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v2.4.1.9

Debt, Accounts Receivable Sales Facility and Capitalized Interest (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014
Capitalized Interest (Textual) |  |  |
Interest costs incurred, capitalized | $ 16,000,000 us-gaap_InterestCostsIncurredCapitalized | $ 17,000,000 us-gaap_InterestCostsIncurredCapitalized |
Credit Facilities [Member] | A/R Sales Facility [Member] |  |  |
Accounts Receivable Sales Facility (Textual) |  |  |
Line of credit facility, maximum borrowing capacity | 1,500,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = vlo_ARSalesFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  |
Maturity date of accounts receivable sales facility | Jul. 31, 2015 |  |
Proceeds from accounts receivable sales facility | 0 us-gaap_ProceedsFromOtherDebt / us-gaap_CreditFacilityAxis = vlo_ARSalesFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember | 0 us-gaap_ProceedsFromOtherDebt / us-gaap_CreditFacilityAxis = vlo_ARSalesFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
Repayments under accounts receivable sales facility | 0 us-gaap_RepaymentsOfOtherDebt / us-gaap_CreditFacilityAxis = vlo_ARSalesFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember | 0 us-gaap_RepaymentsOfOtherDebt / us-gaap_CreditFacilityAxis = vlo_ARSalesFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
Amount outstanding | $ 100,000,000 us-gaap_OtherBorrowings / us-gaap_CreditFacilityAxis = vlo_ARSalesFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  | $ 100,000,000 us-gaap_OtherBorrowings / us-gaap_CreditFacilityAxis = vlo_ARSalesFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember

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- Definition Amount of interest capitalized, including amount of allowance for funds used during construction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 835 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501662&loc=d3e56162-110433 + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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