Segment Reporting - Operating Profit (Loss) by Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 25, 2022	Dec. 26, 2021
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	$ (1,538.8)	$ 407.7	$ 763.3
Interest expense	186.3	171.0	179.7
Interest income	(23.0)	(11.8)	(5.4)
Other non-operating expense (income)	7.0	(13.0)	7.1
Earnings (loss) before income taxes	(1,709.1)	261.5	581.9
Corporate and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	(88.3)	(370.6)	(93.3)
Transformation office and consulting fees		24.7
Corporate and Other | Operational Excellence Program
Segment Reporting, Revenue Reconciling Item [Line Items]
Transformation office and consulting fees	35.3
Consumer Products | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	(64.7)	217.3	401.4
Wizards of the Coast and Digital Gaming | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	525.7	538.3	547.0
Entertainment | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating profit (loss)	$ (1,911.5)	$ 22.7	$ (91.8)