CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 56.3	$ (10.1)
Other comprehensive (loss) income:
Foreign currency translation adjustment	(122.6)	(48.9)
Net unrealized derivative (loss) gain on cash flow hedges, net of taxes of $0.2 and $(0.3), during the three months ended, respectively	(1.2)
Net unrealized derivative (loss) gain on cash flow hedges, net of taxes of $0.2 and $(0.3), during the three months ended, respectively		1.0
Pension and other post-employment benefits adjustment, net of tax of $0.0 and $0.5 during the three months ended, respectively	(0.8)	0.1
Total other comprehensive loss, net of tax	(124.6)	(47.8)
Comprehensive loss	(68.3)	(57.9)
Comprehensive income (loss) attributable to noncontrolling interests:
Net income	2.8	1.2
Foreign currency translation adjustment	0.0	0.2
Total comprehensive income attributable to noncontrolling interests	2.8	1.4
Comprehensive income attributable to redeemable noncontrolling interests:
Net income attributable to redeemable noncontrolling interests	1.2	0.8
Comprehensive loss attributable to Coty Inc.	$ (72.3)	$ (60.1)