DEBT - Schedule of Fair Value of Debt (Details) - USD ($) $ in Millions	Mar. 31, 2024	Jun. 30, 2023
2018 Coty Credit Agreement | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	$ 255.4	$ 1,412.6
2018 Coty Credit Agreement | Fair Value
Debt Instrument [Line Items]
Fair value of debt	255.4	1,393.5
Senior Secured Notes | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	3,193.1	2,161.0
Senior Secured Notes | Fair Value
Debt Instrument [Line Items]
Fair value of debt	3,182.4	2,066.9
Senior Unsecured Notes | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	517.3	669.0
Senior Unsecured Notes | Fair Value
Debt Instrument [Line Items]
Fair value of debt	517.8	661.5
Brazilian Credit Facilities | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	0.0	31.9
Brazilian Credit Facilities | Fair Value
Debt Instrument [Line Items]
Fair value of debt	$ 0.0	$ 32.2