EMPLOYEE BENEFIT PLANS (Components of the Net Cost of Retirement Income and Health Care Plans) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Retirement Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 4	$ 0	$ 12
Interest cost	24	29	29
Expected return on plan assets	(29)	(31)	(33)
Curtailment (gain) loss	0	0	(1)
Amortization of unrecognized items	12	8	17
Total	11	6	24
Retirement Health Care [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1	2
Interest cost	2	3	4
Expected return on plan assets	0	0	0
Curtailment (gain) loss	0	0	0
Amortization of unrecognized items	(2)	(3)	(2)
Total	$ 1	$ 1	$ 4