Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Investments
Fixed maturities, at fair value (amortized cost: 2018—$10,653; 2017—$10,314)	$ 10,660	$ 10,699
Equity securities, at fair value (cost: 2018—$3,294; 2017—$3,094)	6,663	6,249
Other invested assets	110	103
Total investments	17,433	17,051
Cash and cash equivalents	616	657
Investment income receivable	129	134
Finance receivable	69	61
Premiums receivable	1,709	1,589
Reinsurance recoverable	424	432
Prepaid reinsurance premiums	44	42
Deferred policy acquisition costs	743	670
Land, building and equipment, net, for company use (accumulated depreciation: 2018—$259; 2017—$253)	191	185
Other assets	327	216
Separate accounts	795	806
Total assets	22,480	21,843
Insurance reserves
Loss and loss expense reserves	5,578	5,273
Life policy and investment contract reserves	2,770	2,729
Unearned premiums	2,591	2,404
Other liabilities	755	792
Deferred income tax	797	745
Note payable	30	24
Long-term debt and capital lease obligations	830	827
Separate accounts	795	806
Total liabilities	14,146	13,600
Commitments and contingent liabilities (Note 12)
Shareholders' Equity
Common stock, par value—$2 per share; (authorized: 2018 and 2017—500 million shares; issued: 2018 and 2017—198.3 million shares)	397	397
Paid-in capital	1,273	1,265
Retained earnings	8,164	5,180
Accumulated other comprehensive income (loss)	(4)	2,788
Treasury stock at cost (2018—35.6 million shares and 2017—34.4 million shares)	(1,496)	(1,387)
Total shareholders' equity	8,334	8,243
Total liabilities and shareholders' equity	$ 22,480	$ 21,843