Consolidated Balance Sheets - USD ($) $ in Millions		Sep. 30, 2016	Dec. 31, 2015
Available for sale:
Fixed maturity securities (at fair value) (amortized cost: $8,014.1 and $8,149.4)		$ 8,354.7	$ 8,181.5
Equity securities (at fair value) (cost: $2,396.6 and $1,826.4)		2,787.4	1,987.8
Short-term investments (at fair value which approximates cost)		707.0	669.4
Miscellaneous investments		30.8	27.2
Total		11,880.1	10,866.1
Held to maturity
Fixed maturity securities (at amortized cost) (fair value: $766.7 and $359.7)		748.5	355.8
Other investments		3.0	3.5
Total investments		12,631.7	11,225.5
Other Assets:
Cash		144.6	159.8
Securities and indebtedness of related parties		20.6	27.7
Accrued investment income		94.1	90.1
Accounts and notes receivable		1,508.6	1,310.2
Federal income tax recoverable: Current		27.2	26.5
Federal income tax recoverable: Deferred		0.0	154.5
Prepaid federal income taxes		82.4	63.3
Reinsurance balances and funds held		129.3	129.0
Reinsurance recoverable: Paid losses		93.8	61.1
Reinsurance recoverable: Policy and claim reserves		3,329.7	3,122.5
Deferred policy acquisition costs		277.0	255.4
Sundry assets		471.0	475.6
Total Other Assets		6,178.8	5,876.1
Total Assets		18,810.6	17,101.6
Liabilities, Preferred Stock, and Common Shareholders' Equity Liabilities:
Losses, claims, and settlement expenses		9,247.0	9,120.1
Unearned premiums		1,969.8	1,748.7
Other policyholders' benefits and funds		192.1	196.4
Total policy liabilities and accruals		11,409.0	11,065.3
Commissions, expenses, fees, and taxes		454.5	452.3
Reinsurance balances and funds		641.4	496.1
Deferred Income Tax Liabilities, Net		52.3	0.0
Debt		1,528.0	952.8
Sundry liabilities		279.0	253.9
Commitments and contingent liabilities
Total Liabilities		14,364.4	13,220.7
Preferred Stock	[1]	0.0	0.0
Common Shareholders' Equity:
Common stock	[1]	262.6	261.9
Additional paid-in capital		710.4	698.0
Retained earnings		3,127.2	2,937.5
Accumulated other comprehensive income		386.8	29.2
Unallocated ESSOP shares (at cost)		(40.9)	(45.8)
Total Common Shareholders' Equity		4,446.1	3,880.8
Total Liabilities, Preferred Stock and Common Shareholders' Equity		$ 18,810.6	$ 17,101.6

[1] At September 30, 2016 and December 31, 2015, 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 262,600,130 and 261,968,328 were issued as of September 30, 2016 and December 31, 2015, respectively. At September 30, 2016 and December 31, 2015, there were 100,000,000 shares of Class B Common Stock, $1.00 par value, authorized, of which no shares were issued.