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v3.24.2

Variable Interest Entities - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Mar. 31, 2024 | Dec. 31, 2023
Variable Interest Entity [Line Items] |  |  |  |  |  |
Interests in surplus notes (in percent) | 100.00% |  | 100.00% |  |  |
Skyland |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |
Quota share (as a percent) | 100.00% |  | 100.00% |  |  |
Variable Interest Entity, Primary Beneficiary |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |
Management fee | $ 11 | $ 12 | $ 21 | $ 23 |  |
Notes payable | 123 |  | 123 |  |  | $ 123
Loss of the surplus notes |  |  |  |  | $ 123 |
Variable Interest Entity, Primary Beneficiary | Consolidation, Eliminations |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |
Ceded losses incurred | 18 | 10 | 30 | 17 |  |
Variable Interest Entity, Primary Beneficiary | Allstate Protection |  |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |  |
Insurance premiums and contract charges | 61 | 57 | 122 | 114 |  |
Costs and expenses | $ 58 | $ 85 | $ 145 | $ 144 |  |

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