CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 267.7	$ (205.1)	$ (1,002.7)
Other comprehensive income (loss):
Foreign currency translation adjustment	(476.1)	130.3	(379.2)
Net unrealized derivative gain (loss) on cash flow hedges, net of taxes of $(6.0), $(8.4) and $9.1, respectively	19.8	27.5	(29.7)
Pension and other post-employment benefits, net of taxes of $(24.7), $9.0 and $(7.3), respectively	59.4	(23.6)	11.6
Total other comprehensive (loss) income, net of tax	(396.9)	134.2	(397.3)
Comprehensive loss	(129.2)	(70.9)	(1,400.0)
Comprehensive (loss) income attributable to noncontrolling interests:
Net (loss) income	(5.1)	(16.1)	4.7
Foreign currency translation adjustment	(0.5)	(0.1)	0.1
Total comprehensive (loss) income attributable to noncontrolling interests	(5.6)	(16.2)	4.8
Comprehensive income (loss) attributable to redeemable noncontrolling interests:
Net income (loss)	13.3	12.3	(0.7)
Foreign currency translation adjustment	(0.4)	0.0	0.0
Total comprehensive income (loss) attributable to redeemable noncontrolling interests	12.9	12.3	(0.7)
Comprehensive loss attributable to Coty Inc.	$ (136.5)	$ (67.0)	$ (1,404.1)