DERIVATIVES - Derivatives by Category (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Futures
Derivatives, Fair Value [Line Items]
Notional Amount	$ 2,277	$ 394
Derivative Assets	0	0
Derivative Liabilities	0	0
Net Derivatives	0	0
Options
Derivatives, Fair Value [Line Items]
Notional Amount	4,930	209
Derivative Assets	1,370	34
Derivative Liabilities	402	16
Net Derivatives	968	18
Futures
Derivatives, Fair Value [Line Items]
Notional Amount	522	282
Derivative Assets	0	0
Derivative Liabilities	0	0
Net Derivatives	0	0
Margin
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	133	29
Derivative Liabilities	0	0
Net Derivatives	133	29
Collateral
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	0	0
Derivative Liabilities	956	3
Net Derivatives	(956)	(3)
Derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	7,729	885
Derivative Assets	1,503	63
Derivative Liabilities	1,358	19
Net Derivatives	145	44
SCS, SIO, MSO and IUL indexed features
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	0	0
Derivative Liabilities	8,804	87
Net Derivatives	(8,804)	(87)
Funds withheld receivable
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	100	0
Derivative Liabilities	0	0
Net Derivatives	100	0
Modco receivable
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	0	0
Derivative Liabilities	(411)	0
Net Derivatives	411	0
Embedded derivative
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	100	0
Derivative Liabilities	8,393	87
Net Derivatives	(8,293)	(87)
Total derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	7,729	885
Derivative Assets	1,603	63
Derivative Liabilities	9,751	106
Net Derivatives	$ (8,148)	$ (43)