Note 7 Stock Repurchase (Details) - USD ($) $ in Millions	6 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Stockholders' Equity Attributable to Parent [Abstract]
Treasury Stock, Shares, Acquired	0	5,300,000
Treasury Stock, Value, Acquired, Cost Method	$ 0.0	$ 103.4
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 212.8
Shares Paid for Tax Withholding for Share Based Compensation	453,000	20,000
Amount of Tax Withholding for Share-based Compensation	$ 13.6	$ 0.5