| **Discontinued Operations - Discontinued Operations (Details) (USD $)In Millions, unless otherwise specified** | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended |
|----------------------------------------------------------------------------------------------------------------|----------------|----------------|----------------|----------------|----------------|
||
| **Statements of Operations for Discontinued Operations [Line Items]**                                          |           |           |           |           |           |   |   |   |   |   |
| Proceeds from Divestiture of Businesses                                                                        |           |           |           |           |           |   |   |   | $ 19 | $ 33 |
| Asset impairment charges                                                                                       | 4              | 17             | 173            | 17             |           |   |   |   | 24 |   |
| Sales and revenues, net                                                                                        |           |           |           |           | 0              | 3 | 0 | 73 |   |   |
| Income (loss) before income taxes                                                                              |           |           |           |           | 1              | (10) | 3 | (40) |   |   |
| Income tax benefit (expense)                                                                                   |           |           |           |           | 0              | 0 | 0 | 0 |   |   |
| Income (loss) from discontinued operations, net of tax                                                         | 1              | (10)           | 3              | (40)           | 1              | (10) | 3 | (40) |   |   |
| Gain (Loss) on Disposition of Business                                                                         |           |           |           |           |           |   |   |   |   | $ 26 |

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| - Definition
Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.
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| - Definition
Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.
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| - Definition
Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.
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| - Definition
Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.
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| - Definition
Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.
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No definition available.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.
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| - Definition
The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.
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