Pension and Other Postretirement Employee Benefit Plans (Details 8)	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009
Defined benefit pension plans, U.S. [Member]
Asset category
Debt securities - Target Allocation, Minimum	10.00%
Debt securities - Target Allocation, Maximum	30.00%
Debt securities - % of plan assets	29.00%	29.00%
Equity securities - Target Allocation, Minimum	25.00%
Equity securities - Target Allocation, Maximum	60.00%
Equity securities - % of plan assets	40.00%	40.00%
Real estate - Target Allocation, Minimum	5.00%
Real estate - Target Allocation, Maximum	20.00%
Real estate - % of plan assets	4.00%	4.00%
Alternatives - Target Allocation, Minimum	15.00%
Alternatives - Target Allocation, Maximum	50.00%
Alternatives - % of plan assets	27.00%	27.00%
Total - Target Allocation	100.00%
Total - % of plan assets	100.00%	100.00%
Defined benefit pension plans, Non-U.S. [Member]
Asset category
Debt securities - % of plan assets	71.00%	75.00%
Equity securities - % of plan assets	28.00%	23.00%
Real estate - % of plan assets		1.00%
Alternatives - % of plan assets	1.00%	1.00%
Total - Target Allocation	100.00%
Total - % of plan assets	100.00%	100.00%
Debt securities - Target Allocation	72.00%
Equity securities - Target Allocation	26.00%
Real estate - Target Allocation	1.00%
Alternatives - Target Allocation	1.00%
OPEB Plans [Member]
Asset category
Debt securities - % of plan assets	50.00%	50.00%
Equity securities - % of plan assets	50.00%	50.00%
Real estate - % of plan assets	0.00%	0.00%
Alternatives - % of plan assets	0.00%	0.00%
Total - Target Allocation	100.00%
Total - % of plan assets	100.00%	100.00%
Debt securities - Target Allocation	50.00%
Equity securities - Target Allocation	50.00%

Asset category.

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- Definition

The aggregate target allocation percentage of the fair value of investments of total plan assets held as of the measurement date.

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The percentage of the fair value of debt securities to the fair value of total plan assets held as of the measurement date.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

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The percentage of the fair value of equity securities to the fair value of total plan assets held as of the measurement date.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

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The percentage of the fair value of investments other than debt securities, equity securities, and real estate to the fair value of total plan assets held as of the measurement date.

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

-Publisher FASB

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The percentage of the fair value of real estate to the fair value of total plan assets held as of the measurement date.

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

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-Name Statement of Financial Accounting Standard (FAS)

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Target allocation percentage of investments in debt securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

+ References

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

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Target allocation maximum percentage of investments in debt securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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Target allocation minimum percentage of investments in debt securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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

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Target allocation percentage of investments in equity securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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Target allocation maximum percentage of investments in equity securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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Target allocation minimum percentage of investments in equity securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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Target allocation percentage in other than debt securities, equity securities, and real estate to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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Target allocation maximum percentage in other than debt securities, equity securities, and real estate to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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Target allocation minimum percentage in other than debt securities, equity securities, and real estate to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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Target allocation percentage of investments in real estate to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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Target allocation maximum percentage of investments in real estate to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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Target allocation minimum percentage of investments in real estate to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.

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The aggregate percentage of the fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of total plan assets held as of the measurement date.

+ References

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

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-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

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