Debt, Public Debt (Details) - Senior Notes [Member] - USD ($)	1 Months Ended
	Feb. 28, 2023	Feb. 28, 2022
Debt Purchased and Retired
Debt purchased and retired amount	$ 199,000,000	$ 1,400,000,000
6.625% Valero Senior Notes due 2037 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)	6.625%
Debt purchased and retired amount	$ 62,000,000
3.650% Valero Senior Notes due 2051 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)	3.65%
Debt purchased and retired amount	$ 26,000,000
4.000% Valero Senior Notes due 2052 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)	4.00%
Debt purchased and retired amount	$ 45,000,000
Various other Valero and Valero Energy Partners (VLP) Senior Notes [Member]
Debt Purchased and Retired
Debt purchased and retired amount	$ 66,000,000
4.000% Valero Senior Notes due June 1, 2052 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		4.00%
Public Debt (Textual)
Face amount of long-term debt issuance		$ 650,000,000
Proceeds from issuance of senior long-term debt		$ 639,000,000
3.65% Valero Senior Notes due 2025 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		3.65%
Debt purchased and retired amount		$ 72,000,000
2.850% Valero Senior Notes due 2025 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		2.85%
Debt purchased and retired amount		$ 507,000,000
4.375% VLP Senior Notes due 2026 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		4.375%
Debt purchased and retired amount		$ 168,000,000
3.400% Valero Senior Notes due 2026 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		3.40%
Debt purchased and retired amount		$ 653,000,000