Goodwill - Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jul. 02, 2023	Jun. 30, 2024	Jul. 02, 2023
Goodwill [Roll Forward]
Beginning balance			$ 2,279.2	$ 3,470.1
Foreign exchange translation			(0.4)	0.3
Impairment of goodwill	$ 0.0	$ 231.2	0.0	231.2
Ending balance	2,278.8	3,239.2	2,278.8	3,239.2
Consumer Products
Goodwill [Roll Forward]
Beginning balance			1,582.3	1,584.7
Foreign exchange translation			(0.1)	0.1
Impairment of goodwill				0.0
Ending balance	1,582.2	1,584.8	1,582.2	1,584.8
Wizards of the Coast and Digital Gaming
Goodwill [Roll Forward]
Beginning balance			371.7	371.5
Foreign exchange translation			(0.3)	0.2
Impairment of goodwill				0.0
Ending balance	371.4	371.7	371.4	371.7
Entertainment
Goodwill [Roll Forward]
Beginning balance			325.2	1,513.9
Foreign exchange translation			0.0	0.0
Impairment of goodwill				231.2
Ending balance	$ 325.2	$ 1,282.7	$ 325.2	$ 1,282.7