Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues
Net earned premiums	$ 142	$ 132
Net investment income	101	103
Net realized investment gains (losses):
Other-than-temporary impairment losses	(5)	(3)
Less: portion of other-than-temporary impairment loss recognized in other comprehensive income	2	2
Net impairment loss	(7)	(5)
Other net realized investment gains (losses)	23	7
Net realized investment gains (losses)	16	2
Net change in fair value of credit derivatives:
Realized gains (losses) and other settlements	21	19
Net unrealized gains (losses)	103	(230)
Net change in fair value of credit derivatives	124	(211)
Fair value gains (losses) on committed capital securities	2	(9)
Fair value gains (losses) on financial guaranty variable interest entities	(7)	157
Other income (loss)	(9)	21
Total revenues	369	195
Expenses
Loss and loss adjustment expenses	18	41
Amortization of deferred acquisition costs	4	5
Interest expense	25	20
Other operating expenses	56	60
Total expenses	103	126
Income (loss) before income taxes	266	69
Provision (benefit) for income taxes
Current	13	21
Deferred	52	6
Total provision (benefit) for income taxes	65	27
Net income (loss)	$ 201	$ 42
Earnings per share:
Basic (in dollars per share)	$ 1.29	$ 0.23
Diluted (in dollars per share)	$ 1.28	$ 0.23
Dividends (in dollars per share)	$ 0.12	$ 0.11