EMPLOYEE BENEFIT PLANS (Items Not Yet Recognized as a Component of Postretirement Expense) (Details) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015
Retirement Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	$ 296	$ 264
Prior service benefit	0
Net deferred income tax (assets) liabilities	(111)
Accumulated other comprehensive loss (income)	185
Retirement Health Care [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	(13)	$ (17)
Prior service benefit	(6)
Net deferred income tax (assets) liabilities	7
Accumulated other comprehensive loss (income)	$ (12)