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
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Business Acquisition [Line Items]      
Identifiable intangible assets $ 50.9 $ 51.0  
Goodwill 4,129.7 4,184.0 $ 3,974.3
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  
Other current liabilities   (5.1)  
Other liabilities   (10.9)  
Non-controlling interest   0.0  
Net assets acquired   $ 135.3  
2018 Acquisitions      
Business Acquisition [Line Items]      
Cash 1.6    
Accounts receivable and other current assets 4.4    
Other assets 0.3    
Identifiable intangible assets 50.9    
Goodwill 89.3    
Total assets acquired 146.5    
Other current liabilities (2.9)    
Other liabilities (3.8)    
Non-controlling interest (1.8)    
Net assets acquired $ 138.0