| **INCOME TAXES - Additional Information (Details) - USD ($)**                                                                                                | 3 Months Ended | 12 Months Ended |              |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|-----------------|--------------|
||
| **Operating Loss Carryforwards [Line Items]**                                                                                                                |           |            |         |   |   |   |   |
| Accumulated undistributed earnings in foreign subsidiaries                                                                                                   | $ 55,000,000   |            |         | $ 55,000,000 |   |   |   |
| One-time transition tax on undistributed foreign earnings                                                                                                    |           |            |         | $ 0 |   |   |   |
| U.S. statutory income tax rate                                                                                                                               |           |            |         | 28.10% | 35.00% | 35.00% |   |
| Provisional income tax benefit from the impact of lower corporate tax rates in estimated annual rate for fiscal year                                         |           |            |         | $ 26,000,000 |   |   |   |
| Provisional income tax benefit from the impact of lower corporate tax rates in estimated annual rate for fiscal yea per diluted share (in dollars per share) |           |            |         | $ 0.21 |   |   |   |
| Estimated write-down expense to deferred tax assets balance due to change in enacted tax rate                                                                |           |            | $ 52,000,000 | $ 2,000,000 |   |   |   |
| Estimated write-down expense to deferred tax assets balance due to change in enacted tax rate (in dollars per share)                                         |           |            | $ 0.43       |   |   |   |   |
| Income tax benefit recorded due to change in estimated write-down of net tax asset balance                                                                   | $ 17,000,000   |            | $ 33,000,000 |   |   |   |   |
| Income tax benefit recorded due to change in estimated write-down of net tax asset balance per diluted share (in dollars per share)                          | $ 0.15         |            | $ 0.27       |   |   |   |   |
| Voluntary contributions by employer to pension plan                                                                                                          |           |            |         | 302,000,000 | $ 587,000,000 |   |   |
| Deferred tax liability for undistributed foreign earnings                                                                                                    | $ 24,000,000   |            |         | 24,000,000 |   |   |   |
| Increase in net deferred tax liability due to potential cumulative basis differences in netted foreign E&P                                               | 116,000,000    |            |         | $ 116,000,000 |   |   |   |
| Tax loss and credit carryforwards, expiration dates, minimum                                                                                                 |           |            |         | 2 years |   |   |   |
| Income (loss) from continuing operation before income taxes of international subsidiaries                                                                    |           |            |         | $ 43,000,000 | 42,000,000 | $ 42,000,000 |   |
| Income taxes paid                                                                                                                                            |           |            |         | 8,000,000 | 51,000,000 | 53,000,000 |   |
| Unrecognized tax benefits                                                                                                                                    | 102,000,000    |            |         | 102,000,000 | 90,000,000 | $ 63,000,000 | $ 124,000,000 |
| Unrecognized tax benefits that would favorably impact effective tax rates in the event that the tax benefits are eventually recognized                       | 92,000,000     |            |         | 92,000,000 | 74,000,000 |   |   |
| Expected additional current tax expense that will offset increase in unrecognized tax benefits                                                               | 14,000,000     |            |         | 14,000,000 |   |   |   |
| Accrued interest and penalties related to unrecognized tax benefits                                                                                          | 4,000,000      |            |         | 4,000,000 | 5,000,000 |   |   |
| Accrued interest and penalties that could favorably impact future tax rates                                                                                  | 3,000,000      |            |         | 3,000,000 | 3,000,000 |   |   |
| Federal                                                                                                                                                      |           |            |         |   |   |   |   |
| **Operating Loss Carryforwards [Line Items]**                                                                                                                |           |            |         |   |   |   |   |
| Operating loss carryforwards                                                                                                                                 | 25,000,000     |            |         | 25,000,000 |   |   |   |
| Federal | Capital Loss Carryforward                                                                                                                          |           |            |         |   |   |   |   |
| **Operating Loss Carryforwards [Line Items]**                                                                                                                |           |            |         |   |   |   |   |
| Capital loss carryforwards                                                                                                                                   | 367,000,000    |            |         | 367,000,000 |   |   |   |
| International                                                                                                                                                |           |            |         |   |   |   |   |
| **Operating Loss Carryforwards [Line Items]**                                                                                                                |           |            |         |   |   |   |   |
| Operating loss carryforwards                                                                                                                                 | 71,000,000     |            |         | 71,000,000 |   |   |   |
| State and Local                                                                                                                                              |           |            |         |   |   |   |   |
| **Operating Loss Carryforwards [Line Items]**                                                                                                                |           |            |         |   |   |   |   |
| Operating loss carryforwards                                                                                                                                 | $ 543,000,000  |            |         | 543,000,000 |   |   |   |
| Pension                                                                                                                                                      |           |            |         |   |   |   |   |
| **Operating Loss Carryforwards [Line Items]**                                                                                                                |           |            |         |   |   |   |   |
| Voluntary contributions by employer to pension plan                                                                                                          |           |            |         | 303,000,000 | 591,000,000 |   |   |
| U.S. SRP | Pension                                                                                                                                           |           |            |         |   |   |   |   |
| **Operating Loss Carryforwards [Line Items]**                                                                                                                |           |            |         |   |   |   |   |
| Voluntary contributions by employer to pension plan                                                                                                          |           | $ 300,000,000   |         | $ 300,000,000 | $ 400,000,000 |   |   |

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Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.
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Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiaries and other recognized entities not within the country of domicile of the entity.
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Amount of contribution received by defined benefit plan from employer which increases plan assets.
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).
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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.
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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.
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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.
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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.
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Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.
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Amount of unrecognized tax benefits.
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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.
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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.
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