v2.4.0.6

Financial Instruments (Details Textual) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011 | Dec. 31, 2011
Financial Instruments (Textual) [Abstract] |  |  |  |  |
Federal Deposit Insurance Corporation guaranteed senior notes issued under the Temporary Liquidity Guarantee Program | $ 89.1 |  | $ 89.1 |  | $ 214.0
Original maturities of commercial paper and short-term debt securities |  |  | less than 90 days |  |
Average maturity of marketable securities, months |  |  | 13 months |  | 14 months
Impairments recognized in relation to our publicly-held strategic investments |  |  | 0 |  |
Impairment charges | $ 3.5 | $ 0.8 | $ 4.8 | $ 7.6 |

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- Definition Average remaining time to maturity of marketable debt securities, available-for-sale securities. + References No definition available. + Details
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- Definition Fair value of debt securities guaranteed by Federal Deposit Insurance Corporation under the Temporary Liquidity Guarantee Program. + References No definition available. + Details
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- Details
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- Definition Impairment charges related to investments in privately held companies. + References No definition available. + Details
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- Definition Impairment Charges related to investments in publicly held companies. + References No definition available. + Details
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- Definition Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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