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Mortgage Loans Held for Sale and Investment - Mortgage Loans Held for Sale (Details) - USD ($) $ in Millions | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
UPB | $ 26 | $ 45
Fair Value | 24 | 42
Ginnie Mae Repurchased Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
UPB | 21 | 40
Mortgages loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans held for sale – UPB | 3,268 | 1,568
Mark-to-market adjustment | 154 | 63
Total mortgage loans held for sale | $ 3,422 | $ 1,631

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- Definition Loans Held-for-Sale, Mortgages, Fair Value Adjustment + References No definition available. + Details
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- Definition Loans Held-for-Sale, Mortgages, Unpaid Principal Balance + References No definition available. + Details
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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 Amount, after allowance for bad debt, of loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
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