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SUPPLEMENTAL FINANCIAL INFORMATION - Software, Equity Method Investment and Research and Development (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Oct. 31, 2016
Research and Development        
Research and development expense $ 93.4 $ 89.7 $ 91.9  
PragmatIC        
Equity Method Investment        
Interest of equity method investment       22.60%
Carrying value of investment 9.1 9.5    
Total software        
Capitalized software costs        
Software amortization expense from continuing operations 29.3 37.9 $ 37.6  
Total software | Other assets        
Capitalized software costs        
Cost 428.9 415.5    
Accumulated amortization (301.8) (297.9)    
Software, net $ 127.1 $ 117.6