DEBT - Schedule of Fair Value of Debt (Details) - USD ($) $ in Millions	Jun. 30, 2020	Jun. 30, 2019
Carrying Amount | 2018 Coty Credit Agreement
Debt Instrument [Line Items]
Fair value of debt	$ 6,706.3	$ 6,281.4
Fair Value | 2018 Coty Credit Agreement
Debt Instrument [Line Items]
Fair value of debt	5,962.3	6,058.9
Senior Notes | Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	1,449.4	1,459.1
Senior Notes | Fair Value
Debt Instrument [Line Items]
Fair value of debt	$ 1,270.3	$ 1,439.6