Inventories (Tables)

6 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following:

	June 30,		December 31,
	2019		2018
	(In millions)
Crude oil and natural gas liquids	$	82	$	74
Materials and supplies		196		171
Total Inventories	$	278	$	245