Segment Reporting - Operating Profit (Loss) by Segments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jul. 02, 2023	Jun. 30, 2024	Jul. 02, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss):	$ 212.1	$ (188.6)	$ 328.3	$ (170.7)
Interest expense	43.0	46.6	81.5	92.9
Interest income	(13.0)	(5.8)	(21.3)	(11.8)
Other non-operating expense (income)	(0.8)	(1.5)	4.2	(2.9)
Earnings (loss) before income taxes	182.9	(227.9)	263.9	(248.9)
Selling, distribution and administration	318.5	380.6	553.3	697.7
Cost of sales	237.7	352.2	441.9	637.5
Revision of Prior Period, Error Correction, Adjustment
Segment Reporting, Revenue Reconciling Item [Line Items]
Selling, distribution and administration	31.1
Cost of sales	26.7
Corporate and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss):	(24.7)	(18.1)	9.8	(22.3)
Corporate and Other | Operational Excellence Program
Segment Reporting, Revenue Reconciling Item [Line Items]
Transformation office and consulting fees	7.3	10.4	12.5	21.0
Consumer Products | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss):	(9.3)	11.4	(56.2)	(34.6)
Wizards of the Coast and Digital Gaming | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss):	247.1	142.3	369.9	219.1
Entertainment | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss):	$ (1.0)	$ (324.2)	$ 4.8	$ (332.9)