Condensed Financial Information (Parent Company) (Condensed Statements of Operations) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Income Statements, Captions [Line Items]
Net investment income									$ 22,232	$ 21,984	$ 19,585
Other revenues									1,920	1,906	2,532
Net investment gains (losses)									161	(352)	(867)
Net derivative gains (losses)									(3,239)	(1,919)	4,824
Total revenues	18,458	16,337	15,721	17,683	17,333	16,503	18,398	15,916	68,199	68,150	70,241
Expenses
Goodwill impairment									0	1,868	0
Other expenses									16,602	17,755	18,537
Total expenses	17,190	15,361	15,160	16,436	17,810	17,513	15,060	16,325	64,147	66,708	61,057
Income (loss) before provision for income tax									4,052	1,442	9,184
Provision for income tax expense (benefit)									661	128	2,793
Net income (loss)	908	972	502	986	127	(954)	2,295	(144)	3,368	1,324	6,423
Less: Preferred stock dividends	31	30	31	30	31	30	31	30	122	122	122
Preferred stock redemption premium									0	0	146
Net income (loss) available to common shareholders	877	942	471	956	96	(984)	2,264	(174)	3,246	1,202	6,155
Comprehensive income (loss)									(2,925)	6,638	11,361
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Equity in earnings of subsidiaries									4,163	3,444	6,979
Net investment income									304	94	121
Other revenues									155	159	155
Net investment gains (losses)									(80)	29	(146)
Net derivative gains (losses)									(99)	(259)	82
Total revenues									4,443	3,467	7,191
Expenses
Interest expense									1,122	985	1,007
Goodwill impairment									0	1,384	0
Other expenses									373	167	149
Total expenses									1,495	2,536	1,156
Income (loss) before provision for income tax									2,948	931	6,035
Provision for income tax expense (benefit)									(420)	(393)	(388)
Net income (loss)									3,368	1,324	6,423
Less: Preferred stock dividends									122	122	122
Preferred stock redemption premium									0	0	146
Net income (loss) available to common shareholders									3,246	1,202	6,155
Comprehensive income (loss)									$ (2,925)	$ 6,638	$ 11,361