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CREDIT FACILITIES - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2024 EUR (€)	Dec. 31, 2024 GBP (£)	Dec. 30, 2024 EUR (€)	Oct. 30, 2024 GBP (£)	Aug. 16, 2024	Dec. 27, 2023 USD ($)	Dec. 13, 2023	Aug. 18, 2023 USD ($)	Dec. 30, 2022 USD ($)	Nov. 21, 2022 USD ($)	Nov. 03, 2021 USD ($)	Aug. 27, 2021 USD ($)	May 05, 2021 USD ($)	Feb. 23, 2021 USD ($)
Line of Credit Facility [Line Items]
Line of credit facility, commitment	$ 1,700,000,000
Maximum uncommitted amount available	240,000,000
Extension period for availability									2 years
Borrowings from FHLB	1,019,000,000	$ 819,000,000
Bermuda Re Bayerische Landesbank Bilateral Letter of Credit Facility
Line of Credit Facility [Line Items]
Extension period for availability							3 years
Everest Reinsurance Company (Everest Re)
Line of Credit Facility [Line Items]
Borrowings from FHLB	$ 1,000,000,000.0
Federal Home Loan Bank Membership | Everest Reinsurance Company (Everest Re)
Line of Credit Facility [Line Items]
Maximum percentage of admitted assets allowed for borrowing base	10.00%		10.00%	10.00%
Admitted assets for FHLB	$ 30,800,000,000
Maximum amount available under FHLB	3,100,000,000
Interest expense	$ 45,000,000	30,000,000
Amount of borrowed funds required to be used to acquire additional membership stock, percentage	4.50%
Qualifying collateral pledged	$ 1,300,000,000
Everest International Reinsurance, Ltd. Funds at Lloyds Syndicated Letter of Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, commitment | £				£ 113,000,000		£ 113,000,000
Everest Reinsurance Company (Ireland), dac Commerzbank Letter of Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, commitment | €			€ 75,000,000		€ 75,000,000
Bermuda Re Wells Fargo Bilateral Letter of Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, commitment	500,000,000	500,000,000													$ 500,000,000	$ 50,000,000
Bermuda Re Citibank Letter of Credit Facility - Uncommitted
Line of Credit Facility [Line Items]
Maximum uncommitted amount available	140,000,000
Bermuda Re Citibank Letter of Credit Facility One
Line of Credit Facility [Line Items]
Line of credit facility, commitment	230,000,000	230,000,000
Bermuda Re Bayerische Landesbank Bilateral Secured Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, commitment	200,000,000	200,000,000												$ 200,000,000
Bermuda Re Bayerische Landesbank Bilateral Unsecured Letter of Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, commitment	150,000,000	150,000,000									$ 150,000,000
Bermuda Re Lloyd's Bank Credit Facility-Committed
Line of Credit Facility [Line Items]
Line of credit facility, commitment	250,000,000	250,000,000						$ 15,000,000		$ 250,000,000
Bermuda Re Barclays Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, commitment	200,000,000	200,000,000											$ 200,000,000
Extension period for availability						3 years
Bermuda Re Nordea Bank Letter of Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, commitment	300,000,000	300,000,000										$ 300,000,000
Nordea Bank Letter of Credit Facility - Committed
Line of Credit Facility [Line Items]
Line of credit facility, commitment	200,000,000	200,000,000										200,000,000
Nordea Bank Letter of Credit Facility - Uncommitted
Line of Credit Facility [Line Items]
Line of credit facility, commitment	$ 100,000,000	$ 100,000,000										$ 100,000,000

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Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB).

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The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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