INCOME TAXES - Narrative (Details) $ in Millions	12 Months Ended
	Jun. 30, 2022 USD ($) jurisdiction	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Income Tax Contingency [Line Items]
Tax benefit, foreign tax rate differential	$ 0.0	$ 234.4	$ 0.0
Tax expense, internal restructuring	0.0	130.0	0.0
Capital loss carry forwards	(1.1)	(1.1)	(105.7)
Tax loss carry forwards subject to expiration	1,074.7
Valuation allowance	41.7	33.4
Unrecognized tax benefits	251.6	279.9	277.9	$ 263.6
Unrecognized tax benefits that would impact effective tax rate	174.8
Unrecognized tax benefits, including accrued interest and penalties	191.8	181.2
Unrecognized tax benefits, interest	4.2	0.8	3.2
Unrecognized tax benefits, penalties	0.0	0.5	$ 0.0
Accrued interest and penalties	$ 26.4	21.7
Number of tax jurisdictions | jurisdiction	40
Income tax benefit	$ 14.3	$ 33.7
Amount of decrease in UTBs	17.8
Wella Business
Income Tax Contingency [Line Items]
Large fair value gains on investment, tax costs	$ 164.8