NET INCOME ATTRIBUTABLE TO COTY INC. PER COMMON SHARE (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Net income attributable to Coty Inc.	$ 75,500,000	$ (253,300,000)	$ 211,500,000	$ (77,300,000)
Weighted-average common shares outstanding:
Weighted-average common shares outstanding—Basic (in Shares)	344.7	384.0	350.9	384.1
Effect of dilutive stock options	7.7	0	7.8	0
Effect of restricted stock and RSUs	2.4	0	2.0	0
Weighted-average common shares outstanding—Diluted (in Shares)	354.8	384.0	360.7	384.1
Net income attributable to Coty Inc. per common share:
Basic (in Dollars per share)	$ 0.22	$ (0.66)	$ 0.60	$ (0.20)
Diluted (in Dollars per share)	$ 0.21	$ (0.66)	$ 0.59	$ (0.20)
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding options excluded from diluted earnings per share calculation due to anti-dilutive effect	0		0	0
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units		$ 0	$ 0	$ 0
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding options excluded from diluted earnings per share calculation due to anti-dilutive effect	0	0	0.5	0