XML 89 R72.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Fair Value of Assets and Liabilities - Change in unrealized gains and losses included in net income for level 3 assets and liabilities (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Total recurring Level 3 assets | $ (19) | $ 11 | $ 51 | $ 25
Total recurring Level 3 liabilities | 0 | 15 | 0 | 46
Total included in net income | (19) | 26 | 51 | 71
Total included in net income | (19) | 10 | 51 | 22
Changes in unrealized net capital gains and losses reported in OCI | (4) | 0 | (7) | 0
Net investment income |  |  |  |
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Total included in net income | 3 | 6 | 16 | (1)
Net gains (losses) on investments and derivatives |  |  |  |
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Total included in net income | (22) | 4 | 35 | 23
Liabilities held for sale |  |  |  |
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Total recurring Level 3 liabilities | 0 | 15 | 0 | 46
Municipal |  |  |  |
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Total recurring Level 3 assets | 0 | 1 | 0 | 0
Changes in unrealized net capital gains and losses reported in OCI | 0 | (1) | 1 | 0
Corporate - privately placed |  |  |  |
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Total recurring Level 3 assets | 1 | 0 | 1 | 0
Changes in unrealized net capital gains and losses reported in OCI | (1) | 1 | (2) | 1
Fixed income securities |  |  |  |
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Total recurring Level 3 assets | 1 | 1 | 1 | 0
Equity securities |  |  |  |
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Total recurring Level 3 assets | (16) | 9 | 11 | 22
Other assets |  |  |  |
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Total recurring Level 3 assets | (4) | 0 | 39 | 0
Assets held for sale |  |  |  |
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Total recurring Level 3 assets | 0 | 1 | 0 | 3
Corporate - public |  |  |  |
Gains (losses) included in net income for Level 3 assets and liabilities: |  |  |  |
Changes in unrealized net capital gains and losses reported in OCI | $ (3) | $ 0 | $ (6) | $ (1)

X
- Definition This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets). Such unrealized (holding) gains or losses relate to those assets and liabilities still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3). + References No definition available. + Details
Name: | all_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | all_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputsGainLossLineItems
Namespace Prefix: | all_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets). Such unrealized (holding) gains or losses relate to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3). + References No definition available. + Details
Name: | all_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of unrealized and realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References No definition available. + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=all_NetInvestmentIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=all_RealizedCapitalGainsAndLossesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=all_LiabilitiesHeldForSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=all_CorporateDebtSecuritiesPrivatePlacementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_FixedIncomeSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_OtherAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=all_AssetsHeldForSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=all_CorporateDebtSecuritiesPublicMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |