DEBT - Schedule of Fair Value of Debt (Details) - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023
Carrying Amount | 2018 Coty Credit Agreement
Debt Instrument [Line Items]
Fair value of debt	$ 0.0	$ 1,412.6
Fair Value | 2018 Coty Credit Agreement
Debt Instrument [Line Items]
Fair value of debt	0.0	1,393.5
Senior Secured Notes | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	3,716.7	2,161.0
Senior Secured Notes | Fair Value
Debt Instrument [Line Items]
Fair value of debt	3,719.7	2,066.9
Senior Unsecured Notes | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	192.7	669.0
Senior Unsecured Notes | Fair Value
Debt Instrument [Line Items]
Fair value of debt	192.8	661.5
Brazilian Credit Facility | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	0.0	31.9
Brazilian Credit Facility | Fair Value
Debt Instrument [Line Items]
Fair value of debt	$ 0.0	$ 32.2