Derivatives (Details 1) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	$ (45)	$ 24	$ (106)	$ (8)
MBS with embedded derivatives [Member] | Realized gains on securities [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	3	(1)	4	(3)
Public company warrants [Member] | Realized gains on securities [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	1	0	(1)	0
Fixed-indexed annuities (embedded derivative) [Member] | Annuity benefits [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	(62)	19	(79)	(31)
Equity index call options [Member] | Annuity benefits [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	16	3	(24)	23
Reinsurance contracts (embedded derivative) [Member] | Net investment income [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	$ (3)	$ 3	$ (6)	$ 3