REVISION OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS - Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investments:
Fixed maturities available for sale, at fair value	$ 2,244			$ 2,572	$ 2,420
Other equity investments	19			23	25
Total investments	2,550			2,869
Amounts due from reinsurers	1,096	$ 1,104	$ 1,120	1,123	1,169
Current and deferred income taxes	126	95	60	17	28
Other assets	134	42	55	46	75
Total Assets	7,859	7,697	8,138	8,213	7,284
LIABILITIES
Future policy benefits and other policyholders' liabilities	641	595	530	457	398
Total Liabilities	7,475	7,318	7,608	7,514	6,503
Equity:
Common Stock	3	3	3	3
Additional paid-in capital	783	682	681	680	692
Treasury shares, at cost		0	0
Accumulated deficit	(94)	(105)	(90)	(70)	(50)
Accumulated other comprehensive income (loss)	(308)			86	136
Total Equity	384	379	530	699	781
Total Liabilities and Equity	$ 7,859	7,697	8,138	8,213	7,284
As Previously Reported
Investments:
Fixed maturities available for sale, at fair value				2,572	2,445
Other equity investments				23	0
Amounts due from reinsurers		1,101	1,117	1,136	1,186
Current and deferred income taxes		94	58	15	27
Other assets		55	67	57	81
Total Assets		7,706	8,145	8,235	7,306
LIABILITIES
Future policy benefits and other policyholders' liabilities		592	527	470	415
Total Liabilities		7,315	7,605	7,527	6,520
Equity:
Common Stock		3	3
Additional paid-in capital		681	680	679	692
Treasury shares, at cost		0	0
Accumulated deficit		(92)	(79)	(60)	(47)
Accumulated other comprehensive income (loss)				86	138
Total Equity		391	540	708	786
Total Liabilities and Equity		7,706	8,145	8,235	7,306
Impact of Revisions
Investments:
Fixed maturities available for sale, at fair value				0	(25)
Other equity investments				0	25
Amounts due from reinsurers		3	3	(13)	(17)
Current and deferred income taxes		1	2	2	1
Other assets		(13)	(12)	(11)	(6)
Total Assets		(9)	(7)	(22)	(22)
LIABILITIES
Future policy benefits and other policyholders' liabilities		3	3	(13)	(17)
Total Liabilities		3	3	(13)	(17)
Equity:
Common Stock		0	0
Additional paid-in capital		1	1	1	0
Treasury shares, at cost		0	0
Accumulated deficit		(13)	(11)	(10)	(3)
Accumulated other comprehensive income (loss)				0	(2)
Total Equity		(12)	(10)	(9)	(5)
Total Liabilities and Equity		$ (9)	$ (7)	$ (22)	$ (22)