Realized (Gain) Loss (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Details underlying realized gain (loss)
Total Realized Gain Loss Related To Certain Investments	$ (14)	[1]	$ (48)	[1]
Realized gain (loss) on the mark-to-market on certain instruments	9	[2]	58	[2]
Indexed annuity and universal life net derivative results
Gross gain (loss)	(8)		22
Associated amortization of DAC, VOBA, DSI, and DFEL	2		(6)
Variable annuity net derivatives results
Gross gain (loss)	(50)		(133)
Associated amortization of DAC, VOBA, DSI, and DFEL	7		22
Total realized gain (loss)	$ (54)		$ (85)

[1] See “Realized Gain (Loss) Related to Certain Investments” section in Note 5.

[2] Represents changes in the fair values of certain derivative investments (including those associated with our consolidated VIEs), total return swaps (embedded derivatives that are theoretically included in our various modified coinsurance and coinsurance with funds withheld reinsurance arrangements that have contractual returns related to various assets and liabilities associated with these arrangements) and trading securities.