v3.26.1
Derivatives and Hedging Activities Cumulative adjustments table (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Advances    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amortized Cost of Hedged Asset, Fair Value Hedge $ 13,478 $ 15,644
Basis Adjustment for Active Fair Value Hedged Asset Cumulative Increase Decrease (34) 8
Basis Adjustment for Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) (3) 0
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) (37) 8
Available-for-sale Securities    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amortized Cost of Hedged Asset, Fair Value Hedge 19,109 19,194
Basis Adjustment for Active Fair Value Hedged Asset Cumulative Increase Decrease (629) (563)
Basis Adjustment for Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) 349 387
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) (280) (176)
Consolidated Obligations, Bonds    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amortized Cost of Hedged Liability, Fair Value Hedge (13,955) (20,438)
Basis Adjustment for Active Fair Value Hedged Liability Cumulative Increase Decrease 105 95
Basis Adjustment for Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) 0 0
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) 105 95
Discount notes    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Amortized Cost of Hedged Liability, Fair Value Hedge (18,566) (14,683)
Basis Adjustment for Active Fair Value Hedged Asset Cumulative Increase Decrease 1 (3)
Basis Adjustment for Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) 0 0
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) $ 1 $ (3)