Consolidated Statements Of Operations - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Premiums earned:
Net realized investment gains (losses)		$ (3)	$ (1)
Net gains (losses) on financial instruments at fair value and foreign exchange		17	52
Total revenues		40	72
Expenses:
Losses and loss adjustment		49	98
Interest		41	41
Total expenses		113	178
Income (loss) before income taxes		(73)	(106)
Provision (benefit) for income taxes		0	0
Net income (loss)		$ (73)	$ (106)
Net income (loss) per common share:
Basic		$ (1.48)	$ (2.16)
Diluted		$ (1.48)	$ (2.16)
Weighted average number of common shares outstanding:
Basic	[1]	49,631,448	49,258,110
Diluted	[1]	49,631,448	49,258,110
Non Variable Interest Entity [Member]
Premiums earned:
Scheduled premiums earned		$ 11	$ 15
Refunding premiums earned		4	5
Premiums earned (net of ceded premiums of $- and $1)		15	20
Net investment income		18	15
Net realized investment gains (losses)		(3)	(1)
Net gains (losses) on financial instruments at fair value and foreign exchange		17	52
Other net realized gains (losses)		(3)	0
Expenses:
Losses and loss adjustment		49	98
Amortization of deferred acquisition costs		2	2
Operating		19	26
Interest		41	41
Variable Interest Entity Primary Beneficiary [Member]
Premiums earned:
Net gains (losses) on financial instruments at fair value and foreign exchange		(4)	(14)
Expenses:
Operating		2	2
Interest		$ 0	$ 9

[1] Includes 0.9 million of participating securities that met the service condition and were eligible to receive nonforfeitable dividends or dividend equivalents for each of the three months ended March 31, 2022 and 2021, respectively.