Goodwill and Intangible Assets (Schedule Of Intangible Assets Subject To Amortization) (Details) - USD ($) $ in Millions	9 Months Ended
	Jul. 03, 2015	Oct. 03, 2014
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, Gross Carrying Amount	$ 158.5	$ 155.0
Total intangible assets, Accumulated Amortization	(105.2)	(80.0)
Total intangible assets, Net Carrying Amount	$ 53.3	75.0
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period Remaining (Years)	15 months
Gross Carrying Amount	$ 57.2	57.2
Accumulated Amortization	(46.4)	(39.4)
Net Carrying Amount	$ 10.8	17.8
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period Remaining (Years)	24 months
Gross Carrying Amount	$ 99.7	96.2
Accumulated Amortization	(58.8)	(40.6)
Net Carrying Amount	40.9	55.6
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Trademarks	1.6	1.6
Nonamortizing intangible assets, Gross Carrying Amount	$ 1.6	$ 1.6