Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net income (loss)	$ 194.4	$ 56.2
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Deferred policy acquisition costs	(12.2)	(2.5)
Premiums and other receivables	(97.7)	(49.1)
Unpaid claims and related items	45.9	44.8
Unearned premiums and other policyholders' liabilities	56.7	39.4
Income taxes	101.9	46.4
Prepaid federal income taxes	20.1	0
Reinsurance balances and funds	71.5	28.2
Realized investment (gains) losses	(191.2)	(4.5)
Accounts payable, accrued expenses and other	(13.7)	(15.7)
Total	135.4	143.2
Fixed maturity securities:
Maturities and early calls	201.8	279.1
Sales	498.2	15.8
Sales of:
Equity securities	179.7	0
Other - net	4.3	19.4
Purchases of:
Fixed maturity securities	(482.0)	(441.7)
Equity securities	(334.3)	0
Other - net	(9.5)	(9.2)
Net decrease (increase) in short-term investments	(166.8)	64.9
Other - net	0	(0.4)
Total	(108.5)	(72.1)
Cash flows from financing activities:
Issuance of common shares	1.0	0.5
Redemption of debentures and notes	(3.0)	(2.8)
Dividends on common shares	(46.9)	(46.0)
Other - net	(1.0)	(1.3)
Total	(50.0)	(49.7)
Increase (decrease) in cash	(23.1)	21.3
Cash, beginning of period	153.3	101.2
Cash, end of period	130.2	122.6
Supplemental cash flow information:
Cash paid (received) during the period for: Interest	10.4	10.4
Cash paid (received) during the period for: Income taxes	$ 0.6	$ (17.7)