Consolidated Balance Sheets - USD ($) $ in Millions		Mar. 31, 2019	Dec. 31, 2018
Available for sale:
Fixed maturity securities (at fair value) (amortized cost: $8,370.5 and $8,285.0)		$ 8,443.2	$ 8,182.8
Short-term investments (at fair value which approximates cost)		351.0	354.9
Total		8,794.3	8,537.8
Held to maturity
Fixed maturity securities (at amortized cost) (fair value: $1,052.1 and $1,034.5)		1,039.0	1,044.8
Equity securities (at fair value) (cost: $3,041.4 and $3,039.1)		3,738.9	3,380.9
Other investments		32.9	31.0
Total investments		13,605.2	12,994.6
Other Assets:
Cash		92.8	100.3
Securities and indebtedness of related parties		25.3	28.4
Accrued investment income		95.8	92.4
Accounts and notes receivable		1,585.0	1,499.4
Federal income tax recoverable: Current		0.0	16.8
Prepaid federal income taxes		129.8	129.8
Reinsurance balances and funds held		170.2	166.2
Reinsurance recoverable: Paid losses		78.7	55.9
Reinsurance recoverable: Policy and claim reserves		3,477.3	3,428.6
Deferred policy acquisition costs		319.5	316.3
Sundry assets		716.6	497.8
Total Other Assets		6,691.6	6,332.4
Total Assets		20,296.9	19,327.1
Liabilities, Preferred Stock, and Common Shareholders' Equity Liabilities:
Losses, claims, and settlement expenses		9,488.4	9,471.2
Unearned premiums		2,178.3	2,104.9
Other policyholders' benefits and funds		198.8	198.6
Total policy liabilities and accruals		11,865.6	11,774.8
Commissions, expenses, fees, and taxes		516.8	525.4
Reinsurance balances and funds		670.6	600.4
Taxes Payable, Current		22.4	0.0
Deferred Income Tax Liabilities, Net		108.8	10.3
Debt		975.1	981.4
Sundry liabilities		471.6	288.3
Commitments and contingent liabilities
Total Liabilities		14,631.3	14,180.8
Preferred Stock	[1]	0.0	0.0
Common Shareholders' Equity:
Common stock	[1]	302.9	302.7
Additional paid-in capital		1,284.1	1,277.6
Retained earnings		4,220.8	3,849.8
Accumulated other comprehensive income (loss)		(70.6)	(210.0)
Unallocated ESSOP shares (at cost)		(71.7)	(73.9)
Total Common Shareholders' Equity		5,665.6	5,146.2
Total Liabilities, Preferred Stock and Common Shareholders' Equity		$ 20,296.9	$ 19,327.1

[1] At March 31, 2019 and December 31, 2018, 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 302,950,409 and 302,714,502 were issued as of March 31, 2019 and December 31, 2018, respectively. At March 31, 2019 and December 31, 2018, there were 100,000,000 shares of Class B Common Stock, $1.00 par value, authorized, of which no shares were issued.