Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 29, 2024	Oct. 01, 2023	Sep. 29, 2024	Oct. 01, 2023
Income Tax Disclosure [Abstract]
Effective income tax rate	23.10%	20.80%	24.10%	8.00%
Discrete income tax expense (benefit)	$ 1.1	$ (104.4)	$ 1.8	$ (113.3)
Loss on disposal of business and assets held for sale	0.0	473.0	24.4	473.0
Impairment of goodwill	0.0	0.0	0.0	231.2
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal of business and assets held for sale	0.0	$ 473.0	$ 24.4	473.0
Disposal Group, Held-for-sale \| eOne Film and TV
Income Tax Disclosure [Abstract]
Loss on disposal of business and assets held for sale	(473.0)			473.0
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal of business and assets held for sale	$ (473.0)			$ 473.0

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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