Segment Reporting - Information and Reconciliation by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 25, 2022	Dec. 26, 2021
Segment Reporting Information [Line Items]
Net revenues	$ 5,003.3	$ 5,856.7	$ 6,420.4
Depreciation and Amortization	210.7	232.5	280.1
Capital Additions	209.3	174.2	132.7
Total Assets	6,540.9	9,295.9	10,037.8
Nonrelated Party
Segment Reporting Information [Line Items]
Net revenues	5,003.3	5,856.7	6,420.4
Affiliated Entity
Segment Reporting Information [Line Items]
Net revenues	0.0	0.0	0.0
Corporate and Other
Segment Reporting Information [Line Items]
Depreciation and Amortization	24.4	21.6	22.6
Capital Additions	26.4	27.8	18.3
Total Assets	(7,763.5)	(5,703.8)	(2,525.6)
Corporate and Other | Nonrelated Party
Segment Reporting Information [Line Items]
Net revenues	0.0	0.0	0.0
Corporate and Other | Affiliated Entity
Segment Reporting Information [Line Items]
Net revenues	(515.3)	(626.7)	(648.5)
Consumer Products | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and Amortization	130.0	152.5	112.4
Capital Additions	60.0	87.0	73.1
Total Assets	6,456.2	5,757.7	4,925.5
Consumer Products | Operating Segments | Nonrelated Party
Segment Reporting Information [Line Items]
Net revenues	2,886.4	3,572.5	3,981.6
Consumer Products | Operating Segments | Affiliated Entity
Segment Reporting Information [Line Items]
Net revenues	279.9	396.7	465.4
Wizards of the Coast and Digital Gaming
Segment Reporting Information [Line Items]
Net revenues	1,457.6	1,325.1	1,286.6
Wizards of the Coast and Digital Gaming | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and Amortization	27.8	14.6	48.5
Capital Additions	122.5	52.5	35.1
Total Assets	4,340.5	2,968.7	1,585.1
Wizards of the Coast and Digital Gaming | Operating Segments | Nonrelated Party
Segment Reporting Information [Line Items]
Net revenues	1,457.6	1,325.1	1,286.6
Wizards of the Coast and Digital Gaming | Operating Segments | Affiliated Entity
Segment Reporting Information [Line Items]
Net revenues	183.6	172.5	121.6
Entertainment
Segment Reporting Information [Line Items]
Net revenues	659.3	959.1	1,152.2
Entertainment | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and Amortization	28.5	43.8	96.6
Capital Additions	0.4	6.9	6.2
Total Assets	3,507.7	6,273.3	6,052.8
Entertainment | Operating Segments | Nonrelated Party
Segment Reporting Information [Line Items]
Net revenues	659.3	959.1	1,152.2
Entertainment | Operating Segments | Affiliated Entity
Segment Reporting Information [Line Items]
Net revenues	$ 51.8	$ 57.5	$ 61.5