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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2023
Related Party Transaction [Line Items]
Gain on sale	$ 80.8	$ 141.9	$ 4.2	$ 240.1
Accounts receivable, related parties	500.2		500.2		$ 360.9
Accounts payable	1,462.9		1,462.9		1,444.7
Other noncurrent liabilities	343.1		343.1		$ 325.4
Share-based compensation expense (income)	23.3	35.7	53.0	66.8
Sublease income	4.5	3.9	8.4	7.7
Wella Company
Related Party Transaction [Line Items]
Gain on sale	1.9	12.5	8.5	26.4
Accounts receivable, related parties	102.7		102.7
Accounts payable	8.2		8.2
Share-based compensation expense (income)	0.6	1.0	1.3	2.7
Sublease income	2.0	2.3	4.1	4.7
Management, Consulting and Financial Services \| Wella Company
Related Party Transaction [Line Items]
Gain on sale	0.3	0.3	0.6	0.6
Wella Company
Related Party Transaction [Line Items]
Other noncurrent liabilities	$ 34.0		$ 34.0
Wella Company
Related Party Transaction [Line Items]
Ownership percentage	25.90%		25.90%		25.90%
Wella Company \| Transition Services Agreement Fees
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.8	0.7	$ 1.8	1.5
Wella Company \| Related Party Transaction, Other Fees
Related Party Transaction [Line Items]
Revenue from related parties	$ 2.7	$ 2.0	$ 5.0	$ 4.1