Derivative Financial Instruments (Details - Non-hedge accounting) (USD $) In Millions	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Mar. 31, 2009	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Derivative Financial Instruments Text Details [Abstract]
Net Position Of Instruments With Termination Provisions				33		25
Gain in Other Comprehensive Income for Treasury lock designated as accounting hedges			$ 14
Net cumulative loss for treasury lock before taxes			36
Derivative reclassification adjustment	not material	not material		not material	not material
Net cumulative loss for treasury lock after taxes			23
Remaining unamortized treasury lock				18		19
Non designated [Member] | Accounts Payable Accrued Expenses And Other Liabilities [Member] | Written Options Gmib Liability [Member]
Derivative [Line Items]
Derivative Fair Value	917			917		903
Non designated [Member] | Other Assets [Member] | Purchased Options Gmib Asset [Member]
Derivative [Line Items]
Derivative Fair Value	490			490		480
Non designated [Member] | Other Assets [Member] | Interest Rate Swap Growth Interest [Member]
Derivative [Line Items]
Derivative Fair Value	9			9
Non designated [Member] | Guaranteed Minimum Income Benefits Fair Value Gain Loss [Member] | Written Options Gmib Liability [Member]
Derivative [Line Items]
Derivative Gain Loss	85	351		48	347
Non designated [Member] | Guaranteed Minimum Income Benefits Fair Value Gain Loss [Member] | Purchased Options Gmib Asset [Member]
Derivative [Line Items]
Derivative Gain Loss	(48)	(187)		(27)	(187)
Non designated [Member] | Other Revenue [Member] | Guaranteed Minimum Income Benefits Equity Futures [Member]
Derivative [Line Items]
Derivative Gain Loss	0			0
Non designated [Member] | Other Revenue [Member] | Guaranteed Minimum Death Benefits Equity Futures [Member]
Derivative [Line Items]
Derivative Gain Loss	(5)	92		(49)	47
Non designated [Member] | Other Revenue [Member] | Equity Futures Contract [Member]
Derivative [Line Items]
Derivative Gain Loss	(5)	92		(49)	47
Non designated [Member] | Other Revenue [Member] | Interest Rate Futures Growth Interest [Member]
Derivative [Line Items]
Derivative Gain Loss	(1)			0
Non designated [Member] | Other Revenue [Member] | Guaranteed Minimum Income Benefits [Member]
Derivative [Line Items]
Derivative Gain Loss	1			2
Non designated [Member] | Other Revenue [Member] | Guaranteed Minimum Death Benefits [Member]
Derivative [Line Items]
Derivative Gain Loss	6			10
Non designated [Member] | Other Revenue [Member] | Interest Rate Swap Growth Interest [Member]
Derivative [Line Items]
Derivative Gain Loss	8			12
Non designated [Member] | Interest Rate Swap [Member] | Other Long Term Investments [Member]
Derivative [Line Items]
Derivative Fair Value	3			3		3
Non designated [Member] | Interest Rate Swap [Member] | Realized Gain Loss On Sale Of Investments [Member]
Derivative [Line Items]
Derivative Gain Loss	0	2		0	2
Non designated [Member] | Interest Rate Swap [Member] | Notional [Member]
Derivative [Line Items]
Notional Amount Of Derivatives	45			45		45
Non designated [Member] | Notional [Member] | Written Options Gmib Liability [Member]
Derivative [Line Items]
Notional Amount Of Derivatives	1,089			1,089		1,134
Non designated [Member] | Notional [Member] | Purchased Options Gmib Asset [Member]
Derivative [Line Items]
Notional Amount Of Derivatives	599			599		624
Non designated [Member] | Notional [Member] | Equity Futures Contract [Member]
Derivative [Line Items]
Notional Amount Of Derivatives	862			862		878
Non designated [Member] | Notional [Member] | Treasury Interest Rate Futures Growth Interest [Member]
Derivative [Line Items]
Notional Amount Of Derivatives	9			9
Non designated [Member] | Notional [Member] | Eurodollar Interest Rate Futures Growth Interest [Member]
Derivative [Line Items]
Notional Amount Of Derivatives	548			548
Non designated [Member] | Notional [Member] | Interest Rate Swap Growth Interest [Member]
Derivative [Line Items]
Notional Amount Of Derivatives	$ 240			$ 240