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Derivatives and Risk Management Activities - Offsetting Asset and Liabilities (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Derivative Assets    
Effect of Collateral Netting (Liability) $ 141  
Effect of Collateral Netting (Asset)   $ (13)
Commodity Derivatives    
Derivative Assets    
Effect of Collateral Netting (Liability) 141  
Effect of Collateral Netting (Asset)   (13)
Derivative Liabilities    
Gross Position - Assets 46 158
Gross Position - Liabilities (183) (158)
Net Carrying Value Presented on the Balance Sheet, Total 4 (13)
Other current assets | Commodity Derivatives    
Derivative Assets    
Gross Position - Assets 42 153
Gross Position - Liabilities (106) (79)
Effect of Collateral Netting (Liability) 141  
Effect of Collateral Netting (Asset)   (13)
Net Carrying Value Presented on the Balance Sheet 77 61
Other long-term assets, net | Commodity Derivatives    
Derivative Assets    
Gross Position - Assets 2 3
Gross Position - Liabilities (1)  
Net Carrying Value Presented on the Balance Sheet 1 3
Other current liabilities | Commodity Derivatives    
Derivative Liabilities    
Gross Position - Assets 2 1
Gross Position - Liabilities (50) (64)
Net Carrying Value Presented on the Balance Sheet (48) (63)
Other long-term liabilities and deferred credits | Commodity Derivatives    
Derivative Liabilities    
Gross Position - Assets   1
Gross Position - Liabilities (26) (15)
Net Carrying Value Presented on the Balance Sheet $ (26) $ (14)