COMMITMENTS AND CONTINGENCIES Business Acquisitions (Details) - Procter and Gamble Beauty Business - USD ($) $ / shares in Units, shares in Millions, $ in Millions	Jul. 08, 2015	Sep. 30, 2015
Business Acquisition [Line Items]
Estimated value of transaction	$ 12,500.0	$ 13,000.0
Number of shares	413.0
Percentage of diluted equity	52.00%
Business Combination, Estimated Value, Equity Component	$ 9,600.0
Value of combined company		11,100.0
Debt assumed	2,900.0	$ 1,900.0
Business Combination, Estimated Debt Assumed, Adjustment Value	1,000.0
Minimum
Business Acquisition [Line Items]
Debt assumed	$ 1,900.0
Assumed debt per share of Coty's stock	$ 22.06
Maximum
Business Acquisition [Line Items]
Debt assumed	$ 3,900.0
Assumed debt per share of Coty's stock	$ 27.06