DEBT - Schedule of Fair Value of Debt (Details) - USD ($) $ in Millions	Jun. 30, 2017	Jun. 30, 2016
Carrying Amount | Galleria Credit Agreement
Debt Instrument [Line Items]
Fair value of debt	$ 1,944.3	$ 0.0
Carrying Amount | Coty Credit Agreement
Debt Instrument [Line Items]
Fair value of debt	5,265.9	4,149.6
Fair Value | Galleria Credit Agreement
Debt Instrument [Line Items]
Fair value of debt	1,944.0	0.0
Fair Value | Coty Credit Agreement
Debt Instrument [Line Items]
Fair value of debt	$ 5,275.4	$ 4,106.9