Segment Information (Tables)

12 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

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,
	2016		2015		2014
Refining:
Gasolines and blendstocks	$	33,450	$	38,983	$	56,846
Distillates	32,576		38,093		57,521
Other product revenues	5,942		7,445		11,637
Total refining revenues	71,968		84,521		126,004
Ethanol:
Ethanol	3,105		2,628		4,192
Distillers grains	586		655		648
Total ethanol revenues	3,691		3,283		4,840
Total revenues from external customers	$	75,659	$	87,804	$	130,844

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,
	2016		2015		2014
U.S.	$	51,479	$	60,319	$	91,499
Canada	6,115		6,841		10,410
U.K. and Ireland	10,797		11,232		14,182
Other countries	7,268		9,412		14,753
Total operating revenues	$	75,659	$	87,804	$	130,844

Geographic information by country for long-lived assets

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

	December 31,
	2016		2015
U.S.	$	25,359	$	25,210
Canada	1,816		1,824
U.K.	947		1,131
Aruba	—		57
Ireland	20		20
Total long-lived assets	$	28,142	$	28,242

Segment activity, including total assets by reportable segment

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

	Refining			Ethanol			Corporate and Eliminations			Total
Year ended December 31, 2016:
Operating revenues from external customers	$	71,968		$	3,691		$	—		$	75,659
Intersegment revenues	—			210			(210		)	—
Total segment revenues	$	71,968		$	3,901		$	(210	)	$	75,659
Lower of cost or market inventory valuation adjustment	$	(697	)	$	(50	)	$	—		$	(747	)
Depreciation and amortization expense	1,780			66			48			1,894
Asset impairment loss	56			—			—			56
Operating income (loss)	3,995			340			(763		)	3,572
Total expenditures for long-lived assets	1,890			68			38			1,996
Year ended December 31, 2015:
Operating revenues from external customers	$	84,521		$	3,283		$	—		$	87,804
Intersegment revenues	—			151			(151		)	—
Total segment revenues	$	84,521		$	3,434		$	(151	)	$	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

	Refining		Ethanol		Corporate and Eliminations			Total
Year ended December 31, 2014:
Operating revenues from external customers	$	126,004	$	4,840	$	—		$	130,844
Intersegment revenues	—		100		(100		)	—
Total segment revenues	$	126,004	$	4,940	$	(100	)	$	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

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

	December 31,
	2016		2015
Refining	$	39,034	$	38,068
Ethanol	1,316		1,016
Corporate	5,823		5,143
Total assets	$	46,173	$	44,227