Segment Reporting - Other Supplemental Information by Segments Total Assets and Other Supplemental Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2025	Mar. 31, 2024	Dec. 29, 2024
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 6,040.0	$ 6,203.0	$ 6,340.3
Depreciation and intangible asset amortization	34.2	38.3
Additions to property, plant and equipment	13.8	22.1
Operating Segments \| Wizards of the Coast and Digital Gaming
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	6,250.4	4,662.1	5,778.4
Depreciation and intangible asset amortization	4.6	4.3
Additions to property, plant and equipment	1.7	6.0
Operating Segments \| Consumer Products
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	7,845.7	6,599.9	7,785.2
Depreciation and intangible asset amortization	18.2	21.6
Additions to property, plant and equipment	11.3	11.4
Operating Segments \| Entertainment
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,819.8	2,901.5	2,857.8
Depreciation and intangible asset amortization	5.1	4.2
Additions to property, plant and equipment	0.0	0.0
Corporate and Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	(10,875.9)	(7,960.5)	$ (10,081.1)
Depreciation and intangible asset amortization	6.3	8.2
Additions to property, plant and equipment	$ 0.8	$ 4.7

Amount of asset recognized for present right to economic benefit.

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+ Details

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