DEBT - Schedule of Debt (Details) - USD ($) $ in Millions	Sep. 30, 2021	Jun. 30, 2021
Debt Instrument [Line Items]
Short-term debt	$ 0.0	$ 0.0
Long-term debt	5,331.9
Other long-term debt and capital lease obligations	0.1	0.2
Total debt	5,332.0	5,481.5
Less: Short-term debt and current portion of long-term debt	(24.0)	(24.2)
Total Long-term debt	5,308.0	5,457.3
Less: Unamortized financing fees	(46.9)	(51.7)
Less: Discount on long-term debt	(11.1)	(4.6)
Total Long-term debt, net	5,250.0	5,401.0
2021 Coty Revolving Credit Facility due April 2025
Debt Instrument [Line Items]
Less: Discount on long-term debt	(7.0)
Line of Credit \| 2018 Coty Revolving Credit Facility due April 2023 \| Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	590.0	670.0
Line of Credit \| 2021 Coty Revolving Credit Facility due April 2025 \| Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	0.0	0.0
Line of Credit \| 2018 Coty Term A Facility due April 2023 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	111.1	114.0
Line of Credit \| 2018 Coty Term B Facility due April 2025 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	1,440.3	1,461.7
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	638.2	654.7
Line of Credit \| 2026 Euro Notes due April 2026 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	290.1	297.6
Senior Unsecured Notes \| 2026 Dollar Senior Secured Notes due April 2026
Debt Instrument [Line Items]
Long-term debt	900.0	900.0
Senior Unsecured Notes \| 2026 Euro Senior Secured Notes due April 2026
Debt Instrument [Line Items]
Long-term debt	$ 812.2	$ 833.3

Long-term Debt and Capital Lease Obligations, Gross

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- Definition

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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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.

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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, classified as noncurrent.

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

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