XML 75 R57.htm IDEA: XBRL DOCUMENT
v3.25.2

Investments - Schedule of Unrealized Net Capital Gains and Losses Included in AOCI (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Fair value |  |
Fixed income securities, at fair value | $ 54,435 | $ 52,747
Short-term investments | 9,640 | 4,537
Derivative instruments | 0 | 0
Gross Unrealized Gains |  |
Fixed income securities | 633 | 361
Short-term investments | 0 | 0
Derivative instruments | 0 | 0
Gross Unrealized Losses |  |
Fixed income securities | (581) | (1,230)
Short-term investments | (2) | (2)
Derivative instruments | (2) | (2)
Unrealized net gains (losses) |  |
Fixed income securities | 52 | (869)
Short-term investments | (2) | (2)
Derivative instruments | (2) | (2)
Investments classified as held for sale | 1 | (110)
Unrealized net capital gains and losses, pre-tax | 49 | (983)
Amounts recognized for: |  |
Reclassification of noncontrolling interest | 0 | 3
Deferred income taxes | (13) | 209
Unrealized net capital gains and losses, after-tax | $ 36 | $ (771)

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

X
- Definition Represents the unrealized gains included in accumulated other comprehensive income as of the balance sheet date, for the fixed income securities which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | all_AvailableForSaleFixedIncomeSecuritiesUnrealizedGainIncludedInOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of unrealized gains (losses) included in accumulated other comprehensive income on fixed income securities which are categorized neither as held-to-maturity nor trading securities, as a result of fair value exceeding (under) its amortized cost, as of the balance sheet date. + References No definition available. + Details
Name: | all_AvailableForSaleFixedIncomeSecuritiesUnrealizedGainLossIncludedInOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the unrealized losses included in accumulated other comprehensive income as of the balance sheet date, for the fixed income securities which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | all_AvailableForSaleFixedIncomeSecuritiesUnrealizedLossIncludedInOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Available For Sale Short-Term Investments, Unrealized Gain Included In Other Comprehensive Income + References No definition available. + Details
Name: | all_AvailableForSaleShortTermInvestmentsUnrealizedGainIncludedInOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Available For Sale Short-Term Investments, Unrealized Gain (Loss) Included In Other Comprehensive Income + References No definition available. + Details
Name: | all_AvailableForSaleShortTermInvestmentsUnrealizedGainLossIncludedInOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Available For Sale Short-Term Investments, Unrealized Loss Included In Other Comprehensive Income + References No definition available. + Details
Name: | all_AvailableForSaleShortTermInvestmentsUnrealizedLossIncludedInOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Accumulated adjustment to deferred income taxes related to unrealized capital gains and losses, as of the balance sheet date. + References No definition available. + Details
Name: | all_DeferredIncomeTaxesRecognizedInAccumulatedOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of unrealized gains included in accumulated other comprehensive income on derivative instruments, as of the balance sheet date. + References No definition available. + Details
Name: | all_DerivativeInstrumentsUnrealizedGainIncludedInOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of unrealized gains (losses) included in accumulated other comprehensive income on derivative instruments, as a result of fair value exceeding (under) its amortized cost, as of the balance sheet date. + References No definition available. + Details
Name: | all_DerivativeInstrumentsUnrealizedGainLossIncludedInOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of unrealized losses included in accumulated other comprehensive income on derivative instruments, as of the balance sheet date. + References No definition available. + Details
Name: | all_DerivativeInstrumentsUnrealizedLossIncludedInOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, for which an unrealized net gain or loss is included in accumulated other comprehensive income. + References No definition available. + Details
Name: | all_FairValueOfDerivativeInstrumentsWithUnrealizedNetCapitalGainLoss
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

X
- Definition Investment Held For Sale, Unrealized Gain (Loss) Included in Other Comprehensive Income + References No definition available. + Details
Name: | all_InvestmentHeldForSaleUnrealizedGainLossIncludedInOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reclassification Of Noncontrolling Interests, Recognized in Accumulated Other Comprehensive Income + References No definition available. + Details
Name: | all_ReclassificationOfNoncontrollingInterestsRecognizedInAccumulatedOtherComprehensiveIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of unrealized gain (loss) before taxes on all investment securities, which are included in accumulated other comprehensive income (loss), as a result of fair value exceeding (under) its cost, as of the balance sheet date. + References No definition available. + Details
Name: | all_TotalUnrealizedGainsLossesOnInvestmentsBeforeTaxes
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Amount, after tax, of accumulated unrealized 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14 + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(8)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_ShortTermInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant