Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Investments
Fixed maturities, at fair value (amortized cost: 2016—$9,799; 2015—$9,324)	$ 10,085	$ 9,650
Equity securities, at fair value (cost: 2016—$2,995; 2015—$2,938)	5,334	4,706
Other invested assets	81	67
Total investments	15,500	14,423
Cash and cash equivalents	777	544
Investment income receivable	134	129
Finance receivable	51	62
Premiums receivable	1,533	1,431
Reinsurance recoverable	545	542
Prepaid reinsurance premiums	62	54
Deferred policy acquisition costs	637	616
Land, building and equipment, net, for company use (accumulated depreciation: 2016—$237; 2015—$459)	183	185
Other assets	198	154
Separate accounts	766	748
Total assets	20,386	18,888
Insurance reserves
Loss and loss expense reserves	5,085	4,718
Life policy and investment contract reserves	2,671	2,583
Unearned premiums	2,307	2,201
Other liabilities	786	717
Deferred income tax	865	638
Note payable	20	35
Long-term debt and capital lease obligations	826	821
Separate accounts	766	748
Total liabilities	13,326	12,461
Commitments and contingent liabilities (Note 16)	0	0
Shareholders' Equity
Common stock, par value—$2 per share; (authorized: 2016 and 2015—500 million shares; issued: 2016 and 2015—198.3 million shares)	397	397
Paid-in capital	1,252	1,232
Retained earnings	5,037	4,762
Accumulated other comprehensive income	1,693	1,344
Treasury stock at cost (2016—33.9 million shares and 2015—34.4 million shares)	(1,319)	(1,308)
Total shareholders' equity	7,060	6,427
Total liabilities and shareholders' equity	$ 20,386	$ 18,888