EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Retirement Income Plans [Member]
Defined Benefit Plans [Line Items]
Service cost	$ 1	$ 0	$ 1	$ 1
Interest cost	6	7	19	19
Expected return on plan assets	(4)	(5)	(13)	(15)
Amortization of unrecognized items	2	3	7	9
Net periodic benefit cost	5	5	14	14
Discretionary contributions	0		15
Retirement Health Care Plans [Member]
Defined Benefit Plans [Line Items]
Net periodic benefit cost	$ (1)	$ (1)	$ (1)	$ (2)