| **Income Taxes - Narrative (Details) (USD $)In Millions, unless otherwise specified**                     | 12 Months Ended |        | 2 Months Ended | 12 Months Ended |
|-----------------------------------------------------------------------------------------------------------|-----------------|--------|----------------|-----------------|
||
| **Operating Loss Carryforwards [Line Items]**                                                             |            |   |           |            |   |   |   |   |   |   |   |
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense                                      | $ 6             | $ (11) | $ 2            |            |   |   |   |   |   |   |   |
| Deferred Tax Assets, Operating Loss Carryforwards, Domestic                                               |            | 546    |           |            |   |   |   |   |   |   |   |
| Total income tax benefit (expense)                                                                        | (171)           | 1,780  | (1,417)        | 220             | 2,000 | (1,500) |   |   | 171 | (212) | (8) |
| Adjustments to Additional Paid in Capital, Other                                                          | 45              | (26)   | 45             |            |   |   |   |   |   |   |   |
| Deferred tax benefit                                                                                      |            |   |           |            | (189) |   |   |   |   |   |   |
| Income tax benefit                                                                                        |            |   | 42             |            |   |   |   |   |   |   |   |
| Undistributed earnings of foreign subsidiaries                                                            | 482             |   |           |            |   |   |   |   |   |   |   |
| State NOL carryforwards                                                                                   |            | 117    |           |            |   |   |   |   |   |   |   |
| Foreign NOL carryforwards                                                                                 |            | 177    |           |            |   |   |   |   |   |   |   |
| Net operating loss (“NOL”) carry forwards                                                   | 840             | 583    |           |            |   |   | 61 |   |   |   |   |
| Less: Valuation allowances                                                                                | 2,773           | 2,664  |           |            |   |   |   |   |   |   |   |
| Income Taxes Percent Likelihood Of Being Realized Upon Settlement                                         |            | 50.00% |           |            |   |   |   |   |   |   |   |
| Liability for uncertain tax positions                                                                     | 88              | 90     |           |            |   |   |   |   |   |   |   |
| Offsetting tax benefits associated with the correlative effects of potential transfer pricing adjustments |            | 35     |           |            |   |   |   |   |   |   |   |
| Unrecognized tax benefits that would not impact effective tax rate                                        | 6               |   |           |            |   |   |   |   |   |   |   |
| Liability for Uncertain Tax Benefits term range                                                           | 12              |   |           |            |   |   |   |   |   |   |   |
| Decrease to uncertain tax positions                                                                       |            |   |           |            |   |   |   | $ 8 |   |   |   |

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Income Taxes Percent Likelihood Of Being Realized Upon Settlement
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Liability for Uncertain Tax Benefits term range
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offsetting tax benefits associated with the correlative effects of potential transfer pricing adjustments
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Unrecognized Tax Benefits that Would Not Impact Effective Tax Rate
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| X                                                                                                                                                                                                                                                                                                                |
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| - Definition
Amount of other increase (decrease) in additional paid in capital (APIC).
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| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.
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| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.
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| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.
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| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.
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| - Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.
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| - Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
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| - Definition
Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.
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| - Definition
Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.
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| - Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.
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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.
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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.
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The amount of the change in the period in the valuation allowance for a specified deferred tax asset.
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