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, 2019
Dec. 31, 2018
Dec. 31, 2017
Business Acquisition [Line Items]      
Identifiable intangible assets $ 92.0 $ 50.9  
Goodwill 4,308.3 4,129.7 $ 4,184.0
2019 Acquisitions      
Business Acquisition [Line Items]      
Cash 5.5    
Accounts receivable and other current assets 5.5    
Other assets 1.5    
Identifiable intangible assets 92.0    
Goodwill 197.4    
Total assets acquired 301.9    
Other current liabilities (5.1)    
Other liabilities (18.4)    
Non-controlling interest 0.0    
Net assets acquired $ 278.4    
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