STOCKHOLDERS' EQUITY (Narrative) (Details)	12 Months Ended
	Jun. 30, 2020 USD ($) repurchase_program	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)
Intercompany Foreign Currency Balance [Line Items]
Number of repurchase programs | repurchase_program	2
Amounts reclassified from Accumulated other comprehensive net (loss) income	$ (17,000,000)	$ (12,000,000)	$ (14,000,000)
Long term intercompany loans [Member]
Intercompany Foreign Currency Balance [Line Items]
Adjustment for long-term intercompany transactions, gross of tax	5,000,000	3,000,000	9,000,000
Amounts reclassified from Accumulated other comprehensive net (loss) income	0	$ 0	$ 0
$2 Billion Open-Market Purchase Program [Member]
Intercompany Foreign Currency Balance [Line Items]
Authorized repurchase amount	2,000,000,000
Evergreen Program [Member]
Intercompany Foreign Currency Balance [Line Items]
Authorization limit	$ 0