Mortgage Loans - Loans Purchased and Sold (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Single-family | Held for Investment | ||
| Financing Receivable, Allowance for Credit Loss [Line Items] | ||
| Purchases | $ 102,513 | $ 77,646 |
| Single-family | Held-for-Sale | ||
| Financing Receivable, Allowance for Credit Loss [Line Items] | ||
| Sales | 0 | 759 |
| Multifamily | Held for Investment | ||
| Financing Receivable, Allowance for Credit Loss [Line Items] | ||
| Purchases | 12,700 | 3,914 |
| Multifamily | Held-for-Sale | ||
| Financing Receivable, Allowance for Credit Loss [Line Items] | ||
| Purchases | 96 | 5,431 |
| Sales | $ 671 | $ 6,604 |
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in financing receivable from purchase. Excludes net investment in lease. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Amount of decrease in financing receivable from sale and reclassification to held-for-sale. Excludes net investment in lease. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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