SHARE-BASED COMPENSATION AND POSTRETIREMENT BENEFITS (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Allocated Share-based Compensation Expense		$ 74	$ 74	$ 118	$ 140
Pension and Other Retiree Benefits
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	[1]	257	85	353	171
Other Postretirement Benefit Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	[1]	$ 58	$ (25)	$ 39	$ (49)

[1] The components of the total net periodic benefit cost for both pension benefits and other retiree benefits for those interim periods, on an annualized basis, do not differ materially from the amounts disclosed in the Annual Report on Form 10-K for the fiscal year ended June 30, 2016.