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Business Segments - Segment Operating Profit (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  | $ 84.5 | $ 136.3 | $ 229.2
Net Realized Gains on Sales of Investments | $ 9.4 | $ 5.3 | $ 34.0 | $ 3.4 | $ 21.0 | $ 8.0 | $ 3.5 | $ 6.6 | 52.1 | 39.1 | 99.1
Net Impairment Losses Recognized in Earnings | (14.7) | (3.3) | (2.2) | (7.0) | (6.5) | (3.8) | (4.1) | (0.8) | (27.2) | (15.2) | (13.9)
Loss from Early Extinguishment of Debt | 0.0 | 0.0 | 0.0 | 9.1 |  |  |  |  | 9.1 | 0.0 | 0.0
Income from Continuing Operations before Income Taxes | $ (1.6) | $ 49.8 | $ 34.3 | $ 17.8 | $ 93.1 | $ 4.0 | $ 11.2 | $ 51.9 | 100.3 | 160.2 | 314.4
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  | 133.4 | 169.0 | 276.5
Operating Segments [Member] | Property and Casualty Insurance [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  | 23.7 | 27.1 | 139.6
Operating Segments [Member] | Life and Health Insurance [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  | 109.7 | 141.9 | 136.9
Corporate, Non-Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  | (48.9) | (32.7) | (47.3)
Segment Reconciling Items [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net Realized Gains on Sales of Investments |  |  |  |  |  |  |  |  | 52.1 | 39.1 | 99.1
Net Impairment Losses Recognized in Earnings |  |  |  |  |  |  |  |  | (27.2) | (15.2) | (13.9)
Loss from Early Extinguishment of Debt |  |  |  |  |  |  |  |  | $ (9.1) | $ 0.0 | $ 0.0

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- Definition This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (b)(7) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20187-122688 + Details
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