Segment Information (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Segment activity, including total assets by reportable segment

Total assets by reportable segment were as follows (in millions):

	December 31,
	2014		2013
Refining	$	40,103	$	41,227
Ethanol	954		889
Corporate	4,493		5,144
Total assets	$	45,550	$	47,260

In March 2014, we purchased an idled corn ethanol plant in Mount Vernon, Indiana for $34 million from a wholly owned subsidiary of Aventine Renewable Energy Holdings, Inc. We resumed production at that plant during the third quarter of 2014. In the fourth quarter of 2014, an independent appraisal of the assets acquired and liabilities assumed and certain other evaluations of the fair values related to the Mount Vernon plant were completed and finalized. The purchase price of the Mount Vernon plant was allocated based on the fair values of the assets acquired and the liabilities assumed at the date of acquisition resulting from this final appraisal and other evaluations. There were no significant adjustments made to the preliminary purchase price allocation.

The following table reflects activity related to continuing operations (in millions):

	Refining		Ethanol			Retail		Corporate			Total
Year ended December 31, 2014:
Operating revenues from external customers	$	126,004	$	4,840		$	—	$	—		$	130,844
Intersegment revenues	—		100			—		—			100
Depreciation and amortization expense	1,597		49			—		44			1,690
Operating income (loss)	5,884		786			—		(768		)	5,902
Total expenditures for long-lived assets	2,750		42			—		30			2,822
Year ended December 31, 2013:
Operating revenues from external customers	129,064		5,114			3,896		—			138,074
Intersegment revenues	2,876		128			—		—			3,004
Depreciation and amortization expense	1,566		45			41		68			1,720
Operating income (loss)	4,211		491			81		(826		)	3,957
Total expenditures for long-lived assets	2,597		33			62		65			2,757
Year ended December 31, 2012:
Operating revenues from external customers	122,068		4,317			12,008		—			138,393
Intersegment revenues	8,946		115			—		—			9,061
Depreciation and amortization expense	1,345		42			119		43			1,549
Operating income (loss)	5,484		(47		)	348		(741		)	5,044
Total expenditures for long-lived assets	3,147		36			164		66			3,413

Operating revenues from external customers by product

Operating revenues from external customers for our principal products were as follows (in millions):

	Year Ended December 31,
	2014		2013		2012
Refining:
Gasolines and blendstocks	$	56,846	$	57,806	$	55,647
Distillates	57,521		56,921		51,095
Petrochemicals	3,759		4,281		3,908
Lubes and asphalts	1,397		1,643		2,033
Other product revenues	6,481		8,413		9,385
Total refining operating revenues	126,004		129,064		122,068
Ethanol:
Ethanol	4,192		4,245		3,545
Distillers grains	648		869		772
Total ethanol operating revenues	4,840		5,114		4,317
Retail:
Fuel sales (gasoline and diesel)	—		3,226		10,045
Merchandise sales and other	—		524		1,649
Home heating oil	—		146		314
Total retail operating revenues	—		3,896		12,008
Total operating revenues	$	130,844	$	138,074	$	138,393

Operating revenues by geographic area of customer

Operating revenues by geographic area are shown in the table below (in millions). The geographic area is based on location of customer and no customer accounted for 10 percent or more of our operating revenues.

	Year Ended December 31,
	2014		2013		2012
U.S.	$	91,499	$	100,418	$	99,879
Canada	10,410		9,974		10,376
U.K. and Ireland	14,182		13,675		12,818
Other countries	14,753		14,007		15,320
Total operating revenues	$	130,844	$	138,074	$	138,393

Geographic information by country for long-lived assets

Geographic information by country for long-lived assets consisted of the following (in millions):

	December 31,
	2014		2013
U.S.	$	24,710	$	23,572
Canada	2,250		2,260
U.K.	1,206		1,148
Aruba	59		53
Ireland	22		26
Total long-lived assets	$	28,247	$	27,059