RESTRUCTURING, INTEGRATION AND OTHER COSTS - Narrative (Details) $ in Millions	3 Months Ended			6 Months Ended		12 Months Ended		23 Months Ended
	Jun. 30, 2015 USD ($) employee	Mar. 31, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) employee	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Jun. 30, 2015 USD ($)
Cost-rationalization and integration initiatives
Acquisition-related costs	$ 9.5		$ 0.6	$ 19.3	$ 2.1
Restructuring, integration and other costs	143.4		$ 142.1	198.4	275.7
B&L
Cost-rationalization and integration initiatives
Restructuring and acquisition-related costs since acquisition date								$ 577.0
Restructuring expenses related to acquisition								307.0
Integration expenses related to acquisition				$ 8.0	100.0			257.0
Acquisition-related costs								13.0
Approximate number of employees expected to be terminated | employee				3,000
Restructuring, integration and other costs	(0.4)	$ 3.9			52.0	$ 69.7	$ 234.1
Payments for integration costs				$ 10.0	112.0
Restructuring and Related Cost, Incurred Cost								8.0
Payments for Restructuring	3.8	13.9			82.0	135.6	138.4
B&L | Maximum
Cost-rationalization and integration initiatives
Restructuring and acquisition-related costs since acquisition date				600.0
Salix
Cost-rationalization and integration initiatives
Restructuring and acquisition-related costs since acquisition date	124.0
Restructuring expenses related to acquisition	82.0
Integration expenses related to acquisition	29.0
Acquisition-related costs	$ 13.0			13.0
Approximate number of employees expected to be terminated | employee	400
Restructuring, integration and other costs				82.4
Payments for integration costs	$ 16.0
Payments for Restructuring				25.7
Salix | Maximum
Cost-rationalization and integration initiatives
Restructuring and acquisition-related costs since acquisition date				300.0
Employee Termination Costs - Share-Based Compensation | B&L
Cost-rationalization and integration initiatives
Restructuring, integration and other costs	0.0	0.0				0.0	52.8
Payments for Restructuring	0.0	$ 0.0				$ 0.0	$ 52.8
Other Restructuring, Integration-related and Other Costs
Cost-rationalization and integration initiatives
Restructuring costs				24.0	12.0
Restructuring and Related Cost, Incurred Cost				79.0	68.0
Restructuring Costs Integration Consulting Duplicate Labor Transition Service and Other				52.0	46.0
Business Exit Costs				2.0	4.0
Other Restructuring Costs				1.0	6.0
Payments for Restructuring				54.0	$ 58.0
Waterford, Ireland | B&L
Cost-rationalization and integration initiatives
Restructuring costs								$ 52.0
Restructuring cost adjustment	$ 4.0
Waterford, Ireland | Employee Termination Costs | B&L
Cost-rationalization and integration initiatives
Payments for integration costs				$ 19.0