Goodwill and Intangible Assets (Schedule Of Intangible Assets Subject To Amortization) (Details) - USD ($) $ in Millions	9 Months Ended
	Jul. 01, 2016	Oct. 02, 2015
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, Gross Carrying Amount	$ 208.7	$ 158.5
Total intangible assets, Accumulated Amortization	(140.5)	(113.5)
Total intangible assets, Net Carrying Amount	68.2	45.0
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
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period Remaining (Years)	2 years 2 months 12 days
Gross Carrying Amount	$ 60.3	57.2
Accumulated Amortization	(55.3)	(48.7)
Net Carrying Amount	$ 5.0	8.5
Developed technology and other[Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period Remaining (Years)	5 years 9 months 18 days
Gross Carrying Amount	$ 146.8	99.7
Accumulated Amortization	(85.2)	(64.8)
Net Carrying Amount	$ 61.6	$ 34.9