SHARE-BASED COMPENSATION AND POSTRETIREMENT BENEFITS (Details) - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]
Share-based Payment Arrangement, Expense		$ 110	$ 102
Pension Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	[1]	40	28
Other Postretirement Benefit Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	[1]	$ (52)	$ (41)

[1] The components of the total net periodic benefit cost for both pension benefits and other retiree benefits for these 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, 2019.