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INCOME TAXES - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Income Tax Disclosure [Abstract] |  |  |  |  |
Benefit from income taxes | $ 77 | $ 112 | $ 61 | $ 138 |
Income tax benefit on ordinary loss |  |  | 50 | 39 |
Income tax benefit for discrete items |  |  | 11 | 99 |
Income tax benefit for legal settlements |  |  | 54 |  |
Provision related to withholding tax, intercompany dividends |  |  | 46 |  |
Tax benefit related to stock compensation |  |  | 7 | 4 |
Provision related to filing certain tax returns |  |  | 4 | 2 |
Tax benefit related to release of valuation allowance |  |  |  | 64 |
Provision (benefit) related to changes in uncertain tax positions |  |  |  | (12) |
Tax benefit related to change in New Jersey law |  |  |  | $ 17 |
Valuation allowance against deferred tax assets | 2,272 |  | 2,272 |  | $ 2,252
Unrecognized tax benefits including interest and penalties | 1,118 |  | 1,118 |  | 1,025
Unrecognized tax benefits related to interest and penalties | 52 |  | 52 |  | $ 49
Portion of unrecognized tax benefits, if recognized, would reduce the Company's effective tax rate | 542 |  | 542 |  |
Unrecognized tax benefit, amount possible to decrease in next twelve months | $ 198 |  | $ 198 |  |

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