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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Jun. 30, 2023
Related Party Transaction [Line Items]
Gain on sale	$ (14.0)	$ 156.9	$ (9.8)	$ 397.0
Accounts receivable, related parties	479.9		479.9		$ 360.9
Accounts payable	1,250.1		1,250.1		1,444.7
Other noncurrent liabilities	328.0		328.0		$ 325.4
Share-based compensation expense (income)	20.4	33.6	73.4	100.4
Sublease income	4.2	4.3	12.6	12.0
Wella Company
Related Party Transaction [Line Items]
Gain on sale	1.4	2.1	9.9	28.5
Accounts receivable, related parties	53.1		53.1
Accounts payable	20.0		20.0
Share-based compensation expense (income)	0.5	1.1	1.8	3.8
Sublease income	2.1	2.3	6.2	7.0
Management, Consulting and Financial Services \| Wella Company
Related Party Transaction [Line Items]
Gain on sale	0.3	0.3	0.9	0.8
Wella Company
Related Party Transaction [Line Items]
Other noncurrent liabilities	$ 33.9		$ 33.9
Wella Company
Related Party Transaction [Line Items]
Ownership percentage	25.84%		25.84%		25.85%
Wella Company \| Transition Services Agreement Fees
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.4	0.9	$ 2.2	2.4
Wella Company \| Related Party Transaction, Other Fees
Related Party Transaction [Line Items]
Revenue from related parties	4.8	$ 1.8	$ 9.8	$ 5.9
Discontinued Operations, Disposed of by Sale \| Wella Company \| Wella Company
Related Party Transaction [Line Items]
Cash proceeds from divestiture	$ 6.0