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| <link:definition> 2421404 - Disclosure - Goodwill and Intangible Assets Goodwill and Intangible Assets Gross carrying value, accumulated amortization and net carrying value of intangible assets (Details) </link:definition> |
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| <link:definition> 2421405 - Disclosure - Goodwill and Intangible Assets Goodwill and Intangible Assets Weighted-average useful lives assigned to finite-lived intangible assets acquired in business combinations (Details) </link:definition> |
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| <link:definition> 2406405 - Disclosure - Investments (Amortized Cost and Fair Value of Available-for-Sale Debt Securities by Contractual Maturity) (Details) </link:definition> |
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| <link:definition> 2406406 - 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:usedOn> link:calculationLink </link:usedOn> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="MedicalCostAndMedicalCostsPayable" roleURI="http://www.uhc.com/role/MedicalCostAndMedicalCostsPayable"> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:usedOn> link:presentationLink </link:usedOn> |
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| | | <link:roleType id="PropertyPlantAndCapitalizedSoftwareDetails" roleURI="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwareDetails"> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="QuarterlyFinancialDataDetails" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataDetails"> |
| <link:definition> 2429402 - Disclosure - Quarterly Financial Data (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="QuarterlyFinancialDataNotes" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataNotes"> |
| <link:definition> 2129100 - Disclosure - Quarterly Financial Data (Notes) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2429403 - Disclosure - Quarterly Financial Data Quarterly Financial Data (Unaudited) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="QuarterlyFinancialDataTables" roleURI="http://www.uhc.com/role/QuarterlyFinancialDataTables"> |
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| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ScheduleICondensedBalanceSheetDetails" roleURI="http://www.uhc.com/role/ScheduleICondensedBalanceSheetDetails"> |
| <link:definition> 2430403 - Disclosure - Schedule I Condensed Balance Sheet (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2430404 - Disclosure - Schedule I Condensed Balance Sheet (Parenthetical) (Details) </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ScheduleICondensedCashFlowDetails" roleURI="http://www.uhc.com/role/ScheduleICondensedCashFlowDetails"> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2430407 - Disclosure - Schedule I Maturities of Commercial Paper and Long-Term Debt (Details) </link:definition> |
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| <link:usedOn> link:presentationLink </link:usedOn> |
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| | | <link:roleType id="SegmentFinancialInformation" roleURI="http://www.uhc.com/role/SegmentFinancialInformation"> |
| <link:definition> 2128100 - Disclosure - Segment Financial Information </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="SegmentFinancialInformationDetails" roleURI="http://www.uhc.com/role/SegmentFinancialInformationDetails"> |
| <link:definition> 2428404 - 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="SegmentFinancialInformationSegmentFinancialInformationNarrativeDetails" roleURI="http://www.uhc.com/role/SegmentFinancialInformationSegmentFinancialInformationNarrativeDetails"> |
| <link:definition> 2428403 - Disclosure - Segment Financial Information Segment Financial Information (Narrative) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
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| | | <link:roleType id="SegmentFinancialInformationSegmentFinancialInformationPolicies" roleURI="http://www.uhc.com/role/SegmentFinancialInformationSegmentFinancialInformationPolicies"> |
| <link:definition> 2228201 - Disclosure - Segment Financial Information Segment Financial Information (Policies) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2328302 - Disclosure - Segment Financial Information (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 2126100 - Disclosure - Share-Based Compensation </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="ShareBasedCompensationOtherShareBasedCompensationDataDetails" roleURI="http://www.uhc.com/role/ShareBasedCompensationOtherShareBasedCompensationDataDetails"> |
| <link:definition> 2426406 - 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="ShareBasedCompensationRestrictedShareActivityDetails" roleURI="http://www.uhc.com/role/ShareBasedCompensationRestrictedShareActivityDetails"> |
| <link:definition> 2426405 - 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> |
| </link:roleType> |
| | | <link:roleType id="ShareBasedCompensationShareBasedCompensationPolicies" roleURI="http://www.uhc.com/role/ShareBasedCompensationShareBasedCompensationPolicies"> |
| <link:definition> 2226201 - Disclosure - Share-Based Compensation Share-Based Compensation (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="ShareBasedCompensationShareBasedCompensationPrincipalFairValueAssumptionsDetails" roleURI="http://www.uhc.com/role/ShareBasedCompensationShareBasedCompensationPrincipalFairValueAssumptionsDetails"> |
| <link:definition> 2426407 - 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> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="ShareBasedCompensationStockOptionAndSarActivityDetails" roleURI="http://www.uhc.com/role/ShareBasedCompensationStockOptionAndSarActivityDetails"> |
| <link:definition> 2426404 - Disclosure - Share-Based Compensation (Stock Option and SAR Activity) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="ShareBasedCompensationTables" roleURI="http://www.uhc.com/role/ShareBasedCompensationTables"> |
| <link:definition> 2326302 - Disclosure - Share-Based Compensation (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="ShareholdersEquityShareholdersEquity" roleURI="http://www.uhc.com/role/ShareholdersEquityShareholdersEquity"> |
| <link:definition> 2125100 - Disclosure - Shareholders' Equity Shareholder's Equity </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="ShareholdersEquityShareholdersEquityDetails" roleURI="http://www.uhc.com/role/ShareholdersEquityShareholdersEquityDetails"> |
| <link:definition> 2425403 - Disclosure - Shareholders' Equity Shareholder's Equity (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="ShareholdersEquityShareholdersEquityDividendsDetails" roleURI="http://www.uhc.com/role/ShareholdersEquityShareholdersEquityDividendsDetails"> |
| <link:definition> 2425404 - Disclosure - Shareholders' Equity Shareholder's Equity Dividends (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="ShareholdersEquityShareholdersEquityPolicies" roleURI="http://www.uhc.com/role/ShareholdersEquityShareholdersEquityPolicies"> |
| <link:definition> 2225201 - Disclosure - Shareholders' Equity Shareholders' Equity (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="ShareholdersEquityShareholdersEquityTables" roleURI="http://www.uhc.com/role/ShareholdersEquityShareholdersEquityTables"> |
| <link:definition> 2325302 - Disclosure - Shareholders' Equity Shareholder's Equity (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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| | | </xsd:appinfo> |
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| <xsd:element abstract="true" id="unh_A110CdiMember" name="A110CdiMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <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_A1625SeniorUnsecuredNotesDueMarch2019Member" name="A1625SeniorUnsecuredNotesDueMarch2019Member" 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 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_Acquisitionsofnoncontrollinginterestsandrelatedtaxeffects" name="Acquisitionsofnoncontrollinginterestsandrelatedtaxeffects" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" 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_AssetsMeasuredatFairValueonaRecurringBasisasaPercentageofTotalAssetsatFairValue" name="AssetsMeasuredatFairValueonaRecurringBasisasaPercentageofTotalAssetsatFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_AssetsUnderManagementPolicyPolicyTextBlock" name="AssetsUnderManagementPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses" name="AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
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| <xsd:element id="unh_AvailableforsaleDebtSecuritiesAccumulatedGrossUnrealizedGainbeforeTax" name="AvailableforsaleDebtSecuritiesAccumulatedGrossUnrealizedGainbeforeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
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| <xsd:element id="unh_AvailableforsaleEquitySecuritiesAccumulatedGrossUnrealizedGainbeforeTax" name="AvailableforsaleEquitySecuritiesAccumulatedGrossUnrealizedGainbeforeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
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| <xsd:element id="unh_AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss" name="AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_BalanceSheetParentheticalAbstract" name="BalanceSheetParentheticalAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
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| <xsd:element id="unh_BusinessCombinationConsiderationPaidinExcessoftheFairValueofNetTangibleAssets" name="BusinessCombinationConsiderationPaidinExcessoftheFairValueofNetTangibleAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CaliforniaClaimsProcessingMatterMember" name="CaliforniaClaimsProcessingMatterMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_Capitalcontributionstosubsidiaries" name="Capitalcontributionstosubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_CapitalizedSoftwareMember" name="CapitalizedSoftwareMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_CashDividendAnnualRatePerShare" name="CashDividendAnnualRatePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_CdiAnd1300Member" name="CdiAnd1300Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
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| <xsd:element abstract="true" id="unh_CdiAnd1450Member" name="CdiAnd1450Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
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| <xsd:element abstract="true" id="unh_CdiAnd1600Member" name="CdiAnd1600Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
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| <xsd:element id="unh_ChangesInProvisionForInsuredEventsRelatedToCurrentAndPriorYearTableTextBlock" name="ChangesInProvisionForInsuredEventsRelatedToCurrentAndPriorYearTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <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_CommitmentsAndContingenciesDisclosureAxis" name="CommitmentsAndContingenciesDisclosureAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" 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 id="unh_CommitmenttoHoldSharesYearFour" name="CommitmenttoHoldSharesYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_CommitmenttoRetainSharesYearFour" name="CommitmenttoRetainSharesYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="instant"/> |
| <xsd:element id="unh_CompanyRighttoCallSharesYearFour" name="CompanyRighttoCallSharesYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="instant"/> |
| <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_CondensedCashFlowAbstract" name="CondensedCashFlowAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" 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_CondensedStatementofOperationsAbstract" name="CondensedStatementofOperationsAbstract" 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 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_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_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_EmployeeStockPurchasePlanEsppDomain" name="EmployeeStockPurchasePlanEsppDomain" 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_ExcludingAmilParticipacoesS.A.Member" name="ExcludingAmilParticipacoesS.A.Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <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_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_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_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_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_GoodwillandIntangibleAssetsAmortizationExpenserelatingtoIntangibleAssetsAbstract" name="GoodwillandIntangibleAssetsAmortizationExpenserelatingtoIntangibleAssetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_GoodwillandIntangibleAssetsChangesintheCarryingAmountofGoodwillbyReportingSegmentAbstract" name="GoodwillandIntangibleAssetsChangesintheCarryingAmountofGoodwillbyReportingSegmentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_GoodwillandIntangibleAssetsGrosscarryingvalueaccumulatedamortizationandnetcarryingvalueofintangibleassetsAbstract" name="GoodwillandIntangibleAssetsGrosscarryingvalueaccumulatedamortizationandnetcarryingvalueofintangibleassetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_GoodwillandIntangibleAssetsWeightedaverageusefullivesassignedtofinitelivedintangibleassetsacquiredinbusinesscombinationsAbstract" name="GoodwillandIntangibleAssetsWeightedaverageusefullivesassignedtofinitelivedintangibleassetsacquiredinbusinesscombinationsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" 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 id="unh_HeldtomaturitySecuritiesAccumulatedUnrecognizedHoldingGain" name="HeldtomaturitySecuritiesAccumulatedUnrecognizedHoldingGain" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <xsd:element id="unh_HeldtomaturitySecuritiesAccumulatedUnrecognizedHoldingLoss" name="HeldtomaturitySecuritiesAccumulatedUnrecognizedHoldingLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/> |
| <xsd:element abstract="true" id="unh_IcpaAnd7610Member" name="IcpaAnd7610Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_IncomeTaxPoliciesOtherPolicyTextBlock" name="IncomeTaxPoliciesOtherPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_IncomeTaxesAbstract" name="IncomeTaxesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_IntercompanyNoteMember" name="IntercompanyNoteMember" 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="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 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 abstract="true" id="unh_MaturitiesofcommercialpaperandlongtermdebtAbstract" name="MaturitiesofcommercialpaperandlongtermdebtAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" 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_MedicalCostDevelopmentAbstract" name="MedicalCostDevelopmentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MedicalCostDevelopmentDisclosureTextBlock" name="MedicalCostDevelopmentDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element id="unh_MedicalCostsMedicalCostsPayableDisclosurePolicyPolicyTextBlock" name="MedicalCostsMedicalCostsPayableDisclosurePolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_MedicalCostsandMedicalCostsPayableRollforwardAbstract" name="MedicalCostsandMedicalCostsPayableRollforwardAbstract" 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 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="xbrli:durationItemType" 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 id="unh_People" name="People" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/> |
| <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_PreTwoThousandSevenMember" name="PreTwoThousandSevenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_PropertyEquipmentandCapitalizedSoftwarePropertyEquipmentandCapitalizedSoftwaretableAbstract" name="PropertyEquipmentandCapitalizedSoftwarePropertyEquipmentandCapitalizedSoftwaretableAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <xsd:element abstract="true" id="unh_PropertyPlantandCapitalizedSoftwareAbstract" name="PropertyPlantandCapitalizedSoftwareAbstract" 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_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_RSFAssetsUnderManagementAARPMember" name="RSFAssetsUnderManagementAARPMember" 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="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_ReclassificationofDebtfromShortTermtoLongTermMember" name="ReclassificationofDebtfromShortTermtoLongTermMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" 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_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_ScheduleICondensedBalanceSheetAbstract" name="ScheduleICondensedBalanceSheetAbstract" 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_SegmentFinancialInformationAbstract" name="SegmentFinancialInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" 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 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_ShareholdersRighttoPutinYearFour" name="ShareholdersRighttoPutinYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" 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_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_TotalRevenuesMember" name="TotalRevenuesMember" 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_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_ZeroCouponSeniorUnsecuredNotesDueNovemberTwoThousandTwentyTwoMember" name="ZeroCouponSeniorUnsecuredNotesDueNovemberTwoThousandTwentyTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/> |
| </xsd:schema> |