v3.26.1
Fair Value Measurements - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Details) - Commodity Contract - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Natural Gas Swaps | Price Swaps    
Financial Assets:    
Assets, fair value disclosure $ 53 $ 12
Financial Liabilities:    
Liabilities, fair value disclosure   1
Natural Gas Swaps | Price Swaps | Quoted Prices in Active Markets (Level 1)    
Financial Assets:    
Assets, fair value disclosure 0 0
Financial Liabilities:    
Liabilities, fair value disclosure   0
Natural Gas Swaps | Price Swaps | Significant Other Observable Inputs (Level 2)    
Financial Assets:    
Assets, fair value disclosure 53 12
Financial Liabilities:    
Liabilities, fair value disclosure   1
Natural Gas Swaps | Price Swaps | Significant Unobservable Inputs (Level 3)    
Financial Assets:    
Assets, fair value disclosure 0 0
Financial Liabilities:    
Liabilities, fair value disclosure   0
Natural Gas Swaps | Brent Linked Gas Sales Contract    
Financial Assets:    
Assets, fair value disclosure 152 31
Financial Liabilities:    
Liabilities, fair value disclosure 2  
Natural Gas Swaps | Brent Linked Gas Sales Contract | Quoted Prices in Active Markets (Level 1)    
Financial Assets:    
Assets, fair value disclosure 0 0
Financial Liabilities:    
Liabilities, fair value disclosure 0  
Natural Gas Swaps | Brent Linked Gas Sales Contract | Significant Other Observable Inputs (Level 2)    
Financial Assets:    
Assets, fair value disclosure 0 0
Financial Liabilities:    
Liabilities, fair value disclosure 0  
Natural Gas Swaps | Brent Linked Gas Sales Contract | Significant Unobservable Inputs (Level 3)    
Financial Assets:    
Assets, fair value disclosure 152 31
Financial Liabilities:    
Liabilities, fair value disclosure 2  
Natural Gas Collars | Natural Gas Collars    
Financial Assets:    
Assets, fair value disclosure 11 4
Financial Liabilities:    
Liabilities, fair value disclosure 1 1
Natural Gas Collars | Natural Gas Collars | Quoted Prices in Active Markets (Level 1)    
Financial Assets:    
Assets, fair value disclosure 0 0
Financial Liabilities:    
Liabilities, fair value disclosure 0 0
Natural Gas Collars | Natural Gas Collars | Significant Other Observable Inputs (Level 2)    
Financial Assets:    
Assets, fair value disclosure 11 4
Financial Liabilities:    
Liabilities, fair value disclosure 1 1
Natural Gas Collars | Natural Gas Collars | Significant Unobservable Inputs (Level 3)    
Financial Assets:    
Assets, fair value disclosure 0 0
Financial Liabilities:    
Liabilities, fair value disclosure 0 0
Natural Gas Liquids | Price Swaps    
Financial Assets:    
Assets, fair value disclosure 1 2
Natural Gas Liquids | Price Swaps | Quoted Prices in Active Markets (Level 1)    
Financial Assets:    
Assets, fair value disclosure 0 0
Natural Gas Liquids | Price Swaps | Significant Other Observable Inputs (Level 2)    
Financial Assets:    
Assets, fair value disclosure 1 2
Natural Gas Liquids | Price Swaps | Significant Unobservable Inputs (Level 3)    
Financial Assets:    
Assets, fair value disclosure $ 0 $ 0