Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2025	Dec. 27, 2024
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 2,215.0
Net Book Value	2,198.0
In-process research and development - Generics	17.0
Intangible assets, net	2,560.4	$ 419.4
Amortizable, gross carrying value	2,693.2	495.2
Accumulated Amortization	$ 149.8	75.8
Therakos
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets, net		108.7
Amortizable, gross carrying value		129.4
Accumulated Amortization		$ 20.7