Debt, Public Debt (Details) - Senior Notes [Member] - USD ($) $ in Millions	1 Months Ended
Mar. 31, 2024	Feb. 28, 2023
Debt Purchased and Retired
Debt purchased and retired amount		$ 199
1.200% Valero Senior Notes due 2024 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)	1.20%
Public Debt (Textual)
Repayments of senior debt	$ 167
Interest rate of notes (percent)	1.20%
6.625% Valero Senior Notes due 2037 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		6.625%
Debt purchased and retired amount		$ 62
Public Debt (Textual)
Interest rate of notes (percent)		6.625%
3.650% Valero Senior Notes due 2051 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		3.65%
Debt purchased and retired amount		$ 26
Public Debt (Textual)
Interest rate of notes (percent)		3.65%
4.000% Valero Senior Notes due 2052 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		4.00%
Debt purchased and retired amount		$ 45
Public Debt (Textual)
Interest rate of notes (percent)		4.00%
Various Other Valero and Valero Energy Partners LP Senior Notes [Member]
Debt Purchased and Retired
Debt purchased and retired amount		$ 66

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

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