CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 74.0	$ 90.7
Other comprehensive income (loss):
Foreign currency translation adjustment	13.7	120.6
Net unrealized derivative loss on cash flow hedges, net of taxes of $0.0 and $0.4 during the three months ended, respectively	(0.1)	(0.8)
Pension and other post-employment benefits adjustment, net of tax of $2.4 and $(0.4) during the three months ended, respectively	1.2	0.9
Total other comprehensive income, net of tax	14.8	120.7
Comprehensive income	88.8	211.4
Comprehensive income attributable to noncontrolling interests:
Net income	2.1	2.1
Foreign currency translation adjustment	(0.1)	0.0
Total comprehensive income attributable to noncontrolling interests	2.0	2.1
Comprehensive income attributable to redeemable noncontrolling interests:
Net income	4.0	5.7
Foreign currency translation adjustment	0.1	0.1
Total comprehensive income attributable to redeemable noncontrolling interests	4.1	5.8
Comprehensive income attributable to Coty Inc.	$ 82.7	$ 203.5