VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ (5)	$ (4)	$ (3)
Charged to costs and expenses	0	(1)	(1)
Credited to costs and expenses	2	0	0
Valuation Allowances and Reserves, Deductions	0	0	0
Balance at end of period	(3)	(5)	(4)
LIFO Allowance [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	(32)	(34)	(36)
Charged to costs and expenses	0	(1)	0
Credited to costs and expenses	0	0	0
Valuation Allowances and Reserves, Deductions	6	3	2
Balance at end of period	(26)	(32)	(34)
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	(37)	(34)	(51)
Charged to costs and expenses	(3)	(5)	(4)
Credited to costs and expenses	0	0	0
Valuation Allowances and Reserves, Deductions	0	2	21
Balance at end of period	$ (40)	$ (37)	$ (34)