Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues
Insurance premiums	$ 672	$ 606	$ 2,000	$ 1,825
Fee income	1,032	990	2,973	2,778
Net investment income	1,180	1,146	3,543	3,509
Realized gain (loss):
Total other-than-temporary impairment losses on securities	(22)	(47)	(61)	(194)
Net portion of OTTI recognized in OCI, pre-tax	3	15	9	82
Net other-than-temporary impairment losses on securities recognized in earnings	(19)	(32)	(52)	(112)
Realized gain (loss), excluding other-than-temporary impairment losses on securities	(9)	102	(53)	140
Total realized gain (loss)	(28)	70	(105)	28
Amortization of deferred gain on business sold through reinsurance	19	19	56	56
Other revenues	134	123	380	366
Total revenues	3,009	2,954	8,847	8,562
Expenses
Interest credited	627	611	1,871	1,855
Benefits	945	810	2,894	2,605
Commissions and other expenses	928	1,047	2,721	2,731
Interest and debt expense	67	68	196	203
Total expenses	2,567	2,536	7,682	7,394
Income (loss) from continuing operations before taxes	442	418	1,165	1,168
Federal income tax expense (benefit)	105	18	272	203
Income (loss) from continuing operations	337	400	893	965
Income (loss) from discontinued operations, net of federal income taxes		28		27
Net income (loss)	337	428	893	992
Other comprehensive income, net of tax	(143)	771	(2,058)	1,471
Comprehensive income (loss)	$ 194	$ 1,199	$ (1,165)	$ 2,463
Earnings (Loss) Per Common Share - Basic
Income (loss) from continuing operations (in dollars per share)	$ 1.28	$ 1.44	$ 3.35	$ 3.41
Income (loss) from discontinued operations (in dollars per share)		$ 0.10		$ 0.10
Net income (loss) (in dollars per share)	$ 1.28	$ 1.54	$ 3.35	$ 3.51
Earnings (Loss) Per Common Share - Diluted
Income (loss) from continuing operations (in dollars per share)	$ 1.23	$ 1.41	$ 3.24	$ 3.33
Income (loss) from discontinued operations (in dollars per share)		$ 0.10		$ 0.09
Net income (loss) (in dollars per share)	$ 1.23	$ 1.51	$ 3.24	$ 3.42