| **INCOME TAXES (Narrative) (Details) - USD ($) $ in Millions**                                                 | 3 Months Ended | 12 Months Ended |
|----------------------------------------------------------------------------------------------------------------|----------------|-----------------|
||
| **Tax Credit and Operating Loss Carryforwards [Line Items]**                                                   |           |            |   |   |   |
| Statutory federal tax rate                                                                                     |           |            | 21.00% | 28.10% | 35.00% |
| Tax Cuts And Jobs Act Of 2017, provisional income tax benefit                                                  | $ (81)         | $ (81)          |   |   |   |
| Unrecognized tax benefits, income tax penalties and interest accrued                                           |           |            | $ 4 | $ 5 |   |
| Unrecognized tax expense (benefit), income tax penalties and interest expense                                  |           |            | (1) | 1 | $ (1) |
| Unrecognized tax benefits that would impact effective tax rate                                                 |           |            | 23 | 33 | 28 |
| Gross unrecognized tax benefits recognized upon the expiration of the applicable statute of limitations        |           |            | 3 | $ 2 | $ 1 |
| Domestic Tax Authority [Member] | Foreign Tax Credit Carryforward [Member]                                     |           |            |   |   |   |
| **Tax Credit and Operating Loss Carryforwards [Line Items]**                                                   |           |            |   |   |   |
| Tax credit carryforward, amount                                                                                |           |            | 35 |   |   |
| Foreign Tax Authority [Member] | Not Subject to Expiration [Member]                                            |           |            |   |   |   |
| **Tax Credit and Operating Loss Carryforwards [Line Items]**                                                   |           |            |   |   |   |
| Operating loss carryforwards                                                                                   |           |            | 9 |   |   |
| Foreign Tax Authority [Member] | Not Subject to Expiration [Member] | Foreign Tax Credit Carryforward [Member] |           |            |   |   |   |
| **Tax Credit and Operating Loss Carryforwards [Line Items]**                                                   |           |            |   |   |   |
| Tax credit carryforward, amount                                                                                |           |            | 24 |   |   |
| Foreign Tax Authority [Member] | Subject to Expiration [Member]                                                |           |            |   |   |   |
| **Tax Credit and Operating Loss Carryforwards [Line Items]**                                                   |           |            |   |   |   |
| Operating loss carryforwards                                                                                   |           |            | $ 19 |   |   |

| X                                                                                                                                                                                                                                                                                       |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Tax Credit and Operating Loss Carryforwards [Line Items]
+ References
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| - Definition
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit)
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss).
+ References
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| - Definition
Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.
+ References
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| - Definition
The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.
+ References
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| - Definition
Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.
+ References
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| - Definition
Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.
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| - Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.
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