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v3.24.3

Reinsurance (Tables) | 9 Months Ended
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Sep. 30, 2024
Reinsurance Disclosures [Abstract] |
Reinsurance Recoverable, Credit Quality Indicator [Table Text Block] |
Reinsurance Recoverables by Credit Quality Indicator
| As of September 30, 2024 |  | As of December 31, 2023
| P&C | Group Benefits | Corporate | Total |  | P&C | Group Benefits | Corporate | Total
A.M. Best Financial Strength Rating |  |  |  |  |  |  |  |  |
A++ | $ | 2,284 |  | $ | — |  | $ | — |  | $ | 2,284 |  |  | $ | 2,398 |  | $ | — |  | $ | — |  | $ | 2,398 |
A+ | 2,066 |  | 276 |  | 226 |  | 2,568 |  |  | 2,030 |  | 251 |  | 241 |  | 2,522 |
A | 808 |  | 1 |  | — |  | 809 |  |  | 810 |  | 1 |  | — |  | 811 |
A- | 624 |  | 4 |  | — |  | 628 |  |  | 653 |  | 5 |  | — |  | 658 |
B++ | 2 |  | — |  | 2 |  | 4 |  |  | 2 |  | — |  | 3 |  | 5 |
Below B++ | 22 |  | — |  | — |  | 22 |  |  | 22 |  | — |  | — |  | 22 |
Total Rated by A.M. Best | 5,806 |  | 281 |  | 228 |  | 6,315 |  |  | 5,915 |  | 257 |  | 244 |  | 6,416 |
Mandatory (Assigned) and Voluntary Risk Pools | 206 |  | — |  | — |  | 206 |  |  | 208 |  | — |  | — |  | 208 |
Captives | 373 |  | — |  | — |  | 373 |  |  | 353 |  | — |  | — |  | 353 |
Other not rated companies | 254 |  | 6 |  | — |  | 260 |  |  | 226 |  | 4 |  | — |  | 230 |
Gross Reinsurance Recoverables | 6,639 |  | 287 |  | 228 |  | 7,154 |  |  | 6,702 |  | 261 |  | 244 |  | 7,207 |
Allowance for uncollectible reinsurance | (99) |  | (1) |  | (2) |  | (102) |  |  | (100) |  | (1) |  | (2) |  | (103) |
Net Reinsurance Recoverables | $ | 6,540 |  | $ | 286 |  | $ | 226 |  | $ | 7,052 |  |  | $ | 6,602 |  | $ | 260 |  | $ | 242 |  | $ | 7,104 |
Reinsurance Recoverable, Allowance for Credit Loss [Table Text Block] |
Allowance for Uncollectible Reinsurance for the Three and Nine Months Ended
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 | 2023 |  | 2024 | 2023
P&C beginning allowance for uncollectible reinsurance | $ | 99 |  | $ | 107 |  |  | $ | 100 |  | $ | 102 |
Beginning allowance for disputed amounts | 54 |  | 62 |  |  | 57 |  | 60 |
P&C beginning ACL | 45 |  | 45 |  |  | 43 |  | 42 |
Current period provision | 1 |  | 1 |  |  | 3 |  | 4 |
Current period gross write-offs | (1) |  | — |  |  | (1) |  | — |
P&C ending ACL | 45 |  | 46 |  |  | 45 |  | 46 |
Ending allowance for disputed amounts | 54 |  | 60 |  |  | 54 |  | 60 |
P&C ending allowance for uncollectible reinsurance | 99 |  | 106 |  |  | 99 |  | 106 |
Group Benefits allowance for uncollectible reinsurance | 1 |  | 1 |  |  | 1 |  | 1 |
Corporate allowance for uncollectible reinsurance | 2 |  | 2 |  |  | 2 |  | 2 |
Total allowance for uncollectible reinsurance | $ | 102 |  | $ | 109 |  |  | $ | 102 |  | $ | 109 |

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- Definition Tabular disclosure of allowance for credit loss on reinsurance recoverable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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- Definition Tabular disclosure of credit quality indicator for reinsurance recoverable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
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