Goodwill and Intangible Assets - Schedule of Other Intangibles (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 25, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Acquired product rights	$ 1,763.8	$ 2,112.1
Licensed rights of entertainment properties	45.0	45.0
Impairment	(116.0)	(281.0)
Accumulated amortization	(1,181.0)	(1,137.2)
Amortizable intangible assets	511.8	738.9
Product rights with indefinite lives	75.7	75.7
Total other intangibles assets, net	$ 587.5	$ 814.6

Finite-Lived Intangible Assets, Accumulated Impairment

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
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Gross carrying amount as of the balance sheet date of certain rights acquired to exercise a certain privilege or pursue a particular business or occupation and which is deemed to have a finite economic life.

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Gross carrying amount before accumulated amortization as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a specified period of time.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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