DEBT - Schedule of Fair Value of Debt (Details) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 30, 2020
Carrying Amount | 2018 Coty Credit Agreement
Debt Instrument [Line Items]
Fair value of debt	$ 2,245.7	$ 6,706.3
Fair Value | 2018 Coty Credit Agreement
Debt Instrument [Line Items]
Fair value of debt	2,188.5	5,962.3
Senior Secured Notes | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	1,733.3	0.0
Senior Secured Notes | Fair Value
Debt Instrument [Line Items]
Fair value of debt	1,749.1	0.0
Senior Unsecured Notes | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	1,502.3	1,449.4
Senior Unsecured Notes | Fair Value
Debt Instrument [Line Items]
Fair value of debt	$ 1,500.5	$ 1,270.3