RESTRUCTURING, INTEGRATION AND OTHER COSTS (Details 2) - USD ($) $ in Millions	3 Months Ended				6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Restructuring reserve
Costs incurred and/or charged to expense	$ 75.6			$ 61.7		$ 274.0	$ 337.4
B&L
Restructuring reserve
Balance at the beginning of the period	6.7	$ 10.6	$ 23.3		$ 23.3	23.3	100.3	$ 100.3	$ 0.0
Costs incurred and/or charged to expense	0.8	(0.4)	3.9				64.0	69.7	234.1
Cash payments	(1.1)	(3.8)	(13.9)				(123.0)	(135.6)	(138.4)
Non-cash adjustments	(0.3)	0.3	(2.7)					(11.1)	4.6
Balance at the end of the period	6.1	6.7	10.6		6.7	6.1		23.3	100.3
B&L | Employee Termination Costs - Severance and Related Benefits
Restructuring reserve
Balance at the beginning of the period	3.9	7.8	18.9		18.9	18.9	89.3	89.3	0.0
Costs incurred and/or charged to expense	0.4	(0.5)	3.0					46.0	155.7
Cash payments	(1.1)	(3.7)	(12.6)					(110.7)	(77.8)
Non-cash adjustments	(0.2)	0.3	(1.5)					(5.7)	11.4
Balance at the end of the period	3.0	3.9	7.8		3.9	3.0		18.9	89.3
B&L | Employee Termination Costs - Share-Based Compensation
Restructuring reserve
Balance at the beginning of the period	0.0	0.0	0.0		0.0	0.0	0.0	0.0	0.0
Costs incurred and/or charged to expense	0.0	0.0	0.0					0.0	52.8
Cash payments	0.0	0.0	0.0					0.0	(52.8)
Non-cash adjustments	0.0	0.0	0.0					0.0	0.0
Balance at the end of the period	0.0	0.0	0.0		0.0	0.0		0.0	0.0
B&L | IPR&D Termination Costs
Restructuring reserve
Balance at the beginning of the period	0.0	0.0	0.0		0.0	0.0	0.0	0.0	0.0
Costs incurred and/or charged to expense	0.0	0.0	0.0					0.0	0.0
Cash payments	0.0	0.0	0.0					0.0	0.0
Non-cash adjustments	0.0	0.0	0.0					0.0	0.0
Balance at the end of the period	0.0	0.0	0.0		0.0	0.0		0.0	0.0
B&L | Contract Termination, Facility Closure and Other Costs
Restructuring reserve
Balance at the beginning of the period	2.8	2.8	4.4		4.4	4.4	$ 11.0	11.0	0.0
Costs incurred and/or charged to expense	0.4	0.1	0.9					23.7	25.6
Cash payments	0.0	(0.1)	(1.3)					(24.9)	(7.8)
Non-cash adjustments	(0.1)	0.0	(1.2)					(5.4)	(6.8)
Balance at the end of the period	3.1	2.8	2.8		2.8	3.1		4.4	$ 11.0
Salix
Restructuring reserve
Balance at the beginning of the period	58.9		0.0		0.0	0.0
Costs incurred and/or charged to expense	5.5				82.4
Cash payments	(21.0)				(25.7)
Non-cash adjustments					2.2
Balance at the end of the period	43.4	58.9			58.9	43.4		0.0
Salix | Employee Termination Costs - Severance and Related Benefits
Restructuring reserve
Balance at the beginning of the period	58.9		0.0		0.0	0.0
Costs incurred and/or charged to expense	4.8				82.4
Cash payments	(21.0)				(25.7)
Non-cash adjustments					2.2
Balance at the end of the period	42.7	58.9			58.9	42.7		0.0
Salix | IPR&D Termination Costs
Restructuring reserve
Balance at the beginning of the period	0.0		0.0		0.0	0.0
Costs incurred and/or charged to expense	0.0				0.0
Cash payments	0.0				0.0
Non-cash adjustments					0.0
Balance at the end of the period	0.0	0.0			0.0	0.0		0.0
Salix | Contract Termination, Facility Closure and Other Costs
Restructuring reserve
Balance at the beginning of the period	0.0		$ 0.0		0.0	0.0
Costs incurred and/or charged to expense	0.7				0.0
Cash payments	0.0				0.0
Non-cash adjustments					0.0
Balance at the end of the period	$ 0.7	$ 0.0			$ 0.0	$ 0.7		$ 0.0