REVENUE RECOGNITION - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Mar. 31, 2020	Jun. 30, 2019
Significant changes in deferred revenue
Balance at the beginning of the period	$ 361
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	(268)
Revenue deferred during the period	269
Balance at the end of the period	362
ASU 2014-09
REVENUE RECOGNITION
Allowance for doubtful accounts and customer deductions	$ 39	$ 32