ms-20230930false2023Q30000895421--12-31MORGAN STANLEYtruefalsehttp://fasb.org/us-gaap/2023#AssetPledgedAsCollateralMember00008954212023-01-012023-09-300000895421us-gaap:CommonClassAMember2023-01-012023-09-300000895421us-gaap:SeriesAPreferredStockMember2023-01-012023-09-300000895421us-gaap:SeriesEPreferredStockMember2023-01-012023-09-300000895421us-gaap:SeriesFPreferredStockMember2023-01-012023-09-300000895421ms:SeriesIPreferredStockMember2023-01-012023-09-300000895421ms:SeriesKPreferredStockMember2023-01-012023-09-300000895421ms:SeriesLPreferredStockMember2023-01-012023-09-300000895421ms:SeriesOPreferredStockMember2023-01-012023-09-300000895421ms:SeriesPPreferredStockMember2023-01-012023-09-300000895421ms:GlobalMediumTermNotesSeriesAFixedRateStepUpSeniorNotesDue2026ofMorganStanleyFinanceLLCMember2023-01-012023-09-300000895421ms:GlobalMediumTermNotesSeriesAFloatingRateNotesDue2029OfMorganStanleyFinanceLLCMember2023-01-012023-09-3000008954212023-10-31xbrli:shares00008954212023-07-012023-09-30iso4217:USD00008954212022-07-012022-09-3000008954212022-01-012022-09-30iso4217:USDxbrli:shares00008954212023-09-3000008954212022-12-310000895421us-gaap:PreferredStockMember2023-06-300000895421us-gaap:PreferredStockMember2022-06-300000895421us-gaap:PreferredStockMember2022-12-310000895421us-gaap:PreferredStockMember2021-12-310000895421us-gaap:PreferredStockMember2022-07-012022-09-300000895421us-gaap:PreferredStockMember2022-01-012022-09-300000895421us-gaap:PreferredStockMember2023-09-300000895421us-gaap:PreferredStockMember2022-09-300000895421us-gaap:CommonStockMember2023-09-300000895421us-gaap:CommonStockMember2023-06-300000895421us-gaap:CommonStockMember2022-09-300000895421us-gaap:CommonStockMember2022-06-300000895421us-gaap:CommonStockMember2022-12-310000895421us-gaap:CommonStockMember2021-12-310000895421us-gaap:AdditionalPaidInCapitalMember2023-06-300000895421us-gaap:AdditionalPaidInCapitalMember2022-06-300000895421us-gaap:AdditionalPaidInCapitalMember2022-12-310000895421us-gaap:AdditionalPaidInCapitalMember2021-12-310000895421us-gaap:AdditionalPaidInCapitalMember2023-07-012023-09-300000895421us-gaap:AdditionalPaidInCapitalMember2022-07-012022-09-300000895421us-gaap:AdditionalPaidInCapitalMember2023-01-012023-09-300000895421us-gaap:AdditionalPaidInCapitalMember2022-01-012022-09-300000895421us-gaap:AdditionalPaidInCapitalMember2023-09-300000895421us-gaap:AdditionalPaidInCapitalMember2022-09-300000895421us-gaap:RetainedEarningsMember2023-06-300000895421us-gaap:RetainedEarningsMember2022-06-300000895421us-gaap:RetainedEarningsMember2022-12-310000895421us-gaap:RetainedEarningsMember2021-12-310000895421us-gaap:RetainedEarningsMember2023-07-012023-09-300000895421us-gaap:RetainedEarningsMember2022-07-012022-09-300000895421us-gaap:RetainedEarningsMember2023-01-012023-09-300000895421us-gaap:RetainedEarningsMember2022-01-012022-09-300000895421us-gaap:RetainedEarningsMember2023-09-300000895421us-gaap:RetainedEarningsMember2022-09-300000895421us-gaap:TrustForBenefitOfEmployeesMember2023-06-300000895421us-gaap:TrustForBenefitOfEmployeesMember2022-06-300000895421us-gaap:TrustForBenefitOfEmployeesMember2022-12-310000895421us-gaap:TrustForBenefitOfEmployeesMember2021-12-310000895421us-gaap:TrustForBenefitOfEmployeesMember2023-07-012023-09-300000895421us-gaap:TrustForBenefitOfEmployeesMember2022-07-012022-09-300000895421us-gaap:TrustForBenefitOfEmployeesMember2023-01-012023-09-300000895421us-gaap:TrustForBenefitOfEmployeesMember2022-01-012022-09-300000895421us-gaap:TrustForBenefitOfEmployeesMember2023-09-300000895421us-gaap:TrustForBenefitOfEmployeesMember2022-09-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-06-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-06-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-12-310000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-07-012023-09-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-07-012022-09-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-09-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-01-012022-09-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-09-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-09-300000895421us-gaap:TreasuryStockCommonMember2023-06-300000895421us-gaap:TreasuryStockCommonMember2022-06-300000895421us-gaap:TreasuryStockCommonMember2022-12-310000895421us-gaap:TreasuryStockCommonMember2021-12-310000895421us-gaap:TreasuryStockCommonMember2023-07-012023-09-300000895421us-gaap:TreasuryStockCommonMember2022-07-012022-09-300000895421us-gaap:TreasuryStockCommonMember2023-01-012023-09-300000895421us-gaap:TreasuryStockCommonMember2022-01-012022-09-300000895421us-gaap:TreasuryStockCommonMember2023-09-300000895421us-gaap:TreasuryStockCommonMember2022-09-300000895421ms:CommonStockIssuedToEmployeeTrustMember2023-06-300000895421ms:CommonStockIssuedToEmployeeTrustMember2022-06-300000895421ms:CommonStockIssuedToEmployeeTrustMember2022-12-310000895421ms:CommonStockIssuedToEmployeeTrustMember2021-12-310000895421ms:CommonStockIssuedToEmployeeTrustMember2023-07-012023-09-300000895421ms:CommonStockIssuedToEmployeeTrustMember2022-07-012022-09-300000895421ms:CommonStockIssuedToEmployeeTrustMember2023-01-012023-09-300000895421ms:CommonStockIssuedToEmployeeTrustMember2022-01-012022-09-300000895421ms:CommonStockIssuedToEmployeeTrustMember2023-09-300000895421ms:CommonStockIssuedToEmployeeTrustMember2022-09-300000895421us-gaap:NoncontrollingInterestMember2023-06-300000895421us-gaap:NoncontrollingInterestMember2022-06-300000895421us-gaap:NoncontrollingInterestMember2022-12-310000895421us-gaap:NoncontrollingInterestMember2021-12-310000895421us-gaap:NoncontrollingInterestMember2023-07-012023-09-300000895421us-gaap:NoncontrollingInterestMember2022-07-012022-09-300000895421us-gaap:NoncontrollingInterestMember2023-01-012023-09-300000895421us-gaap:NoncontrollingInterestMember2022-01-012022-09-300000895421us-gaap:NoncontrollingInterestMember2023-09-300000895421us-gaap:NoncontrollingInterestMember2022-09-3000008954212022-09-3000008954212021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2023-09-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2023-09-300000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:EquityContractMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:EquityContractMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2023-09-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2023-09-300000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2023-09-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel12And3Memberms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2022-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2022-12-310000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:EquityContractMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:EquityContractMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2022-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2022-12-310000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2022-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel12And3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel12And3Memberms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:SecuredLendingFacilitiesMemberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:SecuredLendingFacilitiesMemberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:CommercialRealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:CommercialRealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:ResidentialPortfolioSegmentMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:ResidentialPortfolioSegmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:SecuritiesBasedLendingandOtherLoansMemberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:SecuritiesBasedLendingandOtherLoansMemberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FutureMemberus-gaap:FairValueMeasurementsRecurringMemberms:AccountsReceivableAndOtherReceivablesNetMember2023-09-300000895421us-gaap:FutureMemberus-gaap:FairValueMeasurementsRecurringMemberms:AccountsReceivableAndOtherReceivablesNetMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMember2023-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMember2022-06-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMember2021-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMember2022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-07-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-07-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-01-012023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-01-012022-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMembersrt:MinimumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-30xbrli:pure0000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMembersrt:MinimumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMembersrt:MinimumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMembersrt:MinimumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMembersrt:MinimumMemberms:ValuationTechniqueMarginLoanMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputMarginLoanMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMembersrt:MaximumMemberms:ValuationTechniqueMarginLoanMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputMarginLoanMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberms:ValuationTechniqueMarginLoanMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputMarginLoanMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMembersrt:MinimumMemberms:ValuationTechniqueMarginLoanMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputMarginLoanMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMembersrt:MaximumMemberms:ValuationTechniqueMarginLoanMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputMarginLoanMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberms:ValuationTechniqueMarginLoanMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputMarginLoanMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMembersrt:MinimumMemberms:MeasurementInputLoanPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberms:MeasurementInputLoanPriceMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberms:MeasurementInputLoanPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMembersrt:MinimumMemberms:MeasurementInputLoanPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberms:MeasurementInputLoanPriceMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:SeniorDebtObligationsMemberms:MeasurementInputLoanPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMemberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputLossGivenDefaultMemberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MaximumMemberms:MeasurementInputLossGivenDefaultMemberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:ArithmeticAverageMemberms:MeasurementInputLossGivenDefaultMemberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputLossGivenDefaultMemberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputLossGivenDefaultMemberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MaximumMemberms:MeasurementInputLossGivenDefaultMemberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:ArithmeticAverageMemberms:MeasurementInputLossGivenDefaultMemberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputLossGivenDefaultMemberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputSharePriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputSharePriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MaximumMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MaximumMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MaximumMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MaximumMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MarketApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:MeasurementInputSharePriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputSharePriceMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputSharePriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:MeasurementInputSharePriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputSharePriceMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputSharePriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateVolatilitySkewMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateVolatilitySkewMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:BondVolatilityMeasurementInputMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:BondVolatilityMeasurementInputMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:BondVolatilityMeasurementInputMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberms:BondVolatilityMeasurementInputMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:MeasurementInputInflationVolatilityMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberms:MeasurementInputInflationVolatilityMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberms:MeasurementInputInflationVolatilityMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInflationVolatilityMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:MeasurementInputInflationVolatilityMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberms:MeasurementInputInflationVolatilityMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberms:MeasurementInputInflationVolatilityMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInflationVolatilityMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberms:MeasurementInputCashSyntheticBasisMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberms:MeasurementInputCashSyntheticBasisMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ForeignExchangeContractMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ForeignExchangeContractMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MinimumMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MaximumMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MinimumMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MaximumMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2022-12-310000895421ms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberms:MeasurementInputForeignExchangeCorrelationMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberms:MeasurementInputForeignExchangeCorrelationMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberms:MeasurementInputForeignExchangeCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberms:MeasurementInputForeignExchangeCorrelationMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberms:MeasurementInputForeignExchangeCorrelationMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:EquityContractMemberms:MeasurementInputForeignExchangeCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateCorrelationMemberus-gaap:EquityContractMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateCorrelationMemberus-gaap:EquityContractMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateCorrelationMemberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateCorrelationMemberus-gaap:EquityContractMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateCorrelationMemberus-gaap:EquityContractMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateCorrelationMemberus-gaap:EquityContractMembersrt:ArithmeticAverageMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputForwardPowerPriceMembersrt:MinimumMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-30iso4217:USDms:MWh0000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputForwardPowerPriceMemberms:CommodityAndOtherContractsMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputForwardPowerPriceMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputForwardPowerPriceMembersrt:MinimumMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputForwardPowerPriceMemberms:CommodityAndOtherContractsMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputForwardPowerPriceMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:CommodityAndOtherContractsMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMembersrt:MaximumMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:CommodityAndOtherContractsMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMembersrt:MaximumMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:CommodityAndOtherContractsMemberms:MeasurementInputCrossCommodityCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMembersrt:MaximumMemberms:MeasurementInputCrossCommodityCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberms:MeasurementInputCrossCommodityCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:CommodityAndOtherContractsMemberms:MeasurementInputCrossCommodityCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMembersrt:MaximumMemberms:MeasurementInputCrossCommodityCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberms:MeasurementInputCrossCommodityCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputFundingSpreadMember2022-12-310000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberms:MeasurementInputLoanPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputLoanPriceMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputLoanPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2023-09-300000895421us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberms:MeasurementInputLoanPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputLoanPriceMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputLoanPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:ValuationTechniqueComparablePricingMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityVolatilitySkewMember2022-12-310000895421ms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberms:MeasurementInputEquityCorrelationMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:ArithmeticAverageMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MaximumMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateVolatilitySkewMembersrt:ArithmeticAverageMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421srt:MedianMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsNonrecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsNonrecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMembersrt:MinimumMemberus-gaap:FairValueMeasurementsNonrecurringMemberms:ValuationTechniqueCorporateLoanModelMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMembersrt:MaximumMemberus-gaap:FairValueMeasurementsNonrecurringMemberms:ValuationTechniqueCorporateLoanModelMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberms:ValuationTechniqueCorporateLoanModelMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMembersrt:MinimumMemberus-gaap:FairValueMeasurementsNonrecurringMemberms:ValuationTechniqueCorporateLoanModelMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMembersrt:MaximumMemberus-gaap:FairValueMeasurementsNonrecurringMemberms:ValuationTechniqueCorporateLoanModelMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberms:ValuationTechniqueCorporateLoanModelMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMembersrt:MinimumMemberms:ValuationTechniqueWarehouseModelMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberms:ValuationTechniqueWarehouseModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-09-300000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberms:ValuationTechniqueWarehouseModelMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMembersrt:MinimumMemberms:ValuationTechniqueWarehouseModelMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberms:ValuationTechniqueWarehouseModelMembersrt:MaximumMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-12-310000895421srt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputCreditSpreadMemberms:ValuationTechniqueWarehouseModelMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-12-310000895421us-gaap:PrivateEquityFundsMember2023-09-300000895421us-gaap:PrivateEquityFundsMember2022-12-310000895421us-gaap:RealEstateFundsMember2023-09-300000895421us-gaap:RealEstateFundsMember2022-12-310000895421us-gaap:HedgeFundsMember2023-09-300000895421us-gaap:HedgeFundsMember2022-12-310000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMember2023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueMeasurementsNonrecurringMember2022-12-310000895421ms:LendingCommitmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-07-012023-09-300000895421ms:LendingCommitmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-07-012022-09-300000895421ms:LendingCommitmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-01-012023-09-300000895421ms:LendingCommitmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:OtherInvestmentsMember2023-07-012023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:OtherInvestmentsMember2022-07-012022-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:OtherInvestmentsMember2023-01-012023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:OtherInvestmentsMember2022-01-012022-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberms:PropertyPlantAndEquipmentAndCapitalizedSoftwareCostsMember2023-07-012023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberms:PropertyPlantAndEquipmentAndCapitalizedSoftwareCostsMember2022-07-012022-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberms:PropertyPlantAndEquipmentAndCapitalizedSoftwareCostsMember2023-01-012023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberms:PropertyPlantAndEquipmentAndCapitalizedSoftwareCostsMember2022-01-012022-09-300000895421ms:ROUAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-07-012023-09-300000895421ms:ROUAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-07-012022-09-300000895421ms:ROUAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-01-012023-09-300000895421ms:ROUAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:AssetsMember2023-07-012023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:AssetsMember2022-07-012022-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:AssetsMember2023-01-012023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:AssetsMember2022-01-012022-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:OtherLiabilitiesMember2023-07-012023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:OtherLiabilitiesMember2022-07-012022-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:OtherLiabilitiesMember2023-01-012023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:OtherLiabilitiesMember2022-01-012022-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:LiabilityMember2023-07-012023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:LiabilityMember2022-07-012022-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:LiabilityMember2023-01-012023-09-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:LiabilityMember2022-01-012022-09-300000895421us-gaap:PortionAtOtherThanFairValueFairValueDisclosureMember2023-09-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300000895421us-gaap:FairValueInputsLevel2Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300000895421us-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300000895421us-gaap:PortionAtOtherThanFairValueFairValueDisclosureMember2022-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310000895421us-gaap:FairValueInputsLevel2Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310000895421us-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310000895421us-gaap:DebtMemberus-gaap:TradingRevenueMember2023-07-012023-09-300000895421us-gaap:DebtMemberus-gaap:TradingRevenueMember2022-07-012022-09-300000895421us-gaap:DebtMemberus-gaap:TradingRevenueMember2023-01-012023-09-300000895421us-gaap:DebtMemberus-gaap:TradingRevenueMember2022-01-012022-09-300000895421us-gaap:DebtMemberus-gaap:InterestExpenseMember2023-07-012023-09-300000895421us-gaap:DebtMemberus-gaap:InterestExpenseMember2022-07-012022-09-300000895421us-gaap:DebtMemberus-gaap:InterestExpenseMember2023-01-012023-09-300000895421us-gaap:DebtMemberus-gaap:InterestExpenseMember2022-01-012022-09-300000895421us-gaap:DebtMember2023-07-012023-09-300000895421us-gaap:DebtMember2022-07-012022-09-300000895421us-gaap:DebtMember2023-01-012023-09-300000895421us-gaap:DebtMember2022-01-012022-09-300000895421us-gaap:TradingRevenueMemberms:LoansAndOtherReceivablesMember2023-07-012023-09-300000895421us-gaap:OtherComprehensiveIncomeMemberms:LoansAndOtherReceivablesMember2023-07-012023-09-300000895421us-gaap:TradingRevenueMemberms:LoansAndOtherReceivablesMember2022-07-012022-09-300000895421us-gaap:OtherComprehensiveIncomeMemberms:LoansAndOtherReceivablesMember2022-07-012022-09-300000895421us-gaap:WrittenLoanCommitmentFairValueOptionMemberus-gaap:TradingRevenueMember2023-07-012023-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:WrittenLoanCommitmentFairValueOptionMember2023-07-012023-09-300000895421us-gaap:WrittenLoanCommitmentFairValueOptionMemberus-gaap:TradingRevenueMember2022-07-012022-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:WrittenLoanCommitmentFairValueOptionMember2022-07-012022-09-300000895421us-gaap:DepositsMemberus-gaap:TradingRevenueMember2023-07-012023-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:DepositsMember2023-07-012023-09-300000895421us-gaap:DepositsMemberus-gaap:TradingRevenueMember2022-07-012022-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:DepositsMember2022-07-012022-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:DebtMember2023-07-012023-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:DebtMember2022-07-012022-09-300000895421us-gaap:TradingRevenueMemberms:LoansAndOtherReceivablesMember2023-01-012023-09-300000895421us-gaap:OtherComprehensiveIncomeMemberms:LoansAndOtherReceivablesMember2023-01-012023-09-300000895421us-gaap:TradingRevenueMemberms:LoansAndOtherReceivablesMember2022-01-012022-09-300000895421us-gaap:OtherComprehensiveIncomeMemberms:LoansAndOtherReceivablesMember2022-01-012022-09-300000895421us-gaap:WrittenLoanCommitmentFairValueOptionMemberus-gaap:TradingRevenueMember2023-01-012023-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:WrittenLoanCommitmentFairValueOptionMember2023-01-012023-09-300000895421us-gaap:WrittenLoanCommitmentFairValueOptionMemberus-gaap:TradingRevenueMember2022-01-012022-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:WrittenLoanCommitmentFairValueOptionMember2022-01-012022-09-300000895421us-gaap:DepositsMemberus-gaap:TradingRevenueMember2023-01-012023-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:DepositsMember2023-01-012023-09-300000895421us-gaap:DepositsMemberus-gaap:TradingRevenueMember2022-01-012022-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:DepositsMember2022-01-012022-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:DebtMember2023-01-012023-09-300000895421us-gaap:OtherComprehensiveIncomeMemberus-gaap:DebtMember2022-01-012022-09-300000895421us-gaap:InterestRateContractMemberus-gaap:OverTheCounterMemberus-gaap:DesignatedAsHedgingInstrumentMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ExchangeClearedMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:ExchangeTradedMemberus-gaap:DesignatedAsHedgingInstrumentMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:OverTheCounterMemberus-gaap:DesignatedAsHedgingInstrumentMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ExchangeClearedMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:ExchangeTradedMemberus-gaap:DesignatedAsHedgingInstrumentMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2023-09-300000895421us-gaap:OverTheCounterMemberus-gaap:DesignatedAsHedgingInstrumentMember2023-09-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ExchangeClearedMember2023-09-300000895421us-gaap:ExchangeTradedMemberus-gaap:DesignatedAsHedgingInstrumentMember2023-09-300000895421us-gaap:DesignatedAsHedgingInstrumentMember2023-09-300000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMemberus-gaap:OverTheCounterMember2023-09-300000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMemberus-gaap:ExchangeClearedMember2023-09-300000895421us-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMember2023-09-300000895421us-gaap:CreditRiskContractMemberus-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2023-09-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMemberus-gaap:OverTheCounterMember2023-09-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMemberus-gaap:ExchangeClearedMember2023-09-300000895421us-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMember2023-09-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2023-09-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2023-09-300000895421us-gaap:EquityContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2023-09-300000895421us-gaap:EquityContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2023-09-300000895421us-gaap:EquityContractMemberus-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2023-09-300000895421us-gaap:EquityContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2023-09-300000895421ms:CommodityAndOtherContractsMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2023-09-300000895421us-gaap:OverTheCounterMemberus-gaap:NondesignatedMember2023-09-300000895421us-gaap:NondesignatedMemberus-gaap:ExchangeClearedMember2023-09-300000895421us-gaap:ExchangeTradedMemberus-gaap:NondesignatedMember2023-09-300000895421us-gaap:NondesignatedMember2023-09-300000895421us-gaap:OverTheCounterMember2023-09-300000895421us-gaap:ExchangeClearedMember2023-09-300000895421us-gaap:ExchangeTradedMember2023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:OverTheCounterMemberus-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ExchangeClearedMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:ExchangeTradedMemberus-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:OverTheCounterMemberus-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ExchangeClearedMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:ExchangeTradedMemberus-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000895421us-gaap:OverTheCounterMemberus-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ExchangeClearedMember2022-12-310000895421us-gaap:ExchangeTradedMemberus-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMember2022-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMemberus-gaap:OverTheCounterMember2022-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMemberus-gaap:ExchangeClearedMember2022-12-310000895421us-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMember2022-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2022-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMemberus-gaap:OverTheCounterMember2022-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMemberus-gaap:ExchangeClearedMember2022-12-310000895421us-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMember2022-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2022-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2022-12-310000895421us-gaap:EquityContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2022-12-310000895421us-gaap:EquityContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2022-12-310000895421us-gaap:EquityContractMemberus-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2022-12-310000895421us-gaap:EquityContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2022-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2022-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2022-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:ExchangeTradedMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2022-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2022-12-310000895421us-gaap:OverTheCounterMemberus-gaap:NondesignatedMember2022-12-310000895421us-gaap:NondesignatedMemberus-gaap:ExchangeClearedMember2022-12-310000895421us-gaap:ExchangeTradedMemberus-gaap:NondesignatedMember2022-12-310000895421us-gaap:NondesignatedMember2022-12-310000895421us-gaap:OverTheCounterMember2022-12-310000895421us-gaap:ExchangeClearedMember2022-12-310000895421us-gaap:ExchangeTradedMember2022-12-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueHedgingMemberus-gaap:InterestIncomeMember2023-07-012023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueHedgingMemberus-gaap:InterestIncomeMember2022-07-012022-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueHedgingMemberus-gaap:InterestIncomeMember2023-01-012023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueHedgingMemberus-gaap:InterestIncomeMember2022-01-012022-09-300000895421ms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueHedgingMemberus-gaap:InterestIncomeMember2023-07-012023-09-300000895421ms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueHedgingMemberus-gaap:InterestIncomeMember2022-07-012022-09-300000895421ms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueHedgingMemberus-gaap:InterestIncomeMember2023-01-012023-09-300000895421ms:DebtSecuritiesAvailableForSaleMemberus-gaap:FairValueHedgingMemberus-gaap:InterestIncomeMember2022-01-012022-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMember2023-07-012023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMember2022-07-012022-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMember2023-01-012023-09-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMember2022-01-012022-09-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMemberus-gaap:DepositsMember2023-07-012023-09-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMemberus-gaap:DepositsMember2022-07-012022-09-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMemberus-gaap:DepositsMember2023-01-012023-09-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMemberus-gaap:DepositsMember2022-01-012022-09-300000895421us-gaap:FairValueHedgingMemberus-gaap:BorrowingsMemberus-gaap:InterestExpenseMember2023-07-012023-09-300000895421us-gaap:FairValueHedgingMemberus-gaap:BorrowingsMemberus-gaap:InterestExpenseMember2022-07-012022-09-300000895421us-gaap:FairValueHedgingMemberus-gaap:BorrowingsMemberus-gaap:InterestExpenseMember2023-01-012023-09-300000895421us-gaap:FairValueHedgingMemberus-gaap:BorrowingsMemberus-gaap:InterestExpenseMember2022-01-012022-09-300000895421us-gaap:NetInvestmentHedgingMemberus-gaap:ForeignExchangeContractMember2023-07-012023-09-300000895421us-gaap:NetInvestmentHedgingMemberus-gaap:ForeignExchangeContractMember2022-07-012022-09-300000895421us-gaap:NetInvestmentHedgingMemberus-gaap:ForeignExchangeContractMember2023-01-012023-09-300000895421us-gaap:NetInvestmentHedgingMemberus-gaap:ForeignExchangeContractMember2022-01-012022-09-300000895421ms:DebtSecuritiesAvailableForSaleMember2023-09-300000895421ms:DebtSecuritiesAvailableForSaleMember2022-12-310000895421us-gaap:DepositsMember2023-09-300000895421us-gaap:DepositsMember2022-12-310000895421us-gaap:BorrowingsMember2023-09-300000895421us-gaap:BorrowingsMember2022-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMember2023-07-012023-09-300000895421us-gaap:CreditRiskContractMemberus-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMember2022-07-012022-09-300000895421us-gaap:CreditRiskContractMemberus-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMember2023-01-012023-09-300000895421us-gaap:CreditRiskContractMemberus-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMember2022-01-012022-09-300000895421ms:DerivativeCreditRiskRelatedContingentFeaturesTriggeringCircumstancesOneNotchCreditRatingDowngradeMember2023-09-300000895421ms:DerivativeCreditRiskRelatedContingentFeaturestriggeringCircumstancesTwoNotchCreditRatingDowngradeMember2023-09-300000895421us-gaap:CollaborativeArrangementMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421us-gaap:InternalNoninvestmentGradeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421us-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421us-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421ms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421ms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:CreditDefaultSwapMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:CreditDefaultSwapMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:CreditDefaultSwapMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:CreditDefaultSwapMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421us-gaap:CreditDefaultSwapMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:OtherCreditDerivativesMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:OtherCreditDerivativesMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:OtherCreditDerivativesMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:OtherCreditDerivativesMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421us-gaap:OtherCreditDerivativesMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2023-09-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421ms:CreditDerivativesSellingProtectionMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421us-gaap:InternalNoninvestmentGradeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421us-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421us-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421ms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-12-310000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-12-310000895421ms:TotalIndexAndBasketCreditDefaultSwapsMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:CreditDefaultSwapMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:CreditDefaultSwapMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:CreditDefaultSwapMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:CreditDefaultSwapMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-12-310000895421us-gaap:CreditDefaultSwapMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:OtherCreditDerivativesMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:OtherCreditDerivativesMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:OtherCreditDerivativesMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:OtherCreditDerivativesMemberms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-12-310000895421us-gaap:OtherCreditDerivativesMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:CreditDerivativesSellingProtectionMember2022-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-12-310000895421ms:CreditDerivativesSellingProtectionMember2022-12-310000895421us-gaap:CreditDefaultSwapBuyingProtectionMemberms:SingleNameCreditDefaultSwapMember2023-09-300000895421us-gaap:CreditDefaultSwapBuyingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-12-310000895421us-gaap:CreditDefaultSwapBuyingProtectionMemberms:IndexAndBasketCreditDefaultSwapMember2023-09-300000895421us-gaap:CreditDefaultSwapBuyingProtectionMemberms:IndexAndBasketCreditDefaultSwapMember2022-12-310000895421us-gaap:CreditDefaultSwapBuyingProtectionMemberms:TranchedIndexAndBasketCreditDefaultSwapMember2023-09-300000895421us-gaap:CreditDefaultSwapBuyingProtectionMemberms:TranchedIndexAndBasketCreditDefaultSwapMember2022-12-310000895421us-gaap:CreditDefaultSwapBuyingProtectionMember2023-09-300000895421us-gaap:CreditDefaultSwapBuyingProtectionMember2022-12-310000895421us-gaap:CreditDefaultSwapMemberus-gaap:CreditDefaultSwapBuyingProtectionMember2023-09-300000895421us-gaap:CreditDefaultSwapMemberus-gaap:CreditDefaultSwapBuyingProtectionMember2022-12-310000895421us-gaap:USTreasurySecuritiesMember2023-09-300000895421us-gaap:USGovernmentAgenciesDebtSecuritiesMember2023-09-300000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2023-09-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMember2023-09-300000895421ms:AssetBackedSecuritiesFederalFamilyEducationLoanProgramMember2023-09-300000895421ms:AssetBackedSecuritiesOtherMember2023-09-300000895421us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember2023-09-300000895421us-gaap:USTreasurySecuritiesMember2022-12-310000895421us-gaap:USGovernmentAgenciesDebtSecuritiesMember2022-12-310000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2022-12-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMember2022-12-310000895421ms:AssetBackedSecuritiesFederalFamilyEducationLoanProgramMember2022-12-310000895421us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember2022-12-310000895421us-gaap:USTreasurySecuritiesMember2023-01-012023-09-300000895421us-gaap:USGovernmentAgenciesDebtSecuritiesMember2023-01-012023-09-300000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2023-01-012023-09-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMember2023-01-012023-09-300000895421ms:AssetBackedSecuritiesFederalFamilyEducationLoanProgramMember2023-01-012023-09-300000895421us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember2023-01-012023-09-300000895421us-gaap:MaturityOvernightMember2023-09-300000895421us-gaap:MaturityUpTo30DaysMember2023-09-300000895421us-gaap:Maturity30To90DaysMember2023-09-300000895421us-gaap:MaturityOver90DaysMember2023-09-300000895421us-gaap:MaturityOvernightMember2022-12-310000895421us-gaap:MaturityUpTo30DaysMember2022-12-310000895421us-gaap:Maturity30To90DaysMember2022-12-310000895421us-gaap:MaturityOver90DaysMember2022-12-310000895421us-gaap:USTreasuryAndGovernmentMember2023-09-300000895421us-gaap:USTreasuryAndGovernmentMember2022-12-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMember2023-09-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMember2022-12-310000895421ms:CorporateEquitiesMember2023-09-300000895421ms:CorporateEquitiesMember2022-12-310000895421us-gaap:CollateralizedSecuritiesOtherMember2023-09-300000895421us-gaap:CollateralizedSecuritiesOtherMember2022-12-310000895421us-gaap:CommercialPortfolioSegmentMember2023-09-300000895421ms:SecuredLendingFacilitiesMember2023-09-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2023-09-300000895421us-gaap:ResidentialPortfolioSegmentMember2023-09-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2023-09-300000895421us-gaap:CommercialPortfolioSegmentMember2022-12-310000895421ms:SecuredLendingFacilitiesMember2022-12-310000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2022-12-310000895421us-gaap:ResidentialPortfolioSegmentMember2022-12-310000895421ms:SecuritiesBasedLendingandOtherLoansMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberus-gaap:CommercialPortfolioSegmentMember2023-09-300000895421us-gaap:CommercialPortfolioSegmentMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberus-gaap:CommercialPortfolioSegmentMember2022-12-310000895421us-gaap:CommercialPortfolioSegmentMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:SecuredLendingFacilitiesMember2023-09-300000895421ms:SecuredLendingFacilitiesMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:SecuredLendingFacilitiesMember2022-12-310000895421ms:SecuredLendingFacilitiesMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberus-gaap:CommercialRealEstatePortfolioSegmentMember2023-09-300000895421us-gaap:InternalNoninvestmentGradeMemberus-gaap:CommercialRealEstatePortfolioSegmentMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberus-gaap:CommercialRealEstatePortfolioSegmentMember2022-12-310000895421us-gaap:InternalNoninvestmentGradeMemberus-gaap:CommercialRealEstatePortfolioSegmentMember2022-12-310000895421ms:FICOScoreGreaterthanorEqualto740Memberus-gaap:ResidentialPortfolioSegmentMember2023-09-300000895421us-gaap:ResidentialPortfolioSegmentMemberms:FICOScoreBetween680and739Member2023-09-300000895421us-gaap:ResidentialPortfolioSegmentMemberms:FICOScoreLessthan680Member2023-09-300000895421ms:DebttoValueRatioLessthanorEqualto80PercentMemberus-gaap:ResidentialPortfolioSegmentMember2023-09-300000895421ms:DebttoValueRatioGreaterthan80PercentMemberus-gaap:ResidentialPortfolioSegmentMember2023-09-300000895421ms:FICOScoreGreaterthanorEqualto740Memberus-gaap:ResidentialPortfolioSegmentMember2022-12-310000895421us-gaap:ResidentialPortfolioSegmentMemberms:FICOScoreBetween680and739Member2022-12-310000895421us-gaap:ResidentialPortfolioSegmentMemberms:FICOScoreLessthan680Member2022-12-310000895421ms:DebttoValueRatioLessthanorEqualto80PercentMemberus-gaap:ResidentialPortfolioSegmentMember2022-12-310000895421ms:DebttoValueRatioGreaterthan80PercentMemberus-gaap:ResidentialPortfolioSegmentMember2022-12-310000895421ms:SecuritiesBasedLendingMember2023-09-300000895421ms:OtherLoansMemberus-gaap:InternalInvestmentGradeMember2023-09-300000895421ms:OtherLoansMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300000895421ms:SecuritiesBasedLendingMember2022-12-310000895421ms:OtherLoansMemberus-gaap:InternalInvestmentGradeMember2022-12-310000895421ms:OtherLoansMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310000895421us-gaap:CommercialPortfolioSegmentMemberms:FinancialAssetPastDueMinusCurrentMember2023-09-300000895421us-gaap:CommercialPortfolioSegmentMemberms:FinancialAssetPastDueMinusCurrentMember2022-12-310000895421ms:SecuredLendingFacilitiesMemberms:FinancialAssetPastDueMinusCurrentMember2023-09-300000895421ms:SecuredLendingFacilitiesMemberms:FinancialAssetPastDueMinusCurrentMember2022-12-310000895421us-gaap:CommercialRealEstatePortfolioSegmentMemberms:FinancialAssetPastDueMinusCurrentMember2023-09-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMemberms:FinancialAssetPastDueMinusCurrentMember2022-12-310000895421us-gaap:ResidentialPortfolioSegmentMemberms:FinancialAssetPastDueMinusCurrentMember2023-09-300000895421us-gaap:ResidentialPortfolioSegmentMemberms:FinancialAssetPastDueMinusCurrentMember2022-12-310000895421ms:SecuritiesBasedLendingandOtherLoansMemberms:FinancialAssetPastDueMinusCurrentMember2023-09-300000895421ms:SecuritiesBasedLendingandOtherLoansMemberms:FinancialAssetPastDueMinusCurrentMember2022-12-310000895421ms:FinancialAssetPastDueMinusCurrentMember2023-09-300000895421ms:FinancialAssetPastDueMinusCurrentMember2022-12-310000895421us-gaap:CommercialPortfolioSegmentMemberus-gaap:ExtendedMaturityMember2023-07-012023-09-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMemberus-gaap:ExtendedMaturityMember2023-07-012023-09-300000895421ms:SecuritiesBasedLendingandOtherLoansMemberus-gaap:ExtendedMaturityMember2023-07-012023-09-300000895421us-gaap:ExtendedMaturityMember2023-07-012023-09-300000895421us-gaap:CommercialPortfolioSegmentMemberus-gaap:ExtendedMaturityMember2023-01-012023-09-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMemberus-gaap:ExtendedMaturityMember2023-01-012023-09-300000895421us-gaap:ResidentialPortfolioSegmentMemberus-gaap:ExtendedMaturityMember2023-01-012023-09-300000895421ms:SecuritiesBasedLendingandOtherLoansMemberus-gaap:ExtendedMaturityMember2023-01-012023-09-300000895421us-gaap:ExtendedMaturityMember2023-01-012023-09-300000895421us-gaap:ExtendedMaturityAndInterestRateReductionMemberus-gaap:CommercialRealEstatePortfolioSegmentMember2023-01-012023-09-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMemberms:MultipleLoanModificationsExtendedMaturityMember2023-01-012023-09-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMemberms:MultipleLoanModificationsPaymentDeferralMember2023-01-012023-09-300000895421ms:FinancialAsset30To89DaysPastDueMemberus-gaap:CommercialRealEstatePortfolioSegmentMember2023-09-300000895421ms:FinancialAsset90DaysPastDueMemberus-gaap:CommercialRealEstatePortfolioSegmentMember2023-09-300000895421us-gaap:FinancialAssetPastDueMemberus-gaap:CommercialRealEstatePortfolioSegmentMember2023-09-300000895421us-gaap:ResidentialPortfolioSegmentMemberms:FinancialAsset30To89DaysPastDueMember2023-09-300000895421ms:FinancialAsset90DaysPastDueMemberus-gaap:ResidentialPortfolioSegmentMember2023-09-300000895421us-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialPortfolioSegmentMember2023-09-300000895421ms:FinancialAsset30To89DaysPastDueMember2023-09-300000895421ms:FinancialAsset90DaysPastDueMember2023-09-300000895421us-gaap:FinancialAssetPastDueMember2023-09-300000895421us-gaap:CommercialPortfolioSegmentMember2023-07-012023-09-300000895421ms:SecuredLendingFacilitiesMember2023-07-012023-09-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2023-07-012023-09-300000895421us-gaap:ResidentialPortfolioSegmentMember2023-07-012023-09-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2023-07-012023-09-300000895421us-gaap:CommercialPortfolioSegmentMember2023-01-012023-09-300000895421ms:SecuredLendingFacilitiesMember2023-01-012023-09-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2023-01-012023-09-300000895421us-gaap:ResidentialPortfolioSegmentMember2023-01-012023-09-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2023-01-012023-09-300000895421us-gaap:CommercialPortfolioSegmentMember2021-12-310000895421ms:SecuredLendingFacilitiesMember2021-12-310000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2021-12-310000895421us-gaap:ResidentialPortfolioSegmentMember2021-12-310000895421ms:SecuritiesBasedLendingandOtherLoansMember2021-12-310000895421us-gaap:CommercialPortfolioSegmentMember2022-01-012022-09-300000895421ms:SecuredLendingFacilitiesMember2022-01-012022-09-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2022-01-012022-09-300000895421us-gaap:ResidentialPortfolioSegmentMember2022-01-012022-09-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2022-01-012022-09-300000895421us-gaap:CommercialPortfolioSegmentMember2022-09-300000895421ms:SecuredLendingFacilitiesMember2022-09-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2022-09-300000895421us-gaap:ResidentialPortfolioSegmentMember2022-09-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2022-09-300000895421us-gaap:RelatedPartyMemberms:CurrentlyEmployedbytheFirmMember2023-09-300000895421us-gaap:RelatedPartyMemberms:CurrentlyEmployedbytheFirmMember2022-12-310000895421us-gaap:RelatedPartyMemberms:NoLongerEmployedbytheFirmMember2023-09-300000895421us-gaap:RelatedPartyMemberms:NoLongerEmployedbytheFirmMember2022-12-3100008954212022-01-012022-12-310000895421ms:InvestmentManagementSegmentMember2023-09-300000895421ms:InvestmentManagementSegmentMember2022-12-310000895421ms:InvestmentManagementSegmentMember2023-07-012023-09-300000895421ms:InvestmentManagementSegmentMember2022-07-012022-09-300000895421ms:InvestmentManagementSegmentMember2023-01-012023-09-300000895421ms:InvestmentManagementSegmentMember2022-01-012022-09-300000895421ms:MitsubishiUfjMorganStanleySecuritiesCoLtdMember2023-07-012023-09-300000895421ms:MitsubishiUfjMorganStanleySecuritiesCoLtdMember2022-07-012022-09-300000895421ms:MitsubishiUfjMorganStanleySecuritiesCoLtdMember2023-01-012023-09-300000895421ms:MitsubishiUfjMorganStanleySecuritiesCoLtdMember2022-01-012022-09-300000895421us-gaap:CommercialLoanMember2023-09-300000895421ms:SecuredLendingFacilitiesMember2023-09-300000895421us-gaap:RealEstateMember2023-09-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2023-09-300000895421ms:CommitmentsForwardStartingReverseRepurchaseAgreementsMember2023-09-300000895421ms:CentralCounterpartyCommitmentMember2023-09-300000895421ms:FirmCommitmentContractMember2023-09-300000895421ms:CommitmentsInvestmentActivitiesMember2023-09-300000895421ms:CommitmentsLettersOfCreditAndOtherFinancialGuaranteesObtainedToSatisfyCollateralRequirementsMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:DerivativeMember2023-09-300000895421ms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberus-gaap:DerivativeMember2023-09-300000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:DerivativeMember2023-09-300000895421ms:MoreThanFiveYearsFromBalanceSheetDateMemberus-gaap:DerivativeMember2023-09-300000895421us-gaap:DerivativeMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:StandbyLettersOfCreditMember2023-09-300000895421us-gaap:StandbyLettersOfCreditMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2023-09-300000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:StandbyLettersOfCreditMember2023-09-300000895421us-gaap:StandbyLettersOfCreditMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421us-gaap:StandbyLettersOfCreditMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:MarketValueGuaranteeMember2023-09-300000895421us-gaap:MarketValueGuaranteeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2023-09-300000895421us-gaap:MarketValueGuaranteeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2023-09-300000895421us-gaap:MarketValueGuaranteeMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421us-gaap:MarketValueGuaranteeMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:LiquidityFacilitiesGuaranteeMember2023-09-300000895421ms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:LiquidityFacilitiesGuaranteeMember2023-09-300000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:LiquidityFacilitiesGuaranteeMember2023-09-300000895421ms:MoreThanFiveYearsFromBalanceSheetDateMemberms:LiquidityFacilitiesGuaranteeMember2023-09-300000895421ms:LiquidityFacilitiesGuaranteeMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:WholeLoanSalesRepresentationsAndWarrantiesMember2023-09-300000895421ms:WholeLoanSalesRepresentationsAndWarrantiesMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2023-09-300000895421ms:WholeLoanSalesRepresentationsAndWarrantiesMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2023-09-300000895421ms:WholeLoanSalesRepresentationsAndWarrantiesMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421ms:WholeLoanSalesRepresentationsAndWarrantiesMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:SecuritizationsRepresentationsAndGuaranteesMember2023-09-300000895421ms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:SecuritizationsRepresentationsAndGuaranteesMember2023-09-300000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:SecuritizationsRepresentationsAndGuaranteesMember2023-09-300000895421ms:MoreThanFiveYearsFromBalanceSheetDateMemberms:SecuritizationsRepresentationsAndGuaranteesMember2023-09-300000895421ms:SecuritizationsRepresentationsAndGuaranteesMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:GeneralPartnerGuaranteeMember2023-09-300000895421ms:GeneralPartnerGuaranteeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2023-09-300000895421ms:GeneralPartnerGuaranteeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2023-09-300000895421ms:GeneralPartnerGuaranteeMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421ms:GeneralPartnerGuaranteeMember2023-09-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:ClearingMemberGuaranteeMember2023-09-300000895421ms:ClearingMemberGuaranteeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2023-09-300000895421ms:ClearingMemberGuaranteeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2023-09-300000895421ms:ClearingMemberGuaranteeMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2023-09-300000895421ms:ClearingMemberGuaranteeMember2023-09-300000895421ms:CaseNumber153637AndCaseNumber154353Memberus-gaap:PendingLitigationMember2023-09-30iso4217:EUR0000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberms:InvestmentVehiclesMember2023-09-300000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberms:InvestmentVehiclesMember2022-12-310000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMember2023-09-300000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMember2022-12-310000895421ms:OtherVariableInterestsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-09-300000895421ms:OtherVariableInterestsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-310000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-09-300000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-310000895421ms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:CollateralizedDebtObligationsMember2023-09-300000895421ms:MunicipalTenderOptionBondsMember2023-09-300000895421us-gaap:StructuredFinanceMember2023-09-300000895421ms:OtherVariableInterestsMember2023-09-300000895421ms:DebtandEquityInterestsMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:CollateralizedDebtObligationsMemberms:DebtandEquityInterestsMember2023-09-300000895421ms:DebtandEquityInterestsMemberms:MunicipalTenderOptionBondsMember2023-09-300000895421ms:DebtandEquityInterestsMemberus-gaap:StructuredFinanceMember2023-09-300000895421ms:OtherVariableInterestsMemberms:DebtandEquityInterestsMember2023-09-300000895421ms:MortgageAndAssetBackedSecuritiesMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2023-09-300000895421us-gaap:CollateralizedDebtObligationsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2023-09-300000895421ms:MunicipalTenderOptionBondsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2023-09-300000895421us-gaap:StructuredFinanceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2023-09-300000895421ms:OtherVariableInterestsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2023-09-300000895421ms:CommitmentsGuaranteesAndOtherMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:CollateralizedDebtObligationsMemberms:CommitmentsGuaranteesAndOtherMember2023-09-300000895421ms:CommitmentsGuaranteesAndOtherMemberms:MunicipalTenderOptionBondsMember2023-09-300000895421us-gaap:StructuredFinanceMemberms:CommitmentsGuaranteesAndOtherMember2023-09-300000895421ms:OtherVariableInterestsMemberms:CommitmentsGuaranteesAndOtherMember2023-09-300000895421ms:DebtandEquityInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:CollateralizedDebtObligationsMemberms:DebtandEquityInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-09-300000895421ms:DebtandEquityInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMember2023-09-300000895421ms:DebtandEquityInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:StructuredFinanceMember2023-09-300000895421ms:OtherVariableInterestsMemberms:DebtandEquityInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2023-09-300000895421us-gaap:CollateralizedDebtObligationsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:StructuredFinanceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2023-09-300000895421ms:OtherVariableInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:AssetsMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:CollateralizedDebtObligationsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:AssetsMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:AssetsMemberms:MunicipalTenderOptionBondsMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:StructuredFinanceMemberus-gaap:AssetsMember2023-09-300000895421ms:OtherVariableInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:AssetsMember2023-09-300000895421us-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMember2023-09-300000895421us-gaap:CollateralizedDebtObligationsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-09-300000895421us-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMember2023-09-300000895421us-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:StructuredFinanceMember2023-09-300000895421us-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberms:OtherVariableInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-09-300000895421ms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:CollateralizedDebtObligationsMember2022-12-310000895421ms:MunicipalTenderOptionBondsMember2022-12-310000895421us-gaap:StructuredFinanceMember2022-12-310000895421ms:OtherVariableInterestsMember2022-12-310000895421ms:DebtandEquityInterestsMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:CollateralizedDebtObligationsMemberms:DebtandEquityInterestsMember2022-12-310000895421ms:DebtandEquityInterestsMemberms:MunicipalTenderOptionBondsMember2022-12-310000895421ms:DebtandEquityInterestsMemberus-gaap:StructuredFinanceMember2022-12-310000895421ms:OtherVariableInterestsMemberms:DebtandEquityInterestsMember2022-12-310000895421ms:MortgageAndAssetBackedSecuritiesMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-12-310000895421us-gaap:CollateralizedDebtObligationsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-12-310000895421ms:MunicipalTenderOptionBondsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-12-310000895421us-gaap:StructuredFinanceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-12-310000895421ms:OtherVariableInterestsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-12-310000895421ms:CommitmentsGuaranteesAndOtherMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:CollateralizedDebtObligationsMemberms:CommitmentsGuaranteesAndOtherMember2022-12-310000895421ms:CommitmentsGuaranteesAndOtherMemberms:MunicipalTenderOptionBondsMember2022-12-310000895421us-gaap:StructuredFinanceMemberms:CommitmentsGuaranteesAndOtherMember2022-12-310000895421ms:OtherVariableInterestsMemberms:CommitmentsGuaranteesAndOtherMember2022-12-310000895421ms:DebtandEquityInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:CollateralizedDebtObligationsMemberms:DebtandEquityInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2022-12-310000895421ms:DebtandEquityInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMember2022-12-310000895421ms:DebtandEquityInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:StructuredFinanceMember2022-12-310000895421ms:OtherVariableInterestsMemberms:DebtandEquityInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-12-310000895421us-gaap:CollateralizedDebtObligationsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:StructuredFinanceMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-12-310000895421ms:OtherVariableInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:AssetsMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:CollateralizedDebtObligationsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:AssetsMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:AssetsMemberms:MunicipalTenderOptionBondsMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:StructuredFinanceMemberus-gaap:AssetsMember2022-12-310000895421ms:OtherVariableInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:AssetsMember2022-12-310000895421us-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMember2022-12-310000895421us-gaap:CollateralizedDebtObligationsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2022-12-310000895421us-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMember2022-12-310000895421us-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:StructuredFinanceMember2022-12-310000895421us-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberms:OtherVariableInterestsMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CommercialMortgageBackedSecuritiesMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMemberus-gaap:CommercialMortgageBackedSecuritiesMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CommercialMortgageBackedSecuritiesMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMemberus-gaap:CommercialMortgageBackedSecuritiesMember2022-12-310000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-09-300000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMember2023-09-300000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2022-12-310000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberus-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherConsumerAndCommercialLoansMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMemberms:OtherConsumerAndCommercialLoansMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherConsumerAndCommercialLoansMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMemberms:OtherConsumerAndCommercialLoansMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMember2023-09-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2022-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:ResidentialMortgageMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberms:CreditLinkedNotesAndOtherMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMemberus-gaap:ResidentialMortgageMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMemberus-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMemberms:CreditLinkedNotesAndOtherMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:ResidentialMortgageMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMemberus-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberms:CreditLinkedNotesAndOtherMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:ResidentialMortgageMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberms:CreditLinkedNotesAndOtherMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMemberus-gaap:ResidentialMortgageMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMemberus-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMemberms:CreditLinkedNotesAndOtherMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:ResidentialMortgageMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMemberus-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberms:CreditLinkedNotesAndOtherMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:FairValueInputsLevel2Member2023-09-300000895421us-gaap:FairValueInputsLevel3Memberms:SpecialPurposeEntitiesMember2023-09-300000895421ms:SpecialPurposeEntitiesMember2023-09-300000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberus-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMember2022-12-310000895421us-gaap:InternalInvestmentGradeMemberms:SpecialPurposeEntitiesMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:FairValueInputsLevel2Member2022-12-310000895421us-gaap:FairValueInputsLevel3Memberms:SpecialPurposeEntitiesMember2022-12-310000895421ms:SpecialPurposeEntitiesMember2022-12-310000895421ms:CollateralizedLoanObligationsEntitiesSponsoredByNonAffiliatesMemberus-gaap:CommercialLoanMember2023-07-012023-09-300000895421ms:CollateralizedLoanObligationsEntitiesSponsoredByNonAffiliatesMemberus-gaap:CommercialLoanMember2022-07-012022-09-300000895421ms:CollateralizedLoanObligationsEntitiesSponsoredByNonAffiliatesMemberus-gaap:CommercialLoanMember2023-01-012023-09-300000895421ms:CollateralizedLoanObligationsEntitiesSponsoredByNonAffiliatesMemberus-gaap:CommercialLoanMember2022-01-012022-09-300000895421us-gaap:EquityContractMemberus-gaap:OverTheCounterMember2023-09-300000895421us-gaap:EquityContractMemberus-gaap:OverTheCounterMember2022-12-310000895421srt:MaximumMember2023-09-300000895421ms:MorganStanleyBankNationalAssociationMember2023-01-012023-09-300000895421ms:MorganStanleyBankNationalAssociationMember2023-09-300000895421ms:MorganStanleyBankNationalAssociationMember2022-12-310000895421ms:MorganStanleyPrivateBankNationalAssociationMember2023-01-012023-09-300000895421ms:MorganStanleyPrivateBankNationalAssociationMember2023-09-300000895421ms:MorganStanleyPrivateBankNationalAssociationMember2022-12-310000895421ms:MSAndCoMember2023-01-012023-09-300000895421ms:MSAndCoMember2023-09-300000895421ms:MSAndCoMember2022-12-310000895421us-gaap:SeriesAPreferredStockMember2023-09-300000895421us-gaap:SeriesAPreferredStockMember2022-12-310000895421us-gaap:SeriesCPreferredStockMember2023-09-300000895421us-gaap:SeriesCPreferredStockMember2022-12-310000895421us-gaap:SeriesEPreferredStockMember2023-09-300000895421us-gaap:SeriesEPreferredStockMember2022-12-310000895421us-gaap:SeriesFPreferredStockMember2023-09-300000895421us-gaap:SeriesFPreferredStockMember2022-12-310000895421ms:SeriesIPreferredStockMember2023-09-300000895421ms:SeriesIPreferredStockMember2022-12-310000895421ms:SeriesKPreferredStockMember2023-09-300000895421ms:SeriesKPreferredStockMember2022-12-310000895421ms:SeriesLPreferredStockMember2023-09-300000895421ms:SeriesLPreferredStockMember2022-12-310000895421ms:SeriesMPreferredStockMember2023-09-300000895421ms:SeriesMPreferredStockMember2022-12-310000895421ms:SeriesNPreferredStockMember2023-09-300000895421ms:SeriesNPreferredStockMember2022-12-310000895421ms:SeriesOPreferredStockMember2023-09-300000895421ms:SeriesOPreferredStockMember2022-12-310000895421ms:SeriesPPreferredStockMember2023-09-300000895421ms:SeriesPPreferredStockMember2022-12-3100008954212023-06-300000895421us-gaap:SeriesAPreferredStockMember2023-07-012023-09-300000895421us-gaap:SeriesAPreferredStockMember2022-07-012022-09-300000895421us-gaap:SeriesCPreferredStockMember2023-07-012023-09-300000895421us-gaap:SeriesCPreferredStockMember2022-07-012022-09-300000895421us-gaap:SeriesEPreferredStockMember2023-07-012023-09-300000895421us-gaap:SeriesEPreferredStockMember2022-07-012022-09-300000895421us-gaap:SeriesFPreferredStockMember2023-07-012023-09-300000895421us-gaap:SeriesFPreferredStockMember2022-07-012022-09-300000895421ms:SeriesIPreferredStockMember2023-07-012023-09-300000895421ms:SeriesIPreferredStockMember2022-07-012022-09-300000895421ms:SeriesKPreferredStockMember2023-07-012023-09-300000895421ms:SeriesKPreferredStockMember2022-07-012022-09-300000895421ms:SeriesLPreferredStockMember2023-07-012023-09-300000895421ms:SeriesLPreferredStockMember2022-07-012022-09-300000895421ms:SeriesMPreferredStockMember2023-07-012023-09-300000895421ms:SeriesMPreferredStockMember2022-07-012022-09-300000895421ms:SeriesNPreferredStockMember2023-07-012023-09-300000895421ms:SeriesNPreferredStockMember2022-07-012022-09-300000895421ms:SeriesOPreferredStockMember2023-07-012023-09-300000895421ms:SeriesOPreferredStockMember2022-07-012022-09-300000895421ms:SeriesPPreferredStockMember2023-07-012023-09-300000895421ms:SeriesPPreferredStockMember2022-07-012022-09-300000895421us-gaap:SeriesAPreferredStockMember2022-01-012022-09-300000895421us-gaap:SeriesCPreferredStockMember2023-01-012023-09-300000895421us-gaap:SeriesCPreferredStockMember2022-01-012022-09-300000895421us-gaap:SeriesEPreferredStockMember2022-01-012022-09-300000895421us-gaap:SeriesFPreferredStockMember2022-01-012022-09-300000895421ms:SeriesIPreferredStockMember2022-01-012022-09-300000895421ms:SeriesKPreferredStockMember2022-01-012022-09-300000895421ms:SeriesLPreferredStockMember2022-01-012022-09-300000895421ms:SeriesMPreferredStockMember2023-01-012023-09-300000895421ms:SeriesMPreferredStockMember2022-01-012022-09-300000895421ms:SeriesNPreferredStockMember2023-01-012023-09-300000895421ms:SeriesNPreferredStockMember2022-01-012022-09-300000895421ms:SeriesOPreferredStockMember2022-01-012022-09-300000895421ms:SeriesPPreferredStockMember2022-01-012022-09-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2023-06-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-06-300000895421ms:AOCIDebtValuationAdjustmentParentMember2023-06-300000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-06-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2023-07-012023-09-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-07-012023-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-07-012023-09-300000895421ms:AOCIDebtValuationAdjustmentParentMember2023-07-012023-09-300000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-07-012023-09-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2023-09-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-09-300000895421ms:AOCIDebtValuationAdjustmentParentMember2023-09-300000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-09-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2022-06-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-06-300000895421ms:AOCIDebtValuationAdjustmentParentMember2022-06-300000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2022-06-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2022-07-012022-09-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-07-012022-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-07-012022-09-300000895421ms:AOCIDebtValuationAdjustmentParentMember2022-07-012022-09-300000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2022-07-012022-09-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2022-09-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-09-300000895421ms:AOCIDebtValuationAdjustmentParentMember2022-09-300000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2022-09-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2022-12-310000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-12-310000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-12-310000895421ms:AOCIDebtValuationAdjustmentParentMember2022-12-310000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2022-12-310000895421us-gaap:AccumulatedTranslationAdjustmentMember2023-01-012023-09-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-01-012023-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-01-012023-09-300000895421ms:AOCIDebtValuationAdjustmentParentMember2023-01-012023-09-300000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-01-012023-09-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2021-12-310000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-12-310000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-12-310000895421ms:AOCIDebtValuationAdjustmentParentMember2021-12-310000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2021-12-310000895421us-gaap:AccumulatedTranslationAdjustmentMember2022-01-012022-09-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-01-012022-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-01-012022-09-300000895421ms:AOCIDebtValuationAdjustmentParentMember2022-01-012022-09-300000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2022-01-012022-09-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2023-07-012023-09-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2023-07-012023-09-300000895421us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-07-012023-09-300000895421us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2023-07-012023-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2023-07-012023-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentAttributableToNoncontrollingInterestMember2023-07-012023-09-300000895421ms:AOCIDebtValuationAdjustmentIncludingNoncontrollingInterestMember2023-07-012023-09-300000895421ms:AOCIDebtValuationAdjustmentNoncontrollingInterestMember2023-07-012023-09-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeLossDerivativeQualifyingAsHedgeExcludedComponentIncludingPortionAttributableToNoncontrollingInterestMember2023-07-012023-09-300000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentNoncontrollingInterestMember2023-07-012023-09-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2022-07-012022-09-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2022-07-012022-09-300000895421us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-07-012022-09-300000895421us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2022-07-012022-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2022-07-012022-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentAttributableToNoncontrollingInterestMember2022-07-012022-09-300000895421ms:AOCIDebtValuationAdjustmentIncludingNoncontrollingInterestMember2022-07-012022-09-300000895421ms:AOCIDebtValuationAdjustmentNoncontrollingInterestMember2022-07-012022-09-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-09-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2023-01-012023-09-300000895421us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-09-300000895421us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2023-01-012023-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentAttributableToNoncontrollingInterestMember2023-01-012023-09-300000895421ms:AOCIDebtValuationAdjustmentIncludingNoncontrollingInterestMember2023-01-012023-09-300000895421ms:AOCIDebtValuationAdjustmentNoncontrollingInterestMember2023-01-012023-09-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeLossDerivativeQualifyingAsHedgeExcludedComponentIncludingPortionAttributableToNoncontrollingInterestMember2023-01-012023-09-300000895421us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentNoncontrollingInterestMember2023-01-012023-09-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-09-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2022-01-012022-09-300000895421us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-09-300000895421us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2022-01-012022-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-09-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentAttributableToNoncontrollingInterestMember2022-01-012022-09-300000895421ms:AOCIDebtValuationAdjustmentIncludingNoncontrollingInterestMember2022-01-012022-09-300000895421ms:AOCIDebtValuationAdjustmentNoncontrollingInterestMember2022-01-012022-09-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMember2023-07-012023-09-300000895421ms:WealthManagementSegmentMemberus-gaap:OperatingSegmentsMember2023-07-012023-09-300000895421ms:InvestmentManagementSegmentMemberus-gaap:OperatingSegmentsMember2023-07-012023-09-300000895421us-gaap:IntersegmentEliminationMember2023-07-012023-09-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMember2022-07-012022-09-300000895421ms:WealthManagementSegmentMemberus-gaap:OperatingSegmentsMember2022-07-012022-09-300000895421ms:InvestmentManagementSegmentMemberus-gaap:OperatingSegmentsMember2022-07-012022-09-300000895421us-gaap:IntersegmentEliminationMember2022-07-012022-09-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMember2023-01-012023-09-300000895421ms:WealthManagementSegmentMemberus-gaap:OperatingSegmentsMember2023-01-012023-09-300000895421ms:InvestmentManagementSegmentMemberus-gaap:OperatingSegmentsMember2023-01-012023-09-300000895421us-gaap:IntersegmentEliminationMember2023-01-012023-09-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMember2022-01-012022-09-300000895421ms:WealthManagementSegmentMemberus-gaap:OperatingSegmentsMember2022-01-012022-09-300000895421ms:InvestmentManagementSegmentMemberus-gaap:OperatingSegmentsMember2022-01-012022-09-300000895421us-gaap:IntersegmentEliminationMember2022-01-012022-09-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:InvestmentAdviceMemberus-gaap:OperatingSegmentsMember2023-07-012023-09-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:InvestmentAdviceMemberus-gaap:OperatingSegmentsMember2022-07-012022-09-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:InvestmentAdviceMemberus-gaap:OperatingSegmentsMember2023-01-012023-09-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:InvestmentAdviceMemberus-gaap:OperatingSegmentsMember2022-01-012022-09-300000895421ms:InstitutionalSecuritiesSegmentMemberms:UnderwritingMemberus-gaap:OperatingSegmentsMember2023-07-012023-09-300000895421ms:InstitutionalSecuritiesSegmentMemberms:UnderwritingMemberus-gaap:OperatingSegmentsMember2022-07-012022-09-300000895421ms:InstitutionalSecuritiesSegmentMemberms:UnderwritingMemberus-gaap:OperatingSegmentsMember2023-01-012023-09-300000895421ms:InstitutionalSecuritiesSegmentMemberms:UnderwritingMemberus-gaap:OperatingSegmentsMember2022-01-012022-09-300000895421us-gaap:InterestRateContractMember2023-07-012023-09-300000895421us-gaap:InterestRateContractMember2022-07-012022-09-300000895421us-gaap:InterestRateContractMember2023-01-012023-09-300000895421us-gaap:InterestRateContractMember2022-01-012022-09-300000895421us-gaap:ForeignExchangeContractMember2023-07-012023-09-300000895421us-gaap:ForeignExchangeContractMember2022-07-012022-09-300000895421us-gaap:ForeignExchangeContractMember2023-01-012023-09-300000895421us-gaap:ForeignExchangeContractMember2022-01-012022-09-300000895421ms:EquityAndIndexContractMember2023-07-012023-09-300000895421ms:EquityAndIndexContractMember2022-07-012022-09-300000895421ms:EquityAndIndexContractMember2023-01-012023-09-300000895421ms:EquityAndIndexContractMember2022-01-012022-09-300000895421ms:CommodityAndOtherContractsMember2023-07-012023-09-300000895421ms:CommodityAndOtherContractsMember2022-07-012022-09-300000895421ms:CommodityAndOtherContractsMember2023-01-012023-09-300000895421ms:CommodityAndOtherContractsMember2022-01-012022-09-300000895421us-gaap:CreditRiskContractMember2023-07-012023-09-300000895421us-gaap:CreditRiskContractMember2022-07-012022-09-300000895421us-gaap:CreditRiskContractMember2023-01-012023-09-300000895421us-gaap:CreditRiskContractMember2022-01-012022-09-300000895421srt:AmericasMember2023-07-012023-09-300000895421srt:AmericasMember2022-07-012022-09-300000895421srt:AmericasMember2023-01-012023-09-300000895421srt:AmericasMember2022-01-012022-09-300000895421us-gaap:EMEAMember2023-07-012023-09-300000895421us-gaap:EMEAMember2022-07-012022-09-300000895421us-gaap:EMEAMember2023-01-012023-09-300000895421us-gaap:EMEAMember2022-01-012022-09-300000895421srt:AsiaMember2023-07-012023-09-300000895421srt:AsiaMember2022-07-012022-09-300000895421srt:AsiaMember2023-01-012023-09-300000895421srt:AsiaMember2022-01-012022-09-300000895421ms:InstitutionalSecuritiesSegmentMember2023-09-300000895421ms:InstitutionalSecuritiesSegmentMember2022-12-310000895421ms:WealthManagementSegmentMember2023-09-300000895421ms:WealthManagementSegmentMember2022-12-31
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2023
Commission File Number 1-11758
(Exact name of Registrant as specified in its charter)
| | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | |
Delaware | 1585 Broadway | 36-3145972 | (212) | 761-4000 | |
(State or other jurisdiction of incorporation or organization) | New York, | NY | 10036 | (I.R.S. Employer Identification No.) | (Registrant’s telephone number, including area code) |
(Address of principal executive offices, including zip code) |
| | | | | | | | |
Securities registered pursuant to Section 12(b) of the Act: | | |
Title of each class | Trading Symbol(s) | Name of exchange on which registered |
Common Stock, $0.01 par value | MS | New York Stock Exchange |
Depositary Shares, each representing 1/1,000th interest in a share of Floating Rate | MS/PA | New York Stock Exchange |
Non-Cumulative Preferred Stock, Series A, $0.01 par value |
Depositary Shares, each representing 1/1,000th interest in a share of Fixed-to-Floating Rate | MS/PE | New York Stock Exchange |
Non-Cumulative Preferred Stock, Series E, $0.01 par value |
Depositary Shares, each representing 1/1,000th interest in a share of Fixed-to-Floating Rate | MS/PF | New York Stock Exchange |
Non-Cumulative Preferred Stock, Series F, $0.01 par value |
Depositary Shares, each representing 1/1,000th interest in a share of Fixed-to-Floating Rate | MS/PI | New York Stock Exchange |
Non-Cumulative Preferred Stock, Series I, $0.01 par value |
Depositary Shares, each representing 1/1,000th interest in a share of Fixed-to-Floating Rate | MS/PK | New York Stock Exchange |
Non-Cumulative Preferred Stock, Series K, $0.01 par value |
Depositary Shares, each representing 1/1,000th interest in a share of 4.875% | MS/PL | New York Stock Exchange |
Non-Cumulative Preferred Stock, Series L, $0.01 par value |
Depositary Shares, each representing 1/1,000th interest in a share of 4.250% | MS/PO | New York Stock Exchange |
Non-Cumulative Preferred Stock, Series O, $0.01 par value |
Depositary Shares, each representing 1/1,000th interest in a share of 6.500% | MS/PP | New York Stock Exchange |
Non-Cumulative Preferred Stock, Series P, $0.01 par value |
Global Medium-Term Notes, Series A, Fixed Rate Step-Up Senior Notes Due 2026 | MS/26C | New York Stock Exchange |
of Morgan Stanley Finance LLC (and Registrant’s guarantee with respect thereto) |
Global Medium-Term Notes, Series A, Floating Rate Notes Due 2029 | MS/29 | New York Stock Exchange |
of Morgan Stanley Finance LLC (and Registrant’s guarantee with respect thereto) |
Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐
Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). Yes ☒ No ☐
Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Large accelerated filer | ☒ | Accelerated filer | ☐ | Non-accelerated filer | ☐ | Smaller reporting company | ☐ | Emerging growth company | ☐ |
If an emerging growth company, indicate by check mark if the Registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒
As of October 31, 2023, there were 1,641,311,580 shares of the Registrant’s Common Stock, par value $0.01 per share, outstanding.
QUARTERLY REPORT ON FORM 10-Q
For the quarter ended September 30, 2023
| | | | | | | | | | | | | | |
Table of Contents | Part | Item | Page |
| I | | |
| I | 2 | | |
| | | |
| | | |
| | | |
| | | |