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v3.23.2

Claim and Claim Adjustment Expense Reserves (Net prior year development) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Segment Reporting Information [Line Items] |  |  |  |
Total pretax (favorable) unfavorable development | $ 18 | $ 27 | $ 31 | $ 15
Specialty |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total pretax (favorable) unfavorable development | (4) | (10) | (4) | (20)
Commercial |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total pretax (favorable) unfavorable development | (13) | (22) | (15) | (24)
International |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total pretax (favorable) unfavorable development | 0 | (5) | 15 | (5)
Corporate & Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total pretax (favorable) unfavorable development | $ 35 | $ 64 | $ 35 | $ 64

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- Definition Pretax Favorable Unfavorable Premium Development, excluding Life & Group + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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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 No definition available. + Details
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- Details
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Namespace Prefix: |
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- Details
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Period Type: |

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- Details
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Namespace Prefix: |
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- Details
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