Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following:

	March 31,		December 31,
	2016		2015
	(In millions)
Crude oil and natural gas liquids	$	144	$	144
Materials and supplies		272		255
Total inventories	$	416	$	399