Investments and Derivative Instruments (Details 17) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	$ (80)		$ (432)
Interest rate swaps, swap options , caps, floors and forwards [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	(56)		18
Foreign currency swaps and forwards [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	1		2
3 Win Related Foreign Currency Swaps [Member] | JAPAN [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	15	[1]	(130)	[1]
Fixed Annuity Hedging Instruments [Member] | JAPAN [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	12	[2]	(101)	[2]
Credit Derivatives that Purchase Credit Protection [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	(4)		(9)
Credit Derivatives that Assume Credit Risk [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	(1)		14
Equity index swaps and options [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	0		(20)
GMWB product derivatives [Member] | U.S. [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	36		456
GMWB Reinsurance [Member] | U.S. [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	(4)		(60)
GMWB hedging instruments [Member] | U.S. [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	(17)		(349)
Macro Hedge Program [Member] | U.S. [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	(10)		(85)
International program product derivatives [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	(1)		8
International program hedging instruments [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	(31)		(179)
Contingent Capital Facility Put Option [Member]
Derivative Instruments Gain (Loss) [Line Items]
Gain (loss) on derivative, net	$ (1)		$ (2)

[1] he associated liability is adjusted for changes in foreign exchange spot rates through realized capital gains and was $(28) and $116 for the three months ended March 31, 2014 and 2013, respectively. [

[2] he associated liability is adjusted for changes in foreign exchange spot rates through realized capital gains and was $(30) and $151 for the three months ended March 31, 2014 and 2013, respectively. [