(LOSS) EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share [Abstract]
Net (loss) income attributable to Valeant Pharmaceuticals International, Inc.	$ (385.9)	$ 49.5	$ (53.0)	$ 97.7	$ 512.5	$ 265.0	$ 125.8	$ (22.6)	$ 44.7	$ 103.2	$ 94.2	$ 368.2	$ (291.7)	$ 880.7	$ (866.1)
Basic weighted-average number of common shares outstanding													342.7	335.4	321.0
Dilutive effect of stock options and RSUs													0.0	6.1	0.0
Diluted weighted-average number of common shares outstanding													342.7	341.5	321.0
(Loss) earnings per share attributable to Valeant Pharmaceuticals International, Inc.:
Earnings per share, basic (in dollars per share)	$ (1.12)	$ 0.14	$ (0.15)	$ 0.29	$ 1.53	$ 0.79	$ 0.38	$ (0.07)	$ 0.13	$ 0.31	$ 0.28	$ 1.10	$ (0.85)	$ 2.63	$ (2.70)
Earnings per share, diluted (in dollars per share)	$ (1.12)	$ 0.14	$ (0.15)	$ 0.28	$ 1.50	$ 0.78	$ 0.37	$ (0.07)	$ 0.13	$ 0.30	$ 0.27	$ 1.08	$ (0.85)	$ 2.58	$ (2.70)