CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 55.0	$ 12.7	$ 547.6	$ (14.6)
Other comprehensive income (loss):
Foreign currency translation adjustment	35.4	(107.1)	(215.4)	22.0
Net unrealized derivative gain (loss) on cash flow hedges, net of taxes of $(0.8) and $(2.4), and $(4.2) and $(7.2) during the three and nine months ended, respectively	4.6	7.8	14.5	23.2
Pension and other post-employment benefits adjustment, net of tax of $(0.6) and $0.2, and $(0.6) and $4.5 during the three and nine months ended, respectively	(0.2)	(0.4)	2.1	(15.1)
Total other comprehensive income (loss), net of tax	39.8	(99.7)	(198.8)	30.1
Comprehensive income (loss)	94.8	(87.0)	348.8	15.5
Comprehensive income attributable to noncontrolling interests:
Net loss	(0.9)	(9.4)	(2.3)	(11.5)
Foreign currency translation adjustment	(0.1)	(0.2)	(0.4)	(0.1)
Total comprehensive loss attributable to noncontrolling interests	(1.0)	(9.6)	(2.7)	(11.6)
Comprehensive income attributable to redeemable noncontrolling interests:
Net income	2.3	6.5	8.9	12.2
Comprehensive income (loss) attributable to Coty Inc.	$ 93.5	$ (83.9)	$ 342.6	$ 14.9