Segment Reporting - Schedule of Assets by Segment (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 4,349,731	$ 4,325,437
Operating Segments | Single-Family
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	3,823,840	3,833,540
Operating Segments | Multifamily
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 525,891	$ 491,897