XML 103 R89.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Income Taxes, Tax Credits and Loss Carryforwards (Details) $ in Millions | Dec. 31, 2023 USD ($)
--- | ---
U.S. State [Member] | Operating Loss Carryforwards, Limited [Member] |
Operating Loss Carryforwards |
Income tax NOLs | $ 12,164
U.S. State [Member] | Tax Credits, Limited [Member] |
Operating Loss Carryforwards |
Income tax credits | 76
U.S. State [Member] | Tax Credits, Unlimited [Member] |
Operating Loss Carryforwards |
Income tax credits | 2
Foreign [Member] | Operating Loss Carryforwards, Unlimited [Member] |
Operating Loss Carryforwards |
Income tax NOLs | 329
Foreign [Member] | Tax Credits, Limited [Member] |
Operating Loss Carryforwards |
Income tax credits | $ 748

X
- References No definition available. + Details
Name: | us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsComponentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-3 + Details
Name: | us-gaap_OperatingLossCarryforwards
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-3 + Details
Name: | us-gaap_TaxCreditCarryforwardAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=vlo_OperatingLossCarryforwardsLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxCreditCarryforwardAxis=vlo_TaxCreditsLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxCreditCarryforwardAxis=vlo_TaxCreditsUnlimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_ForeignCountryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=vlo_OperatingLossCarryforwardsUnlimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |