CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net revenues	$ 1,669.9	$ 1,727.6	$ 3,341.4	$ 3,369.0
Cost of sales	555.7	603.5	1,132.6	1,203.0
Gross profit	1,114.2	1,124.1	2,208.8	2,166.0
Selling, general and administrative expenses	797.3	833.4	1,605.3	1,600.8
Amortization expense	47.3	48.3	95.4	96.9
Restructuring costs	1.4	5.7	2.1	34.1
Operating income	268.2	236.7	506.0	434.2
Interest expense, net	54.4	60.1	116.2	129.9
Other expense (income), net	157.2	(80.8)	200.5	(4.2)
Income before income taxes	56.6	257.4	189.3	308.5
Provision for income taxes	26.0	71.4	68.0	112.3
Net income	30.6	186.0	121.3	196.2
Net income attributable to noncontrolling interests	1.6	0.5	3.7	1.6
Net income attributable to redeemable noncontrolling interests	5.3	4.6	11.0	12.1
Net income attributable to Coty Inc.	23.7	180.9	106.6	182.5
Amounts attributable to Coty Inc.
Net income attributable to Coty Inc.	23.7	180.9	106.6	182.5
Convertible Series B Preferred Stock dividends	(3.3)	(3.3)	(6.6)	(6.6)
Net income attributable to common stockholders	20.4	177.6	100.0	175.9
Net income attributable to common stockholders	$ 20.4	$ 177.6	$ 100.0	$ 175.9
Earnings per common share:
Earnings per common share - basic (in dollars per share)	$ 0.02	$ 0.20	$ 0.11	$ 0.20
Earnings per common share - diluted (in dollars per share)	$ 0.02	$ 0.20	$ 0.11	$ 0.20
Weighted-average common shares outstanding:
Basic (in shares)	871.4	892.8	869.6	873.6
Diluted (in shares)	875.2	922.8	875.2	883.3