Segment Information (Tables)

12 Months Ended

Dec. 31, 2011

Segment Information [Abstract]

Segment activity, including total assets by reportable segment

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

	December 31,
	2011		2010
Refining	$	38,164	$	30,363
Retail	1,999		1,925
Ethanol	943		953
Corporate	1,677		4,380
Total assets	$	42,783	$	37,621

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

	Refining		Retail		Ethanol		Corporate			Total
Year ended December 31, 2011:
Operating revenues from external   customers	$	109,138	$	11,699	$	5,150	$	—		$	125,987
Intersegment revenues	8,665		—		145		—			8,810
Depreciation and amortization expense	1,338		115		39		42			1,534
Operating income (loss)	3,516		381		396		(613		)	3,680
Total expenditures for long-lived assets	2,556		134		32		265			2,987
Year ended December 31, 2010:
Operating revenues from external   customers	69,854		9,339		3,040		—			82,233
Intersegment revenues	6,416		—		245		—			6,661
Depreciation and amortization expense	1,210		108		36		51			1,405
Operating income (loss)	1,903		346		209		(582		)	1,876
Total expenditures for long-lived assets	2,084		102		—		48			2,234
Year ended December 31, 2009:
Operating revenues from external   customers	55,516		7,885		1,198		—			64,599
Intersegment revenues	5,137		—		137		—			5,274
Depreciation and amortization expense	1,194		101		18		48			1,361
Operating income (loss)	247		293		165		(622		)	83
Total expenditures for long-lived assets	2,338		66		5		39			2,448

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,
	2011		2010		2009
Refining:
Gasolines and blendstocks	$	49,019	$	33,491	$	27,322
Distillates	43,713		26,402		20,526
Petrochemicals	4,253		3,161		2,177
Lubes and asphalts	1,948		1,315		1,126
Other product revenues	10,205		5,485		4,365
Total refining operating revenues	109,138		69,854		55,516
Retail:
Fuel sales (gasoline and diesel)	9,730		7,498		6,148
Merchandise sales and other	1,635		1,581		1,505
Home heating oil	334		260		232
Total retail operating revenues	11,699		9,339		7,885
Ethanol:
Ethanol	4,436		2,647		1,032
Distillers grains	714		393		166
Total ethanol operating revenues	5,150		3,040		1,198
Consolidated operating revenues	$	125,987	$	82,233	$	64,599

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 more than 10 percent of our consolidated operating revenues.

	Year Ended December 31,
	2011		2010		2009
U.S.	$	98,806	$	67,392	$	55,247
Canada	10,110		6,945		6,048
U.K.	4,297		149		—
Other countries	12,774		7,747		3,304
Consolidated operating revenues	$	125,987	$	82,233	$	64,599

Geographic information by country for long-lived assets including long-lived assets attributable to discontinued operations

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

	December 31,
	2011		2010
U.S.	$	22,317	$	20,488
Canada	2,362		2,308
U.K.	848		—
Aruba	958		981
Total long-lived assets	$	26,485	$	23,777