CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net revenues	$ 1,578.2	$ 1,415.6	$ 2,949.9	$ 2,539.7
Cost of sales	561.1	584.0	1,065.9	1,048.9
Gross profit	1,017.1	831.6	1,884.0	1,490.8
Selling, general and administrative expenses	718.9	641.5	1,495.2	1,224.9
Amortization expense	51.4	61.8	108.4	127.2
Restructuring costs	(4.1)	59.6	8.3	89.7
Acquisition- and divestiture-related costs	6.9	51.7	10.9	98.0
Operating income (loss)	244.0	17.0	261.2	(49.0)
Interest expense, net	60.9	59.2	120.7	121.3
Other (income) expense, net	(126.2)	17.6	(512.3)	11.8
Income (loss) from continuing operations before income taxes	309.3	(59.8)	652.8	(182.1)
Provision (benefit) for income taxes on continuing operations	49.4	(40.8)	164.0	(285.7)
Net income (loss) from continuing operations	259.9	(19.0)	488.8	103.6
Net income (loss) from discontinued operations	3.8	(235.6)	3.8	(130.9)
Net income (loss)	263.7	(254.6)	492.6	(27.3)
Net loss attributable to noncontrolling interests	(0.9)	(2.5)	(1.4)	(2.1)
Net income attributable to redeemable noncontrolling interests	3.2	0.2	6.6	5.7
Net income (loss) attributable to Coty Inc.	261.4	(252.3)	487.4	(30.9)
Amounts attributable to Coty Inc.
Net income from continuing operations	257.6	(16.7)	483.6	100.0
Convertible Series B Preferred Stock dividends	(68.7)	(23.1)	(191.7)	(43.9)
Net income from continuing operations attributable to common stockholders	188.9	(39.8)	291.9	56.1
Net income from discontinued operations	3.8	(235.6)	3.8	(130.9)
Net income attributable to common stockholders	$ 192.7	$ (275.4)	$ 295.7	$ (74.8)
Earnings per common share:
Earnings from continuing operations per common share - basic (in dollars per share)	$ 0.23	$ (0.05)	$ 0.36	$ 0.07
Earnings from continuing operations per common share - diluted (in dollars per share)	0.23	(0.05)	0.36	0.07
Earnings from discontinued operations - basic (in dollars per share)	0	(0.31)	0	(0.17)
Earnings from discontinued operations - diluted (in dollars per share)	0	(0.31)	0	(0.17)
Earnings per common share - basic (in dollars per share)	0.23	(0.36)	0.36	(0.10)
Earnings per common share - diluted (in dollars per share)	$ 0.23	$ (0.36)	$ 0.36	$ (0.10)
Weighted-average common shares outstanding:
Basic (in shares)	829.1	764.6	803.3	764.3
Diluted (in shares)	842.7	764.6	815.1	926.6