Goodwill And Intangible Assets (Schedule Of Carrying Value And Accumulated Amortization For Intangible Assets) (Details) - USD ($) $ in Millions	Jun. 28, 2020	Sep. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,024.1	$ 1,034.7
Accumulated Amortization	(585.0)	(538.7)
Net	439.1	496.0
Total Intangible Assets, Gross Carrying Amount	2,025.2	2,045.8
Total Intangible Assets, Net	1,440.2	1,507.1
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,001.1	1,011.1
Net	1,001.1	1,011.1
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	687.5	694.9
Accumulated Amortization	(355.8)	(329.7)
Net	331.7	365.2
Technology assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	175.7	179.4
Accumulated Amortization	(100.2)	(90.9)
Net	75.5	88.5
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	160.9	160.4
Accumulated Amortization	(129.0)	(118.1)
Net	$ 31.9	$ 42.3