CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Millions, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Class A	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 Class A	Common Stock Common Class A 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
Beginning balance (in shares) at Jun. 30, 2020								1.5	1.5
Beginning 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
Beginning balance (in shares) at Jun. 30, 2020										830.6	830.6
Beginning balance (in shares) at Jun. 30, 2020																			65.5	65.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cancellation of Stock (in shares)				0.7															0.7
Reacquired Class A Common Stock for employee taxes (in shares)	0.1																		0.1
Exercise of employee stock options and restricted stock units (in shares)				1.7						1.7
Share based compensation expense	$ 27.4				27.4							27.4
Changes in dividends accrued	1.2				1.2							1.2
Shares withheld for employee taxes	(5.0)				(5.0)							(5.0)
Deemed Dividends and Contributions- 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
Equity Investment contribution for share-based compensation	2.3				2.3							2.3
Ending balance (in shares) at Jun. 30, 2021								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										832.3
Ending balance (in shares) at Jun. 30, 2021																			66.3
Beginning balance, redeemable noncontrolling interest at Jun. 30, 2020	79.1		79.1
Beginning balance, convertible stock at Jun. 30, 2020	715.8		$ 715.8
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Issuance of Preferred Stock	242.4
Deemed Dividends and Contributions- Convertible Series B Preferred Stock	10.5
Dividends Accrued - Convertible Series B Preferred Stock	67.6
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						3.3
Share based compensation expense	195.4				195.4							195.4
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)
Deemed Dividends and Contributions- 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
Equity Investment contribution for share-based compensation	$ 0.7				0.7							0.7
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]
Deemed Dividends and Contributions- Convertible Series B Preferred Stock	$ 163.1
Conversion of Convertible Series B Preferred Stock	429.5
Exchange Transaction	606.9
Dividends Accrued - Convertible Series B Preferred Stock	35.2
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cancellation of Stock (in shares)								0.5
Cancellation of Stock	0.0				0.0
Reacquired Class A Common Stock for employee taxes (in shares)																			0.2
Exercise of employee stock options and restricted stock units (in shares)				13.8						13.8
Exercise of employee stock options and restricted stock units	0.9				0.9					$ 0.1		0.8
Share based compensation expense	134.7				134.7							134.7
Changes in dividends accrued	0.1				0.1							0.1
Shares withheld for employee taxes	(13.6)				(13.6)							(13.6)
Dividends Accrued - Convertible Series B Preferred Stock	(13.2)				(13.2)							(13.2)
Net income (loss)	506.4				508.2									508.2							(1.8)
Other comprehensive income	55.9																55.5
Other comprehensive income	55.8				55.5												55.5				0.3
Distribution to noncontrolling interests, net	(3.5)																				(3.5)
Adjustment of redeemable noncontrolling interests to redemption value	(20.6)				(20.6)							(20.6)
Equity Investment contribution for share-based compensation	$ 4.6				4.6							4.6
Ending balance (in shares) at Jun. 30, 2023	1.0							1.0
Ending balance at Jun. 30, 2023	$ 3,997.4				$ 3,811.1			$ 0.0		$ 9.1		$ 10,898.6		$ (4,987.9)			$ (662.4)		$ (1,446.3)		$ 186.3
Ending balance (in shares) at Jun. 30, 2023	852.8			852.8						919.3
Ending balance (in shares) at Jun. 30, 2023	66.5																		66.5
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Dividends Accrued - Convertible Series B Preferred Stock	$ 13.2
Dividends Paid- Convertible Series B Preferred Stock	(13.2)
Net income (loss)	16.8
Other comprehensive loss	0.1
Distribution to noncontrolling interests, net	(13.8)
Adjustment of redeemable noncontrolling interests to redemption value	20.6
Ending balance, redeemable noncontrolling interest at Jun. 30, 2023	93.5
Ending balance, convertible stock at Jun. 30, 2023	$ 142.4