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Acquisitions and Divestitures (Details)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Jul. 28, 2023
USD ($)
Feb. 28, 2023
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations              
Gains/(losses) on asset sales and asset impairments, net     $ (3) $ 3 $ 150 $ 46  
Keyera Fort Saskatchewan Facility              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations              
Undivided joint interest ownership percentage, sold   0.21          
Proceeds from sale of undivided joint interest   $ 270          
Gains/(losses) on asset sales and asset impairments, net   $ 140          
Keyera Fort Saskatchewan Facility | Other current assets              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations              
Assets held for sale             $ 130
OMOG JV LLC              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations              
Ownership interest in unconsolidated entity prior to acquisition     57.00%   57.00%    
Subsequent Event | OMOG JV LLC              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations              
Ownership interests acquired percentage 43.00%            
Acquisition amount, net to our interest in the Permian JV $ 145            
Ownership interest after acquisition percentage 100.00%            
Subsequent Event | OMOG JV LLC | Permian JV              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations              
Ownership interest in the Permian JV 65.00%            
Subsequent Event | OMOG JV LLC | Permian JV              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations              
Acquisition amount $ 225