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Investment Securities (Details 3) (Level 3 Inputs, USD $) In Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2011 | Jun. 30, 2010 | Jun. 30, 2011 | Jun. 30, 2010
Investment securities |  |  |  |
Total pre-tax gains (losses) included in earnings attributable to unrealized investment gains (losses) for Level 3 investments | $ (4.2) | $ (30.0) | $ (11.8) | $ 12.6
Fixed maturity investments |  |  |  |
Investment securities |  |  |  |
Total pre-tax gains (losses) included in earnings attributable to unrealized investment gains (losses) for Level 3 investments | (3.3) | (3.4) | (1.4) | 6.2
Common Equity Securities |  |  |  |
Investment securities |  |  |  |
Total pre-tax gains (losses) included in earnings attributable to unrealized investment gains (losses) for Level 3 investments | 1.3 | (19.1) | (0.5) | (22.5)
Other long-term investments. |  |  |  |
Investment securities |  |  |  |
Total pre-tax gains (losses) included in earnings attributable to unrealized investment gains (losses) for Level 3 investments | $ (2.2) | $ (7.5) | $ (9.9) | $ 28.9

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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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