XML 93 R74.htm IDEA: XBRL DOCUMENT
v3.20.2

Securitizations and Financings - Assets and Liabilities of Consolidated VIEs (Details) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2020 USD ($) special_purpose_entity | Dec. 31, 2019 USD ($)
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Number of SPEs | special_purpose_entity | 4 |
Assets - transfers accounted for as secured borrowings | $ 587 | $ 606
Assets - reverse secured borrowings | 4,666 | 5,272
Liabilities - transfers accounted for as secured borrowings | 400 | 360
Liabilities - reverse secured borrowings | 4,700 | 5,277
Purchase discount | 59 | 46
Residential mortgage | Restricted cash |  |
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Assets - transfers accounted for as secured borrowings | 95 | 66
Assets - reverse secured borrowings | 27 | 42
Residential mortgage | Reverse mortgage interests |  |
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Assets - transfers accounted for as secured borrowings | 0 | 0
Assets - reverse secured borrowings | 4,639 | 5,230
Residential mortgage | Advances and other receivables, net |  |
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Assets - transfers accounted for as secured borrowings | 492 | 540
Assets - reverse secured borrowings | 0 | 0
Residential mortgage | Advance facilities |  |
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Liabilities - transfers accounted for as secured borrowings | 399 | 359
Liabilities - reverse secured borrowings | 0 | 0
Residential mortgage | Payables and other liabilities |  |
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Liabilities - transfers accounted for as secured borrowings | 1 | 1
Liabilities - reverse secured borrowings | 1 | 1
Residential mortgage | Participating interest financing |  |
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Liabilities - transfers accounted for as secured borrowings | 0 | 0
Liabilities - reverse secured borrowings | 3,875 | 4,284
Residential mortgage | Trust 2019-2 | HECM Securitizations (HMBS) |  |
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Liabilities - transfers accounted for as secured borrowings | 0 | 0
Liabilities - reverse secured borrowings | 274 | 333
Residential mortgage | Trust 2019-1 | HECM Securitizations (HMBS) |  |
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Liabilities - transfers accounted for as secured borrowings | 0 | 0
Liabilities - reverse secured borrowings | 244 | 302
Residential mortgage | Trust 2018-3 | HECM Securitizations (HMBS) |  |
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Liabilities - transfers accounted for as secured borrowings | 0 | 0
Liabilities - reverse secured borrowings | 179 | 209
Residential mortgage | Trust 2018-2 | HECM Securitizations (HMBS) |  |
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items] |  |
Liabilities - transfers accounted for as secured borrowings | 0 | 0
Liabilities - reverse secured borrowings | $ 127 | $ 148

X
- Definition Number Of Variable Interest Entities + References No definition available. + Details
Name: | nsm_NumberOfVariableInterestEntities
Namespace Prefix: | nsm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Purchase Discount + References No definition available. + Details
Name: | nsm_ReverseMortgageInterestUnpaidPrincipalBalancePurchaseDiscount
Namespace Prefix: | nsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reverse Secured Borrowings, Assets, Carrying Amount + References No definition available. + Details
Name: | nsm_ReverseSecuredBorrowingsAssetsCarryingAmount
Namespace Prefix: | nsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reverse Secured Borrowings, Liabilities, Carrying Amount + References No definition available. + Details
Name: | nsm_ReverseSecuredBorrowingsLiabilitiesCarryingAmount
Namespace Prefix: | nsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_AssetsAndAssociatedLiabilitiesOfTransfersAccountedForAsSecuredBorrowingsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount of financial assets accounted for as secured borrowings recognized in the transferor's statement of financial position at the end of each period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
Name: | us-gaap_TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount of liabilities associated with financial assets accounted for as secured borrowings recognized in the transferor's statement of financial position at the end of each period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
Name: | us-gaap_TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=nsm_RestrictedCashMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=nsm_ReverseMortgagesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_AccountsReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=nsm_NotesPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_AccountsPayableAndAccruedLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=nsm_ParticipatingInterestFinancingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nsm_A201902HECMSecuritizationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=nsm_OtherNonRecourseDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nsm_A201901HECMSecuritizationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nsm_A201803HECMSecuritizationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nsm_A201802HECMSecuritizationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |