v3.26.3
Fair Values of Financial Instruments - Schedule of Fair Value of Assets and Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Assets    
Trading securities $ 9,459,131 $ 7,387,187
Equity Investments 105,049 103,707
Available-for-sale securities 12,799,752 12,345,845
Derivative assets 1,342,151 1,731,523
Total netting adjustments and cash collateral (1,289,839) (1,631,975)
Liabilities    
Consolidated obligation, Discount notes 0 (577,958)
Consolidated obligation, Bonds (124,260) (556,866)
Derivative liabilities (1,404,238) (1,760,052)
Derivative liabilities, netting adjustment and cash collateral 1,400,039 1,755,955
Housing and U.S. obligations    
Assets    
Available-for-sale securities 2,207,960 2,224,795
Fair Value, Recurring    
Assets    
Equity Investments 105,049 103,707
Total netting adjustments and cash collateral (1,289,839) (1,631,975)
Total recurring fair value measurement - Assets 22,416,244 19,936,287
Liabilities    
Consolidated obligation, Discount notes 0 (577,958)
Consolidated obligation, Bonds (124,260) (556,866)
Derivative liabilities, netting adjustment and cash collateral 1,400,039 1,755,955
Total recurring fair value measurement - Liabilities (128,459) (1,138,921)
Fair Value, Recurring | Interest-rate derivatives    
Assets    
Derivative assets 52,294 99,467
Total netting adjustments and cash collateral (1,289,839) (1,631,975)
Liabilities    
Derivative liabilities (2,147) (4,089)
Derivative liabilities, netting adjustment and cash collateral 1,400,039 1,755,955
Fair Value, Recurring | Mortgage delivery commitments    
Assets    
Derivative assets 18 81
Liabilities    
Derivative liabilities (2,052) (8)
Fair Value, Recurring | Level 1    
Assets    
Equity Investments 105,049 103,707
Total recurring fair value measurement - Assets 10,104,982 8,051,166
Liabilities    
Consolidated obligation, Discount notes 0 0
Consolidated obligation, Bonds 0 0
Total recurring fair value measurement - Liabilities 0 0
Fair Value, Recurring | Level 1 | Interest-rate derivatives    
Assets    
Derivative assets 0 0
Liabilities    
Derivative liabilities 0 0
Fair Value, Recurring | Level 1 | Mortgage delivery commitments    
Assets    
Derivative assets 0 0
Liabilities    
Derivative liabilities 0 0
Fair Value, Recurring | Level 2    
Assets    
Equity Investments 0 0
Total recurring fair value measurement - Assets 11,933,943 11,852,573
Liabilities    
Consolidated obligation, Discount notes 0 (577,958)
Consolidated obligation, Bonds (124,260) (556,866)
Total recurring fair value measurement - Liabilities (1,528,498) (2,894,876)
Fair Value, Recurring | Level 2 | Interest-rate derivatives    
Assets    
Derivative assets 1,342,133 1,731,442
Liabilities    
Derivative liabilities (1,402,186) (1,760,044)
Fair Value, Recurring | Level 2 | Mortgage delivery commitments    
Assets    
Derivative assets 18 81
Liabilities    
Derivative liabilities (2,052) (8)
Fair Value, Recurring | Level 3    
Assets    
Equity Investments 0 0
Total recurring fair value measurement - Assets 1,667,158 1,664,523
Liabilities    
Consolidated obligation, Discount notes 0 0
Consolidated obligation, Bonds 0 0
Total recurring fair value measurement - Liabilities 0 0
Fair Value, Recurring | Level 3 | Interest-rate derivatives    
Assets    
Derivative assets 0 0
Liabilities    
Derivative liabilities 0 0
Fair Value, Recurring | Level 3 | Mortgage delivery commitments    
Assets    
Derivative assets 0 0
Liabilities    
Derivative liabilities 0 0
Fair Value, Recurring | U.S. Treasury securities    
Assets    
Trading securities 9,459,131 7,387,187
Fair Value, Recurring | U.S. Treasury securities | Level 1    
Assets    
Trading securities 9,459,131 7,387,187
Fair Value, Recurring | U.S. Treasury securities | Level 2    
Assets    
Trading securities 0 0
Fair Value, Recurring | U.S. Treasury securities | Level 3    
Assets    
Trading securities 0 0
Fair Value, Recurring | GSE/U.S. agency issued MBS    
Assets    
Available-for-sale securities 10,591,792 10,121,050
Fair Value, Recurring | GSE/U.S. agency issued MBS | Level 1    
Assets    
Available-for-sale securities 0 0
Fair Value, Recurring | GSE/U.S. agency issued MBS | Level 2    
Assets    
Available-for-sale securities 10,591,792 10,121,050
Fair Value, Recurring | GSE/U.S. agency issued MBS | Level 3    
Assets    
Available-for-sale securities 0 0
Fair Value, Recurring | Housing and U.S. obligations    
Assets    
Available-for-sale securities 2,207,960 2,224,795
Fair Value, Recurring | Housing and U.S. obligations | Level 1    
Assets    
Available-for-sale securities 540,802 560,272
Fair Value, Recurring | Housing and U.S. obligations | Level 2    
Assets    
Available-for-sale securities 0 0
Fair Value, Recurring | Housing and U.S. obligations | Level 3    
Assets    
Available-for-sale securities $ 1,667,158 $ 1,664,523