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Unum Group – ‘10-Q’ for 9/30/23 – ‘EX-101.SCH’

On:  Wednesday, 11/1/23, at 4:27pm ET   ·   For:  9/30/23   ·   Accession #:  5513-23-192   ·   File #:  1-11294

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

11/01/23  Unum Group                        10-Q        9/30/23   94:28M

Quarterly Report   —   Form 10-Q

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   6.19M 
 2: EX-31.1     Certification -- §302 - SOA'02                      HTML     30K 
 3: EX-31.2     Certification -- §302 - SOA'02                      HTML     30K 
 4: EX-32.1     Certification -- §906 - SOA'02                      HTML     27K 
 5: EX-32.2     Certification -- §906 - SOA'02                      HTML     27K 
11: R1          Document and Entity Information                     HTML     84K 
12: R2          Consolidated Balance Sheets                         HTML    142K 
13: R3          Consolidated Balance Sheets (Parenthetical)         HTML     51K 
14: R4          Consolidated Statements of Income (Unaudited)       HTML    115K 
15: R5          Consolidated Statements of Comprehensive Income     HTML     62K 
16: R6          Statement of Comprehensive Income (Parenthetical)   HTML     40K 
17: R7          Consolidated Statements of Stockholders' Equity     HTML     73K 
18: R8          Consolidated Statements of Stockholders' Equity     HTML     28K 
                (Parenthetical)                                                  
19: R9          Consolidated Statements of Cash Flows (Unaudited)   HTML    119K 
20: R10         Basis of Presentation                               HTML     29K 
21: R11         Accounting Developments                             HTML    285K 
22: R12         Fair Values of Financial Instruments                HTML    552K 
23: R13         Investments                                         HTML    627K 
24: R14         Derivative Financial Instruments                    HTML    230K 
25: R15         Accumulated Other Comprehensive Income (Loss)       HTML    148K 
26: R16         Liability for Future Policy Benefits,               HTML    762K 
                Policyholder's Account Balances, and Deferred                    
                Acquisition Costs                                                
27: R17         Segment Information                                 HTML    214K 
28: R18         Employee Benefit Plans                              HTML     84K 
29: R19         Stockholders' Equity and Earnings Per Common Share  HTML     76K 
30: R20         Commitments and Contingent Liabilities              HTML     33K 
31: R21         Other                                               HTML     35K 
32: R22         Pay vs Performance Disclosure                       HTML     38K 
33: R23         Insider Trading Arrangements                        HTML     36K 
34: R24         Basis of Presentation (Policies)                    HTML     28K 
35: R25         Liability for Future Policy Benefits,               HTML     42K 
                Policyholder's Account Balances, and Deferred                    
                Acquisition Costs (Policies)                                     
36: R26         Accounting Changes and Error Corrections (Tables)   HTML    268K 
37: R27         Fair Values of Financial Instruments (Tables)       HTML    480K 
38: R28         Investments (Tables)                                HTML    619K 
39: R29         Derivative Financial Instruments (Tables)           HTML    223K 
40: R30         Accumulated Other Comprehensive Income (Loss)       HTML    149K 
                (Tables)                                                         
41: R31         Liability for Future Policy Benefits,               HTML    741K 
                Policyholder's Account Balances, and Deferred                    
                Acquisition Costs (Tables)                                       
42: R32         Segment Information (Tables)                        HTML    213K 
43: R33         Employee Benefit Plans (Tables)                     HTML     79K 
44: R34         Stockholders' Equity and Earnings Per Common Share  HTML     67K 
                (Tables)                                                         
45: R35         Accounting Developments (Details)                   HTML    562K 
46: R36         Fair Values of Financial Instruments Private        HTML     61K 
                Equity Partnerships (Details)                                    
47: R37         Fair Value Measurements by Input Level (Detail)     HTML    163K 
48: R38         Changes in Assets and Liabilities Measured at Fair  HTML    127K 
                Value on a Recurring Basis using Significant                     
                Unobservable Inputs (Level 3) (Detail)                           
49: R39         Quantitative Information Regarding Significant      HTML     58K 
                Unobservable Inputs (Details)                                    
50: R40         Fair Values of Financial Instruments Carrying       HTML     74K 
                Amounts and Estimated Fair value of Financial                    
                Instruments Not Measured at Fair Value (Details)                 
51: R41         Fair Value of Financial Instruments Additional      HTML     43K 
                Information (Detail)                                             
52: R42         Amortized Cost and Fair Values of Securities by     HTML     82K 
                Security Type (Detail)                                           
53: R43         Length of Time Fixed Maturity Securities had been   HTML     66K 
                in a Gross Unrealized Loss Position (Detail)                     
54: R44         Investments Distribution of the Maturity Dates for  HTML    102K 
                Fixed Maturity Securities (Details)                              
55: R45         Investments Distribution by External Credit Rating  HTML     46K 
                for Fixed Maturity Securities (Details)                          
56: R46         Debt Securities, Available-for-sale, Allowance for  HTML     38K 
                Credit Losses Rollforward (Details)                              
57: R47         Mortgage Loans by Property Type and Geographic      HTML     64K 
                Region (Detail)                                                  
58: R48         Schedule of Participating Mortgage Loans by         HTML     50K 
                Internal Credit Rating and Loan to Value (Details)               
59: R49         Mortgage Loans, Sorted by Applicable Credit         HTML    141K 
                Quality Indicators (Detail)                                      
60: R50         Mortgage Loans, Allowance for Credit Losses         HTML     64K 
                Rollforward (Details)                                            
61: R51         Investments Remaining Contractual Maturity of       HTML     45K 
                Secruity Lending Agreements (Details)                            
62: R52         Investments Federal Home Loan Bank Carrying         HTML     37K 
                Amount, Collateral Posted and Advances Received                  
                (Details)                                                        
63: R53         Investments Schedule of Financial Instrument and    HTML    148K 
                Derivative Offsetting (Details)                                  
64: R54         Investments Investment Income (Detail)              HTML     65K 
65: R55         Investment Gains and Losses Reported in             HTML     52K 
                Consolidated Statements of Income (Detail)                       
66: R56         Investments - Additional Information (Detail)       HTML    137K 
67: R57         Derivative Financial Instruments Nature and Amount  HTML     47K 
                of Collateral Received From and Posted To Our                    
                Derivative Counterparties (Details)                              
68: R58         Derivative Financial Instruments Fair Value Hedges  HTML     38K 
                Carrying Amount of Hedged Assets and Liabilities                 
                and Cumulative Basis Adjustments (Details)                       
69: R59         Location and Fair Values of Derivative Financial    HTML     79K 
                Instruments (Detail)                                             
70: R60         Derivative Financial Instruments Location of Gains  HTML     67K 
                and Losses Designated as Hedging Instruments,                    
                Consolidated Statements of Income (Details)                      
71: R61         Location of Gains and Losses on Derivative          HTML     37K 
                Instruments Designated as Cash Flow Hedging                      
                Instruments (Detail)                                             
72: R62         Gains and Losses on Derivatives Not Designated as   HTML     38K 
                Hedging Instruments (Detail)                                     
73: R63         Derivative Financial Instruments - Additional       HTML     74K 
                Information (Detail)                                             
74: R64         Schedule of Accumulated Other Comprehensive Income  HTML     77K 
                (Loss) (Details)                                                 
75: R65         Schedule of Reclassifications Out of Accumulated    HTML     80K 
                Other Comprehensive Income (Details)                             
76: R66         Liability for Future Policy Benefit Activity        HTML    466K 
                (Details)                                                        
77: R67         Policyholder Account Balance (Details)              HTML    101K 
78: R68         Policyholder Account Balance, Guaranteed Minimum    HTML    165K 
                Crediting (Details)                                              
79: R69         Deferred Policy Acquisition Costs (Details)         HTML     73K 
80: R70         Premium Income by Major Line of Business within     HTML     75K 
                Each Segment (Detail)                                            
81: R71         Selected Operating Statement Data by Segment        HTML     63K 
                (Detail)                                                         
82: R72         Assets by Segment (Detail)                          HTML     47K 
83: R73         Reconciliation of Total Revenue and Income Before   HTML     56K 
                Income Tax to Operating Revenue and Operating                    
                Income (Detail)                                                  
84: R74         Segment Information Segments - Additional           HTML     28K 
                Information (Detail)                                             
85: R75         Employee Benefit Plans Net Periodic Benefit Cost    HTML     57K 
                (Detail)                                                         
86: R76         Basic and Diluted Earnings Per Share (Detail)       HTML     62K 
87: R77         Treasury Stock Transactions (Details)               HTML     39K 
88: R78         Stockholders' Equity and Earnings Per Common Share  HTML     58K 
                - Additional Information (Detail)                                
89: R79         Allowance for Expected Credit Losses on Premiums    HTML     34K 
                Receivable (Details)                                             
92: XML         IDEA XML File -- Filing Summary                      XML    172K 
90: XML         XBRL Instance -- unm-20230930_htm                    XML  10.31M 
91: EXCEL       IDEA Workbook of Financial Report Info              XLSX    334K 
 7: EX-101.CAL  XBRL Calculations -- unm-20230930_cal                XML    231K 
 8: EX-101.DEF  XBRL Definitions -- unm-20230930_def                 XML   1.39M 
 9: EX-101.LAB  XBRL Labels -- unm-20230930_lab                      XML   2.90M 
10: EX-101.PRE  XBRL Presentations -- unm-20230930_pre               XML   1.84M 
 6: EX-101.SCH  XBRL Schema -- unm-20230930                          XSD    257K 
93: JSON        XBRL Instance as JSON Data -- MetaLinks              776±  1.18M 
94: ZIP         XBRL Zipped Folder -- 0000005513-23-000192-xbrl      Zip    788K 


‘EX-101.SCH’   —   XBRL Schema — unm-20230930


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<link:definition> 0000013 - Disclosure - Investments </link:definition>
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<link:definition> 9954472 - Disclosure - Liability for Future Policy Benefits, Policyholder's Account Balances, and Deferred Acquisition Costs (Policies) </link:definition>
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<link:definition> 9954473 - Disclosure - Accounting Changes and Error Corrections (Tables) </link:definition>
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<link:definition> 9954475 - Disclosure - Investments (Tables) </link:definition>
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<link:definition> 9954476 - Disclosure - Derivative Financial Instruments (Tables) </link:definition>
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<link:definition> 9954479 - Disclosure - Segment Information (Tables) </link:definition>
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<link:definition> 9954486 - Disclosure - Quantitative Information Regarding Significant Unobservable Inputs (Details) </link:definition>
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<link:definition> 9954487 - Disclosure - Fair Values of Financial Instruments Carrying Amounts and Estimated Fair value of Financial Instruments Not Measured at Fair Value (Details) </link:definition>
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<link:definition> 9954490 - Disclosure - Length of Time Fixed Maturity Securities had been in a Gross Unrealized Loss Position (Detail) </link:definition>
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<link:definition> 9954491 - Disclosure - Investments Distribution of the Maturity Dates for Fixed Maturity Securities (Details) </link:definition>
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<link:definition> 9954492 - Disclosure - Investments Distribution by External Credit Rating for Fixed Maturity Securities (Details) </link:definition>
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<link:definition> 9954493 - Disclosure - Debt Securities, Available-for-sale, Allowance for Credit Losses Rollforward (Details) </link:definition>
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<link:definition> 9954494 - Disclosure - Mortgage Loans by Property Type and Geographic Region (Detail) </link:definition>
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<link:definition> 9954496 - Disclosure - Mortgage Loans, Sorted by Applicable Credit Quality Indicators (Detail) </link:definition>
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<link:definition> 9954513 - Disclosure - Liability for Future Policy Benefit Activity (Details) </link:definition>
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<link:definition> 9954515 - Disclosure - Policyholder Account Balance, Guaranteed Minimum Crediting (Details) </link:definition>
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<link:definition> 9954516 - Disclosure - Deferred Policy Acquisition Costs (Details) </link:definition>
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<link:definition> 9954518 - Disclosure - Selected Operating Statement Data by Segment (Detail) </link:definition>
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<xs:element id="unm_FinancialInstrumentsFinancialAssetsFairValueDisclosureCarryingValue" abstract="false" name="FinancialInstrumentsFinancialAssetsFairValueDisclosureCarryingValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_OriginatedThreeYearsBeforeLastFiscalYearMember" abstract="true" name="OriginatedThreeYearsBeforeLastFiscalYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughFiveNet" abstract="false" name="DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughFiveNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_MiscellaneousLongTermInvestmentsCarryingValue" abstract="false" name="MiscellaneousLongTermInvestmentsCarryingValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsUnrealizedGainPositionGrossGain" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsUnrealizedGainPositionGrossGain" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_CreditRatingMember" abstract="true" name="CreditRatingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_SignificantTransactionAxis" abstract="true" name="SignificantTransactionAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
<xs:element id="unm_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsUnrealizedGainPositionGrossGain" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsUnrealizedGainPositionGrossGain" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_RepurchaseProgramAuthorizedInDecember2022Member" abstract="true" name="RepurchaseProgramAuthorizedInDecember2022Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
<xs:element id="unm_NetIncreaseDecreaseInPayablesForCollateralOnInvestments" abstract="false" name="NetIncreaseDecreaseInPayablesForCollateralOnInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_AvailableForSaleSecuritiesUnrealizedGainPositionGrossGain" abstract="true" name="AvailableForSaleSecuritiesUnrealizedGainPositionGrossGain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="unm_DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYear10Net" abstract="false" name="DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYear10Net" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_DebtSecuritiesAvailableForSaleMaturityWithoutSingleMaturityDateAmortizedCostNet" abstract="false" name="DebtSecuritiesAvailableForSaleMaturityWithoutSingleMaturityDateAmortizedCostNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_InvestmentIncomeAbstract" abstract="true" name="InvestmentIncomeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="unm_LoanToValueRatioTotalMember" abstract="true" name="LoanToValueRatioTotalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateYearOneNet" abstract="false" name="DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateYearOneNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_AcceleratedShareRepurchaseAgreementMember" abstract="true" name="AcceleratedShareRepurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_AvailableforSaleDebtSecuritiesbyExternalCreditRatingTableTextBlock" abstract="false" name="AvailableforSaleDebtSecuritiesbyExternalCreditRatingTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
<xs:element id="unm_LiabilityForFuturePolicyBenefitBeforeReinsuranceAfterOther" abstract="false" name="LiabilityForFuturePolicyBenefitBeforeReinsuranceAfterOther" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_FederalHomeLoanBankCarryingValueofCommonStockCollateralPostedandAdvancesTable" abstract="true" name="FederalHomeLoanBankCarryingValueofCommonStockCollateralPostedandAdvancesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
<xs:element id="unm_PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0600And0899Member" abstract="true" name="PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0600And0899Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_AvailableForSaleSecuritiesPercentOfTotalFairValue" abstract="false" name="AvailableForSaleSecuritiesPercentOfTotalFairValue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
<xs:element id="unm_PolicyholderAccountBalanceAfterReinsuranceRecoverable" abstract="false" name="PolicyholderAccountBalanceAfterReinsuranceRecoverable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_MountainMember" abstract="true" name="MountainMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_PacificMember" abstract="true" name="PacificMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_WestNorthCentralMember" abstract="true" name="WestNorthCentralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_NotRedeemableMember" abstract="true" name="NotRedeemableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_FairValueHedgesCarryingAmountofHedgedAssetsandLiabilitiesandCumulativeBasisAdjustmentsTableTextBlock" abstract="false" name="FairValueHedgesCarryingAmountofHedgedAssetsandLiabilitiesandCumulativeBasisAdjustmentsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
<xs:element id="unm_FederalHomeLoanBankCommonStockCarryingAmountsAmountsPostedandAdvancesReceivedTableTextBlock" abstract="false" name="FederalHomeLoanBankCommonStockCarryingAmountsAmountsPostedandAdvancesReceivedTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
<xs:element id="unm_OtherIncreaseDecrease" abstract="false" name="OtherIncreaseDecrease" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_EastSouthCentralMember" abstract="true" name="EastSouthCentralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_AmortizationOfPrepaidReinsurancePremium" abstract="false" name="AmortizationOfPrepaidReinsurancePremium" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0300And0599Member" abstract="true" name="PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0300And0599Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_OutstandingRestrictedStockAndStockSuccessUnitGrantPricesUpperLimit" abstract="false" name="OutstandingRestrictedStockAndStockSuccessUnitGrantPricesUpperLimit" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
<xs:element id="unm_RemovalOfShadowAdjustmentsDAC" abstract="false" name="RemovalOfShadowAdjustmentsDAC" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_AvailableForSaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossLossGrossSubtotal" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossLossGrossSubtotal" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateUnrealizedGainPositionGrossGain" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateUnrealizedGainPositionGrossGain" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_ScheduleOfParticipatingMortgageLoansByInternalCreditRatingAndLoanToValueTableTextBlock" abstract="false" name="ScheduleOfParticipatingMortgageLoansByInternalCreditRatingAndLoanToValueTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
<xs:element id="unm_IndividualDisabilityInsuranceMember" abstract="true" name="IndividualDisabilityInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_IndividualDisabilityMember" abstract="true" name="IndividualDisabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_Quarterly90DaysNoticeMember" abstract="true" name="Quarterly90DaysNoticeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_LoanToValueRatioBelowOrEqualTo65PercentMember" abstract="true" name="LoanToValueRatioBelowOrEqualTo65PercentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_EastNorthCentralMember" abstract="true" name="EastNorthCentralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_PrivateEquityLimitedPartnershipMember" abstract="true" name="PrivateEquityLimitedPartnershipMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_DebtSecuritiesAvailableforsaleUnrealizedGainLossFairValueDomain" abstract="true" name="DebtSecuritiesAvailableforsaleUnrealizedGainLossFairValueDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_CollateralRequirementsMinimumPercentageCollateralToFairValueOfSecuritiesLoanedOrPurchasedUnderRepurchaseAgreements" abstract="false" name="CollateralRequirementsMinimumPercentageCollateralToFairValueOfSecuritiesLoanedOrPurchasedUnderRepurchaseAgreements" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
<xs:element id="unm_CreditExposureMember" abstract="true" name="CreditExposureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_ClosedBlockMember" abstract="true" name="ClosedBlockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_GroupLifeAndADDMember" abstract="true" name="GroupLifeAndADDMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_HeirarchyLevelCombinationAxis" abstract="true" name="HeirarchyLevelCombinationAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
<xs:element id="unm_NetReserveChangeRelatedToReserveAssumptionUpdatesBeforeTax" abstract="false" name="NetReserveChangeRelatedToReserveAssumptionUpdatesBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_OtherObservableMarketDataMember" abstract="true" name="OtherObservableMarketDataMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_AvailableForSaleSecuritiesUnrealizedLossPositionFairValueMember" abstract="true" name="AvailableForSaleSecuritiesUnrealizedLossPositionFairValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYear5Through10Net" abstract="false" name="DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYear5Through10Net" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_NatureandAmountofCollateralReceivedFromandPostedToDerivativeCounterpartyTableTextBlock" abstract="false" name="NatureandAmountofCollateralReceivedFromandPostedToDerivativeCounterpartyTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
<xs:element id="unm_CostRelatedToEarlyRetirementOfDebt" abstract="false" name="CostRelatedToEarlyRetirementOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_CreditExposureAxis" abstract="true" name="CreditExposureAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
<xs:element id="unm_EffectOfChangeInDiscountRateAssumptions" abstract="false" name="EffectOfChangeInDiscountRateAssumptions" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_RealEstateReclassificationToHeldForSaleCarryingValue" abstract="false" name="RealEstateReclassificationToHeldForSaleCarryingValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_DebtSecuritiesAvailableforsalePrivate" abstract="false" name="DebtSecuritiesAvailableforsalePrivate" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_LoanToValueRatioAbove85PercentMember" abstract="true" name="LoanToValueRatioAbove85PercentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0500And0600Member" abstract="true" name="PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0500And0600Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0900And1199Member" abstract="true" name="PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0900And1199Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_FixedMaturitySecuritiesInUnrealizedLossPositionPercentOfTotal" abstract="false" name="FixedMaturitySecuritiesInUnrealizedLossPositionPercentOfTotal" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
<xs:element id="unm_TotalFinancialInstrumentLiabilitiesNotCarriedatFairValue" abstract="false" name="TotalFinancialInstrumentLiabilitiesNotCarriedatFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_InvestmentIncomeOnPfaAssets" abstract="false" name="InvestmentIncomeOnPfaAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_RedemptionTermAxis" abstract="true" name="RedemptionTermAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
<xs:element id="unm_AvailableForSaleSecuritiesUnrealizedLossPositionGrossLossSubtotal" abstract="false" name="AvailableForSaleSecuritiesUnrealizedLossPositionGrossLossSubtotal" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_UnumInternationalMember" abstract="true" name="UnumInternationalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_OtherInvestmentsGrossRealizedGains" abstract="false" name="OtherInvestmentsGrossRealizedGains" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_LiabilityForFuturePolicyBenefitBeforeReinsuranceBeforeOther" abstract="false" name="LiabilityForFuturePolicyBenefitBeforeReinsuranceBeforeOther" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_DistributionbyExternalCreditRatingforFixedMaturitySecuritiesAbstract" abstract="true" name="DistributionbyExternalCreditRatingforFixedMaturitySecuritiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="unm_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsUnrealizedGainPositionGrossGain" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsUnrealizedGainPositionGrossGain" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_UnumUsMember" abstract="true" name="UnumUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_LoanToValueRatioAbove65To75PercentMember" abstract="true" name="LoanToValueRatioAbove65To75PercentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_UnumPolandMember" abstract="true" name="UnumPolandMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_PolicyLoansCededtoReinsurers" abstract="false" name="PolicyLoansCededtoReinsurers" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_OffsettingForDerivativesAndSecuritiesLendingBalancesAbstract" abstract="true" name="OffsettingForDerivativesAndSecuritiesLendingBalancesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="unm_FairValuesOfFinancialInstrumentsAdditionalInformationAbstract" abstract="true" name="FairValuesOfFinancialInstrumentsAdditionalInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="unm_FinancialInstrumentsFinancialAssetsFairValueDisclosureTotal" abstract="false" name="FinancialInstrumentsFinancialAssetsFairValueDisclosureTotal" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_PolicyholderAccountBalanceReservesInExcessOfAccountBalance" abstract="false" name="PolicyholderAccountBalanceReservesInExcessOfAccountBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="unm_PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0400And0500Member" abstract="true" name="PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0400And0500Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_LocationAndFairValuesOfDerivativeFinancialInstrumentsAbstract" abstract="true" name="LocationAndFairValuesOfDerivativeFinancialInstrumentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="unm_RedemptionTermDomain" abstract="true" name="RedemptionTermDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
<xs:element id="unm_TypeOfCommonStockRepurchaseAxis" abstract="true" name="TypeOfCommonStockRepurchaseAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
<xs:element id="unm_DebtSecuritiesAvailableforsaleUnrealizedGainLossFairValueAxis" abstract="true" name="DebtSecuritiesAvailableforsaleUnrealizedGainLossFairValueAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
<xs:element id="unm_OtherPolicyholdersFunds" abstract="false" name="OtherPolicyholdersFunds" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>

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