VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Allowance for doubtful accounts and other customer deductions:
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 24.3	$ 23.2	$ 53.4
Charged to Costs and Expenses	12.3	8.9	4.3
Deductions	(7.6)	(7.8)	(34.5)
Balance at End of Period	29.0	24.3	23.2
Allowance for customer returns:
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	63.8	82.8	95.3
Charged to Costs and Expenses	132.2	112.6	103.0
Deductions	(143.4)	(131.6)	(115.5)
Balance at End of Period	52.6	63.8	82.8
Deferred tax valuation allowances:
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	151.4	60.7	41.7
Charged to Costs and Expenses	128.9	100.9	21.7
Deductions	(6.2)	(10.2)	(2.7)
Balance at End of Period	$ 274.1	$ 151.4	$ 60.7