DEBT - Schedule of Fair Value of Debt (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023
2018 Coty Credit Agreement | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	$ 85.0	$ 1,412.6
2018 Coty Credit Agreement | Fair Value
Debt Instrument [Line Items]
Fair value of debt	85.0	1,393.5
Senior Secured Notes | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	3,419.1	2,161.0
Senior Secured Notes | Fair Value
Debt Instrument [Line Items]
Fair value of debt	3,305.0	2,066.9
Senior Unsecured Notes | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	663.7	669.0
Senior Unsecured Notes | Fair Value
Debt Instrument [Line Items]
Fair value of debt	657.0	661.5
Brazilian Credit Facilities | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	31.9	31.9
Brazilian Credit Facilities | Fair Value
Debt Instrument [Line Items]
Fair value of debt	$ 32.1	$ 32.2