Segment Information (Tables)

12 Months Ended

Dec. 31, 2015

Segment Reporting [Abstract]

Segment activity, including total assets by reportable segment

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

	Refining			Ethanol			Retail		Corporate			Total
Year ended December 31, 2015:
Total segment revenues	$	84,521		$	3,434		$	—	$	—		$	87,955
Intersegment elimination	—			(151		)	—		—			(151		)
Operating revenues from external customers	$	84,521		$	3,283		$	—	$	—		$	87,804
Lower of cost or market inventory valuation adjustment	$	740		$	50		$	—	$	—		$	790
Depreciation and amortization expense	1,745			50			—		47			1,842
Operating income (loss)	6,973			142			—		(757		)	6,358
Total expenditures for long-lived assets	2,254			67			—		29			2,350
Year ended December 31, 2014:
Total segment revenues	$	126,004		$	4,940		$	—	$	—		$	130,944
Intersegment elimination	—			(100		)	—		—			(100		)
Operating revenues from external customers	$	126,004		$	4,840		$	—	$	—		$	130,844
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	2,730			42			—		30			2,802
Year ended December 31, 2013:
Total segment revenues	$	131,940		$	5,242		$	3,896	$	—		$	141,078
Intersegment elimination	(2,876		)	(128		)	—		—			(3,004		)
Operating revenues from external customers	$	129,064		$	5,114		$	3,896	$	—		$	138,074
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	2,595			33			62		65			2,755

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

	December 31,
	2015		2014
Refining	$	38,142	$	40,103
Ethanol	1,016		954
Corporate	5,185		4,493
Total assets	$	44,343	$	45,550

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,
	2015		2014		2013
Refining:
Gasolines and blendstocks	$	38,983	$	56,846	$	57,806
Distillates	38,093		57,521		56,921
Petrochemicals	1,824		3,759		4,281
Lubes and asphalts	874		1,397		1,643
Other product revenues	4,747		6,481		8,413
Total refining operating revenues	84,521		126,004		129,064
Ethanol:
Ethanol	2,628		4,192		4,245
Distillers grains	655		648		869
Total ethanol operating revenues	3,283		4,840		5,114
Retail:
Fuel sales (gasoline and diesel)	—		—		3,226
Merchandise sales and other	—		—		524
Home heating oil	—		—		146
Total retail operating revenues	—		—		3,896
Total operating revenues	$	87,804	$	130,844	$	138,074

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,
	2015		2014		2013
U.S.	$	60,319	$	91,499	$	100,418
Canada	6,841		10,410		9,974
U.K. and Ireland	11,232		14,182		13,675
Other countries	9,412		14,753		14,007
Total operating revenues	$	87,804	$	130,844	$	138,074

Geographic information by country for long-lived assets

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

	December 31,
	2015		2014
U.S.	$	25,210	$	24,653
Canada	1,824		2,161
U.K.	1,131		1,199
Aruba	57		59
Ireland	20		22
Total long-lived assets	$	28,242	$	28,094