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STOCKHOLDERS' EQUITY (Share Repurchase Programs) (Details) - USD ($) shares in Thousands, $ in Millions | 12 Months Ended
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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

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