Property, Plant, and Equipment, Net (Details) - USD ($) $ in Millions	Jun. 27, 2025	Sep. 27, 2024
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment, gross	$ 4,292.7	$ 4,210.1
Accumulated depreciation	(3,078.9)	(2,929.8)
Total property, plant, and equipment, net	1,213.8	1,280.3
Land and improvements
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment, gross	11.9	11.9
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment, gross	639.2	610.2
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment, gross	95.9	81.3
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment, gross	3,453.6	3,418.0
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment, gross	$ 92.1	$ 88.7