Inventories (Tables)

9 Months Ended

Sep. 30, 2012

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consisted of the following (in millions):

	September 30, 2012		December 31, 2011
Refinery feedstocks	$	2,423	$	2,474
Refined products and blendstocks	2,904		2,633
Ethanol feedstocks and products	152		195
Convenience store merchandise	102		103
Materials and supplies	206		218
Inventories	$	5,787	$	5,623