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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 45
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
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Segment Reporting, Revenue by Brand Portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Oct. 01, 2017	Sep. 30, 2018	Oct. 01, 2017
Revenue from External Customer [Line Items]
Net revenue	$ 1,569,686	$ 1,791,502	$ 3,190,485	$ 3,613,671
Franchise Brands [Member]
Revenue from External Customer [Line Items]
Net revenue	847,745	892,546	1,715,986	1,894,140
Partner Brands [Member]
Revenue from External Customer [Line Items]
Net revenue	305,827	485,747	714,424	928,724
Hasbro Gaming [Member]
Revenue from External Customer [Line Items]
Net revenue	280,832	280,097	520,334	549,736
Gaming including Magic the Gathering and Monopoly [Member]
Revenue from External Customer [Line Items]
Net revenue	447,844	424,847	$ 964,159	951,397
Segment Reporting, Additional Information about Entity's Reportable Segments			For the quarter and nine-months ended October 1, 2017, revenues of $65,264 and $90,396, respectively, were reclassified from Emerging Brands to Franchise Brands to conform to the presentation for the quarter and nine-months ended September 30, 2018. Hasbro's total gaming category, including all gaming net revenues, most notably MAGIC: THE GATHERING and MONOPOLY, totaled $447,844 and $964,159 for the quarter and nine-months ended September 30, 2018, respectively. For the quarter and nine-months ended October 1, 2017, total gaming net revenues were $424,847 and $951,397, respectively.
Emerging Brands [Member]
Revenue from External Customer [Line Items]
Net revenue	$ 135,282	133,112	$ 239,741	241,071
Emerging Brands to Franchise Brands [Member]
Revenue from External Customer [Line Items]
Net revenue		$ 65,264		$ 90,396