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Debt and Finance Lease Obligations, Public Debt (Details) - USD ($)		1 Months Ended					2 Months Ended
	Feb. 07, 2025	Mar. 31, 2024	Feb. 28, 2023	Sep. 30, 2022	Jun. 30, 2022	Feb. 28, 2022	Dec. 31, 2022	Dec. 31, 2024
Senior Notes [Member]
Debt Purchased and Retired or Redeemed
Debt purchased and retired amount			$ 199,000,000	$ 1,250,000,000		$ 1,400,000,000	$ 442,000,000
Senior Notes [Member] | 1.200% Valero Senior Notes Due 2024 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)		1.20%						1.20%
Public Debt (Textual)
Repayments of senior debt		$ 167,000,000
Interest rate of notes (percent)		1.20%						1.20%
Senior Notes [Member] | 6.625% Valero Senior Notes Due 2037 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)			6.625%				6.625%	6.625%
Debt purchased and retired amount			$ 62,000,000				$ 58,000,000
Public Debt (Textual)
Interest rate of notes (percent)			6.625%				6.625%	6.625%
Senior Notes [Member] | 3.650% Valero Senior Notes Due 2051 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)			3.65%				3.65%	3.65%
Debt purchased and retired amount			$ 26,000,000				$ 95,000,000
Public Debt (Textual)
Interest rate of notes (percent)			3.65%				3.65%	3.65%
Senior Notes [Member] | 4.000% Valero Senior Notes Due 2052 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)			4.00%			4.00%	4.00%	4.00%
Debt purchased and retired amount			$ 45,000,000				$ 97,000,000
Public Debt (Textual)
Interest rate of notes (percent)			4.00%			4.00%	4.00%	4.00%
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 VLP Senior Notes [Member]
Debt Purchased and Retired or Redeemed
Debt purchased and retired amount			$ 66,000,000
Senior Notes [Member] | 2.150% Valero Senior Notes Due 2027 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)							2.15%	2.15%
Debt purchased and retired amount							$ 22,000,000
Public Debt (Textual)
Interest rate of notes (percent)							2.15%	2.15%
Senior Notes [Member] | 4.500% VLP Senior Notes Due 2028 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)							4.50%	4.50%
Debt purchased and retired amount							$ 26,000,000
Public Debt (Textual)
Interest rate of notes (percent)							4.50%	4.50%
Senior Notes [Member] | 2.800% Valero Senior Notes Due 2031 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)							2.80%	2.80%
Debt purchased and retired amount							$ 28,000,000
Public Debt (Textual)
Interest rate of notes (percent)							2.80%	2.80%
Senior Notes [Member] | 4.90% Valero Senior Notes Due 2045 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)							4.90%	4.90%
Debt purchased and retired amount							$ 24,000,000
Public Debt (Textual)
Interest rate of notes (percent)							4.90%	4.90%
Senior Notes [Member] | 7.45% Valero Senior Notes Due 2097 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)							7.45%	7.45%
Debt purchased and retired amount							$ 30,000,000
Public Debt (Textual)
Interest rate of notes (percent)							7.45%	7.45%
Senior Notes [Member] | Various Other Valero Senior Notes [Member]
Debt Purchased and Retired or Redeemed
Debt purchased and retired amount							$ 62,000,000
Senior Notes [Member] | 3.65% Valero Senior Notes Due 2025 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)				3.65%		3.65%		3.65%
Debt purchased and retired amount				$ 48,000,000		$ 72,000,000
Public Debt (Textual)
Interest rate of notes (percent)				3.65%		3.65%		3.65%
Senior Notes [Member] | 2.850% Valero Senior Notes Due 2025 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)				2.85%		2.85%		2.85%
Debt purchased and retired amount				$ 291,000,000		$ 507,000,000
Public Debt (Textual)
Interest rate of notes (percent)				2.85%		2.85%		2.85%
Senior Notes [Member] | 4.375% VLP Senior Notes Due 2026 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)				4.375%		4.375%		4.375%
Debt purchased and retired amount				$ 62,000,000		$ 168,000,000
Public Debt (Textual)
Interest rate of notes (percent)				4.375%		4.375%		4.375%
Senior Notes [Member] | 3.400% Valero Senior Notes Due 2026 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)				3.40%		3.40%		3.40%
Debt purchased and retired amount				$ 166,000,000		$ 653,000,000
Public Debt (Textual)
Interest rate of notes (percent)				3.40%		3.40%		3.40%
Senior Notes [Member] | 4.350% Valero Senior Notes Due 2028 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)				4.35%				4.35%
Debt purchased and retired amount				$ 131,000,000
Public Debt (Textual)
Interest rate of notes (percent)				4.35%				4.35%
Senior Notes [Member] | 4.000% Valero Senior Notes Due 2029 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)				4.00%				4.00%
Debt purchased and retired amount				$ 552,000,000
Public Debt (Textual)
Interest rate of notes (percent)				4.00%				4.00%
Senior Notes [Member] | 5.150% Valero Senior Notes Due In 2030 [Member] | Subsequent Event [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)	5.15%
Public Debt (Textual)
Interest rate of notes (percent)	5.15%
Face amount of long-term debt issuance	$ 650,000,000
Proceeds from issuance of senior long-term debt	$ 649,000,000
Revenue Bonds [Member] | Gulf Opportunity Zone Revenue Bonds Series 2010 Due 2040 [Member]
Debt Purchased and Retired or Redeemed
Interest rate of notes (percent)					4.00%
Public Debt (Textual)
Interest rate of notes (percent)					4.00%
Repayments of long-term debt					$ 300,000,000

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