FAIR VALUE MEASUREMENTS - Fair Values Of The Company’s Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2015	Jun. 30, 2015
Carrying Amount
Debt Instrument [Line Items]
Dividends payable	$ 2.0	$ 1.4
Carrying Amount | Coty Credit Agreement
Debt Instrument [Line Items]
Debt instrument, value	3,651.6	0.0
Carrying Amount | Prior Coty Inc. Credit Facilities
Debt Instrument [Line Items]
Debt instrument, value	0.0	2,611.5
Fair Value
Debt Instrument [Line Items]
Dividends payable	1.5	1.1
Fair Value | Coty Credit Agreement
Debt Instrument [Line Items]
Debt instrument, value	3,599.4	0.0
Fair Value | Prior Coty Inc. Credit Facilities
Debt Instrument [Line Items]
Debt instrument, value	$ 0.0	$ 2,614.2