Inventories (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Inventory by Product Type [Abstract]
NGLs		$ 2,107		$ 2,027
Petrochemicals and refined products		328		343
Crude oil		196		285
Natural gas		21		26
Total		2,652		$ 2,681
Summary of cost of sales and lower of cost or net realizable value adjustments [Abstract]
Cost of sales	[1]	10,098	$ 6,263
Lower of cost or net realizable value adjustments recognized in cost of sales		$ 4	$ 10

[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.