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Advances and Other Receivables, Net - Narrative (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Feb. 01, 2019 | Dec. 31, 2018 | Aug. 01, 2018 | Jul. 31, 2018
--- | --- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Receivable discount | $ 21 |  | $ 48 |  | $ 56
Pacific Union Financial, LLC |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Receivable discount |  | $ 19 |  |  |
WMIH Corp And Wand Merger Corporation |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Receivable discount | 152 |  |  | $ 302 |
Purchase discount utilized | $ 169 |  |  |  |

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- 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
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- Definition Disclosure of the unamortized amount of the discount on the note or receivable which is deducted from the face amount of the receivable or loan. The discount or premium is the difference between the present value and the face amount. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399 + Details
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