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.

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+ Details

Financial Instruments (Details Textuals) (USD $) In Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Financial Instruments (Textuals) [Abstract]
Federal Deposit Insurance Corporation guaranteed senior notes issued under the Temporary Liquidity Guarantee Program	$ 214.2		$ 163.5		$ 214.2
Original maturities of commercial paper and short-term debt securities					less than 90 days
Average maturity of marketable securities, months			11 months		13 months
Gain (loss) from sale of strategic equity investments		13.8
Impairment charges for publicly - held strategic investments, investments in venture capital funds and investments in privately - held companies	$ 0.8			$ 2.8	$ 7.6	$ 19.8