v3.26.3
Capital Accounts - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance $ 31,064 $ 29,919 $ 30,570 $ 29,589
Total other comprehensive income (loss) (217) 28 (379) 28
Ending balance 31,186 30,050 31,186 30,050
Interest expense 385 354 1,154 1,026
Revenue (17,948) (12,023) (50,603) (38,803)
Operating costs and expenses 15,985 10,366 44,553 33,648
Total (1,638) (1,356) (4,990) (4,216)
Reclassification out of Accumulated Other Comprehensive Income        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Total 30 (37) 169 (73)
Cash Flow Hedges | Commodity Derivative Instruments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     184 91
Other comprehensive income (loss) for period, before reclassifications     (548) 87
Reclassification of losses (gains) to net income during period     174 (68)
Total other comprehensive income (loss)     (374) 19
Ending balance (190) 110 (190) 110
Cash Flow Hedges | Commodity Derivative Instruments | Reclassification out of Accumulated Other Comprehensive Income        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Revenue 22 (47) 144 (100)
Operating costs and expenses 9 12 30 32
Cash Flow Hedges | Interest Rate Derivative Instruments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     150 143
Other comprehensive income (loss) for period, before reclassifications     0 14
Reclassification of losses (gains) to net income during period     (5) (5)
Total other comprehensive income (loss)     (5) 9
Ending balance 145 152 145 152
Cash Flow Hedges | Interest Rate Derivative Instruments | Reclassification out of Accumulated Other Comprehensive Income        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Interest expense (1) (2) (5) (5)
Other        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     2 2
Other comprehensive income (loss) for period, before reclassifications     0 0
Reclassification of losses (gains) to net income during period     0 0
Total other comprehensive income (loss)     0 0
Ending balance 2 2 2 2
Accumulated Other Comprehensive Income (Loss)        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     336 236
Other comprehensive income (loss) for period, before reclassifications     (548) 101
Reclassification of losses (gains) to net income during period     169 (73)
Total other comprehensive income (loss)     (379) 28
Ending balance $ (43) $ 264 $ (43) $ 264