Document And Entity Information - USD ($)	12 Months Ended
	Jun. 30, 2015	Aug. 13, 2015	Dec. 31, 2014
Document Information [Line Items]
Entity Registrant Name	COTY INC.
Document Type	10-K
Current Fiscal Year End Date	--06-30
Amendment Flag	false
Entity Central Index Key	0001024305
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Entity Public Float			$ 1,151,146,875
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		98,814,559
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		262,062,370