Segment Reporting - Schedule of Assets by Segment (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 4,325,437	$ 4,305,288
Operating Segments | Single-Family
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	3,833,540	3,844,092
Operating Segments | Multifamily
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 491,897	$ 461,196