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Acquisitions, Divestitures and Other Transactions - Asset Exchange (Details)
$ in Millions
1 Months Ended 12 Months Ended
Jun. 30, 2021
USD ($)
plant
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Business Acquisition [Line Items]        
Gain on divestiture of assets   $ (269) $ (592) $ (719)
(Gains)/losses on asset sales and asset impairments, net        
Business Acquisition [Line Items]        
Gain on divestiture of assets       $ (178)
Inter Pipeline Ltd | Asset Exchange Transaction | (Gains)/losses on asset sales and asset impairments, net        
Business Acquisition [Line Items]        
Gain on divestiture of assets $ 106      
Additional Interests in Straddle Plants | Inter Pipeline Ltd | Asset Exchange Transaction        
Business Acquisition [Line Items]        
Cash consideration, including working capital and other adjustments $ 32      
Additional Interests in Straddle Plants | Inter Pipeline Ltd | NGL | Asset Exchange Transaction        
Business Acquisition [Line Items]        
Number of straddle plants, additional interests acquired | plant 2