DEBT - Schedule of Debt (Details) - USD ($) $ in Millions	Mar. 31, 2019	Jun. 30, 2018
Debt Instrument [Line Items]
Short-term debt	$ 8.5	$ 9.2
Long-term debt	7,762.5
Other long-term debt and capital lease obligations	1.3	1.6
Total debt	7,772.3	7,623.2
Less: Short-term debt and current portion of long-term debt	(196.7)	(218.9)
Total Long-term debt	7,575.6	7,404.3
Less: Unamortized deferred financing costs	(73.5)	(86.2)
Less: Discount on Long-term debt	(11.2)	(12.7)
Total Long-term debt, net	7,490.9	7,305.4
Debt issuance costs, net	73.5	86.2
Line of Credit \| 2018 Coty Revolving Credit Facility due April 2023 \| Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	814.2	368.1
Line of Credit \| 2018 Coty Term A Facility due April 2023 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	3,162.6	3,371.5
Less: Unamortized deferred financing costs	(24.6)	(29.2)
Debt issuance costs, net	24.6	29.2
Line of Credit \| 2018 Coty Term B Facility due April 2025 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	2,337.1	2,390.5
Less: Unamortized deferred financing costs	(9.7)	(10.9)
Debt issuance costs, net	9.7	10.9
Line of Credit \| 2026 Dollar Notes due April 2026 \| Revolving Credit Facility
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	617.8	640.9
Less: Unamortized deferred financing costs	(5.4)	(6.4)
Debt issuance costs, net	5.4	6.4
Line of Credit \| 2026 Euro Notes due April 2026 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	280.8	291.4
Line of Credit \| 2018 Coty Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Less: Unamortized deferred financing costs	(26.4)	(31.4)
Debt issuance costs, net	26.4	31.4
Line of Credit \| 2026 Dollar And Euro Notes \| Term Loan
Debt Instrument [Line Items]
Less: Unamortized deferred financing costs	(7.4)	(8.3)
Debt issuance costs, net	$ 7.4	$ 8.3

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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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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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