NET INCOME (LOSS) ATTRIBUTABLE TO COTY INC. PER COMMON SHARE (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2012
Earnings Per Share [Abstract]
Net income attributable to Coty Inc.		$ (97.4)		$ 168.0		$ (324.4)
Weighted-average common shares outstanding:
Weighted-average common shares outstanding—Basic		381,700,000		381,700,000		373,000,000
Effect of dilutive stock options		0	[1]	12,300,000	[1]	0	[1]
Effect of restricted stock and RSUs		0	[2]	2,400,000	[2]	0	[2]
Weighted-average common shares outstanding—Diluted		381,700,000		396,400,000		373,000,000
Net (loss) income attributable to Coty Inc. per common share:
Basic (dollars per shares)		$ (0.26)		$ 0.44		$ (0.87)
Diluted (dollars per shares)		$ (0.26)		$ 0.42		$ (0.87)
Stock Option
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		1,200,000		0
Restricted Stock Units
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		0

[1] As of June 30, 2013, outstanding stock options to purchase 1.2 million shares of Common Stock are excluded from the computation of diluted EPS as their inclusion would be anti-dilutive. Due to the net loss incurred in fiscal 2014 and 2012, stock options are excluded from the computation of diluted EPS as their inclusion would be anti-dilutive.

[2] As of June 30, 2013, there are no anti-dilutive RSUs excluded from the computation of diluted EPS as their inclusion would be anti-dilutive. Due to the net loss incurred in fiscal 2014 and 2012, RSUs are excluded from the computation of diluted EPS as their inclusion would be anti-dilutive.