SEC Info  
    Home      Search      My Interests      Help      Sign In      Please Sign In

Unitedhealth Group Inc – ‘10-K’ for 12/31/14 – ‘EX-101.CAL’

On:  Tuesday, 2/10/15, at 4:45pm ET   ·   For:  12/31/14   ·   Accession #:  731766-15-7   ·   File #:  1-10864

Previous ‘10-K’:  ‘10-K’ on 2/12/14 for 12/31/13   ·   Next:  ‘10-K’ on 2/9/16 for 12/31/15   ·   Latest:  ‘10-K’ on 2/28/24 for 12/31/23

Find Words in Filings emoji
 
  in    Show  and   Hints

  As Of               Filer                 Filing    For·On·As Docs:Size

 2/10/15  Unitedhealth Group Inc            10-K       12/31/14  111:26M

Annual Report   —   Form 10-K   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   1.49M 
 2: EX-10.2     Material Contract                                   HTML     35K 
 3: EX-10.3     Material Contract                                   HTML     83K 
 4: EX-10.32    Material Contract                                   HTML     57K 
 6: EX-21.1     Subsidiaries List                                   HTML    128K 
 7: EX-23.1     Consent of Experts or Counsel                       HTML     34K 
 8: EX-24.1     Power of Attorney                                   HTML     40K 
 5: EX-12.1     Statement re: Computation of Ratios                 HTML     45K 
 9: EX-31.1     Certification -- §302 - SOA'02                      HTML     48K 
10: EX-32.1     Certification -- §906 - SOA'02                      HTML     36K 
76: R1          Document and Entity Information Document            HTML     63K 
62: R2          Consolidated Balance Sheets                         HTML    152K 
73: R3          Consolidated Balance Sheet (Parenthetical)          HTML     68K 
80: R4          Consolidated Statements of Operations               HTML    123K 
101: R5          Consolidated Statements of Comprehensive Income     HTML     82K  
64: R6          Consolidated Statements of Changes in               HTML    113K 
                Shareholders' Equity                                             
72: R7          Consolidated Statements of Cash Flows               HTML    162K 
55: R8          Description of Business (Notes)                     HTML     33K 
45: R9          Basis of Presentation, Uses of Estimates and        HTML    128K 
                Significant Accounting Policies (Notes)                          
103: R10         Investments (Notes)                                 HTML    297K  
82: R11         Fair Value (Notes)                                  HTML    336K 
81: R12         Property, Plant, and Capitalized Software (Notes)   HTML     55K 
88: R13         Goodwill and Intangible Assets (Notes)              HTML    120K 
89: R14         Medical Cost Reserve Development and Medical Costs  HTML     61K 
                Payable (Notes)                                                  
86: R15         Commercial Paper and Long-Term Debt (Notes)         HTML    222K 
90: R16         Income Taxes (Notes)                                HTML    155K 
74: R17         Shareholders' Equity (Notes)                        HTML     57K 
77: R18         Share-Based Compensation (Notes)                    HTML    115K 
84: R19         Commitments and Contingencies (Notes)               HTML     58K 
111: R20         Segment Financial Information (Notes)               HTML    317K  
97: R21         Quarterly Financial Data (Unaudited) (Notes)        HTML     85K 
68: R22         Schedule I (Notes)                                  HTML    191K 
83: R23         Basis of Presentation, Uses of Estimates and        HTML    195K 
                Significant Accounting Policies (Policies)                       
70: R24         Fair Value Fair Value (Policies)                    HTML     48K 
36: R25         Basis of Presentation, Uses of Estimates and        HTML     88K 
                Significant Accounting Policies (Tables)                         
98: R26         Investments (Tables)                                HTML    300K 
107: R27         Fair Value (Tables)                                 HTML    329K  
50: R28         Property, Plant, and Capitalized Software (Tables)  HTML     53K 
49: R29         Goodwill and Intangible Assets (Tables)             HTML    123K 
53: R30         Medical Cost Reserve Development and Medical Costs  HTML     62K 
                Payable (Tables)                                                 
54: R31         Commercial Paper and Long-Term Debt (Tables)        HTML    226K 
57: R32         Income Taxes (Tables)                               HTML    177K 
25: R33         Shareholders' Equity (Tables)                       HTML     41K 
95: R34         Share-Based Compensation (Tables)                   HTML    115K 
66: R35         Commitments and Contingencies Commitments and       HTML     43K 
                Contingencies (Tables)                                           
69: R36         Segment Financial Information (Tables)              HTML    302K 
40: R37         Quarterly Financial Data (Unaudited) (Tables)       HTML     84K 
110: R38         Schedule I (Tables)                                 HTML    197K  
17: R39         Basis of Presentation, Uses of Estimates and        HTML     84K 
                Significant Accounting Policies (Details)                        
59: R40         Basis of Presentation, Uses of Estimates and        HTML     46K 
                Significant Accounting Policies Medicare Part D                  
                (Details)                                                        
100: R41         Basis of Presentation, Uses of Estimates and        HTML     45K  
                Significant Accounting Policies Useful lives for                 
                property, equipment and capitalized software                     
                (Details)                                                        
38: R42         Basis of Presentation, Uses of Estimates and        HTML     53K 
                Significant Accounting Policies Redeemable                       
                Noncontrolling Interests (Details)                               
48: R43         Investments (Narrative) (Details)                   HTML     36K 
52: R44         Investments (Short-Term and Long-Term Investments)  HTML    137K 
                (Details)                                                        
63: R45         Investments (Fair Value of Mortgage-Backed          HTML    114K 
                Securities by Credit Rating Origination) (Details)               
24: R46         Investments (Amortized Cost and Fair Value of       HTML     87K 
                Available-for-Sale Debt Securities by Contractual                
                Maturity) (Details)                                              
44: R47         Investments (Amortized Cost and Fair Value of       HTML     66K 
                Held-To-Maturity Debt Securities by Contractual                  
                Maturity) (Details)                                              
19: R48         Investments (Fair Value of Available-For-Sale       HTML    117K 
                Investments with Gross Unrealized Losses by                      
                Investment Type and Length of Time That Individual               
                Securities Have Been in a Continuous Unrealized                  
                Loss Position) (Details)                                         
99: R49         Investments (Net Realized Gains) (Details)          HTML     72K 
37: R50         Fair Value (Narrative) (Details)                    HTML     61K 
96: R51         Fair Value (Financial Assets and Liabilities,       HTML    145K 
                Excluding AARP, Measured at Fair Value on a                      
                Recurring Basis) (Details)                                       
41: R52         Fair Value (Financial Assets and Liabilities,       HTML    127K 
                Excluding AARP, Not Measured at Fair Value on a                  
                Recurring Basis) (Details)                                       
60: R53         Fair Value (Reconciliation of Assets Measured at    HTML     98K 
                Fair Value on a Recurring Basis Using Level 3                    
                Inputs) (Details)                                                
18: R54         Fair Value Fair Value Inputs Assets Quantitative    HTML     52K 
                Information (Details)                                            
22: R55         Fair Value (Assets and Liabilities measured at      HTML    189K 
                fair value on a recurring basis) (Details)                       
51: R56         Property, Plant, and Capitalized Software           HTML     38K 
                (Details)                                                        
29: R57         Property, Plant, and Capitalized Software Property  HTML     62K 
                Plant and Equipment Table (Details)                              
104: R58         Goodwill and Intangible Assets (Details)            HTML     36K  
65: R59         Goodwill and Intangible Assets Changes in the       HTML     64K 
                Carrying Amount of Goodwill by Reporting Segment                 
                (Details)                                                        
87: R60         Goodwill and Intangible Assets Gross carrying       HTML     63K 
                value, accumulated amortization and net carrying                 
                value of intangible assets (Details)                             
43: R61         Goodwill and Intangible Assets Weighted-average     HTML     48K 
                useful lives assigned to finite-lived intangible                 
                assets acquired in business combinations (Details)               
46: R62         Goodwill and Intangible Assets Amortization         HTML     45K 
                Expense relating to Intangible Assets (Details)                  
94: R63         Medical Costs and Medical Costs Payable             HTML     58K 
                Rollforward (Details)                                            
91: R64         Commercial Paper and Long-Term Debt (Narrative)     HTML     73K 
                (Details)                                                        
67: R65         Commercial Paper and Long-Term Debt (Details)       HTML    271K 
93: R66         Commercial Paper and Long-Term Debt Maturities of   HTML     51K 
                commercial paper and long-term debt (Details)                    
42: R67         Commercial Paper and Long-Term Debt Fair Value      HTML     46K 
                Hedges Statement of Financial Position Location                  
                (Details)                                                        
71: R68         Commercial Paper and Long-Term Debt Fair Value      HTML     48K 
                Hedges Effect of Changes in Fair Value Hedges on                 
                Income (Details)                                                 
106: R69         Income Taxes (Details)                              HTML     64K  
21: R70         Income Taxes Reconciliation of Provision for        HTML     54K 
                Income Taxes (Details)                                           
35: R71         Income Tax Reconciliation of the tax provision at   HTML     84K 
                the U.S. Federal Statutory Rate (Details)                        
61: R72         Income Taxes Components of Deferred Tax Assets and  HTML    102K 
                Liabilities (Details)                                            
27: R73         Income Taxes Reconciliation of the beginning and    HTML     53K 
                ending amount of unrecognized tax benefits                       
                (Details)                                                        
109: R74         Shareholders' Equity (Details)                      HTML     70K  
39: R75         Shareholders' Equity Dividends Paid (Details)       HTML     38K 
30: R76         Share-Based Compensation Narrative (Details)        HTML     44K 
34: R77         Share-Based Compensation (Stock Option and SAR      HTML     86K 
                Activity) (Details)                                              
23: R78         Share-Based Compensation (Restricted Share          HTML     53K 
                Activity) (Details)                                              
26: R79         Share-Based Compensation Other Share-Based          HTML     75K 
                Compensation Data (Details)                                      
78: R80         Share-Based Compensation (Share-Based Compensation  HTML     64K 
                Principal Fair Value Assumptions) (Details)                      
32: R81         Commitments and Contingencies (Details)             HTML     70K 
105: R82         Commitments and Contingencies Future Lease          HTML     50K  
                Payments (Details)                                               
58: R83         Segment Financial Information (Narrative)           HTML     49K 
                (Details)                                                        
85: R84         Segment Financial Information (Details)             HTML    261K 
92: R85         Quarterly Financial Data (Unaudited) (Details)      HTML     87K 
31: R86         Schedule I (Details)                                HTML     65K 
33: R87         Schedule I Condensed Balance Sheets (Details)       HTML    132K 
102: R88         Schedule I Balance Sheet Document (Details)         HTML     64K  
28: R89         Schedule I Condensed Statement of Comprehensive     HTML     88K 
                Income (Details)                                                 
79: R90         Schedule I Statement of Cash Flows (Details)        HTML    127K 
75: R91         Schedule I Maturities of Commercial Paper and       HTML     56K 
                Long-Term Debt (Details)                                         
108: XML         IDEA XML File -- Filing Summary                      XML    169K  
20: EXCEL       IDEA Workbook of Financial Reports                  XLSX    447K 
47: EXCEL       IDEA Workbook of Financial Reports (.xls)            XLS   4.36M 
11: EX-101.INS  XBRL Instance -- unh-20141231                        XML   6.68M 
13: EX-101.CAL  XBRL Calculations -- unh-20141231_cal                XML    313K 
14: EX-101.DEF  XBRL Definitions -- unh-20141231_def                 XML   1.53M 
15: EX-101.LAB  XBRL Labels -- unh-20141231_lab                      XML   2.64M 
16: EX-101.PRE  XBRL Presentations -- unh-20141231_pre               XML   1.75M 
12: EX-101.SCH  XBRL Schema -- unh-20141231                          XSD    252K 
56: ZIP         XBRL Zipped Folder -- 0000731766-15-000007-xbrl      Zip    458K 


‘EX-101.CAL’   —   XBRL Calculations — unh-20141231_cal


This Exhibit is an XBRL XML File.


                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<!-- XBRL Document Created with Wdesk from Workiva, formerly WebFilings -->
<!-- -->
<linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<roleRef roleURI="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesDetails" xlink:href="unh-20141231.xsd#BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesMedicarePartDDetails" xlink:href="unh-20141231.xsd#BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesMedicarePartDDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesNotes" xlink:href="unh-20141231.xsd#BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesPolicies" xlink:href="unh-20141231.xsd#BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesPolicies" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesRedeemableNoncontrollingInterestsDetails" xlink:href="unh-20141231.xsd#BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesRedeemableNoncontrollingInterestsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesTables" xlink:href="unh-20141231.xsd#BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesUsefulLivesForPropertyEquipmentAndCapitalizedSoftwareDetails" xlink:href="unh-20141231.xsd#BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesUsefulLivesForPropertyEquipmentAndCapitalizedSoftwareDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommercialPaperAndLongTermDebtDetails" xlink:href="unh-20141231.xsd#CommercialPaperAndLongTermDebtDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommercialPaperAndLongTermDebtFairValueHedgesEffectOfChangesInFairValueHedgesOnIncomeDetails" xlink:href="unh-20141231.xsd#CommercialPaperAndLongTermDebtFairValueHedgesEffectOfChangesInFairValueHedgesOnIncomeDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommercialPaperAndLongTermDebtFairValueHedgesStatementOfFinancialPositionLocationDetails" xlink:href="unh-20141231.xsd#CommercialPaperAndLongTermDebtFairValueHedgesStatementOfFinancialPositionLocationDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommercialPaperAndLongTermDebtMaturitiesOfCommercialPaperAndLongTermDebtDetails" xlink:href="unh-20141231.xsd#CommercialPaperAndLongTermDebtMaturitiesOfCommercialPaperAndLongTermDebtDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommercialPaperAndLongTermDebtNarrativeDetails" xlink:href="unh-20141231.xsd#CommercialPaperAndLongTermDebtNarrativeDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommercialPaperAndLongTermDebtNotes" xlink:href="unh-20141231.xsd#CommercialPaperAndLongTermDebtNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommercialPaperAndLongTermDebtTables" xlink:href="unh-20141231.xsd#CommercialPaperAndLongTermDebtTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommitmentsAndContingenciesCommitmentsAndContingenciesTables" xlink:href="unh-20141231.xsd#CommitmentsAndContingenciesCommitmentsAndContingenciesTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommitmentsAndContingenciesDetails" xlink:href="unh-20141231.xsd#CommitmentsAndContingenciesDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommitmentsAndContingenciesFutureLeasePaymentsDetails" xlink:href="unh-20141231.xsd#CommitmentsAndContingenciesFutureLeasePaymentsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/CommitmentsAndContingenciesNotes" xlink:href="unh-20141231.xsd#CommitmentsAndContingenciesNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ConsolidatedBalanceSheetParenthetical" xlink:href="unh-20141231.xsd#ConsolidatedBalanceSheetParenthetical" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ConsolidatedBalanceSheets" xlink:href="unh-20141231.xsd#ConsolidatedBalanceSheets" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="unh-20141231.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ConsolidatedStatementsOfChangesInShareholdersEquity" xlink:href="unh-20141231.xsd#ConsolidatedStatementsOfChangesInShareholdersEquity" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:href="unh-20141231.xsd#ConsolidatedStatementsOfComprehensiveIncome" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ConsolidatedStatementsOfOperations" xlink:href="unh-20141231.xsd#ConsolidatedStatementsOfOperations" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/DescriptionOfBusinessNotes" xlink:href="unh-20141231.xsd#DescriptionOfBusinessNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/DocumentAndEntityInformationDocument" xlink:href="unh-20141231.xsd#DocumentAndEntityInformationDocument" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/FairValueAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails" xlink:href="unh-20141231.xsd#FairValueAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/FairValueFairValueInputsAssetsQuantitativeInformationDetails" xlink:href="unh-20141231.xsd#FairValueFairValueInputsAssetsQuantitativeInformationDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/FairValueFairValuePolicies" xlink:href="unh-20141231.xsd#FairValueFairValuePolicies" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/FairValueFinancialAssetsAndLiabilitiesExcludingAarpMeasuredAtFairValueOnRecurringBasisDetails" xlink:href="unh-20141231.xsd#FairValueFinancialAssetsAndLiabilitiesExcludingAarpMeasuredAtFairValueOnRecurringBasisDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/FairValueFinancialAssetsAndLiabilitiesExcludingAarpNotMeasuredAtFairValueOnRecurringBasisDetails" xlink:href="unh-20141231.xsd#FairValueFinancialAssetsAndLiabilitiesExcludingAarpNotMeasuredAtFairValueOnRecurringBasisDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/FairValueNarrativeDetails" xlink:href="unh-20141231.xsd#FairValueNarrativeDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/FairValueNotes" xlink:href="unh-20141231.xsd#FairValueNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/FairValueReconciliationOfAssetsMeasuredAtFairValueOnRecurringBasisUsingLevel3InputsDetails" xlink:href="unh-20141231.xsd#FairValueReconciliationOfAssetsMeasuredAtFairValueOnRecurringBasisUsingLevel3InputsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/FairValueTables" xlink:href="unh-20141231.xsd#FairValueTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/GoodwillAndIntangibleAssetsAmortizationExpenseRelatingToIntangibleAssetsDetails" xlink:href="unh-20141231.xsd#GoodwillAndIntangibleAssetsAmortizationExpenseRelatingToIntangibleAssetsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/GoodwillAndIntangibleAssetsChangesInCarryingAmountOfGoodwillByReportingSegmentDetails" xlink:href="unh-20141231.xsd#GoodwillAndIntangibleAssetsChangesInCarryingAmountOfGoodwillByReportingSegmentDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/GoodwillAndIntangibleAssetsDetails" xlink:href="unh-20141231.xsd#GoodwillAndIntangibleAssetsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/GoodwillAndIntangibleAssetsGrossCarryingValueAccumulatedAmortizationAndNetCarryingValueOfIntangibleAssetsDetails" xlink:href="unh-20141231.xsd#GoodwillAndIntangibleAssetsGrossCarryingValueAccumulatedAmortizationAndNetCarryingValueOfIntangibleAssetsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/GoodwillAndIntangibleAssetsNotes" xlink:href="unh-20141231.xsd#GoodwillAndIntangibleAssetsNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/GoodwillAndIntangibleAssetsTables" xlink:href="unh-20141231.xsd#GoodwillAndIntangibleAssetsTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/GoodwillAndIntangibleAssetsWeightedAverageUsefulLivesAssignedToFiniteLivedIntangibleAssetsAcquiredInBusinessCombinationsDetails" xlink:href="unh-20141231.xsd#GoodwillAndIntangibleAssetsWeightedAverageUsefulLivesAssignedToFiniteLivedIntangibleAssetsAcquiredInBusinessCombinationsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/IncomeTaxReconciliationOfTaxProvisionAtUSFederalStatutoryRateDetails" xlink:href="unh-20141231.xsd#IncomeTaxReconciliationOfTaxProvisionAtUSFederalStatutoryRateDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/IncomeTaxesComponentsOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:href="unh-20141231.xsd#IncomeTaxesComponentsOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/IncomeTaxesDetails" xlink:href="unh-20141231.xsd#IncomeTaxesDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/IncomeTaxesNotes" xlink:href="unh-20141231.xsd#IncomeTaxesNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/IncomeTaxesReconciliationOfBeginningAndEndingAmountOfUnrecognizedTaxBenefitsDetails" xlink:href="unh-20141231.xsd#IncomeTaxesReconciliationOfBeginningAndEndingAmountOfUnrecognizedTaxBenefitsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/IncomeTaxesReconciliationOfProvisionForIncomeTaxesDetails" xlink:href="unh-20141231.xsd#IncomeTaxesReconciliationOfProvisionForIncomeTaxesDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/IncomeTaxesTables" xlink:href="unh-20141231.xsd#IncomeTaxesTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/InvestmentsAmortizedCostAndFairValueOfAvailableForSaleDebtSecuritiesByContractualMaturityDetails" xlink:href="unh-20141231.xsd#InvestmentsAmortizedCostAndFairValueOfAvailableForSaleDebtSecuritiesByContractualMaturityDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/InvestmentsAmortizedCostAndFairValueOfHeldToMaturityDebtSecuritiesByContractualMaturityDetails" xlink:href="unh-20141231.xsd#InvestmentsAmortizedCostAndFairValueOfHeldToMaturityDebtSecuritiesByContractualMaturityDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/InvestmentsFairValueOfAvailableForSaleInvestmentsWithGrossUnrealizedLossesByInvestmentTypeAndLengthOfTimeThatIndividualSecuritiesHaveBeenInContinuousUnrealizedLossPositionDetails" xlink:href="unh-20141231.xsd#InvestmentsFairValueOfAvailableForSaleInvestmentsWithGrossUnrealizedLossesByInvestmentTypeAndLengthOfTimeThatIndividualSecuritiesHaveBeenInContinuousUnrealizedLossPositionDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/InvestmentsFairValueOfMortgageBackedSecuritiesByCreditRatingOriginationDetails" xlink:href="unh-20141231.xsd#InvestmentsFairValueOfMortgageBackedSecuritiesByCreditRatingOriginationDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/InvestmentsNarrativeDetails" xlink:href="unh-20141231.xsd#InvestmentsNarrativeDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/InvestmentsNetRealizedGainsDetails" xlink:href="unh-20141231.xsd#InvestmentsNetRealizedGainsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/InvestmentsNotes" xlink:href="unh-20141231.xsd#InvestmentsNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/InvestmentsShortTermAndLongTermInvestmentsDetails" xlink:href="unh-20141231.xsd#InvestmentsShortTermAndLongTermInvestmentsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/InvestmentsTables" xlink:href="unh-20141231.xsd#InvestmentsTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/MedicalCostReserveDevelopmentAndMedicalCostsPayableDetails" xlink:href="unh-20141231.xsd#MedicalCostReserveDevelopmentAndMedicalCostsPayableDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/MedicalCostReserveDevelopmentAndMedicalCostsPayableNotes" xlink:href="unh-20141231.xsd#MedicalCostReserveDevelopmentAndMedicalCostsPayableNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/MedicalCostReserveDevelopmentAndMedicalCostsPayableTables" xlink:href="unh-20141231.xsd#MedicalCostReserveDevelopmentAndMedicalCostsPayableTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayableRollforwardDetails" xlink:href="unh-20141231.xsd#MedicalCostsAndMedicalCostsPayableRollforwardDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwareDetails" xlink:href="unh-20141231.xsd#PropertyPlantAndCapitalizedSoftwareDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwareNotes" xlink:href="unh-20141231.xsd#PropertyPlantAndCapitalizedSoftwareNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwarePropertyPlantAndEquipmentTableDetails" xlink:href="unh-20141231.xsd#PropertyPlantAndCapitalizedSoftwarePropertyPlantAndEquipmentTableDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwareTables" xlink:href="unh-20141231.xsd#PropertyPlantAndCapitalizedSoftwareTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedDetails" xlink:href="unh-20141231.xsd#QuarterlyFinancialDataUnauditedDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedNotes" xlink:href="unh-20141231.xsd#QuarterlyFinancialDataUnauditedNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedTables" xlink:href="unh-20141231.xsd#QuarterlyFinancialDataUnauditedTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ScheduleIBalanceSheetDocumentDetails" xlink:href="unh-20141231.xsd#ScheduleIBalanceSheetDocumentDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ScheduleICondensedBalanceSheetsDetails" xlink:href="unh-20141231.xsd#ScheduleICondensedBalanceSheetsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ScheduleICondensedStatementOfComprehensiveIncomeDetails" xlink:href="unh-20141231.xsd#ScheduleICondensedStatementOfComprehensiveIncomeDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ScheduleIDetails" xlink:href="unh-20141231.xsd#ScheduleIDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ScheduleIMaturitiesOfCommercialPaperAndLongTermDebtDetails" xlink:href="unh-20141231.xsd#ScheduleIMaturitiesOfCommercialPaperAndLongTermDebtDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ScheduleINotes" xlink:href="unh-20141231.xsd#ScheduleINotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ScheduleIStatementOfCashFlowsDetails" xlink:href="unh-20141231.xsd#ScheduleIStatementOfCashFlowsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ScheduleITables" xlink:href="unh-20141231.xsd#ScheduleITables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/SegmentFinancialInformationDetails" xlink:href="unh-20141231.xsd#SegmentFinancialInformationDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/SegmentFinancialInformationNarrativeDetails" xlink:href="unh-20141231.xsd#SegmentFinancialInformationNarrativeDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/SegmentFinancialInformationNotes" xlink:href="unh-20141231.xsd#SegmentFinancialInformationNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/SegmentFinancialInformationTables" xlink:href="unh-20141231.xsd#SegmentFinancialInformationTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareBasedCompensationNarrativeDetails" xlink:href="unh-20141231.xsd#ShareBasedCompensationNarrativeDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareBasedCompensationNotes" xlink:href="unh-20141231.xsd#ShareBasedCompensationNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareBasedCompensationOtherShareBasedCompensationDataDetails" xlink:href="unh-20141231.xsd#ShareBasedCompensationOtherShareBasedCompensationDataDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareBasedCompensationRestrictedShareActivityDetails" xlink:href="unh-20141231.xsd#ShareBasedCompensationRestrictedShareActivityDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareBasedCompensationShareBasedCompensationPrincipalFairValueAssumptionsDetails" xlink:href="unh-20141231.xsd#ShareBasedCompensationShareBasedCompensationPrincipalFairValueAssumptionsDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareBasedCompensationStockOptionAndSarActivityDetails" xlink:href="unh-20141231.xsd#ShareBasedCompensationStockOptionAndSarActivityDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareBasedCompensationTables" xlink:href="unh-20141231.xsd#ShareBasedCompensationTables" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareholdersEquityDetails" xlink:href="unh-20141231.xsd#ShareholdersEquityDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareholdersEquityDividendsPaidDetails" xlink:href="unh-20141231.xsd#ShareholdersEquityDividendsPaidDetails" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareholdersEquityNotes" xlink:href="unh-20141231.xsd#ShareholdersEquityNotes" xlink:type="simple"/>
<roleRef roleURI="http://www.uhc.com/role/ShareholdersEquityTables" xlink:href="unh-20141231.xsd#ShareholdersEquityTables" xlink:type="simple"/>
<calculationLink xlink:role="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesMedicarePartDDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesPolicies" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesRedeemableNoncontrollingInterestsDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/BasisOfPresentationUsesOfEstimatesAndSignificantAccountingPoliciesUsefulLivesForPropertyEquipmentAndCapitalizedSoftwareDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/CommercialPaperAndLongTermDebtDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/CommercialPaperAndLongTermDebtFairValueHedgesEffectOfChangesInFairValueHedgesOnIncomeDetails" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_b13edd1a-818b-a9f3-77e7-819c9fbe4073" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DerivativeGainOnDerivative" xlink:label="loc_us-gaap_DerivativeGainOnDerivative_708d6fbe-d9ca-41d0-4a2d-19f2c08af2cd" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeGainLossOnDerivativeNet_b13edd1a-818b-a9f3-77e7-819c9fbe4073" xlink:to="loc_us-gaap_DerivativeGainOnDerivative_708d6fbe-d9ca-41d0-4a2d-19f2c08af2cd" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DerivativeLossOnDerivative" xlink:label="loc_us-gaap_DerivativeLossOnDerivative_9534a233-9fb5-5e63-c312-0c80608d09e8" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeGainLossOnDerivativeNet_b13edd1a-818b-a9f3-77e7-819c9fbe4073" xlink:to="loc_us-gaap_DerivativeLossOnDerivative_9534a233-9fb5-5e63-c312-0c80608d09e8" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/CommercialPaperAndLongTermDebtFairValueHedgesStatementOfFinancialPositionLocationDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/CommercialPaperAndLongTermDebtMaturitiesOfCommercialPaperAndLongTermDebtDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/CommercialPaperAndLongTermDebtNarrativeDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/CommercialPaperAndLongTermDebtNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/CommercialPaperAndLongTermDebtTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/CommitmentsAndContingenciesCommitmentsAndContingenciesTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/CommitmentsAndContingenciesDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/CommitmentsAndContingenciesFutureLeasePaymentsDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/CommitmentsAndContingenciesNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ConsolidatedBalanceSheetParenthetical" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_16ce0436-3b82-55c5-d896-5cba4c9023bd" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_Liabilities_16ce0436-3b82-55c5-d896-5cba4c9023bd" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_16ce0436-3b82-55c5-d896-5cba4c9023bd" xlink:to="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense" xlink:label="loc_us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense_7917591c-8e8b-6b34-aa31-86140e6993fc" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense_7917591c-8e8b-6b34-aa31-86140e6993fc" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_771fda46-ad18-43f7-74a8-24b4258a1976" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_771fda46-ad18-43f7-74a8-24b4258a1976" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherPolicyholderFunds" xlink:label="loc_us-gaap_OtherPolicyholderFunds_b1bc2bd6-d933-48bb-8c5f-7b75db987d94" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_OtherPolicyholderFunds_b1bc2bd6-d933-48bb-8c5f-7b75db987d94" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_0601d697-1537-c3cb-caaf-11141ac92b39" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_LongTermDebtCurrent_0601d697-1537-c3cb-caaf-11141ac92b39" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="loc_us-gaap_DeferredRevenueCurrent_c952180c-d37a-a6b0-3e18-a18cd8328eee" xlink:type="locator"/>
<calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1477e02d-b6d8-3df6-e715-8364fedce6d9" xlink:to="loc_us-gaap_DeferredRevenueCurrent_c952180c-d37a-a6b0-3e18-a18cd8328eee" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_89b83a57-ffbc-fc48-170d-f8b25d163e54" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_16ce0436-3b82-55c5-d896-5cba4c9023bd" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_89b83a57-ffbc-fc48-170d-f8b25d163e54" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilityForFuturePolicyBenefits" xlink:label="loc_us-gaap_LiabilityForFuturePolicyBenefits_2d3af242-07cc-d9e2-bb5c-3fc550d4dfd7" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_16ce0436-3b82-55c5-d896-5cba4c9023bd" xlink:to="loc_us-gaap_LiabilityForFuturePolicyBenefits_2d3af242-07cc-d9e2-bb5c-3fc550d4dfd7" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_43aaac76-959d-69e2-234b-7c7a89d77345" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_16ce0436-3b82-55c5-d896-5cba4c9023bd" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_43aaac76-959d-69e2-234b-7c7a89d77345" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_f7fce5cd-2d53-a8b3-a485-6d0f3635b8fe" xlink:type="locator"/>
<calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_16ce0436-3b82-55c5-d896-5cba4c9023bd" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_f7fce5cd-2d53-a8b3-a485-6d0f3635b8fe" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_459333c1-86e9-9176-c556-fa5a1aa33278" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_459333c1-86e9-9176-c556-fa5a1aa33278" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_ae9fd5e7-8741-dfbd-241e-1460ec6c786e" xlink:to="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaap_PreferredStockValue_9fd7dfd7-596e-4c7f-4077-abbf8130d157" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:to="loc_us-gaap_PreferredStockValue_9fd7dfd7-596e-4c7f-4077-abbf8130d157" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_ffd09989-75a8-4713-beb0-21bebb3561d6" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:to="loc_us-gaap_CommonStockValue_ffd09989-75a8-4713-beb0-21bebb3561d6" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_440a13e9-e4dc-f397-4d0d-27daacd44483" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_440a13e9-e4dc-f397-4d0d-27daacd44483" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_4d60b95b-a2a9-55da-7eaa-2ca718a58484" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_26e56c7a-24ab-e869-809a-0509ccbe86d9" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_4d60b95b-a2a9-55da-7eaa-2ca718a58484" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:to="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_999960f8-6702-f7e9-88df-fcb8021751b2" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_999960f8-6702-f7e9-88df-fcb8021751b2" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShortTermInvestments" xlink:label="loc_us-gaap_ShortTermInvestments_96e417a6-7446-6031-787d-9a81025423eb" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_ShortTermInvestments_96e417a6-7446-6031-787d-9a81025423eb" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_dc301a2a-78b3-2f7c-72b2-6d5ec18f9327" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_dc301a2a-78b3-2f7c-72b2-6d5ec18f9327" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherReceivablesNetCurrent" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_5d906aad-8bc2-6ca7-c26d-173714efb564" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_5d906aad-8bc2-6ca7-c26d-173714efb564" xlink:type="arc"/>
<loc xlink:href="unh-20141231.xsd#unh_AarpAssetsUnderManagement" xlink:label="loc_unh_AarpAssetsUnderManagement_c2b1af26-9f4a-8d14-8b41-b9cf340f79df" xlink:type="locator"/>
<calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_unh_AarpAssetsUnderManagement_c2b1af26-9f4a-8d14-8b41-b9cf340f79df" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent_52a3b96d-dcff-2155-e22c-ce518e201760" xlink:type="locator"/>
<calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent_52a3b96d-dcff-2155-e22c-ce518e201760" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_3227d5e9-cb9d-fda7-e599-c6fb89b5e07a" xlink:type="locator"/>
<calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_67f49e84-05fd-4b0b-ae5a-e9913b97cea2" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_3227d5e9-cb9d-fda7-e599-c6fb89b5e07a" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongTermInvestments" xlink:label="loc_us-gaap_LongTermInvestments_c62110c4-28c7-e8eb-2a6d-e8964607a348" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:to="loc_us-gaap_LongTermInvestments_c62110c4-28c7-e8eb-2a6d-e8964607a348" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_a1eaafaf-055b-e423-85ef-4424fb2ef4e4" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_a1eaafaf-055b-e423-85ef-4424fb2ef4e4" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_d1288432-0516-3188-e96b-2bc623375a5a" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:to="loc_us-gaap_Goodwill_d1288432-0516-3188-e96b-2bc623375a5a" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_32ecd7de-6410-d56f-5547-ab1b682ebbc0" xlink:type="locator"/>
<calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_32ecd7de-6410-d56f-5547-ab1b682ebbc0" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_4599c23a-11f0-4277-ea32-9886d26f8792" xlink:type="locator"/>
<calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b517a4f1-4597-b094-2608-75af660328e1" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_4599c23a-11f0-4277-ea32-9886d26f8792" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_46b895b2-8ff5-9e37-d4c3-5b75649cbcba" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_46b895b2-8ff5-9e37-d4c3-5b75649cbcba" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_25c27778-3634-0405-2ad7-97f542e360cf" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_ProfitLoss_25c27778-3634-0405-2ad7-97f542e360cf" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_7572aa3e-fb67-19c4-4e10-d8c3ceded4e5" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_DepreciationAndAmortization_7572aa3e-fb67-19c4-4e10-d8c3ceded4e5" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_b14e4ab6-e003-13d4-eacd-26899afc8b93" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_b14e4ab6-e003-13d4-eacd-26899afc8b93" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_aa7a0bc5-86c6-13a8-3676-9960bad8007f" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_ShareBasedCompensation_aa7a0bc5-86c6-13a8-3676-9960bad8007f" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_98d55fce-5941-51e9-8b41-6d9bb1d46d8b" xlink:type="locator"/>
<calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_98d55fce-5941-51e9-8b41-6d9bb1d46d8b" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_fc73bf45-b7cf-c894-bf3a-f56c9d39cbe4" xlink:type="locator"/>
<calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_fc73bf45-b7cf-c894-bf3a-f56c9d39cbe4" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_dd041a01-1df8-a5e2-f301-eb34433bea02" xlink:type="locator"/>
<calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_dd041a01-1df8-a5e2-f301-eb34433bea02" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInHealthCareInsuranceLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInHealthCareInsuranceLiabilities_3eadfad1-684a-7b3e-683a-34305e473107" xlink:type="locator"/>
<calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInHealthCareInsuranceLiabilities_3eadfad1-684a-7b3e-683a-34305e473107" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_af8dcf28-5bbb-ce71-1ed2-41689425cc96" xlink:type="locator"/>
<calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_af8dcf28-5bbb-ce71-1ed2-41689425cc96" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInOtherPolicyholderFunds" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherPolicyholderFunds_f01990e1-9e00-62c2-2bfc-1de0e41c3477" xlink:type="locator"/>
<calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherPolicyholderFunds_f01990e1-9e00-62c2-2bfc-1de0e41c3477" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_54734d8c-7af1-eb6f-7e56-5940fde2abb1" xlink:type="locator"/>
<calculationArc order="11" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b6b5c2f7-2ab7-a264-6d06-119dda52768c" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_54734d8c-7af1-eb6f-7e56-5940fde2abb1" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_46b895b2-8ff5-9e37-d4c3-5b75649cbcba" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsToAcquireInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments_45a45f69-277f-2291-6c62-42864f544476" xlink:type="locator"/>
<calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments_45a45f69-277f-2291-6c62-42864f544476" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities_a0029051-5e45-07b3-aa2a-67a017f85138" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities_a0029051-5e45-07b3-aa2a-67a017f85138" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_2ecf46d4-9a58-1f42-0b49-2cab0508421b" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_2ecf46d4-9a58-1f42-0b49-2cab0508421b" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_d07148ef-7d32-9c78-2111-e77f98145cb0" xlink:type="locator"/>
<calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_d07148ef-7d32-9c78-2111-e77f98145cb0" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_37181af6-e562-cefc-f2b6-8490ea2c3e04" xlink:type="locator"/>
<calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_37181af6-e562-cefc-f2b6-8490ea2c3e04" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_90abc8df-a70a-7c23-5fff-9b3d9bc98c9b" xlink:type="locator"/>
<calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_90abc8df-a70a-7c23-5fff-9b3d9bc98c9b" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_b8d3719c-373d-7569-4a73-17b00d7e541c" xlink:type="locator"/>
<calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fb013d5f-7e0c-1a40-5a42-42bd8c3a1d51" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_b8d3719c-373d-7569-4a73-17b00d7e541c" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_46b895b2-8ff5-9e37-d4c3-5b75649cbcba" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest_25192452-d331-fff9-09d4-524e2d3ca795" xlink:type="locator"/>
<calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest_25192452-d331-fff9-09d4-524e2d3ca795" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_b5a6c95e-5e73-5e4d-9c67-665fb27c338e" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_b5a6c95e-5e73-5e4d-9c67-665fb27c338e" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_ea6cf810-713a-97e3-79af-899fea44b5f3" xlink:type="locator"/>
<calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_ea6cf810-713a-97e3-79af-899fea44b5f3" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_bdec3780-88f3-c634-f85d-cb36bba63bd2" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_bdec3780-88f3-c634-f85d-cb36bba63bd2" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_555855ee-67fc-e384-4c0f-c30d34ed47e5" xlink:type="locator"/>
<calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_555855ee-67fc-e384-4c0f-c30d34ed47e5" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfCommercialPaper" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_4fbca875-70cc-52e6-024f-263e8bf9b6ad" xlink:type="locator"/>
<calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_4fbca875-70cc-52e6-024f-263e8bf9b6ad" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_77fb0894-8e98-8acd-7d89-0f52e26449e8" xlink:type="locator"/>
<calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_77fb0894-8e98-8acd-7d89-0f52e26449e8" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInCustomerDeposits" xlink:label="loc_us-gaap_IncreaseDecreaseInCustomerDeposits_4e499866-5268-9681-e009-e57111cb1743" xlink:type="locator"/>
<calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_IncreaseDecreaseInCustomerDeposits_4e499866-5268-9681-e009-e57111cb1743" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_b84bc21b-66ef-bfa0-eb10-9e22319e83fe" xlink:type="locator"/>
<calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6d7b73b6-0db7-23f7-377e-417fa8fc8e27" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_b84bc21b-66ef-bfa0-eb10-9e22319e83fe" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_21149c4c-60e9-1f3a-82d3-665a83a5c4f2" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_46b895b2-8ff5-9e37-d4c3-5b75649cbcba" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_21149c4c-60e9-1f3a-82d3-665a83a5c4f2" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/ConsolidatedStatementsOfChangesInShareholdersEquity" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_375e0d17-4818-4239-a370-aada0b6ca8eb" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_e60ce6f6-99c9-966b-fd6a-aa6bbb9e1d29" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_375e0d17-4818-4239-a370-aada0b6ca8eb" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_e60ce6f6-99c9-966b-fd6a-aa6bbb9e1d29" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_25c27778-3634-0405-2ad7-97f542e360cf" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_e60ce6f6-99c9-966b-fd6a-aa6bbb9e1d29" xlink:to="loc_us-gaap_ProfitLoss_25c27778-3634-0405-2ad7-97f542e360cf" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_bb574b94-eefb-7c73-5059-cf76b1a5ebac" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_e60ce6f6-99c9-966b-fd6a-aa6bbb9e1d29" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_bb574b94-eefb-7c73-5059-cf76b1a5ebac" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_fde67200-397d-5099-350c-41ea32900a0f" xlink:type="locator"/>
<calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_bb574b94-eefb-7c73-5059-cf76b1a5ebac" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_fde67200-397d-5099-350c-41ea32900a0f" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_9651c00a-6ef3-3960-1164-38c9bbf3dfef" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_fde67200-397d-5099-350c-41ea32900a0f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_9651c00a-6ef3-3960-1164-38c9bbf3dfef" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax_c803ba89-8a12-b2cd-c580-52ec4388c95b" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_fde67200-397d-5099-350c-41ea32900a0f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax_c803ba89-8a12-b2cd-c580-52ec4388c95b" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_39dfb1b8-4104-dba1-f1b7-0fcc7ae9bf2a" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_bb574b94-eefb-7c73-5059-cf76b1a5ebac" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_39dfb1b8-4104-dba1-f1b7-0fcc7ae9bf2a" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_7111fa14-4368-7a38-1bfe-983a0834d641" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_bb574b94-eefb-7c73-5059-cf76b1a5ebac" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_7111fa14-4368-7a38-1bfe-983a0834d641" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_39d89d65-3816-8c95-9a6a-a99ef111c708" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_7111fa14-4368-7a38-1bfe-983a0834d641" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_39d89d65-3816-8c95-9a6a-a99ef111c708" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_c78b44f2-b405-d38b-35d5-3ab84844e4a7" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_7111fa14-4368-7a38-1bfe-983a0834d641" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_c78b44f2-b405-d38b-35d5-3ab84844e4a7" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_cbba277b-de6d-ba1c-e7dd-3f818dbec387" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_375e0d17-4818-4239-a370-aada0b6ca8eb" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_cbba277b-de6d-ba1c-e7dd-3f818dbec387" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/ConsolidatedStatementsOfOperations" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_faecc408-4bea-6e13-83bd-71b4c2ddf64c" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_25c27778-3634-0405-2ad7-97f542e360cf" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_faecc408-4bea-6e13-83bd-71b4c2ddf64c" xlink:to="loc_us-gaap_ProfitLoss_25c27778-3634-0405-2ad7-97f542e360cf" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_10afc0e9-1faa-0be3-fc32-15d128e46f3f" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_25c27778-3634-0405-2ad7-97f542e360cf" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_10afc0e9-1faa-0be3-fc32-15d128e46f3f" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_72b2c986-6e1a-bdde-cc72-888b0df562b9" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_10afc0e9-1faa-0be3-fc32-15d128e46f3f" xlink:to="loc_us-gaap_OperatingIncomeLoss_72b2c986-6e1a-bdde-cc72-888b0df562b9" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_467b5ef7-2b02-661a-3e41-f79140739819" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_72b2c986-6e1a-bdde-cc72-888b0df562b9" xlink:to="loc_us-gaap_Revenues_467b5ef7-2b02-661a-3e41-f79140739819" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PremiumsEarnedNet" xlink:label="loc_us-gaap_PremiumsEarnedNet_cb7d0cc8-8dc7-ff0e-f186-d6a6418c93c0" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_467b5ef7-2b02-661a-3e41-f79140739819" xlink:to="loc_us-gaap_PremiumsEarnedNet_cb7d0cc8-8dc7-ff0e-f186-d6a6418c93c0" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SalesRevenueServicesNet" xlink:label="loc_us-gaap_SalesRevenueServicesNet_8bcef5d0-be55-1817-9796-00fa51e44801" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_467b5ef7-2b02-661a-3e41-f79140739819" xlink:to="loc_us-gaap_SalesRevenueServicesNet_8bcef5d0-be55-1817-9796-00fa51e44801" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SalesRevenueGoodsNet" xlink:label="loc_us-gaap_SalesRevenueGoodsNet_407dba67-ed61-44c5-d72f-b6457c9a2967" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_467b5ef7-2b02-661a-3e41-f79140739819" xlink:to="loc_us-gaap_SalesRevenueGoodsNet_407dba67-ed61-44c5-d72f-b6457c9a2967" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InvestmentIncomeInterestAndDividend" xlink:label="loc_us-gaap_InvestmentIncomeInterestAndDividend_00233b3c-2c82-d677-6e44-556e1a8aa7a9" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_467b5ef7-2b02-661a-3e41-f79140739819" xlink:to="loc_us-gaap_InvestmentIncomeInterestAndDividend_00233b3c-2c82-d677-6e44-556e1a8aa7a9" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_3dfc25ec-24ab-071c-977e-0167133c8f73" xlink:type="locator"/>
<calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_467b5ef7-2b02-661a-3e41-f79140739819" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_3dfc25ec-24ab-071c-977e-0167133c8f73" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="loc_us-gaap_CostsAndExpenses_f5487d97-18cc-be7a-d1d1-ec68e0b0a9f3" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_72b2c986-6e1a-bdde-cc72-888b0df562b9" xlink:to="loc_us-gaap_CostsAndExpenses_f5487d97-18cc-be7a-d1d1-ec68e0b0a9f3" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PolicyholderBenefitsAndClaimsIncurredHealthCare" xlink:label="loc_us-gaap_PolicyholderBenefitsAndClaimsIncurredHealthCare_2c8e0e0f-63f5-2d43-7ad0-27329a126959" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_f5487d97-18cc-be7a-d1d1-ec68e0b0a9f3" xlink:to="loc_us-gaap_PolicyholderBenefitsAndClaimsIncurredHealthCare_2c8e0e0f-63f5-2d43-7ad0-27329a126959" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_581512af-7ae6-1b38-5ef5-f123bd81ccb9" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_f5487d97-18cc-be7a-d1d1-ec68e0b0a9f3" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_581512af-7ae6-1b38-5ef5-f123bd81ccb9" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="loc_us-gaap_CostOfGoodsSold_f60bb493-e4bb-89cc-3640-4febfc5d9f27" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_f5487d97-18cc-be7a-d1d1-ec68e0b0a9f3" xlink:to="loc_us-gaap_CostOfGoodsSold_f60bb493-e4bb-89cc-3640-4febfc5d9f27" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_7572aa3e-fb67-19c4-4e10-d8c3ceded4e5" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_f5487d97-18cc-be7a-d1d1-ec68e0b0a9f3" xlink:to="loc_us-gaap_DepreciationAndAmortization_7572aa3e-fb67-19c4-4e10-d8c3ceded4e5" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_cefe1779-647b-11ee-28a9-2740d86c056b" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_10afc0e9-1faa-0be3-fc32-15d128e46f3f" xlink:to="loc_us-gaap_InterestExpense_cefe1779-647b-11ee-28a9-2740d86c056b" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_25c27778-3634-0405-2ad7-97f542e360cf" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_432e9926-335c-2ed5-af4e-1b628e023987" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_faecc408-4bea-6e13-83bd-71b4c2ddf64c" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_432e9926-335c-2ed5-af4e-1b628e023987" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_72491ff2-4ebf-cd12-4650-465a32156ef1" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_0f40104d-c144-6dd5-056b-98f95661c23e" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_72491ff2-4ebf-cd12-4650-465a32156ef1" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_0f40104d-c144-6dd5-056b-98f95661c23e" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_dddad97c-8f42-a8ee-eba7-7c0400dcdc14" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_72491ff2-4ebf-cd12-4650-465a32156ef1" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_dddad97c-8f42-a8ee-eba7-7c0400dcdc14" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/DescriptionOfBusinessNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/DocumentAndEntityInformationDocument" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/FairValueAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/FairValueFairValueInputsAssetsQuantitativeInformationDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/FairValueFairValuePolicies" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/FairValueFinancialAssetsAndLiabilitiesExcludingAarpMeasuredAtFairValueOnRecurringBasisDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/FairValueFinancialAssetsAndLiabilitiesExcludingAarpNotMeasuredAtFairValueOnRecurringBasisDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/FairValueNarrativeDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/FairValueNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/FairValueReconciliationOfAssetsMeasuredAtFairValueOnRecurringBasisUsingLevel3InputsDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/FairValueTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/GoodwillAndIntangibleAssetsAmortizationExpenseRelatingToIntangibleAssetsDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/GoodwillAndIntangibleAssetsChangesInCarryingAmountOfGoodwillByReportingSegmentDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/GoodwillAndIntangibleAssetsDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/GoodwillAndIntangibleAssetsGrossCarryingValueAccumulatedAmortizationAndNetCarryingValueOfIntangibleAssetsDetails" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_32ecd7de-6410-d56f-5547-ab1b682ebbc0" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_c9b58bd5-1561-fc73-755f-787c4c8b0c6e" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_32ecd7de-6410-d56f-5547-ab1b682ebbc0" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_c9b58bd5-1561-fc73-755f-787c4c8b0c6e" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_283368b3-486d-3829-d3e1-812e3b2045be" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_32ecd7de-6410-d56f-5547-ab1b682ebbc0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_283368b3-486d-3829-d3e1-812e3b2045be" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/GoodwillAndIntangibleAssetsNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/GoodwillAndIntangibleAssetsTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/GoodwillAndIntangibleAssetsWeightedAverageUsefulLivesAssignedToFiniteLivedIntangibleAssetsAcquiredInBusinessCombinationsDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/IncomeTaxReconciliationOfTaxProvisionAtUSFederalStatutoryRateDetails" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_6ddabc60-b949-830f-ceec-3c3166ee4678" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:to="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_6ddabc60-b949-830f-ceec-3c3166ee4678" xlink:type="arc"/>
<loc xlink:href="unh-20141231.xsd#unh_NonrefundableIndustryTaxExpense" xlink:label="loc_unh_NonrefundableIndustryTaxExpense_9b993011-8f7e-11e4-a13c-22000a9f3af2" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:to="loc_unh_NonrefundableIndustryTaxExpense_9b993011-8f7e-11e4-a13c-22000a9f3af2" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_0556a7cc-961f-2ff0-910e-be7cf7428833" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:to="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_0556a7cc-961f-2ff0-910e-be7cf7428833" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxExemptIncome" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxExemptIncome_117813bf-7ef5-feb4-cc7f-c930dbc0abb6" xlink:type="locator"/>
<calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxExemptIncome_117813bf-7ef5-feb4-cc7f-c930dbc0abb6" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpense" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpense_8da87b81-a2f5-5483-6abf-fdda40768e13" xlink:type="locator"/>
<calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpense_8da87b81-a2f5-5483-6abf-fdda40768e13" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments" xlink:label="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_97197894-8a5f-31b0-a37d-05c54140608d" xlink:type="locator"/>
<calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:to="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_97197894-8a5f-31b0-a37d-05c54140608d" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/IncomeTaxesComponentsOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="loc_us-gaap_DeferredTaxLiabilities_c43448c4-6b4c-56ea-f479-78cea348bda4" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_406aac40-50cd-6dac-9616-1ad8d5e1be85" xlink:type="locator"/>
<calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxLiabilities_c43448c4-6b4c-56ea-f479-78cea348bda4" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_406aac40-50cd-6dac-9616-1ad8d5e1be85" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_406aac40-50cd-6dac-9616-1ad8d5e1be85" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReturnsAndAllowances" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReturnsAndAllowances_c9876ad1-f011-b3a3-448d-82405d605c27" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReturnsAndAllowances_c9876ad1-f011-b3a3-448d-82405d605c27" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic_9dbc077b-be04-8b6b-9214-fb6bd222161b" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic_9dbc077b-be04-8b6b-9214-fb6bd222161b" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_772f9e14-fdcf-0b3c-d185-e9c8ad74796e" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_772f9e14-fdcf-0b3c-d185-e9c8ad74796e" xlink:type="arc"/>
<loc xlink:href="unh-20141231.xsd#unh_DeferredTaxAssetsDeferredTaxExpenseLongtermliabilities" xlink:label="loc_unh_DeferredTaxAssetsDeferredTaxExpenseLongtermliabilities_bde3f4ef-8f82-11e4-a13c-22000a9f3af2" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:to="loc_unh_DeferredTaxAssetsDeferredTaxExpenseLongtermliabilities_bde3f4ef-8f82-11e4-a13c-22000a9f3af2" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals_cc073c9b-df99-b1d4-6ac8-8ec231594e51" xlink:type="locator"/>
<calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals_cc073c9b-df99-b1d4-6ac8-8ec231594e51" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign_57e6ba5f-d954-ff87-60a8-99bef2c4ee17" xlink:type="locator"/>
<calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign_57e6ba5f-d954-ff87-60a8-99bef2c4ee17" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxAssetsDeferredIncome" xlink:label="loc_us-gaap_DeferredTaxAssetsDeferredIncome_9f110c72-2314-b477-9ead-2d2caab54bc9" xlink:type="locator"/>
<calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:to="loc_us-gaap_DeferredTaxAssetsDeferredIncome_9f110c72-2314-b477-9ead-2d2caab54bc9" xlink:type="arc"/>
<loc xlink:href="unh-20141231.xsd#unh_DeferredTaxAssetUnrecognizedTaxBenefits" xlink:label="loc_unh_DeferredTaxAssetUnrecognizedTaxBenefits_40059185-8f83-11e4-a13c-22000a9f3af2" xlink:type="locator"/>
<calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:to="loc_unh_DeferredTaxAssetUnrecognizedTaxBenefits_40059185-8f83-11e4-a13c-22000a9f3af2" xlink:type="arc"/>
<loc xlink:href="unh-20141231.xsd#unh_DeferredTaxAssetOtherDomestic" xlink:label="loc_unh_DeferredTaxAssetOtherDomestic_2e865f95-8f8f-11e4-a13c-22000a9f3af2" xlink:type="locator"/>
<calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:to="loc_unh_DeferredTaxAssetOtherDomestic_2e865f95-8f8f-11e4-a13c-22000a9f3af2" xlink:type="arc"/>
<loc xlink:href="unh-20141231.xsd#unh_DeferredTaxAssetOtherForeign" xlink:label="loc_unh_DeferredTaxAssetOtherForeign_54f54e46-8f8f-11e4-a13c-22000a9f3af2" xlink:type="locator"/>
<calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_c6255722-3158-aa8e-fb0b-718e4b04bb3b" xlink:to="loc_unh_DeferredTaxAssetOtherForeign_54f54e46-8f8f-11e4-a13c-22000a9f3af2" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_9afa727c-dfb8-5804-93fa-f0667d5fb87b" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_406aac40-50cd-6dac-9616-1ad8d5e1be85" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_9afa727c-dfb8-5804-93fa-f0667d5fb87b" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_576d5a77-ba10-3881-36d9-b5e9bdaefd1b" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxLiabilities_c43448c4-6b4c-56ea-f479-78cea348bda4" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_576d5a77-ba10-3881-36d9-b5e9bdaefd1b" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOtherFiniteLivedAssets" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOtherFiniteLivedAssets_c057c86a-0b75-6a67-c995-6e3afbec9c06" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_576d5a77-ba10-3881-36d9-b5e9bdaefd1b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOtherFiniteLivedAssets_c057c86a-0b75-6a67-c995-6e3afbec9c06" xlink:type="arc"/>
<loc xlink:href="unh-20141231.xsd#unh_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsForeign" xlink:label="loc_unh_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsForeign_bd8aba99-8f8f-11e4-a13c-22000a9f3af2" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_576d5a77-ba10-3881-36d9-b5e9bdaefd1b" xlink:to="loc_unh_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsForeign_bd8aba99-8f8f-11e4-a13c-22000a9f3af2" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware_2347387b-773f-ef60-4ba4-c8eb3b3d2286" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_576d5a77-ba10-3881-36d9-b5e9bdaefd1b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware_2347387b-773f-ef60-4ba4-c8eb3b3d2286" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome_70557bdb-08d7-1887-2569-36eba3e1440c" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_576d5a77-ba10-3881-36d9-b5e9bdaefd1b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome_70557bdb-08d7-1887-2569-36eba3e1440c" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_9606c73c-efc0-b625-54e8-152a5208656a" xlink:type="locator"/>
<calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_576d5a77-ba10-3881-36d9-b5e9bdaefd1b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_9606c73c-efc0-b625-54e8-152a5208656a" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPrepaidExpenses" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPrepaidExpenses_68efb214-0e93-8291-d4c6-0a3d7fb0621a" xlink:type="locator"/>
<calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_576d5a77-ba10-3881-36d9-b5e9bdaefd1b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPrepaidExpenses_68efb214-0e93-8291-d4c6-0a3d7fb0621a" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_03f21f85-f3db-d88a-4ae2-531e9e31ba53" xlink:type="locator"/>
<calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_576d5a77-ba10-3881-36d9-b5e9bdaefd1b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_03f21f85-f3db-d88a-4ae2-531e9e31ba53" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/IncomeTaxesDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/IncomeTaxesNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/IncomeTaxesReconciliationOfBeginningAndEndingAmountOfUnrecognizedTaxBenefitsDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/IncomeTaxesReconciliationOfProvisionForIncomeTaxesDetails" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_7d4743a7-a426-b8b2-fcc2-087bba00f6ec" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_7d4743a7-a426-b8b2-fcc2-087bba00f6ec" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations" xlink:label="loc_us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations_6c0365bc-9883-fcbd-231a-bf3309106207" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_7d4743a7-a426-b8b2-fcc2-087bba00f6ec" xlink:to="loc_us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations_6c0365bc-9883-fcbd-231a-bf3309106207" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_564dd168-0a47-eba4-b7fa-9c9d2cfaa50b" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_7d4743a7-a426-b8b2-fcc2-087bba00f6ec" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_564dd168-0a47-eba4-b7fa-9c9d2cfaa50b" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_b14e4ab6-e003-13d4-eacd-26899afc8b93" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_b14e4ab6-e003-13d4-eacd-26899afc8b93" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/IncomeTaxesTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/InvestmentsAmortizedCostAndFairValueOfAvailableForSaleDebtSecuritiesByContractualMaturityDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/InvestmentsAmortizedCostAndFairValueOfHeldToMaturityDebtSecuritiesByContractualMaturityDetails" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecurities" xlink:label="loc_us-gaap_HeldToMaturitySecurities_bc9026f4-2ac3-a12d-381a-50b0a56627fb" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_45d86008-3fa7-a52d-e094-5a4eb80a67c9" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecurities_bc9026f4-2ac3-a12d-381a-50b0a56627fb" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_45d86008-3fa7-a52d-e094-5a4eb80a67c9" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount_ff323989-a558-7cdd-2bef-2a02a2743798" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecurities_bc9026f4-2ac3-a12d-381a-50b0a56627fb" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount_ff323989-a558-7cdd-2bef-2a02a2743798" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount_c3049439-d338-bf6a-5fd5-a1b0ea3e7bcf" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecurities_bc9026f4-2ac3-a12d-381a-50b0a56627fb" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount_c3049439-d338-bf6a-5fd5-a1b0ea3e7bcf" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount_2fb6535f-f4bc-4fe3-32e6-b0e126df7798" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecurities_bc9026f4-2ac3-a12d-381a-50b0a56627fb" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount_2fb6535f-f4bc-4fe3-32e6-b0e126df7798" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesFairValue_d84744e1-e35d-80e8-74e5-519c7e2e20e3" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_84bb7dfe-06bd-0ec4-9906-f243f488d210" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesFairValue_d84744e1-e35d-80e8-74e5-519c7e2e20e3" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_84bb7dfe-06bd-0ec4-9906-f243f488d210" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_4c6adfde-3094-c46e-65a8-976780364307" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesFairValue_d84744e1-e35d-80e8-74e5-519c7e2e20e3" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_4c6adfde-3094-c46e-65a8-976780364307" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_70022481-b040-d5d9-8a42-46f28c496efa" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesFairValue_d84744e1-e35d-80e8-74e5-519c7e2e20e3" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_70022481-b040-d5d9-8a42-46f28c496efa" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue_a7cdeedd-4cc8-cbce-1f25-f1ad79b63004" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesFairValue_d84744e1-e35d-80e8-74e5-519c7e2e20e3" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue_a7cdeedd-4cc8-cbce-1f25-f1ad79b63004" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/InvestmentsFairValueOfAvailableForSaleInvestmentsWithGrossUnrealizedLossesByInvestmentTypeAndLengthOfTimeThatIndividualSecuritiesHaveBeenInContinuousUnrealizedLossPositionDetails" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_4c4994f7-9a87-7574-293c-f61fdd07752d" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_caf1d2f9-eae0-083b-ed81-0a8169b3c185" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_4c4994f7-9a87-7574-293c-f61fdd07752d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_caf1d2f9-eae0-083b-ed81-0a8169b3c185" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_6cf984cb-7235-cd8b-4d85-7e7548ba15c0" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_4c4994f7-9a87-7574-293c-f61fdd07752d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_6cf984cb-7235-cd8b-4d85-7e7548ba15c0" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_26f59f22-3d87-e210-0509-e24ea1ccab0e" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_d8597dfe-05e4-9a70-c8bc-f7993ab1c960" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_26f59f22-3d87-e210-0509-e24ea1ccab0e" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_d8597dfe-05e4-9a70-c8bc-f7993ab1c960" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_0ed8d509-df67-c587-57dd-6abb6e0da72a" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_26f59f22-3d87-e210-0509-e24ea1ccab0e" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_0ed8d509-df67-c587-57dd-6abb6e0da72a" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/InvestmentsFairValueOfMortgageBackedSecuritiesByCreditRatingOriginationDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/InvestmentsNarrativeDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/InvestmentsNetRealizedGainsDetails" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_GainLossOnInvestments" xlink:label="loc_us-gaap_GainLossOnInvestments_e010f7c6-ee9b-3d3e-6cb0-367bdf76460b" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_0070a4bc-e722-25a9-6590-00dc4709c017" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GainLossOnInvestments_e010f7c6-ee9b-3d3e-6cb0-367bdf76460b" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_0070a4bc-e722-25a9-6590-00dc4709c017" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet" xlink:label="loc_us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet_1a951240-d207-4ec7-31f0-7c37dfc0338c" xlink:type="locator"/>
<calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_0070a4bc-e722-25a9-6590-00dc4709c017" xlink:to="loc_us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet_1a951240-d207-4ec7-31f0-7c37dfc0338c" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount" xlink:label="loc_us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount_bb8e8370-6d14-f02d-7510-1db3f5de27f6" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet_1a951240-d207-4ec7-31f0-7c37dfc0338c" xlink:to="loc_us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount_bb8e8370-6d14-f02d-7510-1db3f5de27f6" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest_1595876e-7132-9631-f433-15044c52fa74" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet_1a951240-d207-4ec7-31f0-7c37dfc0338c" xlink:to="loc_us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest_1595876e-7132-9631-f433-15044c52fa74" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses_d7f19204-4934-5930-971a-e9aa0161adf1" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_0070a4bc-e722-25a9-6590-00dc4709c017" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses_d7f19204-4934-5930-971a-e9aa0161adf1" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGains" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_4c7423b7-be9f-0c19-f205-211ae5992411" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet_0070a4bc-e722-25a9-6590-00dc4709c017" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_4c7423b7-be9f-0c19-f205-211ae5992411" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GainLossOnInvestments_e010f7c6-ee9b-3d3e-6cb0-367bdf76460b" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_3a83e980-c99b-5657-79fd-300643b7fa11" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/InvestmentsNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/InvestmentsShortTermAndLongTermInvestmentsDetails" xlink:type="extended">
<loc xlink:href="unh-20141231.xsd#unh_InvestmentsAmortizedCost" xlink:label="loc_unh_InvestmentsAmortizedCost_badf85cc-d520-bf65-9425-b9cf3305d255" xlink:type="locator"/>
<loc xlink:href="unh-20141231.xsd#unh_InvestmentsGrossUnrealizedGains" xlink:label="loc_unh_InvestmentsGrossUnrealizedGains_08bbe593-ef46-74bf-2290-b9cf34c0c83c" xlink:type="locator"/>
<calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_unh_InvestmentsAmortizedCost_badf85cc-d520-bf65-9425-b9cf3305d255" xlink:to="loc_unh_InvestmentsGrossUnrealizedGains_08bbe593-ef46-74bf-2290-b9cf34c0c83c" xlink:type="arc"/>
<loc xlink:href="unh-20141231.xsd#unh_InvestmentsGrossUnrealizedLosses" xlink:label="loc_unh_InvestmentsGrossUnrealizedLosses_d656aed5-114b-02e4-dc73-b9cf34fab165" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_unh_InvestmentsAmortizedCost_badf85cc-d520-bf65-9425-b9cf3305d255" xlink:to="loc_unh_InvestmentsGrossUnrealizedLosses_d656aed5-114b-02e4-dc73-b9cf34fab165" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InvestmentsFairValueDisclosure" xlink:label="loc_us-gaap_InvestmentsFairValueDisclosure_c834eacb-13fa-94c9-344e-6c3e507eff22" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_unh_InvestmentsAmortizedCost_badf85cc-d520-bf65-9425-b9cf3305d255" xlink:to="loc_us-gaap_InvestmentsFairValueDisclosure_c834eacb-13fa-94c9-344e-6c3e507eff22" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_0bfa0f19-2b77-9a60-e98d-732b2a1d3611" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="loc_us-gaap_AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax_64460640-391b-e732-40ce-8b0a8a8909b0" xlink:type="locator"/>
<calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_0bfa0f19-2b77-9a60-e98d-732b2a1d3611" xlink:to="loc_us-gaap_AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax_64460640-391b-e732-40ce-8b0a8a8909b0" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:label="loc_us-gaap_AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax_1bf84554-9e8e-bc33-31cc-0db961a4ffff" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_0bfa0f19-2b77-9a60-e98d-732b2a1d3611" xlink:to="loc_us-gaap_AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax_1bf84554-9e8e-bc33-31cc-0db961a4ffff" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesEquitySecurities" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesEquitySecurities_58347639-ebe1-7fa3-bdf8-9684b2147efe" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_0bfa0f19-2b77-9a60-e98d-732b2a1d3611" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesEquitySecurities_58347639-ebe1-7fa3-bdf8-9684b2147efe" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_8605eddd-b10c-61e4-bcc5-27025efd29e1" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_3099456e-b2e5-490d-d4dc-afe0d9aed1bc" xlink:type="locator"/>
<calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_8605eddd-b10c-61e4-bcc5-27025efd29e1" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_3099456e-b2e5-490d-d4dc-afe0d9aed1bc" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_97e0ba31-498e-c3ed-d96e-a57528c72918" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_8605eddd-b10c-61e4-bcc5-27025efd29e1" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_97e0ba31-498e-c3ed-d96e-a57528c72918" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_4395035e-046d-9613-2e01-137393947f64" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_8605eddd-b10c-61e4-bcc5-27025efd29e1" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_4395035e-046d-9613-2e01-137393947f64" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecurities" xlink:label="loc_us-gaap_HeldToMaturitySecurities_bc9026f4-2ac3-a12d-381a-50b0a56627fb" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_efefcee0-1cf0-0630-aa43-6a0932a55d70" xlink:type="locator"/>
<calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecurities_bc9026f4-2ac3-a12d-381a-50b0a56627fb" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_efefcee0-1cf0-0630-aa43-6a0932a55d70" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_HeldToMaturitySecuritiesFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesFairValue_d84744e1-e35d-80e8-74e5-519c7e2e20e3" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecurities_bc9026f4-2ac3-a12d-381a-50b0a56627fb" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesFairValue_d84744e1-e35d-80e8-74e5-519c7e2e20e3" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/InvestmentsTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/MedicalCostReserveDevelopmentAndMedicalCostsPayableDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/MedicalCostReserveDevelopmentAndMedicalCostsPayableNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/MedicalCostReserveDevelopmentAndMedicalCostsPayableTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/MedicalCostsAndMedicalCostsPayableRollforwardDetails" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsForLossesAndLossAdjustmentExpense" xlink:label="loc_us-gaap_PaymentsForLossesAndLossAdjustmentExpense_1fa55815-606e-9e3e-d078-bd8a2f3958e0" xlink:type="locator"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1" xlink:label="loc_us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1_65909a29-1111-2ea2-0f48-9968a906b525" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PaymentsForLossesAndLossAdjustmentExpense_1fa55815-606e-9e3e-d078-bd8a2f3958e0" xlink:to="loc_us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1_65909a29-1111-2ea2-0f48-9968a906b525" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1" xlink:label="loc_us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1_f12e1ef1-3243-f605-a63e-19c149d686c7" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PaymentsForLossesAndLossAdjustmentExpense_1fa55815-606e-9e3e-d078-bd8a2f3958e0" xlink:to="loc_us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1_f12e1ef1-3243-f605-a63e-19c149d686c7" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PolicyholderBenefitsAndClaimsIncurredHealthCare" xlink:label="loc_us-gaap_PolicyholderBenefitsAndClaimsIncurredHealthCare_2c8e0e0f-63f5-2d43-7ad0-27329a126959" xlink:type="locator"/>
<loc xlink:href="unh-20141231.xsd#unh_SupplementalInformationForCurrentYearClaimsandClaimsAdjustmentExpense" xlink:label="loc_unh_SupplementalInformationForCurrentYearClaimsandClaimsAdjustmentExpense_6efcee40-fd46-11e3-b035-22000a1e8102" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PolicyholderBenefitsAndClaimsIncurredHealthCare_2c8e0e0f-63f5-2d43-7ad0-27329a126959" xlink:to="loc_unh_SupplementalInformationForCurrentYearClaimsandClaimsAdjustmentExpense_6efcee40-fd46-11e3-b035-22000a1e8102" xlink:type="arc"/>
<loc xlink:href="unh-20141231.xsd#unh_SupplementalInformationForPriorYearClaimsandClaimsAdjustmentExpense" xlink:label="loc_unh_SupplementalInformationForPriorYearClaimsandClaimsAdjustmentExpense_e5f81286-fd41-11e3-b035-22000a1e8102" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PolicyholderBenefitsAndClaimsIncurredHealthCare_2c8e0e0f-63f5-2d43-7ad0-27329a126959" xlink:to="loc_unh_SupplementalInformationForPriorYearClaimsandClaimsAdjustmentExpense_e5f81286-fd41-11e3-b035-22000a1e8102" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwareDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwareNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwarePropertyPlantAndEquipmentTableDetails" xlink:type="extended">
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_a1eaafaf-055b-e423-85ef-4424fb2ef4e4" xlink:type="locator"/>
<loc xlink:href="unh-20141231.xsd#unh_PropertyPlantandEquipmentExcludingCapitalizedComputerSoftwareNet" xlink:label="loc_unh_PropertyPlantandEquipmentExcludingCapitalizedComputerSoftwareNet_b7e93438-8f0a-11e4-a13c-22000a9f3af2" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_a1eaafaf-055b-e423-85ef-4424fb2ef4e4" xlink:to="loc_unh_PropertyPlantandEquipmentExcludingCapitalizedComputerSoftwareNet_b7e93438-8f0a-11e4-a13c-22000a9f3af2" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LandAndLandImprovements" xlink:label="loc_us-gaap_LandAndLandImprovements_d3e029d7-8b39-a0fa-3d5b-f97168db94e8" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_unh_PropertyPlantandEquipmentExcludingCapitalizedComputerSoftwareNet_b7e93438-8f0a-11e4-a13c-22000a9f3af2" xlink:to="loc_us-gaap_LandAndLandImprovements_d3e029d7-8b39-a0fa-3d5b-f97168db94e8" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_BuildingsAndImprovementsGross" xlink:label="loc_us-gaap_BuildingsAndImprovementsGross_8778840e-08c3-f591-0639-9fa09c7a0691" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_unh_PropertyPlantandEquipmentExcludingCapitalizedComputerSoftwareNet_b7e93438-8f0a-11e4-a13c-22000a9f3af2" xlink:to="loc_us-gaap_BuildingsAndImprovementsGross_8778840e-08c3-f591-0639-9fa09c7a0691" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MachineryAndEquipmentGross" xlink:label="loc_us-gaap_MachineryAndEquipmentGross_9776c06d-1f02-6437-69bc-75a10eb689a4" xlink:type="locator"/>
<calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_unh_PropertyPlantandEquipmentExcludingCapitalizedComputerSoftwareNet_b7e93438-8f0a-11e4-a13c-22000a9f3af2" xlink:to="loc_us-gaap_MachineryAndEquipmentGross_9776c06d-1f02-6437-69bc-75a10eb689a4" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FurnitureAndFixturesGross" xlink:label="loc_us-gaap_FurnitureAndFixturesGross_dc2b42df-f998-acc8-baa5-ac2c40676775" xlink:type="locator"/>
<calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_unh_PropertyPlantandEquipmentExcludingCapitalizedComputerSoftwareNet_b7e93438-8f0a-11e4-a13c-22000a9f3af2" xlink:to="loc_us-gaap_FurnitureAndFixturesGross_dc2b42df-f998-acc8-baa5-ac2c40676775" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PropertyPlantAndEquipmentOtherAccumulatedDepreciation" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentOtherAccumulatedDepreciation_2f40db83-916b-9286-c663-734a73a0f4dc" xlink:type="locator"/>
<calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_unh_PropertyPlantandEquipmentExcludingCapitalizedComputerSoftwareNet_b7e93438-8f0a-11e4-a13c-22000a9f3af2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentOtherAccumulatedDepreciation_2f40db83-916b-9286-c663-734a73a0f4dc" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CapitalizedComputerSoftwareNet" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareNet_06ffdc6b-565c-93aa-b447-d14de2d66bf7" xlink:type="locator"/>
<calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_a1eaafaf-055b-e423-85ef-4424fb2ef4e4" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareNet_06ffdc6b-565c-93aa-b447-d14de2d66bf7" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CapitalizedComputerSoftwareGross" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareGross_2a64a072-9df0-1c33-31cb-f675aa833b59" xlink:type="locator"/>
<calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalizedComputerSoftwareNet_06ffdc6b-565c-93aa-b447-d14de2d66bf7" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareGross_2a64a072-9df0-1c33-31cb-f675aa833b59" xlink:type="arc"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CapitalizedComputerSoftwareAccumulatedAmortization" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareAccumulatedAmortization_e38fa94e-1e29-ab5e-c6c7-65605d7da671" xlink:type="locator"/>
<calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalizedComputerSoftwareNet_06ffdc6b-565c-93aa-b447-d14de2d66bf7" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareAccumulatedAmortization_e38fa94e-1e29-ab5e-c6c7-65605d7da671" xlink:type="arc"/>
</calculationLink>
<calculationLink xlink:role="http://www.uhc.com/role/PropertyPlantAndCapitalizedSoftwareTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/QuarterlyFinancialDataUnauditedTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ScheduleIBalanceSheetDocumentDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ScheduleICondensedBalanceSheetsDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ScheduleICondensedStatementOfComprehensiveIncomeDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ScheduleIDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ScheduleIMaturitiesOfCommercialPaperAndLongTermDebtDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ScheduleINotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ScheduleIStatementOfCashFlowsDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ScheduleITables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/SegmentFinancialInformationDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/SegmentFinancialInformationNarrativeDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/SegmentFinancialInformationNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/SegmentFinancialInformationTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareBasedCompensationNarrativeDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareBasedCompensationNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareBasedCompensationOtherShareBasedCompensationDataDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareBasedCompensationRestrictedShareActivityDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareBasedCompensationShareBasedCompensationPrincipalFairValueAssumptionsDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareBasedCompensationStockOptionAndSarActivityDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareBasedCompensationTables" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareholdersEquityDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareholdersEquityDividendsPaidDetails" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareholdersEquityNotes" xlink:type="extended"/>
<calculationLink xlink:role="http://www.uhc.com/role/ShareholdersEquityTables" xlink:type="extended"/>
</linkbase>

Top
Filing Submission 0000731766-15-000007   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
AboutPrivacyRedactionsHelp — Thu., Apr. 25, 9:21:08.1pm ET