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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, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Share Repurchase Programs [Line Items] |  |  |
Stock repurchased during period, value | $ 242 | $ 660 | $ 272
Stock repurchased during period, shares (in shares) | 1,531 | 4,474 | 2,171
$2 Billion Open-Market Purchase Program [Member] |  |  |
Share Repurchase Programs [Line Items] |  |  |
Stock repurchased during period, value | $ 85 | $ 328 | $ 95
Stock repurchased during period, shares (in shares) | 577 | 2,266 | 749
Evergreen Program [Member] |  |  |
Share Repurchase Programs [Line Items] |  |  |
Stock repurchased during period, value | $ 157 | $ 332 | $ 177
Stock repurchased during period, shares (in shares) | 954 | 2,208 | 1,422

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