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| <link:definition> 1004501 - Statement - Condensed Consolidated Statements of Financial Position (Unaudited) (Parenthetical) </link:definition> |
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| | | <link:roleType id="DerivativesAndHedging" roleURI="http://www.aon.com/role/DerivativesAndHedging"> |
| <link:definition> 2117100 - Disclosure - Derivatives and Hedging </link:definition> |
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| | | <link:roleType id="DerivativesAndHedgingForeignExchangeRiskManagementNarrativeDetails" roleURI="http://www.aon.com/role/DerivativesAndHedgingForeignExchangeRiskManagementNarrativeDetails"> |
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| <link:definition> 2119100 - Disclosure - Fair Value Measurements and Financial Instruments </link:definition> |
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| <link:definition> 2407403 - Disclosure - Goodwill and Other Intangible Assets (Details 2) </link:definition> |
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| <link:definition> 2122100 - Disclosure - Guarantee of Registered Securities </link:definition> |
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| <link:definition> 2113100 - Disclosure - Income Taxes </link:definition> |
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| <link:definition> 2413401 - Disclosure - Income Taxes (Details) </link:definition> |
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| <link:definition> 2105100 - Disclosure - Other Financial Data </link:definition> |
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| <link:definition> 2405403 - Disclosure - Other Financial Data - Schedule of Allowance for Doubtful Accounts (Details) </link:definition> |
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| | | <link:roleType id="OtherFinancialDataScheduleOfOtherCurrentAssetsDetails" roleURI="http://www.aon.com/role/OtherFinancialDataScheduleOfOtherCurrentAssetsDetails"> |
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| | | <link:roleType id="OtherFinancialDataScheduleOfOtherCurrentLiabilitiesDetails" roleURI="http://www.aon.com/role/OtherFinancialDataScheduleOfOtherCurrentLiabilitiesDetails"> |
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| | | <link:roleType id="OtherFinancialDataScheduleOfOtherIncomeDetails" roleURI="http://www.aon.com/role/OtherFinancialDataScheduleOfOtherIncomeDetails"> |
| <link:definition> 2405402 - Disclosure - Other Financial Data - Schedule of Other Income (Details) </link:definition> |
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| | | <link:roleType id="OtherFinancialDataScheduleOfOtherNonCurrentAssetsDetails" roleURI="http://www.aon.com/role/OtherFinancialDataScheduleOfOtherNonCurrentAssetsDetails"> |
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| | | <link:roleType id="OtherFinancialDataScheduleOfOtherNonCurrentLiabilitiesDetails" roleURI="http://www.aon.com/role/OtherFinancialDataScheduleOfOtherNonCurrentLiabilitiesDetails"> |
| <link:definition> 2405407 - Disclosure - Other Financial Data - Schedule of Other Non-current Liabilities (Details) </link:definition> |
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| | | <link:roleType id="OtherFinancialDataTables" roleURI="http://www.aon.com/role/OtherFinancialDataTables"> |
| <link:definition> 2305301 - Disclosure - Other Financial Data (Tables) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="SegmentInformation" roleURI="http://www.aon.com/role/SegmentInformation"> |
| <link:definition> 2121100 - Disclosure - Segment Information </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="SegmentInformationDetails" roleURI="http://www.aon.com/role/SegmentInformationDetails"> |
| <link:definition> 2421402 - Disclosure - Segment Information (Details) </link:definition> |
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| | | <link:roleType id="ShareBasedCompensationPlans" roleURI="http://www.aon.com/role/ShareBasedCompensationPlans"> |
| <link:definition> 2116100 - Disclosure - Share-Based Compensation Plans </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2416408 - Disclosure - Share-Based Compensation Plans - Other information related to the company's share options (Details) </link:definition> |
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| <link:definition> 2416404 - Disclosure - Share-Based Compensation Plans - Performance Share Awards Narrative (Details) </link:definition> |
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| <link:definition> 2416403 - Disclosure - Share-Based Compensation Plans - Restricted share unit activity (Details) </link:definition> |
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| <link:definition> 2416402 - Disclosure - Share-Based Compensation Plans - Share-based compensation expenses recognized (Details) </link:definition> |
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| <link:definition> 2114100 - Disclosure - Shareholders' Equity </link:definition> |
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| <link:definition> 2414403 - Disclosure - Shareholders' Equity (Details 2) </link:definition> |
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| <xsd:element id="aon_GainonSaleofBusinessandInvestmentsNet" name="GainonSaleofBusinessandInvestmentsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
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| <xsd:element id="aon_IncreaseDecreaseInFiduciaryReceivables" name="IncreaseDecreaseInFiduciaryReceivables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_IntercompanyInterestExpenseIncome" name="IntercompanyInterestExpenseIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_IntercompanyOtherIncomeExpenseNet" name="IntercompanyOtherIncomeExpenseNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_InternationalRoadTransportUnionMember" name="InternationalRoadTransportUnionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_InvestmentsInSubsidiaries" name="InvestmentsInSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="aon_JuniorSubordinatedDeferrableInterestDebentures8Point205PercentDue2027Member" name="JuniorSubordinatedDeferrableInterestDebentures8Point205PercentDue2027Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_LitigationExpensesandInterestMember" name="LitigationExpensesandInterestMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_LitigationForeignCurrencyDenominatedAwardMember" name="LitigationForeignCurrencyDenominatedAwardMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_LitigationUSDDenominatedAwardMember" name="LitigationUSDDenominatedAwardMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_LossContingencyCoverageFromInsurers" name="LossContingencyCoverageFromInsurers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_LossContingencyDamagesAwardedValueExcludingInterestandCosts" name="LossContingencyDamagesAwardedValueExcludingInterestandCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_LossContingencyDamagesDifferenceAmountSoughtValue" name="LossContingencyDamagesDifferenceAmountSoughtValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_LossContingencySettlementAgreementTermsMaximumLiability" name="LossContingencySettlementAgreementTermsMaximumLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_LyttletonPortCompanyLimitedMember" name="LyttletonPortCompanyLimitedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_MarketingTechnologyAndOtherMember" name="MarketingTechnologyAndOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_MaximumAverageMaturityOfForeignCurrencyDerivatives" name="MaximumAverageMaturityOfForeignCurrencyDerivatives" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_MaximumLengthOfTimeHedgedInForeignCurrencyUndesignatedHedge" name="MaximumLengthOfTimeHedgedInForeignCurrencyUndesignatedHedge" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_MoneyMarketFundsAndOtherHighlyLiquidDebtSecuritiesMember" name="MoneyMarketFundsAndOtherHighlyLiquidDebtSecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_NotesDue2042At4250PercentMember" name="NotesDue2042At4250PercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_NotesDueat2043at4.45PercentMember" name="NotesDueat2043at4.45PercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_NumberOfCreditFacilities" name="NumberOfCreditFacilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/> |
| <xsd:element id="aon_NumberOfDispositions" name="NumberOfDispositions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_OpryMillsMallLimitedPartnershipMember" name="OpryMillsMallLimitedPartnershipMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_OrdinaryShareProgramsTable" name="OrdinaryShareProgramsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_OtherFinancialDataAbstract" name="OtherFinancialDataAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_OtherGeneralExpenses" name="OtherGeneralExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_OtherGeneralExpensesMember" name="OtherGeneralExpensesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_OtherTaxAssetsCurrent" name="OtherTaxAssetsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="aon_OutsourcingRevenuesMember" name="OutsourcingRevenuesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_PaymentsForProceedsFromMarketableSecurities" name="PaymentsForProceedsFromMarketableSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_PhilipsMember" name="PhilipsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_PotentialClaimforPensionAdvisoryServicesMember" name="PotentialClaimforPensionAdvisoryServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_PriorPeriodReclassificationAdjustmentAmountTransferedfromAccountPayableandAccruedLiabilitiesinOperatingActivitiestoFinancingActivities" name="PriorPeriodReclassificationAdjustmentAmountTransferedfromAccountPayableandAccruedLiabilitiesinOperatingActivitiestoFinancingActivities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_PriorPeriodReclassificationAdjustmentAmountTransferedfromOperatingActivitiestoIssuanceofSharesforEmployeeBenefitPlansinFinancingActivities" name="PriorPeriodReclassificationAdjustmentAmountTransferedfromOperatingActivitiestoIssuanceofSharesforEmployeeBenefitPlansinFinancingActivities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_PriorPeriodReclassificationAdjustmentAmountTransferedfromOtherAssetsandLiabilitiesinOperatingActivitiestoFinancingActivities" name="PriorPeriodReclassificationAdjustmentAmountTransferedfromOtherAssetsandLiabilitiesinOperatingActivitiestoFinancingActivities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ProceedsPaymentTowardsIssuanceofSharesUnderIncentiveandSharebasedCompensationPlansNetofPaymentsRelatedtoTaxWithholdingforSharebasedCompensation" name="ProceedsPaymentTowardsIssuanceofSharesUnderIncentiveandSharebasedCompensationPlansNetofPaymentsRelatedtoTaxWithholdingforSharebasedCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax" name="ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_ReinsuranceBrokerageRevenuesMember" name="ReinsuranceBrokerageRevenuesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_RestrictedCashOperatingFunds" name="RestrictedCashOperatingFunds" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="aon_RetailBrokerageRevenuesMember" name="RetailBrokerageRevenuesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_RiskAndInsuranceBrokerageServicesMember" name="RiskAndInsuranceBrokerageServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_SalesPurchasesofsharestoFromNoncontrollingInterest" name="SalesPurchasesofsharestoFromNoncontrollingInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ScheduleOfBusinessSegmentComponentsOfCommissionsFeesAndOtherRevenuesByProductsTableTextBlock" name="ScheduleOfBusinessSegmentComponentsOfCommissionsFeesAndOtherRevenuesByProductsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ScheduleOfBusinessSegmentComponentsOfFiduciaryInvestmentIncomeTableTextBlock" name="ScheduleOfBusinessSegmentComponentsOfFiduciaryInvestmentIncomeTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ScheduleOfBusinessSegmentComponentsOfRevenuesTableTextBlock" name="ScheduleOfBusinessSegmentComponentsOfRevenuesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ScheduleOfCondensedComprehensiveIncomeStatementTableTextBlock" name="ScheduleOfCondensedComprehensiveIncomeStatementTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock" name="ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ScheduleOfNotionalAmountsAndFairValuesOfOutstandingDerivativePositionsTableTextBlock" name="ScheduleOfNotionalAmountsAndFairValuesOfOutstandingDerivativePositionsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ScheduleOfShareBasedCompensationStockOptionsOtherInformationTableTextBlock" name="ScheduleOfShareBasedCompensationStockOptionsOtherInformationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ScheduleofAccountsNotesLoansandFinancingReceivableAllowanceforDoubtfulAccountsTableTextBlock" name="ScheduleofAccountsNotesLoansandFinancingReceivableAllowanceforDoubtfulAccountsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ScheduleofPerformanceBasedPlansTableTextBlock" name="ScheduleofPerformanceBasedPlansTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_SeniorNotes3Point125PercentDue2016Member" name="SeniorNotes3Point125PercentDue2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_SeniorNotes4.00PercentDue2023Member" name="SeniorNotes4.00PercentDue2023Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_SeniorNotes500PercentDue2020Member" name="SeniorNotes500PercentDue2020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_SeniorNotes625PercentDue2040Member" name="SeniorNotes625PercentDue2040Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuable" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedPercent" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="aon_ShareRepurchaseProgramOf2012Member" name="ShareRepurchaseProgramOf2012Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_ShareRepurchaseProgramof2014Member" name="ShareRepurchaseProgramof2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_SharebasedCompensationArrangementbySharebasedPaymentAwardVestingConditionsPeriod" name="SharebasedCompensationArrangementbySharebasedPaymentAwardVestingConditionsPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ShortTermDebtAverageOutstandingAmountWeightedAverageInterestRate" name="ShortTermDebtAverageOutstandingAmountWeightedAverageInterestRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ShortTermInvestmentsMaturityMaximumPeriod" name="ShortTermInvestmentsMaturityMaximumPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_ShortTermInvestmentsMaturityMinimumPeriod" name="ShortTermInvestmentsMaturityMinimumPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_StockIssuedDuringPeriodSharesEmployeeCompensationNetofForfeitures" name="StockIssuedDuringPeriodSharesEmployeeCompensationNetofForfeitures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_StockIssuedDuringPeriodValueEmployeeCompensationNetOfForfeitures" name="StockIssuedDuringPeriodValueEmployeeCompensationNetOfForfeitures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element id="aon_SubsidiaryGuarantorsPercentageOwned" name="SubsidiaryGuarantorsPercentageOwned" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="aon_SummaryofReclassificationFromPriorPeriodLineItems" name="SummaryofReclassificationFromPriorPeriodLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_SummaryofReclassificationFromPriorPeriodTable" name="SummaryofReclassificationFromPriorPeriodTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_ThreePointEightSevenFiveSeniorNoteDueinDecemberTwentyTwentyFiveMember" name="ThreePointEightSevenFiveSeniorNoteDueinDecemberTwentyTwentyFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_TwoPointEightZeroPercentSeniorNotesDueTwentyTwentyOneMember" name="TwoPointEightZeroPercentSeniorNotesDueTwentyTwentyOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="aon_USCommercialPaperProgramMember" name="USCommercialPaperProgramMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="aon_UnamortizedExpenseOnPerformanceBasedPlans" name="UnamortizedExpenseOnPerformanceBasedPlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| </xsd:schema> |