Segment Reporting - Schedule of Assets by Segment (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 4,305,288	$ 4,229,166
Operating Segments | Single-Family
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	3,844,092	3,782,447
Operating Segments | Multifamily
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 461,196	$ 446,719