DEBT - Schedule of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2020	Jun. 30, 2020
Debt Instrument [Line Items]
Short-term debt	$ 1.4	$ 0.0
Long-term debt	5,389.9
Other long-term debt and capital lease obligations	0.4	0.6
Total debt	5,391.7	8,156.3
Less: Short-term debt and current portion of long-term debt	(201.2)	(188.3)
Total Long-term debt	5,190.5	7,968.0
Less: Unamortized debt issuance costs	(45.5)	(66.9)
Less: Discount on Long-term debt	(5.1)	(9.0)
Total Long-term debt, net	5,139.9	7,892.1
Line of Credit \| 2018 Coty Revolving Credit Facility due April 2023 \| Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	456.0	1,438.8
Line of Credit \| 2018 Coty Term A Facility due April 2023 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	1,906.5	2,959.0
Line of Credit \| 2018 Coty Term B Facility due April 2025 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	1,494.0	2,308.5
Line of Credit \| 2026 Dollar Notes due April 2026 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	550.0	550.0
Line of Credit \| 2023 Euro Notes due April 2023 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	676.1	618.3
Line of Credit \| 2026 Euro Notes due April 2026 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	$ 307.3	$ 281.1

Long-term Debt and Capital Lease Obligations, Gross

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Other Long-Term Debt And Capital Lease Obligations

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of long-term debt and lease obligation, including portion classified as current.

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