Money Market Funds [Member] Money Market Account [Member] Money Market/Cash and Cash Equivalents [Member] Subsequent Event Type [Axis] Subsequent Event Type [Domain Fair Value Inputs Level1 [Member] Fair Value, Inputs, Level 1 [Member] Fair Value Inputs Level 2 [Member] Fair Value Inputs Level 3 [Member] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Axis] Investment Type Categorization [Member] Investments [Domain] Subsequent Event [Member] Investment Type [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Mutual Fund [Member] Mutual Funds [Member] Registered Investment Companies [Member] Retirement Plan Tax Status [Axis] Retirement Plan Tax Status [Domain] Qualified Plan [Member] Fair Value Measured At Net Asset Value Per Share [Member] Assets Measured At NAV [Member] Defined Benefit Plan Common Collective Trust [Member] Common Collective Trust Funds [Member] Investment Issuer Name [Axis] Investment Issuer Name [Domain] Investment, Identifier [Axis] Document And Entity Information [Abstract] Document Information [Table] Document Information [Line Items] Document Type Amendment Flag Document Period End Date Legal Entity [Axis] Entity [Domain] Entity Registrant Name Entity Central Index Key Entity Tax Identification Number EIN Employee Benefit Plan, Schedule of Asset Held for Investment [Table Text Block] Schedule of Assets Employee Benefit Plan Participant Directed Status [Domain] Employee Benefit Plan, Schedule of Delinquent Participant Contribution [Table Text Block] Schedule of Delinquent Participant Contributions Employee Benefit Plan Investment Excluding Plan Interest In Master Trust Cost Cost Employee Benefit Plan, Payment to Participant [Policy Text Block] Payment of Benefits Employee Benefit Plan, Plan Termination [Text Block] Plan Termination Employee Benefit Plan, Net Asset Available for Benefit Net assets available for benefits, end of year Net assets available for benefits, beginning of year Net assets available for benefits Employee Benefit Plan Asset Held For Investment Investment Excluding Plan Interest In Master Trust Participation Status Extensible Enumeration Employee Benefit Plan, Change in Net Asset Available for Benefit, Decrease Total deductions Employee Benefit Plan Tax Determination Letter Obtained Employee Benefit Plan, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Participants' contributions Employee Benefit Plan, Note Receivable from Participant [Policy Text Block] Notes Receivable from Participants Employee Benefit Plan Asset Held For Investment Party In Interest Employee Benefit Plan, Schedule of Asset Held for Investment [Table] Employee Benefit Plan, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Net appreciation (depreciation) in fair value of investments Employee Benefit Plan, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Interest income - notes receivable from participants Employee Benefit Plan, Note Receivable from Participant Notes receivable from participants Employee Benefit Plan Tax Determination Letter Date Employee Benefit Plan Asset Held For Investment Participant Loan After Deemed Distribution Participant Loans Employee Benefit Plan, Description of Plan [Text Block] Description of Plan Employee Benefit Plan, Change in Net Asset Available for Benefit, Increase Total additions Employee Benefit Plan, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Benefits paid to participants Employee Benefit Plan Employer Common Stock [Member] Common Stock [Member] Henry Schein, Inc. Common Stock [Member] Employee Benefit Plan Tax Qualification Status Extensible Enumeration Employee Benefit Plan, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Total investment income, net Net appreciation (depreciation) in fair value of investments Employee Benefit Plan, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash Employer's contribution (Note 1(b)) Employee Benefit Plan, Tax Status [Text Block] Tax Status Employee Benefit Plan Participant Directed Status [Axis] Employee Benefit Plan, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Current Value Employee Benefit Plan, Forfeited Nonvested Account Forfeited nonvested account Employee Benefit Plan, Schedule of Asset Held for Investment [Line Items] Employee Benefit Plan, Note Receivable from Participant, Allowance for Credit Loss Note receivable from participant, allowance for credit loss EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Net increase in plan assets Employee Benefit Plan, Forfeited Nonvested Account, Decrease from Employer Contribution Forfeited nonvested account, decrease from employer contribution Employee Benefit Plan Participant Directed [Member] Employee Benefit Plan, Asset Held for Investment, Participant Loan, Interest Rate Interest rate Employee Benefit Plan, Change in Net Asset Available for Benefit, Decrease [Abstract] Deductions: Employee Benefit Plan, Change in Net Asset Available for Benefit, Increase [Abstract] Additions: Employee Benefit Plan, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment Interest and dividends Employee Benefit Plan, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investment income: Employee Benefit Plan Change In Net Asset Available For Benefit Increase Decrease For Gain Loss On Investment [Abstract] Net appreciation (depreciation) in fair value of investments: Employee Benefit Plan, Investment, Excluding Plan Interest in Master Trust, Fair Value Investments, at fair value Fair Value Employee Benefit Plan Investment Fair Value [Abstract] Investments, at fair value (Note 4): Employee Benefit Plan, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Administrative expenses Tax Status [Abstract] Employee Benefit Plan, Receivable Total Receivables Employee Benefit Plan, Receivable [Abstract] Receivables: Employee Benefit Plan, Description of Plan [Table] Employee Benefit Plan, Description of Plan [Line Items] Employee Benefit Plan, Accounting Policy [Table] Employee Benefit Plan, Accounting Policy [Line Items] Employee Benefit Plan, Tax Status [Table] Employee Benefit Plan, Tax Status [Line Items] Employee Benefit Plan, Schedule of Delinquent Participant Contribution [Table] Employee Benefit Plan, Schedule of Delinquent Participant Contribution [Line Items] Employee Benefit Plan, Schedule of Delinquent Participant Contribution [Abstract] Schedule of Assets [Abstract] Description of Plan [Abstract] Employee Benefit Plan Plan Number Statements of Changes in Net Assets Available for Benefits [Abstract] Employee Benefit Plan, Statement of Change in Net Asset Available for Benefit [Line Items] Employee Benefit Plan, Statement of Change in Net Asset Available for Benefit [Table] Statements of Net Assets Available for Benefits [Abstract] Employee Benefit Plan, Statement of Net Asset Available for Benefit [Line Items] Employee Benefit Plan, Statement of Net Asset Available for Benefit [Table] Employee Benefit Plan Investment Type Extensible Enumeration Employee Benefit Plan, Use of Estimate [Policy Text Block] Use of Estimates EBP, Subsequent Event [Text Block] Subsequent Events Employee Benefit Plan, Employer Contribution, Matching Percentage Employer contribution, matching percentage Employee Benefit Plan, Liability Benefits payable Employee Benefit Plan Participant Contribution Automatic Deferral Rate Deferral rate of eligible employee enrolled in plan Employee Benefit Plan, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage Percentage participants may elect to contribute to the Plan Employee Benefit Plan, Note Receivable From Participant Account Minimum Borrowing Amount Note receivable from participant, account, minimum borrowing, amount Employee Benefit Plan, Note Receivable from Participant, Account, Maximum Borrowing, Amount Note receivable from participant, account, maximum borrowing, amount Employee Benefit Plan Investment Issuer Name Extensible Enumeration Employee Benefit Plan, Employer Contribution Receivable Employer's contribution (Note 1(b)) Employee Benefit Plan, Investment [Policy Text Block] Investment Valuation and Income Recognition Employee Benefit Plan, Summary of Accounting Policy [Text Block] Summary of Significant Accounting Policies Employee Benefit Plan, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Note receivable from participant, account, maximum borrowing, to total account, percentage Employee Benefit Plan, Employer Contribution, Participant Compensation Matched, Percentage Employer contribution, participant compensation matched, percentage Employee Benefit Plan, Participant Contribution, Pretax, Maximum Annual Compensation, Amount Maximum amount of allowable contributions Employee Benefit Plan, Asset Total Assets Party-in-Interest and Related Party Transactions [Abstract] Employee Benefit Plan, Asset [Abstract] Assets Employee Benefit Plan, Liability [Abstract] Liabilities Summary of Significant Accounting Policies [Abstract] Employee Benefit Plan, Related Party and Party-in-Interest Transactions [Text Block] Party-in-Interest and Related Party Transactions Employee Benefit Plan Other Receivable Other Employee Benefit Plan, Investment, Fair Value and NAV [Line Items] Employee Benefit Plan, Investment, Fair Value and NAV [Table] Employee Benefit Plan, Investment, Fair Value and NAV [Table Text Block] Investments Measured and Recognized at Fair Value and Additional Disclosures for NAV Employee Benefit Plan, Basis of Accounting [Policy Text Block] Basis of Accounting Employee Benefit Plan Change In Net Asset Available For Benefit Transfer To From External Plan Transfer in from (out to) a related plan (Note 1(a)) Employee Benefit Plan, Investment, Fair Value and NAV [Text Block] Fair Value Measurements Fair Value Measurements [Abstract] Employee Benefit Plan, Related Party and Party-in-Interest Transactions [Line Items] Employee Benefit Plan, Related Party and Party-in-Interest Transactions [Table] Ebp Risk And Uncertainty [Policy Text Block] Risk and Uncertainties Ebp Fair Value Investment Nav Redemption Notice Period Redemption Notice Period EBP, Subsequent Event [Table] EBP, Subsequent Event [Line Items] Ebp Risk And Uncertainty Concentration Of Investment At Fair Value To Net Assets Percentage Concentration of investment at fair value to net assets Subsequent Events [Abstract] Scenario Unspecified [Domain] Statement Scenario [Axis] Statistical Measurement [Axis] Range [Member] Range [Domain] Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Employee Benefit Plan, Plan Termination [Abstract] Plan Termination [Abstract] Employee Benefit Plan, Vesting Schedule [Table Text Block] Employee Benefit Plan, Vesting Schedule [Table Text Block] Vesting Schedule Employee Benefit Plan, Vesting Percentage Employee Benefit Plan, Vesting Percentage Vesting percentage Employee Benefit Plan, Years Of Service Employee Benefit Plan, Years Of Service Years of service 2 But Less Than 3 [Member] Two But Less Than Three [Member] 2 But Less Than 3 [Member] 3 But Less Than 4 [Member] Three But Less Than Four [Member] 3 But Less Than 4 [Member] 4 But Less Than 5 [Member] Four But Less Than Five [Member] 4 But Less Than 5 [Member] 5 Or More [Member] Five Or More [Member] 5 or More [Member] Employee Benefit Plan, Vesting Percentage In Event Of Plan Termination Employee Benefit Plan, Vesting Percentage In Event Of Plan Termination Vesting percentage in event of plan termination EBP 003 [Member] EBP 003 [Member] Defined Benefit Plan Common Collective Trust and Mutual Fund [Member] Common Collective Trust Funds and Mutual Funds [Member] EBP, Risk and Uncertainty, Concentration of Investment at Fair Value to Net Assets, Number of Investments Number of investments used to calculate concentration of investment at fair value to net assets Number of investments used to calculate concentration of investment at fair value to net assets. Employee Benefit Plan, Other Than Temporary Employees Required Service Period, Eligible To Participate In Deferral Contributions Required service period after which other than temporary employees are eligible to participate in deferral contributions. Required service period, other than temporary employees eligible to participate in deferral contributions Employee Benefit Plan, Temporary Employees Required Service Period, Eligible To Participate In Deferral Contributions Required service period after which temporary employees are eligible to participate in deferral contributions. Required service period, temporary employees eligible to participate in deferral contributions Employee Benefit Plan, Participant Contribution Age For Catch-Up Contributions Employee Benefit Plan Participant Contribution Age For Catch-Up Contributions Age for catch-up contributions Employee Benefit Plan, Participant Contribution Pre-tax Maximum Annual Catch-Up Compensation Amount Employee Benefit Plan, Participant Contribution Pre-tax Maximum Annual Catch-Up Compensation Amount Catch-up compensation amount Employee Benefit Plan Plan Investment Options By Type Number Employee Benefit Plan Plan Investment Options By Type Number Number of investment options EBP, Note Receivable from Participant, Account, Number of Loans Allowed per Calendar Year EBP, Note Receivable from Participant, Account, Number of Loans Allowed per Calendar Year Number of loans allowed per calendar year EBP, Note Receivable from Participant, Account, Maximum Number of Loans Allowed to be Outstanding at any Time EBP, Note Receivable from Participant, Account, Maximum Number of Loans Allowed to be Outstanding at any Time Maximum number of loans allowed to be outstanding at any time EBP, Note Receivable From Participant Account Loan Term EBP, Note Receivable From Participant Account Loan Term Note receivable from participant, account, loan term EBP, Note Receivable From Participant Account Loan Term if Purchasing Primary Residence EBP, Note Receivable From Participant Account Loan Term if Purchasing Primary Residence Note receivable from participant, account, loan term if purchasing primary residence EBP, Administrative Fee Expense, For Each Participant in the Plan EBP, Administrative Fee Expense, For Each Participant in the Plan Administrative fee for each participant in the Plan Henry Schein, Inc. Common Stock [Member] Henry Schein, Inc. Common Stock Fund [Member] EBP Participant Minimum Age Required for High-Wage-Earner EBP Participant Minimum Age Required for High-Wage-Earner High-wage-earner, minimum age required EBP Participant Minimum Wages Required for High-Wage-Earner EBP Participant Minimum Wages Required for High-Wage-Earner High-wage-earner, minimum wages required EBP Participant, Meeting Wage Threshold, No Longer Permitted to Make Pre-Tax Catch-up Contributions, Minimum Age Required EBP Participant, Meeting Wage Threshold, No Longer Permitted to Make Pre-Tax Catch-up Contributions, Minimum Age Required Meeting wage threshold, no longer permitted to make pre-tax catch-up contributions, minimum age required Registered Investment Companies [Member] Less Than 2 Years [Member] Less Than 2 [Member] Participants Age 50 Or Over [Member] Participants Age 60 Through 63 [Member] Fidelity Investments [Member] Henry Schein, Inc. [Member] Spartan [Member] State Street [Member] William Blair [Member] T. Rowe Price [Member] Prudential [Member] MFS [Member] BlackRock [Member] American Funds [Member] Dodge & Cox [Member] Employee Benefit Plan, Change in Net Asset Available for Benefit, Increase (Decrease) After Transfer to (from) Plan Net increase in plan assets Amount of increase (decrease) in net asset available for benefit to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) after transfer in from (out to) a related plan. Temporary Employee Completes 12 Consecutive Months of Service And 1000 hours of Service [Member] Temporary Employee Completes Three Consecutive Years of Service And 500 hours of Service [Member] Employee Benefit Plan Temporary Employees Required Service Hours Eligible To Participate In Deferral Contributions Required service hours after which temporary employees are eligible to participate in deferral contributions. Required service hours after which temporary employees are eligible to participate in deferral contributions Employee Benefit Plan, Employer Discretionary Contribution, Amount Discretionary contributions Employee Benefit Plan, Employer Discretionary Contribution, Amount Employee Benefit Plan, Participant Election, Percentage of Balances to Employer Common Stock Fund Percentage of participant election to direct up to the employer common stock fund. Percentage of participant election to direct up to the employer common stock fund