v3.26.1
Other Comprehensive Income (Loss) - Schedule of Other Comprehensive Income Amounts Reclassified to Statement of Operations (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Sales and other revenues $ 10,390 $ 6,784 $ 17,513 $ 13,154
Income tax benefit 279 36 468 37
Net of tax 893 210 1,543 208
Other income (expense), net 3 7 18 (46)
Reclassification out of Accumulated Other Comprehensive Income (Loss)        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net of tax 0 1 1 1
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Hedging instruments:        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Sales and other revenues (1) 0 (1) 0
Income tax benefit (1) 0 (1) 0
Net of tax 0 0 0 0
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Post-retirement healthcare obligations | Post-retirement healthcare obligations        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income tax benefit 1 0 1 1
Net of tax 0 1 1 1
Other income (expense), net $ 1 $ 1 $ 2 $ 2