v3.25.4
Conservatorship, Senior Preferred Stock Purchase Agreement and Related Matters - Narrative (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
1 Months Ended 12 Months Ended
Sep. 08, 2008
Sep. 30, 2008
Dec. 31, 2025
Dec. 31, 2024
Sep. 07, 2008
Related Parties [Line Items]          
Preferred stock, covenant, maximum mortgage assets     $ 225,000    
FHFA debt limit     $ 270,000    
Basis points of each dollar of unpaid principal balance     0.042%    
Affordable Housing Program obligation     35.00%    
Series 2008-2 Senior Preferred Stock          
Related Parties [Line Items]          
Stock issued (in shares)   1      
Preferred stock covenant maximum fair market value of assets and properties per transaction     $ 250    
Aggregate liquidation preference of senior preferred stock     1,000    
Related Party | Treasury          
Related Parties [Line Items]          
Percentage of common shares attributable to warrants   79.90%     79.90%
Common stock warrant exercise price (in dollars per share)         $ 0.00001
Value assigned to Treasury's commitment and recorded as a reduction to additional paid-in-capital   $ 4,500      
Fair value of the warrant at issuance $ 3,500        
Aggregate funding received from US Treasury pursuant to the senior preferred stock purchase agreement     119,800    
Total available funding from treasury pursuant to the senior preferred stock agreement     113,900    
Aggregate liquidation preference of senior preferred stock     227,000    
Related Party | U.S. FinTech & Freddie Mac          
Related Parties [Line Items]          
Contributions for equity investments     $ 82 $ 68  
Treasury          
Related Parties [Line Items]          
TCCA, increase of guarantee fee rate     0.10%