GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 164.5	$ 76.7	$ 81.7
Finite-Lived Intangible Assets, Future Amortization Expense
Estimated amortization expense, 2013	174.4
Estimated amortization expense, 2014	167.2
Estimated amortization expense, 2015	156.0
Estimated amortization expense, 2016	149.2
Estimated amortization expense, 2017	142.4
Estimated amortization expense, Thereafter	2,017.3
Amount paid for diagnostic testing technology licensing rights	$ 0.0	$ 0.0	$ 0.0