Condensed Consolidated Statements of Cash Flows (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating Activities:
Net Income	$ 53.6	$ 86.0
Adjustments to Reconcile Net Income to Net Cash Provided (Used) by Operating Activities:
Increase in Deferred Policy Acquisition Costs	(10.9)	(3.8)
Equity in Net Income of Investee before Taxes	0	(0.3)
Equity in Earnings of Equity Method Limited Liability Investments	(20.9)	(22.8)
Amortization of Investment Securities and Depreciation of Investment Real Estate	8.3	9.2
Net Realized Gains on Sales of Investments	(32.4)	(7.4)
Net Impairment Losses Recognized in Earnings	1.7	8.1
Provision for Loan Losses	(28.2)	2.9
Depreciation of Property and Equipment	6.8	6.2
Decrease in Other Receivables	12.3	28.2
Increase (Decrease) in Insurance Reserves	3.5	(34.6)
Decrease in Unearned Premiums	(3.0)	(24.9)
Change in Income Taxes	(2.4)	(14.5)
Increase in Accrued Expenses and Other Liabilities	15.4	5.1
Other, Net	17.4	12.6
Net Cash Provided by Operating Activities	21.2	50.0
Investing Activities:
Sales and Maturities of Fixed Maturities	371.6	260.8
Purchases of Fixed Maturities	(316.8)	(275.6)
Sales of Equity Securities	142.4	7.1
Purchases of Equity Securities	(103.9)	(37.0)
Sales of Former Investee	0	1.3
Acquisition and Improvements of Investment Real Estate	(2.9)	(1.7)
Sales of Investment Real Estate	0.2	0
Return of Investment of Equity Method Limited Liability Investments	35.7	16.2
Acquisitions of Equity Method Limited Liability Investments	(12.1)	(16.6)
Decrease in Short-term Investments	128.5	2.3
Receipts from Automobile Loan Receivables	133.6	189.6
Increase in Other Investments	(5.3)	(4.8)
Other, Net	(13.9)	(23.1)
Net Cash Provided by Investing Activities	357.1	118.5
Financing Activities:
Repayments of Certificates of Deposits	(321.8)	(173.6)
Common Stock Repurchases	(21.7)	(12.2)
Cash Dividends Paid to Shareholders	(29.2)	(27.5)
Cash Exercise of Stock Options	0.1	0.1
Excess Tax Benefits from Share-based Awards	0.1	0.1
Other, Net	0.8	1.7
Net Cash Used by Financing Activities	(371.7)	(211.4)
Increase (Decrease) in Cash	6.6	(42.9)
Cash, Beginning of Year	117.2	143.7
Cash, End of Period	$ 123.8	$ 100.8