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

| X                                                                                                                                                                                                                                                                                                                                                                                                                |
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| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
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| - Definition
Number of shares that have been repurchased during the period and are being held in treasury.
+ References
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| - Definition
Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.
+ References
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| X                                                                                                                                                                       |
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| X                                                                                                                                                     |
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