SUPPLEMENTAL FINANCIAL INFORMATION - RESTRUCTURING ACTIVITY (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	$ 513	$ 277
Restructuring Charges	754	1,070	$ 754
Payments for Restructuring	(547)	(468)
Charges Against Assets	(252)	(366)
Restructuring Reserve Ending Balance	468	513	277
Separations
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	259	228
Restructuring Charges	260	310
Payments for Restructuring	(239)	(279)
Charges Against Assets	0	0
Restructuring Reserve Ending Balance	280	259	228
Asset-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	0	0
Restructuring Charges	252	366
Payments for Restructuring	0	0
Charges Against Assets	(252)	(366)
Restructuring Reserve Ending Balance	0	0	0
Other
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve Beginning Balance	254	49
Restructuring Charges	242	394
Payments for Restructuring	(308)	(189)
Charges Against Assets	0	0
Restructuring Reserve Ending Balance	$ 188	$ 254	$ 49

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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