SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Additional Information) (Details) $ in Millions	12 Months Ended
	Jun. 30, 2021 USD ($) instrument	Jun. 30, 2020 USD ($) instrument	Jun. 30, 2019 instrument
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Hosting arrangement term (in years)	6 years
Performance period for performance awards (in years)	3 years
Minimum percentage for calculating the amortization of actuarial gains and losses under the corridor approach	5.00%
Contract term (in years)	one year or less
Allowance for doubtful accounts	$ 8	$ 10
Nontrade receivables, current	22	20
Allowance for credit loss	$ 14	$ 4
Number of hedging instruments designated as fair value hedges | instrument	0	0	0
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated useful life (in years)	1 year
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated useful life (in years)	30 years