XML 73 R63.htm IDEA: XBRL DOCUMENT v3.23.3

COLLATERALIZED REINSURANCE AND TRUST AGREEMENTS - Summary of Collateralized Reinsurance Agreements (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Effects of Reinsurance [Line Items]
Limit	$ 89	$ 68	$ 187	$ 150
Kilimanjaro Re Limited
Effects of Reinsurance [Line Items]
Limit			1,800
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2019-1 Class A-1
Effects of Reinsurance [Line Items]
Limit			150
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2019-1 Class A-2
Effects of Reinsurance [Line Items]
Limit			150
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2019-1 Class B-1
Effects of Reinsurance [Line Items]
Limit			275
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2019-1 Class B-2
Effects of Reinsurance [Line Items]
Limit			275
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2021-1 Class A-1
Effects of Reinsurance [Line Items]
Limit			150
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2021-1 Class A-2
Effects of Reinsurance [Line Items]
Limit			150
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2021-1 Class B-1
Effects of Reinsurance [Line Items]
Limit			85
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2021-1 Class B-2
Effects of Reinsurance [Line Items]
Limit			90
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2021-1 Class C-1
Effects of Reinsurance [Line Items]
Limit			85
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2021-1 Class C-2
Effects of Reinsurance [Line Items]
Limit			90
Kilimanjaro Re Limited | Reinsurance Contract [Axis]: Series 2022-1 Class A
Effects of Reinsurance [Line Items]
Limit			$ 300

X

- Definition

Amount of written premiums ceded to other entities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479655/944-605-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479655/944-605-50-1

+ Details

Name:	us-gaap_CededPremiumsWritten
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_EffectsOfReinsuranceLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	dei_LegalEntityAxis=eg_KilimanjaroReLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2019-1 Class A-1
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2019-1 Class A-2
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2019-1 Class B-1
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2019-1 Class B-2
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2021-1 Class A-1
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2021-1 Class A-2
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2021-1 Class B-1
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2021-1 Class B-2
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2021-1 Class C-1
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2021-1 Class C-2
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ReinsuranceContractAxis=Series 2022-1 Class A
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: