v3.25.4
Investments in Securities - Investments In Trading Securities (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Schedule of Investments in Trading Securities [Line Items]    
Total trading securities $ 69,514 $ 78,728
Amortized cost 400 487
Total available-for-sale securities 375 469
Total investments in securities 69,889 79,197
Mortgage-related securities    
Schedule of Investments in Trading Securities [Line Items]    
Total trading securities 14,291 1,098
Mortgage-related securities | Consolidated Trusts    
Schedule of Investments in Trading Securities [Line Items]    
Total trading securities 522 300
Non-mortgage-related securities    
Schedule of Investments in Trading Securities [Line Items]    
Total trading securities 55,223 77,630
Non-mortgage-related securities | Pledged as collateral    
Schedule of Investments in Trading Securities [Line Items]    
Total trading securities $ 8,200 $ 8,900