Goodwill - Schedule of Goodwill (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Jul. 02, 2023	Apr. 02, 2023
Goodwill [Roll Forward]
Beginning balance	$ 2,279.2		$ 3,470.1	$ 3,470.1
Foreign exchange translation	(0.4)			0.0
Ending balance	2,278.8	$ 2,279.2		3,470.1
Impairment during the period		960.0	231.2
Consumer Products
Goodwill [Roll Forward]
Beginning balance	1,582.3		1,584.7	1,584.7
Foreign exchange translation	(0.1)			0.0
Ending balance	1,582.2	1,582.3		1,584.7
Wizards of the Coast and Digital Gaming
Goodwill [Roll Forward]
Beginning balance	371.7		371.5	371.5
Foreign exchange translation	(0.2)			0.0
Ending balance	371.5	371.7		371.5
Entertainment
Goodwill [Roll Forward]
Beginning balance	325.2		$ 1,513.9	1,513.9
Foreign exchange translation	(0.1)			0.0
Ending balance	$ 325.1	$ 325.2		$ 1,513.9