XML 58 R40.htm IDEA: XBRL DOCUMENT
v3.25.3

Dispositions - Narrative (Details) - USD ($) $ in Millions |  |  | 3 Months Ended | 6 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jul. 01, 2025 | Apr. 01, 2025 | Sep. 30, 2025 | Mar. 31, 2025 | Sep. 30, 2024 | Jun. 30, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Gain on disposition of operations |  |  | $ 720 |  | $ 0 |  | $ 1,610 | $ 0 |
Disposal Group, Held-for-Sale, Not Discontinued Operations | EVB |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from disposal |  | $ 1,900 |  |  |  |  |  |  |
Gain on disposition of operations |  |  |  |  |  |  | 888 |  |
Gain on sale of business after tax |  |  |  |  |  |  | $ 641 |  |
Premiums and contract charges |  |  |  | $ 243 |  |  |  |  |
Adjusted net income (loss) by segment, after-tax |  |  |  | $ 22 |  |  |  |  |
Accumulated other comprehensive losses |  | 51 |  |  |  |  |  |  |
Reserve for future policy benefits |  | $ 1,096 |  |  |  |  |  |  | $ 1,085
Number of period provided for transition services |  | 24 months |  |  |  |  |  |  |
Disposal Group, Held-for-Sale, Not Discontinued Operations | Group Health |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from disposal | $ 1,230 |  |  |  |  |  |  |  |
Gain on disposition of operations |  |  | 722 |  |  |  |  |  |
Gain on sale of business after tax |  |  | $ 506 |  |  |  |  |  |
Premiums and contract charges |  |  |  |  |  | $ 247 |  |  |
Adjusted net income (loss) by segment, after-tax |  |  |  |  |  | $ 21 |  |  |
Reserve for future policy benefits | $ 200 |  |  |  |  |  |  |  |
Number of period provided for transition services | 24 months |  |  |  |  |  |  |  |

X
- Definition Disposal Group, Including Discontinued Operation, Accumulated Other Comprehensive Income (Loss) + References No definition available. + Details
Name: | all_DisposalGroupIncludingDiscontinuedOperationAccumulatedOtherComprehensiveIncomeLoss
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Disposal Group, Including Discontinued Operation, Employer Voluntary Benefits Premiums And Contract Charges + References No definition available. + Details
Name: | all_DisposalGroupIncludingDiscontinuedOperationPremiumsEarnedNet
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, After Tax + References No definition available. + Details
Name: | all_DisposalGroupNotDiscontinuedOperationGainLossOnDisposalAfterTax
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Duration Of Provided Transition Services + References No definition available. + Details
Name: | all_DurationOfProvidedTransitionServices
Namespace Prefix: | all_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The operating income (loss), net of tax effect, as measured by the entity for segment reporting purposes. + References No definition available. + Details
Name: | all_OperatingIncomeLossAfterTax
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of liability for future policy benefit, before reinsurance, attributable to disposal group held for sale or disposed of. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-3 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483475/205-20-45-11 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483475/205-20-45-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5B -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483499/205-20-50-5B + Details
Name: | us-gaap_DisposalGroupIncludingDiscontinuedOperationLiabilityForFuturePolicyBenefitBeforeReinsurance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482130/360-10-45-5 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476148/220-40-50-21 + Details
Name: | us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3A -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-3A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-3A + Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-12 + Details
Name: | us-gaap_ProceedsFromDivestitureOfBusinesses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=all_AmericanHeritageLifeInsuranceCompanyAndAmericanHeritageServiceCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=all_DirectGeneralLifeInsuranceCompanyNSMSalesCorporationAndTheAssociationBenefitsSolutionLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |