Document And Entity Information	9 Months Ended
	Mar. 31, 2015	May 05, 2015
Document Information [Line Items]
Entity Registrant Name	COTY INC.
Document Type	10-Q
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	No
Document Period End Date	Mar. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		98,198,818
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		262,088,370