v3.26.1
Fair Value Measurements (Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Current assets $ 2,249 $ 1,523
Current liabilities 2,232 2,795
Risk Management Assets, Net, Current 187 86
Risk Management Assets, Net, Long-term 185 4
Risk Management Liabilities, Net, Current 32 2
Risk Management 14 13
Commodity Derivatives [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Assets, Net, Current $ 187 $ 86
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration] Risk Management Assets, Net, Current Risk Management Assets, Net, Current
Risk Management Assets, Net, Long-term $ 185 $ 4
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] Risk Management Assets, Net, Long-term Risk Management Assets, Net, Long-term
Risk Management Liabilities, Net, Current $ 32 $ 2
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration] Risk Management Liabilities, Net, Current Risk Management Liabilities, Net, Current
Risk Management $ 14 $ 13
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]   Risk Management
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:AssetsCurrent    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Assets, Gross assets 200 $ 87
Risk Management Assets, Gross Liabilities (13) (1)
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:AssetsCurrent | Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Assets, Gross assets 4 0
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:AssetsCurrent | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Assets, Gross assets 196 87
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:AssetsCurrent | Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Assets, Gross assets 0 0
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:AssetsNoncurrent    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Assets, Gross assets 186 4
Risk Management Assets, Gross Liabilities (1) 0
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:AssetsNoncurrent | Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Assets, Gross assets 0 0
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:AssetsNoncurrent | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Assets, Gross assets 148 3
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:AssetsNoncurrent | Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Assets, Gross assets 38 1
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:LiabilitiesCurrent    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Liabilities, Gross liabilities 45 3
Risk Management Liabilities, Gross Assets (13) (1)
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:LiabilitiesCurrent | Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Liabilities, Gross liabilities 0 0
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:LiabilitiesCurrent | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Liabilities, Gross liabilities 45 3
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:LiabilitiesCurrent | Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Liabilities, Gross liabilities 0 0
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:LiabilitiesNoncurrent    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Liabilities, Gross liabilities 15 13
Risk Management Liabilities, Gross Assets (1) 0
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:LiabilitiesNoncurrent | Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Liabilities, Gross liabilities 0 0
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:LiabilitiesNoncurrent | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Liabilities, Gross liabilities 15 13
Commodity Derivatives [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:LiabilitiesNoncurrent | Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Risk Management Liabilities, Gross liabilities $ 0 $ 0