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| <link:definition> 2110100 - Disclosure - Income Taxes </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2410405 - Disclosure - Income Taxes Components of deferred income tax assets and liabilities (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2410403 - Disclosure - Income Taxes Components of the provision for income taxes (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="IncomeTaxesIncomeTaxNarrativeDetails" roleURI="http://www.uhc.com/role/IncomeTaxesIncomeTaxNarrativeDetails"> |
| <link:definition> 2410402 - Disclosure - Income Taxes Income Tax Narrative (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="IncomeTaxesIncomeTaxesTables" roleURI="http://www.uhc.com/role/IncomeTaxesIncomeTaxesTables"> |
| <link:definition> 2310301 - Disclosure - Income Taxes Income Taxes (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2410406 - Disclosure - Income Taxes Reconciliation of the beginning and ending amount of unrecognized tax benefits (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2410404 - Disclosure - Income Taxes Reconciliation of the tax provision at the U.S. Federal Statutory Rate to the provision for income taxes (Details) </link:definition> |
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| | | <link:roleType id="Investments" roleURI="http://www.uhc.com/role/Investments"> |
| <link:definition> 2104100 - Disclosure - Investments </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="InvestmentsAmortizedCostAndFairValueOfAvailableForSaleDebtSecuritiesByContractualMaturityDetails" roleURI="http://www.uhc.com/role/InvestmentsAmortizedCostAndFairValueOfAvailableForSaleDebtSecuritiesByContractualMaturityDetails"> |
| <link:definition> 2404405 - Disclosure - Investments (Amortized Cost and Fair Value of Available-for-Sale Debt Securities by Contractual Maturity) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="InvestmentsAmortizedCostAndFairValueOfHeldToMaturityDebtSecuritiesByContractualMaturityDetails" roleURI="http://www.uhc.com/role/InvestmentsAmortizedCostAndFairValueOfHeldToMaturityDebtSecuritiesByContractualMaturityDetails"> |
| <link:definition> 2404406 - Disclosure - Investments (Amortized Cost and Fair Value of Held-To-Maturity Debt Securities by Contractual Maturity) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="InvestmentsFairValueOfAvailableForSaleInvestmentsWithGrossUnrealizedLossesByInvestmentTypeAndLengthOfTimeThatIndividualSecuritiesHaveBeenInContinuousUnrealizedLossPositionDetails" roleURI="http://www.uhc.com/role/InvestmentsFairValueOfAvailableForSaleInvestmentsWithGrossUnrealizedLossesByInvestmentTypeAndLengthOfTimeThatIndividualSecuritiesHaveBeenInContinuousUnrealizedLossPositionDetails"> |
| <link:definition> 2404407 - Disclosure - Investments (Fair Value of Available-For-Sale Investments with Gross Unrealized Losses by Investment Type and Length of Time That Individual Securities Have Been in a Continuous Unrealized Loss Position) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
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| | | <link:roleType id="InvestmentsFairValueOfMortgageBackedSecuritiesByCreditRatingOriginationDetails" roleURI="http://www.uhc.com/role/InvestmentsFairValueOfMortgageBackedSecuritiesByCreditRatingOriginationDetails"> |
| <link:definition> 2404404 - Disclosure - Investments (Fair Value of Mortgage-Backed Securities by Credit Rating Origination) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="InvestmentsNarrativeDetails" roleURI="http://www.uhc.com/role/InvestmentsNarrativeDetails"> |
| <link:definition> 2404402 - Disclosure - Investments (Narrative) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="InvestmentsNetRealizedGainsDetails" roleURI="http://www.uhc.com/role/InvestmentsNetRealizedGainsDetails"> |
| <link:definition> 2404408 - Disclosure - Investments (Net Realized Gains) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="InvestmentsShortTermAndLongTermInvestmentsDetails" roleURI="http://www.uhc.com/role/InvestmentsShortTermAndLongTermInvestmentsDetails"> |
| <link:definition> 2404403 - Disclosure - Investments (Short-Term and Long-Term Investments) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="InvestmentsTables" roleURI="http://www.uhc.com/role/InvestmentsTables"> |
| <link:definition> 2304301 - Disclosure - Investments (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="MedicalCostsAndMedicalCostsPayable" roleURI="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayable"> |
| <link:definition> 2108100 - Disclosure - Medical Costs and Medical Costs Payable </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="MedicalCostsAndMedicalCostsPayableMedicalCostsAndMedicalCostsPayableDetails" roleURI="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayableMedicalCostsAndMedicalCostsPayableDetails"> |
| <link:definition> 2408403 - Disclosure - Medical Costs and Medical Costs Payable Medical Costs And Medical Costs Payable (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="MedicalCostsAndMedicalCostsPayableMedicalCostsAndMedicalCostsPayableTables" roleURI="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayableMedicalCostsAndMedicalCostsPayableTables"> |
| <link:definition> 2308301 - Disclosure - Medical Costs and Medical Costs Payable Medical Costs And Medical Costs Payable (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="MedicalCostsAndMedicalCostsPayableNarrativeDetails" roleURI="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayableNarrativeDetails"> |
| <link:definition> 2408402 - Disclosure - Medical Costs and Medical Costs Payable Narrative (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="PropertyEquipmentAndCapitalizedSoftware" roleURI="http://www.uhc.com/role/PropertyEquipmentAndCapitalizedSoftware"> |
| <link:definition> 2106100 - Disclosure - Property, Equipment and Capitalized Software </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="PropertyEquipmentAndCapitalizedSoftwarePropertyEquipmentAndCapitalizedSoftwareNarrativeDetails" roleURI="http://www.uhc.com/role/PropertyEquipmentAndCapitalizedSoftwarePropertyEquipmentAndCapitalizedSoftwareNarrativeDetails"> |
| <link:definition> 2406402 - Disclosure - Property, Equipment and Capitalized Software Property, Equipment and Capitalized Software (Narrative) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="PropertyEquipmentAndCapitalizedSoftwarePropertyEquipmentAndCapitalizedSoftwareTableDetails" roleURI="http://www.uhc.com/role/PropertyEquipmentAndCapitalizedSoftwarePropertyEquipmentAndCapitalizedSoftwareTableDetails"> |
| <link:definition> 2406403 - Disclosure - Property, Equipment and Capitalized Software Property, Equipment and Capitalized Software table (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="PropertyEquipmentAndCapitalizedSoftwareTables" roleURI="http://www.uhc.com/role/PropertyEquipmentAndCapitalizedSoftwareTables"> |
| <link:definition> 2306301 - Disclosure - Property, Equipment and Capitalized Software (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="QuarterlyFinancialDataUnaudited" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnaudited"> |
| <link:definition> 2116100 - Disclosure - Quarterly Financial Data (Unaudited) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="QuarterlyFinancialDataUnauditedQuarterlyFinancialDataDetails" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedQuarterlyFinancialDataDetails"> |
| <link:definition> 2416402 - Disclosure - Quarterly Financial Data (Unaudited) Quarterly Financial Data (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="QuarterlyFinancialDataUnauditedQuarterlyFinancialDataTables" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedQuarterlyFinancialDataTables"> |
| <link:definition> 2316301 - Disclosure - Quarterly Financial Data (Unaudited) Quarterly Financial Data (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="ScheduleI" roleURI="http://www.uhc.com/role/ScheduleI"> |
| <link:definition> 2117100 - Disclosure - Schedule I </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="ScheduleICondensedStatementsOfOperationsDetails" roleURI="http://www.uhc.com/role/ScheduleICondensedStatementsOfOperationsDetails"> |
| <link:definition> 2417402 - Disclosure - Schedule I Condensed Statements of Operations (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="ScheduleINumbersInNarrativeDetails" roleURI="http://www.uhc.com/role/ScheduleINumbersInNarrativeDetails"> |
| <link:definition> 2417404 - Disclosure - Schedule I Numbers in Narrative (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="ScheduleIScheduleICondensedBalanceSheetDetails" roleURI="http://www.uhc.com/role/ScheduleIScheduleICondensedBalanceSheetDetails"> |
| <link:definition> 2417401 - Disclosure - Schedule I Schedule I Condensed Balance Sheet (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="ScheduleIScheduleICondensedStatementsOfCashFlowsDetails" roleURI="http://www.uhc.com/role/ScheduleIScheduleICondensedStatementsOfCashFlowsDetails"> |
| <link:definition> 2417403 - Disclosure - Schedule I Schedule I Condensed Statements of Cash Flows (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="SegmentFinancialInformation" roleURI="http://www.uhc.com/role/SegmentFinancialInformation"> |
| <link:definition> 2115100 - Disclosure - Segment Financial Information </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="SegmentFinancialInformationDetails" roleURI="http://www.uhc.com/role/SegmentFinancialInformationDetails"> |
| <link:definition> 2415403 - Disclosure - Segment Financial Information (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="SegmentFinancialInformationNarrativeDetails" roleURI="http://www.uhc.com/role/SegmentFinancialInformationNarrativeDetails"> |
| <link:definition> 2415402 - Disclosure - Segment Financial Information (Narrative) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="SegmentFinancialInformationTables" roleURI="http://www.uhc.com/role/SegmentFinancialInformationTables"> |
| <link:definition> 2315301 - Disclosure - Segment Financial Information (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="ShareBasedCompensation" roleURI="http://www.uhc.com/role/ShareBasedCompensation"> |
| <link:definition> 2112100 - Disclosure - Share-Based Compensation </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="ShareBasedCompensationNarrativeDetails" roleURI="http://www.uhc.com/role/ShareBasedCompensationNarrativeDetails"> |
| <link:definition> 2412402 - Disclosure - Share-Based Compensation (Narrative) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="ShareBasedCompensationRestrictedShareActivityDetails" roleURI="http://www.uhc.com/role/ShareBasedCompensationRestrictedShareActivityDetails"> |
| <link:definition> 2412405 - Disclosure - Share-Based Compensation (Restricted Share Activity) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="ShareBasedCompensationShareBasedCompensationPrincipalFairValueAssumptionsDetails" roleURI="http://www.uhc.com/role/ShareBasedCompensationShareBasedCompensationPrincipalFairValueAssumptionsDetails"> |
| <link:definition> 2412404 - Disclosure - Share-Based Compensation (Share-Based Compensation Principal Fair Value Assumptions) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ShareBasedCompensationStockOptionAndSarActivityDetails" roleURI="http://www.uhc.com/role/ShareBasedCompensationStockOptionAndSarActivityDetails"> |
| <link:definition> 2412403 - Disclosure - Share-Based Compensation (Stock Option and SAR Activity) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType id="ShareBasedCompensationTables" roleURI="http://www.uhc.com/role/ShareBasedCompensationTables"> |
| <link:definition> 2312301 - Disclosure - Share-Based Compensation (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2111100 - Disclosure - Shareholders' Equity </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2411402 - Disclosure - Shareholders' Equity (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2311301 - Disclosure - Shareholders' Equity (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <xsd:element abstract="true" id="unh_AaaCreditRatingMember" name="AaaCreditRatingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_AarpAssetsUnderManagement" name="AarpAssetsUnderManagement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_AarpProgramMember" name="AarpProgramMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_AarpProgramRelatedInvestments" name="AarpProgramRelatedInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_AarpProgramRelatedOtherLiabilities" name="AarpProgramRelatedOtherLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_AltASecuritiesMember" name="AltASecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_AmortizationExpenseAxis" name="AmortizationExpenseAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_AmortizationExpenseDomain" name="AmortizationExpenseDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_AmortizationExpenseRelatingToIntangibleAssetsTable" name="AmortizationExpenseRelatingToIntangibleAssetsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_AmortizationPeriodOfDeferredGainLossOnTerminationOfFairValueHedge" name="AmortizationPeriodOfDeferredGainLossOnTerminationOfFairValueHedge" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_AnnualCashDividendRatePerShare" name="AnnualCashDividendRatePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_AssetsUnderManagementPolicyPolicyTextBlock" name="AssetsUnderManagementPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_AvailableForSaleInvestmentsClassifiedByContractualMaturityDateTextBlock" name="AvailableForSaleInvestmentsClassifiedByContractualMaturityDateTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_AveragePenaltyPerAllegedViolation" name="AveragePenaltyPerAllegedViolation" nillable="true" substitutionGroup="xbrli:item" type="us-types:perUnitItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_BalanceSheetParentheticalAbstract" name="BalanceSheetParentheticalAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CaliforniaClaimsProcessingMatterMember" name="CaliforniaClaimsProcessingMatterMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_CapitalContributionsToSubsidiaries" name="CapitalContributionsToSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CapitalizedSoftwareMember" name="CapitalizedSoftwareMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_CashAndInvestmentHeldByNonRegulatedEntities" name="CashAndInvestmentHeldByNonRegulatedEntities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_CashCashEquivalentsAndMarketableSecurities" name="CashCashEquivalentsAndMarketableSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_CashCashEquivalentsAvailableForSaleSecuritiesAndInterestRateSwapAssetsAsPercentageOfTotalAssets" name="CashCashEquivalentsAvailableForSaleSecuritiesAndInterestRateSwapAssetsAsPercentageOfTotalAssets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_CdiAggregatePenalty" name="CdiAggregatePenalty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_ChecksOutstandingInExcessOfBankDeposits" name="ChecksOutstandingInExcessOfBankDeposits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_CmsObligationToPayCostsIncurredByIndividualMembers" name="CmsObligationToPayCostsIncurredByIndividualMembers" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CmsSubsidiesMember" name="CmsSubsidiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_CommercialMortageLoansInDefault" name="CommercialMortageLoansInDefault" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_CommercialMortgageLoansInDefaultMember" name="CommercialMortgageLoansInDefaultMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CommitmentsAndContingenciesDisclosureAxis" name="CommitmentsAndContingenciesDisclosureAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_CommonStockDividendsPerShare" name="CommonStockDividendsPerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_ConsolidatedStatementOfChangesInShareholdersEquityParentheticalAbstract" name="ConsolidatedStatementOfChangesInShareholdersEquityParentheticalAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CreditRatingMember" name="CreditRatingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_DeferredTaxAssetsLongTermLiabilities" name="DeferredTaxAssetsLongTermLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_DeferredTaxAssetsUnrecognizedTaxBenefits" name="DeferredTaxAssetsUnrecognizedTaxBenefits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_DescriptionOfBusinessAbstract" name="DescriptionOfBusinessAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_DividendFrequencyAxis" name="DividendFrequencyAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_DividendFrequencyDomain" name="DividendFrequencyDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_DocumentAndEntityInformationAbstractAbstract" name="DocumentAndEntityInformationAbstractAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_DrugDiscountMember" name="DrugDiscountMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_EmployeeStockPurchasePlanEsppMember" name="EmployeeStockPurchasePlanEsppMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_EquityInNetAssetsOfSubsidiaries" name="EquityInNetAssetsOfSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_EquityInUndistributedIncomeOfSubsidiaries" name="EquityInUndistributedIncomeOfSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element id="unh_EstimatedLargestAggregatePenaltyIssuedByCdi" name="EstimatedLargestAggregatePenaltyIssuedByCdi" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_ExtraordinaryDividends" name="ExtraordinaryDividends" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_FairValueAdjustmentsForAssetsAndLiabilitiesMeasuredAtFairValueOnNonRecurringBasis" name="FairValueAdjustmentsForAssetsAndLiabilitiesMeasuredAtFairValueOnNonRecurringBasis" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDomain" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FivePercentSeniorUnsecuredNotesDueAugustTwoThousandFourteenMember" name="FivePercentSeniorUnsecuredNotesDueAugustTwoThousandFourteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FivePointEightPercentSeniorUnsecuredNotesDueMarchTwoThousandThirtySixMember" name="FivePointEightPercentSeniorUnsecuredNotesDueMarchTwoThousandThirtySixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FivePointFivePercentSeniorUnsecuredNotesDueNovemberTwoThousandTwelveMember" name="FivePointFivePercentSeniorUnsecuredNotesDueNovemberTwoThousandTwelveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FivePointFourPercentSeniorUnsecuredNotesDueMarchTwoThousandSixteenMember" name="FivePointFourPercentSeniorUnsecuredNotesDueMarchTwoThousandSixteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FivePointFourPercentSeniorUnsecuredNotesDueNovemberTwoThousandSixteenMember" name="FivePointFourPercentSeniorUnsecuredNotesDueNovemberTwoThousandSixteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FivePointSevenPercentSeniorUnsecuredNotesDueOctoberTwoThousandFortyMember" name="FivePointSevenPercentSeniorUnsecuredNotesDueOctoberTwoThousandFortyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FivePointThreeSeniorUnsecuredNotesDueMarchTwoThousandElevenMember" name="FivePointThreeSeniorUnsecuredNotesDueMarchTwoThousandElevenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointEightPercentSeniorUnsecuredNotesDueFebruaryTwoThousandFourteenMember" name="FourPointEightPercentSeniorUnsecuredNotesDueFebruaryTwoThousandFourteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointNinePercentSeniorUnsecuredNotesDueAprilTwoThousandThirteenMember" name="FourPointNinePercentSeniorUnsecuredNotesDueAprilTwoThousandThirteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointNinePercentSeniorUnsecuredNotesDueFebruaryTwoThousandThirteenMember" name="FourPointNinePercentSeniorUnsecuredNotesDueFebruaryTwoThousandThirteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointNinePercentSeniorUnsecuredNotesDueMarchTwoThousandFifteenMember" name="FourPointNinePercentSeniorUnsecuredNotesDueMarchTwoThousandFifteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointSevenPercentageSeniorUnsecuredNotesDueFebruaryTwoThousandTwentyOneMember" name="FourPointSevenPercentageSeniorUnsecuredNotesDueFebruaryTwoThousandTwentyOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointSixPercentageOfSeniorUnsecuredNotesDueNovemberTwoThousandFortyOneMember" name="FourPointSixPercentageOfSeniorUnsecuredNotesDueNovemberTwoThousandFortyOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FurnitureFixturesAndEquipmentMember" name="FurnitureFixturesAndEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FutureMinimumAnnualLeasePaymentsAbstract" name="FutureMinimumAnnualLeasePaymentsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_FuturePolicyBenefitsAndReinsuranceReceivablesPolicyPolicyTextBlock" name="FuturePolicyBenefitsAndReinsuranceReceivablesPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_GuarantyFundAssessmentsMember" name="GuarantyFundAssessmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_HeldToMaturityInvestmentsClassifiedByContractualMaturityDateTextBlock" name="HeldToMaturityInvestmentsClassifiedByContractualMaturityDateTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_InterestIncomeAndRealizedGainsLossesRelatedToAssetsUnderManagement" name="InterestIncomeAndRealizedGainsLossesRelatedToAssetsUnderManagement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_InterestRateSwapTermination" name="InterestRateSwapTermination" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="unh_LiabilityForClaimsAndClaimsAdjustmentExpenseRelatedToAcquisitions" name="LiabilityForClaimsAndClaimsAdjustmentExpenseRelatedToAcquisitions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_LossOfParentCompany" name="LossOfParentCompany" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MandatedDiscountsOnBrandNamePrescriptionDrugsUnderMedicarePartDProgram" name="MandatedDiscountsOnBrandNamePrescriptionDrugsUnderMedicarePartDProgram" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_MarketableSecuritiesAmortizedCost" name="MarketableSecuritiesAmortizedCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_MarketableSecuritiesUnrealizedGains" name="MarketableSecuritiesUnrealizedGains" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_MarketableSecuritiesUnrealizedLosses" name="MarketableSecuritiesUnrealizedLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_MaturitiesOfCommercialPaperAndLongTermDebtAbstract" name="MaturitiesOfCommercialPaperAndLongTermDebtAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MaximumFinePerCdiViolation" name="MaximumFinePerCdiViolation" nillable="true" substitutionGroup="xbrli:item" type="us-types:perUnitItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_MaximumPercentageOfIndebtednessToTotalNetCapitalBankCovenant" name="MaximumPercentageOfIndebtednessToTotalNetCapitalBankCovenant" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_MedicalCostAndMedicalCostPayableRollForward" name="MedicalCostAndMedicalCostPayableRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MedicalCostsAndMedicalCostsPayableAbstract" name="MedicalCostsAndMedicalCostsPayableAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MedicalCostsAndMedicalCostsPayableAxis" name="MedicalCostsAndMedicalCostsPayableAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MedicalCostsAndMedicalCostsPayableDomain" name="MedicalCostsAndMedicalCostsPayableDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MedicalCostsAndMedicalCostsPayablePolicyPolicyTextBlock" name="MedicalCostsAndMedicalCostsPayablePolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MedicalCostsAndMedicalCostsPayableTable" name="MedicalCostsAndMedicalCostsPayableTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MedicalCostsAndMedicalCostsPayableTableTextBlock" name="MedicalCostsAndMedicalCostsPayableTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MedicalCostsMedicalCostsPayableDisclosureTextBlock" name="MedicalCostsMedicalCostsPayableDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MedicarePartDAbstract" name="MedicarePartDAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MedicarePartDAnnualOutOfPocketMaximum" name="MedicarePartDAnnualOutOfPocketMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_MedicarePartDAnnualOutOfPocketMaximumMember" name="MedicarePartDAnnualOutOfPocketMaximumMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MedicarePartDCatastrophicCoverage" name="MedicarePartDCatastrophicCoverage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_MedicarePartDCatastrophicCoverageMember" name="MedicarePartDCatastrophicCoverageMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MedicarePartDInitialCoverageLimit" name="MedicarePartDInitialCoverageLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_MedicarePartDInitialCoverageLimitMember" name="MedicarePartDInitialCoverageLimitMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MedicarePartDPharmacyBenefitsContractAxis" name="MedicarePartDPharmacyBenefitsContractAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MedicarePartDPharmacyBenefitsContractDomain" name="MedicarePartDPharmacyBenefitsContractDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MedicarePartDPolicyPolicyTextBlock" name="MedicarePartDPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MedicarePartDTable" name="MedicarePartDTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MortgageBackedSecuritiesByCreditRatingAndOriginationTextBlock" name="MortgageBackedSecuritiesByCreditRatingAndOriginationTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_NumberOfBanksThatCompriseRevolvingBankCreditFacility" name="NumberOfBanksThatCompriseRevolvingBankCreditFacility" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_NumberOfDaysNoticeRequiredToCancelHealthInsuranceContract" name="NumberOfDaysNoticeRequiredToCancelHealthInsuranceContract" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_NumberOfReportableSegments" name="NumberOfReportableSegments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_NumberOfYearsOfRevolvingBankCredit" name="NumberOfYearsOfRevolvingBankCredit" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_NumbersInNarrativeAbstract" name="NumbersInNarrativeAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_OnePointNinePercentageOfSeniorUnsecuredNotesDueNovemberTwoThousandAndSixteenthMember" name="OnePointNinePercentageOfSeniorUnsecuredNotesDueNovemberTwoThousandAndSixteenthMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_OptumhealthMember" name="OptumhealthMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_OptuminsightMember" name="OptuminsightMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_OptumrxMember" name="OptumrxMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_OriginationIn2007Member" name="OriginationIn2007Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_OtherPolicyLiabilitiesPolicyTextBlock" name="OtherPolicyLiabilitiesPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_PercentageOfLoansInDefault" name="PercentageOfLoansInDefault" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_PolicyAcquisitionCostsPolicyTextBlock" name="PolicyAcquisitionCostsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_PreTwoThousandFiveMember" name="PreTwoThousandFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_PreferredStockAndOtherItemsWithNoActiveMarketsMember" name="PreferredStockAndOtherItemsWithNoActiveMarketsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_PropertyPlantAndEquipmentExcludingCapitalizedComputerSoftwareNet" name="PropertyPlantAndEquipmentExcludingCapitalizedComputerSoftwareNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_ProvisionForIncomeTaxesAxis" name="ProvisionForIncomeTaxesAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ProvisionForIncomeTaxesDomain" name="ProvisionForIncomeTaxesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_QuarterlyAmountSinceJune2010Member" name="QuarterlyAmountSinceJune2010Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_QuarterlyCashDividendRatePerShare" name="QuarterlyCashDividendRatePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_RateStabilizationFund" name="RateStabilizationFund" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_RecentAccountingStandardsPolicyTextBlock" name="RecentAccountingStandardsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ReinsuranceReceivableCurrentMember" name="ReinsuranceReceivableCurrentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ReinsuranceReceivalbeNonCurrentMember" name="ReinsuranceReceivalbeNonCurrentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_RevolvingCreditFacilityMember" name="RevolvingCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_RiskShareMember" name="RiskShareMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ScheduleICondensedStatementsOfCashFlowsAbstract" name="ScheduleICondensedStatementsOfCashFlowsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ScheduleOfDividendsPaidTableTextBlock" name="ScheduleOfDividendsPaidTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ScheduleOfOtherCurrentReceivablesAndOtherPolicyLiabilitiesAssociatedWithMedicarePartDProgramTableTextBlock" name="ScheduleOfOtherCurrentReceivablesAndOtherPolicyLiabilitiesAssociatedWithMedicarePartDProgramTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SecuritiesByOriginationAxis" name="SecuritiesByOriginationAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SecuritiesByOriginationDomain" name="SecuritiesByOriginationDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SecuritiesCollateralizedBySubPrimeHomeEquityLinesOfCreditMember" name="SecuritiesCollateralizedBySubPrimeHomeEquityLinesOfCreditMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SegmentFinancialInformationAbstract" name="SegmentFinancialInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SeniorUnsecuredFloatingRateNotesDueFebruary2011Member" name="SeniorUnsecuredFloatingRateNotesDueFebruary2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitures" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitures" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsExercisableNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsExercisableNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsExercisesInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsExercisesInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsForfeituresInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsForfeituresInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsGrantsInPeriodNetOfForfeitures" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsGrantsInPeriodNetOfForfeitures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsOutstandingNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsOutstandingNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsVestedAndExpectedToVestOutstandingNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndSarsVestedAndExpectedToVestOutstandingNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_SixPercentSeniorUnsecuredNotesDueJuneTwoThousandSeventeenMember" name="SixPercentSeniorUnsecuredNotesDueJuneTwoThousandSeventeenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SixPointFivePercentSeniorUnsecuredNotesDueJuneTwoThousandThirtySevenMember" name="SixPointFivePercentSeniorUnsecuredNotesDueJuneTwoThousandThirtySevenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SixPointNinePercentSeniorUnsecuredNotesDueFebruaryTwoThousandThirtyEightMember" name="SixPointNinePercentSeniorUnsecuredNotesDueFebruaryTwoThousandThirtyEightMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SixPointSixPercentSeniorUnsecuredNotesDueNovemberTwoThousandThirtySevenMember" name="SixPointSixPercentSeniorUnsecuredNotesDueNovemberTwoThousandThirtySevenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SixPointZeroPercentSeniorUnsecuredNotesDueFebruaryTwoThousandFortyOneMember" name="SixPointZeroPercentSeniorUnsecuredNotesDueFebruaryTwoThousandFortyOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SixPointZeroPercentSeniorUnsecuredNotesDueNovember2017Member" name="SixPointZeroPercentSeniorUnsecuredNotesDueNovember2017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_SixPointZeroSeniorUnsecuredNotesDueFebruaryTwoThousandEighteenMember" name="SixPointZeroSeniorUnsecuredNotesDueFebruaryTwoThousandEighteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_SubsequentEventDividendDeclaredAmountPerShare" name="SubsequentEventDividendDeclaredAmountPerShare" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_SuretyBondsOutstanding" name="SuretyBondsOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_TerminationOfInterestRateSwapFairValueHedgesMember" name="TerminationOfInterestRateSwapFairValueHedgesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ThreePointFourPercentageOfSeniorUnsecuredNotesDueNovemberTwoThousandTwentyOneMember" name="ThreePointFourPercentageOfSeniorUnsecuredNotesDueNovemberTwoThousandTwentyOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ThreePointNinePercentSeniorUnsecuredNotesDueOctoberTwoThousandTwentyMember" name="ThreePointNinePercentSeniorUnsecuredNotesDueOctoberTwoThousandTwentyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_TotalNumberOfSecurityPositions" name="TotalNumberOfSecurityPositions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_TotalNumberOfViolationsAllegedByCdi" name="TotalNumberOfViolationsAllegedByCdi" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_TotalOptumMember" name="TotalOptumMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_TrademarksAndTechnologyMember" name="TrademarksAndTechnologyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_TwoThousandElevenMember" name="TwoThousandElevenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_TwoThousandFiveMember" name="TwoThousandFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_TwoThousandSixMember" name="TwoThousandSixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_TwoThousandTenMember" name="TwoThousandTenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_UndrawnLettersOfCredit" name="UndrawnLettersOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_UnitedhealthcareMember" name="UnitedhealthcareMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_UsefulLivesForPropertyEquipmentAndCapitalizedSoftwareAbstract" name="UsefulLivesForPropertyEquipmentAndCapitalizedSoftwareAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_UsefulLivesForPropertyEquipmentAndCapitalizedSoftwareTableTextBlock" name="UsefulLivesForPropertyEquipmentAndCapitalizedSoftwareTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_UsefulLivesTable" name="UsefulLivesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_VarianceOfRiskShare" name="VarianceOfRiskShare" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_ZeroCouponSeniorUnsecuredNotesDueNovemberTwoThousandTwentyTwoMember" name="ZeroCouponSeniorUnsecuredNotesDueNovemberTwoThousandTwentyTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| </xsd:schema> |