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Inventories (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Inventory by Product Type [Abstract]          
NGLs $ 2,550   $ 2,550   $ 1,689
Petrochemicals and refined products 400   400   430
Crude oil 388   388   411
Natural gas 7   7   24
Total 3,345   3,345   $ 2,554
Summary of cost of sales and lower of cost or net realizable value adjustments [Abstract]          
Cost of sales [1] 8,786 $ 12,319 25,796 $ 35,325  
Lower of cost or net realizable value adjustments recognized in cost of sales $ 8 $ 11 $ 17 $ 18  
[1] Cost of sales is a component of “Operating costs and expenses” as presented on our Unaudited Condensed Statements of Consolidated Operations.  Fluctuations in these amounts are primarily due to changes in energy commodity prices and sales volumes associated with our marketing activities.