Unum Group UNM Financial Statement Data


2025 Q2

Submissions

Field Row 1
adsh 0000005513-25-000059
cik 5513
name UNUM GROUP
sic 6321
countryba US
stprba TN
cityba CHATTANOOGA
zipba 37402
bas1 1 FOUNTAIN SQUARE
bas2
baph 423-294-1011
countryma US
stprma TN
cityma CHATTANOOGA
zipma 37402
mas1 1 FOUNTAIN SQUARE
mas2
countryinc US
stprinc DE
ein 621598430
former UNUMPROVIDENT CORP
changed 19990702
afs 1-LAF
wksi 0
fye 1231
form 10-Q
period 20250331
fy 2025
fp Q1
filed 20250430
accepted 2025-04-30 16:33:00.0
prevrpt 0
detail 1
instance unm-20250331_htm.xml
nciks 1
aciks

Description
Field Name Field Description
adsh Accession Number. The 20-character string formed from the 18-digit number assigned by the SEC to each EDGAR submission.
cik Central Index Key (CIK). Ten digit number assigned by the SEC to each registrant that submits filings.
name Name of registrant. This corresponds to the name of the legal entity as recorded in EDGAR as of the filing date.
sic Standard Industrial Classification (SIC). Four digit code assigned by the SEC as of the filing date, indicating the registrant’s type of business.
countryba The ISO 3166-1 country of the registrant's business address.
stprba The state or province of the registrant’s business address, if field countryba is US or CA.
cityba The city of the registrant's business address.
zipba The zip code of the registrant’s business address.
bas1 The first line of the street of the registrant’s business address.
bas2 The second line of the street of the registrant’s business address.
baph The phone number of the registrant’s business address.
countryma The ISO 3166-1 country of the registrant's mailing address.
stprma The state or province of the registrant’s mailing address, if field countryma is US or CA.
cityma The city of the registrant's mailing address.
zipma The zip code of the registrant’s mailing address.
mas1 The first line of the street of the registrant’s mailing address.
mas2 The second line of the street of the registrant’s mailing address.
countryinc The ISO 3166-1 country of incorporation for the registrant.
stprinc The state or province of incorporation for the registrant, if countryinc is US or CA.
ein Employee Identification Number, 9 digit identification number assigned by the Internal Revenue Service to business entities operating in the United States.
former Most recent former name of the registrant, if any.
changed Date of change from the former name, if any.
afs Filer status with the SEC at the time of submission:
1-LAF=Large Accelerated, 2-ACC=Accelerated, 3-SRA=Smaller Reporting Accelerated, 4-NON=Non-Accelerated, 5-SML=Smaller Reporting Filer, NULL=not assigned.
wksi Well Known Seasoned Issuer (WKSI). An issuer that meets specific SEC requirements at some point during a 60-day period preceding the date the issuer satisfies its obligation to update its shelf registration statement.
fye Fiscal Year End Date, rounded to nearest month-end.
form The submission type of the registrant’s filing.
period Balance Sheet Date, rounded to nearest month-end.
fy Fiscal Year Focus (as defined in the EDGAR XBRL Guide Ch. 3.1.8).
fp Fiscal Period Focus (as defined in the EDGAR XBRL Guide Ch. 3.1.8) within Fiscal Year.
filed The date of the registrant’s filing with the Commission.
accepted The acceptance date and time of the registrant’s filing with the Commission.
prevrpt Previous Report – TRUE indicates that the submission information was subsequently amended.
detail TRUE indicates that the XBRL submission contains quantitative disclosures within the footnotes and schedules at the required detail level (e.g., each amount).
instance The name of the submitted XBRL Instance Document. The name often begins with the company ticker symbol.
nciks Number of Central Index Keys (CIK) of registrants (i.e., business units) included in the consolidating entity’s submitted filing.
aciks Additional CIKs of co-registrants included in a consolidating entity’s EDGAR submission, separated by spaces. If there are no other co-registrants (i.e., nciks=1), the value of aciks is NULL. For a very small number of filers, the entire list of co-registrants is too long to fit in the field. Where this is the case, users should refer to the complete submission file for all CIK information.

Numbers

adsh ddate tag value uom qtrs version segments coreg footnote
0000005513-25-000059 20241231 Accrued Investment Income Receivable 649800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Available For Sale Debt Securities Amortized Cost Basis 949400000.0000 USD 0 us-gaap/2025 Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20250331 Available For Sale Debt Securities Amortized Cost Basis 3682700000.0000 USD 0 us-gaap/2025 Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 768100000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 145000000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 24822200000.0000 USD 0 us-gaap/2025 Financial Instrument= All Other Corporate Bonds;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 768100000.0000 USD 0 us-gaap/2025 Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 27578700000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 4785400000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 3257800000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 454900000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 960800000.0000 USD 0 us-gaap/2025 Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20231231 Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents 146000000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Commitments And Contingencies USD 0 us-gaap/2025
0000005513-25-000059 20240331 Common Stock Dividends Per Share Cash Paid 0.3650 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Common Stock Value 19500000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Debt Securities Available For Sale Allowance For Credit Loss 2800000.0000 USD 0 us-gaap/2025 Financial Instrument= Debt Securities;
0000005513-25-000059 20241231 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20250331 Debt Securities Available For Sale Allowance For Credit Loss 3800000.0000 USD 0 us-gaap/2025 Financial Instrument= Debt Securities;
0000005513-25-000059 20250331 Deferred Income Tax Liabilities Net 32800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 126200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 125400000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20231231 Deferred Policy Acquisition Costs 497800000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Individual Disability;
0000005513-25-000059 20231231 Deferred Policy Acquisition Costs 2714500000.0000 USD 0 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferred Policy Acquisition Costs 48300000.0000 USD 0 us-gaap/2025 Business Segments= Unum International;
0000005513-25-000059 20240331 Deferred Policy Acquisition Costs 611700000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Voluntary Benefits;
0000005513-25-000059 20241231 Deferred Policy Acquisition Costs 1260600000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us;
0000005513-25-000059 20241231 Deferred Policy Acquisition Costs 521200000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Individual Disability;
0000005513-25-000059 20250331 Deferred Policy Acquisition Costs 2893200000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Earnings Per Share Basic 2.0500 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Financing Receivable Allowance For Credit Losses 3400000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above65 To75 Percent;
0000005513-25-000059 20240331 Financing Receivable Allowance For Credit Losses 2500000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above85 Percent;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 13700000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Five Or More Years Before Last Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 8000000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above85 Percent;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 16600000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 1700000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above65 To75 Percent;
0000005513-25-000059 20240331 Gain Loss On Investments -1200000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Gain Loss On Investments -100000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Gain Loss On Investments -30900000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments; Significant Transaction= Unrelated To Significant Transaction;
0000005513-25-000059 20250331 Gain Loss On Investments -44700000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Net Unrealized Investment Gain Loss; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Increase Decrease In Accrued Income Taxes Payable 107200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Increase Decrease In Insurance Liabilities -112300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Increase Decrease In Other Accrued Liabilities -144800000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Increase Decrease In Receivables -103500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Increase Decrease In Receivables -202400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Insurance Commissions 97300000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Insurance Commissions 0.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Fair Value Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Interest Expense;
0000005513-25-000059 20240331 Interest And Debt Expense 700000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Interest Rate Swap; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Interest Expense;
0000005513-25-000059 20240331 Labor And Related Expense 305800000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Liabilities And Stockholders Equity 61959300000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Liability For Future Policy Benefits 241700000.0000 USD 0 us-gaap/2025 Business Segments= Other Products;
0000005513-25-000059 20240331 Liability For Future Policy Benefits 9054000000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; 1Unum US excludes dental & vision and medical stop-loss product lines and Closed Block excludes our participating fund account, which represents policies issued by one of our subsidiaries prior to its 1986 conversion from a mutual stock life insurance company. The liabilities associated with these products are included within Other products.
0000005513-25-000059 20241231 Liability For Future Policy Benefits 36806400000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Loans Insurance Policy 3636400000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Loans Insurance Policy 3636400000.0000 USD 0 us-gaap/2025 Fair Value By Measurement Frequency= Fair Value Measurements Nonrecurring;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 456500000.0000 USD 0 us-gaap/2025 Geographical= Pacific;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 151100000.0000 USD 0 us-gaap/2025 Geographical= West North Central;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 367600000.0000 USD 0 us-gaap/2025 Loan To Value= Loan To Value Ratio Above65 To75 Percent;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 152300000.0000 USD 0 us-gaap/2025 Loan To Value= Loan To Value Ratio Above75 To85 Percent;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 496200000.0000 USD 0 us-gaap/2025 Mortgage Loans On Real Estate Description Type Of Property= Retail Site;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 2187700000.0000 USD 0 us-gaap/2025 Fair Value By Measurement Frequency= Fair Value Measurements Nonrecurring;
0000005513-25-000059 20250331 Net Cash Provided By Used In Financing Activities -266600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Net Investment Income 513500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Net Investment Income 9000000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Forward Contracts; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Investment Income;
0000005513-25-000059 20240331 Oci Liability For Future Policy Benefit Gain Loss Before Reclassification Adjustment Tax 234100000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Other Comprehensive Income Loss Available For Sale Securities Tax -119200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Comprehensive Income Loss Net Of Tax 344900000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Comprehensive Income Loss Net Of Tax 42300000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Translation Adjustment;
0000005513-25-000059 20240331 Other Income 3000000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Other Income 9900000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Other Policyholders Funds 1526700000.0000 USD 0 0000005513-25-000059
0000005513-25-000059 20240331 Payments For Repurchase Of Common Stock 121900000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Payments To Acquire Other Investments 98800000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Policyholder Funds 868200000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20240331 Policyholder Funds 673800000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Voluntary Benefits;
0000005513-25-000059 20250331 Policyholder Funds 5620800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Premiums And Other Receivables Net 1557100000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Premiums Earned Net 48700000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments; Product Or Service= Group Life;
0000005513-25-000059 20240331 Premiums Earned Net 74300000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Dentaland Vision;
0000005513-25-000059 20240331 Premiums Earned Net 516700000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Group Long Term Disability;
0000005513-25-000059 20240331 Premiums Earned Net 142000000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Individual Disability;
0000005513-25-000059 20250331 Premiums Earned Net 504500000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Group Long Term Disability;
0000005513-25-000059 20240331 Premiums Receivable Allowance For Doubtful Accounts 30000000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities 396700000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Revenues 3091600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Revenues 3091600000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Stockholders Equity 1568700000.0000 USD 0 us-gaap/2025 Equity Components= Additional Paid In Capital;
0000005513-25-000059 20250331 Stockholders Equity 13025800000.0000 USD 0 us-gaap/2025 Equity Components= Retained Earnings;
0000005513-25-000059 20250331 Treasury Stock Common Shares 20127386.0000 shares 0 us-gaap/2025
0000005513-25-000059 20240331 Treasury Stock Value Acquired Cost Method 123000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Treasury Stock Value Acquired Cost Method 202600000.0000 USD 1 us-gaap/2025 2Includes $0.5 million and a de minimis amount of commissions for the three months ended March 31, 2025 and 2024, respectively. Also includes $2.1 million and $1.1 million of excise taxes for the three months ended March 31, 2025 and 2024, respectively.
0000005513-25-000059 20250331 Treasury Stock Value Acquired Cost Method 80300000.0000 USD 1 us-gaap/2025 Equity Components= Additional Paid In Capital;
0000005513-25-000059 20241231 Assets 33376000000.0000 USD 0 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Available For Sale Debt Securities Amortized Cost Basis 38269900000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Available For Sale Debt Securities Amortized Cost Basis 8000000.0000 USD 0 us-gaap/2025 Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20241231 Available For Sale Debt Securities Amortized Cost Basis 544600000.0000 USD 0 us-gaap/2025 Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20250331 Available For Sale Debt Securities Amortized Cost Basis 5442000000.0000 USD 0 us-gaap/2025 Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20250331 Common Stock Dividends Per Share Cash Paid 0.4200 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Additional Paid In Capital Common Stock 1489600000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Additional Paid In Capital Common Stock 1568700000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Assets 62459800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Assets 5939700000.0000 USD 0 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Assets 3388300000.0000 USD 0 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Available For Sale Debt Securities Amortized Cost Basis 37860200000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 174500000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 843700000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 917200000.0000 USD 0 us-gaap/2025 Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 24822200000.0000 USD 0 us-gaap/2025 Financial Instrument= Corporate Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 7600000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 21200000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Financial Instrument= Asset Backed Securities; Valuation Technique= Market Approach Valuation Technique; Represents basis point adjustments for credit-specific factors | Represents a decision to price based on par value, cost, owner's equity, or the price of the most recent capital funding round when limited data is available
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 16300000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Financial Instrument= Corporate Debt Securities; Valuation Technique= Market Approach Valuation Technique;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 34297500000.0000 USD 0 us-gaap/2025 External Credit Rating By Grouping= External Credit Rating Investment Grade;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 7700000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 35751400000.0000 USD 0 us-gaap/2025 Financial Instrument= Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 7700000.0000 USD 0 us-gaap/2025 Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20241231 Common Stock Shares Authorized 725000000.0000 shares 0 us-gaap/2025
0000005513-25-000059 20250331 Debt Securities Available For Sale Allowance For Credit Loss 3800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Deferral Of Acquisition Costs 79300000.0000 USD 1 0000005513-25-000059 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferral Of Acquisition Costs 166900000.0000 USD 1 0000005513-25-000059 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferral Of Acquisition Costs 5300000.0000 USD 1 0000005513-25-000059 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferral Of Acquisition Costs 172600000.0000 USD 1 0000005513-25-000059 Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Deferred Income Tax Liabilities Net 31000000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 69800000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 57700000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 57700000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 3500000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Dentaland Vision;
0000005513-25-000059 20240331 Deferred Policy Acquisition Costs 65700000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Disability;
0000005513-25-000059 20241231 Deferred Policy Acquisition Costs 12900000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Dentaland Vision;
0000005513-25-000059 20250331 Depreciation Amortization And Accretion Net 30000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Earnings Per Share Diluted 2.0400 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Debt Securities Available For Sale Allowance For Credit Loss 2200000.0000 USD 0 us-gaap/2025 Financial Instrument= All Other Corporate Bonds;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 530500000.0000 USD 0 us-gaap/2025 Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 810300000.0000 USD 0 us-gaap/2025 Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 3257800000.0000 USD 0 us-gaap/2025 Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20241231 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20241231 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20250331 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20250331 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20240331 Deferral Of Acquisition Costs 0.0000 USD 1 0000005513-25-000059 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferral Of Acquisition Costs 172600000.0000 USD 1 0000005513-25-000059
0000005513-25-000059 20241231 Deferred Income Tax Assets Net 369700000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Deferred Income Tax Expense Benefit 13200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 2500000.0000 USD 1 us-gaap/2025 Business Segments= Unum International;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 10400000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Disability;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 6100000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Life And A D D;
0000005513-25-000059 20231231 Deferred Policy Acquisition Costs 11300000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Dentaland Vision;
0000005513-25-000059 20241231 Deferred Policy Acquisition Costs 61100000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Disability;
0000005513-25-000059 20241231 Deferred Policy Acquisition Costs 51100000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Life And A D D;
0000005513-25-000059 20250331 Deferred Policy Acquisition Costs 13200000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Dentaland Vision;
0000005513-25-000059 20250331 Deferred Policy Acquisition Costs 66800000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Disability;
0000005513-25-000059 20240331 Depreciation Amortization And Accretion Net 30100000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Dividends Cash 72600000.0000 USD 1 us-gaap/2025 Equity Components= Retained Earnings;
0000005513-25-000059 20250331 Earnings Per Share Diluted 1.0600 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Financing Receivable Allowance For Credit Losses 10700000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 16100000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 1000000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Three Years Before Last Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20231231 Financing Receivable Allowance For Credit Losses 1200000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above75 To85 Percent;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 300000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Two Years Before Last Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 3800000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Below Or Equal To65 Percent;
0000005513-25-000059 20240331 Gain Loss On Investments 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Interest Rate Swap; Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Gain Loss On Investments -100000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20241231 Goodwill 349100000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Income Tax Expense Benefit 1200000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Income Tax Expense Benefit 54500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Income Tax Expense Benefit -800000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Defined Benefit Plans Adjustment; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Increase Decrease In Accrued Income Taxes Payable 53300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Insurance Commissions 182200000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Insurance Commissions 313600000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Insurance Commissions 17900000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Interest And Debt Expense 49500000.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Interest And Debt Expense 52000000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Interest Rate Swap; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Interest Expense;
0000005513-25-000059 20250331 Labor And Related Expense 310400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Liabilities 50998200000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Liability For Future Policy Benefit Remeasurement Gain Loss 107700000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Long Term Debt And Capital Lease Obligations 3465200000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Long Term Debt And Capital Lease Obligations 3467000000.0000 USD 0 us-gaap/2025 Fair Value By Measurement Frequency= Fair Value Measurements Nonrecurring;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 1541000000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Five Or More Years Before Last Fiscal Year;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 154200000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Four Years Before Last Fiscal Year;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 915500000.0000 USD 0 us-gaap/2025 Internal Credit Assessment= B B B Credit Rating;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 1618700000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Five Or More Years Before Last Fiscal Year;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 86900000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Three Years Before Last Fiscal Year;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 284700000.0000 USD 0 us-gaap/2025 Geographical= East North Central;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 452700000.0000 USD 0 us-gaap/2025 Geographical= Pacific;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 521300000.0000 USD 0 us-gaap/2025 Geographical= South Atlantic;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 93600000.0000 USD 0 us-gaap/2025 Internal Credit Assessment= A A Credit Rating;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 362200000.0000 USD 0 us-gaap/2025 Loan To Value= Loan To Value Ratio Above65 To75 Percent;
0000005513-25-000059 20250331 Net Income Loss -156400000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Net Unrealized Investment Gain Loss; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Net Investment Income 157000000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Net Investment Income 513500000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Net Investment Income 148900000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Net Investment Income 4400000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Fair Value Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Investment Income;
0000005513-25-000059 20250331 Net Investment Income 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Other Assets 1634700000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax -441700000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax -11500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Other Comprehensive Income Loss Net Of Tax -11500000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Translation Adjustment;
0000005513-25-000059 20240331 Other Income 700000.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Other Income 300000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Other Income 82300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Income 100000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Other Income 82300000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Other Long Term Investments 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Other Long Term Investments 1435300000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Payments Of Dividends 77100000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Payments To Acquire Available For Sale Securities Debt 575000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Payments To Acquire Property Plant And Equipment 35800000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Policyholder Benefits And Claims Incurred Net 1960300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Policyholder Funds 4097000000.0000 USD 0 us-gaap/2025 Business Segments= Closed Block; Product Or Service= Other Insurance Product Line;
0000005513-25-000059 20250331 Policyholder Funds 5620800000.0000 USD 0 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Premiums Earned Net 174500000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments; Product Or Service= Long Term Care;
0000005513-25-000059 20240331 Premiums Earned Net 89400000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments; Product Or Service= Cancer And Critical Illness Colonial;
0000005513-25-000059 20240331 Premiums Earned Net 114300000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments; Product Or Service= Life Insurance Segment;
0000005513-25-000059 20240331 Premiums Earned Net 43100000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments; Product Or Service= Supplementaland Voluntary Insurance;
0000005513-25-000059 20250331 Premiums Earned Net 247100000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments; Product Or Service= Accident And Health Insurance Segment;
0000005513-25-000059 20250331 Premiums Earned Net 100200000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments; Product Or Service= Group Long Term Disability;
0000005513-25-000059 20250331 Premiums Earned Net 43000000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments; Product Or Service= Unum Poland;
0000005513-25-000059 20240331 Proceeds From Issuance Of Common Stock 1300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Proceeds From Issuance Of Common Stock 1400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Retained Earnings Accumulated Deficit 13025800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20231231 Stockholders Equity 19400000.0000 USD 0 us-gaap/2025 Equity Components= Common Stock;
0000005513-25-000059 20231231 Stockholders Equity -39300000.0000 USD 0 us-gaap/2025 Equity Components= Treasury Stock Common;
0000005513-25-000059 20250331 Treasury Stock Value Acquired Cost Method 282900000.0000 USD 1 us-gaap/2025 Equity Components= Treasury Stock Common;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 200000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated In Fiscal Year Before Latest Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20240331 Gain Loss On Investments -1200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Gain Loss On Investments -17600000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Fair Value Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Gain Loss On Investments Member1;
0000005513-25-000059 20240331 Gain Loss On Investments -15800000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Net Unrealized Investment Gain Loss; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20241231 Goodwill 41400000.0000 USD 0 us-gaap/2025 Business Segments= Unum International;
0000005513-25-000059 20250331 Increase Decrease In Accrued Investment Income Receivable 18300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Increase Decrease In Deferred Policy Acquisition Costs 40700000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Insurance Commissions 343200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Insurance Commissions 343200000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Interest And Debt Expense 49500000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 297200000.0000 USD 0 us-gaap/2025 Geographical= East North Central;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 117800000.0000 USD 0 us-gaap/2025 Internal Credit Assessment= A A Credit Rating;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 338400000.0000 USD 0 us-gaap/2025 Mortgage Loans On Real Estate Description Type Of Property= Office Building;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 148800000.0000 USD 0 us-gaap/2025 Geographical= West North Central;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 15600000.0000 USD 0 us-gaap/2025 Internal Credit Assessment= B Credit Rating;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 40900000.0000 USD 0 us-gaap/2025 Mortgage Loans On Real Estate Description Type Of Property= Other Property;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 489400000.0000 USD 0 us-gaap/2025 Mortgage Loans On Real Estate Description Type Of Property= Retail Site;
0000005513-25-000059 20240331 Net Cash Provided By Used In Financing Activities -182900000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Net Cash Provided By Used In Investing Activities -12100000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Net Income Loss -3200000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Defined Benefit Plans Adjustment; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Net Investment Income 39300000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax 42300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax -200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Comprehensive Income Loss Net Of Tax 1400000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Defined Benefit Plans Adjustment;
0000005513-25-000059 20240331 Other Income 13100000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Other Liabilities 2519200000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Other Long Term Investments 1450600000.0000 USD 0 us-gaap/2025 Consolidated Entities= Variable Interest Entity Not Primary Beneficiary; Financial Instrument= Equity Method Investments;
0000005513-25-000059 20241231 Other Long Term Investments 35900000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Other Long Term Investments 200000.0000 USD 0 us-gaap/2025 Consolidated Entities= Variable Interest Entity Not Primary Beneficiary; Financial Instrument= Tax Credit Partnership;
0000005513-25-000059 20240331 Payments Of Dividends 72500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Premiums Earned Net 2610300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Premiums Earned Net 446900000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Premiums Earned Net 41800000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments; Product Or Service= Other Insurance Product Line;
0000005513-25-000059 20250331 Premiums Earned Net 246700000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Premiums Earned Net 2702900000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Proceeds From Sale Of Available For Sale Securities Debt 190100000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Retained Earnings Accumulated Deficit 12914000000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Stockholders Equity 10219500000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Stockholders Equity 11754100000.0000 USD 0 us-gaap/2025 Equity Components= Retained Earnings;
0000005513-25-000059 20240331 Stockholders Equity -162300000.0000 USD 0 us-gaap/2025 Equity Components= Treasury Stock Common;
0000005513-25-000059 20250331 Stockholders Equity 11214000000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Stockholders Equity -2178800000.0000 USD 0 us-gaap/2025 Equity Components= Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Stockholders Equity 19500000.0000 USD 0 us-gaap/2025 Equity Components= Common Stock;
0000005513-25-000059 20241231 Taxes Payable Current And Noncurrent 226500000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Treasury Stock Value 938300000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Treasury Stock Value Acquired Cost Method 0.0000 USD 1 us-gaap/2025 Equity Components= Additional Paid In Capital;
0000005513-25-000059 20240331 Treasury Stock Value Acquired Cost Method 123000000.0000 USD 1 us-gaap/2025 Equity Components= Treasury Stock Common;
0000005513-25-000059 20250331 Current Income Tax Expense Benefit 80400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Accrued Investment Income Receivable 622900000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Accrued Investment Income Receivable 6300000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20241231 Accumulated Other Comprehensive Income Loss Net Of Tax -2523700000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Additions To Contract Holders Funds 32300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 73500000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 35751400000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 7482600000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Corporate Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 883600000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 17379000000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Corporate Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 109500000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 77200000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20250331 Benefits Losses And Expenses 2848000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents 162800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Common Stock Par Or Stated Value Per Share 0.1000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20250331 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 2400000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 16100000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Individual Disability;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 125400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 65200000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferred Policy Acquisition Costs 1245700000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us;
0000005513-25-000059 20240331 Deferred Policy Acquisition Costs 12100000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Dentaland Vision;
0000005513-25-000059 20241231 Deferred Policy Acquisition Costs 2842800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Deferred Policy Acquisition Costs 1554100000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20250331 Dividends Cash 77300000.0000 USD 1 us-gaap/2025 Equity Components= Retained Earnings;
0000005513-25-000059 20250331 Earnings Per Share Basic 1.0600 USD 1 us-gaap/2025
0000005513-25-000059 20231231 Financing Receivable Allowance For Credit Losses 10200000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20240331 Financing Receivable Allowance For Credit Losses 1200000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above75 To85 Percent;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 500000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Four Years Before Last Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 2200000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above75 To85 Percent;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 16600000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20240331 Gain Loss On Investments 0.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments; Significant Transaction= Long Term Care And Individual Disability Reinsurance Transaction;
0000005513-25-000059 20240331 Gain Loss On Investments 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Gain Loss On Investments Member1;
0000005513-25-000059 20250331 Gain Loss On Investments -206800000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Gain Loss On Investments 400000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Interest Rate Swap; Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Goodwill 350600000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Increase Decrease In Other Accrued Liabilities -203500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Insurance Commissions 313600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Interest Expense;
0000005513-25-000059 20250331 Interest And Debt Expense 52000000.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Investments 46230600000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Liabilities And Stockholders Equity 62459800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Liability For Future Policy Benefits 2213300000.0000 USD 0 us-gaap/2025 Business Segments= Unum International;
0000005513-25-000059 20250331 Liability For Future Policy Benefits 2210800000.0000 USD 0 us-gaap/2025 Business Segments= Unum International;
0000005513-25-000059 20250331 Liability For Future Policy Benefits 8611100000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us;
0000005513-25-000059 20250331 Liability For Future Policy Benefits 37030700000.0000 USD 0 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Long Term Debt Current 274600000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 46000000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated In Current Fiscal Year;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 167200000.0000 USD 0 us-gaap/2025 Geographical= Middle Atlantic;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 327300000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Four Years Before Last Fiscal Year;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 66200000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Two Years Before Last Fiscal Year;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 280200000.0000 USD 0 us-gaap/2025 Geographical= Mountain;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 51900000.0000 USD 0 us-gaap/2025 Geographical= New England;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 188500000.0000 USD 0 us-gaap/2025 Geographical= West South Central;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 192600000.0000 USD 0 us-gaap/2025 Loan To Value= Loan To Value Ratio Above75 To85 Percent;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 653400000.0000 USD 0 us-gaap/2025 Mortgage Loans On Real Estate Description Type Of Property= Apartment Building;
0000005513-25-000059 20240331 Net Income Loss 4400000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Net Investment Income 273100000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Net Investment Income 23900000.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Oci Liability For Future Policy Benefit Gain Loss Before Reclassification Adjustment After Tax 873700000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Oci Liability For Future Policy Benefit Gain Loss Before Reclassification Adjustment Tax -42600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Other Comprehensive Income Loss Net Gain On Derivatives Adjustment Tax -14100000.0000 USD 1 0000005513-25-000059
0000005513-25-000059 20250331 Other Comprehensive Income Loss Net Gain On Derivatives Adjustment Tax 11700000.0000 USD 1 0000005513-25-000059
0000005513-25-000059 20240331 Other Comprehensive Income Loss Net Of Tax 873700000.0000 USD 1 us-gaap/2025 Equity Components= Aoci Liability For Future Policy Benefit Parent;
0000005513-25-000059 20250331 Other Comprehensive Income Loss Net Of Tax 344900000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax -1400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax -9400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Other Cost And Expense Operating -100000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Defined Benefit Plans Adjustment Net Prior Service Cost Credit; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Other Cost And Expense Operating 4200000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Defined Benefit Plans Adjustment Net Unamortized Gain Loss; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Other Income 77700000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Other Long Term Investments 1566000000.0000 USD 0 us-gaap/2025 Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Other Long Term Investments 36400000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Other Short Term Investments 2965300000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Payments For Proceeds From Short Term Investments 391400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Payments To Acquire Available For Sale Securities Debt 416800000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Policyholder Benefits And Claims Incurred Net 1893000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Policyholder Funds 674100000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Voluntary Benefits;
0000005513-25-000059 20241231 Assets 3291300000.0000 USD 0 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Assets 14839300000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Available For Sale Debt Securities Amortized Cost Basis 26535200000.0000 USD 0 us-gaap/2025 Financial Instrument= All Other Corporate Bonds;
0000005513-25-000059 20241231 Available For Sale Debt Securities Amortized Cost Basis 38269900000.0000 USD 0 us-gaap/2025 Financial Instrument= Debt Securities;
0000005513-25-000059 20250331 Available For Sale Debt Securities Amortized Cost Basis 537400000.0000 USD 0 us-gaap/2025 Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 23473500000.0000 USD 0 us-gaap/2025 Debt Securities Availableforsale Unrealized Gain Loss Fair Value= Available For Sale Securities Unrealized Loss Position Fair Value;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 4180500000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 77900000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 20822600000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Corporate Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Corporate Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 810300000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 32300000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Corporate Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 15700000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Financial Instrument= Corporate Debt Securities; Valuation Technique= Market Approach Valuation Technique;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20250331 Cash 237700000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect 74900000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Premiums Earned Net 224300000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Premiums Earned Net 1707400000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Premiums Earned Net 45800000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Accidental Death Dismemberment;
0000005513-25-000059 20240331 Premiums Earned Net 222900000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Voluntary Benefits;
0000005513-25-000059 20250331 Premiums Earned Net 41900000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments; Product Or Service= Supplementaland Voluntary Insurance;
0000005513-25-000059 20250331 Premiums Earned Net 48200000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Accidental Death Dismemberment;
0000005513-25-000059 20250331 Premiums Earned Net 168700000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Individual Disability;
0000005513-25-000059 20241231 Property Plant And Equipment Net 487600000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20231231 Stockholders Equity -3308000000.0000 USD 0 us-gaap/2025 Equity Components= Accumulated Other Comprehensive Income;
0000005513-25-000059 20241231 Stockholders Equity -2523700000.0000 USD 0 us-gaap/2025 Equity Components= Accumulated Other Comprehensive Income;
0000005513-25-000059 20241231 Stockholders Equity 19500000.0000 USD 0 us-gaap/2025 Equity Components= Common Stock;
0000005513-25-000059 20241231 Stockholders Equity -938300000.0000 USD 0 us-gaap/2025 Equity Components= Treasury Stock Common;
0000005513-25-000059 20240331 Stock Issued During Period Value New Issues 100000.0000 USD 1 us-gaap/2025 Equity Components= Common Stock;
0000005513-25-000059 20241231 Unearned Premiums 384000000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Withdrawal From Contract Holders Funds 23900000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Withdrawal From Contract Holders Funds 22700000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Accrued Investment Income Receivable 7000000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20250331 Accumulated Other Comprehensive Income Loss Net Of Tax -2178800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Assets 4964200000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Assets 5346200000.0000 USD 0 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Assets 14981600000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Available For Sale Debt Securities Amortized Cost Basis 5525000000.0000 USD 0 us-gaap/2025 Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20250331 Available For Sale Debt Securities Amortized Cost Basis 26249300000.0000 USD 0 us-gaap/2025 Financial Instrument= All Other Corporate Bonds;
0000005513-25-000059 20250331 Available For Sale Debt Securities Amortized Cost Basis 960700000.0000 USD 0 us-gaap/2025 Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20250331 Available For Sale Debt Securities Amortized Cost Basis 8000000.0000 USD 0 us-gaap/2025 Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 12156400000.0000 USD 0 us-gaap/2025 Debt Securities Availableforsale Unrealized Gain Loss Fair Value= Available For Sale Securities Unrealized Gain Position Fair Value;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 3928100000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Corporate Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 31304400000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 452600000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 71500000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Corporate Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 501800000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20240331 Current Income Tax Expense Benefit 87300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Debt Securities Available For Sale Allowance For Credit Loss 2800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20250331 Deferral Of Acquisition Costs 84700000.0000 USD 1 0000005513-25-000059 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 54000000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 2500000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 65200000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us;
0000005513-25-000059 20231231 Deferred Policy Acquisition Costs 63600000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Disability;
0000005513-25-000059 20241231 Deferred Policy Acquisition Costs 614300000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Voluntary Benefits;
0000005513-25-000059 20250331 Deferred Policy Acquisition Costs 59000000.0000 USD 0 us-gaap/2025 Business Segments= Unum International;
0000005513-25-000059 20250331 Deferred Policy Acquisition Costs 56600000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Life And A D D;
0000005513-25-000059 20250331 Deferred Policy Acquisition Costs 526800000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Individual Disability;
0000005513-25-000059 20231231 Financing Receivable Allowance For Credit Losses 3800000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above65 To75 Percent;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 1700000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above65 To75 Percent;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 4200000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Below Or Equal To65 Percent;
0000005513-25-000059 20250331 Gain Loss On Investments -175900000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments; Significant Transaction= Long Term Care And Individual Disability Reinsurance Transaction;
0000005513-25-000059 20250331 Gain Loss On Investments 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Gain Loss On Investments Member1;
0000005513-25-000059 20250331 Gain Loss On Investments 21500000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Fair Value Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Gain Loss On Investments Member1;
0000005513-25-000059 20250331 Goodwill 27700000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20250331 Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest 243600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Income Tax Expense Benefit 100500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Income Tax Expense Benefit -3400000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Net Unrealized Investment Gain Loss; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Increase Decrease In Deferred Policy Acquisition Costs 47200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Increase Decrease In Prepaid Reinsurance Premiums -10400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Increase Decrease In Prepaid Reinsurance Premiums -9600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Insurance Commissions 16600000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Insurance Commissions 22400000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Interest And Debt Expense 49500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Corporate Debt Securities;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 5287200000.0000 USD 0 us-gaap/2025 Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20240331 Benefits Losses And Expenses 2704600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Comprehensive Income Net Of Tax 763200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Debt Securities Available For Sale Allowance For Credit Loss 2800000.0000 USD 0 us-gaap/2025 Financial Instrument= All Other Corporate Bonds;
0000005513-25-000059 20241231 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20250331 Deferral Of Acquisition Costs 0.0000 USD 1 0000005513-25-000059 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 69800000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 3000000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Dentaland Vision;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 14400000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Disability;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 6900000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Life And A D D;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 29400000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Voluntary Benefits;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 126200000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 15400000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Individual Disability;
0000005513-25-000059 20231231 Deferred Policy Acquisition Costs 46900000.0000 USD 0 us-gaap/2025 Business Segments= Unum International;
0000005513-25-000059 20240331 Deferred Policy Acquisition Costs 1460700000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20240331 Deferred Policy Acquisition Costs 2754700000.0000 USD 0 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Deferred Policy Acquisition Costs 53000000.0000 USD 0 us-gaap/2025 Business Segments= Unum International;
0000005513-25-000059 20241231 Deferred Policy Acquisition Costs 2842800000.0000 USD 0 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferred Policy Acquisition Costs 2893200000.0000 USD 0 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20231231 Financing Receivable Allowance For Credit Losses 1400000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above85 Percent;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 16100000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 14600000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Five Or More Years Before Last Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 1000000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Four Years Before Last Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20240331 Additions To Contract Holders Funds 34500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Assets 33235600000.0000 USD 0 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Assets 5056900000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Available For Sale Debt Securities Amortized Cost Basis 980100000.0000 USD 0 us-gaap/2025 Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20250331 Available For Sale Debt Securities Amortized Cost Basis 37860200000.0000 USD 0 us-gaap/2025 Financial Instrument= Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 35629900000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 3291400000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 5292900000.0000 USD 0 us-gaap/2025 Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 3291400000.0000 USD 0 us-gaap/2025 Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 14540100000.0000 USD 0 us-gaap/2025 Debt Securities Availableforsale Unrealized Gain Loss Fair Value= Available For Sale Securities Unrealized Gain Position Fair Value;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 1453900000.0000 USD 0 us-gaap/2025 External Credit Rating By Grouping= External Credit Rating Non Investment Grade;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 78800000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 533700000.0000 USD 0 us-gaap/2025 Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 100000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated In Current Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 3100000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above75 To85 Percent;
0000005513-25-000059 20240331 Gain Loss On Investments 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Interest Rate Swap; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Gain Loss On Investments Member1;
0000005513-25-000059 20250331 Gain Loss On Investments -400000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Interest Rate Swap; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Gain Loss On Investments Member1;
0000005513-25-000059 20241231 Goodwill 27700000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20250331 Goodwill 42900000.0000 USD 0 us-gaap/2025 Business Segments= Unum International;
0000005513-25-000059 20250331 Goodwill 280000000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us;
0000005513-25-000059 20250331 Income Tax Expense Benefit 500000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Increase Decrease In Accrued Investment Income Receivable 76600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Increase Decrease In Insurance Liabilities -59600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Insurance Commissions 95200000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Interest And Debt Expense 52000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Liabilities 51245800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Liability For Future Policy Benefits 38624500000.0000 USD 0 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Liability For Future Policy Benefits 37030700000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Liability For Future Policy Benefits 1944100000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20241231 Loans Insurance Policy 3617200000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Long Term Debt Current 274600000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 2224500000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 87300000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Two Years Before Last Fiscal Year;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 193600000.0000 USD 0 us-gaap/2025 Geographical= West South Central;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 658200000.0000 USD 0 us-gaap/2025 Mortgage Loans On Real Estate Description Type Of Property= Apartment Building;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 2187700000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 94200000.0000 USD 0 us-gaap/2025 Geographical= East South Central;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 84300000.0000 USD 0 us-gaap/2025 Internal Credit Assessment= B B Credit Rating;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 1066300000.0000 USD 0 us-gaap/2025 Internal Credit Assessment= Credit Rating;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 47100000.0000 USD 0 us-gaap/2025 Loan To Value= Loan To Value Ratio Above85 Percent;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 1585800000.0000 USD 0 us-gaap/2025 Loan To Value= Loan To Value Ratio Below Or Equal To65 Percent;
0000005513-25-000059 20250331 Net Cash Provided By Used In Operating Activities 353600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Net Income Loss -3200000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Defined Benefit Plans Adjustment; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Interest Expense;
0000005513-25-000059 20250331 Liability For Future Policy Benefit Remeasurement Gain Loss 89300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Liability For Future Policy Benefits 25164700000.0000 USD 0 us-gaap/2025 Business Segments= Closed Block;
0000005513-25-000059 20250331 Liability For Future Policy Benefits 207800000.0000 USD 0 us-gaap/2025 Business Segments= Other Products;
0000005513-25-000059 20250331 Long Term Debt And Capital Lease Obligations 3467000000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 2224500000.0000 USD 0 us-gaap/2025 Fair Value By Measurement Frequency= Fair Value Measurements Nonrecurring;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 278700000.0000 USD 0 us-gaap/2025 Geographical= Mountain;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 532500000.0000 USD 0 us-gaap/2025 Geographical= South Atlantic;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 1639600000.0000 USD 0 us-gaap/2025 Loan To Value= Loan To Value Ratio Below Or Equal To65 Percent;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 42700000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated In Current Fiscal Year;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 45900000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated In Fiscal Year Before Latest Fiscal Year;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 927900000.0000 USD 0 us-gaap/2025 Internal Credit Assessment= B B B Credit Rating;
0000005513-25-000059 20240331 Net Income Loss 395200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Net Income Loss -12400000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Net Unrealized Investment Gain Loss; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Net Investment Income 42200000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Net Investment Income 2300000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Investment Income;
0000005513-25-000059 20250331 Oci Liability For Future Policy Benefit Gain Loss Before Reclassification Adjustment After Tax -166300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax 300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Comprehensive Income Loss Net Of Tax 45500000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent;
0000005513-25-000059 20240331 Other Cost And Expense Operating 291100000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Cost And Expense Operating -100000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Defined Benefit Plans Adjustment Net Prior Service Cost Credit; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Other Income 400000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Other Liabilities 2650100000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Other Long Term Investments 1435300000.0000 USD 0 us-gaap/2025 Consolidated Entities= Variable Interest Entity Not Primary Beneficiary; Financial Instrument= Equity Method Investments;
0000005513-25-000059 20250331 Other Long Term Investments 1562200000.0000 USD 0 us-gaap/2025 Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20240331 Other Noncash Income Expense -25100000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Policyholders Funds 1522800000.0000 USD 0 0000005513-25-000059
0000005513-25-000059 20240331 Payments To Acquire Property Plant And Equipment 28300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Policyholder Funds 5633700000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Premiums And Other Receivables Net 1459000000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Premiums Earned Net 231700000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Assets 61959300000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Available For Sale Debt Securities Amortized Cost Basis 912100000.0000 USD 0 us-gaap/2025 Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20241231 Available For Sale Debt Securities Amortized Cost Basis 3795600000.0000 USD 0 us-gaap/2025 Financial Instrument= U S States And Political Subdivisions;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 5118400000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 35629900000.0000 USD 0 us-gaap/2025 Financial Instrument= Debt Securities;
0000005513-25-000059 20241231 Available For Sale Securities Debt Securities 7600000.0000 USD 0 us-gaap/2025 Financial Instrument= Redeemable Preferred Stock;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 21211300000.0000 USD 0 us-gaap/2025 Debt Securities Availableforsale Unrealized Gain Loss Fair Value= Available For Sale Securities Unrealized Loss Position Fair Value;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 8063200000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level3; Fair Value By Measurement Frequency= Fair Value Measurements Recurring; Financial Instrument= U S Treasury And Government;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 24893900000.0000 USD 0 us-gaap/2025 Financial Instrument= All Other Corporate Bonds;
0000005513-25-000059 20250331 Available For Sale Securities Debt Securities 24893900000.0000 USD 0 us-gaap/2025 Financial Instrument= Corporate Debt Securities;
0000005513-25-000059 20241231 Cash 162800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents 279100000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents 237700000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Commitments And Contingencies USD 0 us-gaap/2025
0000005513-25-000059 20250331 Common Stock Shares Issued 195954270.0000 shares 0 us-gaap/2025
0000005513-25-000059 20250331 Common Stock Value 19500000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Premiums Earned Net 103500000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments; Product Or Service= Group Long Term Disability;
0000005513-25-000059 20240331 Premiums Earned Net 36400000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments; Product Or Service= Unum Poland;
0000005513-25-000059 20240331 Premiums Earned Net 442600000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Group Life;
0000005513-25-000059 20240331 Premiums Earned Net 2610300000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Premiums Earned Net 2702900000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Premiums Earned Net 457300000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Premiums Earned Net 119900000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments; Product Or Service= Life Insurance Segment;
0000005513-25-000059 20250331 Premiums Earned Net 278300000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Group Short Term Disability;
0000005513-25-000059 20241231 Premiums Receivable Allowance For Doubtful Accounts 26800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities 467000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Proceeds From Payments For Other Financing Activities -400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Proceeds From Sale And Maturity Of Other Investments 48500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Revenues 3200300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Revenues 3200300000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Stockholders Equity 1489600000.0000 USD 0 us-gaap/2025 Equity Components= Additional Paid In Capital;
0000005513-25-000059 20250331 Stockholders Equity -1221200000.0000 USD 0 us-gaap/2025 Equity Components= Treasury Stock Common;
0000005513-25-000059 20240331 Stock Issued During Period Value New Issues 400000.0000 USD 1 us-gaap/2025 Equity Components= Additional Paid In Capital;
0000005513-25-000059 20250331 Net Income Loss 2000000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Net Increase Decrease In Payables For Collateral On Investments 19600000.0000 USD 1 0000005513-25-000059
0000005513-25-000059 20240331 Net Investment Income 5800000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Interest Rate Swap; Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Net Investment Income 28500000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Net Investment Income 17400000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Interest Rate Swap; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Investment Income;
0000005513-25-000059 20250331 Other Comprehensive Income Loss Available For Sale Securities Tax 110200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Other Comprehensive Income Loss Net Gain On Derivatives Adjustment Net Of Tax -53300000.0000 USD 1 0000005513-25-000059
0000005513-25-000059 20240331 Other Comprehensive Income Loss Net Of Tax 368000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Other Comprehensive Income Loss Net Of Tax -441700000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Net Unrealized Investment Gain Loss;
0000005513-25-000059 20240331 Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax -800000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Other Income 60600000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Other Long Term Investments 79500000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20241231 Other Long Term Investments 1450600000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Measured At Net Asset Value Per Share; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20240331 Payments For Proceeds From Short Term Investments -25700000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Policyholder Funds 860800000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20240331 Premiums Earned Net 49800000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments; Product Or Service= Other Insurance Product Line;
0000005513-25-000059 20250331 Premiums Earned Net 218000000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20231231 Premiums Receivable Allowance For Doubtful Accounts 29500000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20231231 Stockholders Equity 11431500000.0000 USD 0 us-gaap/2025 Equity Components= Retained Earnings;
0000005513-25-000059 20240331 Stockholders Equity -2940000000.0000 USD 0 us-gaap/2025 Equity Components= Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Stockholders Equity 19500000.0000 USD 0 us-gaap/2025 Equity Components= Common Stock;
0000005513-25-000059 20241231 Stockholders Equity 12914000000.0000 USD 0 us-gaap/2025 Equity Components= Retained Earnings;
0000005513-25-000059 20250331 Stock Issued During Period Value New Issues 0.0000 USD 1 us-gaap/2025 Equity Components= Common Stock;
0000005513-25-000059 20250331 Taxes Payable Current And Noncurrent 302300000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Treasury Stock Value 1221200000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect 133100000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Common Stock Par Or Stated Value Per Share 0.1000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Common Stock Shares Authorized 725000000.0000 shares 0 us-gaap/2025
0000005513-25-000059 20241231 Common Stock Shares Issued 195460723.0000 shares 0 us-gaap/2025
0000005513-25-000059 20250331 Comprehensive Income Net Of Tax 534000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= Public Utility Bonds;
0000005513-25-000059 20250331 Debt Securities Available For Sale Allowance For Credit Loss 3800000.0000 USD 0 us-gaap/2025 Financial Instrument= All Other Corporate Bonds;
0000005513-25-000059 20250331 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= Asset Backed Securities;
0000005513-25-000059 20240331 Deferral Of Acquisition Costs 166900000.0000 USD 1 0000005513-25-000059
0000005513-25-000059 20240331 Deferral Of Acquisition Costs 0.0000 USD 1 0000005513-25-000059 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferral Of Acquisition Costs 4300000.0000 USD 1 0000005513-25-000059 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferral Of Acquisition Costs 83300000.0000 USD 1 0000005513-25-000059 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferred Income Tax Assets Net 314800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 29800000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Voluntary Benefits;
0000005513-25-000059 20231231 Deferred Policy Acquisition Costs 48900000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Life And A D D;
0000005513-25-000059 20250331 Deferred Policy Acquisition Costs 1280100000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us;
0000005513-25-000059 20250331 Deferred Policy Acquisition Costs 616700000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Voluntary Benefits;
0000005513-25-000059 20231231 Financing Receivable Allowance For Credit Losses 3800000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Below Or Equal To65 Percent;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 400000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated In Fiscal Year Before Latest Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20240331 Gain Loss On Investments -1200000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments; Significant Transaction= Unrelated To Significant Transaction;
0000005513-25-000059 20240331 Gain Loss On Investments 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Forward Contracts; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Gain Loss On Investments Member1;
0000005513-25-000059 20250331 Gain Loss On Investments -206800000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Goodwill 280000000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us;
0000005513-25-000059 20240331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Forward Contracts; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Interest Expense;
0000005513-25-000059 20250331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Liability For Future Policy Benefits 1950800000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20250331 Liability For Future Policy Benefits 24056900000.0000 USD 0 us-gaap/2025 Business Segments= Closed Block;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 66400000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated In Fiscal Year Before Latest Fiscal Year;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 329600000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Three Years Before Last Fiscal Year;
0000005513-25-000059 20231231 Debt Securities Available For Sale Allowance For Credit Loss 2200000.0000 USD 0 us-gaap/2025 Financial Instrument= All Other Corporate Bonds;
0000005513-25-000059 20250331 Debt Securities Available For Sale Allowance For Credit Loss 0.0000 USD 0 us-gaap/2025 Financial Instrument= Foreign Government Debt Securities;
0000005513-25-000059 20250331 Deferral Of Acquisition Costs 0.0000 USD 1 0000005513-25-000059 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferral Of Acquisition Costs 82600000.0000 USD 1 0000005513-25-000059 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Deferred Income Tax Expense Benefit -25900000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 54000000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Deferred Policy Acquisition Cost Amortization Expense 2400000.0000 USD 1 us-gaap/2025 Business Segments= Unum International;
0000005513-25-000059 20250331 Deferred Policy Acquisition Cost Amortization Expense 0.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20231231 Deferred Policy Acquisition Costs 1435400000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20231231 Deferred Policy Acquisition Costs 1232200000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us;
0000005513-25-000059 20231231 Deferred Policy Acquisition Costs 610600000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Voluntary Benefits;
0000005513-25-000059 20240331 Deferred Policy Acquisition Costs 52500000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Group Life And A D D;
0000005513-25-000059 20240331 Deferred Policy Acquisition Costs 503700000.0000 USD 0 us-gaap/2025 Business Segments= Unum Us; Product Or Service= Individual Disability;
0000005513-25-000059 20241231 Deferred Policy Acquisition Costs 1529200000.0000 USD 0 us-gaap/2025 Business Segments= Colonial Life;
0000005513-25-000059 20240331 Financing Receivable Allowance For Credit Losses 3600000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Below Or Equal To65 Percent;
0000005513-25-000059 20241231 Financing Receivable Allowance For Credit Losses 200000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated In Current Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 300000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Three Years Before Last Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 400000.0000 USD 0 us-gaap/2025 Financing Receivable Origination Period= Originated Two Years Before Last Fiscal Year; Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate;
0000005513-25-000059 20250331 Financing Receivable Allowance For Credit Losses 8000000.0000 USD 0 us-gaap/2025 Financing Receivable Recorded Investment By Class Of Financing Receivable= Commercial Real Estate; Loan To Value= Loan To Value Ratio Above85 Percent;
0000005513-25-000059 20250331 Gain Loss On Investments 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Forward Contracts; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Gain Loss On Investments Member1;
0000005513-25-000059 20240331 Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest 495700000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Income Tax Expense Benefit -900000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Defined Benefit Plans Adjustment; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Income Tax Expense Benefit -41700000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Net Unrealized Investment Gain Loss; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Insurance Commissions 0.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Insurance Commissions 19600000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Insurance Commissions 205600000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 52600000.0000 USD 0 us-gaap/2025 Geographical= New England;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 7100000.0000 USD 0 us-gaap/2025 Internal Credit Assessment= B Credit Rating;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 65000000.0000 USD 0 us-gaap/2025 Loan To Value= Loan To Value Ratio Above85 Percent;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 41300000.0000 USD 0 us-gaap/2025 Mortgage Loans On Real Estate Description Type Of Property= Other Property;
0000005513-25-000059 20240331 Net Cash Provided By Used In Investing Activities 17700000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Net Cash Provided By Used In Operating Activities 298300000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Net Income Loss 189100000.0000 USD 1 us-gaap/2025 Equity Components= Retained Earnings;
0000005513-25-000059 20240331 Net Investment Income 18000000.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Net Investment Income 26100000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Net Investment Income 513200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Net Investment Income 513200000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Net Investment Income 2200000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Interest Rate Swap; Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Other Comprehensive Income Loss Net Of Tax 800000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Defined Benefit Plans Adjustment;
0000005513-25-000059 20240331 Other Comprehensive Income Loss Net Of Tax 368000000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Other Comprehensive Income;
0000005513-25-000059 20250331 Other Comprehensive Income Loss Net Of Tax 422000000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Net Unrealized Investment Gain Loss;
0000005513-25-000059 20250331 Other Cost And Expense Operating 4100000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Defined Benefit Plans Adjustment Net Unamortized Gain Loss; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Other Income 77700000.0000 USD 1 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Other Long Term Investments 1450800000.0000 USD 0 us-gaap/2025 Consolidated Entities= Variable Interest Entity Not Primary Beneficiary;
0000005513-25-000059 20241231 Other Long Term Investments 0.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level1; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Other Long Term Investments 90500000.0000 USD 0 us-gaap/2025 Fair Value By Fair Value Hierarchy Level= Fair Value Inputs Level2; Fair Value By Measurement Frequency= Fair Value Measurements Recurring;
0000005513-25-000059 20250331 Other Noncash Income Expense 9000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20241231 Other Short Term Investments 2540300000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Payments For Repurchase Of Common Stock 200500000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20240331 Payments To Acquire Other Investments 59600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Policyholder Funds 4085900000.0000 USD 0 us-gaap/2025 Business Segments= Closed Block; Product Or Service= Other Insurance Product Line;
0000005513-25-000059 20240331 Premiums Earned Net 0.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Premiums Earned Net 263100000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Group Short Term Disability;
0000005513-25-000059 20250331 Premiums Earned Net 90300000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments; Product Or Service= Cancer And Critical Illness Colonial;
0000005513-25-000059 20250331 Premiums Earned Net 61600000.0000 USD 1 us-gaap/2025 Business Segments= Unum International; Consolidation Items= Operating Segments; Product Or Service= Group Life;
0000005513-25-000059 20250331 Premiums Earned Net 1780900000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Fair Value Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Interest Expense;
0000005513-25-000059 20250331 Interest And Debt Expense 0.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Forward Contracts; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Interest Expense;
0000005513-25-000059 20241231 Investments 45706300000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Loans Insurance Policy 3617200000.0000 USD 0 us-gaap/2025 Fair Value By Measurement Frequency= Fair Value Measurements Nonrecurring;
0000005513-25-000059 20241231 Long Term Debt And Capital Lease Obligations 3465200000.0000 USD 0 us-gaap/2025 Fair Value By Measurement Frequency= Fair Value Measurements Nonrecurring;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 95100000.0000 USD 0 us-gaap/2025 Geographical= East South Central;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 85000000.0000 USD 0 us-gaap/2025 Internal Credit Assessment= B B Credit Rating;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 1099100000.0000 USD 0 us-gaap/2025 Internal Credit Assessment= Credit Rating;
0000005513-25-000059 20241231 Mortgage Loans On Real Estate Commercial And Consumer Net 690400000.0000 USD 0 us-gaap/2025 Mortgage Loans On Real Estate Description Type Of Property= Industrial Property;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 165400000.0000 USD 0 us-gaap/2025 Geographical= Middle Atlantic;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 670700000.0000 USD 0 us-gaap/2025 Mortgage Loans On Real Estate Description Type Of Property= Industrial Property;
0000005513-25-000059 20250331 Mortgage Loans On Real Estate Commercial And Consumer Net 333300000.0000 USD 0 us-gaap/2025 Mortgage Loans On Real Estate Description Type Of Property= Office Building;
0000005513-25-000059 20240331 Net Income Loss 395200000.0000 USD 1 us-gaap/2025 Equity Components= Retained Earnings;
0000005513-25-000059 20250331 Net Income Loss 189100000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Net Increase Decrease In Payables For Collateral On Investments 76500000.0000 USD 1 0000005513-25-000059
0000005513-25-000059 20240331 Net Investment Income 2200000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Investment Income;
0000005513-25-000059 20240331 Net Investment Income 4200000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Derivative Instruments Gain Loss By Hedging Relationship= Fair Value Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Investment Income;
0000005513-25-000059 20240331 Net Investment Income -100000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Foreign Exchange Contract; Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent; Reclassification Out Of Accumulated Other Comprehensive Income= Reclassification Out Of Accumulated Other Comprehensive Income;
0000005513-25-000059 20240331 Net Investment Income 47600000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Interest Rate Swap; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Investment Income;
0000005513-25-000059 20250331 Net Investment Income 269700000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Net Investment Income 12300000.0000 USD 1 us-gaap/2025 Derivative Instrument Risk= Forward Contracts; Derivative Instruments Gain Loss By Hedging Relationship= Cash Flow Hedging; Hedging Designation= Designated As Hedging Instrument; Income Statement Location= Investment Income;
0000005513-25-000059 20241231 Other Assets 1635800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax 422000000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Comprehensive Income Loss Net Gain On Derivatives Adjustment Net Of Tax 45500000.0000 USD 1 0000005513-25-000059
0000005513-25-000059 20240331 Other Comprehensive Income Loss Net Of Tax -53300000.0000 USD 1 us-gaap/2025 Equity Components= Accumulated Gain Loss Net Cash Flow Hedge Parent;
0000005513-25-000059 20250331 Other Comprehensive Income Loss Net Of Tax -166300000.0000 USD 1 us-gaap/2025 Equity Components= Aoci Liability For Future Policy Benefit Parent;
0000005513-25-000059 20250331 Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax 200000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Cost And Expense Operating 318600000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Other Income 0.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Other Income 71900000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments;
0000005513-25-000059 20241231 Other Long Term Investments 1694400000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Other Long Term Investments 200000.0000 USD 0 us-gaap/2025 Consolidated Entities= Variable Interest Entity Not Primary Beneficiary; Financial Instrument= Tax Credit Partnership;
0000005513-25-000059 20250331 Other Long Term Investments 1689800000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Other Long Term Investments 1435500000.0000 USD 0 us-gaap/2025 Consolidated Entities= Variable Interest Entity Not Primary Beneficiary;
0000005513-25-000059 20240331 Policyholder Funds 5639000000.0000 USD 0 us-gaap/2025 Consolidation Items= Operating Segments;
0000005513-25-000059 20240331 Premiums Earned Net 243200000.0000 USD 1 us-gaap/2025 Business Segments= Colonial Life; Consolidation Items= Operating Segments; Product Or Service= Accident And Health Insurance Segment;
0000005513-25-000059 20250331 Premiums Earned Net 176200000.0000 USD 1 us-gaap/2025 Business Segments= Closed Block; Consolidation Items= Operating Segments; Product Or Service= Long Term Care;
0000005513-25-000059 20250331 Premiums Earned Net 0.0000 USD 1 us-gaap/2025 Business Segments= Corporate And Other; Consolidation Items= Operating Segments;
0000005513-25-000059 20250331 Premiums Earned Net 80900000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Dentaland Vision;
0000005513-25-000059 20250331 Premiums Earned Net 466200000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Group Life;
0000005513-25-000059 20250331 Premiums Earned Net 234100000.0000 USD 1 us-gaap/2025 Business Segments= Unum Us; Consolidation Items= Operating Segments; Product Or Service= Voluntary Benefits;
0000005513-25-000059 20250331 Premiums Receivable Allowance For Doubtful Accounts 27000000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Reinsurance Recoverables 8296400000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Reinsurance Recoverables 8121900000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20241231 Reinsurance Recoverables Allowance 1500000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20240331 Stockholders Equity 1548200000.0000 USD 0 us-gaap/2025 Equity Components= Additional Paid In Capital;
0000005513-25-000059 20241231 Stockholders Equity 10961100000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Stock Issued During Period Value New Issues -1200000.0000 USD 1 us-gaap/2025 Equity Components= Additional Paid In Capital;
0000005513-25-000059 20241231 Treasury Stock Value Acquired Cost Method 706800000.0000 USD 2 us-gaap/2025 Share Repurchase Program= Repurchase Program Authorized In July2024;
0000005513-25-000059 20250331 Proceeds From Payments For Other Financing Activities 0.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Proceeds From Sale And Maturity Of Other Investments 131800000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Proceeds From Sale Of Available For Sale Securities Debt 255400000.0000 USD 1 us-gaap/2025
0000005513-25-000059 20250331 Property Plant And Equipment Net 496300000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20250331 Reinsurance Recoverables Allowance 1500000.0000 USD 0 us-gaap/2025
0000005513-25-000059 20231231 Stockholders Equity 1547800000.0000 USD 0 us-gaap/2025 Equity Components= Additional Paid In Capital;
0000005513-25-000059 20241231 Treasury Stock Common Shares 16871752.0000 shares 0 us-gaap/2025
0000005513-25-000059 20240731 Treasury Stock Value Acquired Cost Method 464200000.0000 USD 2 us-gaap/2025 Share Repurchase Program= Repurchase Program Authorized In October2023;
0000005513-25-000059 20250331 Unearned Premiums 475600000.0000 USD 0 us-gaap/2025

Description
Field Name Field Description
adsh Accession Number. The 20-character string formed from the 18-digit number assigned by the SEC to each EDGAR submission.
tag The unique identifier (name) for a tag in a specific taxonomy release.
version For a standard tag, an identifier for the taxonomy; otherwise the accession number where the tag was defined.
ddate The end date for the data value, rounded to the nearest month end.
qtrs The count of the number of quarters represented by the data value, rounded to the nearest whole number. “0” indicates it is a point-in-time value.
uom The unit of measure for the value.
segments Tags used to represent axis and member reporting.
coreg If specified, indicates a specific co-registrant, the parent company, or other entity (e.g., guarantor). NULL indicates the consolidated entity.
value The value. This is not scaled, it is as found in the Interactive Data file, but is limited to four digits to the right of the decimal point.
footnote The text of any superscripted footnotes on the value, as shown on the statement page, truncated to 512 characters, or if there is no footnote, then this field will be blank.

Tags

tag version custom abstract datatype iord crdr tlabel doc
Loans Insurance Policy us-gaap/2025 0 0 monetary I D Loans, Gross, Insurance Policy Amount before allowance of loans made to policy and contract holders using their life insurance contracts' cash value or separate accounts as collateral. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums over and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.
Payments To Acquire Other Investments us-gaap/2025 0 0 monetary D C Payments to Acquire Other Investments Amount of cash outflow to acquire investments classified as other.
Deferred Income Tax Assets Net us-gaap/2025 0 0 monetary I D Deferred Income Tax Assets, Net Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.
Net Cash Provided By Used In Investing Activities us-gaap/2025 0 0 monetary D D Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Amount of cash inflow (outflow) from investing activity, including, but not limited to, discontinued operation. Investing activity includes, but is not limited to, making and collecting loan, acquiring and disposing of debt and equity instruments, property, plant, and equipment, and other productive assets.
Common Stock Shares Authorized us-gaap/2025 0 0 shares I Common Stock, Shares Authorized The maximum number of common shares permitted to be issued by an entity's charter and bylaws.
Payments Of Dividends us-gaap/2025 0 0 monetary D C Payments of Dividends Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.
Earnings Per Share Diluted us-gaap/2025 0 0 perShare D Earnings Per Share, Diluted The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.
Increase Decrease In Accrued Investment Income Receivable us-gaap/2025 0 0 monetary D C Increase (Decrease) in Accrued Investment Income Receivable The increase (decrease) during the reporting period in investment income that has been earned but not yet received in cash.
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax us-gaap/2025 0 0 monetary D D Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.
Net Increase Decrease In Payables For Collateral On Investments 0000005513-25-000059 1 0 monetary D D Net Increase (Decrease) in Payables for Collateral on Investments Net Increase (Decrease) in Payables for Collateral on Investments
Proceeds From Issuance Of Common Stock us-gaap/2025 0 0 monetary D D Proceeds from Issuance of Common Stock The cash inflow from the additional capital contribution to the entity.
Property Plant And Equipment Net us-gaap/2025 0 0 monetary I D Property, Plant and Equipment, Net Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect us-gaap/2025 0 0 monetary D D Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Amount of increase (decrease) in cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; including effect from exchange rate change and including, but not limited to, discontinued operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.
Benefits Losses And Expenses us-gaap/2025 0 0 monetary D D Benefits, Losses and Expenses The total amount of expense recognized during the period for future policy benefits, claims and claims adjustment costs, and for selling, general and administrative costs.
Commitments And Contingencies us-gaap/2025 0 0 monetary I C Commitments and Contingencies Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.
Other Comprehensive Income Loss Available For Sale Securities Tax us-gaap/2025 0 0 monetary D D OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax Amount, after adjustment, of tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax us-gaap/2025 0 0 monetary D C Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan.
Other Income us-gaap/2025 0 0 monetary D C Other Income Amount of revenue and income classified as other.
Other Comprehensive Income Loss Net Gain On Derivatives Adjustment Tax 0000005513-25-000059 1 0 monetary D D Other Comprehensive Income (Loss), Net Gain on Derivatives, Adjustment, Tax Amount of tax expense (benefit), after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of hedges.
Other Policyholders Funds 0000005513-25-000059 1 0 monetary I C Other Policyholders Funds Other Policyholders Funds
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest us-gaap/2025 0 0 monetary D C Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.
Common Stock Shares Issued us-gaap/2025 0 0 shares I Common Stock, Shares, Issued Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.
Increase Decrease In Insurance Liabilities us-gaap/2025 0 0 monetary D D Increase (Decrease) in Insurance Liabilities The increase (decrease) in insurance liability balances during the period.
Other Long Term Investments us-gaap/2025 0 0 monetary I D Other Long-Term Investments Amount of long-term investments classified as other.
Other Cost And Expense Operating us-gaap/2025 0 0 monetary D D Other Cost and Expense, Operating The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.
Comprehensive Income Net Of Tax us-gaap/2025 0 0 monetary D C Comprehensive Income (Loss), Net of Tax, Attributable to Parent Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.
Accrued Investment Income Receivable us-gaap/2025 0 0 monetary I D Accrued Investment Income Receivable Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.
Available For Sale Securities Debt Securities us-gaap/2025 0 0 monetary I D Debt Securities, Available-for-Sale Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).
Deferred Income Tax Liabilities Net us-gaap/2025 0 0 monetary I C Deferred Income Tax Liabilities, Net Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.
Increase Decrease In Other Accrued Liabilities us-gaap/2025 0 0 monetary D D Increase (Decrease) in Other Accrued Liabilities The increase (decrease) during the reporting period in other expenses incurred but not yet paid.
Increase Decrease In Receivables us-gaap/2025 0 0 monetary D C Increase (Decrease) in Receivables The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.
Insurance Commissions us-gaap/2025 0 0 monetary D D Insurance Commissions The expense incurred by an insurance company to persons or entities for generating or placing insurance or investment contracts with the company, usually determined as a percentage of policy or contract premiums. Excludes advances or draws to be applied against commissions earned.
Long Term Debt Current us-gaap/2025 0 0 monetary I C Long-Term Debt, Current Maturities Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation.
Payments For Repurchase Of Common Stock us-gaap/2025 0 0 monetary D C Payments for Repurchase of Common Stock The cash outflow to reacquire common stock during the period.
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities us-gaap/2025 0 0 monetary D D Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).
Debt Securities Available For Sale Allowance For Credit Loss us-gaap/2025 0 0 monetary I C Debt Securities, Available-for-Sale, Allowance for Credit Loss Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).
Increase Decrease In Accrued Income Taxes Payable us-gaap/2025 0 0 monetary D D Increase (Decrease) in Income Taxes Payable The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.
Labor And Related Expense us-gaap/2025 0 0 monetary D D Labor and Related Expense Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.
Net Investment Income us-gaap/2025 0 0 monetary D C Net Investment Income Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.
Other Assets us-gaap/2025 0 0 monetary I D Other Assets Amount of assets classified as other.
Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax us-gaap/2025 0 0 monetary D D Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.
Payments To Acquire Available For Sale Securities Debt us-gaap/2025 0 0 monetary D C Payments to Acquire Debt Securities, Available-for-Sale Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).
Premiums Earned Net us-gaap/2025 0 0 monetary D C Premiums Earned, Net Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.
Earnings Per Share Basic us-gaap/2025 0 0 perShare D Earnings Per Share, Basic The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.
Payments To Acquire Property Plant And Equipment us-gaap/2025 0 0 monetary D C Payments to Acquire Property, Plant, and Equipment The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.
Common Stock Dividends Per Share Cash Paid us-gaap/2025 0 0 perShare D Common Stock, Dividends, Per Share, Cash Paid Aggregate dividends paid during the period for each share of common stock outstanding.
Policyholder Funds us-gaap/2025 0 0 monetary I C Policyholder Account Balance Amount due to policyholder. Includes, but is not limited to, unpaid policy dividend, retrospective refund, and undistributed earnings on participating business. Excludes future policy benefit and claim expense.
Deferral Of Acquisition Costs 0000005513-25-000059 1 0 monetary D C Deferral of Acquisition Costs Deferral of Acquisition Costs
Net Cash Provided By Used In Financing Activities us-gaap/2025 0 0 monetary D D Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Amount of cash inflow (outflow) from financing activity, including, but not limited to, discontinued operation. Financing activity includes, but is not limited to, obtaining resource from owner and providing return on, and return of, their investment; borrowing money and repaying amount borrowed, or settling obligation; and obtaining and paying for other resource obtained from creditor on long-term credit.
Deferred Income Tax Expense Benefit us-gaap/2025 0 0 monetary D D Deferred Income Tax Expense (Benefit) Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.
Deferred Policy Acquisition Cost Amortization Expense us-gaap/2025 0 0 monetary D D Deferred Policy Acquisition Costs, Amortization Expense Amount of amortization expense (reversal of expense) for deferred policy acquisition costs.
Deferred Policy Acquisition Costs us-gaap/2025 0 0 monetary I D Deferred Policy Acquisition Cost Amount of deferred policy acquisition cost capitalized on contract remaining in force.
Investments us-gaap/2025 0 0 monetary I D Investments Sum of the carrying amounts as of the balance sheet date of all investments.
Mortgage Loans On Real Estate Commercial And Consumer Net us-gaap/2025 0 0 monetary I D Mortgage Loans on Real Estate, Commercial and Consumer, Net The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.
Other Noncash Income Expense us-gaap/2025 0 0 monetary D C Other Noncash Income (Expense) Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.
Unearned Premiums us-gaap/2025 0 0 monetary I C Unearned Premiums Carrying amount of premiums written on insurance contracts that have not been earned as of the balance sheet date.
Assets us-gaap/2025 0 0 monetary I D Assets Amount of asset recognized for present right to economic benefit.
Liabilities And Stockholders Equity us-gaap/2025 0 0 monetary I C Liabilities and Equity Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.
Net Income Loss us-gaap/2025 0 0 monetary D C Net Income (Loss) Attributable to Parent The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
Stockholders Equity us-gaap/2025 0 0 monetary I C Equity, Attributable to Parent Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.
Common Stock Par Or Stated Value Per Share us-gaap/2025 0 0 perShare I Common Stock, Par or Stated Value Per Share Face amount or stated value per share of common stock.
Accumulated Other Comprehensive Income Loss Net Of Tax us-gaap/2025 0 0 monetary I C Accumulated Other Comprehensive Income (Loss), Net of Tax Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source.
Goodwill us-gaap/2025 0 0 monetary I D Goodwill Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.
Interest And Debt Expense us-gaap/2025 0 0 monetary D D Interest and Debt Expense Interest and debt related expenses associated with nonoperating financing activities of the entity.
Long Term Debt And Capital Lease Obligations us-gaap/2025 0 0 monetary I C Long-Term Debt and Lease Obligation Amount of long-term debt and lease obligation, classified as noncurrent.
Other Comprehensive Income Loss Net Of Tax us-gaap/2025 0 0 monetary D C Other Comprehensive Income (Loss), Net of Tax Amount after tax and reclassification adjustments of other comprehensive income (loss).
Premiums And Other Receivables Net us-gaap/2025 0 0 monetary I D Premiums and Other Receivables, Net Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of all premiums and other types of receivables due from other persons or entities.
Premiums Receivable Allowance For Doubtful Accounts us-gaap/2025 0 0 monetary I C Premium Receivable, Allowance for Credit Loss The carrying value as of the balance sheet date of the estimated valuation allowance to reduce gross premiums receivable to net realizable value.
Taxes Payable Current And Noncurrent us-gaap/2025 0 0 monetary I C Taxes Payable Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes.
Income Tax Expense Benefit us-gaap/2025 0 0 monetary D D Income Tax Expense (Benefit) Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
Revenues us-gaap/2025 0 0 monetary D C Revenues Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).
Liabilities us-gaap/2025 0 0 monetary I C Liabilities Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others.
Cash us-gaap/2025 0 0 monetary I D Cash Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.
Gain Loss On Investments us-gaap/2025 0 0 monetary D C Gain (Loss) on Investments Amount of realized and unrealized gain (loss) on investment.
Other Short Term Investments us-gaap/2025 0 0 monetary I D Other Short-Term Investments Amount of short-term investments classified as other.
Payments For Proceeds From Short Term Investments us-gaap/2025 0 0 monetary D C Payments for (Proceeds from) Short-Term Investments The net amount paid (received) by the reporting entity through acquisition or sale and maturities of short-term investments with an original maturity that is three months or less which qualify for treatment as an investing activity based on management's intention and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term.
Proceeds From Sale And Maturity Of Other Investments us-gaap/2025 0 0 monetary D D Proceeds from Sale and Maturity of Other Investments The cash inflow associated with the sale and maturity (principal being due) of other investments, prepayment and call (request of early payment) of other investments not otherwise defined in the taxonomy.
Proceeds From Sale Of Available For Sale Securities Debt us-gaap/2025 0 0 monetary D D Proceeds from Sale of Debt Securities, Available-for-Sale Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).
Treasury Stock Common Shares us-gaap/2025 0 0 shares I Treasury Stock, Common, Shares Number of previously issued common shares repurchased by the issuing entity and held in treasury.
Treasury Stock Value Acquired Cost Method us-gaap/2025 0 0 monetary D D Treasury Stock, Value, Acquired, Cost Method Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.
Withdrawal From Contract Holders Funds us-gaap/2025 0 0 monetary D C Withdrawal from Contract Holders Funds The cash outflow for a segregated fund account during the period.
Additional Paid In Capital Common Stock us-gaap/2025 0 0 monetary I C Additional Paid in Capital, Common Stock Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents us-gaap/2025 0 0 monetary I D Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; attributable to continuing operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.
Treasury Stock Value us-gaap/2025 0 0 monetary I D Treasury Stock, Value The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.
Current Income Tax Expense Benefit us-gaap/2025 0 0 monetary D D Current Income Tax Expense (Benefit) Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.
Depreciation Amortization And Accretion Net us-gaap/2025 0 0 monetary D D Depreciation, Amortization and Accretion, Net The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.
Financing Receivable Allowance For Credit Losses us-gaap/2025 0 0 monetary I C Financing Receivable, Allowance for Credit Loss Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.
Increase Decrease In Deferred Policy Acquisition Costs us-gaap/2025 0 0 monetary D C Increase (Decrease) in Deferred Policy Acquisition Costs The increase (decrease) during the reporting period in the balance sheet value of capitalized sales costs that are associated with acquiring a new insurance customers.
Increase Decrease In Prepaid Reinsurance Premiums us-gaap/2025 0 0 monetary D C Increase (Decrease) in Prepaid Reinsurance Premiums The change in prepaid reinsurance premiums recorded on the balance sheet, which is needed to adjust net income to arrive at net cash flows provided by or used in operations.
Liability For Future Policy Benefit Remeasurement Gain Loss us-gaap/2025 0 0 monetary D C Liability for Future Policy Benefit, Remeasurement Gain (Loss) Amount of remeasurement gain (loss) on liability for future policy benefit from application of revised benefit ratio as of contract issue. Includes, but is not limited to, remeasurement gain (loss) for annuitization insurance benefit, death and other insurance benefits, and traditional and limited-payment contracts.
Liability For Future Policy Benefits us-gaap/2025 0 0 monetary I C Liability for Future Policy Benefit, before Reinsurance Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract.
Oci Liability For Future Policy Benefit Gain Loss Before Reclassification Adjustment After Tax us-gaap/2025 0 0 monetary D C OCI, Liability for Future Policy Benefit, Gain (Loss), before Reclassification Adjustment, after Tax Amount, after tax and before reclassification adjustment, of unrealized gain (loss) from (increase) decrease in liability for future policy benefit from change in discount rate.
Oci Liability For Future Policy Benefit Gain Loss Before Reclassification Adjustment Tax us-gaap/2025 0 0 monetary D D OCI, Liability for Future Policy Benefit, Gain (Loss), before Reclassification Adjustment, Tax Amount, before reclassification adjustment, of tax expense (benefit) for unrealized gain (loss) from (increase) decrease in liability for future policy benefit from change in discount rate.
Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax us-gaap/2025 0 0 monetary D C OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.
Policyholder Benefits And Claims Incurred Net us-gaap/2025 0 0 monetary D D Policyholder Benefits and Claims Incurred, Net Amount, after effects of policies assumed or ceded, of expense related to the provision for policy benefits and costs incurred.
Proceeds From Payments For Other Financing Activities us-gaap/2025 0 0 monetary D D Proceeds from (Payment for) Other Financing Activity Amount of cash inflow (outflow) from financing activity, classified as other.
Net Cash Provided By Used In Operating Activities us-gaap/2025 0 0 monetary D Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity.
Retained Earnings Accumulated Deficit us-gaap/2025 0 0 monetary I C Retained Earnings (Accumulated Deficit) Amount of accumulated undistributed earnings (deficit).
Common Stock Value us-gaap/2025 0 0 monetary I C Common Stock, Value, Issued Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.
Stock Issued During Period Value New Issues us-gaap/2025 0 0 monetary D C Stock Issued During Period, Value, New Issues Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.
Additions To Contract Holders Funds us-gaap/2025 0 0 monetary D D Additions to Contract Holders Funds The cash inflow from a segregated fund account during the period.
Available For Sale Debt Securities Amortized Cost Basis us-gaap/2025 0 0 monetary I D Debt Securities, Available-for-Sale, Amortized Cost Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).
Dividends Cash us-gaap/2025 0 0 monetary D D Dividends, Cash Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.
Reinsurance Recoverables Allowance us-gaap/2025 0 0 monetary I C Reinsurance Recoverable, Allowance for Credit Loss Amount of allowance for credit loss on reinsurance recoverable.
Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax us-gaap/2025 0 0 monetary D C Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.
Other Liabilities us-gaap/2025 0 0 monetary I C Other Liabilities Amount of liabilities classified as other.
Reinsurance Recoverables us-gaap/2025 0 0 monetary I D Reinsurance Recoverables, Including Reinsurance Premium Paid Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.
Other Comprehensive Income Loss Net Gain On Derivatives Adjustment Net Of Tax 0000005513-25-000059 1 0 monetary D C Other Comprehensive Income (Loss), Net Gain on Derivatives, Adjustment, net of Tax Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of hedges.

Description
Field Name Field Description
tag The unique identifier (name) for a tag in a specific taxonomy release.
version For a standard tag, an identifier for the taxonomy; otherwise the accession number where the tag was defined.
custom 1 if tag is custom (version=adsh), 0 if it is standard. Note: This flag is technically redundant with the version and adsh columns.
abstract 1 if the tag is not used to represent a numeric fact.
datatype If abstract=1, then NULL, otherwise the data type (e.g., monetary) for the tag.
iord If abstract=1, then NULL; otherwise, “I” if the value is a point-in time, or “D” if the value is a duration.
crdr If datatype = monetary, then the tag’s natural accounting balance (debit or credit); if not defined, then NULL.
tlabel If a standard tag, then the label text provided by the taxonomy, otherwise the text provided by the filer. A tag which had neither would have a NULL value here.
doc The detailed definition for the tag. If a standard tag, then the text provided by the taxonomy, otherwise the text assigned by the filer. Some tags have neither, and this field is NULL.

Presentation of Statements

adsh report line stmt inpth rfile tag version plabel negating
0000005513-25-000059 2 3 BS 0 H Available For Sale Securities Debt Securities us-gaap/2025 Debt Securities, Available-for-Sale 0
0000005513-25-000059 2 4 BS 0 H Mortgage Loans On Real Estate Commercial And Consumer Net us-gaap/2025 Mortgage Loans (net of allowance for credit losses of $16.6; $16.1) 0
0000005513-25-000059 2 5 BS 0 H Loans Insurance Policy us-gaap/2025 Policy Loans 0
0000005513-25-000059 2 6 BS 0 H Other Long Term Investments us-gaap/2025 Other Long-term Investments 0
0000005513-25-000059 2 7 BS 0 H Other Short Term Investments us-gaap/2025 Short-term Investments 0
0000005513-25-000059 2 8 BS 0 H Investments us-gaap/2025 Total Investments 0
0000005513-25-000059 2 10 BS 0 H Cash us-gaap/2025 Cash and Bank Deposits 0
0000005513-25-000059 2 11 BS 0 H Premiums And Other Receivables Net us-gaap/2025 Accounts and Premiums Receivable (net of allowance for credit losses of $27.0; $26.8) 0
0000005513-25-000059 2 12 BS 0 H Reinsurance Recoverables us-gaap/2025 Reinsurance Recoverable (net of allowance for credit losses of $1.5; $1.5) 0
0000005513-25-000059 2 13 BS 0 H Accrued Investment Income Receivable us-gaap/2025 Accrued Investment Income 0
0000005513-25-000059 2 14 BS 0 H Deferred Policy Acquisition Costs us-gaap/2025 Deferred Acquisition Costs 0
0000005513-25-000059 2 15 BS 0 H Goodwill us-gaap/2025 Goodwill 0
0000005513-25-000059 2 16 BS 0 H Property Plant And Equipment Net us-gaap/2025 Property and Equipment 0
0000005513-25-000059 2 17 BS 0 H Deferred Income Tax Assets Net us-gaap/2025 Deferred Income Tax Assets, Net 0
0000005513-25-000059 2 18 BS 0 H Other Assets us-gaap/2025 Other Assets 0
0000005513-25-000059 2 19 BS 0 H Assets us-gaap/2025 Total Assets 0
0000005513-25-000059 2 22 BS 0 H Liability For Future Policy Benefits us-gaap/2025 Future Policy Benefits 0
0000005513-25-000059 2 23 BS 0 H Policyholder Funds us-gaap/2025 Policyholders' Account Balances 0
0000005513-25-000059 2 24 BS 0 H Unearned Premiums us-gaap/2025 Unearned Premiums 0
0000005513-25-000059 2 25 BS 0 H Other Policyholders Funds 0000005513-25-000059 Other Policyholders Funds 0
0000005513-25-000059 2 26 BS 0 H Taxes Payable Current And Noncurrent us-gaap/2025 Income Tax Payable 0
0000005513-25-000059 2 27 BS 0 H Deferred Income Tax Liabilities Net us-gaap/2025 Deferred Income Tax 0
0000005513-25-000059 2 28 BS 0 H Long Term Debt Current us-gaap/2025 Short-term debt 0
0000005513-25-000059 2 29 BS 0 H Long Term Debt And Capital Lease Obligations us-gaap/2025 Long-term Debt 0
0000005513-25-000059 2 30 BS 0 H Other Liabilities us-gaap/2025 Other Liabilities 0
0000005513-25-000059 2 31 BS 0 H Liabilities us-gaap/2025 Total Liabilities 0
0000005513-25-000059 2 32 BS 0 H Commitments And Contingencies us-gaap/2025 Commitments and Contingent Liabilities - Note 13 0
0000005513-25-000059 2 34 BS 0 H Common Stock Value us-gaap/2025 Common Stock, $0.10 par; authorized: 725,000,000 shares; issued: 195,954,270 and 195,460,723 shares 0
0000005513-25-000059 2 35 BS 0 H Additional Paid In Capital Common Stock us-gaap/2025 Additional Paid-in Capital 0
0000005513-25-000059 2 36 BS 0 H Accumulated Other Comprehensive Income Loss Net Of Tax us-gaap/2025 Accumulated Other Comprehensive Loss 0
0000005513-25-000059 2 37 BS 0 H Retained Earnings Accumulated Deficit us-gaap/2025 Retained Earnings 0
0000005513-25-000059 2 38 BS 0 H Treasury Stock Value us-gaap/2025 Treasury Stock - at cost: 20,127,386 and 16,871,752 shares 1
0000005513-25-000059 2 39 BS 0 H Stockholders Equity us-gaap/2025 Total Stockholders' Equity 0
0000005513-25-000059 2 40 BS 0 H Liabilities And Stockholders Equity us-gaap/2025 Total Liabilities and Stockholders' Equity 0
0000005513-25-000059 3 3 BS 1 H Available For Sale Debt Securities Amortized Cost Basis us-gaap/2025 Amortized Cost of Fixed Maturity Securities 0
0000005513-25-000059 3 4 BS 1 H Debt Securities Available For Sale Allowance For Credit Loss us-gaap/2025 Debt Securities, Available-for-sale, Allowance for credit losses for Fixed Maturity Securities 0
0000005513-25-000059 3 5 BS 1 H Financing Receivable Allowance For Credit Losses us-gaap/2025 Financing Receivable, Allowance for Credit Losses, Mortgage Loans 0
0000005513-25-000059 3 7 BS 1 H Premiums Receivable Allowance For Doubtful Accounts us-gaap/2025 Premium Receivable, Allowance for Credit Loss 0
0000005513-25-000059 3 8 BS 1 H Reinsurance Recoverables Allowance us-gaap/2025 Reinsurance Recoverable, Allowance for Credit Loss 0
0000005513-25-000059 3 10 BS 1 H Common Stock Par Or Stated Value Per Share us-gaap/2025 Common Stock, Par Value (in dollars per share) 0
0000005513-25-000059 3 11 BS 1 H Common Stock Shares Authorized us-gaap/2025 Common Stock, Shares Authorized 0
0000005513-25-000059 3 12 BS 1 H Common Stock Shares Issued us-gaap/2025 Common Stock, Shares Issued 0
0000005513-25-000059 3 13 BS 1 H Treasury Stock Common Shares us-gaap/2025 Treasury Stock, Shares at Cost 0
0000005513-25-000059 4 2 IS 0 H Premiums Earned Net us-gaap/2025 Premium Income 0
0000005513-25-000059 4 3 IS 0 H Net Investment Income us-gaap/2025 Net Investment Income 0
0000005513-25-000059 4 4 IS 0 H Gain Loss On Investments us-gaap/2025 Net Investment Loss 0
0000005513-25-000059 4 5 IS 0 H Other Income us-gaap/2025 Other Income 0
0000005513-25-000059 4 6 IS 0 H Revenues us-gaap/2025 Total Revenue 0
0000005513-25-000059 4 8 IS 0 H Policyholder Benefits And Claims Incurred Net us-gaap/2025 Benefits and Change in Reserves for Future Benefits 0
0000005513-25-000059 4 9 IS 0 H Liability For Future Policy Benefit Remeasurement Gain Loss us-gaap/2025 Policy Benefits - Remeasurement Gain 1
0000005513-25-000059 4 10 IS 0 H Insurance Commissions us-gaap/2025 Commissions 0
0000005513-25-000059 4 11 IS 0 H Interest And Debt Expense us-gaap/2025 Interest and Debt Expense 0
0000005513-25-000059 4 12 IS 0 H Deferral Of Acquisition Costs 0000005513-25-000059 Deferral of Acquisition Costs 1
0000005513-25-000059 4 13 IS 0 H Deferred Policy Acquisition Cost Amortization Expense us-gaap/2025 Amortization of Deferred Acquisition Costs 0
0000005513-25-000059 4 14 IS 0 H Labor And Related Expense us-gaap/2025 Compensation Expense 0
0000005513-25-000059 4 15 IS 0 H Other Cost And Expense Operating us-gaap/2025 Other Expenses 0
0000005513-25-000059 4 16 IS 0 H Benefits Losses And Expenses us-gaap/2025 Total Benefits and Expenses 0
0000005513-25-000059 4 17 IS 0 H Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest us-gaap/2025 Income Before Income Tax 0
0000005513-25-000059 4 19 IS 0 H Current Income Tax Expense Benefit us-gaap/2025 Current 0
0000005513-25-000059 4 20 IS 0 H Deferred Income Tax Expense Benefit us-gaap/2025 Deferred 0
0000005513-25-000059 4 21 IS 0 H Income Tax Expense Benefit us-gaap/2025 Total Income Tax Expense 0
0000005513-25-000059 4 22 IS 0 H Net Income Loss us-gaap/2025 Net Income 0
0000005513-25-000059 4 24 IS 0 H Earnings Per Share Basic us-gaap/2025 Basic 0
0000005513-25-000059 4 25 IS 0 H Earnings Per Share Diluted us-gaap/2025 Assuming Dilution 0
0000005513-25-000059 5 1 CI 0 H Net Income Loss us-gaap/2025 Net Income 0
0000005513-25-000059 5 3 CI 0 H Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax us-gaap/2025 Change in Net Unrealized Loss on Securities (net of tax expense (benefit) of $110.2; $(119.2)) 0
0000005513-25-000059 5 4 CI 0 H Oci Liability For Future Policy Benefit Gain Loss Before Reclassification Adjustment After Tax us-gaap/2025 Change in the Effect of Discount Rate Assumptions on the Liability for Future Policy Benefits, Net of Reinsurance (net of tax expense (benefit) of $(42.6); $234.1) 0
0000005513-25-000059 5 5 CI 0 H Other Comprehensive Income Loss Net Gain On Derivatives Adjustment Net Of Tax 0000005513-25-000059 Change in Net Loss on Derivatives (net of tax expense (benefit) of $11.7; $(14.1)) 0
0000005513-25-000059 5 6 CI 0 H Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax us-gaap/2025 Change in Foreign Currency Translation Adjustment (net of tax expense (benefit) of $(0.2); $0.3) 0
0000005513-25-000059 5 7 CI 0 H Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax us-gaap/2025 Change in Unrecognized Pension and Postretirement Benefit Costs (net of tax expense (benefit) of $(0.2); $9.4) 0
0000005513-25-000059 5 8 CI 0 H Other Comprehensive Income Loss Net Of Tax us-gaap/2025 Total Other Comprehensive Income 0
0000005513-25-000059 5 9 CI 0 H Comprehensive Income Net Of Tax us-gaap/2025 Comprehensive Income 0
0000005513-25-000059 6 1 CI 1 H Other Comprehensive Income Loss Available For Sale Securities Tax us-gaap/2025 Change in Net Unrealized Gain on Securities Before Adjustment, Tax expense (benefit) 0
0000005513-25-000059 6 2 CI 1 H Oci Liability For Future Policy Benefit Gain Loss Before Reclassification Adjustment Tax us-gaap/2025 Change in the Effect of Discount Rate ASsumptions on the LIability for Future Policy Benefits, Net of Reinsurance net of tax expense (benefit) 0
0000005513-25-000059 6 3 CI 1 H Other Comprehensive Income Loss Net Gain On Derivatives Adjustment Tax 0000005513-25-000059 Change in Net Loss on Derivatives, tax expense (benefit) 0
0000005513-25-000059 6 4 CI 1 H Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax us-gaap/2025 Change in Foreign Currency Translation Adjustment, tax expense (benefit) 0
0000005513-25-000059 6 5 CI 1 H Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax us-gaap/2025 Change in Unrecognized Pension and Postretirement Benefit Costs, tax expense (benefit) 1
0000005513-25-000059 7 11 EQ 0 H Stockholders Equity us-gaap/2025 Balance at Beginning of Year 0
0000005513-25-000059 7 12 EQ 0 H Stock Issued During Period Value New Issues us-gaap/2025 Common Stock Activity 0
0000005513-25-000059 7 13 EQ 0 H Treasury Stock Value Acquired Cost Method us-gaap/2025 Cost of Shares Repurchased 1
0000005513-25-000059 7 14 EQ 0 H Other Comprehensive Income Loss Net Of Tax us-gaap/2025 Other Comprehensive Income 0
0000005513-25-000059 7 15 EQ 0 H Net Income Loss us-gaap/2025 Net Income 0
0000005513-25-000059 7 16 EQ 0 H Dividends Cash us-gaap/2025 Dividends to Stockholders (per common share: $0.420; $0.365) 1
0000005513-25-000059 7 17 EQ 0 H Stockholders Equity us-gaap/2025 Balance at End of Year 0
0000005513-25-000059 8 1 EQ 1 H Common Stock Dividends Per Share Cash Paid us-gaap/2025 Common Stock, Dividends, Per Share, Cash Paid 0
0000005513-25-000059 9 2 CF 0 H Net Income Loss us-gaap/2025 Net Income 0
0000005513-25-000059 9 4 CF 0 H Increase Decrease In Receivables us-gaap/2025 Change in Receivables 1
0000005513-25-000059 9 5 CF 0 H Increase Decrease In Deferred Policy Acquisition Costs us-gaap/2025 Change in Deferred Acquisition Costs 1
0000005513-25-000059 9 6 CF 0 H Increase Decrease In Insurance Liabilities us-gaap/2025 Change in Insurance Reserves and Liabilities 0
0000005513-25-000059 9 7 CF 0 H Increase Decrease In Accrued Income Taxes Payable us-gaap/2025 Change in Income Taxes 0
0000005513-25-000059 9 8 CF 0 H Increase Decrease In Other Accrued Liabilities us-gaap/2025 Change in Other Accrued Liabilities 0
0000005513-25-000059 9 9 CF 0 H Increase Decrease In Accrued Investment Income Receivable us-gaap/2025 Non-cash Components of Net Investment Income 1
0000005513-25-000059 9 10 CF 0 H Gain Loss On Investments us-gaap/2025 Net Investment Loss 1
0000005513-25-000059 9 11 CF 0 H Depreciation Amortization And Accretion Net us-gaap/2025 Depreciation 0
0000005513-25-000059 9 12 CF 0 H Increase Decrease In Prepaid Reinsurance Premiums us-gaap/2025 Amortization of the Cost of Reinsurance 1
0000005513-25-000059 9 13 CF 0 H Other Noncash Income Expense us-gaap/2025 Other, Net 1
0000005513-25-000059 9 14 CF 0 H Net Cash Provided By Used In Operating Activities us-gaap/2025 Net Cash Provided (Used) by Operating Activities 0
0000005513-25-000059 9 16 CF 0 H Proceeds From Sale Of Available For Sale Securities Debt us-gaap/2025 Proceeds from Sales of Fixed Maturity Securities 0
0000005513-25-000059 9 17 CF 0 H Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities us-gaap/2025 Proceeds from Maturities of Fixed Maturity Securities 0
0000005513-25-000059 9 18 CF 0 H Proceeds From Sale And Maturity Of Other Investments us-gaap/2025 Proceeds from Sales and Maturities of Other Investments 0
0000005513-25-000059 9 19 CF 0 H Payments To Acquire Available For Sale Securities Debt us-gaap/2025 Purchases of Fixed Maturity Securities 1
0000005513-25-000059 9 20 CF 0 H Payments To Acquire Other Investments us-gaap/2025 Purchases of Other Investments 1
0000005513-25-000059 9 21 CF 0 H Payments For Proceeds From Short Term Investments us-gaap/2025 Net Sales and Maturities (Purchases) of Short-term Investments 1
0000005513-25-000059 9 22 CF 0 H Net Increase Decrease In Payables For Collateral On Investments 0000005513-25-000059 Net Increase in Payables for Collateral on Investments 0
0000005513-25-000059 9 23 CF 0 H Payments To Acquire Property Plant And Equipment us-gaap/2025 Net Purchases of Property and Equipment 1
0000005513-25-000059 9 24 CF 0 H Net Cash Provided By Used In Investing Activities us-gaap/2025 Net Cash Provided (Used) by Investing Activities 0
0000005513-25-000059 9 26 CF 0 H Proceeds From Issuance Of Common Stock us-gaap/2025 Issuance of Common Stock 0
0000005513-25-000059 9 27 CF 0 H Payments For Repurchase Of Common Stock us-gaap/2025 Repurchase of Common Stock 1
0000005513-25-000059 9 28 CF 0 H Payments Of Dividends us-gaap/2025 Dividends Paid to Stockholders 1
0000005513-25-000059 9 29 CF 0 H Additions To Contract Holders Funds us-gaap/2025 Proceeds from Policyholder Account Deposits 0
0000005513-25-000059 9 30 CF 0 H Withdrawal From Contract Holders Funds us-gaap/2025 Payments for Policyholder Account Withdrawals 1
0000005513-25-000059 9 31 CF 0 H Proceeds From Payments For Other Financing Activities us-gaap/2025 Other, Net 0
0000005513-25-000059 9 32 CF 0 H Net Cash Provided By Used In Financing Activities us-gaap/2025 Net Cash Used by Financing Activities 0
0000005513-25-000059 9 33 CF 0 H Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect us-gaap/2025 Net Increase in Cash and Bank Deposits 0
0000005513-25-000059 9 34 CF 0 H Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents us-gaap/2025 Cash and Bank Deposits at Beginning of Year 0
0000005513-25-000059 9 35 CF 0 H Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents us-gaap/2025 Cash and Bank Deposits at End of Period 0

Description
Field Name Field Description
adsh Accession Number. The 20-character string formed from the 18-digit number assigned by the SEC to each EDGAR submission.
report Represents the report grouping. This field corresponds to the statement (stmt) field, which indicates the type of statement. The numeric value refers to the “R file” as posted on the EDGAR Web site.
line Represents the tag’s presentation line order for a given report. Together with the statement and report field, presentation location, order and grouping can be derived.
stmt The financial statement location to which the value of the “report” field pertains.
inpth Value was presented “parenthetically” instead of in columns within the financial statements. For example: Receivables (net of allowance for bad debts of $200 in 2012) $700.
rfile The type of interactive data file rendered on the EDGAR web site, H = .htm file, X = .xml file.
tag The tag chosen by the filer for this line item.
version The taxonomy identifier if the tag is a standard tag, otherwise adsh.
plabel The text presented on the line item, also known as a “preferred” label.
negating Flag to indicate whether the plabel is negating.