XML 59 R41.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Segment Information (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011 | Dec. 31, 2011
Segment information for our reportable segments |  |  |  |  |
Operating revenues from external customers | $ 34,662 | $ 31,293 | $ 69,829 | $ 57,601 |
Intersegment revenues | 2,249 | 2,363 | 4,518 | 4,408 |
Operating income (loss) | 1,361 | 1,290 | 1,117 | 1,534 |
Total assets by reportable segment |  |  |  |  |
Reportable segment assets | 41,188 |  | 41,188 |  | 42,783
Refining [Member] |  |  |  |  |
Segment information for our reportable segments |  |  |  |  |
Operating revenues from external customers | 30,488 | 26,921 | 61,638 | 49,483 |
Intersegment revenues | 2,203 | 2,311 | 4,458 | 4,308 |
Operating income (loss) | 1,364 | 1,253 | 1,245 | 1,529 |
Total assets by reportable segment |  |  |  |  |
Reportable segment assets | 36,602 |  | 36,602 |  | 38,164
Retail [Member] |  |  |  |  |
Segment information for our reportable segments |  |  |  |  |
Operating revenues from external customers | 3,062 | 3,128 | 5,997 | 5,812 |
Intersegment revenues | 0 | 0 | 0 | 0 |
Operating income (loss) | 172 | 135 | 212 | 201 |
Total assets by reportable segment |  |  |  |  |
Reportable segment assets | 1,973 |  | 1,973 |  | 1,999
Ethanol [Member] |  |  |  |  |
Segment information for our reportable segments |  |  |  |  |
Operating revenues from external customers | 1,112 | 1,244 | 2,194 | 2,306 |
Intersegment revenues | 46 | 52 | 60 | 100 |
Operating income (loss) | 5 | 64 | 14 | 108 |
Total assets by reportable segment |  |  |  |  |
Reportable segment assets | 926 |  | 926 |  | 943
Corporate [Member] |  |  |  |  |
Segment information for our reportable segments |  |  |  |  |
Operating revenues from external customers | 0 | 0 | 0 | 0 |
Intersegment revenues | 0 | 0 | 0 | 0 |
Operating income (loss) | (180) | (162) | (354) | (304) |
Total assets by reportable segment |  |  |  |  |
Reportable segment assets | $ 1,687 |  | $ 1,687 |  | $ 1,677

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Concepts (CON) -Number 6 -Paragraph 25 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Revenue related to the downstream oil and gas activities, including the refining of crude oil, as well as the marketing and distribution of crude oil, refined petroleum products, and natural gas. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62136-109447 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62246-109447 + Details
Name: | us-gaap_RefiningAndMarketingRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenue from transactions with other operating segments of the same entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 27 -Subparagraph b -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. + Details
Name: | us-gaap_RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_SegmentReportingInformationOperatingIncomeLossAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | vlo_ReportableSegmentTotalAssetsAbstract
Namespace Prefix: | vlo_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration