v3.25.2
FANNIE MAE COMMITMENTS AND PLEDGED SECURITIES - Commitments (Detail) - DUS Risk-Sharing Obligations
$ in Millions
6 Months Ended
Jun. 30, 2025
USD ($)
Fannie Mae, Freddie Mac, HUD and Ginnie Mae  
LITIGATION, COMMITMENTS, AND CONTINGENCIES  
Minimum liquid assets to be maintained to meet operational liquidity requirements $ 67.2
Operational liquidity $ 220.2
Fannie Mae  
LITIGATION, COMMITMENTS, AND CONTINGENCIES  
Period of funding for collateral requirement 48 months
Amount of additional capital required to be funded over the next 48 months $ 75.9
Net worth requirement 337.4
Net worth $ 1,000.0
Fannie Mae | New Tier 2 loans  
LITIGATION, COMMITMENTS, AND CONTINGENCIES  
Collateral requirements percentage 0.75%
Period of funding for collateral requirement 48 months
Fannie Mae | New Tier 2 loans | Money Market Funds  
LITIGATION, COMMITMENTS, AND CONTINGENCIES  
Restricted liquidity collateral reduction percentage 5.00%
Fannie Mae | New Tier 2 loans | Agency MBS  
LITIGATION, COMMITMENTS, AND CONTINGENCIES  
Restricted liquidity collateral reduction percentage 4.00%