Note 11 Shares Authorized for Future Issuance and Available for Grant (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Oct. 03, 2015	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Shares Authorized for Future Issuance and Available for Grant [Abstract]
Common Stock, Capital Shares Reserved for Future Issuance	13,000,000	13,000,000
Stock options and unvested restricted stock units outstanding	10,000,000	10,000,000
Number of Shares Available for Future Grant	3,000,000	3,000,000
Stock Repurchase Program, Authorized Amount				$ 100.0
Stock Repurchase Program, Additional Authorized Amount	$ 200.0		$ 100.0
Stock Repurchased During Period, Shares		5,800,000
Stock Repurchased During Period, Value		$ 121.2
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 204.0	$ 204.0
Shares Paid for Tax Withholding for Share Based Compensation		61,000	71,000	169,000
Adjustments Related to Tax Withholding for Share-based Compensation		$ 1.5	$ 1.2	$ 1.5