| Cover - USD ($) $ in Billions | 12 Months Ended | ||
| Jun. 30, 2021 | Aug. 19, 2021 | Dec. 31, 2020 | |
| Cover [Abstract] | |||
| Document Period End Date | Jun. 30, 2021 | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Entity File Number | 001-35964 | ||
| Entity Registrant Name | COTY INC. | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity Tax Identification Number | 13-3823358 | ||
| Entity Address, Address Line One | 350 Fifth Avenue, | ||
| Entity Address, Postal Zip Code | 10118 | ||
| Entity Address, State or Province | NY | ||
| Entity Address, City or Town | New York, | ||
| City Area Code | 212 | ||
| Local Phone Number | 389-7300 | ||
| Title of 12(b) Security | Class A Common Stock, $0.01 par value | ||
| Trading Symbol | COTY | ||
| Security Exchange Name | NYSE | ||
| Entity Well-known Seasoned Issuer | Yes | ||
| Entity Voluntary Filers | No | ||
| ICFR Auditor Attestation Flag | true | ||
| Entity Current Reporting Status | Yes | ||
| Entity Interactive Data Current | Yes | ||
| Entity Filer Category | Large Accelerated Filer | ||
| Entity Small Business | false | ||
| Entity Emerging Growth Company | false | ||
| Entity Shell Company | false | ||
| Entity Public Float | $ 2 | ||
| Entity Common Stock, Shares Outstanding | 766,065,761 | ||
| Entity Central Index Key | 0001024305 | ||
| Document Fiscal Year Focus | 2021 | ||
| Document Fiscal Period Focus | FY | ||
| Amendment Flag | true | ||
| Amendment Description | Coty Inc., a Delaware corporation, and its subsidiaries (collectively, the “Company” or “Coty”, which may also be referred to as “we”, “us” or “our”) is filing this Amendment No. 1 (“the Amendment”) to our Annual Report on Form 10-K (the “Form 10-K”) for the fiscal year ended June 30, 2021, which was filed with the Securities and Exchange Commission (“SEC”) on August 26, 2021, to include the audited financial statements of Rainbow JVCO Limited and its subsidiaries (together, “Wella”), pursuant to Rule 3-09 of Regulation S-X. Wella has met the conditions of a significant subsidiary under Rule 1-02(w) of Regulation S-X for the year ended June 30, 2021. In accordance with Rule 3-09(b), the separate audited financial statements of Wella for the seven months ended June 30, 2021 are being filed as an amendment to the Form 10-K as Exhibit 99.1 included in Part IV, Item 15 of this filing within 90 days after the end of Wella’s fiscal year.This Amendment also updates, amends and supplements Part IV, Item 15 of the Form 10-K to include the filing of Exhibit 23.2, consent of Deloitte & Touche LLP and Exhibits 31.3, 31.4, 32.3 and 32.4, certifications of our Chief Executive Officer and Chief Financial Officer, pursuant to Rule 13a-14(a) and (b) of the Securities Exchange Act of 1934, as amended.Except as described above, no other changes have been made to the Form 10-K. This Amendment does not reflect subsequent events that may have occurred after the original filing date of the Form 10-K or modify or update in any way disclosures made in the 10-K. Among other things, forward-looking statements made in the Form 10-K have not been revised to reflect events that occurred or facts that became known to us after the filing of the Form 10-K, and such forward-looking statements should be read in their historical context. Furthermore, this Amendment should be read in conjunction with the Form 10-K and any subsequent filings with the SEC. | ||
| Document Type | 10-K/A | ||
| Current Fiscal Year End Date | --06-30 |
