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| <link:definition> 2129100 - Disclosure - Goodwill and Intangible Assets (Notes) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2329301 - Disclosure - Goodwill and Intangible Assets (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:definition> 2429405 - Disclosure - Goodwill and 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> |
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| <link:definition> 2432404 - Disclosure - Income Tax Reconciliation of the tax provision at the U.S. Federal Statutory Rate (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
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| <link:definition> 2432405 - Disclosure - Income Taxes Components of Deferred Tax Assets and Liabilities (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
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| <link:definition> 2432402 - Disclosure - Income Taxes (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2132100 - Disclosure - Income Taxes (Notes) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2432406 - 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> 2432403 - Disclosure - Income Taxes Reconciliation of Provision for Income Taxes (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="IncomeTaxesTables" roleURI="http://www.uhc.com/role/IncomeTaxesTables"> |
| <link:definition> 2332301 - Disclosure - Income Taxes (Tables) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2422405 - 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> |
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| <link:definition> 2422406 - 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> |
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| <link:definition> 2422407 - 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> 2422404 - 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> |
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| | | <link:roleType id="InvestmentsNarrativeDetails" roleURI="http://www.uhc.com/role/InvestmentsNarrativeDetails"> |
| <link:definition> 2422402 - 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> 2422408 - 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:definition> 2122100 - Disclosure - Investments (Notes) </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> 2422403 - Disclosure - Investments (Short-Term and Long-Term Investments) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="InvestmentsTables" roleURI="http://www.uhc.com/role/InvestmentsTables"> |
| <link:definition> 2322301 - 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="MedicalCostReserveDevelopmentAndMedicalCostsPayableDetails" roleURI="http://www.uhc.com/role/MedicalCostReserveDevelopmentAndMedicalCostsPayableDetails"> |
| <link:definition> 2430402 - Disclosure - Medical Cost Reserve Development 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="MedicalCostReserveDevelopmentAndMedicalCostsPayableNotes" roleURI="http://www.uhc.com/role/MedicalCostReserveDevelopmentAndMedicalCostsPayableNotes"> |
| <link:definition> 2130101 - Disclosure - Medical Cost Reserve Development and Medical Costs Payable (Notes) </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="MedicalCostReserveDevelopmentAndMedicalCostsPayableTables" roleURI="http://www.uhc.com/role/MedicalCostReserveDevelopmentAndMedicalCostsPayableTables"> |
| <link:definition> 2330300 - Disclosure - Medical Cost Reserve Development 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="MedicalCostsAndMedicalCostsPayableRollforwardDetails" roleURI="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayableRollforwardDetails"> |
| <link:definition> 2430403 - Disclosure - Medical Costs and Medical Costs Payable Rollforward (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="PropertyPlantAndCapitalizedSoftwareDetails" roleURI="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwareDetails"> |
| <link:definition> 2428402 - Disclosure - Property, Plant, and Capitalized Software (Details) </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="PropertyPlantAndCapitalizedSoftwareNotes" roleURI="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwareNotes"> |
| <link:definition> 2128100 - Disclosure - Property, Plant, and Capitalized Software (Notes) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="PropertyPlantAndCapitalizedSoftwarePropertyPlantAndEquipmentTableDetails" roleURI="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwarePropertyPlantAndEquipmentTableDetails"> |
| <link:definition> 2428403 - Disclosure - Property, Plant, and Capitalized Software Property Plant and Equipment Table (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="PropertyPlantAndCapitalizedSoftwareTables" roleURI="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwareTables"> |
| <link:definition> 2328301 - Disclosure - Property, Plant, and Capitalized Software (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="QuarterlyFinancialDataUnauditedDetails" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedDetails"> |
| <link:definition> 2437402 - Disclosure - 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> |
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| | | <link:roleType id="QuarterlyFinancialDataUnauditedNotes" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedNotes"> |
| <link:definition> 2137100 - Disclosure - Quarterly Financial Data (Unaudited) (Notes) </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="QuarterlyFinancialDataUnauditedTables" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedTables"> |
| <link:definition> 2337301 - Disclosure - Quarterly Financial Data (Unaudited) (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ScheduleIBalanceSheetDocumentDetails" roleURI="http://www.uhc.com/role/ScheduleIBalanceSheetDocumentDetails"> |
| <link:definition> 2438404 - Disclosure - Schedule I Balance Sheet Document (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ScheduleICondensedBalanceSheetsDetails" roleURI="http://www.uhc.com/role/ScheduleICondensedBalanceSheetsDetails"> |
| <link:definition> 2438403 - Disclosure - Schedule I Condensed Balance Sheets (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2438405 - Disclosure - Schedule I Condensed Statement of Comprehensive Income (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ScheduleIDetails" roleURI="http://www.uhc.com/role/ScheduleIDetails"> |
| <link:definition> 2438402 - Disclosure - Schedule I (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ScheduleIMaturitiesOfCommercialPaperAndLongTermDebtDetails" roleURI="http://www.uhc.com/role/ScheduleIMaturitiesOfCommercialPaperAndLongTermDebtDetails"> |
| <link:definition> 2438407 - Disclosure - Schedule I Maturities of Commercial Paper and Long-Term Debt (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ScheduleINotes" roleURI="http://www.uhc.com/role/ScheduleINotes"> |
| <link:definition> 2138100 - Disclosure - Schedule I (Notes) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ScheduleIStatementOfCashFlowsDetails" roleURI="http://www.uhc.com/role/ScheduleIStatementOfCashFlowsDetails"> |
| <link:definition> 2438406 - Disclosure - Schedule I Statement of Cash Flows (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2338301 - Disclosure - Schedule I (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="SegmentFinancialInformationDetails" roleURI="http://www.uhc.com/role/SegmentFinancialInformationDetails"> |
| <link:definition> 2436403 - Disclosure - Segment Financial Information (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="SegmentFinancialInformationNarrativeDetails" roleURI="http://www.uhc.com/role/SegmentFinancialInformationNarrativeDetails"> |
| <link:definition> 2436402 - Disclosure - Segment Financial Information (Narrative) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="SegmentFinancialInformationNotes" roleURI="http://www.uhc.com/role/SegmentFinancialInformationNotes"> |
| <link:definition> 2136100 - Disclosure - Segment Financial Information (Notes) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="SegmentFinancialInformationTables" roleURI="http://www.uhc.com/role/SegmentFinancialInformationTables"> |
| <link:definition> 2336301 - Disclosure - Segment Financial Information (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ShareBasedCompensationNarrativeDetails" roleURI="http://www.uhc.com/role/ShareBasedCompensationNarrativeDetails"> |
| <link:definition> 2434402 - Disclosure - Share-Based Compensation Narrative (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ShareBasedCompensationNotes" roleURI="http://www.uhc.com/role/ShareBasedCompensationNotes"> |
| <link:definition> 2134100 - Disclosure - Share-Based Compensation (Notes) </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:definition> 2434405 - 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> |
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| <link:definition> 2434404 - Disclosure - Share-Based Compensation (Restricted Share Activity) (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2434406 - Disclosure - Share-Based Compensation (Share-Based Compensation Principal Fair Value Assumptions) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
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| <link:definition> 2434403 - Disclosure - Share-Based Compensation (Stock Option and SAR Activity) (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2334301 - 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> 2433402 - Disclosure - Shareholders' Equity (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2433403 - Disclosure - Shareholders' Equity Dividends Paid (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2133100 - Disclosure - Shareholders' Equity (Notes) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="ShareholdersEquityTables" roleURI="http://www.uhc.com/role/ShareholdersEquityTables"> |
| <link:definition> 2333301 - Disclosure - Shareholders' Equity (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | </xsd:appinfo> |
| | </xsd:annotation> |
| <xsd:element abstract="true" id="unh_A0850SeniorUnsecuredNotesDueOctober2015Member" name="A0850SeniorUnsecuredNotesDueOctober2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_A1.400SeniorUnsecuredNotesDueDecember2017Member" name="A1.400SeniorUnsecuredNotesDueDecember2017Member" 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_A1625SeniorUnsecuredNotesDueMarch2019Member" name="A1625SeniorUnsecuredNotesDueMarch2019Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_A2.300SeniorUnsecuredNotesDueDecember2019Member" name="A2.300SeniorUnsecuredNotesDueDecember2019Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_A2.875SeniorUnsecuredNotesDueDecember2021Member" name="A2.875SeniorUnsecuredNotesDueDecember2021Member" 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_A2875SeniorUnsecuredNotesDueMarch2023Member" name="A2875SeniorUnsecuredNotesDueMarch2023Member" 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_A4250SeniorUnsecuredNotesDueMarch2043Member" name="A4250SeniorUnsecuredNotesDueMarch2043Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_AARPAssetsUnderManagementPolicyTextBlock" name="AARPAssetsUnderManagementPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_AARPMember" name="AARPMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_AMember" name="AMember" 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 id="unh_AccountsPayableandAccruedLiabilitiesPolicyTextBlock" name="AccountsPayableandAccruedLiabilitiesPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_Acquisitionsofnoncontrollinginterestsandrelatedtaxeffects" name="Acquisitionsofnoncontrollinginterestsandrelatedtaxeffects" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="unh_AssetsMeasuredatFairValueonaRecurringBasisasaPercentageofTotalAssetsatFairValue" name="AssetsMeasuredatFairValueonaRecurringBasisasaPercentageofTotalAssetsatFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_AssetsundermanagementAxis" name="AssetsundermanagementAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_AssetsundermanagementDomain" name="AssetsundermanagementDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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 abstract="true" id="unh_CaliforniaAdministrativeLawJudgeMember" name="CaliforniaAdministrativeLawJudgeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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 abstract="true" id="unh_CaliforniaInsuranceCommissionerMember" name="CaliforniaInsuranceCommissionerMember" 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_CashDividendAnnualRatePerShare" name="CashDividendAnnualRatePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_ChecksOutstandingMember" name="ChecksOutstandingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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 abstract="true" id="unh_CommercialPaperandLongTermDebtAbstract" name="CommercialPaperandLongTermDebtAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" 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_ComparableCompaniesMember" name="ComparableCompaniesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CompensatoryDamagesMember" name="CompensatoryDamagesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CorporateandEliminationsMember" name="CorporateandEliminationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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="duration"/> |
| <xsd:element abstract="true" id="unh_DebtAbstract" name="DebtAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_DeferredTaxAssetOtherDomestic" name="DeferredTaxAssetOtherDomestic" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_DeferredTaxAssetOtherForeign" name="DeferredTaxAssetOtherForeign" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <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_DeferredTaxAssetsDeferredTaxExpenseLongtermliabilities" name="DeferredTaxAssetsDeferredTaxExpenseLongtermliabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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 abstract="true" id="unh_DescriptionofBusinessAbstract" name="DescriptionofBusinessAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_DisclosureonGeographicAreasPercentageofLongLivedAssets" name="DisclosureonGeographicAreasPercentageofLongLivedAssets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_DisclosureonGeographicAreasPercentageofRevenuefromExternalCustomers" name="DisclosureonGeographicAreasPercentageofRevenuefromExternalCustomers" 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_DividendFrequencyDomain" name="DividendFrequencyDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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 id="unh_EffectiveIncomeTaxRateNondeductibleIndustryTax" name="EffectiveIncomeTaxRateNondeductibleIndustryTax" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" 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 abstract="true" id="unh_EndoscopyCenterOfSouthernNevadaLitigationMember" name="EndoscopyCenterOfSouthernNevadaLitigationMember" 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_ExternalCustomersMember" name="ExternalCustomersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ExtraordinaryDividendsMember" name="ExtraordinaryDividendsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FairValueAbstract" name="FairValueAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_FairValueAdjustmentsForNonfinancialAssetsAndLiabilitiesMeasuredAtFairValueOrFinancialAssetsandLiabilitiesNonRecurringBasis" name="FairValueAdjustmentsForNonfinancialAssetsAndLiabilitiesMeasuredAtFairValueOrFinancialAssetsandLiabilitiesNonRecurringBasis" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_FineImposedDomain" name="FineImposedDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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_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_FourPointEightSevenFivePercentSeniorUnsecuredNotesDueMarch2015Member" name="FourPointEightSevenFivePercentSeniorUnsecuredNotesDueMarch2015Member" 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_FourPointThreeSevenFivePercentSeniorUnsecuredNotesDueMarch2042Member" name="FourPointThreeSevenFivePercentSeniorUnsecuredNotesDueMarch2042Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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_HealthReformAxis" name="HealthReformAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_HealthReformDomain" name="HealthReformDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_HedgedItemAxis" name="HedgedItemAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_HedgedItemDomain" name="HedgedItemDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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_IndustryTaxAccountingPolicyPolicyTextBlock" name="IndustryTaxAccountingPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_IndustryTaxMember" name="IndustryTaxMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_IntercompanyNotesMember" name="IntercompanyNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_IntersegmentMember" name="IntersegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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="credit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_InvestmentsGrossUnrealizedLosses" name="InvestmentsGrossUnrealizedLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_LitigationDamagesAxis" name="LitigationDamagesAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_LitigationDamagesDomain" name="LitigationDamagesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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 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 id="unh_MedicalCostDevelopmentDisclosureTextBlock" name="MedicalCostDevelopmentDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" 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_MedicalReserveDevelopmentAbstract" name="MedicalReserveDevelopmentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" 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 id="unh_NonrefundableIndustryTaxExpense" name="NonrefundableIndustryTaxExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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 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_PostTrialMotionsReducedOverallAwardMember" name="PostTrialMotionsReducedOverallAwardMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_PreTwoThousandNineMember" name="PreTwoThousandNineMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_PremiumStabilizationProgramsAccountingPolicyPolicyTextBlock" name="PremiumStabilizationProgramsAccountingPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" 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_PunitiveDamagesMember" name="PunitiveDamagesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_QuarterlyFinancialDataUnauditedAbstract" name="QuarterlyFinancialDataUnauditedAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_QuarterlyFinancialDataUnauditedMember" name="QuarterlyFinancialDataUnauditedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_QuarterlyfinancialdataAxis" name="QuarterlyfinancialdataAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_QuarterlyfinancialdataDomain" name="QuarterlyfinancialdataDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_RateStabilizationFund" name="RateStabilizationFund" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <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_RecommendationbyAdministrativeLawJudgeAxis" name="RecommendationbyAdministrativeLawJudgeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" 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_ReinsuranceReceivableNoncurrentMember" name="ReinsuranceReceivableNoncurrentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_RevenuesMember" name="RevenuesMember" 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 abstract="true" id="unh_ScheduleIBalanceSheetParentheticalAbstract" name="ScheduleIBalanceSheetParentheticalAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ScheduleIMaturitiesofCommercialPaperandLongTermDebtAbstract" name="ScheduleIMaturitiesofCommercialPaperandLongTermDebtAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" 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_SeniorUnsecuredFloatingRateNotesDueAugust2014Member" name="SeniorUnsecuredFloatingRateNotesDueAugust2014Member" 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 abstract="true" id="unh_ShareRepurchasesTable" name="ShareRepurchasesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_ShareRepurchasesTableLineItems" name="ShareRepurchasesTableLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" 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 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_StockOptionsAndSarsMemberMember" name="StockOptionsAndSarsMemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_SupplementalInformationForCurrentYearClaimsandClaimsAdjustmentExpense" name="SupplementalInformationForCurrentYearClaimsandClaimsAdjustmentExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <xsd:element id="unh_SupplementalInformationForPriorYearClaimsandClaimsAdjustmentExpense" name="SupplementalInformationForPriorYearClaimsandClaimsAdjustmentExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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_TwoThousandFourteenMember" name="TwoThousandFourteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_TwoThousandNineMember" name="TwoThousandNineMember" 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_TwoThousandThirteenMember" name="TwoThousandThirteenMember" 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 abstract="true" id="unh_UnregulatedsubsidiariesMember" name="UnregulatedsubsidiariesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_UsefulLifeMember" name="UsefulLifeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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> |