CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net revenues	$ 2,238.3	$ 1,080.2
Cost of sales	874.3	444.8
Gross profit	1,364.0	635.4
Selling, general and administrative expenses	1,191.8	478.9
Amortization expense	78.2	21.2
Restructuring costs	11.2	7.4
Acquisition-related costs	54.1	81.5
Operating income	28.7	46.4
Interest expense, net	66.4	40.4
Other expense, net	3.7	1.3
(Loss) income before income taxes	(41.4)	4.7
Benefit for income taxes	(25.3)	(5.1)
Net (loss) income	(16.1)	9.8
Net (loss) income attributable to noncontrolling interests	(2.2)	8.2
Net income attributable to redeemable noncontrolling interests	5.8	1.6
Net (loss) income attributable to Coty Inc.	$ (19.7)	$ 0.0
Net (loss) income attributable to Coty Inc. per common share:
Basic (in dollars per share)	$ (0.03)	$ 0.00
Diluted (in dollars per share)	$ (0.03)	$ 0.00
Weighted-average common shares outstanding:
Basic (in shares)	748.6	336.3
Diluted (in shares)	748.6	336.3