Participant rollovers EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Maximum Maximum [Member] Legal Entity [Axis] Legal Entity [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Mutual Funds Mutual Fund [Member] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Maximum contribution percentage EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage Total deductions EBP, Change in Net Asset Available for Benefit, Decrease Maximum loan amount available EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Measurements EBP, Investment, Fair Value and NAV [Text Block] Minimum loan amount available EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Accrued expenses EBP, Accrued Expense EBP 004 EBP 004 [Member] EBP 004 EBP, Fully Benefit-Responsive Investment Contract [Abstract] Investments at fair value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Net increase in net assets available for plan benefits per Form 5500 EBP, Form 5500 Caption, Net Assets, Before Plan Transfer EBP, Form 5500 Caption, Net Assets, Before Plan Transfer Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Reconciliation of Financial Statements to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] Plan Merger EBP, Plan Merger [Text Block] EBP, Plan Merger EBP, Investment, Fair Value and NAV [Abstract] Total assets EBP, Asset Assets EBP, Asset [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] Additions EBP, Change in Net Asset Available for Benefit, Increase [Abstract] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Payments of Benefits EBP, Payment to Participant [Policy Text Block] Net transfer of assets into Plan (Note 9) EBP, Change in Net Asset Available for Benefit, Transfer to (from) Plan Total liabilities EBP, Liability Amendment Flag Amendment Flag Basis of Accounting EBP, Basis of Accounting [Policy Text Block] EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] Due from brokers for securities sold EBP, Investment Sale, Receivable Number of shares invested (in shares) EBP, Investment, Number of Shares EBP, Description of Plan and Accounting Change [Abstract] Receivables: EBP, Receivable [Abstract] EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Table Text Block] EBP, Plan Termination [Line Items] EBP, Plan Termination [Line Items] EBP, Plan Termination Investments [Domain] Investments [Domain] Total Cash, cash equivalents and Investments Total Cash, cash equivalents and Investments EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Cash and Cash Equivalents EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Cash and Cash Equivalents Schedule H, Line 4i – Schedule of Assets (Held At End of Year) EBP, Schedule of Asset Held for Investment [Text Block] Cover [Abstract] Adjustment from contract value to fair value for fully-benefit responsive investment contracts EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Increase (Decrease) from Contract Value to Current Value Risks and Uncertainties EBP, Risk and Uncertainty [Text Block] Employer contributions EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Minimum Minimum [Member] EBP, Employer Contribution, Type [Axis] EBP, Employer Contribution, Type [Axis] EBP, Employer Contribution, Type Investment Type [Axis] Investment Type [Axis] Interest income on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Total contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution Schedule of Investment Funds EBP, Investment Funds [Table Text Block] EBP, Investment Funds Participant contributions EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Dividends and interest EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] Net increase before Plan transfer EBP, Change in Net Asset Available for Benefit, Before Plan Transfer Increase (Decrease) EBP, Change in Net Asset Available for Benefit, Before Plan Transfer Increase (Decrease) Future contribution percentage EBP, Participant Contributions, Maximum Future Contribution, Percent In Common Stock Fund EBP, Participant Contributions, Maximum Future Contribution, Percent In Common Stock Fund EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] Description of the Plan EBP, Description of Plan [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] Contributions EBP, Contribution [Policy Text Block] Hasbro, Inc. Common Stock EBP, Employer, Common Stock [Member] Prior year employer contributions receivable EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Prior Period, Before Plan Transfer, Employer Contribution Receivable EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Prior Period, Before Plan Transfer, Employer Contribution Receivable EBP, Schedule of Asset Held for Investment [Abstract] EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Annual discretionary contribution, percentage EBP, Employer Contribution, Participant Compensation, Annual Discretionary Contribution, Percentage EBP, Employer Contribution, Participant Compensation, Annual Discretionary Contribution, Percentage Net increase in net assets available for plan benefits per financial statements EBP, Net Asset Available for Benefit, Before Plan Transfer EBP, Net Asset Available for Benefit, Before Plan Transfer Schedule of Investment Information EBP, Nonparticipant-Directed Investment [Table Text Block] Total additions EBP, Change in Net Asset Available for Benefit, Increase Repayment of loans, primary residence, term EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term Investment income: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Cash and Cash Equivalents EBP, Cash and Cash Equivalents [Member] EBP, Cash and Cash Equivalents Investment, Identifier [Axis] Investment, Identifier [Axis] Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense EBP, Asset Held for Investment EBP, Asset Held for Investment EBP, Employer Contribution, Type [Domain] EBP, Employer Contribution, Type [Domain] EBP, Employer Contribution, Type [Domain] Document Information [Line Items] Document Information [Line Items] Number of loans EBP, Investment, Number Of Participant Loans EBP, Investment, Number Of Participant Loans EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Table] EBP, Plan Merger [Abstract] EBP, Plan Merger Participant compensation matched, percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Repayment of loans, general loan, term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term Employer contribution vesting serice period EBP, Employer Contribution Vesting Service Period Minimum Vesting service period for company contribution and/ or investment earning to the participant in Company Matching Contributions, Fixed Rate Contributions, Discretionary Profit-Sharing Contributions, Qualified Non-Elective Contributions, and Disability Contributions. EBP, Employer Contribution, Match One EBP, Employer Contribution, Match One [Member] EBP, Employer Contribution, Match One EBP, Plan Merger [Line Items] EBP, Plan Merger [Line Items] EBP, Plan Merger EBP, Master Trust [Line Items] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Tax Status [Table] EBP, Tax Status [Table] Net increase EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Related Party Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Total receivables EBP, Receivable Current year accrued administrative expenses EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Current Period, Before Plan Transfer, Accrued Administrative Expense EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Current Period, Before Plan Transfer, Accrued Administrative Expense Employer contributions EBP, Employer Contribution, Receivable Termination, withdrawal, and retirement payments directly to participants EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Current Value EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Employer contribution vesting percentage EBP, Employer Contribution Vesting Percentage Company contribution and/ or investment earning percentage vesting to the participant in Company Matching Contributions, Fixed Rate Contributions, Discretionary Profit-Sharing Contributions, Qualified Non-Elective Contributions, and Disability Contributions, upon completion of minimum service period or attainment of maximum vesting age EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Plan Termination [Abstract] EBP, Plan Termination EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] Payables for securities purchased EBP, Liability for Investment Purchase Current year adjustment from contract value to fair value for fully-benefit responsive contracts EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Current Period, Before Plan Transfer, Increase (Decrease) from Contract Value to Current Value EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Current Period, Before Plan Transfer, Increase (Decrease) from Contract Value to Current Value EBP, Tax Status [Abstract] EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] Current year employer contributions receivable EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Current Year, Before Plan Transfer, Employer Contribution Receivable EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Current Year, Before Plan Transfer, Employer Contribution Receivable EBP, Plan Termination [Table] EBP, Plan Termination [Table] EBP, Plan Termination EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Employer Contribution, Match Two EBP, Employer Contribution, Match Two [Member] EBP, Employer Contribution, Match Two Administrative Expenses EBP, Expense [Policy Text Block] Reconciliation of Financial Statements to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Participant loan, current value EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Prior year adjustment from contract value to fair value for fully-benefit responsive contracts EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Prior Period, Before Plan Transfer, Increase (Decrease) from Contract Value to Current Value EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Prior Period, Before Plan Transfer, Increase (Decrease) from Contract Value to Current Value Investments EBP, Investment [Policy Text Block] Investment Information EBP Investment [Text Block] EBP Investment Accrued administrative expenses EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Accrued Administrative Expense EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Accrued Administrative Expense EBP, Master Trust [Table] EBP, Master Trust [Table] Fair Value Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] EBP, Before Plan Transfer [Abstract] EBP, Before Plan Transfer [Abstract] EBP, Before Plan Transfer Document Type Document Type Total Cash, cash equivalents and Investments EBP, Investment, Excluding Plan Interest in Master Trust, Current Value, Cash and Cash Equivalents EBP, Investment, Excluding Plan Interest in Master Trust, Current Value, Cash and Cash Equivalents Plan Termination EBP, Plan Termination [Text Block] Entity Central Index Key Entity Central Index Key Investment rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Employer Matching Contribution EBP, Employer Matching Contribution [Member] EBP, Employer Matching Contribution EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Net assets available for plan benefits: EBP, Net Asset Available for Benefit [Abstract] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] EBP, Risk and Uncertainty [Abstract] EBP, Subsequent Event [Table] EBP, Subsequent Event [Table] Deductions EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Cash and Cash Equivalents EBP, Cash And Cash Equivalents EBP, Cash And Cash Equivalents Forfeited nonvested account, decrease from employer EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Notes receivable from participants EBP, Note Receivable from Participant Commingled Funds Commingled Funds [Member] Commingled Funds Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Summary of Accounting Policies EBP, Summary of Accounting Policy [Text Block] Entity Registrant Name Entity Registrant Name Prior year accrued administrative expenses EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Prior Period, Before Plan Transfer, Accrued Administrative Expense EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Prior Period, Before Plan Transfer, Accrued Administrative Expense Participant, number of hours worked EBP, Participant Vesting, Number Of Service Hours EBP, Participant Vesting, Number Of Service Hours EBP, Subsequent Event [Abstract] Liabilities EBP, Liability [Abstract] Subsequent Events EBP, Subsequent Event [Text Block] EBP 002 EBP 002 [Member] EBP 002 EBP, Fixed Rate Contribution EBP, Fixed Rate Contribution [Member] EBP, Fixed Rate Contribution Total Cash, cash equivalents and Investments EBP, Employee Benefit Plan, Investment, Excluding Plan Interest In Master Trust, Fair Value, And Cash And Cash Equivalents EBP, Employee Benefit Plan, Investment, Excluding Plan Interest In Master Trust, Fair Value, And Cash And Cash Equivalents Federal Income Taxes EBP, Tax Status [Text Block] Maximum borrowing to total account, percent EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, Subsequent Event [Line Items] EBP, Subsequent Event [Line Items] Document Information [Table] Document Information [Table] Employer contributions receivable EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Employer Contribution Receivable EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Employer Contribution Receivable EBP, Discretionary Profit Sharing Contribution EBP, Discretionary Profit Sharing Contribution [Member] EBP, Discretionary Profit Sharing Contribution Notes Receivable from Participants Loan Participations and Assignments [Member] Note Receivable from Participant EBP, Note Receivable from Participant [Policy Text Block] Total investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Net assets available for plan benefits Beginning of year End of year Net assets available for plan benefits EBP, Net Asset Available for Benefit Entity [Domain] Entity [Domain] Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Investments, at contract value EBP, Investment, Excluding Plan Interest in Master Trust, Contract Value Forfeited account balance EBP, Forfeited Nonvested Account Employer contribution matching percentage EBP, Employer Contribution, Matching Percentage Net assets available for plan benefits per Form 5500 EBP, Form 5500 Caption, Net Assets EBP, Plan Merger [Table] EBP, Plan Merger [Table] EBP, Plan Merger EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items]