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INCOME TAXES (Schedule of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized Tax Benefits | $ 107 | $ 29 | $ 29 | $ 33
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions | 7 | 0 | 4 |
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions | (4) | 0 | 0 |
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations | 0 | 0 | (8) |
Other Increases decreases to unrecognized tax benefits | 75 | 0 | $ 0 |
Other Noncurrent Liabilities [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized Tax Benefits | 2 | 4 |  |
Other Current Liabilities [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized Tax Benefits | 9 |  |  |
Other Liabilities [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized Tax Benefits | 11 |  |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 1 | $ 4 |  |
Other Noncurrent Assets [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized Tax Benefits | $ 96 |  |  |

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