VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Allowance for doubtful accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 58.5	$ 35.2	$ 19.6
Balance Received through Acquisition	0.0	0.0	0.0
Charged to Costs and Expenses	16.3	32.8	21.9
Deductions	7.0	(9.5)	(6.3)
Balance at End of Period	81.8	58.5	35.2
Allowance for customer returns
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	67.3	57.3	59.9
Balance Received through Acquisition	10.1	11.4	0.0
Charged to Costs and Expenses	169.8	165.7	132.8
Deductions	(166.1)	(167.1)	(135.4)
Balance at End of Period	81.1	67.3	57.3
Deferred tax valuation allowances
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	60.3	179.2	81.9
Balance Received through Acquisition	0.0	0.0	0.0
Charged to Costs and Expenses	54.7	9.2	117.9
Deductions	(10.4)	(128.1)	(20.6)
Balance at End of Period	$ 104.6	$ 60.3	$ 179.2