v3.26.1
Consolidated Obligations Discount Notes (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Short-term Debt [Line Items]    
Total $ 97,342 $ 84,620
Short-term Debt [Member]    
Short-term Debt [Line Items]    
Par value $ 98,284 $ 85,186
Par Value, Weighted Average Interest Rate 3.59% 3.76%
Discounts and concessions $ (914) $ (586)
Fair Value, Option, Aggregate Differences, Consolidated Obligation Discount Notes (2) 3
Consolidated Obligation Discount Notes [Member]    
Short-term Debt [Line Items]    
Fair Value, Option, Aggregate Differences, Consolidated Obligation Discount Notes (40) (122)
Consolidated Obligation Bonds [Member]    
Short-term Debt [Line Items]    
Discounts and concessions (21) (23)
Fair value hedging adjustments (70) 56
Consolidated Obligation Discount Notes [Member]    
Short-term Debt [Line Items]    
Fair value hedging adjustments $ (26) $ 17