Consolidated Balance Sheet (Unaudited at September 30, 2013) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Assets
Fixed maturities, available for sale, at fair value (amortized cost $59,960 and $60,829)	$ 62,102	$ 65,393
Equity securities, available for sale, at fair value (cost $470 and $462)	708	645
Real estate investments	917	883
Short-term securities	5,379	3,483
Other investments	3,425	3,434
Total investments	72,531	73,838
Cash	295	330	220	214
Investment income accrued	673	752
Premiums receivable	6,113	5,872
Reinsurance recoverables	9,544	10,712
Ceded unearned premiums	1,015	856
Deferred acquisition costs	1,802	1,792
Deferred taxes	321
Contractholder receivables	4,450	4,806
Goodwill	3,365	3,365
Other intangible assets	347	381
Other assets	2,229	2,234
Total assets	102,685	104,938
Liabilities
Claims and claim adjustment expense reserves	49,153	50,922
Unearned premium reserves	11,716	11,241
Contractholder payables	4,450	4,806
Payables for reinsurance premiums	438	346
Deferred taxes		338
Debt	6,346	6,350
Other liabilities	5,771	5,530
Total liabilities	77,874	79,533
Shareholders' equity
Common stock (1,750.0 shares authorized; 364.1 and 377.4 shares issued and outstanding)	21,425	21,161	21,085	20,732
Retained earnings	23,485	21,352	21,226	19,579
Accumulated other comprehensive income	705	2,236	2,536	2,005
Treasury stock, at cost (390.1 and 372.3 shares)	(20,804)	(19,344)	(18,942)	(17,839)
Total shareholders' equity	24,811	25,405	25,905
Total liabilities and shareholders' equity	$ 102,685	$ 104,938