CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 186.0	$ 241.4	$ 196.2	$ 375.9
Other comprehensive income (loss):
Foreign currency translation adjustment	171.5	219.0	57.0	(45.1)
Net unrealized derivative gain (loss) on cash flow hedges, net of taxes of $0.3 and $1.2, and $(0.4) and $0.7 during the three and six months ended, respectively	(1.1)	(3.9)	0.4	(3.0)
Pension and other post-employment benefits adjustment, net of tax of $(0.4) and $(0.8), and $0.5 and $0.0 during the three and six months ended, respectively	0.6	1.5	(1.5)	(1.7)
Total other comprehensive income (loss), net of tax	171.0	216.6	55.9	(49.8)
Comprehensive income	357.0	458.0	252.1	326.1
Comprehensive income attributable to noncontrolling interests:
Net income (loss)	0.5	(1.4)	1.6	(1.4)
Foreign currency translation adjustment	0.0	0.3	0.0	0.3
Total comprehensive income (loss) attributable to noncontrolling interests	0.5	(1.1)	1.6	(1.1)
Comprehensive income attributable to redeemable noncontrolling interests:
Net income	4.6	4.5	12.1	10.4
Foreign currency translation adjustment	0.2	0.3	0.1	0.1
Total comprehensive income attributable to noncontrolling interests	4.8	4.8	12.2	10.5
Comprehensive income attributable to Coty Inc.	$ 351.7	$ 454.3	$ 238.3	$ 316.7