Equity (Details 1) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jul. 01, 2017	Oct. 01, 2016	Jul. 02, 2016	Oct. 01, 2016
Equity, Class of Treasury Stock [Line Items]
Repurchases of common stock, including shares surrendered for tax withholdings	$ 14.4		$ 114.9
Additional shares yet to be delivered under the ASR Program, excluded from diluted shares			0.1
Accelerated Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Accelerated Share Repurchase Program - Initial Payment			$ 100.0
Repurchases of common stock, shares	0.0		0.9
Shares received in initial delivery, percentage of total shares expected to be delivered under ASR			90.00%
Repurchases of common stock, including shares surrendered for tax withholdings	$ 0.0	$ 10.0	$ 90.0
Treasury Stock Acquired, Average Cost Per Share				$ 98.48
General repurchase program [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchases of common stock, shares			0.9
Repurchases of common stock, including shares surrendered for tax withholdings			$ 90.0
Withholding in satisfaction of taxes on vested equity award [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchases of common stock, shares	0.2		0.2
Repurchases of common stock, including shares surrendered for tax withholdings	$ 14.4		$ 14.9