Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) (USD $) In Millions	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Benefit obligations:
Tax effect on benefit obligation	$ 1	$ 2
Amounts reclassified to benefit obligations related to consolidation of VIEs	0	5
Net unrealized gains (losses) on derivatives:
Tax effect on gains (losses) during the period	0	1
Tax effect on amounts reclassified to income	0	1
Net unrealized gains (losses) on investments:
Tax effect on gains (losses) during the period	0	(6)
Amounts reclassified to benefit obligations related to consolidation of VIEs	0	(5)
Tax effect of foreign currency translation	$ 0	$ 0

Amounts Reclassified To Benefit Obligations Related To Consolidation Of Variable Interest Entities Tax.

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Amounts Reclassified To Benefit Obligations Related To Consolidation Of Variable Interest Entities Tax Two.

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Tax effects of the net changes to accumulated comprehensive income during the period related to benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 25

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Tax effect of the adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity.

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Tax effect on reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period.

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Tax effect on the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses.

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Tax effect on gross appreciation or the gross loss in value of the total of unsold securities during the period being reported on.

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