DEBT - Schedule of fair value of debt (Details) - USD ($) $ in Millions	Dec. 31, 2024	Jun. 30, 2024
2018 Coty Credit Agreement \| Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	$ 80.0	$ 0.0
2018 Coty Credit Agreement \| Fair Value
Debt Instrument [Line Items]
Fair value of debt	80.0	0.0
Senior Secured Notes \| Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	3,369.3	3,716.7
Senior Secured Notes \| Fair Value
Debt Instrument [Line Items]
Fair value of debt	3,396.1	3,719.7
Senior Unsecured Notes \| Carrying Amount
Debt Instrument [Line Items]
Fair value of debt	0.0	192.7
Senior Unsecured Notes \| Fair Value
Debt Instrument [Line Items]
Fair value of debt	$ 0.0	$ 192.8

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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+ Details

- 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.

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+ Details