Inventories (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Inventory by Product Type [Abstract]
NGLs		$ 1,678		$ 1,678		$ 1,689
Petrochemicals and refined products		273		273		430
Crude oil		530		530		411
Natural gas		16		16		24
Total		2,497		2,497		$ 2,554
Summary of cost of sales and lower of cost or net realizable value adjustments [Abstract]
Cost of sales	[1]	7,679	$ 12,908	17,010	$ 23,006
Lower of cost or net realizable value adjustments recognized in cost of sales		$ 2	$ 3	$ 9	$ 7

[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.