EMPLOYEE BENEFIT PLANS (Components of the Net Cost of Retirement Income and Health Care Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Retirement Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1	$ 2	$ 3
Interest cost	26	25	27
Expected return on plan assets	(17)	(20)	(25)
Amortization of unrecognized items	10	12	11
Total	20	19	16
Retirement Health Care [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	1
Interest cost	2	2	2
Expected return on plan assets	0	0	0
Amortization of unrecognized items	(3)	2	(4)
Total	$ (1)	$ 4	$ (1)