net income (loss) attributable to non-controlling interests | 0 | 1 | 0 | 1 |
(Gain) loss from subsidiaries | | | 0 | 0 |
Net gain on mortgage loans held for sale | (127) | (167) | (251) | (311) |
Reverse mortgage loan interest income | | | (237) | (233) |
Gain on sale of assets | | | (9) | (8) |
Provision for servicing reserves | | | 54 | 59 |
Fair value changes and amortization/accretion of mortgage servicing rights/liabilities | | | (155) | 233 |
Fair value changes in excess spread financing | | | 74 | 15 |
Fair value changes in mortgage servicing rights financing liability | | | 6 | (14) |
Amortization of premiums, net of discount accretion | | | 6 | 27 |
Depreciation and amortization for property and equipment and intangible assets | 14 | 15 | 29 | 29 |
Share-based compensation | | | 8 | 9 |
Other (gain) loss | | | 2 | 9 |
Repurchases of forward loan assets out of Ginnie Mae securitizations | | | (475) | (599) |
Mortgage loans originated and purchased for sale, net of fees | | | (10,639) | (8,896) |
Sales proceeds and loan payment proceeds for mortgage loans held for sale and held for investment | | | 11,500 | 10,006 |
Excess tax deficiency from share-based compensation | | | (1) | (1) |
Changes in assets and liabilities: | | | | |
Advances and other receivables | | | 355 | 118 |
Reverse mortgage interests | | | 1,326 | 769 |
Other assets | | | 10 | 24 |
Payables and accrued liabilities | | | 48 | (348) |
Net cash attributable to operating activities | | | 1,869 | 871 |
Investing Activities | | | | |
Property and equipment additions, net of disposals | | | (31) | (25) |
Purchase of forward mortgage servicing rights, net of liabilities incurred | | | (123) | (13) |
Proceeds on sale of forward and reverse mortgage servicing rights | | | 0 | (2) |
Net payment related to acquisition of HECM related receivables | | | (1) | 0 |
Proceeds on sale of assets | | | 13 | 16 |
Net cash attributable to investing activities | | | (142) | (24) |
Financing Activities | | | | |
(Decrease) increase in warehouse facilities | | | (199) | 100 |
Decrease in advance facilities | | | (339) | (214) |
Proceeds from issuance of HECM securitizations | | | 443 | 308 |
Repayment of HECM securitizations | | | (423) | (176) |
Proceeds from issuance of participating interest financing in reverse mortgage interests, net | | | 184 | 355 |
Repayment of participating interest financing in reverse mortgage interests | | | (1,368) | (1,260) |
Issuance of excess spread financing | | | 70 | 0 |
Repayment of excess spread financing | | | (93) | (109) |
Repayment of nonrecourse debt – legacy assets | | | (6) | (9) |
Repurchase of unsecured senior notes | | | (62) | (95) |
Surrender of shares relating to stock vesting | | | (6) | (5) |
Debt financing costs | | | (7) | (6) |
Dividends to non-controlling interests | | | (1) | (5) |
Net cash attributable to financing activities | | | (1,807) | (1,116) |
Net decrease in cash, cash equivalents, and restricted cash | | | (80) | (269) |
Cash, cash equivalents, and restricted cash - beginning of period | | | 575 | 877 |
Cash, cash equivalents, and restricted cash - end of period | 495 | 608 | 495 | 608 |
Eliminations | | | | |
Operating Activities | | | | |
Net income (loss) attributable to Nationstar | (76) | 6 | (268) | (11) |
Adjustments to reconcile net income (loss) to net cash attributable to operating activities: | | | | |
Net income (loss) attributable to non-controlling interests | 0 | 0 | 0 | 0 |
(Gain) loss from subsidiaries | | | 268 | 11 |
Net gain on mortgage loans held for sale | 0 | 0 | 0 | 0 |
Reverse mortgage loan interest income | | | 0 | 0 |
Gain on sale of assets | | | 0 | 0 |
Provision for servicing reserves | | | 0 | 0 |
Fair value changes and amortization/accretion of mortgage servicing rights/liabilities | | | 0 | 0 |
Fair value changes in excess spread financing | | | 0 | 0 |
Fair value changes in mortgage servicing rights financing liability | | | 0 | 0 |
Amortization of premiums, net of discount accretion | | | 0 | 0 |
Depreciation and amortization for property and equipment and intangible assets | | | 0 | 0 |
Share-based compensation | | | 0 | 0 |
Other (gain) loss | | | 0 | 0 |
Repurchases of forward loan assets out of Ginnie Mae securitizations | | | 0 | 0 |
Mortgage loans originated and purchased for sale, net of fees | | | 0 | 0 |
Sales proceeds and loan payment proceeds for mortgage loans held for sale and held for investment | | | 0 | 0 |
Excess tax deficiency from share-based compensation | | | 0 | 0 |
Changes in assets and liabilities: | | | | |
Advances and other receivables | | | 0 | 0 |
Reverse mortgage interests | | | 0 | 0 |
Other assets | | | 0 | 0 |
Payables and accrued liabilities | | | 0 | 0 |
Net cash attributable to operating activities | | | 0 | 0 |
Investing Activities | | | | |
Property and equipment additions, net of disposals | | | 0 | 0 |
Purchase of forward mortgage servicing rights, net of liabilities incurred | | | 0 | 0 |
Proceeds on sale of forward and reverse mortgage servicing rights | | | | 0 |
Net payment related to acquisition of HECM related receivables | | | 0 | |
Proceeds on sale of assets | | | 0 | 0 |
Net cash attributable to investing activities | | | 0 | 0 |
Financing Activities | | | | |
(Decrease) increase in warehouse facilities | | | 0 | 0 |
Decrease in advance facilities | | | 0 | 0 |
Proceeds from issuance of HECM securitizations | | | 0 | 0 |
Repayment of HECM securitizations | | | 0 | 0 |
Proceeds from issuance of participating interest financing in reverse mortgage interests, net | | | 0 | 0 |
Repayment of participating interest financing in reverse mortgage interests | | | 0 | 0 |
Issuance of excess spread financing | | | 0 | |
Repayment of excess spread financing | | | 0 | 0 |
Repayment of nonrecourse debt – legacy assets | | | 0 | 0 |
Repurchase of unsecured senior notes | | | 0 | 0 |
Surrender of shares relating to stock vesting | | | 0 | 0 |
Debt financing costs | | | 0 | 0 |
Dividends to non-controlling interests | | | 0 | 0 |
Net cash attributable to financing activities | | | 0 | 0 |
Net decrease in cash, cash equivalents, and restricted cash | | | 0 | 0 |
Cash, cash equivalents, and restricted cash - beginning of period | | | 0 | 0 |
Cash, cash equivalents, and restricted cash - end of period | 0 | 0 | 0 | 0 |
Nationstar | Reportable entities | | | | |
Operating Activities | | | | |
Net income (loss) attributable to Nationstar | 58 | (20) | 218 | (18) |
Adjustments to reconcile net income (loss) to net cash attributable to operating activities: | | | | |
Net income (loss) attributable to non-controlling interests | 0 | 0 | 0 | 0 |
(Gain) loss from subsidiaries | | | (218) | 18 |
Net gain on mortgage loans held for sale | 0 | 0 | 0 | 0 |
Reverse mortgage loan interest income | | | 0 | 0 |
Gain on sale of assets | | | 0 | 0 |
Provision for servicing reserves | | | 0 | 0 |
Fair value changes and amortization/accretion of mortgage servicing rights/liabilities | | | 0 | 0 |
Fair value changes in excess spread financing | | | 0 | 0 |
Fair value changes in mortgage servicing rights financing liability | | | 0 | 0 |
Amortization of premiums, net of discount accretion | | | 0 | 0 |
Depreciation and amortization for property and equipment and intangible assets | | | 0 | 0 |
Share-based compensation | | | 0 | 0 |
Other (gain) loss | | | 0 | 0 |
Repurchases of forward loan assets out of Ginnie Mae securitizations | | | 0 | 0 |
Mortgage loans originated and purchased for sale, net of fees | | | 0 | 0 |
Sales proceeds and loan payment proceeds for mortgage loans held for sale and held for investment | | | 0 | 0 |
Excess tax deficiency from share-based compensation | | | 0 | 0 |
Changes in assets and liabilities: | | | | |
Advances and other receivables | | | 0 | 0 |
Reverse mortgage interests | | | 0 | 0 |
Other assets | | | 6 | 5 |
Payables and accrued liabilities | | | 0 | 0 |
Net cash attributable to operating activities | | | 6 | 5 |
Investing Activities | | | | |
Property and equipment additions, net of disposals | | | 0 | 0 |
Purchase of forward mortgage servicing rights, net of liabilities incurred | | | 0 | 0 |
Proceeds on sale of forward and reverse mortgage servicing rights | | | | 0 |
Net payment related to acquisition of HECM related receivables | | | 0 | |
Proceeds on sale of assets | | | 0 | 0 |
Net cash attributable to investing activities | | | 0 | 0 |
Financing Activities | | | | |
(Decrease) increase in warehouse facilities | | | 0 | 0 |
Decrease in advance facilities | | | 0 | 0 |
Proceeds from issuance of HECM securitizations | | | 0 | 0 |
Repayment of HECM securitizations | | | 0 | 0 |
Proceeds from issuance of participating interest financing in reverse mortgage interests, net | | | 0 | 0 |
Repayment of participating interest financing in reverse mortgage interests | | | 0 | 0 |
Issuance of excess spread financing | | | 0 | |
Repayment of excess spread financing | | | 0 | 0 |
Repayment of nonrecourse debt – legacy assets | | | 0 | 0 |
Repurchase of unsecured senior notes | | | 0 | 0 |
Surrender of shares relating to stock vesting | | | (6) | (5) |
Debt financing costs | | | 0 | 0 |
Dividends to non-controlling interests | | | 0 | 0 |
Net cash attributable to financing activities | | | (6) | (5) |
Net decrease in cash, cash equivalents, and restricted cash | | | 0 | 0 |
Cash, cash equivalents, and restricted cash - beginning of period | | | 0 | 0 |
Cash, cash equivalents, and restricted cash - end of period | 0 | 0 | 0 | 0 |
Issuer | Reportable entities | | | | |
Operating Activities | | | | |
Net income (loss) attributable to Nationstar | 58 | (20) | 218 | (18) |
Adjustments to reconcile net income (loss) to net cash attributable to operating activities: | | | | |
Net income (loss) attributable to non-controlling interests | 0 | 1 | 0 | 1 |
(Gain) loss from subsidiaries | | | (50) | (29) |
Net gain on mortgage loans held for sale | (127) | (167) | (251) | (310) |
Reverse mortgage loan interest income | | | (237) | (233) |
Gain on sale of assets | | | 0 | 0 |
Provision for servicing reserves | | | 54 | 59 |
Fair value changes and amortization/accretion of mortgage servicing rights/liabilities | | | (155) | 233 |
Fair value changes in excess spread financing | | | 73 | 16 |
Fair value changes in mortgage servicing rights financing liability | | | 6 | (14) |
Amortization of premiums, net of discount accretion | | | 9 | (4,271) |
Depreciation and amortization for property and equipment and intangible assets | | | 23 | 21 |
Share-based compensation | | | 7 | 6 |
Other (gain) loss | | | 3 | 9 |
Repurchases of forward loan assets out of Ginnie Mae securitizations | | | (475) | (599) |
Mortgage loans originated and purchased for sale, net of fees | | | (10,639) | (8,896) |
Sales proceeds and loan payment proceeds for mortgage loans held for sale and held for investment | | | 11,490 | 14,290 |
Excess tax deficiency from share-based compensation | | | (1) | (1) |
Changes in assets and liabilities: | | | | |
Advances and other receivables | | | 355 | 118 |
Reverse mortgage interests | | | 1,314 | 926 |
Other assets | | | (188) | (164) |
Payables and accrued liabilities | | | 52 | (337) |
Net cash attributable to operating activities | | | 1,608 | 807 |
Investing Activities | | | | |
Property and equipment additions, net of disposals | | | (27) | (23) |
Purchase of forward mortgage servicing rights, net of liabilities incurred | | | (117) | (6) |
Proceeds on sale of forward and reverse mortgage servicing rights | | | | (2) |
Net payment related to acquisition of HECM related receivables | | | (1) | |
Proceeds on sale of assets | | | 0 | 16 |
Net cash attributable to investing activities | | | (145) | (15) |
Financing Activities | | | | |
(Decrease) increase in warehouse facilities | | | (199) | 100 |
Decrease in advance facilities | | | (57) | (76) |
Proceeds from issuance of HECM securitizations | | | 0 | 0 |
Repayment of HECM securitizations | | | 0 | (1) |
Proceeds from issuance of participating interest financing in reverse mortgage interests, net | | | 184 | 355 |
Repayment of participating interest financing in reverse mortgage interests | | | (1,368) | (1,260) |
Issuance of excess spread financing | | | 70 | |
Repayment of excess spread financing | | | (93) | (109) |
Repayment of nonrecourse debt – legacy assets | | | 0 | 0 |
Repurchase of unsecured senior notes | | | (62) | (95) |
Surrender of shares relating to stock vesting | | | 0 | 0 |
Debt financing costs | | | (7) | (6) |
Dividends to non-controlling interests | | | (1) | (5) |
Net cash attributable to financing activities | | | (1,533) | (1,097) |
Net decrease in cash, cash equivalents, and restricted cash | | | (70) | (305) |
Cash, cash equivalents, and restricted cash - beginning of period | | | 423 | 612 |
Cash, cash equivalents, and restricted cash - end of period | 353 | 307 | 353 | 307 |
Guarantor (Subsidiaries of Issuer) | Reportable entities | | | | |
Operating Activities | | | | |
Net income (loss) attributable to Nationstar | 6 | 3 | 10 | 5 |
Adjustments to reconcile net income (loss) to net cash attributable to operating activities: | | | | |
Net income (loss) attributable to non-controlling interests | 0 | 0 | 0 | 0 |
(Gain) loss from subsidiaries | | | 0 | 0 |
Net gain on mortgage loans held for sale | 0 | 0 | 0 | 0 |
Reverse mortgage loan interest income | | | 0 | 0 |
Gain on sale of assets | | | 0 | 0 |
Provision for servicing reserves | | | 0 | 0 |
Fair value changes and amortization/accretion of mortgage servicing rights/liabilities | | | 0 | 0 |
Fair value changes in excess spread financing | | | 0 | 0 |
Fair value changes in mortgage servicing rights financing liability | | | 0 | 0 |
Amortization of premiums, net of discount accretion | | | 0 | 0 |
Depreciation and amortization for property and equipment and intangible assets | | | 0 | 0 |
Share-based compensation | | | 0 | 0 |
Other (gain) loss | | | 0 | 0 |
Repurchases of forward loan assets out of Ginnie Mae securitizations | | | 0 | 0 |
Mortgage loans originated and purchased for sale, net of fees | | | 0 | 0 |
Sales proceeds and loan payment proceeds for mortgage loans held for sale and held for investment | | | 0 | 0 |
Excess tax deficiency from share-based compensation | | | 0 | 0 |
Changes in assets and liabilities: | | | | |
Advances and other receivables | | | 0 | 0 |
Reverse mortgage interests | | | 0 | 0 |
Other assets | | | (10) | (6) |
Payables and accrued liabilities | | | 0 | 0 |
Net cash attributable to operating activities | | | 0 | (1) |
Investing Activities | | | | |
Property and equipment additions, net of disposals | | | 0 | 0 |
Purchase of forward mortgage servicing rights, net of liabilities incurred | | | 0 | 0 |
Proceeds on sale of forward and reverse mortgage servicing rights | | | | 0 |
Net payment related to acquisition of HECM related receivables | | | 0 | |
Proceeds on sale of assets | | | 0 | 0 |
Net cash attributable to investing activities | | | 0 | 0 |
Financing Activities | | | | |
(Decrease) increase in warehouse facilities | | | 0 | 0 |
Decrease in advance facilities | | | 0 | 0 |
Proceeds from issuance of HECM securitizations | | | 0 | 0 |
Repayment of HECM securitizations | | | 0 | 0 |
Proceeds from issuance of participating interest financing in reverse mortgage interests, net | | | 0 | 0 |
Repayment of participating interest financing in reverse mortgage interests | | | 0 | 0 |
Issuance of excess spread financing | | | 0 | |
Repayment of excess spread financing | | | 0 | 0 |
Repayment of nonrecourse debt – legacy assets | | | 0 | 0 |
Repurchase of unsecured senior notes | | | 0 | 0 |
Surrender of shares relating to stock vesting | | | 0 | 0 |
Debt financing costs | | | 0 | 0 |
Dividends to non-controlling interests | | | 0 | 0 |
Net cash attributable to financing activities | | | 0 | 0 |
Net decrease in cash, cash equivalents, and restricted cash | | | 0 | (1) |
Cash, cash equivalents, and restricted cash - beginning of period | | | 1 | 2 |
Cash, cash equivalents, and restricted cash - end of period | 1 | 1 | 1 | 1 |
Non-Guarantor (Subsidiaries of Issuer) | Reportable entities | | | | |
Operating Activities | | | | |
Net income (loss) attributable to Nationstar | 12 | 11 | 40 | 24 |
Adjustments to reconcile net income (loss) to net cash attributable to operating activities: | | | | |
Net income (loss) attributable to non-controlling interests | 0 | 0 | 0 | 0 |
(Gain) loss from subsidiaries | | | 0 | 0 |
Net gain on mortgage loans held for sale | 0 | 0 | 0 | (1) |
Reverse mortgage loan interest income | | | 0 | 0 |
Gain on sale of assets | | | (9) | (8) |
Provision for servicing reserves | | | 0 | 0 |
Fair value changes and amortization/accretion of mortgage servicing rights/liabilities | | | 0 | 0 |
Fair value changes in excess spread financing | | | 1 | (1) |
Fair value changes in mortgage servicing rights financing liability | | | 0 | 0 |
Amortization of premiums, net of discount accretion | | | (3) | 4,298 |
Depreciation and amortization for property and equipment and intangible assets | | | 6 | 8 |
Share-based compensation | | | 1 | 3 |
Other (gain) loss | | | (1) | 0 |
Repurchases of forward loan assets out of Ginnie Mae securitizations | | | 0 | 0 |
Mortgage loans originated and purchased for sale, net of fees | | | 0 | 0 |
Sales proceeds and loan payment proceeds for mortgage loans held for sale and held for investment | | | 10 | (4,284) |
Excess tax deficiency from share-based compensation | | | 0 | 0 |
Changes in assets and liabilities: | | | | |
Advances and other receivables | | | 0 | 0 |
Reverse mortgage interests | | | 12 | (157) |
Other assets | | | 202 | 189 |
Payables and accrued liabilities | | | (4) | (11) |
Net cash attributable to operating activities | | | 255 | 60 |
Investing Activities | | | | |
Property and equipment additions, net of disposals | | | (4) | (2) |
Purchase of forward mortgage servicing rights, net of liabilities incurred | | | (6) | (7) |
Proceeds on sale of forward and reverse mortgage servicing rights | | | | 0 |
Net payment related to acquisition of HECM related receivables | | | 0 | |
Proceeds on sale of assets | | | 13 | 0 |
Net cash attributable to investing activities | | | 3 | (9) |
Financing Activities | | | | |
(Decrease) increase in warehouse facilities | | | 0 | 0 |
Decrease in advance facilities | | | (282) | (138) |
Proceeds from issuance of HECM securitizations | | | 443 | 308 |
Repayment of HECM securitizations | | | (423) | (175) |
Proceeds from issuance of participating interest financing in reverse mortgage interests, net | | | 0 | 0 |
Repayment of participating interest financing in reverse mortgage interests | | | 0 | 0 |
Issuance of excess spread financing | | | 0 | |
Repayment of excess spread financing | | | 0 | 0 |
Repayment of nonrecourse debt – legacy assets | | | (6) | (9) |
Repurchase of unsecured senior notes | | | 0 | 0 |
Surrender of shares relating to stock vesting | | | 0 | 0 |
Debt financing costs | | | 0 | 0 |
Dividends to non-controlling interests | | | 0 | 0 |
Net cash attributable to financing activities | | | (268) | (14) |
Net decrease in cash, cash equivalents, and restricted cash | | | (10) | 37 |
Cash, cash equivalents, and restricted cash - beginning of period | | | 151 | 263 |
Cash, cash equivalents, and restricted cash - end of period | $ 141 | $ 300 | $ 141 | $ 300 |