Goodwill and Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 27, 2024	Dec. 29, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, period increase (decrease)	$ 0.0
Goodwill, impairment loss	0.0
Finite-Lived Intangible Assets [Line Items]
Asset impairment charges	0.0	$ 16.1
Amortization of intangible assets	48.4	48.1
In-process research and development
Finite-Lived Intangible Assets [Line Items]
Asset impairment charges	$ 0.0	$ 16.1

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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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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Amount of increase (decrease) of 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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