FAIR VALUE MEASUREMENTS - Hierarchy For Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Recurring basis - USD ($) $ in Millions	Mar. 31, 2020	Jun. 30, 2019
Assets:
Foreign currency forward contracts	$ 72	$ 27
Interest rate-related derivatives	14	3
Total	86	30
Liabilities:
Foreign currency forward contracts	44	6
Interest rate-related derivatives	1	26
Contingent consideration	27	36
Total	72	68
Level 2
Assets:
Foreign currency forward contracts	72	27
Interest rate-related derivatives	14	3
Total	86	30
Liabilities:
Foreign currency forward contracts	44	6
Interest rate-related derivatives	1	26
Total	45	32
Level 3
Liabilities:
Contingent consideration	27	36
Total	$ 27	$ 36