CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 52.1	$ 97.6	$ 61.9	$ 230.7
Other comprehensive income (loss):
Foreign currency translation adjustment	(90.4)	(1.6)	(96.3)	(18.8)
Net unrealized derivative gains on cash flow hedges, net of taxes of $(8.8) and $0.1 and $(8.7) and $(0.7) during the three and six months ended, respectively	33.4	2.8	41.9	7.3
Pension and other post-employment benefits (losses) adjustment, net of tax of ($5.0) and nil, and ($5.8) and $0.1 during the three and six months ended, respectively	4.9	0.0	10.1	0.2
Total other comprehensive (loss) income, net of tax	(52.1)	1.2	(44.3)	(11.3)
Comprehensive income	0.0	98.8	17.6	219.4
Comprehensive income attributable to noncontrolling interests:
Net income	2.5	5.3	10.7	9.7
Foreign currency translation adjustment	(0.5)	0.2	(0.5)	(0.3)
Total comprehensive income attributable to noncontrolling interests	2.0	5.5	10.2	9.4
Comprehensive income attributable to redeemable noncontrolling interests:
Net income	2.8	3.3	4.4	6.3
Foreign currency translation adjustment	0.0	(0.1)	0.0	0.0
Total comprehensive income attributable to redeemable noncontrolling interests	2.8	3.2	4.4	6.3
Comprehensive (loss) income attributable to Coty Inc.	$ (4.8)	$ 90.1	$ 3.0	$ 203.7