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Equity (Details 1) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Oct. 01, 2016
Jul. 02, 2016
Sep. 30, 2017
Oct. 01, 2016
Equity, Class of Treasury Stock [Line Items]        
Repurchases of common stock, including shares surrendered for tax withholdings     $ 14.6 $ 114.9
Stock Repurchase Program, Remaining Available Amount     $ 100.0  
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 0.1 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 $ 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     0.0 1.0
Repurchases of common stock, including shares surrendered for tax withholdings     $ 0.0 $ 100.0
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     $ 14.6 $ 14.9