Revenue Recognition - Net Revenues by Category (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jul. 02, 2023	Jun. 30, 2024	Jul. 02, 2023
Revenue from External Customer [Line Items]
Net revenues	$ 995.3	$ 1,210.0	$ 1,752.6	$ 2,211.0
Wizards of the Coast and Digital Gaming
Revenue from External Customer [Line Items]
Net revenues	452.0	375.6	768.3	670.8
Entertainment
Revenue from External Customer [Line Items]
Net revenues	18.8	179.2	46.8	364.6
Tabletop Gaming | Wizards of the Coast and Digital Gaming
Revenue from External Customer [Line Items]
Net revenues	307.6	298.5	535.8	516.4
Digital and Licensed Gaming | Wizards of the Coast and Digital Gaming
Revenue from External Customer [Line Items]
Net revenues	144.4	77.1	232.5	154.4
Film and TV | Entertainment
Revenue from External Customer [Line Items]
Net revenues	1.8	153.3	1.8	321.7
Family Brands | Entertainment
Revenue from External Customer [Line Items]
Net revenues	$ 17.0	$ 25.9	$ 45.0	$ 42.9