Note 10 Shares Authorized for Future Issuance and Available for Grant (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014
Shares Authorized for Future Issuance and Available for Grant [Abstract]
Common Stock, Capital Shares Reserved for Future Issuance	12,500,000
Stock options and unvested restricted stock units outstanding	9,500,000
Number of Shares Available for Future Grant	3,000,000
Stock Repurchased During Period, Shares	6,800,000	5,800,000
Stock Repurchased During Period, Value	$ 141.2	$ 121.2
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 212.8
Shares Paid for Tax Withholding for Share Based Compensation	46,000	61,000	71,000
Adjustments Related to Tax Withholding for Share-based Compensation	$ 1.0	$ 1.5	$ 1.2