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Debt and Capital Lease Obligations, Narrative (Details) - USD ($) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Dec. 31, 2017
Peru Acquisition [Member] |  |  |
Credit Facilities (Textual) |  |  |
Amount of debt retired |  | $ 137,000,000 |
Senior Notes [Member] | Senior Notes Due June 2028 [Member] |  |  |
Credit Facilities (Textual) |  |  |
Face amount of long-term debt issuance |  | $ 750,000,000 |
Stated rate on debt instrument (percent) |  | 4.35% |
Maturity date of long-term debt |  | Jun. 01, 2028 |
Proceeds from issuance of senior long-term debt |  | $ 749,000,000 |
Debt issuance costs |  | $ 7,000,000 |
Senior Notes [Member] | Senior Notes Due March 2019 [Member] |  |  |
Credit Facilities (Textual) |  |  |
Stated rate on debt instrument (percent) |  | 9.375% |
Maturity date of long-term debt |  | Mar. 15, 2019 |
Early repayment of senior debt |  | $ 787,000,000 |
Early redemption fee |  | 37,000,000 |
Senior Notes [Member] | VLP Senior Notes Due March 2028 [Member] | Valero Energy Partners LP [Member] |  |  |
Credit Facilities (Textual) |  |  |
Face amount of long-term debt issuance |  | $ 500,000,000 |
Stated rate on debt instrument (percent) |  | 4.50% |
Maturity date of long-term debt |  | Mar. 15, 2028 |
Proceeds from issuance of senior long-term debt |  | $ 498,000,000 |
Debt issuance costs |  | 5,000,000 |
Credit Facilities [Member] | A/R Sales Facility [Member] |  |  |
Credit Facilities (Textual) |  |  |
Line of credit facility, maximum borrowing capacity | [1] | $ 1,300,000,000 |
Maturity date of credit facility | [1] | Jul. 31, 2018 |
Variable interest rate (percent) |  | 2.7009% | 2.0387%
Credit Facilities [Member] | Valero Energy Partners LP [Member] | VLP Revolver [Member] |  |  |
Credit Facilities (Textual) |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 750,000,000 |
Maturity date of credit facility |  | Nov. 30, 2020 |
Credit Facilities [Member] | Central Mexico Terminals [Member] | IEnova Revolver [Member] |  |  |
Credit Facilities (Textual) |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 340,000,000 |
Outstanding borrowings on amounts reflected in current portion of debt |  | 56,000,000 |
Repayments on lines of credit |  | $ 0 |
Maturity date of credit facility |  | Feb. 28, 2028 |
Variable interest rate (percent) |  | 5.958% |
Credit Facilities [Member] | VLP Revolver [Member] | Valero Energy Partners LP [Member] |  |  |
Credit Facilities (Textual) |  |  |
Repayments of outstanding amounts under the VLP revolver |  | $ 410,000,000 |
Subordinated Debt [Member] | VLP Subordinated Notes [Member] | Valero Energy Partners LP [Member] |  |  |
Credit Facilities (Textual) |  |  |
Repayments of notes payable-related party |  | $ 85,000,000 |
[1] | In July 2018, we amended this facility to extend the maturity date from July 2018 to July 2019.

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- Definition The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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