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Debt, Public Debt (Details) - Senior Notes [Member] - USD ($) $ in Millions | 1 Months Ended
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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

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