Deferred Policy Acquisition Costs (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Deferred Policy Acquisition Costs Disclosures [Abstract]
Accumulated amortization of present value of future profits	$ 220	$ 209
Approximate annual rate of decrease in present value of future profits during next five years	0.167