REVISION OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS - Statement of Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended	9 Months Ended
	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2023	Sep. 30, 2023
Cash flow from operating activities
Net income (loss)	$ (83)	$ 481	$ 51	$ 62	$ 113	$ 594
Policy charges and fee income	(404)	(411)	(410)	(61)	(471)	(882)
Net derivative (gains) losses	1,055	336	699	(6)	693	1,029
Remeasurement of liability for future policy benefits	(9)	23	(1)	(1)	(2)	21
Change in Market Risk Benefits	(1,034)			1	(838)	(1,830)
Future policy benefits	154			9	222	365
Funds Withheld	18			0	(161)	(219)
Current and deferred income taxes	(23)			(72)	(63)
Other, net	360			89	455	984
Net cash provided by (used in) operating activities	$ 234			(20)	888	452
As Previously Reported
Cash flow from operating activities
Net income (loss)		516	14	63	77	593
Policy charges and fee income		(410)	(411)		(472)	(882)
Net derivative (gains) losses		340	700		694	1,034
Remeasurement of liability for future policy benefits		10	1		0	10
Change in Market Risk Benefits				0	(862)	(1,842)
Future policy benefits					133	264
Funds Withheld					13	(87)
Current and deferred income taxes					(66)
Other, net					431	972
Net cash provided by (used in) operating activities				(20)	888	452
Adjustments
Cash flow from operating activities
Net income (loss)		(35)	37	(1)	36	1
Policy charges and fee income		(1)	1		1	0
Net derivative (gains) losses		(4)	(1)		(1)	(5)
Remeasurement of liability for future policy benefits		$ 13	$ (2)		(2)	11
Change in Market Risk Benefits				1	24	12
Future policy benefits					89	101
Funds Withheld					(174)	(132)
Current and deferred income taxes					3
Other, net					24	12
Net cash provided by (used in) operating activities				$ 0	$ 0	$ 0