v3.26.3
Derivative Instruments - Cumulative Fair Value Hedging Adjustments (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Cumulative amount of fair value hedging adjustments included in the carrying amount of hedged items:    
Cumulative basis adjustments for active hedging relationships $ (3,176) $ 641
Commodity contracts    
Assets    
Carrying amount of the hedged items 8,000 22,900
Long-term debt    
Liabilities    
Carrying amount of the hedged items 220,348 222,611
Cumulative amount of fair value hedging adjustments included in the carrying amount of hedged items:    
Active hedging relationships (9,674) 232
Discontinued hedging relationships (8,013) (8,689)
Total (17,687) (8,457)
Long-term debt | Not designated as hedges    
Liabilities    
Carrying amount of the hedged items 2,300 587
Beneficial interests issued by consolidated VIEs    
Liabilities    
Carrying amount of the hedged items 5,856 5,884
Cumulative amount of fair value hedging adjustments included in the carrying amount of hedged items:    
Active hedging relationships (91) 37
Discontinued hedging relationships (1) 0
Total (92) 37
Investment securities    
Assets    
Carrying amount of the hedged items 241,794 255,109
Cumulative amount of fair value hedging adjustments included in the carrying amount of hedged items:    
Active hedging relationships (7,003) 3,693
Discontinued hedging relationships (1,072) (1,374)
Total (8,075) 2,319
Cumulative amount of fair value hedging adjustments included in the carrying amount of hedged items:    
Amortized cost of the closed portfolio 76,900 91,900
Designated hedged items in active hedging relationships 60,000 68,900
Cumulative basis adjustments (3,800) (32)
Cumulative basis adjustments for active hedging relationships (3,200) 641
Cumulative basis adjustments for discontinued hedging relationships (575) (673)
Investment securities | Not designated as hedges    
Assets    
Carrying amount of the hedged items $ 38,400 $ 33,600