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Financial Instruments (Realized And Unrealized Gains (Losses) On Financial Instruments) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||||||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Realized and unrealized gains on financial instruments, net | $ 232 | $ 68 | $ 260 | ||||
| Net impact from Non-strategic Securities | 310 | 150 | [1] | 415 | [1] | ||
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Non-Strategic Securities [Member]
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| Realized and unrealized gains on financial instruments, net | 310 | 254 | [1] | 669 | [1] | ||
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Borrowed Shares [Member]
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| Realized and unrealized gains on financial instruments, net | 0 | (104) | [1] | (254) | [1] | ||
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Exchangeable Senior Debentures [Member]
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| Realized and unrealized gains on financial instruments, net | 0 | (85) | (111) | ||||
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Other Financial Instruments [Member]
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| Realized and unrealized gains on financial instruments, net | $ (78) | $ 3 | $ (44) | ||||
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- Definition
Net impact from Non-strategic Securities. This is the difference between the Mark to market on the Non-strategic Securities and the borrowed shares positions on the same owned Non-strategic Securities. No definition available.
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- Definition
Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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