Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2024	Jul. 02, 2023
Assets
Balance at beginning of the year	$ 213.3	$ 594.4
Recognized in current year	135.8	320.3
Amounts reclassified to accounts receivable	(109.6)	(352.1)
Foreign currency impact	(2.3)	7.3
Ending Balance	237.2	569.9
Liabilities
Balance at beginning of the year	230.8	113.0
Recognized in current year	131.9	164.0
Amounts in beginning balance reclassified to revenue	(45.4)	(58.8)
Current year amounts reclassified to revenue	(58.5)	(97.9)
Foreign currency impact	0.1	(1.0)
Ending Balance	$ 258.9	$ 119.3

Change In Contract With Customer, Asset

No definition available.

Name:	has_ChangeInContractWithCustomerAssetRollForward
Namespace Prefix:	has_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Change In Contract With Customer, Liability

+ References

No definition available.

+ Details

Name:	has_ChangeInContractWithCustomerLiabilityRollForward
Namespace Prefix:	has_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Contract With Customer, Asset, Foreign Currency Impact

+ References

No definition available.

+ Details

Name:	has_ContractWithCustomerAssetForeignCurrencyImpact
Namespace Prefix:	has_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Contract With Customer, Asset, Recognized In Current Year

+ References

No definition available.

+ Details

Name:	has_ContractWithCustomerAssetRecognizedInCurrentYear
Namespace Prefix:	has_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Contract With Customer, Liability, Amounts In Beginning Balance Reclassified To Revenue

+ References

No definition available.

+ Details

Name:	has_ContractWithCustomerLiabilityAmountsInBeginningBalanceReclassifiedToRevenue
Namespace Prefix:	has_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Contract With Customer, Liability Current Year Amounts Reclassified To Revenue

+ References

No definition available.

+ Details

Name:	has_ContractWithCustomerLiabilityCurrentYearAmountsReclassifiedToRevenue
Namespace Prefix:	has_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Contract With Customer, Liability, Foreign Currency Impact

+ References

No definition available.

+ Details

Name:	has_ContractWithCustomerLiabilityForeignCurrencyImpact
Namespace Prefix:	has_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Contract With Customer, Liability, Including New Contract Revenue, Recognized

+ References

No definition available.

+ Details

Name:	has_ContractWithCustomerLiabilityIncludingNewContractRevenueRecognized
Namespace Prefix:	has_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

+ Details

Name:	us-gaap_ContractWithCustomerAssetNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of decrease in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time from transfer to receivable due to right to consideration becoming unconditional.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-10

+ Details

Name:	us-gaap_ContractWithCustomerAssetReclassifiedToReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-2

+ Details

Name:	us-gaap_ContractWithCustomerLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant