Consolidated Statements of Shareholders' Equity and Redeemable Noncontrolling Interests - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Noncontrolling Interests
Beginning balance at Dec. 26, 2021	$ 3,063.1	$ 110.1	$ 2,428.0	$ 4,257.8	$ (235.3)	$ (3,534.7)	$ 37.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss) earnings attributable to Hasbro, Inc.	332.4			332.4
Net loss attributable to noncontrolling interests	(1.4)						(1.4)
Change in put option value	(0.4)		(0.4)
Other comprehensive earnings (loss)	(89.6)				(89.6)
Stock-based compensation transactions	53.1		31.0			22.1
Purchases of common stock	(125.0)					(125.0)
Stock-based compensation expense	66.3		65.8			0.5
Dividends declared	(291.2)		1.2	(292.4)
Distributions paid to noncontrolling owners and other foreign exchange	(12.8)						(12.8)
Renegade buyout	4.5		4.5
Ending balance at Sep. 25, 2022	2,999.0	110.1	2,530.1	4,297.8	(324.9)	(3,637.1)	23.0
Beginning balance at Dec. 26, 2021	23.9
Redeemable Noncontrolling Interests
Net loss attributable to noncontrolling interests	0.6
Distributions paid to noncontrolling owners and other foreign exchange	(1.5)
Buyout of redeemable noncontrolling interest	(23.0)
Ending balance at Sep. 25, 2022	0.0
Beginning balance at Jun. 26, 2022	3,012.8	110.1	2,503.4	4,265.9	(259.6)	(3,636.2)	29.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss) earnings attributable to Hasbro, Inc.	129.2			129.2
Net loss attributable to noncontrolling interests	(1.0)						(1.0)
Other comprehensive earnings (loss)	(65.3)				(65.3)
Stock-based compensation transactions	(1.6)		(1.5)			(0.1)
Purchases of common stock	(1.0)					(1.0)
Stock-based compensation expense	23.2		23.0			0.2
Dividends declared	(96.6)		0.7	(97.3)
Distributions paid to noncontrolling owners and other foreign exchange	(5.2)						(5.2)
Renegade buyout	4.5		4.5
Ending balance at Sep. 25, 2022	2,999.0	110.1	2,530.1	4,297.8	(324.9)	(3,637.1)	23.0
Beginning balance at Jun. 26, 2022	23.0
Redeemable Noncontrolling Interests
Buyout of redeemable noncontrolling interest	(23.0)
Ending balance at Sep. 25, 2022	0.0
Beginning balance at Dec. 25, 2022	2,861.9	110.1	2,540.6	4,071.4	(254.9)	(3,634.4)	29.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss) earnings attributable to Hasbro, Inc.	(428.2)			(428.2)
Net loss attributable to noncontrolling interests	1.2						1.2
Other comprehensive earnings (loss)	46.5				46.5
Stock-based compensation transactions	(15.8)		(21.4)			5.6
Stock-based compensation expense	55.9		53.4			2.5
Dividends declared	(291.3)		3.6	(294.9)
Distributions paid to noncontrolling owners and other foreign exchange	(4.9)						(4.9)
Renegade buyout	(2.1)		(2.1)
Ending balance at Oct. 01, 2023	2,223.2	110.1	2,574.1	3,348.3	(208.4)	(3,626.3)	25.4
Beginning balance at Dec. 25, 2022	0.0
Ending balance at Oct. 01, 2023	0.0
Beginning balance at Jul. 02, 2023	2,470.2	110.1	2,554.6	3,618.1	(213.5)	(3,626.3)	27.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss) earnings attributable to Hasbro, Inc.	(171.1)			(171.1)
Net loss attributable to noncontrolling interests	0.7						0.7
Other comprehensive earnings (loss)	5.1				5.1
Stock-based compensation transactions	(1.4)		(1.3)			(0.1)
Stock-based compensation expense	19.3		19.2			0.1
Dividends declared	(97.1)		1.6	(98.7)
Distributions paid to noncontrolling owners and other foreign exchange	(2.5)						(2.5)
Ending balance at Oct. 01, 2023	2,223.2	$ 110.1	$ 2,574.1	$ 3,348.3	$ (208.4)	$ (3,626.3)	$ 25.4
Beginning balance at Jul. 02, 2023	0.0
Ending balance at Oct. 01, 2023	$ 0.0