Segment Reporting - Total Assets by Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2023	Sep. 25, 2022	Oct. 01, 2023	Sep. 25, 2022	Dec. 25, 2022
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 8,340.2	$ 9,626.1	$ 8,340.2	$ 9,626.1	$ 9,295.9
Corporate and Other
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	(7,510.0)	(4,996.9)	(7,510.0)	(4,996.9)	(5,703.8)
Transformation office and consulting fees		2.8		24.3
Corporate and Other | Operational Excellence
Segment Reporting, Asset Reconciling Item [Line Items]
Transformation office and consulting fees	8.4		29.4
Consumer Products | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	6,474.4	5,817.9	6,474.4	5,817.9	5,757.7
Wizards of the Coast and Digital Gaming | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	4,029.1	2,646.6	4,029.1	2,646.6	2,968.7
Entertainment | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 5,346.7	$ 6,158.5	$ 5,346.7	$ 6,158.5	$ 6,273.3