INCOME TAXES - SIGNIFICANT COMPONENTS OF DEFERRED INCOME TAX ASSETS AND LIABILITIES (Details) - USD ($) $ in Millions	Jun. 30, 2020	Jun. 30, 2019
Deferred tax assets:
Compensation-related expenses	$ 142	$ 179
Inventory obsolescence and other inventory related reserves	75	64
Retirement benefit obligations	71	71
Various accruals not currently deductible	212	206
Net operating loss, credit and other carryforwards	98	41
Unrecognized state tax benefits and accrued interest	12	12
Lease liabilities	585	0
Other differences between tax and financial statement values	217	125
Deferred tax assets, gross	1,412	698
Valuation allowance for deferred tax assets	(107)	(48)
Total deferred tax assets	1,305	650
Deferred tax liabilities:
Depreciation and amortization	(563)	(286)
ROU assets	(504)	0
Other differences between tax and financial statement values	(194)	(69)
Total deferred tax liabilities	(1,261)	(355)
Total net deferred tax assets	44	$ 295
Deferred tax liability, gain on previously held equity method investment	$ 117