SHARE-BASED COMPENSATION AND POSTRETIREMENT BENEFITS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]
Share-based Payment Arrangement, Expense	$ 152	$ 165	$ 268	$ 254
Pension Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	47	46	95	93
Other Postretirement Benefit Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	$ (119)	$ (80)	$ (222)	$ (160)