CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (16.1)	$ 9.8
Other comprehensive income:
Foreign currency translation adjustment	239.1	(5.9)
Net unrealized derivative gains on cash flow hedges, net of taxes of $(0.1) and $0.1 during the three months ended, respectively	(0.1)	8.5
Pension and other post-employment benefits adjustment, net of tax of $0.0 and $(0.8) during the three months ended, respectively	0.7	5.2
Total other comprehensive income, net of tax	239.7	7.8
Comprehensive income	223.6	17.6
Comprehensive (loss) income attributable to noncontrolling interests:
Net (loss) income	(2.2)	8.2
Foreign currency translation adjustment	0.6	0.0
Total comprehensive (loss) income attributable to noncontrolling interests	(1.6)	8.2
Comprehensive income attributable to redeemable noncontrolling interests:
Net income	5.8	1.6
Foreign currency translation adjustment	0.0	0.0
Total comprehensive income attributable to redeemable noncontrolling interests	5.8	1.6
Comprehensive income attributable to Coty Inc.	$ 219.4	$ 7.8