Amount recognized in accumulated other comprehensive income, net of tax, to reflect the write-down of the amortized cost basis of available-for-sale debt securities for other than temporary impairments.

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- Definition

Accumulated Other Comprehensive Income Loss.

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- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at fiscal year-end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, and unrealized gains and losses on certain investments in debt and equity securities as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 130

-Paragraph 14, 17, 26

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 31

-Article 5

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- Definition

Cumulative effect of initial adoption of new accounting principle on beginning retained earnings, net of tax. This element can be used, generally, for the adjustment to retained earnings of a new accounting principle.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 154

-Paragraph 17, 18

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- Definition

Net of tax effect change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges after taxes. A cash flow hedge is a hedge of the exposure to variability in the cash flows of a recognized asset or liability or a forecasted transaction that is attributable to a particular risk. The change includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 130

-Paragraph 14, 17, 20, 26

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 31, 46

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 38

-Subparagraph c(3)

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 46

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 130

-Paragraph 24

-Subparagraph b

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 130

-Paragraph 14, 17, 20, 24, 26

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- Definition

This element represents Other Comprehensive Income (Loss), Net of Tax, for the period. Includes deferred gains (losses) on qualifying hedges, unrealized holding gains (losses) on available-for-sale securities, minimum pension liability, and cumulative translation adjustment.

+ 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 22, 23, 24, 25

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 31

-Article 5

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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- Definition

Net of tax effect of the 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.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 130

-Paragraph 18, 19

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 38

-Subparagraph c(3)

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 130

-Paragraph 24

-Subparagraph b

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 31, 46

+ Details

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Period Type:	duration

- Definition

Current period adjustment in other comprehensive income reflecting gains (losses) on foreign currency transactions that are designated as, and are effective as, hedges of a net investment in a foreign entity, net of tax effect.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44C

-Subparagraph b(2)

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 52

-Paragraph 20

-Subparagraph a

+ Details

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- Definition

Current period translation adjustment resulting from translating foreign currency financial statements into the reporting currency. Adjustment shall not be included in determining net income, but shall be reported in other comprehensive income.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 130

-Paragraph 23, 24, 25

+ Details

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Accumulated Other Comprehensive Income/(Loss) (Details) (USD $) In Millions	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010	Dec. 31, 2010	Dec. 31, 2009
Accumulated other comprehensive income/(loss) [Abstract]
Beginning Balance	$ 1,001	$ (91)
Cumulative effect of change in accounting principle		(129)
Net change	(289)	981
Ending Balance	712	761
Accumulated other comprehensive income/(loss) (Numeric) [Abstract]
After-tax unrealized losses not related to credit on debt securities	(65)	(193)	(81)	(226)
After-tax gains/(losses) on foreign currency translation	262	(170)
After-tax gains/(losses) on hedges	(238)	201
After-tax gains/(losses) recognized in income on cash flow hedges	71	(2)
After-tax gains/(losses) representing the net change in derivative cash flow hedges fair value	(8)	83
Unrealized gains/(losses) on AFS securities [Member]
Accumulated other comprehensive income/(loss) [Abstract]
Beginning Balance	2,498	2,032
Cumulative effect of change in accounting principle		(129)
Net change	(251)	796
Ending Balance	2,247	2,699
Translation adjustments, net of hedges [Member]
Accumulated other comprehensive income/(loss) [Abstract]
Beginning Balance	253	(16)
Cumulative effect of change in accounting principle		0
Net change	24	31
Ending Balance	277	15
Cash flow hedges [Member]
Accumulated other comprehensive income/(loss) [Abstract]
Beginning Balance	206	181
Cumulative effect of change in accounting principle		0
Net change	(79)	85
Ending Balance	127	266
Net loss and prior service costs/(credit) of defined benefit pension and OPEB plans [Member]
Accumulated other comprehensive income/(loss) [Abstract]
Beginning Balance	(1,956)	(2,288)
Cumulative effect of change in accounting principle		0
Net change	17	69
Ending Balance	(1,939)	(2,219)
Accumulated other comprehensive income/(loss) [Member]
Accumulated other comprehensive income/(loss) [Abstract]
Cumulative effect of change in accounting principle		(129)
Net change	(289)	981
Variable Interest Entity, Primary Beneficiary [Member]
Accumulated other comprehensive income/(loss) [Abstract]
Cumulative effect of change in accounting principle		$ 129