v2.4.0.6

Short-Term Investments Components Of Short-Term Investments (Components Of Short-Term Investments) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2011 days | Dec. 31, 2010
Schedule of Investments [Line Items] |  |
Average remaining maturity on short-term investments | 75 |
Average yield on short-term investments | 0.28% |
Short-term investments | $ 1,503 | $ 145
Other [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term investments | 289 |
Commercial Paper [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term investments | 1,013 |
U.S. Treasuries [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term investments | $ 201 | $ 145

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- Definition Average Days To Investment Maturity Date + References No definition available. + Details
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- Definition The interest rate for investments that have an interest rate. For fixed rate investments, this indicates the fixed interest rate. If the investment has a variable interest rate, the rate stated here may be the rate that is currently relevant. In this case the "Investment, Interest Rate is Current Rate for Variable Rate Investment Flag", "Investment, Interest Rate is Discount Rate at Purchase Flag", "Investment, Interest Rate Reflects Current Yield Flag" should be used. If one of these flags are not appropriate to explain the interest rate that is indicated, then a new flag should be added or an explanation should be included in "Investment, Additional Information". + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 + Details
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- Details
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- Definition Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 7 -Section 03 -Paragraph 1 -Subparagraph g Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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