REVISION OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS - Income Statement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
REVENUES
Net investment income (loss)	$ 87	$ 88	$ 86
Total revenues	627	533	446
BENEFITS AND OTHER DEDUCTIONS
Compensation and benefits	42	36	35
Other operating costs and expenses	103	102	87
Total benefits and other deductions	673	560	485
Income (loss) from continuing operations, before income taxes	(46)	(27)	(39)
Income tax (expense) benefit from continuing operations	8	7	29
Net income (loss) from continuing operations		(20)	(10)
Net income (loss)	$ (38)	(20)	(10)
As Previously Reported
REVENUES
Net investment income (loss)		90	83
Total revenues		535	443
BENEFITS AND OTHER DEDUCTIONS
Compensation and benefits		35	35
Other operating costs and expenses		96	83
Total benefits and other deductions		553	481
Income (loss) from continuing operations, before income taxes		(18)	(38)
Income tax (expense) benefit from continuing operations		5	29
Net income (loss) from continuing operations		(13)	(9)
Net income (loss)		(13)	(9)
Impact of Revisions
REVENUES
Net investment income (loss)		(2)	3
Total revenues		(2)	3
BENEFITS AND OTHER DEDUCTIONS
Compensation and benefits		1	0
Other operating costs and expenses		6	4
Total benefits and other deductions		7	4
Income (loss) from continuing operations, before income taxes		(9)	(1)
Income tax (expense) benefit from continuing operations		2	0
Net income (loss) from continuing operations		(7)	(1)
Net income (loss)		$ (7)	$ (1)