Derivatives (Details Textual) (USD $) In Millions, unless otherwise specified		9 Months Ended		3 Months Ended
	Sep. 30, 2014	Sep. 30, 2014 Not Designated as Hedging Instrument [Member] Interest rate swaptions [Member]	Sep. 30, 2014 Cash Flow Hedges [Member] Designated as Hedging Instrument [Member] Interest rate swaptions [Member]	Sep. 30, 2014 Maximum [Member] Cash Flow Hedges [Member] Designated as Hedging Instrument [Member] Interest rate swaptions [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative asset instrument outstanding		$ 200
Payments to purchase swaptions		4
Indexed annuities as a percentage of annuity benefits	50.00%
Carrying value of collateral received to support purchased call options	252
Notional amount of derivative instrument outstanding			431
Net derivatives, at fair value (are less than)				(1)
Gain (loss) reclassified from AOCI into net investment income (are less than)				$ 1