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INCOME TAXES - DOMESTIC AND FOREIGN COMPONENTS OF INCOME (LOSS) FROM CONTINUING OPERATIONS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Disclosure [Abstract] |  |  |
Domestic | $ (1,632) | $ 3,431 | $ (609)
Foreign | 1,818 | 2,177 | 1,937
Income from continuing operations before income taxes | $ 186 | $ 5,608 | $ 1,328

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