Inventories

6 Months Ended

Jun. 30, 2016

Inventory Disclosure [Abstract]

Inventories

3.  Inventories

Inventories consisted of the following:

	June 30,		December 31,
	2016		2015
	(In millions)
Crude oil and natural gas liquids	$	95	$	144
Materials and supplies		282		255
Total inventories	$	377	$	399