CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Millions, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Total Coty Inc. Stockholders’ Equity	Total Coty Inc. Stockholders’ Equity Cumulative Effect, Period of Adoption, Adjustment	Total Coty Inc. Stockholders’ Equity Cumulative Effect, Period of Adoption, Adjusted Balance	Preferred Stock	Preferred Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjusted Balance	Treasury Stock	Treasury Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Noncontrolling Interest	Noncontrolling Interest Cumulative Effect, Period of Adoption, Adjusted Balance
Accounting Standards Update [Extensible List]	Accounting Standards Update 2016-13 [Member]
Beginning balance (in shares) at Jun. 30, 2019							9.4	9.4
Beginning balance at Jun. 30, 2019	$ 4,593.4	$ (0.7)	$ 4,592.7	$ 4,586.9	$ (0.7)	$ 4,586.2	$ 0.1	$ 0.1	$ 8.1	$ 8.1	$ 10,620.5	$ 10,620.5	$ (4,541.2)	$ (0.7)	$ (4,541.9)	$ (58.8)	$ (58.8)	$ (1,441.8)	$ (1,441.8)	$ 6.5	$ 6.5
Beginning balance (in shares) at Jun. 30, 2019									819.2	819.2
Beginning balance (in shares) at Jun. 30, 2019																		65.0	65.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cancellation of stock (in shares)							(7.9)
Cancellation of stock	(0.7)			(0.7)			$ (0.1)				(0.6)
Purchase of Class A Common Stock (in shares)																		0.5
Purchase of Class A Common Stock	(4.5)			(4.5)														$ (4.5)
Issuance of Restricted Stock (in shares)									2.0
Exercise of employee stock options and restricted stock units (in shares)									1.4
Exercise of employee stock options and restricted stock units	2.7			2.7							2.7
Share based compensation expense	31.8			31.8							31.8
Dividends declared - Cash and Other	(196.3)			(196.3)							(196.3)
Shares withheld for employee taxes	(5.3)			(5.3)							(5.3)
Dividends declared - Stock	(88.9)			(88.9)							(88.9)
Dividends settled in Shares of Class A Common Stock (in shares)									8.0
Non-cash Common Stock dividend	89.1			89.1					$ 0.2		88.9
Dividends Accrued - Convertible Series B Preferred Stock	(6.5)			(6.5)							(6.5)
Net income (loss)	(1,002.0)			(1,006.7)									(1,006.7)							4.7
Other comprehensive income	(397.3)			(397.4)												(397.4)				0.1
Additional redeemable noncontrolling interests due to employee grants and other adjustments	6.2			6.2							6.2
Adjustments related to the sale of business	212.9																			212.9
Adjustment of redeemable noncontrolling interests to redemption value	(5.1)			(5.1)							(5.1)
Ending balance (in shares) at Jun. 30, 2020							1.5	1.5
Ending balance at Jun. 30, 2020	3,228.8	$ (5.7)	3,223.1	3,004.6	$ (5.7)	$ 2,998.9	$ 0.0	$ 0.0	$ 8.3	$ 8.3	10,447.4	$ 10,447.4	(5,548.6)	$ (5.7)	$ (5,554.3)	(456.2)	$ (456.2)	$ (1,446.3)	$ (1,446.3)	224.2	$ 224.2
Ending balance (in shares) at Jun. 30, 2020									830.6	830.6
Ending balance (in shares) at Jun. 30, 2020																		65.5	65.5
Beginning balance, redeemable noncontrolling interest at Jun. 30, 2019	451.8		451.8
Beginning balance, convertible stock at Jun. 30, 2019	0.0		0.0
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Issuance of Preferred Stock	709.3
Dividends Accrued - Convertible Series B Preferred Stock	6.5
Net income (loss)	(0.7)
Distribution to noncontrolling interests, net	(16.7)
Additional redeemable noncontrolling interests due to employee grants and other adjustments	(360.4)
Adjustment of redeemable noncontrolling interests to redemption value	5.1
Ending balance, redeemable noncontrolling interest at Jun. 30, 2020	79.1		79.1
Ending balance, convertible stock at Jun. 30, 2020	$ 715.8		$ 715.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reacquired Class A Common Stock for employee taxes (in shares)	0.1																	0.1
Cancellation of stock (in shares)																		(0.7)
Exercise of employee stock options and restricted stock units (in shares)									1.7
Share based compensation expense	$ 27.4			27.4							27.4
Equity Investment contribution for share-based compensation	2.3			2.3							2.3
Changes in dividends accrued	1.2			1.2							1.2
Shares withheld for employee taxes	(5.0)			(5.0)							(5.0)
Dividends declared - Stock	0.0
Deemed Dividends- Convertible Series B Preferred Stock	(10.5)			(10.5)							(10.5)
Dividends Accrued - Convertible Series B Preferred Stock	(67.6)			(67.6)							(67.6)
Dividends Paid- Convertible Series B Preferred Stock	(24.2)			(24.2)							(24.2)
Net income (loss)	(217.4)			(201.3)									(201.3)							(16.1)
Other comprehensive income	134.2			134.3												134.3				(0.1)
Distribution to noncontrolling interests, net	(6.5)																			(6.5)
Adjustment of redeemable noncontrolling interests to redemption value	$ 5.2			5.2							5.2
Ending balance (in shares) at Jun. 30, 2021	1.5						1.5
Ending balance at Jun. 30, 2021	$ 3,062.2			2,860.7			$ 0.0		$ 8.3		10,376.2		(5,755.6)			(321.9)		$ (1,446.3)		201.5
Ending balance (in shares) at Jun. 30, 2021	766.0								832.3
Ending balance (in shares) at Jun. 30, 2021	66.3																	66.3
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Issuance of Preferred Stock	$ 242.4
Dividends Accrued - Convertible Series B Preferred Stock	67.6
Deemed Dividends- Convertible Series B Preferred Stock	10.5
Net income (loss)	12.3
Distribution to noncontrolling interests, net	(2.1)
Adjustment of redeemable noncontrolling interests to redemption value	(5.2)
Ending balance, redeemable noncontrolling interest at Jun. 30, 2021	84.1
Ending balance, convertible stock at Jun. 30, 2021	1,036.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of employee stock options and restricted stock units (in shares)									3.3
Share based compensation expense	195.4			195.4							195.4
Dividends declared - Cash and Other	0.8
Equity Investment contribution for share-based compensation	0.7			0.7							0.7
Changes in dividends accrued	0.8			0.8							0.8
Conversion of convertible series B preferred stock (in shares)									69.9
Conversion of Convertible Series B Preferred Stock	429.5			429.5					$ 0.7		428.8
Shares withheld for employee taxes	(12.7)			(12.7)							(12.7)
Dividends declared - Stock	0.0
Deemed Dividends- Convertible Series B Preferred Stock	(163.1)			(163.1)							(163.1)
Dividends Accrued - Convertible Series B Preferred Stock	(35.2)			(35.2)							(35.2)
Net income (loss)	254.4			259.5									259.5							(5.1)
Other comprehensive income	(396.9)															(396.0)
Other comprehensive income	(396.5)			(396.0)												(396.0)				(0.5)
Distribution to noncontrolling interests, net	(4.6)																			(4.6)
Adjustment of redeemable noncontrolling interests to redemption value	$ 14.9			14.9							14.9
Ending balance (in shares) at Jun. 30, 2022	1.5						1.5
Ending balance at Jun. 30, 2022	$ 3,345.8			$ 3,154.5			$ 0.0		$ 9.0		$ 10,805.8		$ (5,496.1)			$ (717.9)		$ (1,446.3)		$ 191.3
Ending balance (in shares) at Jun. 30, 2022	839.2								905.5
Ending balance (in shares) at Jun. 30, 2022	66.3																	66.3
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Conversion of Convertible Series B Preferred Stock	$ (429.5)
Exchange Transaction	(606.9)
Dividends Accrued - Convertible Series B Preferred Stock	35.2
Deemed Dividends- Convertible Series B Preferred Stock	163.1
Dividends Paid- Convertible Series B Preferred Stock	(55.8)
Net income (loss)	13.3
Other comprehensive loss	(0.4)
Distribution to noncontrolling interests, net	(12.3)
Adjustment of redeemable noncontrolling interests to redemption value	(14.9)
Ending balance, redeemable noncontrolling interest at Jun. 30, 2022	69.8
Ending balance, convertible stock at Jun. 30, 2022	$ 142.4