CONSOLIDATED STATEMENTS OF INCOME (LOSS) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues:
Insurance premiums	$ 630	$ 594	$ 1,219	$ 1,162
Insurance fees	887	900	1,794	1,718
Net investment income	1,197	1,181	2,362	2,372
Realized gain (loss):
Total other-than-temporary impairment losses on securities	(50)	(47)	(147)	(91)
Portion of loss recognized in other comprehensive income	17	16	67	19
Net other-than-temporary impairment losses on securities recognized in earnings	(33)	(31)	(80)	(72)
Realized gain (loss), excluding other-than-temporary impairment losses on securities	76	22	37	65
Total realized gain (loss)	(43)	9	43	7
Amortization of deferred gain on business sold through reinsurance	18	19	38	37
Other revenues and fees	124	122	244	244
Total revenues	2,899	2,807	5,614	5,526
Expenses
Interest credited	616	625	1,241	1,239
Benefits	945	1,027	1,804	1,862
Commissions and other expenses	828	674	1,684	1,443
Interest and debt expense	68	72	135	144
Total expenses	2,457	2,398	4,864	4,688
Income (loss) from continuing operations before taxes	442	409	750	838
Federal income tax expense (benefit)	118	105	180	221
Income (loss) from continuing operations	324	304	570	617
Income (loss) from discontinued operations, net of federal income taxes	0	0	(1)	0
Net income (loss)	324	304	569	617
Other comprehensive income, net of tax	757	354	700	376
Comprehensive income	$ 1,081	$ 658	$ 1,269	$ 993
Earnings (Loss) Per Common Share - Basic
Income (loss) from continuing operations (in dollars per share)	$ 1.15	$ 0.98	$ 1.99	$ 1.97
Income (loss) from discontinued operations (in dollars per share)	$ 0	$ 0	$ 0	$ 0
Net income (loss) (in dollars per share)	$ 1.15	$ 0.98	$ 1.99	$ 1.97
Earnings (Loss) Per Common Share - Diluted
Income (loss) from continuing operations (in dollars per share)	$ 1.10	$ 0.95	$ 1.94	$ 1.92
Income (loss) from discontinued operations (in dollars per share)	$ 0	$ 0	$ 0	$ 0
Net income (loss) (in dollars per share)	$ 1.10	$ 0.95	$ 1.94	$ 1.92