Other Intangible Assets and Goodwill Other Intangible Assets and Goodwill (Indefinite-Lived Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 30, 2018	Sep. 30, 2018
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 222.4	$ 231.0
Trade Names, Trademarks and Patents [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	207.3	215.9
Other finite-lived intangible assets [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 15.1	$ 15.1