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INCOME TAXES (Unrecognized Tax Benefits) (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Income Tax Disclosure [Abstract]      
Unrecognized tax benefits at beginning of year $ 38 $ 71 $ 69
Gross increases - tax positions in prior periods 3 3 3
Gross decreases - tax positions in prior periods (3) (8) (5)
Gross increases - current period tax positions 8 6 7
Gross decreases - current period tax positions 0 0 0
Lapse of applicable statute of limitations (4) (34) (1)
Settlements (5) 0 (2)
Unrecognized tax benefits at end of year $ 37 $ 38 $ 71