Consolidated Balance Sheet (Unaudited at March 31, 2014) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Assets
Fixed maturities, available for sale, at fair value (amortized cost $61,995 and $62,196)	$ 64,271	$ 63,956
Equity securities, available for sale, at fair value (cost $660 and $686)	938	943
Real estate investments	936	938
Short-term securities	4,034	3,882
Other investments	3,539	3,441
Total investments	73,718	73,160
Cash	260	294	243	330
Investment income accrued	686	734
Premiums receivable	6,302	6,125
Reinsurance recoverables	9,590	9,713
Ceded unearned premiums	851	801
Deferred acquisition costs	1,836	1,804
Deferred taxes		303
Contractholder receivables	4,361	4,328
Goodwill	3,624	3,634
Other intangible assets	339	351
Other assets	2,567	2,565
Total assets	104,134	103,812
Liabilities
Claims and claim adjustment expense reserves	50,588	50,895
Unearned premium reserves	11,917	11,850
Contractholder payables	4,361	4,328
Payables for reinsurance premiums	370	298
Deferred taxes	54
Debt	6,347	6,346
Other liabilities	5,110	5,299
Total liabilities	78,747	79,016
Shareholders' equity
Common stock (1,750.0 shares authorized; 347.5 and 353.5 shares issued and outstanding)	21,603	21,500	21,300	21,161
Retained earnings	25,167	24,291	22,072	21,352
Accumulated other comprehensive income	1,127	810	1,926	2,236
Treasury stock, at cost (410.0 and 401.5 shares)	(22,510)	(21,805)	(19,702)	(19,344)
Total shareholders' equity	25,387	24,796	25,596
Total liabilities and shareholders' equity	$ 104,134	$ 103,812