DEBT - Schedule of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2018	Jun. 30, 2018
Debt Instrument [Line Items]
Short-term debt	$ 54.3	$ 9.2
Long-term debt	7,850.4
Other long-term debt and capital lease obligations	1.3	1.6
Total debt	7,906.0	7,623.2
Less: Short-term debt and current portion of long-term debt	(255.7)	(218.9)
Total Long-term debt	7,650.3	7,404.3
Less: Unamortized deferred financing costs	(77.7)	(86.2)
Less: Discount on Long-term debt	(11.7)	(12.7)
Total Long-term debt, net	(7,560.9)	(7,305.4)
Debt issuance costs, net	77.7	86.2
Line of Credit \| 2018 Coty Revolving Credit Facility Due April 2023 \| Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	783.9	368.1
Line of Credit \| 2018 Coty Term A Facility Due April 2023 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	3,242.6	3,371.5
Less: Unamortized deferred financing costs	(26.1)	(29.2)
Debt issuance costs, net	26.1	29.2
Line of Credit \| 2018 Coty Term B Facility Due April 2025 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	2,359.6	2,390.5
Less: Unamortized deferred financing costs	(10.1)	(10.9)
Debt issuance costs, net	10.1	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	628.6	640.9
Less: Unamortized deferred financing costs	(5.8)	(6.4)
Debt issuance costs, net	5.8	6.4
Line of Credit \| 2026 Euro Notes Due April 2026 \| Term Loan
Debt Instrument [Line Items]
Long-term debt	285.7	291.4
Line of Credit \| 2018 Coty Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Less: Unamortized deferred financing costs	(28.0)	(31.4)
Debt issuance costs, net	28.0	31.4
Line of Credit \| 2026 Dollar And Euro Notes \| Term Loan
Debt Instrument [Line Items]
Less: Unamortized deferred financing costs	(7.7)	(8.3)
Debt issuance costs, net	$ 7.7	$ 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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Amount, after accumulated amortization, of debt discount.

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