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Mortgage Loans Held for Sale - Held For Sale (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans held for sale - UPB | $ 4,257 | $ 5,438 |
Mark-to-market adjustment(1) | 124 | 282 |
Total mortgage loans held for sale | 4,381 | 5,720 | $ 4,077
UPB | 104 | 64 |
Fair Value | 94 | 54 |
Ginnie Mae Repurchased Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
UPB | $ 94 | $ 44 |

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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 Amount, before valuation allowance, of financing receivable classified as held-for-sale. + 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=124259787&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124265262&loc=d3e48678-111004 + Details
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