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v3.22.1

Reinsurance (Tables) | 3 Months Ended
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Mar. 31, 2022
Reinsurance Disclosures [Abstract] |
Reinsurance Recoverable, Credit Quality Indicator [Table Text Block] |
Reinsurance Recoverables by Credit Quality Indicator
| As of March 31, 2022 |  | As of December 31, 2021
| Property and Casualty | Group Benefits | Corporate | Total |  | Property and Casualty | Group Benefits | Corporate | Total
A.M. Best Financial Strength Rating |  |  |  |  |  |  |  |  |
A++ | $ | 1,877 |  | $ | — |  | $ | — |  | $ | 1,877 |  |  | $ | 1,860 |  | $ | — |  | $ | — |  | $ | 1,860 |
A+ | 2,056 |  | 236 |  | 273 |  | 2,565 |  |  | 1,999 |  | 237 |  | 275 |  | 2,511 |
A | 743 |  | 1 |  | — |  | 744 |  |  | 713 |  | — |  | — |  | 713 |
A- | 33 |  | 9 |  | — |  | 42 |  |  | 37 |  | 9 |  | — |  | 46 |
B++ | 633 |  | — |  | 3 |  | 636 |  |  | 639 |  | — |  | 3 |  | 642 |
Below B++ | 20 |  | — |  | — |  | 20 |  |  | 20 |  | — |  | — |  | 20 |
Total Rated by A.M. Best | 5,362 |  | 246 |  | 276 |  | 5,884 |  |  | 5,268 |  | 246 |  | 278 |  | 5,792 |
Mandatory (Assigned) and Voluntary Risk Pools | 234 |  | — |  | — |  | 234 |  |  | 239 |  | — |  | — |  | 239 |
Captives | 340 |  | — |  | — |  | 340 |  |  | 331 |  | — |  | — |  | 331 |
Other not rated companies | 261 |  | 6 |  | — |  | 267 |  |  | 255 |  | 5 |  | — |  | 260 |
Gross Reinsurance Recoverables | 6,197 |  | 252 |  | 276 |  | 6,725 |  |  | 6,093 |  | 251 |  | 278 |  | 6,622 |
Allowance for uncollectible reinsurance | (96) |  | (1) |  | (2) |  | (99) |  |  | (96) |  | (1) |  | (2) |  | (99) |
Net Reinsurance Recoverables | $ | 6,101 |  | $ | 251 |  | $ | 274 |  | $ | 6,626 |  |  | $ | 5,997 |  | $ | 250 |  | $ | 276 |  | $ | 6,523 |
Reinsurance Recoverable, Allowance for Credit Loss [Table Text Block] |
Allowance for Uncollectible Reinsurance for the Three Months Ended
| March 31, 2022 |  | March 31, 2021 |  |
| Property and Casualty | Group Benefits | Corporate | Total |  | Property and Casualty | Group Benefits | Corporate | Total |  |  |  |  |
Beginning allowance for uncollectible reinsurance | $ | 96 |  | $ | 1 |  | $ | 2 |  | $ | 99 |  |  | $ | 105 |  | $ | 1 |  | $ | 2 |  | $ | 108 |  |  |  |  |  |
Beginning allowance for disputed amounts | 54 |  | — |  | — |  | 54 |  |  | 53 |  | — |  | — |  | 53 |  |  |  |  |  |
Beginning ACL | 42 |  | 1 |  | 2 |  | 45 |  |  | 52 |  | 1 |  | 2 |  | 55 |  |  |  |  |  |
Current period provision (release) | (2) |  | — |  | — |  | (2) |  |  | (13) |  | — |  | — |  | (13) |  |  |  |  |  |
Ending ACL | 40 |  | 1 |  | 2 |  | 43 |  |  | 39 |  | 1 |  | 2 |  | 42 |  |  |  |  |  |
Ending allowance for disputed amounts | 56 |  | — |  | — |  | 56 |  |  | 56 |  | — |  | — |  | 56 |  |  |  |  |  |
Ending allowance for uncollectible reinsurance | $ | 96 |  | $ | 1 |  | $ | 2 |  | $ | 99 |  |  | $ | 95 |  | $ | 1 |  | $ | 2 |  | $ | 98 |  |  |  |  |  |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 + Details
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