RESTRUCTURING AND OTHER COSTS - ADDITIONAL INFORMATION (Details) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Oct. 31, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) segment	Jun. 30, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring, incurred cost		$ 81.7	$ 3.6	$ 84.8	$ 7.7
Impairment of intangible assets		79.8
Number of operating groups (in segments) | segment				2
Net restructuring costs
Restructuring Cost and Reserve [Line Items]
Restructuring, incurred cost		1.5		$ 3.8
Severance
Restructuring Cost and Reserve [Line Items]
Restructuring plan, implementation period (in years)	2 years
Severance | Maximum
Restructuring Cost and Reserve [Line Items]
Expected remaining cost	$ 97.0
Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Restructuring, incurred cost		$ 80.2		$ 81.0