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Earnings Per Share Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Aug. 08, 2016
Earnings Per Share [Line Items]        
Anti-dilutive stock options 1,753,869 3,100,328 2,264,711  
Common stock, shares authorized 320,000,000 320,000,000    
Preferred stock, shares authorized 2,000,000      
Preferred stock, par or stated value Per Share $ 1      
Purchases of shares under employee stock plans $ (5.5) $ (4.9) $ (7.7)  
Common stock repurchase program, authorized amount       $ 300.0
Purchase of common stock for treasury $ (42.3) (61.9) (92.6)  
Series A junior participating preferred stock [Member]        
Earnings Per Share [Line Items]        
Preferred stock, shares authorized 150,000      
Series B junior participating preferred stock [Member]        
Earnings Per Share [Line Items]        
Preferred stock, shares authorized 500,000      
Treasury Stock [Member]        
Earnings Per Share [Line Items]        
Purchase of common stock for treasury $ (42.3) $ (61.9) $ (92.6)