CONSOLIDATED STATEMENTS OF INCOME (LOSS) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues
Insurance premiums	$ 606	$ 559	$ 1,825	$ 1,721
Insurance fees	990	864	2,784	2,582
Net investment income	1,146	1,151	3,509	3,522
Realized gain (loss):
Total other-than-temporary impairment losses on securities	(47)	(44)	(194)	(135)
Portion of loss recognized in other comprehensive income	(15)	(18)	(82)	(37)
Net other-than-temporary impairment losses on securities recognized in earnings	(32)	(26)	(112)	(98)
Realized gain (loss), excluding other-than-temporary impairment losses on securities	102	(137)	140	(72)
Total realized gain (loss)	(70)	163	(28)	170
Amortization of deferred gain on business sold through reinsurance	19	19	56	56
Other revenues and fees	123	117	366	362
Expenses
Interest credited	610	625	1,851	1,864
Benefits	811	664	2,615	2,527
Commissions and other expenses	1,047	1,024	2,731	2,467
Interest and debt expense	68	79	203	223
Total expenses	2,536	2,392	7,400	7,081
Income (loss) from continuing operations before taxes	418	155	1,168	992
Federal income tax expense (benefit)	45	(6)	224	214
Income (loss) from continuing operations	373	161	944	778
Income (loss) from discontinued operations, net of federal income taxes	29	(8)	27	(8)
Net income (loss)	402	153	971	770
Other comprehensive income, net of tax	771	1,437	1,471	1,813
Comprehensive income	$ 1,173	$ 1,590	$ 2,442	$ 2,583
Earnings (Loss) Per Common Share - Basic
Income (loss) from continuing operations (in dollars per share)	$ 1.35	$ 0.53	$ 3.33	$ 2.51
Income (loss) from discontinued operations (in dollars per share)	$ 0.10	$ (0.03)	$ 0.10	$ (0.03)
Net income (loss) (in dollars per share)	$ 1.45	$ 0.50	$ 3.43	$ 2.48
Earnings (Loss) Per Common Share - Diluted
Income (loss) from continuing operations (in dollars per share)	$ 1.31	$ 0.50	$ 3.26	$ 2.43
Income (loss) from discontinued operations (in dollars per share)	$ 0.10	$ (0.03)	$ 0.09	$ (0.03)
Net income (loss) (in dollars per share)	$ 1.41	$ 0.47	$ 3.35	$ 2.40