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Reinsurance and Indemnification - U.S. Homeowners Aggregate (Details) - U.S. Homeowners Aggregate Reinsurance Program $ in Millions	7 Months Ended
	Dec. 31, 2025 USD ($)
Reinsurance Retention Policy [Line Items]
Limit of aggregate losses under aggregate excess agreement	$ 3,500
Insurance Linked Securities (ILS)
Reinsurance Retention Policy [Line Items]
Aggregate contract term	7 months
Limit of aggregate losses under aggregate excess agreement	$ 325

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- Definition

Catastrophe Reinsurance Aggregate Contract Term

+ References

No definition available.

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- Definition

The limit of aggregated losses per contract year beyond which coverage provided by an aggregate excess agreement applies.

+ References

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- 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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479838/944-20-50-3

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