Annual report pursuant to Section 13 and 15(d)

ACQUISITIONS AND INVESTMENTS (Schedule Assets and Liabilities) (Details)

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ACQUISITIONS AND INVESTMENTS (Schedule Assets and Liabilities) (Details) - USD ($)
$ in Millions
Mar. 10, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Business Acquisition [Line Items]        
Identifiable intangible assets   $ 51.0 $ 681.0  
Goodwill   4,184.0 3,974.3 $ 2,571.0
2017 Acquisitions        
Business Acquisition [Line Items]        
Cash   4.3    
Accounts receivable and other current assets   3.2    
Other assets   0.4    
Identifiable intangible assets   51.0    
Goodwill   92.4    
Total assets acquired   151.3    
Debt   0.0    
Other current liabilities   (5.1)    
Other liabilities   (10.9)    
Non-controlling interest   0.0    
Net assets acquired   $ 135.3    
2016 Acquisitions        
Business Acquisition [Line Items]        
Cash     23.7  
Accounts receivable and other current assets     39.6  
Other assets     42.0  
Identifiable intangible assets     681.0  
Goodwill     1,456.3  
Total assets acquired     2,242.6  
Debt     (189.5)  
Other current liabilities     (40.2)  
Other liabilities     (178.1)  
Non-controlling interest     (11.7)  
Net assets acquired     $ 1,823.1  
Veda        
Business Acquisition [Line Items]        
Debt, extinguished $ 191.0