v3.26.3
Stockholders' Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance $ 32,449 $ 31,867
Balance 32,827 32,033
Net unrealized gains/(losses) on cash flow hedge derivatives    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance 67 (33)
Other comprehensive gain (loss) before reclassifications (308) 145
(Gain) loss reclassified from accumulated other comprehensive loss 110 (59)
Net current-period change in accumulated other comprehensive loss (198) 86
Balance (131) 53
Pension and other postretirement liability adjustments    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance (22) (62)
Other comprehensive gain (loss) before reclassifications (9) (5)
(Gain) loss reclassified from accumulated other comprehensive loss 0 0
Net current-period change in accumulated other comprehensive loss (9) (5)
Balance (31) (67)
Total accumulated other comprehensive income (loss)    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance 45 (95)
Other comprehensive gain (loss) before reclassifications (317) 140
(Gain) loss reclassified from accumulated other comprehensive loss 110 (59)
Net current-period change in accumulated other comprehensive loss (207) 81
Balance $ (162) $ (14)