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v3.20.2

Reinsurance (Tables) | 6 Months Ended
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Jun. 30, 2020
Credit Loss [Abstract] |
Reinsurance Recoverable, Credit Quality Indicator [Table Text Block] |
Reinsurance Recoverables by Credit Quality Indicator as of June 30, 2020
| Property and Casualty | Group Benefits | Corporate | Total
A.M. Best Financial Strength Rating |  |  |  |
A++ | $ | 1,242 |  | $ | — |  | $ | — |  | $ | 1,242 |
A+ | 1,752 |  | 232 |  | 311 |  | 2,295 |
A | 591 |  | — |  | — |  | 591 |
A- | 26 |  | 9 |  | — |  | 35 |
B++ | 678 |  | — |  | 3 |  | 681 |
Below B++ | 23 |  | 1 |  | — |  | 24 |
Total Rated by A.M. Best | 4,312 |  | 242 |  | 314 |  | 4,868 |
Mandatory (Assigned) and Voluntary Risk Pools | 264 |  | — |  | — |  | 264 |
Captives | 322 |  | — |  | — |  | 322 |
Other not rated companies | 288 |  | 9 |  | — |  | 297 |
Gross Reinsurance Recoverables | 5,186 |  | 251 |  | 314 |  | 5,751 |
Allowance for uncollectible reinsurance | (108 | ) | (1 | ) | (2 | ) | (111 | )
Net Reinsurance Recoverables | $ | 5,078 |  | $ | 250 |  | $ | 312 |  | $ | 5,640 |
Reinsurance Recoverable, Allowance for Credit Loss [Table Text Block] |
Allowance for Uncollectible Reinsurance
| Three Months Ended June 30, 2020 |  | Six Months Ended June 30, 2020
| Property and Casualty | Group Benefits | Corporate | Total |  | Property and Casualty | Group Benefits | Corporate | Total
Beginning allowance for uncollectible reinsurance | $ | (114 | ) | $ | (1 | ) | $ | (2 | ) | $ | (117 | ) |  | $ | (114 | ) | $ | — |  | $ | — |  | $ | (114 | )
Beginning allowance for disputed amounts | (65 | ) | — |  | — |  | (65 | ) |  | (66 | ) | — |  | — |  | (66 | )
Beginning ACL | (49 | ) | (1 | ) | (2 | ) | (52 | ) |  | (48 | ) | — |  | — |  | (48 | )
Cumulative effect of accounting change [1] | — |  | — |  | — |  | — |  |  | — |  | (1 | ) | (1 | ) | (2 | )
Adjusted beginning ACL | (49 | ) | (1 | ) | (2 | ) | (52 | ) |  | (48 | ) | (1 | ) | (1 | ) | (50 | )
Current period provision | (1 | ) | — |  | — |  | (1 | ) |  | (2 | ) | — |  | (1 | ) | (3 | )
Current period gross recoveries | (1 | ) | — |  | — |  | (1 | ) |  | (1 | ) | — |  | — |  | (1 | )
Ending ACL | (51 | ) | (1 | ) | (2 | ) | (54 | ) |  | (51 | ) | (1 | ) | (2 | ) | (54 | )
Ending allowance for disputed amounts | (57 | ) | — |  | — |  | (57 | ) |  | (57 | ) | — |  | — |  | (57 | )
Ending allowance for uncollectible reinsurance | $ | (108 | ) | $ | (1 | ) | $ | (2 | ) | $ | (111 | ) |  | $ | (108 | ) | $ | (1 | ) | $ | (2 | ) | $ | (111 | )
[1] Represents the adjustment to the ACL recorded on adoption of accounting guidance for credit losses on January 1, 2020. For further information refer to Note 1 - Basis of Presentation and Significant Accounting Policies

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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=121599337&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=121599337&loc=SL82919230-210447 + Details
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