Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Investments
Fixed maturities, at fair value (amortized cost: 2017—$9,981; 2016—$9,799)	$ 10,301	$ 10,085
Equity securities, at fair value (cost: 2017—$3,240; 2016—$2,995)	5,676	5,334
Other invested assets	90	81
Total investments	16,067	15,500
Cash and cash equivalents	543	777
Investment income receivable	123	134
Finance receivable	50	51
Premiums receivable	1,588	1,533
Reinsurance recoverable	544	545
Prepaid reinsurance premiums	52	62
Deferred policy acquisition costs	660	637
Land, building and equipment, net, for company use (accumulated depreciation: 2017—$242; 2016—$237)	181	183
Other assets	170	198
Separate accounts	775	766
Total assets	20,753	20,386
Insurance reserves
Loss and loss expense reserves	5,177	5,085
Life policy and investment contract reserves	2,689	2,671
Unearned premiums	2,377	2,307
Other liabilities	691	786
Deferred income tax	946	865
Note payable	17	20
Long-term debt and capital lease obligations	825	826
Separate accounts	775	766
Total liabilities	13,497	13,326
Commitments and contingent liabilities (Note 12)
Shareholders' Equity
Common stock, par value—$2 per share; (authorized: 2017 and 2016—500 million shares; issued: 2017 and 2016—198.3 million shares)	397	397
Paid-in capital	1,243	1,252
Retained earnings	5,156	5,037
Accumulated other comprehensive income	1,780	1,693
Treasury stock at cost (2017—33.7 million shares and 2016—33.9 million shares)	(1,320)	(1,319)
Total shareholders' equity	7,256	7,060
Total liabilities and shareholders' equity	$ 20,753	$ 20,386