DERIVATIVES - Derivatives by Category (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Total derivative instruments
Derivatives, Fair Value [Line Items]
Notional Amount	$ 10,146	$ 7,729
Derivative Assets	2,205	1,603
Derivative Liabilities	13,019	9,751
Net Derivatives	(10,814)	(8,148)
Derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	10,146	7,729
Derivative Assets	2,234	1,503
Derivative Liabilities	2,089	1,358
Net Derivatives	145	145
Futures
Derivatives, Fair Value [Line Items]
Notional Amount	2,470	2,277
Derivative Assets	0	0
Derivative Liabilities	0	0
Net Derivatives	0	0
Options
Derivatives, Fair Value [Line Items]
Notional Amount	6,957	4,930
Derivative Assets	2,096	1,370
Derivative Liabilities	538	402
Net Derivatives	1,558	968
Futures
Derivatives, Fair Value [Line Items]
Notional Amount	719	522
Derivative Assets	0	0
Derivative Liabilities	0	0
Net Derivatives	0	0
Margin
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	138	133
Derivative Liabilities	0	0
Net Derivatives	138	133
Collateral
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	0	0
Derivative Liabilities	1,551	956
Net Derivatives	(1,551)	(956)
Total embedded derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	(29)	100
Derivative Liabilities	10,930	8,393
Net Derivatives	(10,959)	(8,293)
SCS, SIO, MSO and IUL indexed features
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	0	0
Derivative Liabilities	11,222	8,804
Net Derivatives	(11,222)	(8,804)
Funds withheld receivable
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	(29)	100
Derivative Liabilities	0	0
Net Derivatives	(29)	100
Modco receivable
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	0	0
Derivative Liabilities	(292)	(411)
Net Derivatives	$ 292	$ 411