VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Allowance for doubtful accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 35.2	$ 19.6	$ 16.7
Balance Received through Acquisition	0.0	0.0	0.0
Charged to Costs and Expenses	32.8	21.9	4.5
Deductions	(9.5)	(6.3)	(1.6)
Balance at End of Period	58.5	35.2	19.6
Allowance for customer returns
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	57.3	59.9	87.3
Balance Received through Acquisition	11.4	0.0	0.0
Charged to Costs and Expenses	165.7	132.8	153.9
Deductions	(167.1)	(135.4)	(181.3)
Balance at End of Period	67.3	57.3	59.9
Deferred tax valuation allowances
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	179.2	81.9	98.6
Balance Received through Acquisition	0.0	0.0	0.0
Charged to Costs and Expenses	9.2	117.9	7.9
Deductions	(128.1)	(20.6)	(24.6)
Balance at End of Period	$ 60.3	$ 179.2	$ 81.9