CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Net revenues	$ 1,299.1	$ 1,385.6	$ 4,640.5	$ 4,754.6
Cost of sales	466.7	487.8	1,599.3	1,690.8
Gross profit	832.4	897.8	3,041.2	3,063.8
Selling, general and administrative expenses	777.5	770.6	2,382.8	2,371.4
Amortization expense	45.9	48.5	141.3	145.4
Restructuring costs	76.6	0.9	78.7	35.0
Asset impairment charges	212.8	0.0	212.8	0.0
Operating (loss) income	(280.4)	77.8	225.6	512.0
Interest expense, net	47.9	60.4	164.1	190.3
Other expense, net	132.3	14.0	332.8	9.8
(Loss) Income before income taxes	(460.6)	3.4	(271.3)	311.9
(Benefit) provision for income taxes	(58.4)	(5.4)	9.6	106.9
Net (loss) income	(402.2)	8.8	(280.9)	205.0
Net income attributable to noncontrolling interests	2.0	2.4	5.7	4.0
Net income attributable to redeemable noncontrolling interests	1.5	2.6	12.5	14.7
Net (loss) income attributable to Coty Inc.	(405.7)	3.8	(299.1)	186.3
Amounts attributable to Coty Inc.
Net (loss) income attributable to Coty Inc.	(405.7)	3.8	(299.1)	186.3
Convertible Series B Preferred Stock dividends	(3.3)	(3.3)	(9.9)	(9.9)
Net (loss) income attributable to common stockholders	(409.0)	0.5	(309.0)	176.4
Net (loss) income attributable to common stockholders	$ (409.0)	$ 0.5	$ (309.0)	$ 176.4
Earnings per common share:
Earnings per common share - basic (in dollars per share)	$ (0.47)	$ 0	$ (0.36)	$ 0.20
Earnings per common share - diluted (in dollars per share)	$ (0.47)	$ 0	$ (0.36)	$ 0.20
Weighted-average common shares outstanding:
Basic (in shares)	872.1	883.1	870.4	876.7
Diluted (in shares)	872.1	892.0	870.4	886.1