Investments (Realized Gain (Loss) Related To Certain Investments) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Realized gain (loss) related to certain investments
Gain (loss) on other investments			$ 3	$ (8)	$ 3
Associated amortization expense of DAC, VOBA, DSI and DFEL and changes in other contract holder funds		$ (10)	(10)	(15)	(17)
Total realized gain (loss) related to certain investments	[1]	(1)	1	(28)	(5)
Equity AFS Securities [Member]
Realized gain (loss) related to certain investments
AFS securities. Gross gains		1	3	1	3
Fixed Maturity AFS Securities [Member]
Realized gain (loss) related to certain investments
AFS securities. Gross gains	[2]	21	11	23	19
AFS securities. Gross losses	[2]	$ (13)	$ (6)	$ (29)	$ (13)

[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.