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COMMITMENTS AND CONTINGENCIES Business Acquisitions (Details) (Bourjois Cosmetics Brand [Member], Common Class A [Member])
In Millions, unless otherwise specified
0 Months Ended
Oct. 07, 2014
Bourjois Cosmetics Brand [Member] | Common Class A [Member]
 
Business Acquisition [Line Items]  
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares 15.0us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_BusinessAcquisitionAxis
= coty_BourjoisCosmeticsBrandMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember