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Securities Securities - Realized Gains and Losses (Details) (Debt Securities [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Debt Securities [Member]
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| Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] | |||
| Gross Gains | $ 3,685 | $ 3,995 | $ 5,047 |
| Gross Losses | (311) | (1,469) | (324) |
| Net gains on sales of AFS debt securities | 3,374 | 2,526 | 4,723 |
| Income tax expense attributable to realized net gains on sales of AFS debt securities | $ 1,248 | $ 935 | $ 1,748 |
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- Definition
Income tax expense attributable to realized net gains on sales on debt securities. No definition available.
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- Definition
This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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