Inventories (Tables)

12 Months Ended

Dec. 31, 2014

Inventory Disclosure [Abstract]

Inventories

Inventories at December 31 were as follows:

	2014		2013
	(In millions)
Crude oil	$	246	$	291
Natural gas and refined petroleum products		—		618
Less: LIFO adjustment		—		(339	)
		246		570
Materials , supplies and merchandise		281		384
Total inventories	$	527	$	954