| **Income Taxes (Details) (USD $)In Millions, unless otherwise specified** | 3 Months Ended | 6 Months Ended |
|---------------------------------------------------------------------------|----------------|----------------|
||
| **Income Tax Disclosure [Abstract]**                                      |           |           |   |   |
| Current                                                                   | $ 71           | $ 56           | $ 108 | $ 100 |
| Deferred                                                                  | 57             | 59             | 106 | 100 |
| Total Income Tax Provision                                                | $ 128          | $ 115          | $ 214 | $ 200 |
| Effective Tax Rate                                                        | 26.40%         | 29.50%         | 26.60% | 27.60% |
| US                                                                        |           |           |   |   |
| **Income Tax Examination [Line Items]**                                   |           |           |   |   |
| Income Tax Examination, Year under Examination                            |           |           | 2008 |   |
| Equatorial Guinea                                                         |           |           |   |   |
| **Income Tax Examination [Line Items]**                                   |           |           |   |   |
| Income Tax Examination, Year under Examination                            |           |           | 2008 |   |
| Israel                                                                    |           |           |   |   |
| **Income Tax Examination [Line Items]**                                   |           |           |   |   |
| Income Tax Examination, Year under Examination                            |           |           | 2008 |   |
| China                                                                     |           |           |   |   |
| **Income Tax Examination [Line Items]**                                   |           |           |   |   |
| Income Tax Examination, Year under Examination                            |           |           | 2010 |   |

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| - Definition
The component of income tax expense for the period representing amounts of income taxes paid or payable (or refundable) for the period for all income tax obligations as determined by applying the provisions of relevant enacted tax laws to relevant amounts of taxable Income or Loss from continuing operations.
+ References
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| - Definition
The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations.
+ References
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| - Definition
A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.
+ References
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| - Definition
Tax year being audited in the income tax examination, in CCYY format.
+ References
No definition available.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to pretax Income or Loss from continuing operations; income tax expense or benefit may include interest and penalties on tax uncertainties based on the entity's accounting policy.
+ References
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