Goodwill and Intangible Assets (Schedule of Intangible Assets Excluding Goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 02, 2015	Oct. 03, 2014
Intangible Assets Excluding Goodwill [Line Items]
Gross carrying amount	$ 158.5	$ 155.0
Accumulated amortization	113.5	80.0
Net carrying amount	45.0	75.0
Trademarks [Member]
Intangible Assets Excluding Goodwill [Line Items]
Indefinite-lived trademarks, gross carrying amounts	1.6	1.6
Indefinite-lived intangible assets, net carrying amount	$ 1.6	1.6
Customer Relationships [Member]
Intangible Assets Excluding Goodwill [Line Items]
Weighted average amortization period remaining (years)	1 year
Gross carrying amount	$ 57.2	57.2
Accumulated amortization	48.7	39.4
Net carrying amount	$ 8.5	17.8
Developed Technology and Other [Member]
Intangible Assets Excluding Goodwill [Line Items]
Weighted average amortization period remaining (years)	1 year 9 months
Gross carrying amount	$ 99.7	96.2
Accumulated amortization	64.8	40.6
Net carrying amount	$ 34.9	$ 55.6