10-Q 1 ms-20220630.htm 10-Q ms-20220630
false2022Q20000895421--12-31MORGAN STANLEYtruefalsehttp://fasb.org/us-gaap/2022#AssetPledgedAsCollateralMember.00100008954212022-01-012022-06-300000895421us-gaap:CommonClassAMember2022-01-012022-06-300000895421us-gaap:SeriesAPreferredStockMember2022-01-012022-06-300000895421us-gaap:SeriesEPreferredStockMember2022-01-012022-06-300000895421us-gaap:SeriesFPreferredStockMember2022-01-012022-06-300000895421ms:SeriesIPreferredStockMember2022-01-012022-06-300000895421ms:SeriesKPreferredStockMember2022-01-012022-06-300000895421ms:SeriesLPreferredStockMember2022-01-012022-06-300000895421ms:SeriesOPreferredStockMember2022-01-012022-06-300000895421ms:SeriesPPreferredStockMember2022-01-012022-06-300000895421ms:GlobalMediumTermNotesSeriesAFixedRateStepUpSeniorNotesDue2026ofMorganStanleyFinanceLLCMember2022-01-012022-06-300000895421ms:GlobalMediumTermNotesSeriesAFloatingRateNotesDue2029OfMorganStanleyFinanceLLCMember2022-01-012022-06-3000008954212022-07-29xbrli:shares00008954212022-04-012022-06-30iso4217:USD00008954212021-04-012021-06-3000008954212021-01-012021-06-30iso4217:USDxbrli:shares00008954212022-06-3000008954212021-12-310000895421us-gaap:PreferredStockMember2022-03-310000895421us-gaap:PreferredStockMember2021-03-310000895421us-gaap:PreferredStockMember2021-12-310000895421us-gaap:PreferredStockMember2020-12-310000895421us-gaap:PreferredStockMember2022-04-012022-06-300000895421us-gaap:PreferredStockMember2021-04-012021-06-300000895421us-gaap:PreferredStockMember2022-01-012022-06-300000895421us-gaap:PreferredStockMember2021-01-012021-06-300000895421us-gaap:PreferredStockMember2022-06-300000895421us-gaap:PreferredStockMember2021-06-300000895421us-gaap:CommonStockMember2022-03-310000895421us-gaap:CommonStockMember2022-06-300000895421us-gaap:CommonStockMember2021-03-310000895421us-gaap:CommonStockMember2021-06-300000895421us-gaap:CommonStockMember2021-12-310000895421us-gaap:CommonStockMember2020-12-310000895421us-gaap:AdditionalPaidInCapitalMember2022-03-310000895421us-gaap:AdditionalPaidInCapitalMember2021-03-310000895421us-gaap:AdditionalPaidInCapitalMember2021-12-310000895421us-gaap:AdditionalPaidInCapitalMember2020-12-310000895421us-gaap:AdditionalPaidInCapitalMember2022-04-012022-06-300000895421us-gaap:AdditionalPaidInCapitalMember2021-04-012021-06-300000895421us-gaap:AdditionalPaidInCapitalMember2022-01-012022-06-300000895421us-gaap:AdditionalPaidInCapitalMember2021-01-012021-06-300000895421us-gaap:AdditionalPaidInCapitalMember2022-06-300000895421us-gaap:AdditionalPaidInCapitalMember2021-06-300000895421us-gaap:RetainedEarningsMember2022-03-310000895421us-gaap:RetainedEarningsMember2021-03-310000895421us-gaap:RetainedEarningsMember2021-12-310000895421us-gaap:RetainedEarningsMember2020-12-310000895421us-gaap:RetainedEarningsMember2022-04-012022-06-300000895421us-gaap:RetainedEarningsMember2021-04-012021-06-300000895421us-gaap:RetainedEarningsMember2022-01-012022-06-300000895421us-gaap:RetainedEarningsMember2021-01-012021-06-300000895421us-gaap:RetainedEarningsMember2022-06-300000895421us-gaap:RetainedEarningsMember2021-06-300000895421us-gaap:TrustForBenefitOfEmployeesMember2022-03-310000895421us-gaap:TrustForBenefitOfEmployeesMember2021-03-310000895421us-gaap:TrustForBenefitOfEmployeesMember2021-12-310000895421us-gaap:TrustForBenefitOfEmployeesMember2020-12-310000895421us-gaap:TrustForBenefitOfEmployeesMember2022-04-012022-06-300000895421us-gaap:TrustForBenefitOfEmployeesMember2021-04-012021-06-300000895421us-gaap:TrustForBenefitOfEmployeesMember2022-01-012022-06-300000895421us-gaap:TrustForBenefitOfEmployeesMember2021-01-012021-06-300000895421us-gaap:TrustForBenefitOfEmployeesMember2022-06-300000895421us-gaap:TrustForBenefitOfEmployeesMember2021-06-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-03-310000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-03-310000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-04-012022-06-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-04-012021-06-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-01-012022-06-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-01-012021-06-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-06-300000895421us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-06-300000895421us-gaap:TreasuryStockMember2022-03-310000895421us-gaap:TreasuryStockMember2021-03-310000895421us-gaap:TreasuryStockMember2021-12-310000895421us-gaap:TreasuryStockMember2020-12-310000895421us-gaap:TreasuryStockMember2022-04-012022-06-300000895421us-gaap:TreasuryStockMember2021-04-012021-06-300000895421us-gaap:TreasuryStockMember2022-01-012022-06-300000895421us-gaap:TreasuryStockMember2021-01-012021-06-300000895421us-gaap:TreasuryStockMember2022-06-300000895421us-gaap:TreasuryStockMember2021-06-300000895421ms:CommonStockIssuedToEmployeeTrustMember2022-03-310000895421ms:CommonStockIssuedToEmployeeTrustMember2021-03-310000895421ms:CommonStockIssuedToEmployeeTrustMember2021-12-310000895421ms:CommonStockIssuedToEmployeeTrustMember2020-12-310000895421ms:CommonStockIssuedToEmployeeTrustMember2022-04-012022-06-300000895421ms:CommonStockIssuedToEmployeeTrustMember2021-04-012021-06-300000895421ms:CommonStockIssuedToEmployeeTrustMember2022-01-012022-06-300000895421ms:CommonStockIssuedToEmployeeTrustMember2021-01-012021-06-300000895421ms:CommonStockIssuedToEmployeeTrustMember2022-06-300000895421ms:CommonStockIssuedToEmployeeTrustMember2021-06-300000895421us-gaap:NoncontrollingInterestMember2022-03-310000895421us-gaap:NoncontrollingInterestMember2021-03-310000895421us-gaap:NoncontrollingInterestMember2021-12-310000895421us-gaap:NoncontrollingInterestMember2020-12-310000895421us-gaap:NoncontrollingInterestMember2022-04-012022-06-300000895421us-gaap:NoncontrollingInterestMember2021-04-012021-06-300000895421us-gaap:NoncontrollingInterestMember2022-01-012022-06-300000895421us-gaap:NoncontrollingInterestMember2021-01-012021-06-300000895421us-gaap:NoncontrollingInterestMember2022-06-300000895421us-gaap:NoncontrollingInterestMember2021-06-3000008954212021-06-3000008954212020-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:USTreasuryAndGovernmentMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:USTreasuryAndGovernmentMember2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberms:MortgageAndAssetBackedSecuritiesMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MortgageAndAssetBackedSecuritiesMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Memberms:MortgageAndAssetBackedSecuritiesMember2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421ms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421ms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:USTreasuryAndGovernmentMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:USTreasuryAndGovernmentMember2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberms:MortgageAndAssetBackedSecuritiesMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MortgageAndAssetBackedSecuritiesMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Memberms:MortgageAndAssetBackedSecuritiesMember2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:FairValueInputsLevel1Memberms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421ms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421ms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel12And3Member2021-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialPortfolioSegmentMember2022-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialPortfolioSegmentMember2021-12-310000895421ms:SecuredLendingFacilitiesMemberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421ms:SecuredLendingFacilitiesMemberus-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:CommercialRealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:CommercialRealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ResidentialPortfolioSegmentMember2022-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ResidentialPortfolioSegmentMember2021-12-310000895421us-gaap:SeniorDebtObligationsMemberms:SecuritiesBasedLendingandOtherLoansMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:SeniorDebtObligationsMemberms:SecuritiesBasedLendingandOtherLoansMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421ms:AccountsReceivableAndOtherReceivablesNetMemberus-gaap:FutureMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421ms:AccountsReceivableAndOtherReceivablesNetMemberus-gaap:FutureMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MortgageAndAssetBackedSecuritiesMember2022-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MortgageAndAssetBackedSecuritiesMember2021-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MortgageAndAssetBackedSecuritiesMember2020-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MortgageAndAssetBackedSecuritiesMember2022-04-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MortgageAndAssetBackedSecuritiesMember2021-04-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MortgageAndAssetBackedSecuritiesMember2022-01-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MortgageAndAssetBackedSecuritiesMember2021-01-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MortgageAndAssetBackedSecuritiesMember2021-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:SeniorDebtObligationsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421ms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberms:CorporateEquitiesMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMember2022-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMember2021-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMember2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMember2020-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMember2022-04-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMember2021-04-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMember2022-01-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMember2021-01-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InvestmentsMember2021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:DepositsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:NonderivativeTradingLiabilitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421ms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421ms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421ms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421ms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421ms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421ms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421ms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421ms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:OtherSecuredFinancingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2022-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2021-03-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2020-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:BorrowingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-04-012021-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-03-310000895421srt:MinimumMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-30xbrli:pure0000895421ms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:SeniorDebtObligationsMemberms:ValuationTechniqueMarginLoanMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputMarginLoanMember2022-06-300000895421us-gaap:SeniorDebtObligationsMemberms:ValuationTechniqueMarginLoanMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputMarginLoanMember2022-06-300000895421srt:WeightedAverageMemberus-gaap:SeniorDebtObligationsMemberms:ValuationTechniqueMarginLoanMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputMarginLoanMember2022-06-300000895421srt:MinimumMemberus-gaap:SeniorDebtObligationsMemberms:ValuationTechniqueMarginLoanMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputMarginLoanMember2021-12-310000895421us-gaap:SeniorDebtObligationsMemberms:ValuationTechniqueMarginLoanMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputMarginLoanMember2021-12-310000895421srt:WeightedAverageMemberus-gaap:SeniorDebtObligationsMemberms:ValuationTechniqueMarginLoanMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputMarginLoanMember2021-12-310000895421srt:MinimumMemberus-gaap:SeniorDebtObligationsMemberms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:SeniorDebtObligationsMemberms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberus-gaap:SeniorDebtObligationsMemberms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberus-gaap:SeniorDebtObligationsMemberms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:SeniorDebtObligationsMemberms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberus-gaap:SeniorDebtObligationsMemberms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberms:ValuationTechniqueComparablePricingMemberms:MeasurementInputBondPriceMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:MeasurementInputLossGivenDefaultMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputLossGivenDefaultMembersrt:MaximumMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputLossGivenDefaultMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputLossGivenDefaultMembersrt:MedianMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:MeasurementInputLossGivenDefaultMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputLossGivenDefaultMembersrt:MaximumMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputLossGivenDefaultMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputLossGivenDefaultMembersrt:MedianMemberms:CorporateandOtherDebtSecuritiesMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:MeasurementInputSharePriceMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:MeasurementInputSharePriceMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MaximumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MaximumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberms:MeasurementInputWeightedAverageCostOfCapitalMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MaximumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MaximumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputExitMultipleMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:MeasurementInputEbitdaMultipleMembersrt:MinimumMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:MeasurementInputEbitdaMultipleMembersrt:WeightedAverageMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:MeasurementInputEbitdaMultipleMembersrt:MinimumMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:MeasurementInputEbitdaMultipleMembersrt:WeightedAverageMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:MeasurementInputSharePriceMembersrt:MinimumMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:MeasurementInputSharePriceMemberms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:MeasurementInputSharePriceMembersrt:WeightedAverageMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:MeasurementInputSharePriceMembersrt:MinimumMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:MeasurementInputSharePriceMemberms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:MeasurementInputSharePriceMembersrt:WeightedAverageMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMember2022-06-300000895421us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMember2021-12-310000895421srt:MinimumMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateVolatilitySkewMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputInterestRateVolatilitySkewMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateCurveCorrelationMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputInterestRateCurveCorrelationMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:MeasurementInputBondVolatilityMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputBondVolatilityMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputBondVolatilityMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputBondVolatilityMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInflationVolatilityMember2022-06-300000895421srt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInflationVolatilityMember2022-06-300000895421us-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInflationVolatilityMember2022-06-300000895421us-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInflationVolatilityMember2022-06-300000895421srt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInflationVolatilityMember2021-12-310000895421srt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInflationVolatilityMember2021-12-310000895421us-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInflationVolatilityMember2021-12-310000895421us-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Memberms:MeasurementInputInflationVolatilityMember2021-12-310000895421ms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberms:MeasurementInputCashSyntheticBasisMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberms:MeasurementInputCashSyntheticBasisMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMembersrt:WeightedAverageMemberms:CreditDefaultSwapModelMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMembersrt:MaximumMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMembersrt:WeightedAverageMemberms:CreditDefaultSwapModelMemberms:MeasurementInputBondPriceMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMembersrt:MaximumMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMembersrt:WeightedAverageMemberms:CreditDefaultSwapModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMembersrt:MaximumMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMembersrt:WeightedAverageMemberms:CreditDefaultSwapModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberms:MeasurementInputFundingSpreadMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberms:MeasurementInputFundingSpreadMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMembersrt:WeightedAverageMemberms:CreditDefaultSwapModelMemberms:MeasurementInputFundingSpreadMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:CreditRiskContractMembersrt:MinimumMemberms:CreditDefaultSwapModelMemberms:MeasurementInputFundingSpreadMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMemberms:CreditDefaultSwapModelMemberms:MeasurementInputFundingSpreadMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:CreditRiskContractMembersrt:WeightedAverageMemberms:CreditDefaultSwapModelMemberms:MeasurementInputFundingSpreadMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMembersrt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMembersrt:MinimumMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputInterestRateVolatilitySkewMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMembersrt:MinimumMemberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputInterestRateCurveMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMembersrt:MinimumMemberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputInterestRateCurveMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputInterestRateCurveMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMembersrt:MinimumMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputForeignExchangeVolatilitySkewMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMembersrt:MinimumMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputForeignExchangeVolatilitySkewMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputForeignExchangeVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ForeignExchangeContractMembersrt:MinimumMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputContingencyProbabilityMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ForeignExchangeContractMemberms:MeasurementInputContingencyProbabilityMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:EquityContractMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:EquityContractMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:EquityContractMemberms:MeasurementInputEquityVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:EquityContractMemberms:MeasurementInputEquityVolatilitySkewMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberus-gaap:EquityContractMemberms:MeasurementInputEquityVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberus-gaap:EquityContractMemberms:MeasurementInputEquityVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:EquityContractMemberms:MeasurementInputEquityVolatilitySkewMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberus-gaap:EquityContractMemberms:MeasurementInputEquityVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputEquityCorrelationMembersrt:MinimumMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputEquityCorrelationMemberus-gaap:EquityContractMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputEquityCorrelationMembersrt:WeightedAverageMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputEquityCorrelationMembersrt:MinimumMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputEquityCorrelationMemberus-gaap:EquityContractMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputEquityCorrelationMembersrt:WeightedAverageMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:EquityContractMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:EquityContractMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:EquityContractMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateCorrelationMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberus-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:EquityContractMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:EquityContractMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateCorrelationMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:MeasurementInputForwardPowerPriceMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-30iso4217:USDms:MWh0000895421ms:MeasurementInputForwardPowerPriceMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberms:MeasurementInputForwardPowerPriceMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:MeasurementInputForwardPowerPriceMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputForwardPowerPriceMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberms:MeasurementInputForwardPowerPriceMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputCommodityVolatilityMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:MeasurementInputCrossCommodityCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputCrossCommodityCorrelationMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberms:MeasurementInputCrossCommodityCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:MeasurementInputCrossCommodityCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputCrossCommodityCorrelationMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberms:MeasurementInputCrossCommodityCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:MeasurementInputSharePriceMemberms:ValuationTechniqueComparablePricingMemberms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:MeasurementInputSharePriceMemberms:ValuationTechniqueComparablePricingMemberms:CorporateEquitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:MeasurementInputFundingSpreadMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputFundingSpreadMembersrt:MaximumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberms:MeasurementInputFundingSpreadMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:MeasurementInputFundingSpreadMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputFundingSpreadMembersrt:MaximumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberms:MeasurementInputFundingSpreadMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMembersrt:MaximumMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberms:MeasurementInputLoanPriceMemberms:ValuationTechniqueComparablePricingMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberus-gaap:ValuationTechniqueOptionPricingModelMemberms:MeasurementInputEquityVolatilityMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:MeasurementInputEquityVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputEquityVolatilitySkewMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberms:MeasurementInputEquityVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:MeasurementInputEquityVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputEquityVolatilitySkewMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberms:MeasurementInputEquityVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputEquityCorrelationMembersrt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputEquityCorrelationMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputEquityCorrelationMembersrt:WeightedAverageMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputEquityCorrelationMembersrt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputEquityCorrelationMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:MeasurementInputEquityCorrelationMembersrt:WeightedAverageMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputEquityForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberms:MeasurementInputInterestRateForeignExchangeCorrelationMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateCurveCorrelationMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateCurveCorrelationMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateVolatilitySkewMembersrt:MaximumMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:FairValueMeasurementsRecurringMembersrt:ArithmeticAverageMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:MeasurementInputInterestRateVolatilitySkewMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MedianMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:ValuationTechniqueCorporateLoanModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:ValuationTechniqueCorporateLoanModelMembersrt:MaximumMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberms:ValuationTechniqueCorporateLoanModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:ValuationTechniqueCorporateLoanModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:ValuationTechniqueCorporateLoanModelMembersrt:MaximumMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberms:ValuationTechniqueCorporateLoanModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:MinimumMemberms:ValuationTechniqueWarehouseModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:ValuationTechniqueWarehouseModelMembersrt:MaximumMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:WeightedAverageMemberms:ValuationTechniqueWarehouseModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421srt:MinimumMemberms:ValuationTechniqueWarehouseModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:ValuationTechniqueWarehouseModelMembersrt:MaximumMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421srt:WeightedAverageMemberms:ValuationTechniqueWarehouseModelMemberus-gaap:MeasurementInputCreditSpreadMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:PrivateEquityFundsMember2022-06-300000895421us-gaap:PrivateEquityFundsMember2021-12-310000895421us-gaap:RealEstateFundsMember2022-06-300000895421us-gaap:RealEstateFundsMember2021-12-310000895421us-gaap:HedgeFundsMember2022-06-300000895421us-gaap:HedgeFundsMember2021-12-310000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:FairValueMeasurementsNonrecurringMember2022-06-300000895421us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:FairValueMeasurementsNonrecurringMember2021-12-310000895421ms:LendingCommitmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-04-012022-06-300000895421ms:LendingCommitmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-04-012021-06-300000895421ms:LendingCommitmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-06-300000895421ms:LendingCommitmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-01-012021-06-300000895421us-gaap:GoodwillMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-04-012022-06-300000895421us-gaap:GoodwillMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-04-012021-06-300000895421us-gaap:GoodwillMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-06-300000895421us-gaap:GoodwillMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-01-012021-06-300000895421ms:IntangibleAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-04-012022-06-300000895421ms:IntangibleAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-04-012021-06-300000895421ms:IntangibleAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-06-300000895421ms:IntangibleAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-01-012021-06-300000895421us-gaap:OtherInvestmentsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-04-012022-06-300000895421us-gaap:OtherInvestmentsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-04-012021-06-300000895421us-gaap:OtherInvestmentsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-06-300000895421us-gaap:OtherInvestmentsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-01-012021-06-300000895421ms:PropertyPlantAndEquipmentAndCapitalizedSoftwareCostsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-04-012022-06-300000895421ms:PropertyPlantAndEquipmentAndCapitalizedSoftwareCostsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-04-012021-06-300000895421ms:PropertyPlantAndEquipmentAndCapitalizedSoftwareCostsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-06-300000895421ms:PropertyPlantAndEquipmentAndCapitalizedSoftwareCostsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-01-012021-06-300000895421ms:ROUAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-04-012022-06-300000895421ms:ROUAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-04-012021-06-300000895421ms:ROUAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-06-300000895421ms:ROUAssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-01-012021-06-300000895421us-gaap:AssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-04-012022-06-300000895421us-gaap:AssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-04-012021-06-300000895421us-gaap:AssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-06-300000895421us-gaap:AssetsMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-01-012021-06-300000895421us-gaap:OtherLiabilitiesMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-04-012022-06-300000895421us-gaap:OtherLiabilitiesMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-04-012021-06-300000895421us-gaap:OtherLiabilitiesMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-06-300000895421us-gaap:OtherLiabilitiesMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-01-012021-06-300000895421us-gaap:LiabilityMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-04-012022-06-300000895421us-gaap:LiabilityMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-04-012021-06-300000895421us-gaap:LiabilityMemberus-gaap:FairValueMeasurementsNonrecurringMember2022-01-012022-06-300000895421us-gaap:LiabilityMemberus-gaap:FairValueMeasurementsNonrecurringMember2021-01-012021-06-300000895421us-gaap:PortionAtOtherThanFairValueFairValueDisclosureMember2022-06-300000895421us-gaap:FairValueInputsLevel1Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-06-300000895421us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421us-gaap:EstimateOfFairValueFairValueDisclosureMember2022-06-300000895421us-gaap:PortionAtOtherThanFairValueFairValueDisclosureMember2021-12-310000895421us-gaap:FairValueInputsLevel1Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2021-12-310000895421us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421us-gaap:EstimateOfFairValueFairValueDisclosureMember2021-12-310000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:EquityContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:InterestRateContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421ms:CommodityAndOtherContractsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:CreditRiskContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310000895421us-gaap:TradingRevenueMemberus-gaap:DebtMember2022-04-012022-06-300000895421us-gaap:TradingRevenueMemberus-gaap:DebtMember2021-04-012021-06-300000895421us-gaap:TradingRevenueMemberus-gaap:DebtMember2022-01-012022-06-300000895421us-gaap:TradingRevenueMemberus-gaap:DebtMember2021-01-012021-06-300000895421us-gaap:DebtMemberus-gaap:InterestExpenseMember2022-04-012022-06-300000895421us-gaap:DebtMemberus-gaap:InterestExpenseMember2021-04-012021-06-300000895421us-gaap:DebtMemberus-gaap:InterestExpenseMember2022-01-012022-06-300000895421us-gaap:DebtMemberus-gaap:InterestExpenseMember2021-01-012021-06-300000895421us-gaap:DebtMember2022-04-012022-06-300000895421us-gaap:DebtMember2021-04-012021-06-300000895421us-gaap:DebtMember2022-01-012022-06-300000895421us-gaap:DebtMember2021-01-012021-06-300000895421us-gaap:TradingRevenueMemberms:LoansAndOtherReceivablesMember2022-04-012022-06-300000895421ms:LoansAndOtherReceivablesMemberus-gaap:OtherComprehensiveIncomeMember2022-04-012022-06-300000895421us-gaap:TradingRevenueMemberms:LoansAndOtherReceivablesMember2021-04-012021-06-300000895421ms:LoansAndOtherReceivablesMemberus-gaap:OtherComprehensiveIncomeMember2021-04-012021-06-300000895421us-gaap:TradingRevenueMemberus-gaap:WrittenLoanCommitmentFairValueOptionMember2022-04-012022-06-300000895421us-gaap:WrittenLoanCommitmentFairValueOptionMemberus-gaap:OtherComprehensiveIncomeMember2022-04-012022-06-300000895421us-gaap:TradingRevenueMemberus-gaap:WrittenLoanCommitmentFairValueOptionMember2021-04-012021-06-300000895421us-gaap:WrittenLoanCommitmentFairValueOptionMemberus-gaap:OtherComprehensiveIncomeMember2021-04-012021-06-300000895421us-gaap:DepositsMemberus-gaap:TradingRevenueMember2022-04-012022-06-300000895421us-gaap:DepositsMemberus-gaap:OtherComprehensiveIncomeMember2022-04-012022-06-300000895421us-gaap:DepositsMemberus-gaap:TradingRevenueMember2021-04-012021-06-300000895421us-gaap:DepositsMemberus-gaap:OtherComprehensiveIncomeMember2021-04-012021-06-300000895421us-gaap:DebtMemberus-gaap:OtherComprehensiveIncomeMember2022-04-012022-06-300000895421us-gaap:DebtMemberus-gaap:OtherComprehensiveIncomeMember2021-04-012021-06-300000895421us-gaap:TradingRevenueMemberms:LoansAndOtherReceivablesMember2022-01-012022-06-300000895421ms:LoansAndOtherReceivablesMemberus-gaap:OtherComprehensiveIncomeMember2022-01-012022-06-300000895421us-gaap:TradingRevenueMemberms:LoansAndOtherReceivablesMember2021-01-012021-06-300000895421ms:LoansAndOtherReceivablesMemberus-gaap:OtherComprehensiveIncomeMember2021-01-012021-06-300000895421us-gaap:TradingRevenueMemberus-gaap:WrittenLoanCommitmentFairValueOptionMember2022-01-012022-06-300000895421us-gaap:WrittenLoanCommitmentFairValueOptionMemberus-gaap:OtherComprehensiveIncomeMember2022-01-012022-06-300000895421us-gaap:TradingRevenueMemberus-gaap:WrittenLoanCommitmentFairValueOptionMember2021-01-012021-06-300000895421us-gaap:WrittenLoanCommitmentFairValueOptionMemberus-gaap:OtherComprehensiveIncomeMember2021-01-012021-06-300000895421us-gaap:DepositsMemberus-gaap:TradingRevenueMember2022-01-012022-06-300000895421us-gaap:DepositsMemberus-gaap:OtherComprehensiveIncomeMember2022-01-012022-06-300000895421us-gaap:DepositsMemberus-gaap:TradingRevenueMember2021-01-012021-06-300000895421us-gaap:DepositsMemberus-gaap:OtherComprehensiveIncomeMember2021-01-012021-06-300000895421us-gaap:DebtMemberus-gaap:OtherComprehensiveIncomeMember2022-01-012022-06-300000895421us-gaap:DebtMemberus-gaap:OtherComprehensiveIncomeMember2021-01-012021-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberus-gaap:OverTheCounterMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberus-gaap:ExchangeClearedMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberus-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:OverTheCounterMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:ExchangeClearedMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OverTheCounterMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ExchangeClearedMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:OverTheCounterMemberus-gaap:CreditRiskContractMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:ExchangeClearedMemberus-gaap:CreditRiskContractMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMemberus-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMember2022-06-300000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2022-06-300000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2022-06-300000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMemberus-gaap:CreditRiskContractMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMemberus-gaap:CreditRiskContractMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMemberus-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMember2022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMemberus-gaap:EquityContractMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMemberus-gaap:EquityContractMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:EquityContractMemberus-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:EquityContractMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMemberms:CommodityAndOtherContractsMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMemberms:CommodityAndOtherContractsMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberms:CommodityAndOtherContractsMemberus-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberms:CommodityAndOtherContractsMember2022-06-300000895421us-gaap:NondesignatedMemberus-gaap:OverTheCounterMember2022-06-300000895421us-gaap:NondesignatedMemberus-gaap:ExchangeClearedMember2022-06-300000895421us-gaap:NondesignatedMemberus-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:NondesignatedMember2022-06-300000895421us-gaap:OverTheCounterMember2022-06-300000895421us-gaap:ExchangeClearedMember2022-06-300000895421us-gaap:ExchangeTradedMember2022-06-300000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberus-gaap:OverTheCounterMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberus-gaap:ExchangeClearedMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMemberus-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:OverTheCounterMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:ExchangeClearedMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMemberus-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OverTheCounterMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ExchangeClearedMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:DesignatedAsHedgingInstrumentMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:OverTheCounterMemberus-gaap:CreditRiskContractMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:ExchangeClearedMemberus-gaap:CreditRiskContractMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMemberus-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMember2021-12-310000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2021-12-310000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2021-12-310000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:InterestRateContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMemberus-gaap:CreditRiskContractMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMemberus-gaap:CreditRiskContractMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMemberus-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:CreditRiskContractMember2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMember2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMember2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:ForeignExchangeContractMemberus-gaap:NotDesignatedAsHedgingInstrumentTradingMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMemberus-gaap:EquityContractMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMemberus-gaap:EquityContractMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:EquityContractMemberus-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:EquityContractMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:OverTheCounterMemberms:CommodityAndOtherContractsMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberus-gaap:ExchangeClearedMemberms:CommodityAndOtherContractsMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberms:CommodityAndOtherContractsMemberus-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentTradingMemberms:CommodityAndOtherContractsMember2021-12-310000895421us-gaap:NondesignatedMemberus-gaap:OverTheCounterMember2021-12-310000895421us-gaap:NondesignatedMemberus-gaap:ExchangeClearedMember2021-12-310000895421us-gaap:NondesignatedMemberus-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:NondesignatedMember2021-12-310000895421us-gaap:OverTheCounterMember2021-12-310000895421us-gaap:ExchangeClearedMember2021-12-310000895421us-gaap:ExchangeTradedMember2021-12-310000895421us-gaap:FairValueHedgingMemberus-gaap:InterestRateContractMemberus-gaap:InterestIncomeMember2022-04-012022-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestRateContractMemberus-gaap:InterestIncomeMember2021-04-012021-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestRateContractMemberus-gaap:InterestIncomeMember2022-01-012022-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestRateContractMemberus-gaap:InterestIncomeMember2021-01-012021-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:InterestIncomeMember2022-04-012022-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:InterestIncomeMember2021-04-012021-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:InterestIncomeMember2022-01-012022-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:AvailableforsaleSecuritiesMemberus-gaap:InterestIncomeMember2021-01-012021-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2022-04-012022-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2021-04-012021-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2022-01-012022-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2021-01-012021-06-300000895421us-gaap:DepositsMemberus-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMember2022-04-012022-06-300000895421us-gaap:DepositsMemberus-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMember2021-04-012021-06-300000895421us-gaap:DepositsMemberus-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMember2022-01-012022-06-300000895421us-gaap:DepositsMemberus-gaap:FairValueHedgingMemberus-gaap:InterestExpenseMember2021-01-012021-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:BorrowingsMemberus-gaap:InterestExpenseMember2022-04-012022-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:BorrowingsMemberus-gaap:InterestExpenseMember2021-04-012021-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:BorrowingsMemberus-gaap:InterestExpenseMember2022-01-012022-06-300000895421us-gaap:FairValueHedgingMemberus-gaap:BorrowingsMemberus-gaap:InterestExpenseMember2021-01-012021-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMember2022-04-012022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMember2021-04-012021-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMember2022-01-012022-06-300000895421us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMember2021-01-012021-06-300000895421us-gaap:AvailableforsaleSecuritiesMember2022-06-300000895421us-gaap:AvailableforsaleSecuritiesMember2021-12-310000895421us-gaap:DepositsMember2022-06-300000895421us-gaap:DepositsMember2021-12-310000895421us-gaap:BorrowingsMember2022-06-300000895421us-gaap:BorrowingsMember2021-12-310000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMember2022-04-012022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMember2021-04-012021-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMember2022-01-012022-06-300000895421us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedgeMemberus-gaap:CreditRiskContractMember2021-01-012021-06-300000895421ms:DerivativeCreditRiskRelatedContingentFeaturesTriggeringCircumstancesOneNotchCreditRatingDowngradeMember2022-06-300000895421ms:DerivativeCreditRiskRelatedContingentFeaturestriggeringCircumstancesTwoNotchCreditRatingDowngradeMember2022-06-300000895421us-gaap:CollaborativeArrangementMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:InternalInvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:InternalNoninvestmentGradeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:InternalNoninvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:CreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:CreditDefaultSwapMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:CreditDefaultSwapMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberus-gaap:CreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:CreditDefaultSwapMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:OtherCreditDerivativesMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:OtherCreditDerivativesMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:OtherCreditDerivativesMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:OtherCreditDerivativesMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:OtherCreditDerivativesMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMember2022-06-300000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:InternalInvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:InternalNoninvestmentGradeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:InternalNoninvestmentGradeMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberms:TotalIndexAndBasketCreditDefaultSwapsMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:TotalIndexAndBasketCreditDefaultSwapsMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:CreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:CreditDefaultSwapMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:CreditDefaultSwapMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMemberus-gaap:CreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:CreditDefaultSwapMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:OtherCreditDerivativesMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:OtherCreditDerivativesMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:OtherCreditDerivativesMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:OtherCreditDerivativesMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberus-gaap:OtherCreditDerivativesMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:LessThanTwelveMonthsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2021-12-310000895421ms:CreditDerivativesSellingProtectionMember2021-12-310000895421us-gaap:CreditDefaultSwapBuyingProtectionMemberms:SingleNameCreditDefaultSwapMember2022-06-300000895421us-gaap:CreditDefaultSwapBuyingProtectionMemberms:SingleNameCreditDefaultSwapMember2021-12-310000895421ms:IndexAndBasketCreditDefaultSwapMemberus-gaap:CreditDefaultSwapBuyingProtectionMember2022-06-300000895421ms:IndexAndBasketCreditDefaultSwapMemberus-gaap:CreditDefaultSwapBuyingProtectionMember2021-12-310000895421ms:TranchedIndexAndBasketCreditDefaultSwapMemberus-gaap:CreditDefaultSwapBuyingProtectionMember2022-06-300000895421ms:TranchedIndexAndBasketCreditDefaultSwapMemberus-gaap:CreditDefaultSwapBuyingProtectionMember2021-12-310000895421us-gaap:CreditDefaultSwapBuyingProtectionMember2022-06-300000895421us-gaap:CreditDefaultSwapBuyingProtectionMember2021-12-310000895421us-gaap:CreditDefaultSwapBuyingProtectionMemberus-gaap:CreditDefaultSwapMember2022-06-300000895421us-gaap:CreditDefaultSwapBuyingProtectionMemberus-gaap:CreditDefaultSwapMember2021-12-310000895421us-gaap:USTreasurySecuritiesMember2022-06-300000895421us-gaap:USGovernmentAgenciesDebtSecuritiesMember2022-06-300000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2022-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMember2022-06-300000895421ms:AssetBackedSecuritiesFederalFamilyEducationLoanProgramMember2022-06-300000895421us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember2022-06-300000895421us-gaap:USTreasurySecuritiesMember2021-12-310000895421us-gaap:USGovernmentAgenciesDebtSecuritiesMember2021-12-310000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2021-12-310000895421us-gaap:USStatesAndPoliticalSubdivisionsMember2021-12-310000895421ms:AssetBackedSecuritiesFederalFamilyEducationLoanProgramMember2021-12-310000895421us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember2021-12-310000895421us-gaap:USTreasurySecuritiesMember2022-01-012022-06-300000895421us-gaap:USGovernmentAgenciesDebtSecuritiesMember2022-01-012022-06-300000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2022-01-012022-06-300000895421us-gaap:USStatesAndPoliticalSubdivisionsMember2022-01-012022-06-300000895421ms:AssetBackedSecuritiesFederalFamilyEducationLoanProgramMember2022-01-012022-06-300000895421us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember2022-01-012022-06-300000895421us-gaap:MaturityOvernightMember2022-06-300000895421us-gaap:MaturityUpTo30DaysMember2022-06-300000895421us-gaap:Maturity30To90DaysMember2022-06-300000895421us-gaap:MaturityOver90DaysMember2022-06-300000895421us-gaap:MaturityOvernightMember2021-12-310000895421us-gaap:MaturityUpTo30DaysMember2021-12-310000895421us-gaap:Maturity30To90DaysMember2021-12-310000895421us-gaap:MaturityOver90DaysMember2021-12-310000895421us-gaap:USTreasuryAndGovernmentMember2022-06-300000895421us-gaap:USTreasuryAndGovernmentMember2021-12-310000895421us-gaap:ForeignGovernmentDebtSecuritiesMember2022-06-300000895421us-gaap:ForeignGovernmentDebtSecuritiesMember2021-12-310000895421ms:CorporateEquitiesMember2022-06-300000895421ms:CorporateEquitiesMember2021-12-310000895421us-gaap:CollateralizedSecuritiesOtherMember2022-06-300000895421us-gaap:CollateralizedSecuritiesOtherMember2021-12-310000895421us-gaap:CommercialPortfolioSegmentMember2022-06-300000895421ms:SecuredLendingFacilitiesMember2022-06-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2022-06-300000895421us-gaap:ResidentialPortfolioSegmentMember2022-06-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2022-06-300000895421us-gaap:CommercialPortfolioSegmentMember2021-12-310000895421ms:SecuredLendingFacilitiesMember2021-12-310000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2021-12-310000895421us-gaap:ResidentialPortfolioSegmentMember2021-12-310000895421ms:SecuritiesBasedLendingandOtherLoansMember2021-12-310000895421us-gaap:InternalInvestmentGradeMemberus-gaap:CommercialPortfolioSegmentMember2022-06-300000895421us-gaap:InternalNoninvestmentGradeMemberus-gaap:CommercialPortfolioSegmentMember2022-06-300000895421us-gaap:InternalInvestmentGradeMemberus-gaap:CommercialPortfolioSegmentMember2021-12-310000895421us-gaap:InternalNoninvestmentGradeMemberus-gaap:CommercialPortfolioSegmentMember2021-12-310000895421ms:SecuredLendingFacilitiesMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421ms:SecuredLendingFacilitiesMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421ms:SecuredLendingFacilitiesMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421ms:SecuredLendingFacilitiesMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421us-gaap:CommercialRealEstatePortfolioSegmentMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421us-gaap:CommercialRealEstatePortfolioSegmentMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421ms:FICOScoreGreaterthanorEqualto740Memberus-gaap:ResidentialPortfolioSegmentMember2022-06-300000895421ms:FICOScoreBetween680and739Memberus-gaap:ResidentialPortfolioSegmentMember2022-06-300000895421ms:FICOScoreLessthan680Memberus-gaap:ResidentialPortfolioSegmentMember2022-06-300000895421us-gaap:ResidentialPortfolioSegmentMemberms:DebttoValueRatioLessthanorEqualto80PercentMember2022-06-300000895421ms:DebttoValueRatioGreaterthan80PercentMemberus-gaap:ResidentialPortfolioSegmentMember2022-06-300000895421ms:FICOScoreGreaterthanorEqualto740Memberus-gaap:ResidentialPortfolioSegmentMember2021-12-310000895421ms:FICOScoreBetween680and739Memberus-gaap:ResidentialPortfolioSegmentMember2021-12-310000895421ms:FICOScoreLessthan680Memberus-gaap:ResidentialPortfolioSegmentMember2021-12-310000895421us-gaap:ResidentialPortfolioSegmentMemberms:DebttoValueRatioLessthanorEqualto80PercentMember2021-12-310000895421ms:DebttoValueRatioGreaterthan80PercentMemberus-gaap:ResidentialPortfolioSegmentMember2021-12-310000895421ms:SecuritiesBasedLendingMember2022-06-300000895421us-gaap:InternalInvestmentGradeMemberms:OtherLoansMember2022-06-300000895421us-gaap:InternalNoninvestmentGradeMemberms:OtherLoansMember2022-06-300000895421ms:SecuritiesBasedLendingMember2021-12-310000895421us-gaap:InternalInvestmentGradeMemberms:OtherLoansMember2021-12-310000895421us-gaap:InternalNoninvestmentGradeMemberms:OtherLoansMember2021-12-310000895421ms:FinancialAssetPastDueMinusCurrentMemberus-gaap:CommercialPortfolioSegmentMember2022-06-300000895421ms:FinancialAssetPastDueMinusCurrentMemberus-gaap:CommercialPortfolioSegmentMember2021-12-310000895421ms:FinancialAssetPastDueMinusCurrentMemberus-gaap:ResidentialPortfolioSegmentMember2022-06-300000895421ms:FinancialAssetPastDueMinusCurrentMemberus-gaap:ResidentialPortfolioSegmentMember2021-12-310000895421ms:FinancialAssetPastDueMinusCurrentMember2022-06-300000895421ms:FinancialAssetPastDueMinusCurrentMember2021-12-310000895421us-gaap:CommercialPortfolioSegmentMember2022-01-012022-06-300000895421ms:SecuredLendingFacilitiesMember2022-01-012022-06-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2022-01-012022-06-300000895421us-gaap:ResidentialPortfolioSegmentMember2022-01-012022-06-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2022-01-012022-06-300000895421us-gaap:CommercialPortfolioSegmentMember2020-12-310000895421ms:SecuredLendingFacilitiesMember2020-12-310000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2020-12-310000895421us-gaap:ResidentialPortfolioSegmentMember2020-12-310000895421ms:SecuritiesBasedLendingandOtherLoansMember2020-12-310000895421us-gaap:CommercialPortfolioSegmentMember2021-01-012021-06-300000895421ms:SecuredLendingFacilitiesMember2021-01-012021-06-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2021-01-012021-06-300000895421us-gaap:ResidentialPortfolioSegmentMember2021-01-012021-06-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2021-01-012021-06-300000895421us-gaap:CommercialPortfolioSegmentMember2021-06-300000895421ms:SecuredLendingFacilitiesMember2021-06-300000895421us-gaap:CommercialRealEstatePortfolioSegmentMember2021-06-300000895421us-gaap:ResidentialPortfolioSegmentMember2021-06-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2021-06-300000895421ms:CurrentlyEmployedbytheFirmMember2022-06-300000895421ms:CurrentlyEmployedbytheFirmMember2021-12-310000895421ms:NoLongerEmployedbytheFirmMember2022-06-300000895421ms:NoLongerEmployedbytheFirmMember2021-12-3100008954212021-01-012021-12-310000895421ms:InvestmentManagementSegmentMember2022-06-300000895421ms:InvestmentManagementSegmentMember2021-12-310000895421ms:InvestmentManagementSegmentMember2022-04-012022-06-300000895421ms:InvestmentManagementSegmentMember2021-04-012021-06-300000895421ms:InvestmentManagementSegmentMember2022-01-012022-06-300000895421ms:InvestmentManagementSegmentMember2021-01-012021-06-300000895421ms:MitsubishiUfjMorganStanleySecuritiesCoLtdMember2022-04-012022-06-300000895421ms:MitsubishiUfjMorganStanleySecuritiesCoLtdMember2021-04-012021-06-300000895421ms:MitsubishiUfjMorganStanleySecuritiesCoLtdMember2022-01-012022-06-300000895421ms:MitsubishiUfjMorganStanleySecuritiesCoLtdMember2021-01-012021-06-300000895421us-gaap:CommercialLoanMember2022-06-300000895421ms:SecuredLendingFacilitiesMember2022-06-300000895421us-gaap:RealEstateMember2022-06-300000895421ms:SecuritiesBasedLendingandOtherLoansMember2022-06-300000895421ms:CommitmentsForwardStartingReverseRepurchaseAgreementsMember2022-06-300000895421ms:CentralCounterpartyCommitmentMember2022-06-300000895421ms:FirmCommitmentContractMember2022-06-300000895421ms:CommitmentsInvestmentActivitiesMember2022-06-300000895421ms:CommitmentsLettersOfCreditAndOtherFinancialGuaranteesObtainedToSatisfyCollateralRequirementsMember2022-06-300000895421us-gaap:DerivativeMemberms:LessThanTwelveMonthsFromBalanceSheetDateMember2022-06-300000895421us-gaap:DerivativeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2022-06-300000895421us-gaap:DerivativeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421us-gaap:DerivativeMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-06-300000895421us-gaap:DerivativeMember2022-06-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:StandbyLettersOfCreditMember2022-06-300000895421us-gaap:StandbyLettersOfCreditMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2022-06-300000895421us-gaap:StandbyLettersOfCreditMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:MoreThanFiveYearsFromBalanceSheetDateMemberus-gaap:StandbyLettersOfCreditMember2022-06-300000895421us-gaap:StandbyLettersOfCreditMember2022-06-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberus-gaap:MarketValueGuaranteeMember2022-06-300000895421ms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberus-gaap:MarketValueGuaranteeMember2022-06-300000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberus-gaap:MarketValueGuaranteeMember2022-06-300000895421ms:MoreThanFiveYearsFromBalanceSheetDateMemberus-gaap:MarketValueGuaranteeMember2022-06-300000895421us-gaap:MarketValueGuaranteeMember2022-06-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:LiquidityFacilitiesGuaranteeMember2022-06-300000895421ms:LiquidityFacilitiesGuaranteeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2022-06-300000895421ms:LiquidityFacilitiesGuaranteeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:MoreThanFiveYearsFromBalanceSheetDateMemberms:LiquidityFacilitiesGuaranteeMember2022-06-300000895421ms:LiquidityFacilitiesGuaranteeMember2022-06-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:WholeLoanSalesRepresentationsAndWarrantiesMember2022-06-300000895421ms:WholeLoanSalesRepresentationsAndWarrantiesMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2022-06-300000895421ms:WholeLoanSalesRepresentationsAndWarrantiesMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:MoreThanFiveYearsFromBalanceSheetDateMemberms:WholeLoanSalesRepresentationsAndWarrantiesMember2022-06-300000895421ms:WholeLoanSalesRepresentationsAndWarrantiesMember2022-06-300000895421ms:SecuritizationsRepresentationsAndGuaranteesMemberms:LessThanTwelveMonthsFromBalanceSheetDateMember2022-06-300000895421ms:SecuritizationsRepresentationsAndGuaranteesMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2022-06-300000895421ms:SecuritizationsRepresentationsAndGuaranteesMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:SecuritizationsRepresentationsAndGuaranteesMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:SecuritizationsRepresentationsAndGuaranteesMember2022-06-300000895421ms:LessThanTwelveMonthsFromBalanceSheetDateMemberms:GeneralPartnerGuaranteeMember2022-06-300000895421ms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMemberms:GeneralPartnerGuaranteeMember2022-06-300000895421ms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMemberms:GeneralPartnerGuaranteeMember2022-06-300000895421ms:MoreThanFiveYearsFromBalanceSheetDateMemberms:GeneralPartnerGuaranteeMember2022-06-300000895421ms:GeneralPartnerGuaranteeMember2022-06-300000895421ms:ClearingMemberGuaranteeMemberms:LessThanTwelveMonthsFromBalanceSheetDateMember2022-06-300000895421ms:ClearingMemberGuaranteeMemberms:MoreThanOneAndWithinThreeYearsFromBalanceSheetDateMember2022-06-300000895421ms:ClearingMemberGuaranteeMemberms:MoreThanThreeAndWithinFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:ClearingMemberGuaranteeMemberms:MoreThanFiveYearsFromBalanceSheetDateMember2022-06-300000895421ms:ClearingMemberGuaranteeMember2022-06-300000895421ms:CaseNumber153637AndCaseNumber154353Memberus-gaap:PendingLitigationMember2022-06-30iso4217:EUR0000895421ms:MortgageAndAssetBackedSecuritiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-06-300000895421ms:MortgageAndAssetBackedSecuritiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberms:InvestmentVehiclesMember2022-06-300000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberms:InvestmentVehiclesMember2021-12-310000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberms:OperatingEntitiesMember2022-06-300000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberms:OperatingEntitiesMember2021-12-310000895421ms:OtherVariableInterestsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-06-300000895421ms:OtherVariableInterestsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-06-300000895421us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310000895421ms:MortgageAndAssetBackedSecuritiesMember2022-06-300000895421us-gaap:CollateralizedDebtObligationsMember2022-06-300000895421ms:MunicipalTenderOptionBondsMember2022-06-300000895421us-gaap:StructuredFinanceMember2022-06-300000895421ms:OtherVariableInterestsMember2022-06-300000895421ms:MortgageAndAssetBackedSecuritiesMemberms:DebtandEquityInterestsMember2022-06-300000895421us-gaap:CollateralizedDebtObligationsMemberms:DebtandEquityInterestsMember2022-06-300000895421ms:MunicipalTenderOptionBondsMemberms:DebtandEquityInterestsMember2022-06-300000895421us-gaap:StructuredFinanceMemberms:DebtandEquityInterestsMember2022-06-300000895421ms:OtherVariableInterestsMemberms:DebtandEquityInterestsMember2022-06-300000895421us-gaap:DerivativeFinancialInstrumentsAssetsMemberms:MortgageAndAssetBackedSecuritiesMember2022-06-300000895421us-gaap:CollateralizedDebtObligationsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-06-300000895421ms:MunicipalTenderOptionBondsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-06-300000895421us-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:StructuredFinanceMember2022-06-300000895421us-gaap:DerivativeFinancialInstrumentsAssetsMemberms:OtherVariableInterestsMember2022-06-300000895421ms:MortgageAndAssetBackedSecuritiesMemberms:CommitmentsGuaranteesAndOtherMember2022-06-300000895421us-gaap:CollateralizedDebtObligationsMemberms:CommitmentsGuaranteesAndOtherMember2022-06-300000895421ms:MunicipalTenderOptionBondsMemberms:CommitmentsGuaranteesAndOtherMember2022-06-300000895421us-gaap:StructuredFinanceMemberms:CommitmentsGuaranteesAndOtherMember2022-06-300000895421ms:OtherVariableInterestsMemberms:CommitmentsGuaranteesAndOtherMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMemberms:DebtandEquityInterestsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CollateralizedDebtObligationsMemberms:DebtandEquityInterestsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMemberms:DebtandEquityInterestsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:StructuredFinanceMemberms:DebtandEquityInterestsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherVariableInterestsMemberms:DebtandEquityInterestsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberms:MortgageAndAssetBackedSecuritiesMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CollateralizedDebtObligationsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:StructuredFinanceMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberms:OtherVariableInterestsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:AssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CollateralizedDebtObligationsMemberus-gaap:AssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMemberus-gaap:AssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:AssetsMemberus-gaap:StructuredFinanceMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherVariableInterestsMemberus-gaap:AssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CollateralizedDebtObligationsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:StructuredFinanceMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherVariableInterestsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2022-06-300000895421ms:MortgageAndAssetBackedSecuritiesMember2021-12-310000895421us-gaap:CollateralizedDebtObligationsMember2021-12-310000895421ms:MunicipalTenderOptionBondsMember2021-12-310000895421us-gaap:StructuredFinanceMember2021-12-310000895421ms:OtherVariableInterestsMember2021-12-310000895421ms:MortgageAndAssetBackedSecuritiesMemberms:DebtandEquityInterestsMember2021-12-310000895421us-gaap:CollateralizedDebtObligationsMemberms:DebtandEquityInterestsMember2021-12-310000895421ms:MunicipalTenderOptionBondsMemberms:DebtandEquityInterestsMember2021-12-310000895421us-gaap:StructuredFinanceMemberms:DebtandEquityInterestsMember2021-12-310000895421ms:OtherVariableInterestsMemberms:DebtandEquityInterestsMember2021-12-310000895421us-gaap:DerivativeFinancialInstrumentsAssetsMemberms:MortgageAndAssetBackedSecuritiesMember2021-12-310000895421us-gaap:CollateralizedDebtObligationsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-12-310000895421ms:MunicipalTenderOptionBondsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-12-310000895421us-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:StructuredFinanceMember2021-12-310000895421us-gaap:DerivativeFinancialInstrumentsAssetsMemberms:OtherVariableInterestsMember2021-12-310000895421ms:MortgageAndAssetBackedSecuritiesMemberms:CommitmentsGuaranteesAndOtherMember2021-12-310000895421us-gaap:CollateralizedDebtObligationsMemberms:CommitmentsGuaranteesAndOtherMember2021-12-310000895421ms:MunicipalTenderOptionBondsMemberms:CommitmentsGuaranteesAndOtherMember2021-12-310000895421us-gaap:StructuredFinanceMemberms:CommitmentsGuaranteesAndOtherMember2021-12-310000895421ms:OtherVariableInterestsMemberms:CommitmentsGuaranteesAndOtherMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMemberms:DebtandEquityInterestsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CollateralizedDebtObligationsMemberms:DebtandEquityInterestsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMemberms:DebtandEquityInterestsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:StructuredFinanceMemberms:DebtandEquityInterestsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherVariableInterestsMemberms:DebtandEquityInterestsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberms:MortgageAndAssetBackedSecuritiesMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CollateralizedDebtObligationsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:StructuredFinanceMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberms:OtherVariableInterestsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:AssetsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CollateralizedDebtObligationsMemberus-gaap:AssetsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMemberus-gaap:AssetsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:AssetsMemberus-gaap:StructuredFinanceMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherVariableInterestsMemberus-gaap:AssetsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MortgageAndAssetBackedSecuritiesMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CollateralizedDebtObligationsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:MunicipalTenderOptionBondsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:StructuredFinanceMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherVariableInterestsMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecuritiesAssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecuritiesAssetsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CommercialMortgageBackedSecuritiesMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:SecuritiesAssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:SecuritiesAssetsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberus-gaap:SecuritiesAssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberus-gaap:SecuritiesAssetsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherConsumerAndCommercialLoansMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherConsumerAndCommercialLoansMemberus-gaap:SecuritiesAssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherConsumerAndCommercialLoansMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberms:OtherConsumerAndCommercialLoansMemberus-gaap:SecuritiesAssetsMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMember2022-06-300000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-12-310000895421us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMemberus-gaap:SecuritiesAssetsMember2021-12-310000895421us-gaap:ResidentialMortgageMemberms:SpecialPurposeEntitiesMember2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMember2022-06-300000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberms:SpecialPurposeEntitiesMember2022-06-300000895421ms:CreditLinkedNotesAndOtherMemberms:SpecialPurposeEntitiesMember2022-06-300000895421us-gaap:ResidentialMortgageMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421ms:CreditLinkedNotesAndOtherMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421us-gaap:ResidentialMortgageMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421ms:CreditLinkedNotesAndOtherMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421us-gaap:ResidentialMortgageMemberms:SpecialPurposeEntitiesMember2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMember2021-12-310000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberms:SpecialPurposeEntitiesMember2021-12-310000895421ms:CreditLinkedNotesAndOtherMemberms:SpecialPurposeEntitiesMember2021-12-310000895421us-gaap:ResidentialMortgageMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421ms:CreditLinkedNotesAndOtherMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421us-gaap:ResidentialMortgageMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421ms:CreditLinkedNotesAndOtherMemberms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:InternalInvestmentGradeMember2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalInvestmentGradeMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalInvestmentGradeMember2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:FairValueInputsLevel2Member2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-06-300000895421ms:SpecialPurposeEntitiesMember2022-06-300000895421ms:SpecialPurposeEntitiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:InternalInvestmentGradeMember2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalInvestmentGradeMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalInvestmentGradeMember2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:FairValueInputsLevel2Member2021-12-310000895421ms:SpecialPurposeEntitiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000895421ms:SpecialPurposeEntitiesMember2021-12-310000895421us-gaap:CommercialLoanMemberms:CollateralizedLoanObligationsEntitiesSponsoredByNonAffiliatesMember2022-04-012022-06-300000895421us-gaap:CommercialLoanMemberms:CollateralizedLoanObligationsEntitiesSponsoredByNonAffiliatesMember2021-04-012021-06-300000895421us-gaap:CommercialLoanMemberms:CollateralizedLoanObligationsEntitiesSponsoredByNonAffiliatesMember2022-01-012022-06-300000895421us-gaap:CommercialLoanMemberms:CollateralizedLoanObligationsEntitiesSponsoredByNonAffiliatesMember2021-01-012021-06-300000895421us-gaap:EquityContractMemberus-gaap:OverTheCounterMember2022-06-300000895421us-gaap:EquityContractMemberus-gaap:OverTheCounterMember2021-12-310000895421srt:MaximumMember2022-06-300000895421ms:MorganStanleyBankNationalAssociationMember2022-01-012022-06-300000895421ms:MorganStanleyBankNationalAssociationMember2022-06-300000895421ms:MorganStanleyBankNationalAssociationMember2021-12-310000895421ms:MorganStanleyPrivateBankNationalAssociationMember2022-01-012022-06-300000895421ms:MorganStanleyPrivateBankNationalAssociationMember2022-06-300000895421ms:MorganStanleyPrivateBankNationalAssociationMember2021-12-310000895421ms:MSAndCoMember2022-01-012022-06-300000895421ms:MSAndCoMember2022-06-300000895421ms:MSAndCoMember2021-12-310000895421us-gaap:SeriesAPreferredStockMember2022-06-300000895421us-gaap:SeriesAPreferredStockMember2021-12-310000895421us-gaap:SeriesCPreferredStockMember2022-06-300000895421us-gaap:SeriesCPreferredStockMember2021-12-310000895421us-gaap:SeriesEPreferredStockMember2022-06-300000895421us-gaap:SeriesEPreferredStockMember2021-12-310000895421us-gaap:SeriesFPreferredStockMember2022-06-300000895421us-gaap:SeriesFPreferredStockMember2021-12-310000895421ms:SeriesIPreferredStockMember2022-06-300000895421ms:SeriesIPreferredStockMember2021-12-310000895421ms:SeriesKPreferredStockMember2022-06-300000895421ms:SeriesKPreferredStockMember2021-12-310000895421ms:SeriesLPreferredStockMember2022-06-300000895421ms:SeriesLPreferredStockMember2021-12-310000895421ms:SeriesMPreferredStockMember2022-06-300000895421ms:SeriesMPreferredStockMember2021-12-310000895421ms:SeriesNPreferredStockMember2022-06-300000895421ms:SeriesNPreferredStockMember2021-12-310000895421ms:SeriesOPreferredStockMember2022-06-300000895421ms:SeriesOPreferredStockMember2021-12-310000895421us-gaap:SubsequentEventMemberms:SeriesPPreferredStockMember2022-08-022022-08-020000895421us-gaap:SubsequentEventMemberms:SeriesPPreferredStockMember2022-08-020000895421us-gaap:SubsequentEventMember2022-08-022022-08-020000895421us-gaap:SubsequentEventMember2022-08-0200008954212022-06-270000895421us-gaap:SeriesAPreferredStockMember2022-04-012022-06-300000895421us-gaap:SeriesAPreferredStockMember2021-04-012021-06-300000895421us-gaap:SeriesCPreferredStockMember2022-04-012022-06-300000895421us-gaap:SeriesCPreferredStockMember2021-04-012021-06-300000895421us-gaap:SeriesEPreferredStockMember2022-04-012022-06-300000895421us-gaap:SeriesEPreferredStockMember2021-04-012021-06-300000895421us-gaap:SeriesFPreferredStockMember2022-04-012022-06-300000895421us-gaap:SeriesFPreferredStockMember2021-04-012021-06-300000895421us-gaap:SeriesHPreferredStockMember2022-04-012022-06-300000895421us-gaap:SeriesHPreferredStockMember2021-04-012021-06-300000895421ms:SeriesIPreferredStockMember2022-04-012022-06-300000895421ms:SeriesIPreferredStockMember2021-04-012021-06-300000895421ms:SeriesKPreferredStockMember2022-04-012022-06-300000895421ms:SeriesKPreferredStockMember2021-04-012021-06-300000895421ms:SeriesLPreferredStockMember2022-04-012022-06-300000895421ms:SeriesLPreferredStockMember2021-04-012021-06-300000895421ms:SeriesOPreferredStockMember2022-04-012022-06-300000895421ms:SeriesOPreferredStockMember2021-04-012021-06-300000895421us-gaap:SeriesAPreferredStockMember2021-01-012021-06-300000895421us-gaap:SeriesCPreferredStockMember2022-01-012022-06-300000895421us-gaap:SeriesCPreferredStockMember2021-01-012021-06-300000895421us-gaap:SeriesEPreferredStockMember2021-01-012021-06-300000895421us-gaap:SeriesFPreferredStockMember2021-01-012021-06-300000895421us-gaap:SeriesHPreferredStockMember2022-01-012022-06-300000895421us-gaap:SeriesHPreferredStockMember2021-01-012021-06-300000895421ms:SeriesIPreferredStockMember2021-01-012021-06-300000895421ms:SeriesJPreferredStockMember2022-01-012022-06-300000895421ms:SeriesJPreferredStockMember2021-01-012021-06-300000895421ms:SeriesKPreferredStockMember2021-01-012021-06-300000895421ms:SeriesLPreferredStockMember2021-01-012021-06-300000895421ms:SeriesMPreferredStockMember2022-01-012022-06-300000895421ms:SeriesMPreferredStockMember2021-01-012021-06-300000895421ms:SeriesNPreferredStockMember2022-01-012022-06-300000895421ms:SeriesNPreferredStockMember2021-01-012021-06-300000895421ms:SeriesOPreferredStockMember2021-01-012021-06-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2022-03-310000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-03-310000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-03-310000895421ms:AOCIDebtValuationAdjustmentParentMember2022-03-310000895421us-gaap:AccumulatedTranslationAdjustmentMember2022-04-012022-06-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-04-012022-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-04-012022-06-300000895421ms:AOCIDebtValuationAdjustmentParentMember2022-04-012022-06-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2022-06-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-06-300000895421ms:AOCIDebtValuationAdjustmentParentMember2022-06-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2021-03-310000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-03-310000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-03-310000895421ms:AOCIDebtValuationAdjustmentParentMember2021-03-310000895421us-gaap:AccumulatedTranslationAdjustmentMember2021-04-012021-06-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-04-012021-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-04-012021-06-300000895421ms:AOCIDebtValuationAdjustmentParentMember2021-04-012021-06-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2021-06-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-06-300000895421ms:AOCIDebtValuationAdjustmentParentMember2021-06-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2021-12-310000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-12-310000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-12-310000895421ms:AOCIDebtValuationAdjustmentParentMember2021-12-310000895421us-gaap:AccumulatedTranslationAdjustmentMember2022-01-012022-06-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-01-012022-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-01-012022-06-300000895421ms:AOCIDebtValuationAdjustmentParentMember2022-01-012022-06-300000895421us-gaap:AccumulatedTranslationAdjustmentMember2020-12-310000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-12-310000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-12-310000895421ms:AOCIDebtValuationAdjustmentParentMember2020-12-310000895421us-gaap:AccumulatedTranslationAdjustmentMember2021-01-012021-06-300000895421us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-01-012021-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-01-012021-06-300000895421ms:AOCIDebtValuationAdjustmentParentMember2021-01-012021-06-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2022-04-012022-06-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2022-04-012022-06-300000895421us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-04-012022-06-300000895421us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2022-04-012022-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2022-04-012022-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentAttributableToNoncontrollingInterestMember2022-04-012022-06-300000895421ms:AOCIDebtValuationAdjustmentIncludingNoncontrollingInterestMember2022-04-012022-06-300000895421ms:AOCIDebtValuationAdjustmentNoncontrollingInterestMember2022-04-012022-06-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2021-04-012021-06-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2021-04-012021-06-300000895421us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2021-04-012021-06-300000895421us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2021-04-012021-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2021-04-012021-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentAttributableToNoncontrollingInterestMember2021-04-012021-06-300000895421ms:AOCIDebtValuationAdjustmentIncludingNoncontrollingInterestMember2021-04-012021-06-300000895421ms:AOCIDebtValuationAdjustmentNoncontrollingInterestMember2021-04-012021-06-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-06-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2022-01-012022-06-300000895421us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-06-300000895421us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2022-01-012022-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2022-01-012022-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentAttributableToNoncontrollingInterestMember2022-01-012022-06-300000895421ms:AOCIDebtValuationAdjustmentIncludingNoncontrollingInterestMember2022-01-012022-06-300000895421ms:AOCIDebtValuationAdjustmentNoncontrollingInterestMember2022-01-012022-06-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-06-300000895421us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2021-01-012021-06-300000895421us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-06-300000895421us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2021-01-012021-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2021-01-012021-06-300000895421us-gaap:AccumulatedDefinedBenefitPlansAdjustmentAttributableToNoncontrollingInterestMember2021-01-012021-06-300000895421ms:AOCIDebtValuationAdjustmentIncludingNoncontrollingInterestMember2021-01-012021-06-300000895421ms:AOCIDebtValuationAdjustmentNoncontrollingInterestMember2021-01-012021-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMember2022-04-012022-06-300000895421us-gaap:OperatingSegmentsMemberms:WealthManagementSegmentMember2022-04-012022-06-300000895421us-gaap:OperatingSegmentsMemberms:InvestmentManagementSegmentMember2022-04-012022-06-300000895421us-gaap:IntersegmentEliminationMember2022-04-012022-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMember2021-04-012021-06-300000895421us-gaap:OperatingSegmentsMemberms:WealthManagementSegmentMember2021-04-012021-06-300000895421us-gaap:OperatingSegmentsMemberms:InvestmentManagementSegmentMember2021-04-012021-06-300000895421us-gaap:IntersegmentEliminationMember2021-04-012021-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMember2022-01-012022-06-300000895421us-gaap:OperatingSegmentsMemberms:WealthManagementSegmentMember2022-01-012022-06-300000895421us-gaap:OperatingSegmentsMemberms:InvestmentManagementSegmentMember2022-01-012022-06-300000895421us-gaap:IntersegmentEliminationMember2022-01-012022-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMember2021-01-012021-06-300000895421us-gaap:OperatingSegmentsMemberms:WealthManagementSegmentMember2021-01-012021-06-300000895421us-gaap:OperatingSegmentsMemberms:InvestmentManagementSegmentMember2021-01-012021-06-300000895421us-gaap:IntersegmentEliminationMember2021-01-012021-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMemberus-gaap:InvestmentAdviceMember2022-04-012022-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMemberus-gaap:InvestmentAdviceMember2021-04-012021-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMemberus-gaap:InvestmentAdviceMember2022-01-012022-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMemberus-gaap:InvestmentAdviceMember2021-01-012021-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMemberms:UnderwritingMember2022-04-012022-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMemberms:UnderwritingMember2021-04-012021-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMemberms:UnderwritingMember2022-01-012022-06-300000895421ms:InstitutionalSecuritiesSegmentMemberus-gaap:OperatingSegmentsMemberms:UnderwritingMember2021-01-012021-06-300000895421us-gaap:InterestRateContractMember2022-04-012022-06-300000895421us-gaap:InterestRateContractMember2021-04-012021-06-300000895421us-gaap:InterestRateContractMember2022-01-012022-06-300000895421us-gaap:InterestRateContractMember2021-01-012021-06-300000895421us-gaap:ForeignExchangeContractMember2022-04-012022-06-300000895421us-gaap:ForeignExchangeContractMember2021-04-012021-06-300000895421us-gaap:ForeignExchangeContractMember2022-01-012022-06-300000895421us-gaap:ForeignExchangeContractMember2021-01-012021-06-300000895421ms:EquityAndIndexContractMember2022-04-012022-06-300000895421ms:EquityAndIndexContractMember2021-04-012021-06-300000895421ms:EquityAndIndexContractMember2022-01-012022-06-300000895421