REVISION OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS - Statements of Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Benefits and other deductions
Change in Market Risk Benefits and Purchased Market Risk Benefits	$ (1,592)	$ (12)	$ 0
Total benefits and other deductions	1,151	653	570
Income (loss) from continuing operations, before income taxes	1,425	(110)	(109)
Income tax (expense) benefit from continuing operations	(234)	22	24
Net income (loss) from continuing operations		(88)
Net income (loss)	$ 1,191	(88)	$ (85)
As Previously Reported
Benefits and other deductions
Change in Market Risk Benefits and Purchased Market Risk Benefits		(15)
Total benefits and other deductions		650
Income (loss) from continuing operations, before income taxes		(107)
Income tax (expense) benefit from continuing operations		21
Net income (loss) from continuing operations		(86)
Net income (loss)		(86)
Adjustments
Benefits and other deductions
Change in Market Risk Benefits and Purchased Market Risk Benefits		3
Total benefits and other deductions		3
Income (loss) from continuing operations, before income taxes		(3)
Income tax (expense) benefit from continuing operations		1
Net income (loss) from continuing operations		(2)
Net income (loss)		$ (2)