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Quarterly Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract] |
QUARTERLY FINANCIAL DATA (Unaudited) |
22. | QUARTERLY FINANCIAL DATA (Unaudited)
The following table summarizes quarterly financial data for the years ended December 31, 2012 and 2011 (in millions, except per share amounts).
| 2012 Quarter Ended
| March 31 (a) |  | June 30 |  | September 30 |  | December 31
Operating revenues | $ | 35,167 |  |  | $ | 34,662 |  |  | $ | 34,726 |  |  | $ | 34,695 |
Operating income (loss) | (244 | ) |  | 1,361 |  |  | 1,309 |  |  | 1,584 |
Income (loss) from continuing operations | (432 | ) |  | 830 |  |  | 673 |  |  | 1,009 |
Net income (loss) | (432 | ) |  | 830 |  |  | 673 |  |  | 1,009 |
Net income (loss) attributable to Valero Energy Corporation stockholders | (432 | ) |  | 831 |  |  | 674 |  |  | 1,010 |
Earnings (loss) per common share from continuing operations – assuming dilution | (0.78 | ) |  | 1.50 |  |  | 1.21 |  |  | 1.82 |
Earnings (loss) per common share – assuming dilution | (0.78 | ) |  | 1.50 |  |  | 1.21 |  |  | 1.82 |
| 2011 Quarter Ended
| March 31 |  | June 30 |  | September 30 (b) |  | December 31 (c)
Operating revenues | $ | 26,308 |  |  | $ | 31,293 |  |  | $ | 33,713 |  |  | $ | 34,673 |
Operating income | 244 |  |  | 1,290 |  |  | 1,979 |  |  | 167 |
Income from continuing operations | 104 |  |  | 744 |  |  | 1,203 |  |  | 45 |
Net income | 98 |  |  | 743 |  |  | 1,203 |  |  | 45 |
Net income attributable to Valero Energy Corporation stockholders | 98 |  |  | 744 |  |  | 1,203 |  |  | 45 |
Earnings per common share from continuing operations – assuming dilution | 0.18 |  |  | 1.30 |  |  | 2.11 |  |  | 0.08 |
Earnings per common share – assuming dilution | 0.17 |  |  | 1.30 |  |  | 2.11 |  |  | 0.08 |
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(a) | The operations of the Aruba Refinery were suspended in March 2012.
(b) | Includes the operations related to the Pembroke Acquisition beginning August 1, 2011.
(c) | Includes the operations related to the Meraux Acquisition beginning October 1, 2011.

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- Definition The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=20225539&loc=d3e1280-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 30 -Subparagraph a-j -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 23, 24 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a + Details
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