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Investments (Investment Income (Loss), Net) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2012
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Jun. 30, 2011
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Jun. 30, 2012
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Jun. 30, 2011
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| Investments | ||||
| Gains on sales and exchanges of investments, net | $ 20 | $ 7 | $ 27 | $ 21 |
| Investment impairment losses | (9) | (3) | (21) | (3) |
| Unrealized gains (losses) on securities underlying prepaid forward sale agreements | (28) | 226 | 488 | 535 |
| Mark to market adjustment on derivative component of prepaid forward sale agreements | 20 | (186) | (450) | (447) |
| Interest and dividend income | 28 | 26 | 57 | 52 |
| Other, net | (23) | (9) | (1) | (8) |
| Investment income (loss), net | $ 8 | $ 61 | $ 100 | $ 150 |
| X | ||||||||||
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- Definition
Mark To Market Adjustment on Derivative Component Of Prepaid Forward Sale Agreements No definition available.
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- Definition
Other Investment Income (Loss), net No definition available.
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- Definition
The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Income derived from investments in debt and equity securities and on cash and cash equivalents. Interest income represents earnings which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. Dividend income represents a distribution of earnings to shareholders by investee companies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate amount of income from investments (for example, dividends) not considered a component of the entity's core operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The net realized gains or losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increases or decreases in the market value of unsold securities whose gains or losses were included in earnings, and which, were not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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