3.24.0.1 html 3780 1166 1 true 533 0 false 14 false false R1.htm 0000001 - Document - Cover Page Sheet http://www.aigcorporate.com/role/CoverPage Cover Page Cover 1 false false R2.htm 0000002 - Document - Audit Information Sheet http://www.aigcorporate.com/role/AuditInformation Audit Information Cover 2 false false R3.htm 0000003 - Statement - Consolidated Balance Sheets Sheet http://www.aigcorporate.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Statements 3 false false R4.htm 0000004 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.aigcorporate.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 4 false false R5.htm 0000005 - Statement - Consolidated Statements of Income (Loss) Sheet http://www.aigcorporate.com/role/ConsolidatedStatementsofIncomeLoss Consolidated Statements of Income (Loss) Statements 5 false false R6.htm 0000006 - Statement - Consolidated Statements of Income (Loss) (Parenthetical) Sheet http://www.aigcorporate.com/role/ConsolidatedStatementsofIncomeLossParenthetical Consolidated Statements of Income (Loss) (Parenthetical) Statements 6 false false R7.htm 0000007 - Statement - Consolidated Statements of Comprehensive Income (Loss) Sheet http://www.aigcorporate.com/role/ConsolidatedStatementsofComprehensiveIncomeLoss Consolidated Statements of Comprehensive Income (Loss) Statements 7 false false R8.htm 0000008 - Statement - Consolidated Statements of Equity Sheet http://www.aigcorporate.com/role/ConsolidatedStatementsofEquity Consolidated Statements of Equity Statements 8 false false R9.htm 0000009 - Statement - Consolidated Statements of Equity (Parenthetical) Sheet http://www.aigcorporate.com/role/ConsolidatedStatementsofEquityParenthetical Consolidated Statements of Equity (Parenthetical) Statements 9 false false R10.htm 0000010 - Statement - Consolidated Statements of Cash Flows Sheet http://www.aigcorporate.com/role/ConsolidatedStatementsofCashFlows Consolidated Statements of Cash Flows Statements 10 false false R11.htm 0000011 - Disclosure - Basis of Presentation Sheet http://www.aigcorporate.com/role/BasisofPresentation Basis of Presentation Notes 11 false false R12.htm 0000012 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.aigcorporate.com/role/SummaryofSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 12 false false R13.htm 0000013 - Disclosure - Segment Information Sheet http://www.aigcorporate.com/role/SegmentInformation Segment Information Notes 13 false false R14.htm 0000014 - Disclosure - Held-For-Sale Classification Sheet http://www.aigcorporate.com/role/HeldForSaleClassification Held-For-Sale Classification Notes 14 false false R15.htm 0000015 - Disclosure - Fair Value Measurements Sheet http://www.aigcorporate.com/role/FairValueMeasurements Fair Value Measurements Notes 15 false false R16.htm 0000016 - Disclosure - Investments Sheet http://www.aigcorporate.com/role/Investments Investments Notes 16 false false R17.htm 0000017 - Disclosure - Lending Activities Sheet http://www.aigcorporate.com/role/LendingActivities Lending Activities Notes 17 false false R18.htm 0000018 - Disclosure - Reinsurance Sheet http://www.aigcorporate.com/role/Reinsurance Reinsurance Notes 18 false false R19.htm 0000019 - Disclosure - Deferred Policy Acquisition Costs Sheet http://www.aigcorporate.com/role/DeferredPolicyAcquisitionCosts Deferred Policy Acquisition Costs Notes 19 false false R20.htm 0000020 - Disclosure - Variable Interest Entities Sheet http://www.aigcorporate.com/role/VariableInterestEntities Variable Interest Entities Notes 20 false false R21.htm 0000021 - Disclosure - Derivatives and Hedge Accounting Sheet http://www.aigcorporate.com/role/DerivativesandHedgeAccounting Derivatives and Hedge Accounting Notes 21 false false R22.htm 0000022 - Disclosure - Goodwill and Other Intangible Assets Sheet http://www.aigcorporate.com/role/GoodwillandOtherIntangibleAssets Goodwill and Other Intangible Assets Notes 22 false false R23.htm 0000023 - Disclosure - Insurance Liabilities Sheet http://www.aigcorporate.com/role/InsuranceLiabilities Insurance Liabilities Notes 23 false false R24.htm 0000024 - Disclosure - Market Risk Benefits Sheet http://www.aigcorporate.com/role/MarketRiskBenefits Market Risk Benefits Notes 24 false false R25.htm 0000025 - Disclosure - Separate Account Assets and Liabilities Sheet http://www.aigcorporate.com/role/SeparateAccountAssetsandLiabilities Separate Account Assets and Liabilities Notes 25 false false R26.htm 0000026 - Disclosure - Debt Sheet http://www.aigcorporate.com/role/Debt Debt Notes 26 false false R27.htm 0000027 - Disclosure - Contingencies, Commitments and Guarantees Sheet http://www.aigcorporate.com/role/ContingenciesCommitmentsandGuarantees Contingencies, Commitments and Guarantees Notes 27 false false R28.htm 0000028 - Disclosure - Equity Sheet http://www.aigcorporate.com/role/Equity Equity Notes 28 false false R29.htm 0000029 - Disclosure - Earnings Per Common Share (EPS) Sheet http://www.aigcorporate.com/role/EarningsPerCommonShareEPS Earnings Per Common Share (EPS) Notes 29 false false R30.htm 0000030 - Disclosure - Statutory Financial Data and Restrictions Sheet http://www.aigcorporate.com/role/StatutoryFinancialDataandRestrictions Statutory Financial Data and Restrictions Notes 30 false false R31.htm 0000031 - Disclosure - Share-Based Compensation Plans Sheet http://www.aigcorporate.com/role/ShareBasedCompensationPlans Share-Based Compensation Plans Notes 31 false false R32.htm 0000032 - Disclosure - Employee Benefits Sheet http://www.aigcorporate.com/role/EmployeeBenefits Employee Benefits Notes 32 false false R33.htm 0000033 - Disclosure - Income Taxes Sheet http://www.aigcorporate.com/role/IncomeTaxes Income Taxes Notes 33 false false R34.htm 0000034 - Disclosure - Schedule I Sheet http://www.aigcorporate.com/role/ScheduleI Schedule I Notes 34 false false R35.htm 0000035 - Disclosure - Schedule II Sheet http://www.aigcorporate.com/role/ScheduleII Schedule II Notes 35 false false R36.htm 0000036 - Disclosure - Schedule III Sheet http://www.aigcorporate.com/role/ScheduleIII Schedule III Notes 36 false false R37.htm 0000037 - Disclosure - Schedule IV Sheet http://www.aigcorporate.com/role/ScheduleIV Schedule IV Notes 37 false false R38.htm 0000038 - Disclosure - Schedule V Sheet http://www.aigcorporate.com/role/ScheduleV Schedule V Notes 38 false false R39.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 39 false false R40.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 40 false false R41.htm 9954471 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.aigcorporate.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.aigcorporate.com/role/SummaryofSignificantAccountingPolicies 41 false false R42.htm 9954472 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://www.aigcorporate.com/role/SummaryofSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://www.aigcorporate.com/role/SummaryofSignificantAccountingPolicies 42 false false R43.htm 9954473 - Disclosure - Segment Information (Tables) Sheet http://www.aigcorporate.com/role/SegmentInformationTables Segment Information (Tables) Tables http://www.aigcorporate.com/role/SegmentInformation 43 false false R44.htm 9954474 - Disclosure - Held-For-Sale Classification (Tables) Sheet http://www.aigcorporate.com/role/HeldForSaleClassificationTables Held-For-Sale Classification (Tables) Tables http://www.aigcorporate.com/role/HeldForSaleClassification 44 false false R45.htm 9954475 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.aigcorporate.com/role/FairValueMeasurements 45 false false R46.htm 9954476 - Disclosure - Investments (Tables) Sheet http://www.aigcorporate.com/role/InvestmentsTables Investments (Tables) Tables http://www.aigcorporate.com/role/Investments 46 false false R47.htm 9954477 - Disclosure - Lending Activities (Tables) Sheet http://www.aigcorporate.com/role/LendingActivitiesTables Lending Activities (Tables) Tables http://www.aigcorporate.com/role/LendingActivities 47 false false R48.htm 9954478 - Disclosure - Reinsurance (Tables) Sheet http://www.aigcorporate.com/role/ReinsuranceTables Reinsurance (Tables) Tables http://www.aigcorporate.com/role/Reinsurance 48 false false R49.htm 9954479 - Disclosure - Deferred Policy Acquisition Costs (Tables) Sheet http://www.aigcorporate.com/role/DeferredPolicyAcquisitionCostsTables Deferred Policy Acquisition Costs (Tables) Tables http://www.aigcorporate.com/role/DeferredPolicyAcquisitionCosts 49 false false R50.htm 9954480 - Disclosure - Variable Interest Entities (Tables) Sheet http://www.aigcorporate.com/role/VariableInterestEntitiesTables Variable Interest Entities (Tables) Tables http://www.aigcorporate.com/role/VariableInterestEntities 50 false false R51.htm 9954481 - Disclosure - Derivatives and Hedge Accounting (Tables) Sheet http://www.aigcorporate.com/role/DerivativesandHedgeAccountingTables Derivatives and Hedge Accounting (Tables) Tables http://www.aigcorporate.com/role/DerivativesandHedgeAccounting 51 false false R52.htm 9954482 - Disclosure - Goodwill and Other Intangible Assets (Tables) Sheet http://www.aigcorporate.com/role/GoodwillandOtherIntangibleAssetsTables Goodwill and Other Intangible Assets (Tables) Tables http://www.aigcorporate.com/role/GoodwillandOtherIntangibleAssets 52 false false R53.htm 9954483 - Disclosure - Insurance Liabilities (Tables) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesTables Insurance Liabilities (Tables) Tables http://www.aigcorporate.com/role/InsuranceLiabilities 53 false false R54.htm 9954484 - Disclosure - Market Risk Benefits (Tables) Sheet http://www.aigcorporate.com/role/MarketRiskBenefitsTables Market Risk Benefits (Tables) Tables http://www.aigcorporate.com/role/MarketRiskBenefits 54 false false R55.htm 9954485 - Disclosure - Separate Account Assets and Liabilities (Tables) Sheet http://www.aigcorporate.com/role/SeparateAccountAssetsandLiabilitiesTables Separate Account Assets and Liabilities (Tables) Tables http://www.aigcorporate.com/role/SeparateAccountAssetsandLiabilities 55 false false R56.htm 9954486 - Disclosure - Debt (Tables) Sheet http://www.aigcorporate.com/role/DebtTables Debt (Tables) Tables http://www.aigcorporate.com/role/Debt 56 false false R57.htm 9954487 - Disclosure - Commitment and Contingencies (Tables) Sheet http://www.aigcorporate.com/role/CommitmentandContingenciesTables Commitment and Contingencies (Tables) Tables 57 false false R58.htm 9954488 - Disclosure - Equity (Tables) Sheet http://www.aigcorporate.com/role/EquityTables Equity (Tables) Tables http://www.aigcorporate.com/role/Equity 58 false false R59.htm 9954489 - Disclosure - Earnings Per Common Share (EPS) (Tables) Sheet http://www.aigcorporate.com/role/EarningsPerCommonShareEPSTables Earnings Per Common Share (EPS) (Tables) Tables http://www.aigcorporate.com/role/EarningsPerCommonShareEPS 59 false false R60.htm 9954490 - Disclosure - Statutory Financial Data and Restrictions (Tables) Sheet http://www.aigcorporate.com/role/StatutoryFinancialDataandRestrictionsTables Statutory Financial Data and Restrictions (Tables) Tables http://www.aigcorporate.com/role/StatutoryFinancialDataandRestrictions 60 false false R61.htm 9954491 - Disclosure - Share-Based Compensation Plans (Tables) Sheet http://www.aigcorporate.com/role/ShareBasedCompensationPlansTables Share-Based Compensation Plans (Tables) Tables http://www.aigcorporate.com/role/ShareBasedCompensationPlans 61 false false R62.htm 9954492 - Disclosure - Employee Benefits (Tables) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsTables Employee Benefits (Tables) Tables http://www.aigcorporate.com/role/EmployeeBenefits 62 false false R63.htm 9954493 - Disclosure - Income Taxes (Tables) Sheet http://www.aigcorporate.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://www.aigcorporate.com/role/IncomeTaxes 63 false false R64.htm 9954494 - Disclosure - Basis of Presentation (Details) Sheet http://www.aigcorporate.com/role/BasisofPresentationDetails Basis of Presentation (Details) Details http://www.aigcorporate.com/role/BasisofPresentation 64 false false R65.htm 9954495 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details) Sheet http://www.aigcorporate.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails Summary of Significant Accounting Policies - Narrative (Details) Details 65 false false R66.htm 9954496 - Disclosure - Summary of Significant Accounting Policies - Adjusted Balance Sheet to Apply Adopted Guidance (Details) Sheet http://www.aigcorporate.com/role/SummaryofSignificantAccountingPoliciesAdjustedBalanceSheettoApplyAdoptedGuidanceDetails Summary of Significant Accounting Policies - Adjusted Balance Sheet to Apply Adopted Guidance (Details) Details 66 false false R67.htm 9954497 - Disclosure - Summary of Significant Accounting Policies - Adjusted Income Statement and Comprehensive Income to Apply Adopted Guidance (Details) Sheet http://www.aigcorporate.com/role/SummaryofSignificantAccountingPoliciesAdjustedIncomeStatementandComprehensiveIncometoApplyAdoptedGuidanceDetails Summary of Significant Accounting Policies - Adjusted Income Statement and Comprehensive Income to Apply Adopted Guidance (Details) Details 67 false false R68.htm 9954498 - Disclosure - Summary of Significant Accounting Policies - Adjusted Cash Flows to Apply Adopted Guidance (Details) Sheet http://www.aigcorporate.com/role/SummaryofSignificantAccountingPoliciesAdjustedCashFlowstoApplyAdoptedGuidanceDetails Summary of Significant Accounting Policies - Adjusted Cash Flows to Apply Adopted Guidance (Details) Details 68 false false R69.htm 9954499 - Disclosure - Segment Information - Narrative (Details) Sheet http://www.aigcorporate.com/role/SegmentInformationNarrativeDetails Segment Information - Narrative (Details) Details 69 false false R70.htm 9954500 - Disclosure - Segment Information - Schedule of continuing operations by operating segment (Details) Sheet http://www.aigcorporate.com/role/SegmentInformationScheduleofcontinuingoperationsbyoperatingsegmentDetails Segment Information - Schedule of continuing operations by operating segment (Details) Details 70 false false R71.htm 9954501 - Disclosure - Segment Information - Schedule of Identifiable assets (Details) Sheet http://www.aigcorporate.com/role/SegmentInformationScheduleofIdentifiableassetsDetails Segment Information - Schedule of Identifiable assets (Details) Details 71 false false R72.htm 9954502 - Disclosure - Segment Information - Schedule of Revenues and Other Assets by Geographic Area (Details) Sheet http://www.aigcorporate.com/role/SegmentInformationScheduleofRevenuesandOtherAssetsbyGeographicAreaDetails Segment Information - Schedule of Revenues and Other Assets by Geographic Area (Details) Details 72 false false R73.htm 9954504 - Disclosure - Held-For-Sale Classification - Schedule of Disposal Groups (Details) Sheet http://www.aigcorporate.com/role/HeldForSaleClassificationScheduleofDisposalGroupsDetails Held-For-Sale Classification - Schedule of Disposal Groups (Details) Details 73 false false R74.htm 9954505 - Disclosure - Fair Value Measurements - Assets and liabilities measured at fair value on a recurring basis (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsAssetsandliabilitiesmeasuredatfairvalueonarecurringbasisDetails Fair Value Measurements - Assets and liabilities measured at fair value on a recurring basis (Details) Details 74 false false R75.htm 9954506 - Disclosure - Fair Value Measurements - Changes in level 3 recurring fair value measurements, assets (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsChangesinlevel3recurringfairvaluemeasurementsassetsDetails Fair Value Measurements - Changes in level 3 recurring fair value measurements, assets (Details) Details 75 false false R76.htm 9954507 - Disclosure - Fair Value Measurements - Changes in level 3 recurring fair value measurements, liabilities (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsChangesinlevel3recurringfairvaluemeasurementsliabilitiesDetails Fair Value Measurements - Changes in level 3 recurring fair value measurements, liabilities (Details) Details 76 false false R77.htm 9954508 - Disclosure - Fair Value Measurements - Net realized and unrealized gains and losses included in income related to Level 3 assets and liabilities (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsNetrealizedandunrealizedgainsandlossesincludedinincomerelatedtoLevel3assetsandliabilitiesDetails Fair Value Measurements - Net realized and unrealized gains and losses included in income related to Level 3 assets and liabilities (Details) Details 77 false false R78.htm 9954509 - Disclosure - Fair Value Measurements - Gross components of purchases, sales, issuances and settlements (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsGrosscomponentsofpurchasessalesissuancesandsettlementsDetails Fair Value Measurements - Gross components of purchases, sales, issuances and settlements (Details) Details 78 false false R79.htm 9954510 - Disclosure - Fair Value Measurements - Quantitative Information about Level 3 Fair Value Measurements (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsQuantitativeInformationaboutLevel3FairValueMeasurementsDetails Fair Value Measurements - Quantitative Information about Level 3 Fair Value Measurements (Details) Details 79 false false R80.htm 9954511 - Disclosure - Fair Value Measurements - Investments in certain other invested assets (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsInvestmentsincertainotherinvestedassetsDetails Fair Value Measurements - Investments in certain other invested assets (Details) Details 80 false false R81.htm 9954512 - Disclosure - Fair Value Measurements - Gains or losses recorded related to fair value option (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsGainsorlossesrecordedrelatedtofairvalueoptionDetails Fair Value Measurements - Gains or losses recorded related to fair value option (Details) Details 81 false false R82.htm 9954513 - Disclosure - Fair Value Measurements - Difference between fair values fair value option (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsDifferencebetweenfairvaluesfairvalueoptionDetails Fair Value Measurements - Difference between fair values fair value option (Details) Details 82 false false R83.htm 9954514 - Disclosure - Fair Value Measurements - Assets measured at fair value on a non-recurring basis and related impairment charges (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsAssetsmeasuredatfairvalueonanonrecurringbasisandrelatedimpairmentchargesDetails Fair Value Measurements - Assets measured at fair value on a non-recurring basis and related impairment charges (Details) Details 83 false false R84.htm 9954515 - Disclosure - Fair Value Measurements - Carrying values and estimated fair values of our financial instruments not measured at fair value (Details) Sheet http://www.aigcorporate.com/role/FairValueMeasurementsCarryingvaluesandestimatedfairvaluesofourfinancialinstrumentsnotmeasuredatfairvalueDetails Fair Value Measurements - Carrying values and estimated fair values of our financial instruments not measured at fair value (Details) Details 84 false false R85.htm 9954516 - Disclosure - Investments - Amortized cost or cost and fair value of available for sale securities (Details) Sheet http://www.aigcorporate.com/role/InvestmentsAmortizedcostorcostandfairvalueofavailableforsalesecuritiesDetails Investments - Amortized cost or cost and fair value of available for sale securities (Details) Details 85 false false R86.htm 9954517 - Disclosure - Investments - Securities available for sale in a loss position (Details) Sheet http://www.aigcorporate.com/role/InvestmentsSecuritiesavailableforsaleinalosspositionDetails Investments - Securities available for sale in a loss position (Details) Details 86 false false R87.htm 9954518 - Disclosure - Investments - Amortized cost and fair value of fixed maturity securities available for sale by contractual maturity (Details) Sheet http://www.aigcorporate.com/role/InvestmentsAmortizedcostandfairvalueoffixedmaturitysecuritiesavailableforsalebycontractualmaturityDetails Investments - Amortized cost and fair value of fixed maturity securities available for sale by contractual maturity (Details) Details 87 false false R88.htm 9954519 - Disclosure - Investments - Gross realized gains and gross realized losses from sales or maturities of available for sale securities (Details) Sheet http://www.aigcorporate.com/role/InvestmentsGrossrealizedgainsandgrossrealizedlossesfromsalesormaturitiesofavailableforsalesecuritiesDetails Investments - Gross realized gains and gross realized losses from sales or maturities of available for sale securities (Details) Details 88 false false R89.htm 9954520 - Disclosure - Investments - Value of other securities measured at fair value based on election of the fair value option (Details) Sheet http://www.aigcorporate.com/role/InvestmentsValueofothersecuritiesmeasuredatfairvaluebasedonelectionofthefairvalueoptionDetails Investments - Value of other securities measured at fair value based on election of the fair value option (Details) Details 89 false false R90.htm 9954521 - Disclosure - Investments - Carrying amounts of other invested assets (Details) Sheet http://www.aigcorporate.com/role/InvestmentsCarryingamountsofotherinvestedassetsDetails Investments - Carrying amounts of other invested assets (Details) Details 90 false false R91.htm 9954522 - Disclosure - Investments - Other Invested Assets ??? Equity Method Investments (Details) Sheet http://www.aigcorporate.com/role/InvestmentsOtherInvestedAssetsEquityMethodInvestmentsDetails Investments - Other Invested Assets ??? Equity Method Investments (Details) Details 91 false false R92.htm 9954523 - Disclosure - Investments - Components of net investment income (Details) Sheet http://www.aigcorporate.com/role/InvestmentsComponentsofnetinvestmentincomeDetails Investments - Components of net investment income (Details) Details 92 false false R93.htm 9954524 - Disclosure - Investments - Components of net realized gains (losses) (Details) Sheet http://www.aigcorporate.com/role/InvestmentsComponentsofnetrealizedgainslossesDetails Investments - Components of net realized gains (losses) (Details) Details 93 false false R94.htm 9954525 - Disclosure - Investments - Schedule of changes in unrealized appreciation (depreciation) of available for sale securities and other investments (Details) Sheet http://www.aigcorporate.com/role/InvestmentsScheduleofchangesinunrealizedappreciationdepreciationofavailableforsalesecuritiesandotherinvestmentsDetails Investments - Schedule of changes in unrealized appreciation (depreciation) of available for sale securities and other investments (Details) Details 94 false false R95.htm 9954526 - Disclosure - Investments - Rollforward of changes in allowance for credit losses on available for sale fixed maturity securities by major investment category (Details) Sheet http://www.aigcorporate.com/role/InvestmentsRollforwardofchangesinallowanceforcreditlossesonavailableforsalefixedmaturitysecuritiesbymajorinvestmentcategoryDetails Investments - Rollforward of changes in allowance for credit losses on available for sale fixed maturity securities by major investment category (Details) Details 95 false false R96.htm 9954527 - Disclosure - Investments - Pledged investments (Details) Sheet http://www.aigcorporate.com/role/InvestmentsPledgedinvestmentsDetails Investments - Pledged investments (Details) Details 96 false false R97.htm 9954528 - Disclosure - Lending Activities - Composition of mortgages and other loans receivable (Details) Sheet http://www.aigcorporate.com/role/LendingActivitiesCompositionofmortgagesandotherloansreceivableDetails Lending Activities - Composition of mortgages and other loans receivable (Details) Details 97 false false R98.htm 9954529 - Disclosure - Lending Activities - Credit quality of commercial mortgages (Details) Sheet http://www.aigcorporate.com/role/LendingActivitiesCreditqualityofcommercialmortgagesDetails Lending Activities - Credit quality of commercial mortgages (Details) Details 98 false false R99.htm 9954530 - Disclosure - Lending Activities - Credit quality performance indicators for commercial mortgages (Details) Sheet http://www.aigcorporate.com/role/LendingActivitiesCreditqualityperformanceindicatorsforcommercialmortgagesDetails Lending Activities - Credit quality performance indicators for commercial mortgages (Details) Details 99 false false R100.htm 9954531 - Disclosure - Lending Activities - Credit quality of residential mortgages (Details) Sheet http://www.aigcorporate.com/role/LendingActivitiesCreditqualityofresidentialmortgagesDetails Lending Activities - Credit quality of residential mortgages (Details) Details 100 false false R101.htm 9954532 - Disclosure - Lending Activities - Rollforward of the changes in the allowance for credit losses on Mortgage and other loans receivable (Details) Sheet http://www.aigcorporate.com/role/LendingActivitiesRollforwardofthechangesintheallowanceforcreditlossesonMortgageandotherloansreceivableDetails Lending Activities - Rollforward of the changes in the allowance for credit losses on Mortgage and other loans receivable (Details) Details 101 false false R102.htm 9954533 - Disclosure - Lending Activities - Loan Modifications (Details) Sheet http://www.aigcorporate.com/role/LendingActivitiesLoanModificationsDetails Lending Activities - Loan Modifications (Details) Details 102 false false R103.htm 9954534 - Disclosure - Reinsurance - Supplemental information for loss and benefit reserves, gross and net of ceded reinsurance (Details) Sheet http://www.aigcorporate.com/role/ReinsuranceSupplementalinformationforlossandbenefitreservesgrossandnetofcededreinsuranceDetails Reinsurance - Supplemental information for loss and benefit reserves, gross and net of ceded reinsurance (Details) Details 103 false false R104.htm 9954535 - Disclosure - Reinsurance - Schedule of premiums written, earned and policy fees (Details) Sheet http://www.aigcorporate.com/role/ReinsuranceScheduleofpremiumswrittenearnedandpolicyfeesDetails Reinsurance - Schedule of premiums written, earned and policy fees (Details) Details 104 false false R105.htm 9954536 - Disclosure - Reinsurance - Summary of long-term insurance (Details) Sheet http://www.aigcorporate.com/role/ReinsuranceSummaryoflongterminsuranceDetails Reinsurance - Summary of long-term insurance (Details) Details 105 false false R106.htm 9954537 - Disclosure - Reinsurance - Rollforward of the reinsurable allowance for credit losses before adoption (Details) Sheet http://www.aigcorporate.com/role/ReinsuranceRollforwardofthereinsurableallowanceforcreditlossesbeforeadoptionDetails Reinsurance - Rollforward of the reinsurable allowance for credit losses before adoption (Details) Details 106 false false R107.htm 9954538 - Disclosure - Reinsurance - Narrative (Details) Sheet http://www.aigcorporate.com/role/ReinsuranceNarrativeDetails Reinsurance - Narrative (Details) Details 107 false false R108.htm 9954539 - Disclosure - Reinsurance - Summary of the composition of pool of assets (Details) Sheet http://www.aigcorporate.com/role/ReinsuranceSummaryofthecompositionofpoolofassetsDetails Reinsurance - Summary of the composition of pool of assets (Details) Details 108 false false R109.htm 9954540 - Disclosure - Reinsurance - Summary of the impact of funds withheld (Details) Sheet http://www.aigcorporate.com/role/ReinsuranceSummaryoftheimpactoffundswithheldDetails Reinsurance - Summary of the impact of funds withheld (Details) Details 109 false false R110.htm 9954541 - Disclosure - Reinsurance - Rollforward of the reinsurance recoverable allowance for credit losses (Details) Sheet http://www.aigcorporate.com/role/ReinsuranceRollforwardofthereinsurancerecoverableallowanceforcreditlossesDetails Reinsurance - Rollforward of the reinsurance recoverable allowance for credit losses (Details) Details 110 false false R111.htm 9954542 - Disclosure - Deferred Policy Acquisition Costs - Rollforward of DAC and DSI Adoption Adjustments (Details) Sheet http://www.aigcorporate.com/role/DeferredPolicyAcquisitionCostsRollforwardofDACandDSIAdoptionAdjustmentsDetails Deferred Policy Acquisition Costs - Rollforward of DAC and DSI Adoption Adjustments (Details) Details 111 false false R112.htm 9954543 - Disclosure - Deferred Policy Acquisition Costs - Rollforward of DAC (Details) Sheet http://www.aigcorporate.com/role/DeferredPolicyAcquisitionCostsRollforwardofDACDetails Deferred Policy Acquisition Costs - Rollforward of DAC (Details) Details 112 false false R113.htm 9954544 - Disclosure - Deferred Policy Acquisition Costs - Rollforward of DSI (Details) Sheet http://www.aigcorporate.com/role/DeferredPolicyAcquisitionCostsRollforwardofDSIDetails Deferred Policy Acquisition Costs - Rollforward of DSI (Details) Details 113 false false R114.htm 9954545 - Disclosure - Variable Interest Entities - Consolidated VIEs (Details) Sheet http://www.aigcorporate.com/role/VariableInterestEntitiesConsolidatedVIEsDetails Variable Interest Entities - Consolidated VIEs (Details) Details 114 false false R115.htm 9954546 - Disclosure - Variable Interest Entities - Unconsolidated VIEs (Details) Sheet http://www.aigcorporate.com/role/VariableInterestEntitiesUnconsolidatedVIEsDetails Variable Interest Entities - Unconsolidated VIEs (Details) Details 115 false false R116.htm 9954547 - Disclosure - Variable Interest Entities - Real Estate and Investments Entities (Details) Sheet http://www.aigcorporate.com/role/VariableInterestEntitiesRealEstateandInvestmentsEntitiesDetails Variable Interest Entities - Real Estate and Investments Entities (Details) Details 116 false false R117.htm 9954548 - Disclosure - Derivatives and Hedge Accounting - Notional amounts and fair values of derivative instruments (Details) Sheet http://www.aigcorporate.com/role/DerivativesandHedgeAccountingNotionalamountsandfairvaluesofderivativeinstrumentsDetails Derivatives and Hedge Accounting - Notional amounts and fair values of derivative instruments (Details) Details 117 false false R118.htm 9954549 - Disclosure - Derivatives and Hedge Accounting - Narrative (Details) Sheet http://www.aigcorporate.com/role/DerivativesandHedgeAccountingNarrativeDetails Derivatives and Hedge Accounting - Narrative (Details) Details 118 false false R119.htm 9954550 - Disclosure - Derivatives and Hedge Accounting - Fair value hedging relationships (Details) Sheet http://www.aigcorporate.com/role/DerivativesandHedgeAccountingFairvaluehedgingrelationshipsDetails Derivatives and Hedge Accounting - Fair value hedging relationships (Details) Details 119 false false R120.htm 9954551 - Disclosure - Derivatives and Hedge Accounting - Derivatives not designated as hedging instruments (Details) Sheet http://www.aigcorporate.com/role/DerivativesandHedgeAccountingDerivativesnotdesignatedashedginginstrumentsDetails Derivatives and Hedge Accounting - Derivatives not designated as hedging instruments (Details) Details 120 false false R121.htm 9954552 - Disclosure - Goodwill and Other Intangible Assets - Goodwill (Details) Sheet http://www.aigcorporate.com/role/GoodwillandOtherIntangibleAssetsGoodwillDetails Goodwill and Other Intangible Assets - Goodwill (Details) Details 121 false false R122.htm 9954553 - Disclosure - Goodwill and Other Intangible Assets - Narrative (Details) Sheet http://www.aigcorporate.com/role/GoodwillandOtherIntangibleAssetsNarrativeDetails Goodwill and Other Intangible Assets - Narrative (Details) Details 122 false false R123.htm 9954554 - Disclosure - Insurance Liabilities - Narrative (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesNarrativeDetails Insurance Liabilities - Narrative (Details) Details 123 false false R124.htm 9954555 - Disclosure - Insurance Liabilities - Liability for unpaid losses and loss adjustment expenses (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesLiabilityforunpaidlossesandlossadjustmentexpensesDetails Insurance Liabilities - Liability for unpaid losses and loss adjustment expenses (Details) Details 124 false false R125.htm 9954556 - Disclosure - Insurance Liabilities - Reconciliation of the Net Incurred and Paid Claims Development (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesReconciliationoftheNetIncurredandPaidClaimsDevelopmentDetails Insurance Liabilities - Reconciliation of the Net Incurred and Paid Claims Development (Details) Details 125 false false R126.htm 9954557 - Disclosure - Insurance Liabilities - Undiscounted, Incurred and Paid Losses and Allocated Loss Adjustment Expenses (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesUndiscountedIncurredandPaidLossesandAllocatedLossAdjustmentExpensesDetails Insurance Liabilities - Undiscounted, Incurred and Paid Losses and Allocated Loss Adjustment Expenses (Details) Details 126 false false R127.htm 9954558 - Disclosure - Insurance Liabilities - Reconciliation of change in net ultimates to prior year development (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesReconciliationofchangeinnetultimatestoprioryeardevelopmentDetails Insurance Liabilities - Reconciliation of change in net ultimates to prior year development (Details) Details 127 false false R128.htm 9954559 - Disclosure - Insurance Liabilities - Discounting of reserves (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesDiscountingofreservesDetails Insurance Liabilities - Discounting of reserves (Details) Details 128 false false R129.htm 9954560 - Disclosure - Insurance Liabilities - Net loss reserve discount benefit (charge) (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesNetlossreservediscountbenefitchargeDetails Insurance Liabilities - Net loss reserve discount benefit (charge) (Details) Details 129 false false R130.htm 9954561 - Disclosure - Insurance Liabilities - Future Policy Benefits (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesFuturePolicyBenefitsDetails Insurance Liabilities - Future Policy Benefits (Details) Details 130 false false R131.htm 9954562 - Disclosure - Insurance Liabilities - Balances of changes in liability for future policy benefits (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesBalancesofchangesinliabilityforfuturepolicybenefitsDetails Insurance Liabilities - Balances of changes in liability for future policy benefits (Details) Details 131 false false R132.htm 9954563 - Disclosure - Insurance Liabilities - Expected future benefits, expenses, and gross premiums (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesExpectedfuturebenefitsexpensesandgrosspremiumsDetails Insurance Liabilities - Expected future benefits, expenses, and gross premiums (Details) Details 132 false false R133.htm 9954564 - Disclosure - Insurance Liabilities - Income statement information (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesIncomestatementinformationDetails Insurance Liabilities - Income statement information (Details) Details 133 false false R134.htm 9954565 - Disclosure - Insurance Liabilities - Weighted-average interest rates (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesWeightedaverageinterestratesDetails Insurance Liabilities - Weighted-average interest rates (Details) Details 134 false false R135.htm 9954566 - Disclosure - Insurance Liabilities - Schedule of liabilities by product (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesScheduleofliabilitiesbyproductDetails Insurance Liabilities - Schedule of liabilities by product (Details) Details 135 false false R136.htm 9954567 - Disclosure - Insurance Liabilities - Summary of separate accounts (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesSummaryofseparateaccountsDetails Insurance Liabilities - Summary of separate accounts (Details) Details 136 false false R137.htm 9954568 - Disclosure - Insurance Liabilities - Adjustments to Policyholder Contract Deposits (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesAdjustmentstoPolicyholderContractDepositsDetails Insurance Liabilities - Adjustments to Policyholder Contract Deposits (Details) Details 137 false false R138.htm 9954569 - Disclosure - Insurance Liabilities - Policyholder contract deposit (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesPolicyholdercontractdepositDetails Insurance Liabilities - Policyholder contract deposit (Details) Details 138 false false R139.htm 9954570 - Disclosure - Insurance Liabilities - Account balances by guaranteed minimum interest rates (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesAccountbalancesbyguaranteedminimuminterestratesDetails Insurance Liabilities - Account balances by guaranteed minimum interest rates (Details) Details 139 false false R140.htm 9954571 - Disclosure - Insurance Liabilities - Unearned revenue liability (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesUnearnedrevenueliabilityDetails Insurance Liabilities - Unearned revenue liability (Details) Details 140 false false R141.htm 9954572 - Disclosure - Insurance Liabilities - Funding Agreements (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesFundingAgreementsDetails Insurance Liabilities - Funding Agreements (Details) Details 141 false false R142.htm 9954573 - Disclosure - Insurance Liabilities - Schedule of policyholder contract deposits (Details) Sheet http://www.aigcorporate.com/role/InsuranceLiabilitiesScheduleofpolicyholdercontractdepositsDetails Insurance Liabilities - Schedule of policyholder contract deposits (Details) Details 142 false false R143.htm 9954574 - Disclosure - Market Risk Benefits - Balances and changes in market risk benefits (Details) Sheet http://www.aigcorporate.com/role/MarketRiskBenefitsBalancesandchangesinmarketriskbenefitsDetails Market Risk Benefits - Balances and changes in market risk benefits (Details) Details 143 false false R144.htm 9954575 - Disclosure - Market Risk Benefits - Rollforward of market risk benefits (Details) Sheet http://www.aigcorporate.com/role/MarketRiskBenefitsRollforwardofmarketriskbenefitsDetails Market Risk Benefits - Rollforward of market risk benefits (Details) Details 144 false false R145.htm 9954576 - Disclosure - Market Risk Benefits - Schedule of market risk benefits (Details) Sheet http://www.aigcorporate.com/role/MarketRiskBenefitsScheduleofmarketriskbenefitsDetails Market Risk Benefits - Schedule of market risk benefits (Details) Details 145 false false R146.htm 9954577 - Disclosure - Separate Account Assets and Liabilities - Separate account assets (Details) Sheet http://www.aigcorporate.com/role/SeparateAccountAssetsandLiabilitiesSeparateaccountassetsDetails Separate Account Assets and Liabilities - Separate account assets (Details) Details 146 false false R147.htm 9954578 - Disclosure - Separate Account Assets and Liabilities - Separate account liabilities (Details) Sheet http://www.aigcorporate.com/role/SeparateAccountAssetsandLiabilitiesSeparateaccountliabilitiesDetails Separate Account Assets and Liabilities - Separate account liabilities (Details) Details 147 false false R148.htm 9954579 - Disclosure - Debt - Schedule of Outstanding Debt (Details) Sheet http://www.aigcorporate.com/role/DebtScheduleofOutstandingDebtDetails Debt - Schedule of Outstanding Debt (Details) Details 148 false false R149.htm 9954580 - Disclosure - Debt - Maturity of Debt (Details) Sheet http://www.aigcorporate.com/role/DebtMaturityofDebtDetails Debt - Maturity of Debt (Details) Details 149 false false R150.htm 9954582 - Disclosure - Debt - Debt Issuance (Details) Sheet http://www.aigcorporate.com/role/DebtDebtIssuanceDetails Debt - Debt Issuance (Details) Details 150 false false R151.htm 9954583 - Disclosure - Debt - Debt Cash Tender Offers and Redemptions (Details) Sheet http://www.aigcorporate.com/role/DebtDebtCashTenderOffersandRedemptionsDetails Debt - Debt Cash Tender Offers and Redemptions (Details) Details 151 false false R152.htm 9954584 - Disclosure - Debt - Credit Facilities (Details) Sheet http://www.aigcorporate.com/role/DebtCreditFacilitiesDetails Debt - Credit Facilities (Details) Details 152 false false R153.htm 9954585 - Disclosure - Contingencies, Commitments and Guarantees (Details) Sheet http://www.aigcorporate.com/role/ContingenciesCommitmentsandGuaranteesDetails Contingencies, Commitments and Guarantees (Details) Details http://www.aigcorporate.com/role/ContingenciesCommitmentsandGuarantees 153 false false R154.htm 9954586 - Disclosure - Contingencies, Commitments and Guarantees - Lease Commitments (Details) Sheet http://www.aigcorporate.com/role/ContingenciesCommitmentsandGuaranteesLeaseCommitmentsDetails Contingencies, Commitments and Guarantees - Lease Commitments (Details) Details 154 false false R155.htm 9954587 - Disclosure - Contingencies, Commitments and Guarantees - Schedule of Future Undiscounted Cash Flows (Details) Sheet http://www.aigcorporate.com/role/ContingenciesCommitmentsandGuaranteesScheduleofFutureUndiscountedCashFlowsDetails Contingencies, Commitments and Guarantees - Schedule of Future Undiscounted Cash Flows (Details) Details 155 false false R156.htm 9954588 - Disclosure - Contingencies, Commitments and Guarantees - Other Commitments (Details) Sheet http://www.aigcorporate.com/role/ContingenciesCommitmentsandGuaranteesOtherCommitmentsDetails Contingencies, Commitments and Guarantees - Other Commitments (Details) Details 156 false false R157.htm 9954589 - Disclosure - Equity - Narrative (Details) Sheet http://www.aigcorporate.com/role/EquityNarrativeDetails Equity - Narrative (Details) Details 157 false false R158.htm 9954590 - Disclosure - Equity - Rollforward of common stock outstanding (Details) Sheet http://www.aigcorporate.com/role/EquityRollforwardofcommonstockoutstandingDetails Equity - Rollforward of common stock outstanding (Details) Details 158 false false R159.htm 9954591 - Disclosure - Equity - Schedule of accumulated other comprehensive income (loss) (Details) Sheet http://www.aigcorporate.com/role/EquityScheduleofaccumulatedothercomprehensiveincomelossDetails Equity - Schedule of accumulated other comprehensive income (loss) (Details) Details 159 false false R160.htm 9954592 - Disclosure - Equity - Schedule of other comprehensive income (loss) reclassification adjustments (Details) Sheet http://www.aigcorporate.com/role/EquityScheduleofothercomprehensiveincomelossreclassificationadjustmentsDetails Equity - Schedule of other comprehensive income (loss) reclassification adjustments (Details) Details 160 false false R161.htm 9954593 - Disclosure - Equity - Schedule of effect of the reclassification of significant items out of accumulated other comprehensive income on the respective line items in the Consolidated Statements of Income (Details) Sheet http://www.aigcorporate.com/role/EquityScheduleofeffectofthereclassificationofsignificantitemsoutofaccumulatedothercomprehensiveincomeontherespectivelineitemsintheConsolidatedStatementsofIncomeDetails Equity - Schedule of effect of the reclassification of significant items out of accumulated other comprehensive income on the respective line items in the Consolidated Statements of Income (Details) Details 161 false false R162.htm 9954594 - Disclosure - Equity - Schedule of noncontrolling interest (Details) Sheet http://www.aigcorporate.com/role/EquityScheduleofnoncontrollinginterestDetails Equity - Schedule of noncontrolling interest (Details) Details 162 false false R163.htm 9954595 - Disclosure - Earnings Per Common Share (EPS) (Details) Sheet http://www.aigcorporate.com/role/EarningsPerCommonShareEPSDetails Earnings Per Common Share (EPS) (Details) Details http://www.aigcorporate.com/role/EarningsPerCommonShareEPSTables 163 false false R164.htm 9954596 - Disclosure - Statutory Financial Data and Restrictions - Schedule of Statutory Financial Data and Restrictions (Details) Sheet http://www.aigcorporate.com/role/StatutoryFinancialDataandRestrictionsScheduleofStatutoryFinancialDataandRestrictionsDetails Statutory Financial Data and Restrictions - Schedule of Statutory Financial Data and Restrictions (Details) Details 164 false false R165.htm 9954597 - Disclosure - Statutory Financial Data and Restrictions - Narrative (Details) Sheet http://www.aigcorporate.com/role/StatutoryFinancialDataandRestrictionsNarrativeDetails Statutory Financial Data and Restrictions - Narrative (Details) Details 165 false false R166.htm 9954598 - Disclosure - Share-Based Compensation Plans - Schedule of share-based compensation expense recognized in Consolidated Statements of Income (Details) Sheet http://www.aigcorporate.com/role/ShareBasedCompensationPlansScheduleofsharebasedcompensationexpenserecognizedinConsolidatedStatementsofIncomeDetails Share-Based Compensation Plans - Schedule of share-based compensation expense recognized in Consolidated Statements of Income (Details) Details 166 false false R167.htm 9954599 - Disclosure - Share-Based Compensation Plans - Narrative (Details) Sheet http://www.aigcorporate.com/role/ShareBasedCompensationPlansNarrativeDetails Share-Based Compensation Plans - Narrative (Details) Details 167 false false R168.htm 9954600 - Disclosure - Share-Based Compensation Plans - Schedule of assumptions used to estimate the fair value of PSUs based on AIG's TSR (Details) Sheet http://www.aigcorporate.com/role/ShareBasedCompensationPlansScheduleofassumptionsusedtoestimatethefairvalueofPSUsbasedonAIGsTSRDetails Share-Based Compensation Plans - Schedule of assumptions used to estimate the fair value of PSUs based on AIG's TSR (Details) Details 168 false false R169.htm 9954601 - Disclosure - Share-Based Compensation Plans - Summary of outstanding share-settled LTI awards (Details) Sheet http://www.aigcorporate.com/role/ShareBasedCompensationPlansSummaryofoutstandingsharesettledLTIawardsDetails Share-Based Compensation Plans - Summary of outstanding share-settled LTI awards (Details) Details 169 false false R170.htm 9954602 - Disclosure - Share-Based Compensation Plans - Schedule of weighted-average assumptions (Details) Sheet http://www.aigcorporate.com/role/ShareBasedCompensationPlansScheduleofweightedaverageassumptionsDetails Share-Based Compensation Plans - Schedule of weighted-average assumptions (Details) Details 170 false false R171.htm 9954603 - Disclosure - Share-Based Compensation Plans - Schedule of stock option activity (Details) Sheet http://www.aigcorporate.com/role/ShareBasedCompensationPlansScheduleofstockoptionactivityDetails Share-Based Compensation Plans - Schedule of stock option activity (Details) Details 171 false false R172.htm 9954604 - Disclosure - Share-Based Compensation Plans - Summary of outstanding share-settled RSU grants (Details) Sheet http://www.aigcorporate.com/role/ShareBasedCompensationPlansSummaryofoutstandingsharesettledRSUgrantsDetails Share-Based Compensation Plans - Summary of outstanding share-settled RSU grants (Details) Details 172 false false R173.htm 9954605 - Disclosure - Employee Benefits - Narrative (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsNarrativeDetails Employee Benefits - Narrative (Details) Details 173 false false R174.htm 9954606 - Disclosure - Employee Benefits - Schedule of funded status of the plans reconciled to the amount reported in the balance sheets (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleoffundedstatusoftheplansreconciledtotheamountreportedinthebalancesheetsDetails Employee Benefits - Schedule of funded status of the plans reconciled to the amount reported in the balance sheets (Details) Details 174 false false R175.htm 9954607 - Disclosure - Employee Benefits - Schedule of accumulated benefit obligations (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleofaccumulatedbenefitobligationsDetails Employee Benefits - Schedule of accumulated benefit obligations (Details) Details 175 false false R176.htm 9954608 - Disclosure - Employee Benefits - Schedule of projected benefit obligation in excess of the plan assets and the accumulated benefit obligation in excess of the plan assets (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleofprojectedbenefitobligationinexcessoftheplanassetsandtheaccumulatedbenefitobligationinexcessoftheplanassetsDetails Employee Benefits - Schedule of projected benefit obligation in excess of the plan assets and the accumulated benefit obligation in excess of the plan assets (Details) Details 176 false false R177.htm 9954609 - Disclosure - Employee Benefits - Schedule of components of net periodic cost (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleofcomponentsofnetperiodiccostDetails Employee Benefits - Schedule of components of net periodic cost (Details) Details 177 false false R178.htm 9954610 - Disclosure - Employee Benefits - Schedule of weighted average assumptions used to determine the benefit obligations (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleofweightedaverageassumptionsusedtodeterminethebenefitobligationsDetails Employee Benefits - Schedule of weighted average assumptions used to determine the benefit obligations (Details) Details 178 false false R179.htm 9954611 - Disclosure - Employee Benefits - Schedule of assumed health care cost trend rates (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleofassumedhealthcarecosttrendratesDetails Employee Benefits - Schedule of assumed health care cost trend rates (Details) Details 179 false false R180.htm 9954612 - Disclosure - Employee Benefits - Schedule of weighted average assumptions used to determine the net periodic benefit costs (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleofweightedaverageassumptionsusedtodeterminethenetperiodicbenefitcostsDetails Employee Benefits - Schedule of weighted average assumptions used to determine the net periodic benefit costs (Details) Details 180 false false R181.htm 9954613 - Disclosure - Employee Benefits - Schedule of asset allocation percentage by major asset class and target allocation (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleofassetallocationpercentagebymajorassetclassandtargetallocationDetails Employee Benefits - Schedule of asset allocation percentage by major asset class and target allocation (Details) Details 181 false false R182.htm 9954614 - Disclosure - Employee Benefits - Schedule of plan assets based on the level within the fair value hierarchy in which the fair value measurement falls (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleofplanassetsbasedonthelevelwithinthefairvaluehierarchyinwhichthefairvaluemeasurementfallsDetails Employee Benefits - Schedule of plan assets based on the level within the fair value hierarchy in which the fair value measurement falls (Details) Details 182 false false R183.htm 9954615 - Disclosure - Employee Benefits - Schedule of changes in Level 3 plan assets measured at fair value (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleofchangesinLevel3planassetsmeasuredatfairvalueDetails Employee Benefits - Schedule of changes in Level 3 plan assets measured at fair value (Details) Details 183 false false R184.htm 9954616 - Disclosure - Employee Benefits - Schedule of expected future benefit payments, net of participants' contributions (Details) Sheet http://www.aigcorporate.com/role/EmployeeBenefitsScheduleofexpectedfuturebenefitpaymentsnetofparticipantscontributionsDetails Employee Benefits - Schedule of expected future benefit payments, net of participants' contributions (Details) Details 184 false false R185.htm 9954617 - Disclosure - Income Taxes (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.aigcorporate.com/role/IncomeTaxesTables 185 false false R186.htm 9954618 - Disclosure - Income Taxes - Basis of Presentation (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesBasisofPresentationDetails Income Taxes - Basis of Presentation (Details) Details 186 false false R187.htm 9954619 - Disclosure - Income Taxes - Schedule of income (loss) from continuing operations before income tax expense (benefit) by U.S. and foreign location (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesScheduleofincomelossfromcontinuingoperationsbeforeincometaxexpensebenefitbyUSandforeignlocationDetails Income Taxes - Schedule of income (loss) from continuing operations before income tax expense (benefit) by U.S. and foreign location (Details) Details 187 false false R188.htm 9954620 - Disclosure - Income Taxes - Schedule of income tax expense (benefit) attributable to pre-tax income (loss) from continuing operations (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesScheduleofincometaxexpensebenefitattributabletopretaxincomelossfromcontinuingoperationsDetails Income Taxes - Schedule of income tax expense (benefit) attributable to pre-tax income (loss) from continuing operations (Details) Details 188 false false R189.htm 9954621 - Disclosure - Income Taxes - Schedule of reconciliation between actual income tax (benefit) expense and statutory U.S. federal amount computed by applying the federal income tax rate (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesScheduleofreconciliationbetweenactualincometaxbenefitexpenseandstatutoryUSfederalamountcomputedbyapplyingthefederalincometaxrateDetails Income Taxes - Schedule of reconciliation between actual income tax (benefit) expense and statutory U.S. federal amount computed by applying the federal income tax rate (Details) Details 189 false false R190.htm 9954622 - Disclosure - Income Taxes - Schedule of components of the net deferred tax asset (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesScheduleofcomponentsofthenetdeferredtaxassetDetails Income Taxes - Schedule of components of the net deferred tax asset (Details) Details 190 false false R191.htm 9954623 - Disclosure - Income Taxes - Schedule of consolidated income tax group credits carryforwards (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesScheduleofconsolidatedincometaxgroupcreditscarryforwardsDetails Income Taxes - Schedule of consolidated income tax group credits carryforwards (Details) Details 191 false false R192.htm 9954624 - Disclosure - Income Taxes - Assessment of Deferred Tax Asset Valuation Allowance (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesAssessmentofDeferredTaxAssetValuationAllowanceDetails Income Taxes - Assessment of Deferred Tax Asset Valuation Allowance (Details) Details 192 false false R193.htm 9954625 - Disclosure - Income Taxes -Schedule of net deferred tax assets (liabilities) (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesScheduleofnetdeferredtaxassetsliabilitiesDetails Income Taxes -Schedule of net deferred tax assets (liabilities) (Details) Details 193 false false R194.htm 9954626 - Disclosure - Income Taxes - Schedule of reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesScheduleofreconciliationofthebeginningandendingbalancesofthetotalamountsofgrossunrecognizedtaxbenefitsDetails Income Taxes - Schedule of reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits (Details) Details 194 false false R195.htm 9954627 - Disclosure - Income Taxes - Deferred Tax Asset of U.S. Consolidated Federal Income Tax Group (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesDeferredTaxAssetofUSConsolidatedFederalIncomeTaxGroupDetails Income Taxes - Deferred Tax Asset of U.S. Consolidated Federal Income Tax Group (Details) Details 195 false false R196.htm 9954628 - Disclosure - Income Taxes - Schedule of tax years that remain subject to examination by major tax jurisdictions (Details) Sheet http://www.aigcorporate.com/role/IncomeTaxesScheduleoftaxyearsthatremainsubjecttoexaminationbymajortaxjurisdictionsDetails Income Taxes - Schedule of tax years that remain subject to examination by major tax jurisdictions (Details) Details 196 false false R197.htm 9954629 - Disclosure - Schedule I (Details) Sheet http://www.aigcorporate.com/role/ScheduleIDetails Schedule I (Details) Details http://www.aigcorporate.com/role/ScheduleI 197 false false R198.htm 9954630 - Disclosure - Schedule II - Balance Sheets (Details) Sheet http://www.aigcorporate.com/role/ScheduleIIBalanceSheetsDetails Schedule II - Balance Sheets (Details) Details 198 false false R199.htm 9954631 - Disclosure - Schedule II - Income Statement (Details) Sheet http://www.aigcorporate.com/role/ScheduleIIIncomeStatementDetails Schedule II - Income Statement (Details) Details 199 false false R200.htm 9954632 - Disclosure - Schedule II - Comprehensive Income (Details) Sheet http://www.aigcorporate.com/role/ScheduleIIComprehensiveIncomeDetails Schedule II - Comprehensive Income (Details) Details 200 false false R201.htm 9954633 - Disclosure - Schedule II - Cash Flow Statement (Details) Sheet http://www.aigcorporate.com/role/ScheduleIICashFlowStatementDetails Schedule II - Cash Flow Statement (Details) Details 201 false false R202.htm 9954634 - Disclosure - Schedule III (Details) Sheet http://www.aigcorporate.com/role/ScheduleIIIDetails Schedule III (Details) Details http://www.aigcorporate.com/role/ScheduleI 202 false false R203.htm 9954635 - Disclosure - Schedule IV (Details) Sheet http://www.aigcorporate.com/role/ScheduleIVDetails Schedule IV (Details) Details http://www.aigcorporate.com/role/ScheduleI 203 false false R204.htm 9954636 - Disclosure - Schedule V (Details) Sheet http://www.aigcorporate.com/role/ScheduleVDetails Schedule V (Details) Details http://www.aigcorporate.com/role/ScheduleI 204 false false All Reports Book All Reports aig-20231231.htm aig-20231231.xsd aig-20231231_cal.xml aig-20231231_def.xml aig-20231231_lab.xml aig-20231231_pre.xml aig-20231231_g1.gif aig-20231231_g2.gif aig-20231231_g3.gif aig-20231231_g4.gif aig-20231231_g5.gif aig-20231231_g6.gif aig-20231231_g7.gif aig-20231231_g8.jpg http://fasb.org/srt/2023 http://fasb.org/us-gaap/2023 http://xbrl.sec.gov/dei/2023 http://xbrl.sec.gov/ecd/2023 true true