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Reverse Mortgage Interests, Net - Reverse Mortgage Interests, Net (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Jul. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
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Reverse Mortgage Interest [Line Items] |  |  |  |
Participating interests in HECM mortgage-backed securities, net of $58 and $0 premium, respectively | $ 5,664 |  |  |
Other interests securitized, net of $100 and $0 discount, respectively | 1,064 |  |  |
Unsecuritized interests, net of $122 and $89 discount, respectively | 1,219 |  |  |
Reserves | (13) | $ 0 |  |
Total reverse mortgage interests, net | 7,934 |  |  |
Other interests securitized, purchase discount | 100 | 117 |  |
Unsecuritized interests, purchase discount | $ 122 | 173 |  |
Predecessor |  |  |  |
Reverse Mortgage Interest [Line Items] |  |  |  |
Participating interests in HECM mortgage-backed securities, net of $58 and $0 premium, respectively |  |  | $ 7,107 |
Other interests securitized, net of $100 and $0 discount, respectively |  |  | 912 |
Unsecuritized interests, net of $122 and $89 discount, respectively |  |  | 2,080 |
Reserves |  | $ (129) | (115) | $ (131)
Total reverse mortgage interests, net |  |  | 9,984 |
Other interests securitized, purchase discount |  |  | 0 |
Unsecuritized interests, purchase discount |  |  | $ 89 |

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- Definition Reverse funded loan advances + References No definition available. + Details
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- Definition Reverse Funded Loan Advances, Reserves + References No definition available. + Details
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- Definition [Line Items] for Reverse Mortgage Interest [Table] + References No definition available. + Details
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- Definition Reverse Mortgage Interest Subject to Non-Recourse Debt + References No definition available. + Details
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- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Other Interests Securitized + References No definition available. + Details
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- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Other Interests Securitized, Purchase Discount + References No definition available. + Details
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- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Unsecuritized + References No definition available. + Details
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- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Unsecuritized, Purchase Discount + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |