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INCOME TAXES - ADDITIONAL INFORMATION (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Taxes [Line Items] |  |  |
Tax credit carryforwards | $ 1,025 |  |
Tax loss carryforward | 1,278 |  |
Deferred tax assets, operating loss carryforward | 232 |  |
Deferred tax assets, tax attributes | 48 |  |
Translation Adjustment | 214 |  |
Change in valuation allowance for deferred tax asset | 16 |  |
Withholding taxes on certain undistributed earnings of foreign subsidiaries anticipated to be repatriated | 6 |  |
The total gross unrecognized tax benefits | 31 |  |
Unrecognized tax benefits, if recognized, would affect the effective income tax rate | 30 |  |
The total amount of accrued interest and penalties | 4 | $ 3 |
Recognized income tax expense (benefits), interest and penalties | 2 | 2 | $ 1
Undistributed earnings of foreign subsidiaries | 1,807 | $ 1,575 |
Foreign Tax Credits Expiring Future Years |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforwards | 57 |  |
Foreign Tax Credits Expiring Future Years | Tax Year 2024 |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforwards | 8 |  |
Foreign Tax Credits Expiring Future Years | Tax Year 2025 |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforwards | 39 |  |
Foreign Tax Credits Expiring Future Years | Tax Years 2027 through 2030 |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforwards | 10 |  |
Without Expiry Date |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforwards | 253 |  |
Foreign |  |  |
Income Taxes [Line Items] |  |  |
Tax credit valuation allowance | 57 |  |
Settlement with Taxing Authority |  |  |
Income Taxes [Line Items] |  |  |
Unrecognized tax benefits, if recognized, would affect the effective income tax rate | 5 |  |
Possible benefit of unrecognized tax benefits | $ 6 |  |

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