VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 81.8	$ 58.5	$ 35.2
Balance Received through Acquisition	0.0	0.0	0.0
Charged to Costs and Expenses	11.6	16.3	32.8
Deductions	(45.3)	7.0	(9.5)
Balance at End of Period	48.1	81.8	58.5
Allowance for customer returns
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	81.1	67.3	57.3
Balance Received through Acquisition	0.0	10.1	11.4
Charged to Costs and Expenses	161.2	169.8	165.7
Deductions	(186.0)	(166.1)	(167.1)
Balance at End of Period	56.3	81.1	67.3
Deferred tax valuation allowances
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	104.6	60.3	179.2
Balance Received through Acquisition	0.0	0.0	0.0
Charged to Costs and Expenses	4.6	54.7	9.2
Deductions	(41.5)	(10.4)	(128.1)
Balance at End of Period	$ 67.7	$ 104.6	$ 60.3