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Debt and Finance Lease Obligations, Public Debt (Details) - USD ($) | 1 Months Ended | 2 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 30, 2022 | Jun. 30, 2022 | Feb. 28, 2022 | Nov. 30, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Apr. 30, 2020
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on early retirement of debt |  |  |  |  |  |  |  |  |  | $ 14,000,000 | $ (193,000,000) | $ 0 |
Premiums paid |  |  |  |  |  |  |  |  |  | $ 56,000,000 | $ 179,000,000 | $ 0 |
Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Debt purchased and retired or redeemed amount | $ 1,250,000,000 |  | $ 1,400,000,000 |  |  |  | $ 442,000,000 | $ 2,143,000,000 |  |  |  |  |
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of senior long-term debt |  |  |  | $ 1,446,000,000 |  |  |  |  | $ 4,020,000,000.00 |  |  |  |
Gain (loss) on early retirement of debt |  |  |  |  |  |  |  | (193,000,000) |  |  |  |  |
Premiums paid |  |  |  |  |  |  |  | 179,000,000 |  |  |  |  |
Write-off of unamortized debt discounts and deferred debt costs |  |  |  |  |  |  |  | 10,000,000 |  |  |  |  |
Bank fees |  |  |  |  |  |  |  | $ 4,000,000 |  |  |  |  |
Senior Notes [Member] | 2.150% Valero Senior Notes Due September 15, 2027 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  |  |  | 2.15% | 2.15% |  | 2.15% | 2.15% |  |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  | $ 22,000,000 |  |  |  |  |  |
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of long-term debt issuance |  |  |  |  |  | $ 600,000,000 |  |  | $ 600,000,000 |  |  |  |
Senior Notes [Member] | 4.500% VLP Senior Notes Due March 15, 2028 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  |  |  |  | 4.50% |  |  | 4.50% |  |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  | $ 26,000,000 |  |  |  |  |  |
Senior Notes [Member] | 2.800% Valero Senior Notes Due in 2031 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  | 2.80% |  |  | 2.80% |  |  | 2.80% |  |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  | $ 28,000,000 |  |  |  |  |  |
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of long-term debt issuance |  |  |  | $ 500,000,000 |  |  |  |  |  |  |  |  |
Senior Notes [Member] | 6.625% Valero Senior Notes Due in 2037 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  |  |  |  | 6.625% |  |  | 6.625% |  |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  | $ 58,000,000 |  |  |  |  |  |
Senior Notes [Member] | 4.90% Valero Senior Notes Due in 2045 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  |  |  |  | 4.90% |  |  | 4.90% |  |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  | $ 24,000,000 |  |  |  |  |  |
Senior Notes [Member] | 3.650% Valero Senior Notes Due in 2051 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  | 3.65% |  |  | 3.65% |  |  | 3.65% |  |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  | $ 95,000,000 |  |  |  |  |  |
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of long-term debt issuance |  |  |  | $ 950,000,000 |  |  |  |  |  |  |  |  |
Senior Notes [Member] | 4.000% Valero Senior Notes Due in 2052 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  | 4.00% |  |  |  | 4.00% |  |  | 4.00% |  |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  | $ 97,000,000 |  |  |  |  |  |
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] | 7.45% Valero Senior Notes Due in 2097 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  |  |  |  | 7.45% |  |  | 7.45% |  |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  | $ 30,000,000 |  |  |  |  |  |
Senior Notes [Member] | Various Other Valero Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  | $ 62,000,000 |  |  |  |  |  |
Senior Notes [Member] | 3.65% Valero Senior Notes Due in 2025 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) | 3.65% |  | 3.65% |  |  |  | 3.65% | 3.65% |  | 3.65% | 3.65% |  |
Debt purchased and retired or redeemed amount | $ 48,000,000 |  | $ 72,000,000 |  |  |  |  | $ 276,000,000 |  |  |  |  |
Senior Notes [Member] | 2.850% Valero Senior Notes Due in 2025 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) | 2.85% |  | 2.85% |  |  |  | 2.85% |  |  | 2.85% |  |  |
Debt purchased and retired or redeemed amount | $ 291,000,000 |  | $ 507,000,000 |  |  |  |  |  |  |  |  |  |
Senior Notes [Member] | 4.375% VLP Senior Notes Due in 2026 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) | 4.375% |  | 4.375% |  |  |  | 4.375% | 4.375% |  | 4.375% | 4.375% |  |
Debt purchased and retired or redeemed amount | $ 62,000,000 |  | $ 168,000,000 |  |  |  |  | $ 124,000,000 |  |  |  |  |
Senior Notes [Member] | 3.400% Valero Senior Notes Due in 2026 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) | 3.40% |  | 3.40% |  |  |  | 3.40% |  |  | 3.40% |  |  |
Debt purchased and retired or redeemed amount | $ 166,000,000 |  | $ 653,000,000 |  |  |  |  |  |  |  |  |  |
Senior Notes [Member] | 4.350% Valero Senior Notes Due in 2028 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) | 4.35% |  |  |  |  |  | 4.35% |  |  | 4.35% |  |  |
Debt purchased and retired or redeemed amount | $ 131,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Member] | 4.000% Valero Senior Notes Due in 2029 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) | 4.00% |  |  |  |  |  | 4.00% |  |  | 4.00% |  |  |
Debt purchased and retired or redeemed amount | $ 552,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Member] | 2.700% Valero Senior Notes Due in 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  |  |  |  |  | 2.70% |  |  | 2.70% |  | 2.70%
Debt purchased and retired or redeemed amount |  |  |  |  |  |  |  | $ 850,000,000 |  |  |  |  |
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of long-term debt issuance |  |  |  |  |  |  |  |  |  |  |  |  | $ 850,000,000
Senior Notes [Member] | 1.200% Valero Senior Notes Due in 2024 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  |  |  | 1.20% | 1.20% | 1.20% | 1.20% | 1.20% | 1.20% |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  |  | $ 756,000,000 |  |  |  |  |
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of long-term debt issuance |  |  |  |  |  | $ 925,000,000 |  |  | $ 925,000,000 |  |  |  |
Senior Notes [Member] | 10.500% Valero Senior Notes Due in 2039 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  |  |  |  | 10.50% | 10.50% |  | 10.50% | 10.50% |  |
Debt purchased and retired or redeemed amount |  |  |  |  |  |  |  | $ 137,000,000 |  |  |  |  |
Senior Notes [Member] | Floating Rate Senior Notes Due September 15, 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Debt purchased and retired or redeemed amount |  |  |  |  | $ 575,000,000 |  |  |  |  |  |  |  |
Senior Notes [Member] | Floating Rate Senior Notes Due September 15, 2023 [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  | 1.15% |  |  |  |  |  |  |
Senior Notes [Member] | 2.850% Valero Senior Notes Due April 15, 2025, Issued September 2020 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  |  |  | 2.85% |  |  | 2.85% |  |  |  |
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of long-term debt issuance |  |  |  |  |  | $ 400,000,000 |  |  | $ 400,000,000 |  |  |  |
Senior Notes [Member] | 2.850% Valero Senior Notes Due April 15, 2025, Issued April 2020 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  |  |  |  |  |  |  |  |  |  |  |  | 2.85%
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of long-term debt issuance |  |  |  |  |  |  |  |  |  |  |  |  | $ 650,000,000
Revenue Bonds [Member] | Gulf Opportunity Zone Revenue Bonds, Series 2010, 4.00% Due in 2040 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Purchased and Retired or Redeemed |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate of notes (percent) |  | 4.00% |  |  |  |  | 4.00% |  |  | 4.00% |  |  |
Public Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  | $ 300,000,000 |  |  |  |  |  |  |  |  |  |  |

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