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v3.19.3.a.u2

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions | 5 Months Ended | 7 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2018 | Jul. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2017
Mortgage Servicing Rights [Line Items] |  |  |  |
Operating lease, rent expense |  |  | $ 39 |
Rental expense | $ 16 | $ 19 |  | $ 31
Litigation and Regulatory Matters |  |  |  |
Mortgage Servicing Rights [Line Items] |  |  |  |
Legal fees | 22 | $ 40 | 64 | $ 40
Reverse Mortgage Servicing Rights, Excluding Subservicing |  |  |  |
Mortgage Servicing Rights [Line Items] |  |  |  |
Principal amount outstanding on mortgage servicing rights | 28,415 |  | 22,725 |
Reverse mortgage interests |  |  |  |
Mortgage Servicing Rights [Line Items] |  |  |  |
Principal amount outstanding on mortgage servicing rights | 28,415 |  | 22,725 |
Maximum unfunded advance obligation | $ 3,128 |  | 2,617 |
Minimum | Litigation and Regulatory Matters |  |  |  |
Mortgage Servicing Rights [Line Items] |  |  |  |
Reasonably possible loss |  |  | 18 |
Maximum | Litigation and Regulatory Matters |  |  |  |
Mortgage Servicing Rights [Line Items] |  |  |  |
Reasonably possible loss |  |  | $ 37 |

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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918638-209977 + Details
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- Definition This is the sum of principal amount outstanding for both securitized and unsecuritized loans of all types. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118948506&loc=d3e107314-111719 + Details
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