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Credit Losses (Tables) | 3 Months Ended
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Mar. 31, 2023
Credit Loss [Abstract] |
Credit Loss Allowance Activity [Table] | The following tables summarize our allowance for expected credit losses by pooled asset for the three months ended March 31, 2023 and 2022:
March 31, 2023 |  | December 31, 2022 |  | Provision for expected credit losses |  | Write-offs |  | March 31, 2023
Premiums Receivable |  | $ | 32 |  |  | $ | (34) |  |  | $ | 29 |  |  | $ | 27 |
Reinsurance Recoverables |  | 333 |  |  | (183) |  |  | — |  |  | 150 |
Total |  | $ | 365 |  |  | $ | (217) |  |  | $ | 29 |  |  | $ | 177 |
March 31, 2022 |  | December 31, 2021 |  | Provision for expected credit losses |  | Write-offs |  | March 31, 2022
Premiums Receivable |  | $ | 16 |  |  | $ | (14) |  |  | $ | 10 |  |  | $ | 12 |
Reinsurance Recoverables |  | 58 |  |  | 22 |  |  | — |  |  | 80 |
Total |  | $ | 74 |  |  | $ | 8 |  |  | $ | 10 |  |  | $ | 92 |

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