Face (par) amount of debt instrument at time of issuance.

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

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The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.

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The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

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Debt, Public Debt (Details) - USD ($)	1 Months Ended
Debt, Public Debt (Details) - USD ($)	Feb. 28, 2023	Sep. 30, 2022	Jun. 30, 2022	Feb. 28, 2022
Senior Notes [Member]
Debt Purchased and Retired
Debt purchased and retired amount	$ 199,000,000	$ 1,250,000,000		$ 1,400,000,000
Senior Notes [Member] \| 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
Senior Notes [Member] \| 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
Senior Notes [Member] \| 4.000% Valero Senior Notes due 2052 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)	4.00%			4.00%
Debt purchased and retired amount	$ 45,000,000
Public Debt (Textual)
Face amount of long-term debt issuance				$ 650,000,000
Proceeds from issuance of senior long-term debt				$ 639,000,000
Senior Notes [Member] \| Various other Valero and Valero Energy Partners (VLP) Senior Notes [Member]
Debt Purchased and Retired
Debt purchased and retired amount	$ 66,000,000
Senior Notes [Member] \| 3.65% Valero Senior Notes due 2025 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		3.65%		3.65%
Debt purchased and retired amount		$ 48,000,000		$ 72,000,000
Senior Notes [Member] \| 2.850% Valero Senior Notes due 2025 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		2.85%		2.85%
Debt purchased and retired amount		$ 291,000,000		$ 507,000,000
Senior Notes [Member] \| 4.375% VLP Senior Notes due 2026 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		4.375%		4.375%
Debt purchased and retired amount		$ 62,000,000		$ 168,000,000
Senior Notes [Member] \| 3.400% Valero Senior Notes due 2026 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		3.40%		3.40%
Debt purchased and retired amount		$ 166,000,000		$ 653,000,000
Senior Notes [Member] \| 4.350% Valero Senior Notes due 2028 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		4.35%
Debt purchased and retired amount		$ 131,000,000
Senior Notes [Member] \| 4.000% Valero Senior Notes due 2029 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)		4.00%
Debt purchased and retired amount		$ 552,000,000
Revenue Bonds [Member] \| Gulf Opportunity Zone Revenue Bonds Series 2010 due 2040 [Member]
Debt Purchased and Retired
Interest rate of notes (percent)			4.00%
Public Debt (Textual)
Repayments of long-term debt			$ 300,000,000