CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net revenues	$ 4,349.1	$ 4,395.2	$ 4,551.6
Cost of sales	1,746.0	1,757.0	1,865.7
Gross profit	2,603.1	2,638.2	2,685.9
Selling, general and administrative expenses	2,027.8	2,066.1	2,219.6
Amortization expense	79.5	74.7	85.7
Restructuring costs	86.9	75.4	37.3
Acquisition-related costs	174.0	34.1	0.7
Asset impairment charges	5.5	0.0	316.9
Gain on sale of assets	(24.8)	(7.2)	0.0
Operating income	254.2	395.1	25.7
Interest expense, net	81.9	73.0	68.5
Loss on early extinguishment of debt	3.1	88.8	0.0
Other expense, net	30.4	0.0	1.3
Income (loss) before income taxes	138.8	233.3	(44.1)
(Benefit) provision for income taxes	(40.4)	(26.1)	20.1
Net income (loss)	179.2	259.4	(64.2)
Net income attributable to noncontrolling interests	7.6	15.1	17.8
Net income attributable to redeemable noncontrolling interests	14.7	11.8	15.4
Net income (loss) attributable to Coty Inc.	$ 156.9	$ 232.5	$ (97.4)
Net income (loss) attributable to Coty Inc. per common share:
Basic (dollars per shares)	$ 0.45	$ 0.66	$ (0.26)
Diluted (dollars per shares)	$ 0.44	$ 0.64	$ (0.26)
Weighted-average common shares outstanding:
Basic (shares)	345.5	353.3	381.7
Diluted (shares)	354.2	362.9	381.7
Cash dividend declared per common share	$ 0.25	$ 0.2	$ 0.20