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DEBT - Schedule of Fair Value of Debt (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Jun. 30, 2020
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2018 Coty Credit Agreement | Carrying Amount |  |
Debt Instrument [Line Items] |  |
Fair value of debt | $ 6,909.5 | $ 6,706.3
2018 Coty Credit Agreement | Fair Value |  |
Debt Instrument [Line Items] |  |
Fair value of debt | 6,334.3 | 5,962.3
Senior Unsecured Notes | Carrying Amount |  |
Debt Instrument [Line Items] |  |
Fair value of debt | 1,488.5 | 1,449.4
Senior Unsecured Notes | Fair Value |  |
Debt Instrument [Line Items] |  |
Fair value of debt | $ 1,206.6 | $ 1,270.3

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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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