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| <link:definition> 2415406 - Disclosure - Goodwill and Intangible Assets Goodwill and Other Intangible Assets Weighted-average useful lives assigned to finite-lived intangible assets acquired in business combinations (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="GoodwillAndIntangibleAssetsGoodwillChangesInCarryingAmountOfGoodwillByReportingSegmentDetails" roleURI="http://www.uhc.com/role/GoodwillAndIntangibleAssetsGoodwillChangesInCarryingAmountOfGoodwillByReportingSegmentDetails"> |
| <link:definition> 2415403 - Disclosure - Goodwill and Intangible Assets Goodwill (Changes in the Carrying Amount of Goodwill by Reporting Segment) (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="GoodwillAndIntangibleAssetsGoodwillNetTangibleAssetsAcquiredInAmilAcquisitionDetails" roleURI="http://www.uhc.com/role/GoodwillAndIntangibleAssetsGoodwillNetTangibleAssetsAcquiredInAmilAcquisitionDetails"> |
| <link:definition> 2415404 - Disclosure - Goodwill and Intangible Assets Goodwill (Net Tangible Assets Acquired in Amil Acquisition) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="IncomeTaxes" roleURI="http://www.uhc.com/role/IncomeTaxes"> |
| <link:definition> 2118100 - Disclosure - Income Taxes </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> 2418403 - 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> |
| </link:roleType> |
| | | <link:roleType id="IncomeTaxesIncomeTaxPolicies" roleURI="http://www.uhc.com/role/IncomeTaxesIncomeTaxPolicies"> |
| <link:definition> 2218201 - Disclosure - Income Taxes Income Tax (Policies) </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="IncomeTaxesIncomeTaxTables" roleURI="http://www.uhc.com/role/IncomeTaxesIncomeTaxTables"> |
| <link:definition> 2318302 - Disclosure - Income Taxes Income Tax (Tables) </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="IncomeTaxesIncomeTaxesComponentsOfDeferredTaxAssetsAndLiabilitiesDetails" roleURI="http://www.uhc.com/role/IncomeTaxesIncomeTaxesComponentsOfDeferredTaxAssetsAndLiabilitiesDetails"> |
| <link:definition> 2418406 - Disclosure - Income Taxes Income taxes components of deferred tax assets and liabilities (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="IncomeTaxesIncomeTaxesComponentsOfProvisionForIncomeTaxesDetails" roleURI="http://www.uhc.com/role/IncomeTaxesIncomeTaxesComponentsOfProvisionForIncomeTaxesDetails"> |
| <link:definition> 2418404 - Disclosure - Income Taxes 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> |
| </link:roleType> |
| | | <link:roleType id="IncomeTaxesIncomeTaxesReconciliationOfBeginningAndEndingAmountOfUnrecognizedTaxBenefitsDetails" roleURI="http://www.uhc.com/role/IncomeTaxesIncomeTaxesReconciliationOfBeginningAndEndingAmountOfUnrecognizedTaxBenefitsDetails"> |
| <link:definition> 2418407 - Disclosure - Income Taxes 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> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="IncomeTaxesIncomeTaxesReconciliationOfTaxProvisionAtUSFederalStatutoryRateToProvisionForIncomeTaxesDetails" roleURI="http://www.uhc.com/role/IncomeTaxesIncomeTaxesReconciliationOfTaxProvisionAtUSFederalStatutoryRateToProvisionForIncomeTaxesDetails"> |
| <link:definition> 2418405 - Disclosure - Income Taxes Income Taxes Reconciliation of the tax provision at the U.S. Federal Statutory Rate to 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> |
| </link:roleType> |
| | | <link:roleType id="Investments" roleURI="http://www.uhc.com/role/Investments"> |
| <link:definition> 2105100 - Disclosure - Investments </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="InvestmentsAmortizedCostAndFairValueOfAvailableForSaleDebtSecuritiesByContractualMaturityDetails" roleURI="http://www.uhc.com/role/InvestmentsAmortizedCostAndFairValueOfAvailableForSaleDebtSecuritiesByContractualMaturityDetails"> |
| <link:definition> 2405405 - 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> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsAmortizedCostAndFairValueOfHeldToMaturityDebtSecuritiesByContractualMaturityDetails" roleURI="http://www.uhc.com/role/InvestmentsAmortizedCostAndFairValueOfHeldToMaturityDebtSecuritiesByContractualMaturityDetails"> |
| <link:definition> 2405406 - 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> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsFairValueOfAvailableForSaleInvestmentsWithGrossUnrealizedLossesByInvestmentTypeAndLengthOfTimeThatIndividualSecuritiesHaveBeenInContinuousUnrealizedLossPositionDetails" roleURI="http://www.uhc.com/role/InvestmentsFairValueOfAvailableForSaleInvestmentsWithGrossUnrealizedLossesByInvestmentTypeAndLengthOfTimeThatIndividualSecuritiesHaveBeenInContinuousUnrealizedLossPositionDetails"> |
| <link:definition> 2405407 - 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> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsFairValueOfMortgageBackedSecuritiesByCreditRatingOriginationDetails" roleURI="http://www.uhc.com/role/InvestmentsFairValueOfMortgageBackedSecuritiesByCreditRatingOriginationDetails"> |
| <link:definition> 2405404 - 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> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsNarrativeDetails" roleURI="http://www.uhc.com/role/InvestmentsNarrativeDetails"> |
| <link:definition> 2405402 - Disclosure - Investments (Narrative) (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="InvestmentsNetRealizedGainsDetails" roleURI="http://www.uhc.com/role/InvestmentsNetRealizedGainsDetails"> |
| <link:definition> 2405408 - 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> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsShortTermAndLongTermInvestmentsDetails" roleURI="http://www.uhc.com/role/InvestmentsShortTermAndLongTermInvestmentsDetails"> |
| <link:definition> 2405403 - 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> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsTables" roleURI="http://www.uhc.com/role/InvestmentsTables"> |
| <link:definition> 2305301 - Disclosure - Investments (Tables) </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="MedicalCostsAndMedicalCostsPayable" roleURI="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayable"> |
| <link:definition> 2116100 - 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> |
| </link:roleType> |
| | | <link:roleType id="MedicalCostsAndMedicalCostsPayableDetails" roleURI="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayableDetails"> |
| <link:definition> 2416402 - Disclosure - 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> |
| </link:roleType> |
| | | <link:roleType id="MedicalCostsAndMedicalCostsPayableMedicalCostDevelopmentTables" roleURI="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayableMedicalCostDevelopmentTables"> |
| <link:definition> 2316301 - Disclosure - Medical Costs and Medical Costs Payable Medical Cost Development (Tables) </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="MedicalCostsAndMedicalCostsPayableMedicalCostsAndMedicalCostsPayableRollforwardDetails" roleURI="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayableMedicalCostsAndMedicalCostsPayableRollforwardDetails"> |
| <link:definition> 2416403 - Disclosure - Medical Costs and Medical Costs Payable Medical Costs and Medical Costs Payable Rollforward (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="PropertyEquipmentAndCapitalizedSoftware" roleURI="http://www.uhc.com/role/PropertyEquipmentAndCapitalizedSoftware"> |
| <link:definition> 2114100 - 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> |
| </link:roleType> |
| | | <link:roleType id="PropertyEquipmentAndCapitalizedSoftwarePropertyEquipmentAndCapitalizedSoftwareNarrativeDetails" roleURI="http://www.uhc.com/role/PropertyEquipmentAndCapitalizedSoftwarePropertyEquipmentAndCapitalizedSoftwareNarrativeDetails"> |
| <link:definition> 2414402 - 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> |
| </link:roleType> |
| | | <link:roleType id="PropertyEquipmentAndCapitalizedSoftwarePropertyEquipmentAndCapitalizedSoftwareTableDetails" roleURI="http://www.uhc.com/role/PropertyEquipmentAndCapitalizedSoftwarePropertyEquipmentAndCapitalizedSoftwareTableDetails"> |
| <link:definition> 2414403 - 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> |
| </link:roleType> |
| | | <link:roleType id="PropertyEquipmentAndCapitalizedSoftwarePropertyEquipmentAndCapitalizedSoftwareTables" roleURI="http://www.uhc.com/role/PropertyEquipmentAndCapitalizedSoftwarePropertyEquipmentAndCapitalizedSoftwareTables"> |
| <link:definition> 2314301 - Disclosure - Property, Equipment, and Capitalized Software 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> |
| </link:roleType> |
| | | <link:roleType id="QuarterlyFinancialDataUnaudited" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnaudited"> |
| <link:definition> 2123100 - 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> |
| </link:roleType> |
| | | <link:roleType id="QuarterlyFinancialDataUnauditedQuarterlyFinancialDataUnauditedDetails" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedQuarterlyFinancialDataUnauditedDetails"> |
| <link:definition> 2423403 - Disclosure - Quarterly Financial Data (Unaudited) Quarterly Financial Data (Unaudited) (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="QuarterlyFinancialDataUnauditedQuarterlyFinancialDataUnauditedTables" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedQuarterlyFinancialDataUnauditedTables"> |
| <link:definition> 2323301 - Disclosure - Quarterly Financial Data (Unaudited) Quarterly Financial Data (Unaudited) (Tables) </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="ScheduleI" roleURI="http://www.uhc.com/role/ScheduleI"> |
| <link:definition> 2124100 - Disclosure - Schedule I </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="ScheduleIDetails" roleURI="http://www.uhc.com/role/ScheduleIDetails"> |
| <link:definition> 2424402 - Disclosure - Schedule I (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="ScheduleIParentCommercialPaperAndLongTermDebtMaturitiesOfCommercialPaperAndLongTermDebtDetails" roleURI="http://www.uhc.com/role/ScheduleIParentCommercialPaperAndLongTermDebtMaturitiesOfCommercialPaperAndLongTermDebtDetails"> |
| <link:definition> 2424407 - Disclosure - Schedule I Parent Commercial Paper and Long-Term Debt Maturities of commercial paper and long-term debt (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="ScheduleIScheduleICondensedBalanceSheetDetails" roleURI="http://www.uhc.com/role/ScheduleIScheduleICondensedBalanceSheetDetails"> |
| <link:definition> 2424403 - 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> |
| </link:roleType> |
| | | <link:roleType id="ScheduleIScheduleICondensedBalanchSheetParentheticalsDetails" roleURI="http://www.uhc.com/role/ScheduleIScheduleICondensedBalanchSheetParentheticalsDetails"> |
| <link:definition> 2424404 - Disclosure - Schedule I Schedule I Condensed Balanch Sheet (Parentheticals) (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="ScheduleIScheduleICondensedStatmentOfOperationsDetails" roleURI="http://www.uhc.com/role/ScheduleIScheduleICondensedStatmentOfOperationsDetails"> |
| <link:definition> 2424405 - Disclosure - Schedule I Schedule I Condensed Statment of Operations (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="ScheduleIScheduleIStatementOfCashFlowsDetails" roleURI="http://www.uhc.com/role/ScheduleIScheduleIStatementOfCashFlowsDetails"> |
| <link:definition> 2424406 - Disclosure - Schedule I Schedule I Statement of Cash Flows (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="ScheduleIScheduleITables" roleURI="http://www.uhc.com/role/ScheduleIScheduleITables"> |
| <link:definition> 2324301 - Disclosure - Schedule I Schedule I (Tables) </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="SegmentFinancialInformation" roleURI="http://www.uhc.com/role/SegmentFinancialInformation"> |
| <link:definition> 2122100 - 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> 2422403 - 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="SegmentFinancialInformationSegmentFinancialInformationNarrativeDetails" roleURI="http://www.uhc.com/role/SegmentFinancialInformationSegmentFinancialInformationNarrativeDetails"> |
| <link:definition> 2422404 - Disclosure - Segment Financial Information 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> |
| </link:roleType> |
| | | <link:roleType id="SegmentFinancialInformationSegmentFinancialInformationPolicies" roleURI="http://www.uhc.com/role/SegmentFinancialInformationSegmentFinancialInformationPolicies"> |
| <link:definition> 2222201 - Disclosure - Segment Financial Information Segment Financial Information (Policies) </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="SegmentFinancialInformationTables" roleURI="http://www.uhc.com/role/SegmentFinancialInformationTables"> |
| <link:definition> 2322302 - 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> |
| </link:roleType> |
| | | <link:roleType id="ShareBasedCompensation" roleURI="http://www.uhc.com/role/ShareBasedCompensation"> |
| <link:definition> 2120100 - 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> 2420403 - 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> |
| </link:roleType> |
| | | <link:roleType id="ShareBasedCompensationOtherShareBasedCompensationDataDetails" roleURI="http://www.uhc.com/role/ShareBasedCompensationOtherShareBasedCompensationDataDetails"> |
| <link:definition> 2420406 - Disclosure - Share-Based Compensation Other Share-Based Compensation Data (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="ShareBasedCompensationRecognitionPolicies" roleURI="http://www.uhc.com/role/ShareBasedCompensationRecognitionPolicies"> |
| <link:definition> 2220201 - Disclosure - Share-Based Compensation Recognition (Policies) </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> 2420405 - 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> 2420407 - 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> 2420404 - Disclosure - Share-Based Compensation (Stock Option and SAR Activity) (Details) </link:definition> |
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| | | <link:roleType id="ShareBasedCompensationTables" roleURI="http://www.uhc.com/role/ShareBasedCompensationTables"> |
| <link:definition> 2320302 - Disclosure - Share-Based Compensation (Tables) </link:definition> |
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| | | <link:roleType id="ShareholdersEquity" roleURI="http://www.uhc.com/role/ShareholdersEquity"> |
| <link:definition> 2119100 - Disclosure - Shareholder's Equity </link:definition> |
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| | | <link:roleType id="ShareholdersEquityShareholdersEquityDetails" roleURI="http://www.uhc.com/role/ShareholdersEquityShareholdersEquityDetails"> |
| <link:definition> 2419403 - Disclosure - Shareholder's Equity Shareholder's Equity (Details) </link:definition> |
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| | | <link:roleType id="ShareholdersEquityShareholdersEquityPolicies" roleURI="http://www.uhc.com/role/ShareholdersEquityShareholdersEquityPolicies"> |
| <link:definition> 2219201 - Disclosure - Shareholder's Equity Shareholder's Equity (Policies) </link:definition> |
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| <xsd:element abstract="true" id="unh_A110CdiSubsidiaryFloatingDebtDueDecember2014Member" name="A110CdiSubsidiaryFloatingDebtDueDecember2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_A1400SeniorUnsecuredNotesDueOctober2017Member" name="A1400SeniorUnsecuredNotesDueOctober2017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_A2750SeniorUnsecuredNotesDueFebruary2023Member" name="A2750SeniorUnsecuredNotesDueFebruary2023Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_A2875SeniorUnsecuredNotesDueMarch2022Member" name="A2875SeniorUnsecuredNotesDueMarch2022Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_A364Day10BillionCreditFacilityMember" name="A364Day10BillionCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_A3950SeniorUnsecuredNotesDueOctober2042Member" name="A3950SeniorUnsecuredNotesDueOctober2042Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_AaMember" name="AaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <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 abstract="true" id="unh_AcquisitionPercentagesAxis" name="AcquisitionPercentagesAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_AcquisitionPercentagesDomain" name="AcquisitionPercentagesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_AmilParticipacoesSAMember" name="AmilParticipacoesSAMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_AssetsUnderManagementPolicyPolicyTextBlock" name="AssetsUnderManagementPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_BasisOfPresentationAbstract" name="BasisOfPresentationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_BusinessAcquisitionPercentageOfVotingInterestsIntendedToBeAcquired" name="BusinessAcquisitionPercentageOfVotingInterestsIntendedToBeAcquired" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndCashEquivalents" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndCashEquivalents" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesForClaimsAndClaimsAdjustmentExpenseRelatedToAcquisitions" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesForClaimsAndClaimsAdjustmentExpenseRelatedToAcquisitions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLongTermDebtAndOtherLongTermLiabilities" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLongTermDebtAndOtherLongTermLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_CaliforniaClaimsProcessingMatterMember" name="CaliforniaClaimsProcessingMatterMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CapitalContributionMember" name="CapitalContributionMember" 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_CashAndInvestmentsHeldByNonRegulatedEntities" name="CashAndInvestmentsHeldByNonRegulatedEntities" 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_CashDividendAnnualRatePerShare" name="CashDividendAnnualRatePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_CashPaidOnExchangeOfLongTermDebt" name="CashPaidOnExchangeOfLongTermDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_CdiAggregatePenalty" name="CdiAggregatePenalty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_CdiAnd13SubsidiaryFloatingDebtDueOctober2013Member" name="CdiAnd13SubsidiaryFloatingDebtDueOctober2013Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CdiAnd145SubsidiaryFloatingDebtDueOctober2014Member" name="CdiAnd145SubsidiaryFloatingDebtDueOctober2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CdiAnd16SubsidiaryFloatingDebtDueOctober2015Member" name="CdiAnd16SubsidiaryFloatingDebtDueOctober2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ChangesInProvisionForInsuredEventsRelatedToCurrentAndPriorYearsTableTextBlock" name="ChangesInProvisionForInsuredEventsRelatedToCurrentAndPriorYearsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ChecksOutstanding" name="ChecksOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" 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_CommitmentToHoldSharesYears" name="CommitmentToHoldSharesYears" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_CommitmentToRetainSharesYears" name="CommitmentToRetainSharesYears" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CommitmentsAndContingenciesAbstract" name="CommitmentsAndContingenciesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" 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_CompanyRightToCallSharesInYears" name="CompanyRightToCallSharesInYears" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ComparableCompaniesMember" name="ComparableCompaniesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CondensedConsolidatedBalanceSheetParantheticalsAbstract" name="CondensedConsolidatedBalanceSheetParantheticalsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CreditFacilityNameAxis" name="CreditFacilityNameAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CreditFacilityNameDomain" name="CreditFacilityNameDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_CreditFacilityNumberOfDays" name="CreditFacilityNumberOfDays" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_DebtAbstract" name="DebtAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_DebtSubjectToAccelerationClausesMember" name="DebtSubjectToAccelerationClausesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_DeferredTaxAssetUnrecognizedTaxBenefits" name="DeferredTaxAssetUnrecognizedTaxBenefits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_DeferredTaxAssetsDomesticOther" name="DeferredTaxAssetsDomesticOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_DeferredTaxAssetsForeignOther" name="DeferredTaxAssetsForeignOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_DeferredTaxLiabilitiesForeignOther" name="DeferredTaxLiabilitiesForeignOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsForeign" name="DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsForeign" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_DeferredTaxLiabilitiesIntangibleAssetsDomestic" name="DeferredTaxLiabilitiesIntangibleAssetsDomestic" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" 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 id="unh_DisclosureOnGeographicAreasLongLivedAssetsInEntitysCountryOfDomicilePercentage" name="DisclosureOnGeographicAreasLongLivedAssetsInEntitysCountryOfDomicilePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_DisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToEntitysCountryOfDomicilePercentage" name="DisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToEntitysCountryOfDomicilePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" 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_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" 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_EstimatedLargestAggregatePenaltyIssuedByCdi" name="EstimatedLargestAggregatePenaltyIssuedByCdi" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_ExcludingAmilParticipacoesSAMember" name="ExcludingAmilParticipacoesSAMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ExtraordinaryDividends" name="ExtraordinaryDividends" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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_FivePercentSeniorUnsecuredNotesDueAugust2014Member" name="FivePercentSeniorUnsecuredNotesDueAugust2014Member" 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_FivePointFivePercentSeniorUnsecuredNotesDueNovember2012Member" name="FivePointFivePercentSeniorUnsecuredNotesDueNovember2012Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FivePointNineFiveSeniorUnsecuredNotesDueFebrurary2041Member" name="FivePointNineFiveSeniorUnsecuredNotesDueFebrurary2041Member" 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_FivePointThreeSevenFivePercentSeniorUnsecuredNotesDueMarch2016Member" name="FivePointThreeSevenFivePercentSeniorUnsecuredNotesDueMarch2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FivePointThreeSixPercentSeniorUnsecuredNotesDueNovember2016Member" name="FivePointThreeSixPercentSeniorUnsecuredNotesDueNovember2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FiveYear30BillionCreditFacilityMember" name="FiveYear30BillionCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ForeignCurrencyTranslationGainsLossesDomain" name="ForeignCurrencyTranslationGainsLossesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ForeignCurrencyTranslationLossesAxis" name="ForeignCurrencyTranslationLossesAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ForeignSubsidiaryDebtSecuritesMember" name="ForeignSubsidiaryDebtSecuritesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointEightSevenFivePercentSeniorUnsecuredNotesDueApril2013Member" name="FourPointEightSevenFivePercentSeniorUnsecuredNotesDueApril2013Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointEightSevenFivePercentSeniorUnsecuredNotesDueMarch2015Member" name="FourPointEightSevenFivePercentSeniorUnsecuredNotesDueMarch2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointEightSevenFiveSeniorUnsecuredNotesDueFebrurary2013Member" name="FourPointEightSevenFiveSeniorUnsecuredNotesDueFebrurary2013Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointSevenFiveSeniorUnsecuredNotesDueFebruray2014Member" name="FourPointSevenFiveSeniorUnsecuredNotesDueFebruray2014Member" 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_FourPointSixTwoFivePercentSeniorUnsecuredNotesDueNovember2041Member" name="FourPointSixTwoFivePercentSeniorUnsecuredNotesDueNovember2041Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointThreeSevenFivePercentSeniorUnsecuredNotesDueMarch2022MemberMember" name="FourPointThreeSevenFivePercentSeniorUnsecuredNotesDueMarch2022MemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FourPointThreeSevenFivePercentSeniorUnsecuredNotesDueMarch2042Member" name="FourPointThreeSevenFivePercentSeniorUnsecuredNotesDueMarch2042Member" 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_GoodwillAndIntangibleAssetsAbstract" name="GoodwillAndIntangibleAssetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_GoodwillNetTangibleAssetsAcquiredInAmilAcquisitionAbstract" name="GoodwillNetTangibleAssetsAcquiredInAmilAcquisitionAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_IncomeTaxAbstract" name="IncomeTaxAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_IncomeTaxPoliciesOtherPolicyTextBlock" name="IncomeTaxPoliciesOtherPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_IntangibleAssetsGross" name="IntangibleAssetsGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_IntercompanyNoteMember" name="IntercompanyNoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_InterestIncomeAndRealizedGainsRelatedToAssetsUnderManagement" name="InterestIncomeAndRealizedGainsRelatedToAssetsUnderManagement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" 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_InvestmentsAmortizedCost" name="InvestmentsAmortizedCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_InvestmentsGrossUnrealizedGains" name="InvestmentsGrossUnrealizedGains" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_InvestmentsGrossUnrealizedLosses" name="InvestmentsGrossUnrealizedLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_IpcaAnd761SubsidiaryFloatingDebtDueOctober2015Member" name="IpcaAnd761SubsidiaryFloatingDebtDueOctober2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_LiabilityForClaimsAndClaimsAdjustmentExpenseRelatedToAcquisitions" name="LiabilityForClaimsAndClaimsAdjustmentExpenseRelatedToAcquisitions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" 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_MandatedDiscountsOnGenericPrescriptionDrugsUnderMedicarePartDProgram" name="MandatedDiscountsOnGenericPrescriptionDrugsUnderMedicarePartDProgram" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_MarketApproachAxis" name="MarketApproachAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MarketApproachDomain" name="MarketApproachDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MaximumPercentageOfIndebtednessToTotalNetCapitalBankCovenant" name="MaximumPercentageOfIndebtednessToTotalNetCapitalBankCovenant" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_MedicalCostAndMedicalCostRollForwardLineItems" name="MedicalCostAndMedicalCostRollForwardLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MedicalCostAndMedicalCostRollForwardTable" name="MedicalCostAndMedicalCostRollForwardTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" 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 id="unh_MedicalCostsMedicalCostsPayableDisclosurePolicyPolicyTextBlock" name="MedicalCostsMedicalCostsPayableDisclosurePolicyPolicyTextBlock" 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 id="unh_MedicarePartDAnnualOutOfPocketMaximum" name="MedicarePartDAnnualOutOfPocketMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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:balance="debit" 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_MedicarePartDInitialCoverage" name="MedicarePartDInitialCoverage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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_Member" name="Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_NetUnrealizedGainsLossesOnInvestmentsAxis" name="NetUnrealizedGainsLossesOnInvestmentsAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_NetUnrealizedGainsOnInvestmentsDomain" name="NetUnrealizedGainsOnInvestmentsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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_NumberOfYearsOfRevolvingBankCredit" name="NumberOfYearsOfRevolvingBankCredit" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_OnePointEightSevenFivePercentSeniorUnsecuredNotesDueNovember2016Member" name="OnePointEightSevenFivePercentSeniorUnsecuredNotesDueNovember2016Member" 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 abstract="true" id="unh_OtherShareBasedCompensationDataAbstract" name="OtherShareBasedCompensationDataAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ParentDebtMaturityAbstract" name="ParentDebtMaturityAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_People" name="People" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_PolicyAcquisitionCostsPolicyPolicyTextBlock" name="PolicyAcquisitionCostsPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_PreTwoThousandSixMember" name="PreTwoThousandSixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_PropertyEquipmentAndCapitalizedSoftwareAbstract" name="PropertyEquipmentAndCapitalizedSoftwareAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_PropertyPlantAndEquipmentExcludingCapitalizedComputerSoftwareNet" name="PropertyPlantAndEquipmentExcludingCapitalizedComputerSoftwareNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_QuarterlyAmountSinceMay2011Member" name="QuarterlyAmountSinceMay2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_QuaterlyFinancialDataAbstract" name="QuaterlyFinancialDataAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_QuaterlyFinancialDataUnauditedAbstract" name="QuaterlyFinancialDataUnauditedAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_RateStabilizationFund" name="RateStabilizationFund" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_RecentTransactionsMember" name="RecentTransactionsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ReinsuranceReceivableNonCurrentMember" name="ReinsuranceReceivableNonCurrentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ReinsuranceRecievableCurrentMember" name="ReinsuranceRecievableCurrentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_RemainingNoncontrollingInterestMember" name="RemainingNoncontrollingInterestMember" 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_ScheduleIAbstract" name="ScheduleIAbstract" 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 id="unh_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitures" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitures" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ShareBasedCompensationArrangementByShareBasedPaymentPlanAwardOptionsAwardExercisablePeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentPlanAwardOptionsAwardExercisablePeriod" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ShareholdersEquityAbstract" name="ShareholdersEquityAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_ShareholdersRightToPutYears" name="ShareholdersRightToPutYears" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_SharesPurchasedOfNoncontrollingInterest" name="SharesPurchasedOfNoncontrollingInterest" 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_SixPointEightSevenFivePercentSeniorUnsecuredNotesDueFebruray2038Member" name="SixPointEightSevenFivePercentSeniorUnsecuredNotesDueFebruray2038Member" 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_SixPointSixTwoFivePercentSeniorUnsecuredNotesDueNovember2037Member" name="SixPointSixTwoFivePercentSeniorUnsecuredNotesDueNovember2037Member" 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 abstract="true" id="unh_StepAcquisitionAxis" name="StepAcquisitionAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_StepAcquisitionDomain" name="StepAcquisitionDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_StepAquisitionAxis" name="StepAquisitionAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_StepAquisitionDomain" name="StepAquisitionDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_StepFourMember" name="StepFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_StepOneMember" name="StepOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_StepThreeMember" name="StepThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_StepTwoMember" name="StepTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_StockOptionsAndSarsMemberMember" name="StockOptionsAndSarsMemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_SuretyBondsOutstanding" name="SuretyBondsOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_ThreePointEightSevenFivePercentSeniorUnsecuredNotesDueOctober2020Member" name="ThreePointEightSevenFivePercentSeniorUnsecuredNotesDueOctober2020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ThreePointThreeSevenFivePercentSeniorUnsecuredNotesDueNovember2021Member" name="ThreePointThreeSevenFivePercentSeniorUnsecuredNotesDueNovember2021Member" 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 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_TwoPointEightSevenFiveSeniorUnsecuredNotesDueMarch2022Member" name="TwoPointEightSevenFiveSeniorUnsecuredNotesDueMarch2022Member" 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_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 abstract="true" id="unh_TwoThousandTwelveMember" name="TwoThousandTwelveMember" 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:balance="debit" 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 id="unh_VarianceOfRiskShare" name="VarianceOfRiskShare" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ZeroCouponSeniorUnsecuredNotesDueNovemberTwoThousandTwentyTwoMember" name="ZeroCouponSeniorUnsecuredNotesDueNovemberTwoThousandTwentyTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| </xsd:schema> |