RESTRUCTURING, INTEGRATION AND OTHER COSTS (Details 2) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Restructuring reserve
Costs incurred and/or charged to expense	$ 38.0	$ 55.0
Salix
Restructuring reserve
Balance at the beginning of the period	35.6	0.0	$ 0.0
Costs incurred and/or charged to expense	8.4		91.5
Cash payments	(11.4)		(58.1)
Non-cash adjustments			2.2
Balance at the end of the period	32.6		35.6
Salix | Employee Termination Costs - Severance and Related Benefits
Restructuring reserve
Balance at the beginning of the period	35.0	0.0	0.0
Costs incurred and/or charged to expense	0.7		90.6
Cash payments	(11.1)		(57.8)
Non-cash adjustments			2.2
Balance at the end of the period	24.6		35.0
Salix | Contract Termination, Facility Closure and Other Costs
Restructuring reserve
Balance at the beginning of the period	0.6	$ 0.0	0.0
Costs incurred and/or charged to expense	7.7		0.9
Cash payments	(0.3)		(0.3)
Non-cash adjustments			0.0
Balance at the end of the period	$ 8.0		$ 0.6