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  <xsd:element id="cna_CarryingValueOfSecuritiesDepositedUnderRequirementsOfRegulatoryAuthorities" name="CarryingValueOfSecuritiesDepositedUnderRequirementsOfRegulatoryAuthorities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_CarryingValueOfTenLargestLimitedPartnerships" name="CarryingValueOfTenLargestLimitedPartnerships" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_CashAndSecuritiesDepositedAsCollateralForLettersOfCredit" name="CashAndSecuritiesDepositedAsCollateralForLettersOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_CatastropheLossesNetOfReinsurance" name="CatastropheLossesNetOfReinsurance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_CatastropheLossesNetOfReinsuranceAndIncludingReinstatementPremiums" name="CatastropheLossesNetOfReinsuranceAndIncludingReinstatementPremiums" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_CededClaimAndClaimAdjustmentExpenseReservesFuturePolicyBenefitsAndPolicyholderFundsAsResultOfSoldOperations" name="CededClaimAndClaimAdjustmentExpenseReservesFuturePolicyBenefitsAndPolicyholderFundsAsResultOfSoldOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_CededClaimAndClaimAdjustmentExpenses" name="CededClaimAndClaimAdjustmentExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_CededFuturePolicyBenefits" name="CededFuturePolicyBenefits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_CededPolicyholdersFunds" name="CededPolicyholdersFunds" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_CededPremiumsEarned" name="CededPremiumsEarned" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_ChangeInNetUnrealizedGainsOnOtherInvestments" name="ChangeInNetUnrealizedGainsOnOtherInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_ChangeInOtherInvestments" name="ChangeInOtherInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_ChangeInShortTermInvestments" name="ChangeInShortTermInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_ChangesInAbstract" name="ChangesInAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_ChangesInHeaderAbstract" name="ChangesInHeaderAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_ChangesInNetCashProvidedByUsedInOperatingInvestingAndFinancingActivities" name="ChangesInNetCashProvidedByUsedInOperatingInvestingAndFinancingActivities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_ClaimAndAllocatedClaimAdjustmentExpenseReservesUnderExistingThirdPartyReinsuranceContracts" name="ClaimAndAllocatedClaimAdjustmentExpenseReservesUnderExistingThirdPartyReinsuranceContracts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_ClaimAndClaimAdjustmentExpenseReservesAbstract" name="ClaimAndClaimAdjustmentExpenseReservesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_ClaimAndClaimAdjustmentExpenseReservesTextBlock" name="ClaimAndClaimAdjustmentExpenseReservesTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_CnaCommercialDomain" name="CnaCommercialDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_CnaCommercialMember" name="CnaCommercialMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_CnaSavingsPlanAbstract" name="CnaSavingsPlanAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_CnaSelectRiskMember" name="CnaSelectRiskMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_CnaSpecialtyDomain" name="CnaSpecialtyDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_CnaSpecialtyMember" name="CnaSpecialtyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_CollateralTrustEstablishedByNicoUnderAepLossPortfolioTransfer" name="CollateralTrustEstablishedByNicoUnderAepLossPortfolioTransfer" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_CombinedContinentalCasualtyCompaniesMember" name="CombinedContinentalCasualtyCompaniesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_CommercialInsuranceMember" name="CommercialInsuranceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_CommitmentsToPurchaseVariousPrivatelyPlacedDebtSecurities" name="CommitmentsToPurchaseVariousPrivatelyPlacedDebtSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_CommitmentsToSellVariousPrivatelyPlacedDebtSecurities" name="CommitmentsToSellVariousPrivatelyPlacedDebtSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_ComponentsOfOtherThanTemporaryImpairmentLossesRecognizedInEarningsByAssetTypeTableTextBlock" name="ComponentsOfOtherThanTemporaryImpairmentLossesRecognizedInEarningsByAssetTypeTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_CondensedConsolidatedStatementsOfCashFlowsAbstract" name="CondensedConsolidatedStatementsOfCashFlowsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_ConsolidatedStatementsOfComprehensiveIncomeAbstract" name="ConsolidatedStatementsOfComprehensiveIncomeAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_ContinentalCasualtyCompanyMember" name="ContinentalCasualtyCompanyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_ContractValueOfInvestmentContractLiabilityToBenefitPlan" name="ContractValueOfInvestmentContractLiabilityToBenefitPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_CumulativeForeignCurrencyTranslationAdjustmentPreTax" name="CumulativeForeignCurrencyTranslationAdjustmentPreTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_DebtAbstract" name="DebtAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_DecreaseInBasicAndDilutedEarningsPerShare" name="DecreaseInBasicAndDilutedEarningsPerShare" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_DecreaseInDeferredPolicyAcquisitionCostAmortizationExpense" name="DecreaseInDeferredPolicyAcquisitionCostAmortizationExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_DecreaseInDeferredPolicyAcquisitionCostsDueToNewAdoptedAccountingPolicy" name="DecreaseInDeferredPolicyAcquisitionCostsDueToNewAdoptedAccountingPolicy" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_DecreaseInIncomeTaxExpense" name="DecreaseInIncomeTaxExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_DeferredAcquistionCostsShadowAdjustment" name="DeferredAcquistionCostsShadowAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_DeferredTaxAssetsLifeSettlementContracts" name="DeferredTaxAssetsLifeSettlementContracts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationLongTermRateOfReturn" name="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationLongTermRateOfReturn" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_DefinedBenefitPlanForeignCurrencyTranslationAndOtherOnBenefitObligation" name="DefinedBenefitPlanForeignCurrencyTranslationAndOtherOnBenefitObligation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_DefinedBenefitPlanForeignCurrencyTranslationAndOtherOnPlanAssets" name="DefinedBenefitPlanForeignCurrencyTranslationAndOtherOnPlanAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_DerivativeAndOtherFinancialInstrumentsNetMember" name="DerivativeAndOtherFinancialInstrumentsNetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_DerivativeTransactionsEnteredInto" name="DerivativeTransactionsEnteredInto" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_DerivativeTransactionsTerminated" name="DerivativeTransactionsTerminated" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_DescriptionOfTransitionFromCnaPensionPlanToPostretirementPlan" name="DescriptionOfTransitionFromCnaPensionPlanToPostretirementPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_DirectAndCededEarnedPremiumsRelatedToBusinessThatIsOneHundredPercentReinsuredAsResultOfSignificantCaptiveProgram" name="DirectAndCededEarnedPremiumsRelatedToBusinessThatIsOneHundredPercentReinsuredAsResultOfSignificantCaptiveProgram" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_DirectPremiumsEarned" name="DirectPremiumsEarned" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_DiscountRateRiskPremium" name="DiscountRateRiskPremium" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_DiscountedCashFlowValuationMember" name="DiscountedCashFlowValuationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_DiscountedReservesForUnfundedStructureSettlementsDiscountAmount" name="DiscountedReservesForUnfundedStructureSettlementsDiscountAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_DiscountedReservesForUnfundedStructuredSettlements" name="DiscountedReservesForUnfundedStructuredSettlements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_DiscountedReservesForWorkersCompensationLifetimeClaimReservesAndAccidentAndHealthClaimReserves" name="DiscountedReservesForWorkersCompensationLifetimeClaimReservesAndAccidentAndHealthClaimReserves" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_DiscountedReservesForWorkersCompensationLifetimeClaimReservesAndAccidentAndHealthClaimReservesDiscountAmount" name="DiscountedReservesForWorkersCompensationLifetimeClaimReservesAndAccidentAndHealthClaimReservesDiscountAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_DispositionsAbstract" name="DispositionsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_DividendsReceivedFromSubsidiaries" name="DividendsReceivedFromSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_EquityInNetIncomeLossOfSubsidiaries" name="EquityInNetIncomeLossOfSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_EquityInOtherComprehensiveIncomeOfSubsidiaries" name="EquityInOtherComprehensiveIncomeOfSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_ExpectedCallDate" name="ExpectedCallDate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_FairValueAbstract" name="FairValueAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_FairValueOfCollateralTrustAccountEstablishedByNicoUnderAepLossPortfolioTransfer" name="FairValueOfCollateralTrustAccountEstablishedByNicoUnderAepLossPortfolioTransfer" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_FairValueOfNonIncomeFixedMaturitySecurity" name="FairValueOfNonIncomeFixedMaturitySecurity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_FairValueOfStockBasedAwardsVested" name="FairValueOfStockBasedAwardsVested" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_FederalIncomeTaxesReceivedFromPaidToLoewsAmount" name="FederalIncomeTaxesReceivedFromPaidToLoewsAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_FutureAdversePriorYearDevelopmentToResultInRetroactiveReinsuranceGain" name="FutureAdversePriorYearDevelopmentToResultInRetroactiveReinsuranceGain" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_FutureCapitalCallCommitments" name="FutureCapitalCallCommitments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_GrossAndNetCarriedClaimAndClaimAdjustmentExpenseReservesTableTextBlock" name="GrossAndNetCarriedClaimAndClaimAdjustmentExpenseReservesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_GrossWrittenPremiumsWrittenByHardy" name="GrossWrittenPremiumsWrittenByHardy" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_GuarantorObligationsMaximumExposureIndebtednessOfSubsidiaries" name="GuarantorObligationsMaximumExposureIndebtednessOfSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_GuarantyFundAndOtherInsuranceRelatedAssessmentsPolicyTextBlock" name="GuarantyFundAndOtherInsuranceRelatedAssessmentsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_GuarontorObligationsMaximumExposureSsas" name="GuarontorObligationsMaximumExposureSsas" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_HardyAbstract" name="HardyAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_HardyDomain" name="HardyDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_HardyMember" name="HardyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_HardyNetIncomeLossInAccordanceWithIfrs" name="HardyNetIncomeLossInAccordanceWithIfrs" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_HealthMember" name="HealthMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_ImpactOfLossPortfolioTransferOnConsolidatedCondensedStatementOfIncomeTextBlock" name="ImpactOfLossPortfolioTransferOnConsolidatedCondensedStatementOfIncomeTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_IncomeAsPercentageOfChangeInPartnershipEquityForAllLimitedPartnerships" name="IncomeAsPercentageOfChangeInPartnershipEquityForAllLimitedPartnerships" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_IncomeFromContinuingOperationsAttributableToCnaCommonStockholders" name="IncomeFromContinuingOperationsAttributableToCnaCommonStockholders" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_IncomeLossFromContinuingOperationsBeforeEquityMethodInvestments" name="IncomeLossFromContinuingOperationsBeforeEquityMethodInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_IncomeLossFromContinuingOperationsBeforeIncomeTaxesAndIncomeLossFromSubsidiaries" name="IncomeLossFromContinuingOperationsBeforeIncomeTaxesAndIncomeLossFromSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_IncomeTaxExpenseBenefitOnNetRealizedInvestmentGainsLosses" name="IncomeTaxExpenseBenefitOnNetRealizedInvestmentGainsLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_IncomeTaxExpenseBenefitOnOperatingIncomeLoss" name="IncomeTaxExpenseBenefitOnOperatingIncomeLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_IncomeTaxReconcilliationEquityInEarningsLossesOfConsolidatedSubsidiary" name="IncomeTaxReconcilliationEquityInEarningsLossesOfConsolidatedSubsidiary" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_IncomeTaxesAbstract" name="IncomeTaxesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_IncreaseDecreaseInPolicyholdersFundsPensionDepositGuaranteeLiability" name="IncreaseDecreaseInPolicyholdersFundsPensionDepositGuaranteeLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_IncreaseInDeferredTaxAssetsLiabilitiesNet" name="IncreaseInDeferredTaxAssetsLiabilitiesNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_IncreaseInInsuranceReservesFromUnlockedAssumptionsRelatedToPayoutAnnuityContracts" name="IncreaseInInsuranceReservesFromUnlockedAssumptionsRelatedToPayoutAnnuityContracts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_IncreaseInOtherCostAndExpenseOperating" name="IncreaseInOtherCostAndExpenseOperating" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_IncreaseInOtherNetRealizedInvestmentGains" name="IncreaseInOtherNetRealizedInvestmentGains" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_InsuranceClaimsAndPolicyholdersBenefits" name="InsuranceClaimsAndPolicyholdersBenefits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_InterestAccrualRateForCccSurplusNote" name="InterestAccrualRateForCccSurplusNote" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_InternationalCommercialMember" name="InternationalCommercialMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_InternationalSpecialtyMember" name="InternationalSpecialtyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_InvestmentContractsWithInsuranceCompanyMember" name="InvestmentContractsWithInsuranceCompanyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_InvestmentInSubsidiaries" name="InvestmentInSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_InvestmentIncomeIncludingRealizedGainsLossesOnTradingSecuritiesBeforeExpenses" name="InvestmentIncomeIncludingRealizedGainsLossesOnTradingSecuritiesBeforeExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_ItTransformationAbstract" name="ItTransformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_ItTransformationCost" name="ItTransformationCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_ItTransformationCostsBySegmentTableTextBlock" name="ItTransformationCostsBySegmentTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_ItTransformationDisclosureTextBlock" name="ItTransformationDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_LegalProceedingsAndContingentLiabilitiesAbstract" name="LegalProceedingsAndContingentLiabilitiesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_LiabilityForLongTermCareProductsInterestRateYearOfIssueMaximum" name="LiabilityForLongTermCareProductsInterestRateYearOfIssueMaximum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_LiabilityForLongTermCareProductsInterestRateYearOfIssueMinimum" name="LiabilityForLongTermCareProductsInterestRateYearOfIssueMinimum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_LiabilityForPayoutAnnuityContractsInterestRateYearOfIssueMaximum" name="LiabilityForPayoutAnnuityContractsInterestRateYearOfIssueMaximum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_LiabilityForPayoutAnnuityContractsInterestRateYearOfIssueMinimum" name="LiabilityForPayoutAnnuityContractsInterestRateYearOfIssueMinimum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCtaAndOther" name="LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCtaAndOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsAmortizationOfDiscount" name="LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsAmortizationOfDiscount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_LifeAndGroupNonCoreCorporateAndOtherNonCoreOperationsMember" name="LifeAndGroupNonCoreCorporateAndOtherNonCoreOperationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_LifeAndGroupNonCoreMember" name="LifeAndGroupNonCoreMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_LifeAnnuityMember" name="LifeAnnuityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_LifeCompanyMember" name="LifeCompanyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_LifeGroupNonCoreDomain" name="LifeGroupNonCoreDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_LifeInsuranceInforceAssumed" name="LifeInsuranceInforceAssumed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_LifeInsuranceInforceCeded" name="LifeInsuranceInforceCeded" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_LifeInsuranceInforceDirect" name="LifeInsuranceInforceDirect" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_LifeInsuranceInforceNet" name="LifeInsuranceInforceNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_LifeReserveDevelopmentInLifeCompanyMember" name="LifeReserveDevelopmentInLifeCompanyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_LifeSettlementContractsIncludedInOtherAssetsMember" name="LifeSettlementContractsIncludedInOtherAssetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_LimitedPartnershipEquityRelatedHedgeFundStrategyPlanAssets" name="LimitedPartnershipEquityRelatedHedgeFundStrategyPlanAssets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_LimitedPartnershipHedgeFundMultiStrategyPlanAssets" name="LimitedPartnershipHedgeFundMultiStrategyPlanAssets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_LimitedPartnershipHedgeFundStrategyDistressedInvestmentsPlanAssets" name="LimitedPartnershipHedgeFundStrategyDistressedInvestmentsPlanAssets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_LimitedPartnershipInvestments" name="LimitedPartnershipInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_LimitedPartnershipsInvestedInPrivateEquity" name="LimitedPartnershipsInvestedInPrivateEquity" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_LloydsSyndicateCapacityMember" name="LloydsSyndicateCapacityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_LossPortfolioTransferMember" name="LossPortfolioTransferMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_MarketableSecuritiesFixedMaturitiesAtAmortizedCost" name="MarketableSecuritiesFixedMaturitiesAtAmortizedCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_MaximumPotentialFutureLeasePaymentsAndOtherRelatedCostsUnderGuarantee" name="MaximumPotentialFutureLeasePaymentsAndOtherRelatedCostsUnderGuarantee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_MortalityAssumption" name="MortalityAssumption" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_MortgageLoanCommitments" name="MortgageLoanCommitments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_NetCaseReserves" name="NetCaseReserves" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_NetCashTransactionsFromContinuingOperationsToDiscontinuedOperations" name="NetCashTransactionsFromContinuingOperationsToDiscontinuedOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetCashTransactionsToDiscontinuedOperationsFromContinuingOperations" name="NetCashTransactionsToDiscontinuedOperationsFromContinuingOperations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetChangeInUnrealizedGainsLossesInInvestmentsTableTextBlock" name="NetChangeInUnrealizedGainsLossesInInvestmentsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_NetClaimAndAllocatedClaimAdjustmentExpenseReservesInDiscontinuedOperationsCededToNico" name="NetClaimAndAllocatedClaimAdjustmentExpenseReservesInDiscontinuedOperationsCededToNico" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_NetIbnrReserves" name="NetIbnrReserves" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_NetInvestmentIncomeAndGainsLossesOnTradingSecurities" name="NetInvestmentIncomeAndGainsLossesOnTradingSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetInvestmentIncomeTableTextBlock" name="NetInvestmentIncomeTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_NetOperatingIncomeLossAfterTaxAttributableToNoncontrollingInterests" name="NetOperatingIncomeLossAfterTaxAttributableToNoncontrollingInterests" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetOperatingIncomeLossFromContinuingOperationsAttributableToParent" name="NetOperatingIncomeLossFromContinuingOperationsAttributableToParent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentCommercialAuto" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentCommercialAuto" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentForCnaCommercialSegmentTableTextBlock" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentForCnaCommercialSegmentTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentForCnaSpecialtySegmentTableTextBlock" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentForCnaSpecialtySegmentTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentGeneralLiability" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentGeneralLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentMedicalProfessionalLiability" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentMedicalProfessionalLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentOther" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentOtherProfessionalLiability" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentOtherProfessionalLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentPropertyAndOther" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentPropertyAndOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentSurety" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentSurety" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentWarranty" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentWarranty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentWorkersCompensation" name="NetPriorYearClaimAndAllocatedClaimAdjustmentExpenseReserveDevelopmentWorkersCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetPriorYearClaimAndClaimAdjustmentExpenseReserveDevelopmentTableTextBlock" name="NetPriorYearClaimAndClaimAdjustmentExpenseReserveDevelopmentTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_NetRealizedInvestmentGainsLossesAfterTaxAttributableToNoncontrollingInterests" name="NetRealizedInvestmentGainsLossesAfterTaxAttributableToNoncontrollingInterests" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetRealizedInvestmentGainsLossesAttributableToParent" name="NetRealizedInvestmentGainsLossesAttributableToParent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetRealizedInvestmentGainsLossesNetOfParticipatingPolicyholdersInterests" name="NetRealizedInvestmentGainsLossesNetOfParticipatingPolicyholdersInterests" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetReinsuranceReceivablesTransferrredToNicoUnderAepLossPortfolioTransfer" name="NetReinsuranceReceivablesTransferrredToNicoUnderAepLossPortfolioTransfer" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_NetUltimatePaidLossesCededUnderLossPortfolioTransfer" name="NetUltimatePaidLossesCededUnderLossPortfolioTransfer" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetUnrealizedGainsLossesOnDiscontinuedOperationsAndOther" name="NetUnrealizedGainsLossesOnDiscontinuedOperationsAndOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetUnrealizedGainsLossesOnInvestments" name="NetUnrealizedGainsLossesOnInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetUnrealizedGainsLossesOnInvestmentsAttributableToNoncontrollingInterests" name="NetUnrealizedGainsLossesOnInvestmentsAttributableToNoncontrollingInterests" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_NetUnrealizedGainsLossesOnInvestmentsWithOtherThanTemporaryImpairments" name="NetUnrealizedGainsLossesOnInvestmentsWithOtherThanTemporaryImpairments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_NotesReceivableForIssuanceOfCommonStockMember" name="NotesReceivableForIssuanceOfCommonStockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_NotesReceivableFromIssuanceOfCommonStock" name="NotesReceivableFromIssuanceOfCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_NumberOfActiveLimitedPartnershipInvestmentsHeld" name="NumberOfActiveLimitedPartnershipInvestmentsHeld" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_NumberOfInvestmentsThatExceedTenPercentOfStockholdersEquity" name="NumberOfInvestmentsThatExceedTenPercentOfStockholdersEquity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_NumberOfNonIncomeProducingFixedMaturitySecurities" name="NumberOfNonIncomeProducingFixedMaturitySecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_OperatingIncomeLossFromContinuingOperationsBeforeIncomeTax" name="OperatingIncomeLossFromContinuingOperationsBeforeIncomeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_OperatingLeasesCommitmentsAndContingenciesAndGuaranteesAbstract" name="OperatingLeasesCommitmentsAndContingenciesAndGuaranteesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_OperatingRevenues" name="OperatingRevenues" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_OtherDispositions" name="OtherDispositions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_OtherFinancialAssetsMember" name="OtherFinancialAssetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_OtherInsuranceRelatedExpenses" name="OtherInsuranceRelatedExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_OtherInvestedAssetsMember" name="OtherInvestedAssetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_OtherInvestmentIncomeMember" name="OtherInvestmentIncomeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_OtherLifeGroupMember" name="OtherLifeGroupMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_PensionAndPostretirementBenefitsAndStockBasedCompensationTextBlock" name="PensionAndPostretirementBenefitsAndStockBasedCompensationTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_PercentageOfAssumedEarnedToNetEarnedPremiumsDomain" name="PercentageOfAssumedEarnedToNetEarnedPremiumsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_PercentageOfAssumedPremiumsEarnedToNetPremiumsEarnedMember" name="PercentageOfAssumedPremiumsEarnedToNetPremiumsEarnedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_PercentageOfAssumedPremiumsWrittenToNetPremiumsWrittenMember" name="PercentageOfAssumedPremiumsWrittenToNetPremiumsWrittenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_PercentageOfAssumedWrittenToNetWrittenPremiumsDomain" name="PercentageOfAssumedWrittenToNetWrittenPremiumsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_PercentageOfBilledReceivablesComparedToTotalReinsuranceReceivables" name="PercentageOfBilledReceivablesComparedToTotalReinsuranceReceivables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_PercentageOfDistressedInvestmentsLimitedPartnershipHedgeFundStrategies" name="PercentageOfDistressedInvestmentsLimitedPartnershipHedgeFundStrategies" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_PercentageOfEarnedAmountAssumedToNetAssumedEarnedAxis" name="PercentageOfEarnedAmountAssumedToNetAssumedEarnedAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_PercentageOfEquityRelatedLimitedPartnershipHedgeFundStrategies" name="PercentageOfEquityRelatedLimitedPartnershipHedgeFundStrategies" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_PercentageOfFixedIncomeLimitedPartnershipHedgeFundStrategies" name="PercentageOfFixedIncomeLimitedPartnershipHedgeFundStrategies" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_PercentageOfForeignWrittenPremiums" name="PercentageOfForeignWrittenPremiums" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_PercentageOfLimitedPartnershipsEmployingHedgeFundStrategiesFocusedOnFixedIncomeAndEquityInvestments" name="PercentageOfLimitedPartnershipsEmployingHedgeFundStrategiesFocusedOnFixedIncomeAndEquityInvestments" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_PercentageOfLimitedPartnershipsReportedOnCurrentBasis" name="PercentageOfLimitedPartnershipsReportedOnCurrentBasis" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_PercentageOfLimitedPartnershipsReportedOnOneMonthLag" name="PercentageOfLimitedPartnershipsReportedOnOneMonthLag" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cna_PercentageOfMultistrategyApproachLimitedPartnershipHedgeFundStrategies" name="PercentageOfMultistrategyApproachLimitedPartnershipHedgeFundStrategies" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_PercentageOfWrittenAmountAssumedToNetWrittenEarnedAxis" name="PercentageOfWrittenAmountAssumedToNetWrittenEarnedAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
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  <xsd:element id="cna_PerformanceBasedAdjustmentShareBasedCompensationEquityInstrumentsOtherThanOptionsWeightedAverageGrantDateFairValue" name="PerformanceBasedAdjustmentShareBasedCompensationEquityInstrumentsOtherThanOptionsWeightedAverageGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
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  <xsd:element id="cna_PostretirementBenefitsAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" name="PostretirementBenefitsAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
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  <xsd:element id="cna_RegulatoryApprovalFromIllinoisDepartmentOfInsuranceOfAmountForCccToRepayOfSurplusNote" name="RegulatoryApprovalFromIllinoisDepartmentOfInsuranceOfAmountForCccToRepayOfSurplusNote" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element id="cna_ShareAwardsPlanAgreement" name="ShareAwardsPlanAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="cna_SubsidiariesOfSwissReGroupMember" name="SubsidiariesOfSwissReGroupMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="cna_TaxExpenseBenefitOnPretaxNetUnrealizedGainsLossesOnOtherAvailableForSaleSecuritiesReclassifiedOutOfAociAndRecognizedInEarnings" name="TaxExpenseBenefitOnPretaxNetUnrealizedGainsLossesOnOtherAvailableForSaleSecuritiesReclassifiedOutOfAociAndRecognizedInEarnings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
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  <xsd:element id="cna_TaxOnAllocationToParticipatingPolicyholders" name="TaxOnAllocationToParticipatingPolicyholders" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_TaxOnChangeInNetUnrealizedGainsOnOtherInvestments" name="TaxOnChangeInNetUnrealizedGainsOnOtherInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_TaxOnNetUnrealizedGainsLossesOnInvestments" name="TaxOnNetUnrealizedGainsLossesOnInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_TaxOnNetUnrealizedGainsLossesOnInvestmentsWithOtherThanTemporaryImpairments" name="TaxOnNetUnrealizedGainsLossesOnInvestmentsWithOtherThanTemporaryImpairments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_TaxOnNetUnrealizedGainsLossesOnInvestmentsWithOttiLosses" name="TaxOnNetUnrealizedGainsLossesOnInvestmentsWithOttiLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_TaxOnNetUnrealizedGainsLossesOnOtherInvestments" name="TaxOnNetUnrealizedGainsLossesOnOtherInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_TaxOnNetUnrealizedGainsOnDiscontinuedOperationsAndOther" name="TaxOnNetUnrealizedGainsOnDiscontinuedOperationsAndOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_TaxOnPensionAndPostretirementBenefits" name="TaxOnPensionAndPostretirementBenefits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_TermOfCccSurplusNote" name="TermOfCccSurplusNote" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_TotalCostsOfProgramIncurredIn2010" name="TotalCostsOfProgramIncurredIn2010" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_TotalExpectedCostsOfProgram" name="TotalExpectedCostsOfProgram" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cna_TotalIntangibleAssetsAccumulatedAmortization" name="TotalIntangibleAssetsAccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="cna_TotalPretaxFavorableUnfavorableNetPriorYearDevelopmentExcludingLifeGroup" name="TotalPretaxFavorableUnfavorableNetPriorYearDevelopmentExcludingLifeGroup" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_TradingPortfolioMember" name="TradingPortfolioMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_TradingSecuritiesUnrealizedHoldingGains" name="TradingSecuritiesUnrealizedHoldingGains" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cna_TradingSecuritiesUnrealizedHoldingLosses" name="TradingSecuritiesUnrealizedHoldingLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_USTreasuryAndObligationsOfGovernmentSponsoredEnterprisesMember" name="USTreasuryAndObligationsOfGovernmentSponsoredEnterprisesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_UnrealizedGainsLossesRecognizedInNetIncomeOnLevel3AssetsAndLiabilitiesHeld" name="UnrealizedGainsLossesRecognizedInNetIncomeOnLevel3AssetsAndLiabilitiesHeld" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cna_UnrecordedUnconditionalPurchaseObligationDueThereafter" name="UnrecordedUnconditionalPurchaseObligationDueThereafter" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cna_ValueOfBusinessAcquiredMember" name="ValueOfBusinessAcquiredMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_WarrantyAlternativeRisksMember" name="WarrantyAlternativeRisksMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cna_WeightedAverageNumberOfSharesOustandingBasicAndDilutedAbstract" name="WeightedAverageNumberOfSharesOustandingBasicAndDilutedAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_WorkersCompensationLifetimeClaimReservesAndAccidentAndHealthClaimReservesAreDiscountedAtInterestRatesMaximum" name="WorkersCompensationLifetimeClaimReservesAndAccidentAndHealthClaimReservesAreDiscountedAtInterestRatesMaximum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="cna_WorkersCompensationLifetimeClaimReservesAndAccidentAndHealthClaimReservesAreDiscountedAtInterestRatesMinimum" name="WorkersCompensationLifetimeClaimReservesAndAccidentAndHealthClaimReservesAreDiscountedAtInterestRatesMinimum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
</xsd:schema>
</XBRL>