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Investments In Available-For-Sale Securities And Other Cost Investments (Unrealized Holding Gains And Losses) (Details) (Gross unrealized holding gains, USD $)
In Millions, unless otherwise specified |
Sep. 30, 2014
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Dec. 31, 2013
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Equity Securities
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| Schedule of Available-for-sale Securities [Line Items] | ||
| Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax | $ 1 | $ 6 |
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Debt Securities
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| Schedule of Available-for-sale Securities [Line Items] | ||
| Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax | $ 1 |
| X | ||||||||||
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- Definition
Accumulated appreciation or loss, net of tax, in value of the total of available-for-sale securities at the end of an accounting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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