Goodwill and Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Jun. 28, 2024	Mar. 29, 2024	Jun. 30, 2023	Jun. 28, 2024	Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, period increase (decrease)	$ 0.0			$ 0.0
Goodwill, impairment loss	0.0			0.0
Completed and transferred in-process research and development	$ 33.4	$ 55.7		$ 89.1	$ 9.5
Finite-lived intangible assets, useful life	12 years	8 years	12 years	12 years	12 years
Amortization of intangible assets	$ 46.0		$ 51.3	$ 139.6	$ 174.7