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TREASURY STOCK (Details) - USD ($) shares in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Authorized stock repurchase programs (in shares) | 2 | 2 | 70 | 682 |  |
Authorized stock repurchase programs | $ 3,000,000 | $ 4,000,000 | $ 158,000,000 | $ 1,259,000,000 |  |
General authorization for shares withheld on stock award vesting (in shares) | 2 | 2 | 70 | 81 |  |
General authorization for shares withheld on stock award vesting | $ 3,000,000 | $ 4,000,000 | $ 158,000,000 | $ 137,000,000 |  |
Payments related to tax withholding for share-based compensation |  |  | 159,000,000 | $ 137,000,000 |  |
2019 Share Repurchase Program |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Remaining authorization to repurchase common stock | $ 10,400,000,000 |  | $ 10,400,000,000 |  | $ 10,400,000,000 |
Amount of common stock repurchases authorized |  |  |  |  |  | $ 15,000,000,000
Common Stock Repurchase Program |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Authorized stock repurchase programs (in shares) | 0 | 0 | 0 | 601 |  |
Authorized stock repurchase programs | $ 0 | $ 0 | $ 0 | $ 1,122,000,000 |  |

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