Condensed Consolidating Financial Statements (Details) - Valero Energy Partners LP [Member] - Senior Notes [Member]	Sep. 30, 2019	Sep. 30, 2018
VLP Senior Notes Due December 15, 2026 [Member]
Debt Instrument [Line Items]
Stated rate on debt instrument (percent)	4.375%
VLP Senior Notes Due March 15, 2028 [Member]
Debt Instrument [Line Items]
Stated rate on debt instrument (percent)	4.50%	4.50%

Contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant