CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Net revenues	$ 5,304.4	$ 4,629.9	$ 4,717.8
Cost of sales	1,935.2	1,861.7	1,991.2
Gross profit	3,369.2	2,768.2	2,726.6
Selling, general and administrative expenses	2,881.3	2,363.2	3,120.0
Amortization expense	207.4	251.2	233.1
Restructuring costs	(6.5)	63.6	130.2
Acquisition- and divestiture- related costs	14.7	138.8	157.3
Asset impairment charges	31.4	0.0	434.0
Gain on divestitures	0.0	0.0	(111.5)
Operating income (loss)	240.9	(48.6)	(1,236.5)
Interest expense, net	224.0	235.1	242.7
Other income, net	(409.9)	(43.9)	(11.6)
Income (loss) from continuing operations before income taxes	426.8	(239.8)	(1,467.6)
Provision (benefit) for income taxes on continuing operations	164.8	(172.0)	(377.7)
Net income (loss) from continuing operations	262.0	(67.8)	(1,089.9)
Net income (loss) from discontinued operations	5.7	(137.3)	87.2
Net income (loss)	267.7	(205.1)	(1,002.7)
Net (loss) income attributable to noncontrolling interests	(5.1)	(16.1)	4.7
Net income (loss) attributable to redeemable noncontrolling interests	13.3	12.3	(0.7)
Net income (loss) attributable to Coty Inc.	259.5	(201.3)	(1,006.7)
Amounts attributable to Coty Inc.
Net income (loss) from continuing operations	253.8	(64.0)	(1,093.9)
Convertible Series B Preferred Stock dividends	(198.3)	(102.3)	(6.5)
Net income (loss) from continuing operations attributable to common stockholders	55.5	(166.3)	(1,100.4)
Net income (loss) from discontinued operations, net of tax	5.7	(137.3)	87.2
Net income (loss) from continuing operations attributable to common stockholders	$ 61.2	$ (303.6)	$ (1,013.2)
Earnings (losses) per common share
Loss from continuing operations per common share - basic (in dollars per share)	$ 0.07	$ (0.22)	$ (1.45)
Loss from continuing operations per common share - diluted (in dollars per share)	0.07	(0.22)	(1.45)
(Loss) earnings from discontinued operations - basic (in dollars per share)	0.01	(0.18)	0.12
(Loss) earnings from discontinued operations - diluted (in dollars per share)	0.01	(0.18)	0.12
Loss per common share - basic (in dollars per share)	0.08	(0.40)	(1.33)
Loss per common share - diluted (in dollars per share)	$ 0.08	$ (0.40)	$ (1.33)
Weighted-average common shares outstanding:
Basic (in shares)	820.6	764.8	759.1
Diluted (in shares)	834.1	764.8	759.1