SUPPLEMENTAL FINANCIAL INFORMATION - ADDITIONAL INFORMATION (Details) $ in Millions	12 Months Ended
	Jun. 30, 2019 USD ($) employees	Jun. 30, 2018 USD ($) employees	Jun. 30, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 754	$ 1,070	$ 754
Severance Packages | employees	1,810	2,720
Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 213	$ 237
Cost of Goods Sold
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	521	819
Other Nonoperating Income (Expense) [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	20	$ 14
Minimum
Restructuring Cost and Reserve [Line Items]
Historical Restructuring Costs Before Tax	250
Maximum
Restructuring Cost and Reserve [Line Items]
Historical Restructuring Costs Before Tax	$ 500