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Reinsurance and Indemnification - Rollforward of Credit Loss Allowance for Reinsurance Recoverables (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2020 USD ($)
Reinsurance |
Reinsurance Recoverable, Allowance for Credit Loss, Ending Balance | $ (74)
Property and casualty |
Reinsurance |
Reinsurance Recoverable, Allowance for Credit Loss, Beginning Balance | (60)
Increase (decrease) in the provision for credit losses | 1
Write-offs | 0
Reinsurance Recoverable, Allowance for Credit Loss, Ending Balance | (59)
Allstate Annuities, Allstate Life and Allstate Benefits |
Reinsurance |
Reinsurance Recoverable, Allowance for Credit Loss, Beginning Balance | (3)
Increase (decrease) in the provision for credit losses | (1)
Write-offs | 0
Reinsurance Recoverable, Allowance for Credit Loss, Ending Balance | (15)
Allstate Annuities, Allstate Life and Allstate Benefits | Cumulative effect of change in accounting principle |
Reinsurance |
Reinsurance Recoverable, Allowance for Credit Loss, Beginning Balance | $ (11)

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- Definition Amount of the write-down or write-off of a receivable from a reinsurer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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- Definition Amount of increase (decrease) in 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 Amount of allowance for credit loss on reinsurance recoverable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 + Details
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