Document and Entity Information - shares	9 Months Ended
	Mar. 31, 2016	Apr. 29, 2016
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 Filer Category	Large Accelerated Filer
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		77,024,731
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		262,062,370