FAIR VALUE DISCLOSURES - Schedules Of Assets And Liabilities Measured On Recurring Basis (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Assets:
Fixed maturities available for sale, at fair value	$ 9,891	$ 2,218
U.S. Treasury, government and agency
Assets:
Fixed maturities available for sale, at fair value	15	14
States and political subdivisions
Assets:
Fixed maturities available for sale, at fair value	43	34
Foreign governments
Assets:
Fixed maturities available for sale, at fair value	31
Residential mortgage-backed
Assets:
Fixed maturities available for sale, at fair value	972	6
Asset-backed
Assets:
Fixed maturities available for sale, at fair value	2,986	41
Commercial mortgage-backed
Assets:
Fixed maturities available for sale, at fair value	182	65
Fair Value, Recurring
Assets:
Fixed maturities available for sale, at fair value	9,891	2,218
Other equity investments	19	19
Other invested assets:	968	18
Cash equivalents	1,654	272
Funds withheld receivable	100	0
Purchased market risk benefits	9	13
Assets for market risk benefits	24	11
Separate Accounts assets	5,754	3,374
Total Assets	18,419	5,925
Liabilities:
Liabilities for market risk benefits	7,333	16
Total Liabilities	15,726	103
Fair Value, Recurring \| Corporate
Assets:
Fixed maturities available for sale, at fair value	5,662	2,058
Fair Value, Recurring \| U.S. Treasury, government and agency
Assets:
Fixed maturities available for sale, at fair value	15	14
Fair Value, Recurring \| States and political subdivisions
Assets:
Fixed maturities available for sale, at fair value	43	34
Fair Value, Recurring \| Foreign governments
Assets:
Fixed maturities available for sale, at fair value	31	6
Fair Value, Recurring \| Residential mortgage-backed
Assets:
Fixed maturities available for sale, at fair value	972
Fair Value, Recurring \| Asset-backed
Assets:
Fixed maturities available for sale, at fair value	2,986	41
Fair Value, Recurring \| Commercial mortgage-backed
Assets:
Fixed maturities available for sale, at fair value	182	65
Fair Value, Recurring \| Options
Assets:
Other invested assets:	968	18
Fair Value, Recurring \| SCS, MSO and IUL indexed features’ liability
Liabilities:
Guarantees	8,804	87
Fair Value, Recurring \| Modco receivable
Liabilities:
Guarantees	(411)	0
Fair Value, Recurring \| Level 1
Assets:
Fixed maturities available for sale, at fair value	0	0
Other equity investments	0	0
Other invested assets:	0	0
Cash equivalents	1,654	272
Funds withheld receivable	0	0
Purchased market risk benefits	0	0
Assets for market risk benefits	0	0
Separate Accounts assets	5,747	3,367
Total Assets	7,401	3,639
Liabilities:
Liabilities for market risk benefits	0	0
Total Liabilities	0	0
Fair Value, Recurring \| Level 1 \| Corporate
Assets:
Fixed maturities available for sale, at fair value	0	0
Fair Value, Recurring \| Level 1 \| U.S. Treasury, government and agency
Assets:
Fixed maturities available for sale, at fair value	0	0
Fair Value, Recurring \| Level 1 \| States and political subdivisions
Assets:
Fixed maturities available for sale, at fair value	0	0
Fair Value, Recurring \| Level 1 \| Foreign governments
Assets:
Fixed maturities available for sale, at fair value	0	0
Fair Value, Recurring \| Level 1 \| Residential mortgage-backed
Assets:
Fixed maturities available for sale, at fair value	0
Fair Value, Recurring \| Level 1 \| Asset-backed
Assets:
Fixed maturities available for sale, at fair value	0	0
Fair Value, Recurring \| Level 1 \| Commercial mortgage-backed
Assets:
Fixed maturities available for sale, at fair value	0	0
Fair Value, Recurring \| Level 1 \| Options
Assets:
Other invested assets:	0	0
Fair Value, Recurring \| Level 1 \| SCS, MSO and IUL indexed features’ liability
Liabilities:
Guarantees	0	0
Fair Value, Recurring \| Level 1 \| Modco receivable
Liabilities:
Guarantees	0	0
Fair Value, Recurring \| Level 2
Assets:
Fixed maturities available for sale, at fair value	9,779	2,200
Other equity investments	19	19
Other invested assets:	968	18
Cash equivalents	0	0
Funds withheld receivable	0	0
Purchased market risk benefits	0	0
Assets for market risk benefits	0	0
Separate Accounts assets	7	7
Total Assets	10,773	2,244
Liabilities:
Liabilities for market risk benefits	0	0
Total Liabilities	8,804	87
Fair Value, Recurring \| Level 2 \| Corporate
Assets:
Fixed maturities available for sale, at fair value	5,575	2,040
Fair Value, Recurring \| Level 2 \| U.S. Treasury, government and agency
Assets:
Fixed maturities available for sale, at fair value	15	14
Fair Value, Recurring \| Level 2 \| States and political subdivisions
Assets:
Fixed maturities available for sale, at fair value	43	34
Fair Value, Recurring \| Level 2 \| Foreign governments
Assets:
Fixed maturities available for sale, at fair value	31	6
Fair Value, Recurring \| Level 2 \| Residential mortgage-backed
Assets:
Fixed maturities available for sale, at fair value	972
Fair Value, Recurring \| Level 2 \| Asset-backed
Assets:
Fixed maturities available for sale, at fair value	2,962	41
Fair Value, Recurring \| Level 2 \| Commercial mortgage-backed
Assets:
Fixed maturities available for sale, at fair value	181	65
Fair Value, Recurring \| Level 2 \| Options
Assets:
Other invested assets:	968	18
Fair Value, Recurring \| Level 2 \| SCS, MSO and IUL indexed features’ liability
Liabilities:
Guarantees	8,804	87
Fair Value, Recurring \| Level 2 \| Modco receivable
Liabilities:
Guarantees	0	0
Fair Value, Recurring \| Level 3
Assets:
Fixed maturities available for sale, at fair value	112	18
Other equity investments	0	0
Other invested assets:	0	0
Cash equivalents	0	0
Funds withheld receivable	100	0
Purchased market risk benefits	9	13
Assets for market risk benefits	24	11
Separate Accounts assets	0	0
Total Assets	245	42
Liabilities:
Liabilities for market risk benefits	7,333	16
Total Liabilities	6,922	16
Fair Value, Recurring \| Level 3 \| Corporate
Assets:
Fixed maturities available for sale, at fair value	87	18
Fair Value, Recurring \| Level 3 \| U.S. Treasury, government and agency
Assets:
Fixed maturities available for sale, at fair value	0	0
Fair Value, Recurring \| Level 3 \| States and political subdivisions
Assets:
Fixed maturities available for sale, at fair value	0	0
Fair Value, Recurring \| Level 3 \| Foreign governments
Assets:
Fixed maturities available for sale, at fair value	0	0
Fair Value, Recurring \| Level 3 \| Residential mortgage-backed
Assets:
Fixed maturities available for sale, at fair value	0
Fair Value, Recurring \| Level 3 \| Asset-backed
Assets:
Fixed maturities available for sale, at fair value	24	0
Fair Value, Recurring \| Level 3 \| Commercial mortgage-backed
Assets:
Fixed maturities available for sale, at fair value	1	0
Fair Value, Recurring \| Level 3 \| Options
Assets:
Other invested assets:	0	0
Fair Value, Recurring \| Level 3 \| SCS, MSO and IUL indexed features’ liability
Liabilities:
Guarantees	0	0
Fair Value, Recurring \| Level 3 \| Modco receivable
Liabilities:
Guarantees	(411)	0
Fair Value, Recurring \| NAV
Assets:
Separate Accounts assets	$ 1	$ 1

Funds Withheld Receivable, Fair Value Disclosure

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investments GMIB reinsurance contracts as of the balance sheet date.

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of investments accounted under the equity method.

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Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services.

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Fair value of financial and nonfinancial obligations.

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