Employee Savings and Stock Ownership Plans (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
U.S. Defined Contribution Plan
Schedule Of Defined Contribution Plans Disclosures
Company match of eligible compensation, high end of range	6.00%
Employer match of employee contributions, pre January 1, 2009, low end of range	60.00%
Employer match of employee contributions, pre January 1, 2009, high end of range	75.00%
Company match of eligible compensation, percent for employees hired on or after January 1, 2009.	100.00%
Company contribution to employer retirement income account for employees hired on or after January 1, 2009	3.00%
Tax benefit related to dividends paid on unallocated ESOP shares		$ 1	$ 2
Foreign Defined Contribution Plan
Schedule Of Defined Contribution Plans Disclosures
Expenses related to international defined contribution plans	36	$ 22	$ 23

- Definition

For a defined contribution plan, the maximum percentage of eligible compensation which the entity will match for employees hired after January 1, 2009.

+ Details

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- Definition

For a defined contribution plan, the maximum percentage of eligible compensation which the entity will match for employees hired prior to January 1, 2009

+ Details

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- Definition

For a defined contribution plan, the percentage of eligible compensation matched by the employer for plans with a higher match percentage.

+ Details

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- Definition

For a defined contribution plan, the percentage of eligible compensation matched by the employer for plans with a lower match percentage.

+ Details

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- Definition

For a defined contribution postretirement plan, the percentage of eligible compensation which the entity will contribute for employees hired after January 1, 2009.

+ Details

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- Details

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 11

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- Definition

The tax benefit resulting from dividends paid on preferred stock held by an employee stock option plan, when that stock is not a common stock equivalent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 90-4

+ Details

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