ACQUISITIONS AND DISPOSITIONS - Acquisition Summary (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components of the aggregate purchase prices of the completed acquisitions
Net tangible assets acquired and equity method investments	$ 46.9	$ 103.7	$ 18.2
Identifiable intangible assets
Customer relationships	2.6	65.6	32.0
Patents		6.7
Trademarks		13.5	3.4
Non-compete agreements		4.2
Other technology	1.1	8.7	4.5
Total intangible assets	3.7	98.7	39.9
Goodwill	7.3	136.9	32.9
Total aggregate purchase price	57.9	339.3	91.0
Acquisition related liabilities and contingent consideration	(27.1)	60.5	(12.3)
Net cash paid for acquisitions, including acquisition related liabilities and contingent consideration	$ 85.0	$ 278.8	$ 103.3
Weighted average useful lives of identifiable intangible assets acquired	4 years	10 years	10 years