Inventories (Tables)

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consisted of the following (in millions):

	September 30, 2013		December 31, 2012
Refinery feedstocks	$	3,109	$	2,458
Refined products and blendstocks	3,582		2,995
Ethanol feedstocks and products	148		191
Convenience store merchandise	—		112
Materials and supplies	224		217
Inventories	$	7,063	$	5,973