v3.26.1
Derivatives and Financial Instruments - Schedule of Gains (Losses) from Commodity Derivatives (Details) - Commodity derivatives - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Derivative Instruments, Gain (Loss) [Line Items]        
Net gain (loss) from commodity derivative activity $ 643 $ 257 $ (2,003) $ 30
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold        
Derivative Instruments, Gain (Loss) [Line Items]        
Net gain (loss) from commodity derivative activity 326 54 (890) (122)
Location, Statement of Income, Balance [Axis]: us-gaap:NonoperatingIncomeExpense        
Derivative Instruments, Gain (Loss) [Line Items]        
Net gain (loss) from commodity derivative activity 83 54 189 68
Location, Statement of Income, Balance [Axis]: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax        
Derivative Instruments, Gain (Loss) [Line Items]        
Net gain (loss) from commodity derivative activity $ 234 $ 149 $ (1,302) $ 84