Property, Plant And Equipment (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions	Sep. 29, 2023	Sep. 30, 2022
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 4,171.7	$ 4,111.1
Accumulated depreciation and amortization	(2,781.6)	(2,506.3)
Total property, plant and equipment, net	1,390.1	1,604.8
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	11.8	11.9
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	588.2	555.6
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	74.8	70.1
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	3,389.3	3,316.3
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 107.6	$ 157.2