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BUSINESS ACQUISITIONS Business Acquisitions in the Aggregate (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Business Acquisition [Line Items]      
Revenues $ 2,791.2 $ 2,848.3  
Payments to Acquire Businesses, Net of Cash Acquired 47.3 $ 0.0  
Goodwill, Acquired During Period 22.1    
Goodwill 7,385.9   $ 7,360.3
Finite-lived Intangible Assets Acquired $ 24.8