STOCKHOLDERS' EQUITY (Share Repurchase Programs) (Details) - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Share Repurchase Programs [Line Items]
Stock repurchased during period, value	$ 660	$ 272	$ 189
Stock repurchased during period, shares (in shares)	4,474	2,171	1,505
$2 Billion Open-Market Purchase Program [Member]
Share Repurchase Programs [Line Items]
Stock repurchased during period, value	$ 328	$ 95
Stock repurchased during period, shares (in shares)	2,266	749
$750 Million Open-Market Purchase Program [Member]
Share Repurchase Programs [Line Items]
Stock repurchased during period, value			$ 0
Stock repurchased during period, shares (in shares)			0
Evergreen Program [Member]
Share Repurchase Programs [Line Items]
Stock repurchased during period, value	$ 332	$ 177	$ 189
Stock repurchased during period, shares (in shares)	2,208	1,422	1,505