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Segment Information (Tables) | 12 Months Ended
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Dec. 31, 2012
Segment Reporting [Abstract] |
Segment activity, including total assets by reportable segment | The following table reflects activity related to continuing operations (in millions):
| Refining |  | Retail |  | Ethanol |  | Corporate |  | Total
Year ended December 31, 2012: |  |  |  |  |  |  |  |  |
Operating revenues from external customers | $ | 122,925 |  |  | $ | 12,008 |  |  | $ | 4,317 |  |  | $ | — |  |  | $ | 139,250 |
Intersegment revenues | 8,946 |  |  | — |  |  | 115 |  |  | — |  |  | 9,061 |
Depreciation and amortization expense | 1,370 |  |  | 119 |  |  | 42 |  |  | 43 |  |  | 1,574 |
Operating income (loss) | 4,450 |  |  | 348 |  |  | (47 | ) |  | (741 | ) |  | 4,010 |
Total expenditures for long-lived assets | 3,147 |  |  | 164 |  |  | 36 |  |  | 66 |  |  | 3,413 |
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 | 2,708 |  |  | 134 |  |  | 32 |  |  | 113 |  |  | 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 |
Total assets by reportable segment were as follows (in millions):
| December 31,
| 2012 |  | 2011
Refining | $ | 39,490 |  |  | $ | 38,164 |
Retail | 2,043 |  |  | 1,999 |
Ethanol | 929 |  |  | 943 |
Corporate | 2,015 |  |  | 1,677 |
Total assets | $ | 44,477 |  |  | $ | 42,783 |
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,
| 2012 |  | 2011 |  | 2010
Refining: |  |  |  |  |
Gasolines and blendstocks | $ | 55,647 |  |  | $ | 49,019 |  |  | $ | 33,491 |
Distillates | 51,504 |  |  | 43,713 |  |  | 26,402 |
Petrochemicals | 3,908 |  |  | 4,253 |  |  | 3,161 |
Lubes and asphalts | 2,033 |  |  | 1,948 |  |  | 1,315 |
Other product revenues | 9,833 |  |  | 10,205 |  |  | 5,485 |
Total refining operating revenues | 122,925 |  |  | 109,138 |  |  | 69,854 |
Retail: |  |  |  |  |
Fuel sales (gasoline and diesel) | 10,045 |  |  | 9,730 |  |  | 7,498 |
Merchandise sales and other | 1,649 |  |  | 1,635 |  |  | 1,581 |
Home heating oil | 314 |  |  | 334 |  |  | 260 |
Total retail operating revenues | 12,008 |  |  | 11,699 |  |  | 9,339 |
Ethanol: |  |  |  |  |
Ethanol | 3,545 |  |  | 4,436 |  |  | 2,647 |
Distillers grains | 772 |  |  | 714 |  |  | 393 |
Total ethanol operating revenues | 4,317 |  |  | 5,150 |  |  | 3,040 |
Consolidated operating revenues | $ | 139,250 |  |  | $ | 125,987 |  |  | $ | 82,233 |
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,
| 2012 |  | 2011 |  | 2010
U.S. | $ | 100,733 |  |  | $ | 98,806 |  |  | $ | 67,392 |
Canada | 10,376 |  |  | 10,110 |  |  | 6,945 |
U.K. | 10,779 |  |  | 4,297 |  |  | 149 |
Other countries | 17,362 |  |  | 12,774 |  |  | 7,747 |
Consolidated operating revenues | $ | 139,250 |  |  | $ | 125,987 |  |  | $ | 82,233 |
Geographic information by country for long-lived assets | Geographic information by country for long-lived assets consisted of the following (in millions):
| December 31,
| 2012 |  | 2011
U.S. | $ | 23,760 |  |  | $ | 22,317 |
Canada | 2,639 |  |  | 2,372 |
U.K. | 1,110 |  |  | 848 |
Aruba | 41 |  |  | 958 |
Ireland | 37 |  |  | — |
Total long-lived assets | $ | 27,587 |  |  | $ | 26,495 |

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