Consolidated Balance Sheets - USD ($) $ in Millions		Mar. 31, 2017	Dec. 31, 2016
Available for sale:
Fixed maturity securities (at fair value) (amortized cost: $7,967.4 and $8,019.6)		$ 8,135.8	$ 8,170.9
Equity securities (at fair value) (cost: $2,472.9 and $2,404.9)		3,012.2	2,896.1
Short-term investments (at fair value which approximates cost)		654.1	681.6
Miscellaneous investments		32.2	31.2
Total		11,834.4	11,780.0
Held to maturity
Fixed maturity securities (at amortized cost) (fair value: $1,040.5 and $947.4)		1,056.9	974.8
Other investments		2.9	2.9
Total investments		12,894.4	12,757.7
Other Assets:
Cash		177.2	145.7
Securities and indebtedness of related parties		22.7	17.6
Accrued investment income		95.9	92.3
Accounts and notes receivable		1,461.2	1,390.2
Federal income tax recoverable: Current		0.0	14.9
Prepaid federal income taxes		114.3	82.4
Reinsurance balances and funds held		123.6	127.7
Reinsurance recoverable: Paid losses		66.1	63.4
Reinsurance recoverable: Policy and claim reserves		3,214.5	3,168.1
Deferred policy acquisition costs		281.8	274.0
Sundry assets		453.4	457.1
Total Other Assets		6,011.0	5,833.8
Total Assets		18,905.4	18,591.6
Liabilities, Preferred Stock, and Common Shareholders' Equity Liabilities:
Losses, claims, and settlement expenses		9,231.3	9,206.0
Unearned premiums		1,937.1	1,842.9
Other policyholders' benefits and funds		193.9	192.0
Total policy liabilities and accruals		11,362.4	11,241.0
Commissions, expenses, fees, and taxes		470.2	474.4
Reinsurance balances and funds		571.3	530.3
Taxes Payable, Current		42.1	0.0
Deferred Income Tax Liabilities, Net		64.8	42.6
Debt		1,525.5	1,528.7
Sundry liabilities		272.1	302.6
Commitments and contingent liabilities
Total Liabilities		14,308.8	14,119.9
Preferred Stock	[1]	0.0	0.0
Common Shareholders' Equity:
Common stock	[1]	263.5	262.7
Additional paid-in capital		728.4	713.8
Retained earnings		3,274.3	3,210.6
Accumulated other comprehensive income		367.8	323.6
Unallocated ESSOP shares (at cost)		(37.5)	(39.2)
Total Common Shareholders' Equity		4,596.6	4,471.6
Total Liabilities, Preferred Stock and Common Shareholders' Equity		$ 18,905.4	$ 18,591.6

[1] At March 31, 2017 and December 31, 2016, there were 75,000,000 shares of $0.01 par value preferred stock authorized, of which no shares were outstanding. As of the same dates, there were 500,000,000 shares of common stock, $1.00 par value, authorized, of which 263,586,666 and 262,719,660 were issued as of March 31, 2017 and December 31, 2016, respectively. At March 31, 2017 and December 31, 2016, there were 100,000,000 shares of Class B Common Stock, $1.00 par value, authorized, of which no shares were issued.