INCOME TAXES - Narrative (Details) $ in Millions	12 Months Ended
	Jun. 30, 2023 USD ($) jurisdiction	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Income Tax Contingency [Line Items]
Provision (benefit) for income taxes on continuing operations	$ 181.6	$ 164.8	$ (172.0)
Foreign tax rate principal relocation	0.0	0.0	234.4
Tax expense, internal restructuring	0.0	0.0	130.0
Tax loss carry forwards subject to expiration	686.9
Valuation allowance	60.7	41.7
Unrecognized tax benefits	235.5	251.6	279.9	$ 277.9
Unrecognized tax benefits that would impact effective tax rate	184.9
Unrecognized tax benefits, including accrued interest and penalties	218.6	191.8
Unrecognized tax benefits, interest	7.8	4.2	0.8
Unrecognized tax benefits, penalties	0.0	0.0	$ 0.5
Accrued interest and penalties	$ 33.1	26.4
Number of tax jurisdictions | jurisdiction	40
Income tax benefit	$ 18.4	14.3
Amount of decrease in UTBs	21.5
Wella Business
Income Tax Contingency [Line Items]
Large fair value gains on investment, tax costs	$ 181.6	$ 164.8