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Investment Securities (Details 3) (Level 3 Inputs, USD $) In Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2011 | Sep. 30, 2010
Investment securities |  |  |  |
Total pre-tax gains (losses) included in earnings attributable to unrealized investment gains (losses) for Level 3 investments | $ (34.2) | $ 14.3 | $ (38.4) | $ 26.9
Fixed maturity investments |  |  |  |
Investment securities |  |  |  |
Total pre-tax gains (losses) included in earnings attributable to unrealized investment gains (losses) for Level 3 investments | (13.5) | 3.3 | (14.9) | 9.5
Common Equity Securities |  |  |  |
Investment securities |  |  |  |
Total pre-tax gains (losses) included in earnings attributable to unrealized investment gains (losses) for Level 3 investments | (17.5) | 2.5 | (17.0) | (20.0)
Other long-term investments. |  |  |  |
Investment securities |  |  |  |
Total pre-tax gains (losses) included in earnings attributable to unrealized investment gains (losses) for Level 3 investments | $ (3.2) | $ 8.5 | $ (6.5) | $ 37.4

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- Definition The aggregate increase (decrease) in the market value of unsold investments whose gains (losses) are included in earnings. + Details
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