SUPPLEMENTAL FINANCIAL INFORMATION - RESTRUCTURING ACTIVITY (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	$ 468	$ 513
Restructuring Charges	782	754	$ 1,070
Payments for Restructuring	(406)	(547)
Charges Against Assets	(372)	(252)
Restructuring Reserve Ending Balance	472	468	513
Separations
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	280	259
Restructuring Charges	221	260
Payments for Restructuring	(216)	(239)
Charges Against Assets	0	0
Restructuring Reserve Ending Balance	285	280	259
Asset-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	0	0
Restructuring Charges	372	252
Payments for Restructuring	0	0
Charges Against Assets	(372)	(252)
Restructuring Reserve Ending Balance	0	0	0
Other
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	188	254
Restructuring Charges	189	242
Payments for Restructuring	(190)	(308)
Charges Against Assets	0	0
Restructuring Reserve Ending Balance	$ 187	$ 188	$ 254

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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