Consolidated Balance Sheets (Unaudited) (USD $) In Millions, except Per Share data	Jun. 30, 2011	Dec. 31, 2010
Investments
Fixed maturities, at fair value	$ 15,505	$ 14,709
Equity securities, at fair value	149	127
Commercial mortgage loans	3,315	3,486
Policy loans	1,615	1,581
Real estate	112	112
Other long-term investments	869	759
Short-term investments	204	174
Total investments	21,769	20,948
Cash and cash equivalents	1,774	1,605
Accrued investment income	237	235
Premiums, accounts and notes receivable, net	1,417	1,318
Reinsurance recoverables	6,336	6,495
Deferred policy acquisition costs	1,284	1,122
Property and equipment	953	912
Deferred income taxes, net	493	782
Goodwill	3,136	3,119
Other assets, including other intangibles	1,307	1,238
Separate account assets	8,327	7,908
Total assets	47,033	45,682
Liabilities
Contractholder deposit funds	8,521	8,509
Future policy benefits	8,179	8,147
Unpaid claims and claim expenses	4,098	4,017
Health Care medical claims payable	1,225	1,246
Unearned premiums and fees	442	416
Total insurance and contractholder liabilities	22,465	22,335
Accounts payable, accrued expenses and other liabilities	5,480	5,936
Short-term debt	330	552
Long-term debt	2,883	2,288
Separate account liabilities	8,327	7,908
Total liabilities	39,485	39,019
Shareholders' Equity
Common stock (par value per share, $0.25; shares issued, 351)	88	88
Additional paid-in capital	2,556	2,534
Net unrealized appreciation, fixed maturities	610	529
Net unrealized appreciation, equity securities	3	3
Net unrealized depreciation, derivatives	(34)	(24)
Net translation of foreign currencies	123	25
Postretirement benefits liability adjustment	(1,138)	(1,147)
Accumulated other comprehensive loss	(436)	(614)
Retained earnings	10,658	9,879
Less treasury stock, at cost	(5,318)	(5,242)
Total shareholders' equity	7,548	6,645
Noncontrolling interest	0	18
Total equity	7,548	6,663
Total liabilities and equity	$ 47,033	$ 45,682
Shareholders' Equity Per Share	$ 27.93	$ 24.44