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.

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-Name Regulation S-X (SX)

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-Name Accounting Standards Codification

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-SubTopic 10

-Section S99

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Publisher SEC

-Name Regulation S-X (SX)

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Business Segments - Segment Operating Profit (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Operating Income (Loss)									$ 136.3us-gaap_OperatingIncomeLoss	$ 229.2us-gaap_OperatingIncomeLoss	$ 63.9us-gaap_OperatingIncomeLoss
Net Realized Gains on Sales of Investments	21.0	8.0	3.5	6.6	20.8	49.1	2.3	26.9	39.1	99.1	65.4
Net Impairment Losses Recognized in Earnings	(6.5)	(3.8)	(4.1)	(0.8)	(7.6)	(3.4)	(1.0)	(1.9)	(15.2)	(13.9)	(6.9)
Income from Continuing Operations before Income Taxes	93.1	4.0	11.2	51.9	81.4	102.0	46.4	84.6	160.2	314.4	122.4
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									169.0	276.5	104.8
Operating Segments [Member] \| Property and Casualty Insurance [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									27.1	139.6	(35.6)
Operating Segments [Member] \| Life and Health Insurance [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									141.9	136.9	140.4
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									(32.7)	(47.3)	(40.9)
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Net Realized Gains on Sales of Investments									39.1	99.1	65.4
Net Impairment Losses Recognized in Earnings									$ (15.2)	$ (13.9)	$ (6.9)