SUPPLEMENTAL FINANCIAL INFORMATION - ADDITIONAL INFORMATION (Details) $ in Millions	12 Months Ended		60 Months Ended	72 Months Ended
	Jun. 30, 2016 USD ($) employees	Jun. 30, 2015 USD ($) employees	Jun. 30, 2016 USD ($) employees	Jun. 30, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			$ 4,900
Restructuring Charges	$ 977	$ 1,068
Severance Packages | employees	2,770	4,820	17,070
Severance Packages - Non Manufacturing Overhead | employees	920	2,340	9,540
Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 202	$ 338
Cost of Goods Sold
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	718	614
Non-manufacturing Overhead Personnel
Restructuring Cost and Reserve [Line Items]
Number of Positions Eliminated | employees			14,200
Number of Positions Eliminated, Period Percent			24.00%
Separations
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	262	516	$ 2,300
Asset-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	432	289	1,400
Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	283	$ 263	1,200
Minimum
Restructuring Cost and Reserve [Line Items]
Historical Restructuring Costs Before Tax	250		250
Maximum
Restructuring Cost and Reserve [Line Items]
Historical Restructuring Costs Before Tax	$ 500		$ 500
Subsequent Event
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				$ 5,500
Subsequent Event | Minimum
Restructuring Cost and Reserve [Line Items]
Restructuring And Related Cost, Expected Number Of Positions Eliminated, Percent				25.00%
Subsequent Event | Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring And Related Cost, Expected Number Of Positions Eliminated, Percent				30.00%