Derivatives (Details 1) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	$ (61)	$ (32)
MBS with embedded derivatives [Member] | Realized gains on securities [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	1	(2)
Public company warrants [Member] | Realized gains on securities [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	(2)	0
Fixed-indexed annuities (embedded derivative) [Member] | Annuity benefits [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	(17)	(50)
Equity index call options [Member] | Annuity benefits [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	(40)	20
Reinsurance contracts (embedded derivative) [Member] | Net investment income [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative	$ (3)	$ 0