Investments (Realized Gain (Loss) Related To Certain Investments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Realized gain (loss) related to certain investments
Gain (loss) on other investments	$ (7)
Associated amortization expense of DAC, VOBA, DSI and DFEL and changes in other contract holder funds	(6)		(7)
Total realized gain (loss) related to certain investments	(27)	[1]	(5)	[1]
Fixed Maturity AFS Securities [Member]
Realized gain (loss) related to certain investments
AFS securities. Gross gains	2	[2]	8	[2]
AFS securities. Gross losses	$ (16)	[2]	$ (6)	[2]

[1] See “Realized Gain (Loss) Related to Certain Investments” section in Note 4.

[2] These amounts are represented net of related fair value hedging activity. See Note 5 for more information.