Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets
Fixed maturities, available for sale, at fair value (amortized cost $58,878 and $60,801)	$ 60,658	$ 63,474
Equity securities, available for sale, at fair value (cost $528 and $579)	705	899
Real estate investments	989	938
Short-term securities	4,671	4,364
Other investments	3,447	3,586
Total investments	70,470	73,261
Cash	380	374	$ 294	$ 330
Investment income accrued	642	685
Premiums receivable	6,437	6,298
Reinsurance recoverables	8,910	9,260
Ceded unearned premiums	656	678
Deferred acquisition costs	1,849	1,835	1,804
Deferred taxes	296	33
Contractholder receivables	4,374	4,362
Goodwill	3,573	3,611
Other intangible assets	279	304
Other assets	2,318	2,377
Total assets	100,184	103,078
Liabilities
Claims and claim adjustment expense reserves	48,295	49,850	50,895
Unearned premium reserves	11,971	11,839	11,850
Contractholder payables	4,374	4,362
Payables for reinsurance premiums	296	336
Debt	6,344	6,349
Other liabilities	5,306	5,506
Total liabilities	76,586	78,242
Shareholders' equity
Common stock (1,750.0 shares authorized; 295.9 and 322.2 shares issued and outstanding)	22,172	21,843
Retained earnings	29,945	27,251
Accumulated other comprehensive income (loss)	(157)	880
Treasury stock, at cost (467.6 and 437.3 shares)	(28,362)	(25,138)
Total shareholders' equity	23,598	24,836	$ 24,796
Total liabilities and shareholders' equity	$ 100,184	$ 103,078