Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income (loss)	$ 447.8	$ (68.6)	$ (140.5)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Deferred policy acquisition costs	(27.9)	32.5	32.7
Premiums and other receivables	(55.9)	(105.6)	(16.1)
Unpaid claims and related items	141.2	578.2	9.3
Unearned premiums and other policyholders' liabilities	102.9	52.7	23.1
Income taxes	103.7	(60.7)	(88.5)
Prepaid federal income taxes	0	1.0	101.9
Reinsurance balances and funds	55.5	51.7	(12.4)
Realized investment (gains) losses	(148.1)	(47.8)	(115.5)
Accounts payable, accrued expenses and other	67.3	98.6	111.2
Total	686.7	532.0	(94.9)
Fixed maturity securities:
Maturities and early calls	1,387.4	1,080.3	926.8
Sales	194.8	406.1	1,769.5
Sales of:
Equity securities	172.5	71.1	86.6
Other - net	29.3	28.3	31.2
Sale of a business	0	5.8	0
Purchases of:
Fixed maturity securities	(2,120.8)	(1,598.3)	(2,409.6)
Equity securities	(209.5)	(169.8)	(65.0)
Other - net	(44.6)	(37.8)	(50.8)
Purchase of a business	(5.1)	0	0
Net decrease (increase) in short-term investments	139.1	211.5	(476.0)
Other - net	(0.4)	(1.0)	0
Total	(457.6)	(3.7)	(187.1)
Cash flows from financing activities:
Issuance of debentures and notes	0	0	537.0
Issuance of common shares	11.8	1.0	1.2
Redemption of debentures and notes	(3.6)	(339.8)	(112.1)
Dividends on common shares	(184.8)	(181.5)	(178.4)
Other - net	(0.3)	0.2	0.1
Total	(176.9)	(520.0)	247.8
Increase (decrease) in cash:	52.0	8.1	(34.2)
Cash, beginning of year	101.2	93.0	127.3
Cash, end of year	153.3	101.2	93.0
Supplemental cash flow information:
Cash paid (received) during the period for: Interest	21.3	35.0	42.0
Cash paid (received) during the period for: Income taxes	$ 122.3	$ 1.6	$ (6.9)