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.

No definition available.

+ Details

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- Definition

Amount, after effects of reinsurance, of expense for claims incurred in the current reporting period and related claims settlement costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480046/944-40-55-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480081/944-40-50-3

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- Definition

Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs.

+ References

+ Details

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Loss reserves - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Loss reserves - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2025	Mar. 31, 2024
Scenario 2
Liability for Claims and Claims Adjustment Expense [Line Items]
Adjustments on prior accident year reserves		$ 54
Scenario 1
Liability for Claims and Claims Adjustment Expense [Line Items]
Losses and LAE incurred	$ 78
Scenario 2
Liability for Claims and Claims Adjustment Expense [Line Items]
Losses and LAE incurred		$ 74
Scenario Two
Liability for Claims and Claims Adjustment Expense [Line Items]
Adjustments on prior accident year reserves	$ 47