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INCOME TAXES (Provision for (benefit from) income taxes) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Current Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |  |  |
Federal |  |  | $ (46,000,000) | $ 3,000,000 | $ (164,000,000)
State |  |  | (1,000,000) | 10,000,000 | (17,000,000)
Foreign |  |  | 1,445,000,000 | 1,426,000,000 | 352,000,000
Total current |  |  | 1,398,000,000 | 1,439,000,000 | 171,000,000
Deferred income taxes: |  |  |  |  |
Federal |  |  | 106,000,000 | (64,000,000) | (137,000,000)
State |  |  | 8,000,000 | (10,000,000) | (41,000,000)
Foreign |  |  | 102,000,000 | (89,000,000) | 451,000,000
Total deferred |  |  | 216,000,000 | (163,000,000) | 273,000,000
Adjustments |  |  | (504,000,000) | (393,000,000) | (13,000,000)
Operating loss carryforwards |  |  | (119,000,000) | 0 | (60,000,000)
Provision for income taxes |  |  | 991,000,000 | 883,000,000 | 371,000,000
Tax Cuts and Jobs Act of 2017, provisional income tax expense (benefit) |  |  | (123,000,000) | (393,000,000) | 0
Change in PT-FI tax rates |  |  | 504,000,000 | 0 | $ 0
Tax Cuts and Jobs Act of 2017, deferred tax assets, existing income tax expense (benefit) | $ 32,000,000 | $ 975,000,000 | 123,000,000 | (272,000,000) |
Tax Cuts and Jobs Act of 2017, change in tax rate, provisional income tax expense (benefit) | $ 0 | $ (121,000,000) |  | (121,000,000) |
Minimum Tax Credit Carryforwards [Member] |  |  |  |  |
Deferred income taxes: |  |  |  |  |
Federal Income Tax Expense (Benefit), Continuing Operations |  |  | 76,000,000 | $ 438,000,000 |
Foreign Income Tax Expense (Benefit), Continuing Operations |  |  | 47,000,000 |  |
Tax Authority, In Papau, Indonesia |  |  |  |  |
Deferred income taxes: |  |  |  |  |
Change in PT-FI tax rates |  |  | $ 504,000,000 |  |

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