UPB of Loans Underlying Our Guarantees by Payment Status (Details) - USD ($) $ in Millions |
Sep. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Guarantor Obligations [Line Items] | ||
| Current | $ 384,055 | $ 397,437 |
| One Month Past Due | 2,254 | 2,518 |
| Two Months Past Due | 1,003 | 969 |
| Three Months or More Past Due, or in Foreclosure | 3,142 | 3,009 |
| Total | 390,454 | 403,933 |
| Single family | ||
| Guarantor Obligations [Line Items] | ||
| Current | 33,351 | 33,454 |
| One Month Past Due | 2,088 | 2,183 |
| Two Months Past Due | 798 | 852 |
| Three Months or More Past Due, or in Foreclosure | 1,367 | 1,490 |
| Total | 37,604 | 37,979 |
| Multifamily | ||
| Guarantor Obligations [Line Items] | ||
| Current | 350,704 | 363,983 |
| One Month Past Due | 166 | 335 |
| Two Months Past Due | 205 | 117 |
| Three Months or More Past Due, or in Foreclosure | 1,775 | 1,519 |
| Total | $ 352,850 | $ 365,954 |