SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - INCOME TAXES (Details) - USD ($) $ in Millions |
12 Months Ended | 24 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2018 |
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| U.S. Tax Reform Act | ||||
| U.S. income tax statutory rate (as a percent) | 21.00% | 21.00% | 35.00% | |
| Net tax benefits due to enactment of U.S. Tax Reform Act | $ 20 | |||
| Net tax benefits from due to remeasurement of deferred tax assets and liabilities | 135 | |||
| Income tax benefit from remeasurement of deferred assets and liabilities | $ 137 | |||
| Final tax expense from remeasurement of deferred assets and liabilities | $ 2 | |||
| Net tax expenses due to transition tax on deemed repatriation of deferred foreign income | $ 115 | |||
| Provisional tax expense due to transition tax on deemed repatriation of deferred foreign income | $ 85 | |||
| U.S. Tax Reform Act - Provisional measurement period adjustment | $ 30 | |||
| X | ||||||||||
- Definition No definition available No definition available.
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- Definition Amount of reasonable estimate for income tax expense from transition tax on deferred earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. No definition available.
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- Definition Amount of income tax expense (benefit) for measurement period of deferred tax adjustment from accounting for tax effect pursuant to Tax Cuts and Jobs Act of 2017. No definition available.
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| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of income tax expense (benefit) from effect of Tax Cuts and Jobs Act. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of reasonable estimate for income tax expense (benefit) for which accounting for tax effect for remeasurement of deferred tax from change in tax rate is incomplete pursuant to Tax Cuts and Jobs Act. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of income tax expense (benefit) for measurement period adjustment from accounting for tax effect pursuant to Tax Cuts and Jobs Act. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of income tax expense from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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