Separate Accounts, Death Benefits and Other Insurance Benefit Features (Details 1) (USD $) In Millions, unless otherwise specified				9 Months Ended
	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2011 Maximum Anniversary Value [Member]	Sep. 30, 2011 MAV Only [Member] Age Year	Sep. 30, 2011 With Five Percent Rollup [Member] Age	Sep. 30, 2011 With Earnings Protection Benefit Rider (EPB) [Member] Age	Sep. 30, 2011 With Five Percent Rollup and EPB [Member] Age	Sep. 30, 2011 Asset Protection Benefit ("APB") [Member] Age	Sep. 30, 2011 Lifetime Income Benefit ("LIB") - Death Benefit [Member] Age	Sep. 30, 2011 Reset [Member] Age Year	Sep. 30, 2011 Return of Premium ("ROP")/Other [Member] Age	Sep. 30, 2011 U.S. [Member] Guaranteed Minimum Death Benefit [Member] Age	Sep. 30, 2011 JAPAN Guaranteed Minimum Death Benefit [Member] Age	Sep. 30, 2011 JAPAN Guaranteed Minimum Income Benefit [Member] Age
Individual Variable and Group Annuity Account Value by GMDB/GMIB Type
Account Value ("AV")			$ 27,317	$ 20,113	$ 1,407	$ 5,225	$ 572	$ 21,875	$ 1,052	$ 3,030	$ 20,557	$ 73,831	$ 29,522	$ 27,471
Net Amount at Risk ("NAR")	9,446			7,357	612	1,271	206	4,495	187	446	1,360	15,934	11,035	7,662
Retained Net Amount at Risk ("RNAR")	2,408			2,009	226	131	42	2,939	187	442	1,330	7,306	9,583	7,662
Weighted Average Attained Age of Annuitant				68	68	65	68	66	64	68	65	66	69	69
Less: General Account Value Subject to U.S. GMDB	7,172
Subtotal Separate Account Liabilities with U.S. GMDB	66,659
Separate Account Liabilities without U.S. GMDB	77,264
Total Separate Account Liabilities	$ 143,923	$ 159,742