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Consolidated Statement Of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Disclosure Consolidated Statement Of Comprehensive Income Loss [Abstract] |  |  |  |
Net income (loss) | $ (178) | $ 581 | $ (14) | $ 591
Unrealized gains (losses) on available-for-sale securities: [Abstract] |  |  |  |
Unrealized gains (losses) arising during the period | (153) | 139 | (140) | 186
Provision (benefit) for income taxes | (53) | 54 | (49) | 60
Total | (100) | 85 | (91) | 126
Reclassification adjustments for (gains) losses included in net income (loss) | 6 | (43) | (19) | 92
Provision (benefit) for income taxes | 2 | (15) | (7) | 32
Total | 4 | (28) | (12) | 60
Available-for-sale securities with other-than-temporary impairments: |  |  |  |
Other-than-temporary impairments and unrealized gains (losses) arising during the period | 2 | (2) | 7 | 9
Provision (benefit) for income taxes | 2 | (1) | 4 | 3
Total | 0 | (1) | 3 | 6
Reclassification adjustments for gains (losses) included in net income (loss) | (4) | 9 | (4) | 50
Provision (benefit) for income taxes | (1) | 3 | (1) | 18
Total | (3) | 6 | (3) | 32
Foreign currency translation: [Abstract] |  |  |  |
Net foreign currency translation gains (losses) | 4 | 0 | (39) | (11)
Provision (benefit) for income taxes | 0 | 0 | 0 | 1
Total | 4 | 0 | (39) | (12)
Total other comprehensive income (loss) | (95) | 62 | (142) | 212
Comprehensive income (loss) | $ (273) | $ 643 | $ (156) | $ 803

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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 Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 2: 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 3: 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 4: 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 5: 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 6: 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 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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