Investments in Productions and Investments in Acquired Content Rights - Program Costs Amortization (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2023	Sep. 25, 2022	Oct. 01, 2023	Sep. 25, 2022
Product Information [Line Items]
Program cost amortization	$ 68.4	$ 146.5	$ 325.3	$ 365.7
eOne
Product Information [Line Items]
Program cost amortization			325.3
eOne | Investment in Production
Product Information [Line Items]
Program cost amortization			294.5
eOne | Investment in Content
Product Information [Line Items]
Program cost amortization			$ 30.8