NET INCOME ATTRIBUTABLE TO COTY INC. PER COMMON SHARE (Details) - USD ($) $ / shares in Units, shares in Millions		3 Months Ended		9 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Net (loss) income attributable to Coty Inc.		$ (26,800,000)	$ 75,500,000	$ 187,900,000	$ 211,500,000
Weighted-average common shares outstanding:
Weighted-average common shares outstanding—Basic (in Shares)		337.9	344.7	347.8	350.9
Effect of dilutive stock options and Series A Preferred Stock	[1]	0.0	7.7	6.1	7.8
Effect of restricted stock and RSUs	[2]	0.0	2.4	3.0	2.0
Weighted-average common shares outstanding—Diluted (in Shares)		337.9	354.8	356.9	360.7
Net income attributable to Coty Inc. per common share:
Basic (in Dollars per share)		$ (0.08)	$ 0.22	$ 0.54	$ 0.60
Diluted (in Dollars per share)		$ (0.08)	$ 0.21	$ 0.53	$ 0.59
Outstanding Stock Options and Series A Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of diluted EPS				3.2
Employee Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options excluded in computation of EPS			$ 0		$ 0
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of diluted EPS			0.0	0.1	0.5

[1] For the nine months ended March 31, 2016, outstanding stock options and Series A Preferred Stock with purchase or conversion rights to 3.2 million shares of common stock were excluded from the computation of diluted EPS as their inclusion would be anti-dilutive. For the three months ended March 31, 2016, no outstanding stock options and Series A Preferred Stock were included in the computation of diluted loss per share due to the net loss incurred during the period. For the three and nine months ended March 31, 2015, no options were excluded in the computation of EPS.

[2] For the nine months ended March 31, 2016, 0.1 million RSUs outstanding were excluded from the computation of diluted EPS as their inclusion would be anti-dilutive. For the three months ended March 31, 2016, no RSU were included in the computation of diluted loss per share due to the net loss incurred during the period. For the three and nine months ended March 31, 2015, nil and 0.5 million RSUs outstanding, respectively, were excluded from the computation of diluted EPS as their inclusion would be anti-dilutive.