Income Taxes (Details Textuals) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Income Taxes (Textuals) [Abstract]
Unrecognized tax benefits as a result of potential resolutions of prior years' tax	$ 918		$ 918
Unrecognized tax benefits, amounts recorded to equity	677		677
Unrecognized tax benefits impact not possible to quantify	241		241
Tax years open			2005 through 2007
Tax benefit due to foreign tax credits		77	146	77
Tax Benefits				$ 102
Effective tax rate	33.20%	27.80%	30.40%	28.80%

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Unrecognized tax benefits relating to amounts recorded to equity that, if recognized, would not impact the effective rate.

+ References

No definition available.

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- Definition

Represents the remaining decrease or increase in unrecognized tax benefits within the next 12 months for which it is not possible to quantify the impact of the increase or decrease on the effective tax rate and net income.

+ References

No definition available.

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- Definition

Identification, by major jurisdiction, of tax years that remain open to examination under enacted tax laws.

+ References

No definition available.

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

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-Article 4

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 47

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-Name Accounting Standards Codification

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(2))

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- Definition

The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to other deductions received under enacted tax laws not otherwise listed in the existing taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

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- Definition

The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name FASB Interpretation (FIN)

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-Subparagraph d

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- Definition

Reflects the effects of adjustments of previously recorded tax expense, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, IRS tax settlement and unusual repatriation of foreign earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Paragraph 10A, 10B, 10C

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