CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Net revenues	$ 2,032.1	$ 950.7	$ 5,409.0	$ 3,273.5
Cost of sales	816.1	369.0	2,153.2	1,280.4
Gross profit	1,216.0	581.7	3,255.8	1,993.1
Selling, general and administrative expenses	1,092.4	494.2	2,741.5	1,493.9
Amortization expense	102.6	20.9	219.0	59.0
Restructuring costs	155.8	6.6	179.0	79.3
Acquisition-related costs	57.7	37.0	275.1	98.3
Asset impairment charges	0.0	0.0	0.0	5.5
Operating (loss) income	(192.5)	23.0	(158.8)	257.1
Interest expense, net	60.8	25.1	159.1	55.7
Loss on early extinguishment of debt	0.0	0.0	0.0	3.1
Other (income) expense, net	(0.5)	6.6	0.2	30.4
(Loss) income before income taxes	(252.8)	(8.7)	(318.1)	167.9
(Benefit) provision for income taxes	(93.4)	11.6	(220.6)	(42.5)
Net (loss) income	(159.4)	(20.3)	(97.5)	210.4
Net income attributable to noncontrolling interests	3.5	2.4	14.2	12.1
Net income attributable to redeemable noncontrolling interests	1.3	4.1	5.7	10.4
Net (loss) income attributable to Coty Inc.	$ (164.2)	$ (26.8)	$ (117.4)	$ 187.9
Net (loss) income attributable to Coty Inc. per common share:
Basic (in dollars per share)	$ (0.22)	$ (0.08)	$ (0.19)	$ 0.54
Diluted (in dollars per share)	$ (0.22)	$ (0.08)	$ (0.19)	$ 0.53
Weighted-average common shares outstanding:
Basic (in shares)	747.3	337.9	607.9	347.8
Diluted (in shares)	747.3	337.9	607.9	356.9
Cash dividend declared per common share (in dollars per share)	$ 0.125	$ 0	$ 0.525	$ 0.25