INVESTMENTS - Available-for-sale Securities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 61,728	$ 61,884
Allowance for Credit Losses	2	4
Gross Unrealized Gains	219	257
Gross Unrealized Losses	7,868	6,972
Fair Value	54,077	55,165
Amortized Cost (Less Allowance for Credit Losses)
Due in one year or less	2,223
Due in years two through five	11,193
Due in years six through ten	12,702
Due after ten years	22,707
Subtotal	48,825
Amortized Cost (Less Allowance for Credit Losses)	61,726
Fair Value
Due in one year or less	2,212
Due in years two through five	10,822
Due in years six through ten	11,741
Due after ten years	16,906
Subtotal	41,681
Fair Value	54,077	55,165
Available For Sale Fixed Maturities Proceeds Gross Gains And Gross Losses From Sales And Other Than Temporary Impairments [Abstract]
Proceeds from sales	1,832	6,471	$ 11,683
Gross gains on sales	5	9	38
Gross losses on sales	(56)	(594)	(668)
Net (increase) decrease in Allowance for Credit and Intent to Sell losses	(7)	(67)	(253)
Gross gains on sales related to funds withheld assets held	0	0
Gross losses on sales related to funds withheld assets held	32	153
Fixed Maturities - Credit Loss Impairments
Balance, beginning of period	48	36	42
Previously recognized impairments on securities that matured, paid, prepaid or sold	(8)	(65)	(261)
Recognized impairments on securities impaired to fair value this period	0	50	246
Credit losses recognized this period on securities for which credit losses were not previously recognized	5	15	0
Additional credit losses this period on securities previously impaired	2	12	9
Balance, end of period	47	48	36
Global Atlantic Transaction
Fixed Maturities - Credit Loss Impairments
Recognized impairments on securities impaired to fair value this period			$ 245
Corporate
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	42,078	42,014
Allowance for Credit Losses	2	4
Gross Unrealized Gains	173	217
Gross Unrealized Losses	5,604	4,960
Fair Value	36,645	37,267
Fair Value
Fair Value	36,645	37,267
U.S. Treasury, government and agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	5,725	5,639
Allowance for Credit Losses	0	0
Gross Unrealized Gains	0	2
Gross Unrealized Losses	1,507	1,102
Fair Value	4,218	4,539
Fair Value
Fair Value	4,218	4,539
States and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	385	525
Allowance for Credit Losses	0	0
Gross Unrealized Gains	1	9
Gross Unrealized Losses	74	64
Fair Value	312	470
Fair Value
Fair Value	312	470
Foreign governments
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	639	689
Allowance for Credit Losses	0	0
Gross Unrealized Gains	1	2
Gross Unrealized Losses	134	110
Fair Value	506	581
Fair Value
Fair Value	506	581
Residential mortgage-backed
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,840	1,469
Allowance for Credit Losses	0	0
Gross Unrealized Gains	3	3
Gross Unrealized Losses	128	128
Fair Value	1,715	1,344
Amortized Cost (Less Allowance for Credit Losses)
Without single maturity date	1,840
Fair Value
Without single maturity date	1,715
Fair Value	1,715	1,344
Asset-backed
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,495	8,092
Allowance for Credit Losses	0	0
Gross Unrealized Gains	37	20
Gross Unrealized Losses	52	107
Fair Value	7,480	8,005
Amortized Cost (Less Allowance for Credit Losses)
Without single maturity date	7,495
Fair Value
Without single maturity date	7,480
Fair Value	7,480	8,005
Commercial mortgage-backed
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,510	3,400
Allowance for Credit Losses	0	0
Gross Unrealized Gains	1	1
Gross Unrealized Losses	369	501
Fair Value	3,142	2,900
Amortized Cost (Less Allowance for Credit Losses)
Without single maturity date	3,510
Fair Value
Without single maturity date	3,142
Fair Value	3,142	2,900
Redeemable preferred stock
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	56	56
Allowance for Credit Losses	0	0
Gross Unrealized Gains	3	3
Gross Unrealized Losses	0	0
Fair Value	59	59
Amortized Cost (Less Allowance for Credit Losses)
Without single maturity date	56
Fair Value
Without single maturity date	59
Fair Value	$ 59	$ 59