Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating Activities:
Net Income	$ 44.4	$ 92.4
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Increase in Deferred Policy Acquisition Costs	(1.9)	(5.0)
Amortization of Life Insurance in Force Acquired and Customer Relationships Acquired	3.7	4.2
Equity in Earnings of Equity Method Limited Liability Investments	(4.8)	(12.2)
Distribution of Accumulated Earnings of Equity Method Limited Liability Investments	12.4	8.0
Appreciation on Fair Value Option Investments	(0.3)	0
Amortization of Investment Securities and Depreciation of Investment Real Estate	7.3	8.6
Gain (Loss) on Investments, Excluding Other than Temporary Impairments	(10.1)	(29.2)
Net Impairment Losses Recognized in Earnings	4.9	2.9
Depreciation of Property and Equipment	8.8	8.6
Decrease in Receivables	28.9	9.0
Increase (Decrease) in Insurance Reserves	2.6	(24.3)
Decrease in Unearned Premiums	(27.1)	(10.6)
Change in Income Taxes	(12.4)	0.8
Increase in Accrued Expenses and Other Liabilities	5.5	4.8
Other, Net	10.7	18.6
Net Cash Provided by Operating Activities	72.6	76.6
Investing Activities:
Sales, Paydowns and Maturities of Fixed Maturities	342.8	465.7
Purchases of Fixed Maturities	(225.7)	(572.2)
Sales of Equity Securities	69.9	50.7
Purchases of Equity Securities	(81.0)	(62.8)
Sales of and Return of Investment of Equity Method Limited Liability Investments	26.4	18.9
Acquisitions of Equity Method Limited Liability Investments	(16.0)	(5.3)
Sales of Fair Value Option Investments	2.9	0
Purchases of Fair Value Option Investments	(42.9)	0
Decrease (Increase) in Short-term Investments	(198.0)	87.3
Improvements of Investment Real Estate	(1.3)	(2.7)
Sales of Investment Real Estate	0.9	3.8
Increase in Other Investments	(2.4)	(3.7)
Acquisition of Software	(5.6)	(9.8)
Disposition of Business, Net of Cash Disposed	8.9	3.8
Other, Net	(4.6)	(5.2)
Net Cash Used by Investing Activities	(125.7)	(31.5)
Financing Activities:
Net Proceeds from Issuance of Subordinated Debentures	144.2	0
Common Stock Repurchases	(70.1)	(45.1)
Dividends and Dividend Equivalents Paid	(26.6)	(27.9)
Cash Exercise of Stock Options	0	0.1
Other, Net	0.9	1.0
Net Cash Provided (Used) by Financing Activities	48.4	(71.9)
Decrease in Cash	(4.7)	(26.8)
Cash, Beginning of Year	66.5	96.3
Cash, End of Period	$ 61.8	$ 69.5