Derivative Financial Instruments (Details - Non-hedge accounting) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011
Derivative Financial Instruments Text Details [Abstract]
Foreign Currency Swaps Cash Flow Hedge Maximum Term	9 years
Accounts Payable Accrued Expenses And Other Liabilities [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Fair Value	$ 1,170		$ 1,333
Accounts Payable Accrued Expenses And Other Liabilities [Member] | Written Options Gmib Liability [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Fair Value	1,170		1,333
Other Assets [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Fair Value	622		712
Other Assets [Member] | Purchased Options Gmib Asset [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Fair Value	622		712
Other Assets [Member] | Interest Rate Futures Growth Interest [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Fair Value	0	[1]	0	[1]
Other Assets [Member] | Interest Rate Swaps And Futures [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Fair Value	35		33
Other Assets [Member] | Interest Rate Swap Growth Interest [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Fair Value	35		33
Guaranteed Minimum Income Benefits Fair Value Gain Loss [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Gain Loss	(41)		234
Guaranteed Minimum Income Benefits Fair Value Gain Loss [Member] | Written Options Gmib Liability [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Gain Loss	(96)		504
Guaranteed Minimum Income Benefits Fair Value Gain Loss [Member] | Purchased Options Gmib Asset [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Gain Loss	55		(270)
Other Revenue [Member] | Guaranteed Minimum Income Benefits Equity And Currency Futures [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Gain Loss	(16)		4
Other Revenue [Member] | Guaranteed Minimum Death Benefits Equity and Currency Futures [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Gain Loss	(110)		(45)
Other Revenue [Member] | Equity and Currency Futures Contract [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Gain Loss	(126)		(41)
Other Revenue [Member] | Interest Rate Futures Growth Interest [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Gain Loss	(1)		(2)
Other Revenue [Member] | Interest Rate Swaps And Futures [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Fair Value	7		37
Other Revenue [Member] | Guaranteed Minimum Income Benefits Growth Interest [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Gain Loss	2		6
Other Revenue [Member] | Guaranteed Minimum Death Benefits Growth Interest [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Gain Loss	5		31
Other Revenue [Member] | Interest Rate Swap Growth Interest [Member] | Non designated [Member]
Derivative [Line Items]
Derivative Gain Loss	8		39
Notional [Member] | Non designated [Member]
Derivative [Line Items]
Notional Amount of Derivatives	1,515		1,861
Notional [Member] | Written Options Gmib Liability [Member] | Non designated [Member]
Derivative [Line Items]
Notional Amount of Derivatives	1,065		1,244
Notional [Member] | Purchased Options Gmib Asset [Member] | Non designated [Member]
Derivative [Line Items]
Notional Amount of Derivatives	586		684
Notional [Member] | Equity and Currency Futures Contract [Member] | Non designated [Member]
Derivative [Line Items]
Notional Amount of Derivatives	777		994
Notional [Member] | Treasury Interest Rate Futures Growth Interest [Member] | Non designated [Member]
Derivative [Line Items]
Notional Amount of Derivatives	16		29
Notional [Member] | Eurodollar Interest Rate Futures Growth Interest [Member] | Non designated [Member]
Derivative [Line Items]
Notional Amount of Derivatives	482		598
Notional [Member] | Interest Rate Swap Growth Interest [Member] | Non designated [Member]
Derivative [Line Items]
Notional Amount of Derivatives	$ 240		$ 240

[1] Balance sheet presentation of amounts receivable or payable relating to futures daily variation margin are excluded from this table.