SEGMENT INFORMATION (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($) segment	Mar. 31, 2015 USD ($)
Segment reporting information
Number of operating segments | segment	2
Number of reportable segments | segment	2
Total revenues	$ 2,371.6	$ 2,170.1
Segment profit	(372.9)	98.5
Restructuring, integration and other costs	(38.0)	(55.0)
Acquisition-related costs	(1.8)	(13.9)
Acquisition-related contingent consideration	(2.4)	(7.1)
Other expense	23.1	6.1
Operating income	66.2	571.0
Interest income	0.9	0.9
Interest expense	(426.6)	(297.8)
Loss on extinguishment of debt	0.0	(20.0)
Foreign exchange and other	(6.2)	(71.1)
(Loss) income before provision for income taxes	(365.7)	183.0
Share-based compensation expense	63.5	35.0
Operating Segment
Segment reporting information
Total revenues	2,371.6	2,170.1
Segment profit	277.9	722.3
Corporate
Segment reporting information
Share-based compensation expense	50.0	24.0
Segment Reconciling Items
Segment reporting information
Segment profit	(146.4)	(69.2)
Restructuring, integration and other costs	(38.0)	(55.0)
Acquisition-related costs	(1.8)	(13.9)
Acquisition-related contingent consideration	(2.4)	(7.1)
Other expense	(23.1)	(6.1)
Developed Markets | 2014 and 2015 Acquisitions
Segment reporting information
Total revenues	513.0	513.0
Developed Markets | Operating Segment
Segment reporting information
Total revenues	1,929.9	1,743.6
Segment profit	259.6	667.7
Emerging Markets | 2014 and 2015 Acquisitions
Segment reporting information
Total revenues	59.0	59.0
Emerging Markets | Operating Segment
Segment reporting information
Total revenues	441.7	426.5
Segment profit	18.3	54.6
Fair Value Adjustment to Inventory and Identifiable Intangible Assets | Developed Markets
Segment reporting information
Segment profit	637.0	314.0
Fair Value Adjustment to Inventory and Identifiable Intangible Assets | Emerging Markets
Segment reporting information
Segment profit	$ 86.0	$ 76.0