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STOCKHOLDERS' EQUITY - Repurchases of Common Stock (Details) - USD ($) shares in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Mar. 31, 2020 | Mar. 31, 2016
Class of Stock [Line Items] |  |  |  |  |  |
Remaining authorized repurchase amount under stock repurchase programs | $ 5,800,000,000 |  | $ 5,800,000,000 |  |  |
Shares repurchased and retired (in shares) | 1.2 | 0.6 | 6.7 | 5.4 |  |
Amount | $ 72,000,000 | $ 43,000,000 | $ 424,000,000 | $ 352,000,000 |  |
2016 Stock Repurchase Program |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Authorized amount under stock repurchase program |  |  |  |  |  | $ 12,000,000,000
2020 Stock Repurchase Program |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Authorized amount under stock repurchase program |  |  |  |  | $ 5,000,000,000 |

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