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Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Statement of Other Comprehensive Income [Abstract] |  |  |
Net earnings | $ 892 |  | $ 785
Other comprehensive income (loss) before income taxes: |  |  |
Unrealized foreign currency translation gains (losses) during period | (188) |  | (100)
Unrealized gains (losses) on investment securities: |  |  |
Unrealized holding gains (losses) on investment securities during period | (874) |  | 324
Reclassification adjustment for realized (gains) losses on investment securities included in net earnings | (58) |  | 129
Unrealized gains (losses) on derivatives during period | (7) |  | (12)
Pension liability adjustment during period | 5 |  | 5
Total other comprehensive income (loss) before income taxes | (1,122) |  | 346
Income tax expense (benefit) related to items of other comprehensive income (loss) | (58) |  | 311
Other comprehensive income (loss), net of income taxes | (1,064) | [1] | 35
Total comprehensive income (loss) | $ (172) |  | $ 820
[1] | All amounts are net of tax. Amounts in parentheses indicate debits.

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- Definition The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 30 -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. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=16317811 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e557-108580 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A5 -Appendix A + Details
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