Statistical Measurement [Domain] Statistical Measurement [Domain] RELATED-PARTY AND PARTY-IN-INTEREST TRANSACTIONS EBP, Related Party and Party-in-Interest Transactions [Text Block] Interest income on notes receivable from participants Interest income on notes receivable from participants per the financial statements EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Document Information [Line Items] Document Information [Line Items] General loan, maximum borrowing term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term Maximum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Participant contributions EBP, Participant Contribution, Receivable Port Arthur Refinery [Member] EBP, Port Arthur Refinery [Member] EBP, Port Arthur Refinery Subsequent Events EBP, Subsequent Event [Policy Text Block] Contributions EBP, Contribution [Policy Text Block] EBP, Description of Plan and Accounting Change [Abstract] Involuntary cash-out limit EBP, Involuntary Cash-Out Limit EBP, Involuntary Cash-Out Limit Retirement age EBP, Retirement Age EBP, Retirement Age Rollover contributions EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Investment Type [Axis] Investment Type [Axis] Maximum borrowing to total account, percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Rollover or Roth rollover account withdrawal, percentage EBP, Withdrawal, Rollover or Roth Rollover Account, Percentage EBP, Withdrawal, Rollover or Roth Rollover Account, Percentage TAX STATUS EBP, Tax Status [Text Block] EBP 010 [Member] EBP 010 [Member] EBP 010 EBP, Description of the Plan [Line Items] EBP, Plan Termination [Line Items] EBP, Description of Plan [Line Items] EBP, Schedule H, line 4i- Schedule of Assets (Held at End of Year) [Table] EBP, Schedule of Asset Held for Investment [Table] Participant loans EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Per the Form 5500 EBP, Form 5500 Caption, Net Assets FAIR VALUE MEASUREMENTS EBP, Investment, Fair Value and NAV [Text Block] EBP, Fair Value Measurements [Table] EBP, Investment, Fair Value and NAV [Table] Terminated deemed distributions of participant loans EBP, Reconciliation to Form 5500, Payment to Participant, Prior Period, Decrease from Deemed Distribution Participant contribution, percent of eligible compensation, maximum EBP, Participant Contribution, Maximum Annual Compensation to Total Compensation, Percentage EBP, Participant Contribution, Maximum Annual Compensation to Total Compensation, Percentage Plan Expenses EBP, Expense [Policy Text Block] Total contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution Location [Domain] Location [Domain] Money Market Security [Member] Money Market Funds [Member] EBP, Related-Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Benefit payments Benefit payments per the financial statements EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Employer contributions EBP, Employer Contribution, Receivable Deemed distributions of participant loans EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Current Period, Decrease from Deemed Distribution Payment of Benefits EBP, Payment to Participant [Policy Text Block] Employer contribution, vesting percentage EBP, Employer Contribution, Vesting Percentage EBP, Employer Contribution, Vesting Percentage Net assets available for benefits Net assets available for benefits, beginning of year Net assets available for benefits, end of year Per the financial statements EBP, Net Asset Available for Benefit EBP, Reconciliation of Financial Statements to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Schedule H, line 4i-Schedule of Assets (Held at End of Year) [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Basis of Presentation and Summary of Significant Accounting Policies [Line Items] EBP, Accounting Policy [Line Items] Total assets EBP, Asset Reconciliation of Financial Statements to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] After-tax contribution account withdrawal, percentage EBP, Withdrawal, After-tax Contribution Account, Percentage EBP, Withdrawal, After-tax Contribution Account, Percentage Deemed distributions of participant loans EBP, Reconciliation to Form 5500, Note Receivable, Deemed Distribution EBP, Reconciliation of Financial Statements to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] Benefit payments per the Form 5500 EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits Valero Common Stock [Member] EBP, Employer, Common Stock [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Tax Status [Abstract] Net increase in net assets available for benefits EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Cover [Abstract] Participant and employer contribution, investment, percent of aggregate value in Valero common stock, threshold EBP, Participant and Employer Contribution, Investment Percentage, Percent of Aggregate Transfer Value, Threshold EBP, Participant and Employer Contribution, Investment Percentage, Percent of Aggregate Transfer Value, Threshold Maximum [Member] Maximum [Member] Employer EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Assets EBP, Asset [Abstract] Per the Form 5500 EBP, Form 5500 Caption, Participant Loans Participant contribution, pre-tax contribution, percent of eligible compensation, maximum EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage Minimum [Member] Minimum [Member] EBP, Schedule of Asset Held for Investment [Abstract] Dividend income Valero common stock dividend income EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment Employer contribution, vesting service period EBP, Employer Contribution, Vesting Service Period EBP, Employer Contribution, Vesting Service Period RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Entity [Domain] Entity [Domain] Total current value EBP, Asset Held for Investment Investment, Identifier [Axis] Investment, Identifier [Axis] Participant and employer contribution, investment direction percentage EBP, Participant and Employer Contribution, Investment Percentage EBP, Participant and Employer Contribution, Investment Percentage Vested matching contribution account withdrawal, percentage EBP, Withdrawal, Vested Matching Contribution Account, Percentage EBP, Withdrawal, Vested Matching Contribution Account, Percentage EBP, Investment, Fair Value and NAV [Abstract] Participant contribution, after-tax contribution, percent of eligible compensation, maximum EBP, Participant Contribution, After Tax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Participant Contribution, After Tax, Maximum Annual Compensation to Total Compensation, Percentage Employer contribution, matching percentage EBP, Employer Contribution, Matching Percentage Basis of Presentation EBP, Basis of Accounting [Policy Text Block] Participant contribution, vesting percentage EBP, Participant Contribution, Vesting Percentage EBP, Participant Contribution, Vesting Percentage Risks and Uncertainties EBP, Risk and Uncertainty [Policy Text Block] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Mutual Funds [Member] Total Mutual Funds [Member] Mutual Fund [Member] EBP, Description of the Plan [Table] EBP, Plan Termination [Table] EBP, Description of Plan [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Valuation of Investments and Income Recognition EBP, Investment [Policy Text Block] Amendment flag Amendment Flag Valero common stock share price (in dollars per share) EBP, Share Price EBP, Share Price Common/Collective Trust [Member] Common Collective Trust [Member] Schedule of Investments at Fair Value EBP, Investment, Fair Value and NAV [Table Text Block] Current value EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value PLAN TERMINATION EBP, Plan Termination [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Employer contribution, annual vesting percentage EBP, Employer Contribution, Annual Vesting Percentage EBP, Employer Contribution, Annual Vesting Percentage EBP, Related Party and Party-in-Interest Transactions [Abstract] Forfeited nonvested account EBP, Forfeited Nonvested Account EBP, Related-Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Primary residence, maximum borrowing term EBP, Note Receivable From Participant, Account, Principal Residence, Maximum Borrowing Term EBP, Note Receivable From Participant, Account, Principal Residence, Maximum Borrowing Term Forfeited nonvested account, decrease from employer contribution EBP, Forfeited Nonvested Account, Decrease from Employer Contribution EBP, Statement of Net Asset Available for Benefit [Abstract] Deemed distributions of participant loans EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Deemed Distribution DESCRIPTION OF THE PLAN EBP, Description of Plan [Text Block] Percentage of Valero common stock to total investments at fair value EBP, Risk and Uncertainty, Concentration of Investment at Fair Value to Total Investments, Percentage BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES EBP, Summary of Accounting Policy [Text Block] Notes Receivable from Participants EBP, Form 5500 Caption, Participant Loans [Abstract] Participant EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution Notes Receivable from Participants EBP, Note Receivable from Participant [Policy Text Block] Total additions EBP, Change in Net Asset Available for Benefit, Increase EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Entity central index key Entity Central Index Key Participant loans, interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate Investments at fair value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Legal Entity [Axis] Legal Entity [Axis] Entity tax identification number Entity Tax Identification Number Total investment income Investment income per the financial statements EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Participant contribution, pre-tax contribution, percent of eligible compensation, minimum EBP, Participant Contribution, Pretax, Minimum Annual Compensation to Total Compensation, Percentage EBP, Participant Contribution, Pretax, Minimum Annual Compensation to Total Compensation, Percentage EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Plan number EBP, Plan Number Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Entity by Location [Axis] Entity by Location [Axis] Document type Document Type EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Fair Value Measurements [Line Items] EBP, Investment, Fair Value and NAV [Line Items] Net Assets Available for Benefits EBP, Form 5500 Caption, Net Assets [Abstract] Use of Estimates EBP, Use of Estimate [Policy Text Block] Investment Income EBP, Form 5500 Caption, Net Income (Loss) [Abstract] Benefit Payments EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] Deductions: EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Notes receivable from participants Per the financial statements EBP, Note Receivable from Participant Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Deemed Distributions EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Increase (Decrease) from Deemed Distribution [Abstract] SCHEDULE H, LINE 4I-SCHEDULE OF ASSETS (HELD AT END OF YEAR) EBP, Schedule of Asset Held for Investment [Table Text Block] Pre-tax contribution or designated roth contribution account withdrawal, percentage EBP, Withdrawal, Pre-tax Contribution or Designated Roth Contribution Account, Percentage EBP, Withdrawal, Pre-tax Contribution or Designated Roth Contribution Account, Percentage Additions: EBP, Change in Net Asset Available for Benefit, Increase [Abstract] Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Basis spread on variable rate EBP, Participant Loan, Basis Spread On Variable Rate EBP, Participant Loan, Basis Spread On Variable Rate Deemed distributions of participant loans per the Form 5500 EBP, Form 5500 Caption, Certain Deemed Distributions of Participant Loans EBP, Basis of Presentation and Summary of Significant Accounting Policies [Table] EBP, Accounting Policy [Table] Investments [Domain] Investments [Domain] Document Information [Table] Document Information [Table] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Investment income per the Form 5500 EBP, Form 5500 Caption, Investment Income EBP, Form 5500 Caption, Investment Income Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Entity registrant name Entity Registrant Name Investment income: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Maximum borrowing, highest outstanding balance period EBP, Note Receivable from Participant, Account, Maximum Borrowing, Highest Outstanding Balance Period EBP, Note Receivable from Participant, Account, Maximum Borrowing, Highest Outstanding Balance Period Requisite service period EBP, Requisite Service Period EBP, Requisite Service Period EBP, Tax Status [Table] EBP, Tax Status [Table] Receivables: EBP, Receivable [Abstract] Total receivables EBP, Receivable Employer contribution, percentage of participant compensation matched EBP, Employer Contribution, Participant Compensation Matched, Percentage