FAIR VALUE MEASUREMENTS - Fair Values Of The Company’s Financial Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2015	Jun. 30, 2015
Carrying Amount
Debt Instrument [Line Items]
Dividends payable	$ 2.3	$ 1.4
Carrying Amount | Coty Inc. Credit Agreements
Debt Instrument [Line Items]
Debt instrument, value	2,768.5	2,611.5
Fair Value
Debt Instrument [Line Items]
Dividends payable	1.8	1.1
Fair Value | Coty Inc. Credit Agreements
Debt Instrument [Line Items]
Debt instrument, value	$ 2,771.6	$ 2,614.2