STOCKHOLDERS' EQUITY (Share Repurchase Programs) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Share Repurchase Programs [Line Items]
Value of shares repurchased	$ 85	$ 38	$ 189	$ 236
Shares repurchased (in shares)	577	253	1,240	1,676
$2 Billion Open-Market Purchase Program [Member]
Share Repurchase Programs [Line Items]
Value of shares repurchased	$ 85	$ 0	$ 85	$ 78
Shares repurchased (in shares)	577	0	577	591
Evergreen Program [Member]
Share Repurchase Programs [Line Items]
Value of shares repurchased	$ 0	$ 38	$ 104	$ 158
Shares repurchased (in shares)	0	253	663	1,085