LIABILITIES FOR FUTURE POLICYHOLDER BENEFITS -Schedule of Balances of and Changes in Additional Liabilities Related to Insurance Guarantees (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Net liability for additional liability	$ 16,474		$ 16,573
Weighted Average Interest Rate	4.50%	4.50%
Assessments
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Revenue and Interest Accretion	$ 338	$ 350
Interest Accretion
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Revenue and Interest Accretion	27	$ 25
UL
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Net liability for additional liability	$ 1,241		1,220
Weighted Average Interest Rate	4.50%	4.50%
UL | Assessments
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Revenue and Interest Accretion	$ 338	$ 350
UL | Interest Accretion
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Revenue and Interest Accretion	27	25
Protection Solutions | UL
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Balance, beginning of period	1,220	1,120
Beginning balance before AOCI adjustments	1,230	1,135
Effect of changes in interest rate and cash flow assumptions and model changes			0	$ 0
Effect of actual variances from expected			(2)	4
Adjusted beginning of period balance			1,228	1,139
Interest accrual	27	25
Net assessments collected	35	36
Benefit payments	(35)	(30)
Ending balance before shadow reserve adjustments	1,255	1,170	$ 1,230	$ 1,135
Effect of reserve adjustment recorded in AOCI	(14)	(8)
Balance, end of period	1,241	1,162
Net liability for additional liability	1,241	1,162
Less: Reinsurance recoverable	(959)	(901)
Net liability for future policy benefits, after reinsurance recoverable	$ 282	$ 261
Weighted-average duration of additional liability - death benefit (years)	19 years 6 months	21 years 4 months 24 days