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Post Retirement and Other Long Term Employees Benefits (Details) (Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Post Retirement and Other Long Term Employees Benefits (Textual) [Abstract]
Expected amortization of actuarial losses in year 2012	$ 11
Expected amortization of past service cost in year 2012	1
Employer contributions	30	24
Expected contribution in cash	21
Accrued benefits related to defined contribution pension plans	17	14
Annual cost of defined contribution plans	98	89	81
Plan assets reclassified from level 1 to level 2	$ 54

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Defined Contribution Plan Accrued Benefits.

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- Definition

The amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

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- Definition

The amounts in accumulated other comprehensive income related to prior service cost or credit expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

+ References

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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The increase in the fair value of plan assets from contributions made by the employer.

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The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

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Transfers in and out of Level 3. For example, transfers due to changes in the observability of significant inputs.

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The amount of the cost recognized during the period for defined contribution plans.

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