Goodwill And Intangible Assets (Schedule Of Carrying Value And Accumulated Amortization For Intangible Assets) (Details) - USD ($) $ in Millions	Mar. 29, 2020	Sep. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Gross Carrying Amount	$ 1,021.3	$ 1,034.7
Amortizable Intangible Assets, Accumulated Amortization	(566.5)	(538.7)
Amortizable Intangible Assets, Net	454.8	496.0
Total Intangible Assets, Gross Carrying Amount	2,019.8	2,045.8
Total Intangible Assets, Net	1,453.3	1,507.1
Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Gross Carrying Amount	998.5	1,011.1
Amortizable Intangible Assets, Net	998.5	1,011.1
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Gross Carrying Amount	684.8	694.9
Amortizable Intangible Assets, Accumulated Amortization	(344.8)	(329.7)
Amortizable Intangible Assets, Net	340.0	365.2
Technology Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Gross Carrying Amount	175.7	179.4
Amortizable Intangible Assets, Accumulated Amortization	(96.4)	(90.9)
Amortizable Intangible Assets, Net	79.3	88.5
Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Gross Carrying Amount	160.8	160.4
Amortizable Intangible Assets, Accumulated Amortization	(125.3)	(118.1)
Amortizable Intangible Assets, Net	$ 35.5	$ 42.3