Segment Reporting - Net Revenues by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2023	Jun. 26, 2022	Jul. 02, 2023	Jun. 26, 2022
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 1,210.0	$ 1,339.2	$ 2,211.0	$ 2,502.3
External
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	1,210.0	1,339.2	2,211.0	2,502.3
Affiliate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	0.0	0.0	0.0	0.0
Corporate and Other | External
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	0.0	0.0	0.0	0.0
Corporate and Other | Affiliate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(137.4)	(210.9)	(271.6)	(346.4)
Consumer Products
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	655.2	734.2	1,175.6	1,407.0
Consumer Products | Operating Segments | External
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	655.2	734.2	1,175.6	1,407.0
Consumer Products | Operating Segments | Affiliate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	80.8	145.2	154.0	237.1
Wizards of the Coast and Digital Gaming
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	375.6	419.8	670.8	682.6
Wizards of the Coast and Digital Gaming | Operating Segments | External
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	375.6	419.8	670.8	682.6
Wizards of the Coast and Digital Gaming | Operating Segments | Affiliate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	45.2	52.9	93.0	82.6
Entertainment
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	179.2	185.2	364.6	412.7
Entertainment | Operating Segments | External
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	179.2	185.2	364.6	412.7
Entertainment | Operating Segments | Affiliate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 11.4	$ 12.8	$ 24.6	$ 26.7