Consolidated Statements of Total Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Net premiums earned	$ 14	$ 10
Net investment income:
Securities available-for-sale and short-term	22	31
Net investment income (loss)	49	(21)
Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments	2	8
Realized Investment Gains (Losses)	2	8
Change in fair value of credit derivatives:
Derivative, Gain (Loss) on Derivative, Net	25	(70)
Net realized gains (losses) on extinguishment of debt	33
Other Operating Income (Expense), Net	5	0
Income (loss) on variable interest entities	0	3
Total revenues	129	(70)
Expenses:
Losses and loss expenses (benefit)	8	117
Intangible amortization	19	13
Operating expenses	33	24
Interest expense	50	63
Total expenses	110	217
Pre-tax income (loss)	19	(287)
Provision (benefit) for income taxes	2	(7)
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest	0
Net income (loss)	17	(280)
Net income (loss) attributable to common stockholders	17	(280)
Other comprehensive income (loss), after tax:
Net income (loss)	17	(280)
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax	(24)	(146)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	6	(46)
Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, Unrealized Gain (Loss) Arising During Period, after Tax	(1)	3
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	0	(2)
Total other comprehensive income (loss), net of income tax	(18)	(191)
Total comprehensive income (loss)	(1)	(470)
Less: comprehensive (gain) loss attributable to the noncontrolling interest
Total comprehensive income (loss) attributable to common stockholders	(2)	$ (470)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	$ 0
Earnings Per Share, Basic	$ 0.08	$ (6.07)
Earnings Per Share, Diluted	$ 0.08	$ (6.07)
Weighted Average Number of Shares Outstanding, Basic	46,314,049	46,060,324
Weighted Average Number of Shares Outstanding, Diluted	46,858,064	46,060,324