Reinsurance and Other Monoline Exposures - Effect of Reinsurance on Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016		Mar. 31, 2015
Premiums Written:
Direct	$ 21		$ 29
Assumed	(2)		3
Ceded	(17)		0
Net	2		32
Premiums Earned:
Direct	190		148
Assumed	8		10
Ceded	(15)		(16)
Net	183	[1]	142
Loss and LAE:
Direct	109		26
Assumed	(14)		(7)
Ceded	(5)		(1)
Net	$ 90		$ 18

[1] Excludes $5 million and $5 million for First Quarter 2016 and 2015, respectively, related to consolidated FG VIEs.