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Securities Available for Sale, Credit Loss Component (Details) (Debt Securities [Member], USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
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Mar. 31, 2013
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Mar. 31, 2012
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Debt Securities [Member]
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| Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] | ||
| Credit loss component, beginning of period | $ 1,289 | $ 1,272 |
| Initial credit impairments | 1 | 5 |
| Subsequent credit impairments | 22 | 45 |
| Total Additions | 23 | 50 |
| For securities sold | (52) | (12) |
| For recoveries of previous credit impairments | (8) | (8) |
| Total reductions | (60) | (20) |
| Credit loss component, end of period | $ 1,252 | $ 1,302 |
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- Definition
This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which a previous OTTI was recognized and the investor does not intend to sell the debt security and it is not more likely than not that the investor will be required to sell the debt security before recovery of its amortized cost basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which no such other than temporary impairment (OTTI) was previously recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (a component of shareholders' equity). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This item represents reductions in the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held due to increases in cash flows expected to be collected and recognized over the remaining life of the security. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This item represents reductions in the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security because of the sale of impaired securities during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Other Than Temporary Impairment Credit Losses Investments Portion Recognized In Earnings Net Available for sale Securities No definition available.
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- Definition
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Total Reductions. No definition available.
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