v3.26.1
Investments in Securities - Maturity Information (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Total Carrying Amount    
Total carrying amount $ 39,169  
One Year or Less 4  
After One Year Through Five Years 28,686  
After Five Years Through Ten Years 9,959  
After Ten Years 520  
Total Fair Value    
Total Fair Value 38,874 $ 375
One Year or Less 4  
After One Year Through Five Years 28,513  
After Five Years Through Ten Years 9,867  
After Ten Years $ 490  
Weighted-average interest rate 3.97%  
Weighted-average interest rate, One Year or Less 5.98%  
Weighted-average interest rate, After One Year Through Five Years 3.92%  
Weighted-average interest rate, After Five Years Through Ten Years 4.03%  
Weighted-average interest rate, After Ten Years 5.20%  
Mortgage-related securities    
Total Carrying Amount    
Total carrying amount $ 639  
One Year or Less 4  
After One Year Through Five Years 7  
After Five Years Through Ten Years 108  
After Ten Years 520  
Total Fair Value    
Total Fair Value 609 375
One Year or Less 4  
After One Year Through Five Years 6  
After Five Years Through Ten Years 109  
After Ten Years 490  
Non-mortgage-related securities    
Total Carrying Amount    
Total carrying amount 38,530  
One Year or Less 0  
After One Year Through Five Years 28,679  
After Five Years Through Ten Years 9,851  
After Ten Years 0  
Total Fair Value    
Total Fair Value 38,265 $ 0
One Year or Less 0  
After One Year Through Five Years 28,507  
After Five Years Through Ten Years 9,758  
After Ten Years $ 0