CONSOLIDATED STATEMENTS OF INCOME (LOSS) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Revenues:
Insurance premiums	$ 2,294	$ 2,176	$ 2,064
Insurance fees	3,437	3,234	2,922
Net investment income	4,652	4,541	4,178
Realized gain (loss):
Total other-than-temporary impairment losses on securities	(165)	(240)	(667)
Portion of loss recognized in other comprehensive income	47	88	275
Net other-than-temporary impairment losses on securities recognized in earnings	(118)	(152)	(392)
Realized gain (loss), excluding other-than-temporary impairment losses on securities	(181)	75	(754)
Total realized gain (loss)	(299)	(77)	(1,146)
Amortization of deferred gain on business sold through reinsurance	75	75	76
Other revenues and fees	477	458	405
Total revenues	10,636	10,407	8,499
Benefits and Expenses
Interest credited	2,488	2,488	2,465
Benefits	3,345	3,327	2,834
Underwriting, acquisition, insurance and other expenses	3,163	3,067	2,794
Interest and debt expense	294	291	197
Impairment of intangibles	747	0	730
Total expenses	10,037	9,173	9,020
Income (loss) before federal income taxes, equity in income (loss) of subsidiaries, less dividends	599	1,234	(521)
Federal income tax expense (benefit)	297	283	(106)
Income (loss) from continuing operations	302	951	(415)
Income (loss) from discontinued operations, net of federal income taxes	(8)	29	(70)
Net income (loss)	294	980	(485)
Preferred stock dividends and accretion of discount	0	(167)	(35)
Net income (loss) available to common stockholders	$ 294	$ 813	$ (520)
Earnings (Loss) Per Common Share - Basic
Income (loss) from continuing operations (in dollars per share)	$ 0.99	$ 2.53	$ (1.60)
Income (loss) from discontinued operations (in dollars per share)	$ (0.03)	$ 0.09	$ (0.25)
Net income (loss) (in dollars per share)	$ 0.96	$ 2.62	$ (1.85)
Earnings (Loss) Per Common Share - Diluted
Income (loss) from continuing operations (in dollars per share)	$ 0.95	$ 2.45	$ (1.60)
Income (loss) from discontinued operations (in dollars per share)	$ (0.03)	$ 0.09	$ (0.25)
Net income (loss) (in dollars per share)	$ 0.92	$ 2.54	$ (1.85)