$unm 2018 Q4 10-K

Concept	2018 Q4	2018 Q3	2018 Q2
Revenue	$2.881B	$2.928B	$2.890B
YoY Change	1.47%	3.86%	2.42%
Cost Of Revenue		$2.579B	$1.804B
YoY Change		46.06%	2.97%
Gross Profit		$348.9M	$1.086B
YoY Change		-66.88%	1.51%
Gross Profit Margin		11.92%	37.58%
Selling, General & Admin	$219.8M	$224.2M	$220.2M
YoY Change	10.07%	1.08%	1.99%
% of Gross Profit		64.26%	20.27%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$26.50M	$136.9M	$140.2M
YoY Change	6.0%	10.67%	1.37%
% of Gross Profit		39.24%	12.91%
Operating Expenses	$2.529B	$3.263B	$2.493B
YoY Change	3.07%	35.27%	3.0%
Operating Profit		-$2.914B	-$1.407B
YoY Change		114.47%	4.18%
Interest Expense	-$42.00M	-$42.70M	-$42.40M
YoY Change	4.74%	6.48%	6.27%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$309.7M	-$377.8M	$354.8M
YoY Change	-10.31%	-203.0%	-1.88%
Income Tax	$60.60M	-$93.10M	$69.30M
% Of Pretax Income	19.57%		19.53%
Net Earnings	$249.1M	-$284.7M	$285.5M
YoY Change	-6.67%	-212.84%	16.48%
Net Earnings / Revenue	8.65%	-9.72%	9.88%
Basic Earnings Per Share	$1.15	-$1.30	$1.29
Diluted Earnings Per Share	$1.15	-$1.30	$1.29
COMMON SHARES
Basic Shares Outstanding	218.7M shares	218.9M shares	220.8M shares
Diluted Shares Outstanding		218.9M shares	221.1M shares

Concept	2018 Q4	2018 Q3	2018 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$94.00M	$214.0M	$100.0M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$546.9M	$521.0M	$510.8M
YoY Change	8.34%	6.35%	2.76%
Goodwill	$350.3M	$346.0M	$346.5M
YoY Change	3.46%	2.31%	2.79%
Intangibles
YoY Change
Long-Term Investments	$50.68B	$50.93B	$51.20B
YoY Change	-4.42%	-3.57%	-2.23%
Other Assets	$110.0M	$157.0M
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$61.88B	$62.25B	$62.37B
YoY Change	-3.34%	-2.44%	-1.6%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00	$0.00	$200.0M
YoY Change	-100.0%	-100.0%
Total Short-Term Liabilities	$152.0M	$238.0M	$508.0M
YoY Change	-74.62%	-62.75%	24.51%
LONG-TERM LIABILITIES
Long-Term Debt	$2.971B	$2.984B	$2.998B
YoY Change	8.5%	8.35%	1.01%
Other Long-Term Liabilities	$1.635B	$1.764B	$1.672B
YoY Change	-5.33%	3.83%	0.24%
Total Long-Term Liabilities	$2.971B	$4.748B	$4.670B
YoY Change	8.5%	6.62%	0.73%
TOTAL LIABILITIES
Total Short-Term Liabilities	$152.0M	$238.0M	$508.0M
Total Long-Term Liabilities	$2.971B	$4.748B	$4.670B
Total Liabilities	$53.25B	$53.73B	$52.92B
YoY Change	-2.18%	-1.15%	-2.12%
SHAREHOLDERS EQUITY
Retained Earnings	$9.863B	$9.671B	$10.01B
YoY Change	3.36%	3.68%	9.7%
Common Stock	$2.352B	$2.345B	$2.339B
YoY Change	0.79%	0.83%	1.12%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$2.779B	$2.629B	$2.629B
YoY Change	14.44%	12.9%	17.98%
Treasury Stock Shares	90.55M shares	86.35M shares	86.35M shares
Shareholders Equity	$8.622B	$8.518B	$9.446B
YoY Change
Total Liabilities & Shareholders Equity	$61.88B	$62.25B	$62.37B
YoY Change	-3.34%	-2.44%	-1.6%

Concept	2018 Q4	2018 Q3	2018 Q2
OPERATING ACTIVITIES
Net Income	$249.1M	-$284.7M	$285.5M
YoY Change	-6.67%	-212.84%	16.48%
Depreciation, Depletion And Amortization	$26.50M	$136.9M	$140.2M
YoY Change	6.0%	10.67%	1.37%
Cash From Operating Activities	$453.0M	$387.3M	$396.3M
YoY Change	59.84%	72.9%	18.65%
INVESTING ACTIVITIES
Capital Expenditures	-$48.50M	-$36.00M	-$30.50M
YoY Change	19.46%	113.02%	48.78%
Acquisitions
YoY Change
Other Investing Activities	-$294.2M	$50.20M	-$690.4M
YoY Change	345.08%	-159.34%	425.02%
Cash From Investing Activities	-$342.7M	$14.20M	-$720.9M
YoY Change	221.18%	-113.99%	374.28%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-230.5M	-286.8M	115.2M
YoY Change	36.07%	69.3%	-166.98%
NET CHANGE
Cash From Operating Activities	453.0M	387.3M	396.3M
Cash From Investing Activities	-342.7M	14.20M	-720.9M
Cash From Financing Activities	-230.5M	-286.8M	115.2M
Net Change In Cash	-120.2M	114.7M	-209.4M
YoY Change	-1746.58%	-344.56%	-2194.0%
FREE CASH FLOW
Cash From Operating Activities	$453.0M	$387.3M	$396.3M
Capital Expenditures	-$48.50M	-$36.00M	-$30.50M
Free Cash Flow	$501.5M	$423.3M	$426.8M
YoY Change	54.78%	75.72%	20.39%

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
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CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
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CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	62-1598430
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CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Chattanooga,
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	TN
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CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2019	us-gaap	Net Income Loss NetIncomeLoss	1100300000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	523400000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	994200000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	757000000.0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-614200000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	328100000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	2870900000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2314500000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	721700000	USD
CY2019	unm	Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense	-511700000	USD
CY2018	unm	Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense	371700000	USD
CY2017	unm	Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense	-245000000.0	USD
CY2019	unm	Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance And Net Of Tax Expense Benefit ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceAndNetOfTaxExpenseBenefit	-1942600000	USD
CY2018	unm	Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance And Net Of Tax Expense Benefit ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceAndNetOfTaxExpenseBenefit	1411800000	USD
CY2017	unm	Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance And Net Of Tax Expense Benefit ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceAndNetOfTaxExpenseBenefit	-554500000	USD
CY2019	unm	Other Comprehensive Income Loss Net Gain On Hedges Adjustment Tax OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax	-17000000.0	USD
CY2018	unm	Other Comprehensive Income Loss Net Gain On Hedges Adjustment Tax OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax	-8200000	USD
CY2017	unm	Other Comprehensive Income Loss Net Gain On Hedges Adjustment Tax OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax	-24400000	USD
CY2019	unm	Other Comprehensive Income Loss Net Gain On Hedges Adjustment Net Of Tax OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentNetOfTax	-62800000	USD
CY2018	unm	Other Comprehensive Income Loss Net Gain On Hedges Adjustment Net Of Tax OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentNetOfTax	-31700000	USD
CY2017	unm	Other Comprehensive Income Loss Net Gain On Hedges Adjustment Net Of Tax OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentNetOfTax	-45200000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-200000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	600000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	23600000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-50700000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	99500000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	9300000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-17000000.0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	8300000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	37600000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-60900000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	43000000.0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	851500000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-924200000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	178500000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1951800000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-400800000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1172700000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.09
CY2018	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.98
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.86
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	9965000000.0	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	8621800000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	9574900000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	1100300000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	523400000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	994200000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-37500000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	4700000	USD
CY2017	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	101800000	USD
CY2019	us-gaap	Deferred Policy Acquisition Costs Period Increase Decrease DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease	48700000	USD
CY2018	us-gaap	Deferred Policy Acquisition Costs Period Increase Decrease DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease	102500000	USD
CY2017	us-gaap	Deferred Policy Acquisition Costs Period Increase Decrease DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease	100900000	USD
CY2019	us-gaap	Increase Decrease In Insurance Liabilities IncreaseDecreaseInInsuranceLiabilities	376100000	USD
CY2018	us-gaap	Increase Decrease In Insurance Liabilities IncreaseDecreaseInInsuranceLiabilities	1193100000	USD
CY2017	us-gaap	Increase Decrease In Insurance Liabilities IncreaseDecreaseInInsuranceLiabilities	441900000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	248200000	USD
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-39100000	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	25600000	USD
CY2019	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	51300000	USD
CY2018	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-10100000	USD
CY2017	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	14600000	USD
CY2019	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	237900000	USD
CY2018	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	211100000	USD
CY2017	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	200100000	USD
CY2019	us-gaap	Gain Loss On Investments GainLossOnInvestments	-23200000	USD
CY2018	us-gaap	Gain Loss On Investments GainLossOnInvestments	-39500000	USD
CY2017	us-gaap	Gain Loss On Investments GainLossOnInvestments	40300000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	110100000	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	101400000	USD
CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	103400000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-81500000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-46600000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-27500000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1741600000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1536500000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1164100000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	955200000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	642500000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	436300000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2401000000.0	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2815400000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2560800000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	363500000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	454000000.0	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	257900000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	4022400000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	3861700000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	2808500000	USD
CY2019	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	568500000	USD
CY2018	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	623200000	USD
CY2017	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	474300000	USD
CY2019	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	267600000	USD
CY2018	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-200500000	USD
CY2017	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	356400000	USD
CY2019	us-gaap	Increase Decrease In Cash Collateral For Loaned Securities IncreaseDecreaseInCashCollateralForLoanedSecurities	-104100000	USD
CY2018	us-gaap	Increase Decrease In Cash Collateral For Loaned Securities IncreaseDecreaseInCashCollateralForLoanedSecurities	-268100000	USD
CY2017	us-gaap	Increase Decrease In Cash Collateral For Loaned Securities IncreaseDecreaseInCashCollateralForLoanedSecurities	-9800000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	145400000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	150900000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	144100000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	105300000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-300000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1393500000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-930100000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-499300000	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-200000000.0	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	841900000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	290700000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	493100000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	60000000.0	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	63500000	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	25900000	USD
CY2018	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2017	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	6100000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	4600000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	10800000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	400300000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	356200000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	401800000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	229200000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	215600000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	196000000.0	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-57500000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-53300000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-37300000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-358000000.0	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-589800000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-687800000	USD
CY2019	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-9900000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	16600000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-23000000.0	USD
CY2018Q4	us-gaap	Cash Cash	94000000.0	USD
CY2017Q4	us-gaap	Cash Cash	77400000	USD
CY2016Q4	us-gaap	Cash Cash	100400000	USD
CY2019Q4	us-gaap	Cash Cash	84100000	USD
CY2018Q4	us-gaap	Cash Cash	94000000.0	USD
CY2017Q4	us-gaap	Cash Cash	77400000	USD
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	Integer
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%;">Use of Estimates</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">: The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect amounts reported in the financial statements and accompanying notes. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed herein.</span>
CY2019Q4	unm	Policy Loans Cededto Reinsurers PolicyLoansCededtoReinsurers	3490600000	USD
CY2018Q4	unm	Policy Loans Cededto Reinsurers PolicyLoansCededtoReinsurers	3449300000	USD
CY2019Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	90500000	USD
CY2018Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	43400000	USD
CY2019Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	49800000	USD
CY2018Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	10300000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1195300000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1151800000	USD
CY2019Q4	us-gaap	Value Of Business Acquired Voba ValueOfBusinessAcquiredVOBA	88700000	USD
CY2018Q4	us-gaap	Value Of Business Acquired Voba ValueOfBusinessAcquiredVOBA	96700000	USD
CY2019Q4	us-gaap	Accumulated Amortization Of Other Deferred Costs AccumulatedAmortizationOfOtherDeferredCosts	144100000	USD
CY2018Q4	us-gaap	Accumulated Amortization Of Other Deferred Costs AccumulatedAmortizationOfOtherDeferredCosts	133000000.0	USD
CY2019	us-gaap	Present Value Of Future Insurance Profits Amortization Expense1 PresentValueOfFutureInsuranceProfitsAmortizationExpense1	7100000	USD
CY2018	us-gaap	Present Value Of Future Insurance Profits Amortization Expense1 PresentValueOfFutureInsuranceProfitsAmortizationExpense1	6400000	USD
CY2017	us-gaap	Present Value Of Future Insurance Profits Amortization Expense1 PresentValueOfFutureInsuranceProfitsAmortizationExpense1	4800000	USD
CY2019	us-gaap	Revenue Recognition Sales Of Services RevenueRecognitionSalesOfServices	Fees from our leave management services and administrative-services only (ASO) business are reported as other income when services are rendered.
CY2019Q4	us-gaap	Deferred Revenue And Credits DeferredRevenueAndCredits	8500000	USD
CY2018Q4	us-gaap	Deferred Revenue And Credits DeferredRevenueAndCredits	12500000	USD
CY2019	unm	Premium Tax Expense PremiumTaxExpense	170100000	USD
CY2018	unm	Premium Tax Expense PremiumTaxExpense	155800000	USD
CY2017	unm	Premium Tax Expense PremiumTaxExpense	158000000.0	USD
CY2019Q4	unm	Assets Participation Fund Account AssetsParticipationFundAccount	311200000	USD
CY2018Q4	unm	Assets Participation Fund Account AssetsParticipationFundAccount	301200000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	47443700000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	27500000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	32600000	USD
CY2019Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	48120500000	USD
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	57400000	USD
CY2019Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	57400000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	43011700000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	30900000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	29200000	USD
CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	43555600000	USD
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	69100000	USD
CY2018Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	69100000	USD
CY2019	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	8300000	USD
CY2018	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	-15200000	USD
CY2019Q4	unm	Policy Loans Cededto Reinsurers PolicyLoansCededtoReinsurers	3490600000	USD
CY2018Q4	unm	Policy Loans Cededto Reinsurers PolicyLoansCededtoReinsurers	3449300000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	821500000	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities Within One Year Unrealized Gain Position Gross Gain AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearUnrealizedGainPositionGrossGain	14500000	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities Within One Year Unrealized Loss Position Gross Loss AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearUnrealizedLossPositionGrossLoss	200000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	6286200000	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities After One Through Five Years Unrealized Gain Position Gross Gain AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsUnrealizedGainPositionGrossGain	456500000	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities After One Through Five Years Unrealized Loss Position Gross Loss AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsUnrealizedLossPositionGrossLoss	41700000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	13570800000	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities After Five Through Ten Years Unrealized Gain Position Gross Gain AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsUnrealizedGainPositionGrossGain	1688300000	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities After Five Through Ten Years Unrealized Loss Position Gross Loss AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsUnrealizedLossPositionGrossLoss	14600000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	19023000000.0	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities After Ten Years Unrealized Gain Position Gross Gain AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsUnrealizedGainPositionGrossGain	4195000000.0	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities After Ten Years Unrealized Loss Position Gross Loss AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsUnrealizedLossPositionGrossLoss	34300000	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities Amortized Cost Gross Subtotal AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostGrossSubtotal	39701500000	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities Unrealized Gain Position Gross Gain Gross Subtotal AvailableForSaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossGainGrossSubtotal	6354300000	USD
CY2019Q4	unm	Available For Sale Securities Debt Maturities Unrealized Gain Position Gross Loss Gross Subtotal AvailableForSaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossLossGrossSubtotal	90800000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	1377800000	USD
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Other Liabilities

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CY2019Q4

us-gaap

Liabilities

57048400000

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CY2018Q4

us-gaap

Liabilities

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CY2019Q4

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Commitments And Contingencies

CommitmentsAndContingencies

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CY2018Q4

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Commitments And Contingencies

CommitmentsAndContingencies

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CY2018Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

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CY2019Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

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CY2018Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

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shares

CY2019Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

725000000

shares

CY2019Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

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CY2018Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

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CY2019Q4

us-gaap

Common Stock Value

CommonStockValue

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USD

CY2018Q4

us-gaap

Common Stock Value

CommonStockValue

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CY2019Q4

us-gaap

Additional Paid In Capital Common Stock

AdditionalPaidInCapitalCommonStock

2348100000

USD

CY2018Q4

us-gaap

Additional Paid In Capital Common Stock

AdditionalPaidInCapitalCommonStock

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CY2019Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

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CY2018Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

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CY2019Q4

us-gaap

Retained Earnings Accumulated Deficit

RetainedEarningsAccumulatedDeficit

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CY2018Q4

us-gaap

Retained Earnings Accumulated Deficit

RetainedEarningsAccumulatedDeficit

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CY2019Q4

us-gaap

Treasury Stock Shares

TreasuryStockShares

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CY2018Q4

us-gaap

Treasury Stock Shares

TreasuryStockShares

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CY2019Q4

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Treasury Stock Value

TreasuryStockValue

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CY2018Q4

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Treasury Stock Value

TreasuryStockValue

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CY2019Q4

us-gaap

Stockholders Equity

StockholdersEquity

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CY2018Q4

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Stockholders Equity

StockholdersEquity

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CY2019Q4

us-gaap

Liabilities And Stockholders Equity

LiabilitiesAndStockholdersEquity

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CY2018Q4

us-gaap

Liabilities And Stockholders Equity

LiabilitiesAndStockholdersEquity

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CY2019

us-gaap

Premiums Earned Net

PremiumsEarnedNet

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CY2018

us-gaap

Premiums Earned Net

PremiumsEarnedNet

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USD

CY2017

us-gaap

Premiums Earned Net

PremiumsEarnedNet

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USD

CY2019

us-gaap

Net Investment Income

NetInvestmentIncome

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CY2018

us-gaap

Net Investment Income

NetInvestmentIncome

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CY2017

us-gaap

Net Investment Income

NetInvestmentIncome

2451700000

USD

CY2019

us-gaap

Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings

OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings

25300000

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CY2018

us-gaap

Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings

OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings

17500000

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CY2017

us-gaap

Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings

OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings

8100000

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CY2019

us-gaap

Debt And Equity Securities Realized Gain Loss Excluding Other Than Temporary Impairment

DebtAndEquitySecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairment

2100000

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CY2018

us-gaap

Debt And Equity Securities Realized Gain Loss Excluding Other Than Temporary Impairment

DebtAndEquitySecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairment

-22000000.0

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CY2017

us-gaap

Debt And Equity Securities Realized Gain Loss Excluding Other Than Temporary Impairment

DebtAndEquitySecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairment

48400000

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CY2019

us-gaap

Gain Loss On Investments

GainLossOnInvestments

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CY2018

us-gaap

Gain Loss On Investments

GainLossOnInvestments

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CY2017

us-gaap

Gain Loss On Investments

GainLossOnInvestments

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CY2019

us-gaap

Other Income

OtherIncome

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CY2018

us-gaap

Other Income

OtherIncome

198200000

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CY2017

us-gaap

Other Income

OtherIncome

197700000

USD

CY2019

us-gaap

Revenues

11998900000

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CY2018

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Revenues

11598500000

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CY2017

us-gaap

Revenues

11286800000

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CY2019

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Policyholder Benefits And Claims Incurred Net

PolicyholderBenefitsAndClaimsIncurredNet

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USD

CY2018

us-gaap

Policyholder Benefits And Claims Incurred Net

PolicyholderBenefitsAndClaimsIncurredNet

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CY2017

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Policyholder Benefits And Claims Incurred Net

PolicyholderBenefitsAndClaimsIncurredNet

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CY2019

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Insurance Commissions

InsuranceCommissions

1122700000

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CY2018

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Insurance Commissions

InsuranceCommissions

1108400000

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CY2017

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Insurance Commissions

InsuranceCommissions

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CY2019

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Interest And Debt Expense

InterestAndDebtExpense

177400000

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CY2018

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Interest And Debt Expense

InterestAndDebtExpense

167300000

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CY2017

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Interest And Debt Expense

InterestAndDebtExpense

159900000

USD

CY2019

unm

Cost Related To Early Retirement Of Debt

CostRelatedToEarlyRetirementOfDebt

27300000

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CY2018

unm

Cost Related To Early Retirement Of Debt

CostRelatedToEarlyRetirementOfDebt

0

USD

CY2017

unm

Cost Related To Early Retirement Of Debt

CostRelatedToEarlyRetirementOfDebt

0

USD

CY2019

us-gaap

Increase Decrease In Deferred Policy Acquisition Costs

IncreaseDecreaseInDeferredPolicyAcquisitionCosts

658600000

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CY2018

us-gaap

Increase Decrease In Deferred Policy Acquisition Costs

IncreaseDecreaseInDeferredPolicyAcquisitionCosts

668000000.0

USD

CY2017

us-gaap

Increase Decrease In Deferred Policy Acquisition Costs

IncreaseDecreaseInDeferredPolicyAcquisitionCosts

628000000.0

USD

CY2019

us-gaap

Deferred Policy Acquisition Cost Amortization Expense

DeferredPolicyAcquisitionCostAmortizationExpense

609900000

USD

CY2018

us-gaap

Deferred Policy Acquisition Cost Amortization Expense

DeferredPolicyAcquisitionCostAmortizationExpense

565500000

USD

CY2017

us-gaap

Deferred Policy Acquisition Cost Amortization Expense

DeferredPolicyAcquisitionCostAmortizationExpense

527100000

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CY2019

us-gaap

Labor And Related Expense

LaborAndRelatedExpense

898300000

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CY2018

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Labor And Related Expense

LaborAndRelatedExpense

885900000

USD

CY2017

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Labor And Related Expense

LaborAndRelatedExpense

852300000

USD

CY2019

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Other Cost And Expense Operating

OtherCostAndExpenseOperating

943600000

USD

CY2018

us-gaap

Other Cost And Expense Operating

OtherCostAndExpenseOperating

891200000

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CY2017

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Other Cost And Expense Operating

OtherCostAndExpenseOperating

855000000.0

USD

CY2019

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

10616800000

USD

CY2018

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

10970700000

USD

CY2017

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Benefits Losses And Expenses

BenefitsLossesAndExpenses

9882800000

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CY2019

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Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

1382100000

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CY2018

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

627800000

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CY2017

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

1404000000.0

USD

CY2019

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

274800000

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CY2018

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

227400000

USD

CY2017

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

401300000

USD

CY2019

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

7000000.0

USD

CY2018

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

-123000000.0

USD

CY2017

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

8500000

USD

CY2019

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

281800000

USD

CY2018

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

104400000

USD

CY2017

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

409800000

USD

CY2019

us-gaap

Net Income Loss

NetIncomeLoss

1100300000

USD

CY2018

us-gaap

Net Income Loss

NetIncomeLoss

523400000

USD

CY2017

us-gaap

Net Income Loss

NetIncomeLoss

994200000

USD

CY2019

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

5.25

CY2018

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

2.38

CY2017

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

4.39

CY2019

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

5.24

CY2018

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

2.38

CY2017

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

4.37

CY2019

us-gaap

Net Income Loss

NetIncomeLoss

1100300000

USD

CY2018

us-gaap

Net Income Loss

NetIncomeLoss

523400000

USD

CY2017

us-gaap

Net Income Loss

NetIncomeLoss

994200000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Available For Sale Securities Tax

OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

757000000.0

USD

CY2018

us-gaap

Other Comprehensive Income Loss Available For Sale Securities Tax

OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

-614200000

USD

CY2017

us-gaap

Other Comprehensive Income Loss Available For Sale Securities Tax

OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

328100000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax

OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

2870900000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax

OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

-2314500000

USD

CY2017

us-gaap

Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax

OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

721700000

USD

CY2019

unm

Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense

ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense

-511700000

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CY2018

unm

Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense

ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense

371700000

USD

CY2017

unm

Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense

ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense

-245000000.0

USD

CY2019

unm

Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance And Net Of Tax Expense Benefit

ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceAndNetOfTaxExpenseBenefit

-1942600000

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CY2018

unm

Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance And Net Of Tax Expense Benefit

ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceAndNetOfTaxExpenseBenefit

1411800000

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CY2017

unm

Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance And Net Of Tax Expense Benefit

ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceAndNetOfTaxExpenseBenefit

-554500000

USD

CY2019

unm

Other Comprehensive Income Loss Net Gain On Hedges Adjustment Tax

OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax

-17000000.0

USD

CY2018

unm

Other Comprehensive Income Loss Net Gain On Hedges Adjustment Tax

OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax

-8200000

USD

CY2017

unm

Other Comprehensive Income Loss Net Gain On Hedges Adjustment Tax

OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax

-24400000

USD

CY2019

unm

Other Comprehensive Income Loss Net Gain On Hedges Adjustment Net Of Tax

OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentNetOfTax

-62800000

USD

CY2018

unm

Other Comprehensive Income Loss Net Gain On Hedges Adjustment Net Of Tax

OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentNetOfTax

-31700000

USD

CY2017

unm

Other Comprehensive Income Loss Net Gain On Hedges Adjustment Net Of Tax

OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentNetOfTax

-45200000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax

OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

-200000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax

OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

600000

USD

CY2017

us-gaap

Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax

OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

0

USD

CY2019

us-gaap

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

23600000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

-50700000

USD

CY2017

us-gaap

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

99500000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax

OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

9300000

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CY2018

us-gaap

Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax

OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

-17000000.0

USD

CY2017

us-gaap

Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax

OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

8300000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax

OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

37600000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax

OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

-60900000

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CY2017

us-gaap

Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax

OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

43000000.0

USD

CY2019

us-gaap

Other Comprehensive Income Loss Net Of Tax

OtherComprehensiveIncomeLossNetOfTax

851500000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Net Of Tax

OtherComprehensiveIncomeLossNetOfTax

-924200000

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CY2017

us-gaap

Other Comprehensive Income Loss Net Of Tax

OtherComprehensiveIncomeLossNetOfTax

178500000

USD

CY2019

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

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CY2018

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

-400800000

USD

CY2017

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

1172700000

USD

CY2019

us-gaap

Common Stock Dividends Per Share Cash Paid

CommonStockDividendsPerShareCashPaid

1.09

CY2018

us-gaap

Common Stock Dividends Per Share Cash Paid

CommonStockDividendsPerShareCashPaid

0.98

CY2017

us-gaap

Common Stock Dividends Per Share Cash Paid

CommonStockDividendsPerShareCashPaid

0.86

CY2019Q4

us-gaap

Stockholders Equity

StockholdersEquity

9965000000.0

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CY2018Q4

us-gaap

Stockholders Equity

StockholdersEquity

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CY2017Q4

us-gaap

Stockholders Equity

StockholdersEquity

9574900000

USD

CY2019

us-gaap

Net Income Loss

NetIncomeLoss

1100300000

USD

CY2018

us-gaap

Net Income Loss

NetIncomeLoss

523400000

USD

CY2017

us-gaap

Net Income Loss

NetIncomeLoss

994200000

USD

CY2019

us-gaap

Increase Decrease In Receivables

IncreaseDecreaseInReceivables

-37500000

USD

CY2018

us-gaap

Increase Decrease In Receivables

IncreaseDecreaseInReceivables

4700000

USD

CY2017

us-gaap

Increase Decrease In Receivables

IncreaseDecreaseInReceivables

101800000

USD

CY2019

us-gaap

Deferred Policy Acquisition Costs Period Increase Decrease

DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease

48700000

USD

CY2018

us-gaap

Deferred Policy Acquisition Costs Period Increase Decrease

DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease

102500000

USD

CY2017

us-gaap

Deferred Policy Acquisition Costs Period Increase Decrease

DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease

100900000

USD

CY2019

us-gaap

Increase Decrease In Insurance Liabilities

IncreaseDecreaseInInsuranceLiabilities

376100000

USD

CY2018

us-gaap

Increase Decrease In Insurance Liabilities

IncreaseDecreaseInInsuranceLiabilities

1193100000

USD

CY2017

us-gaap

Increase Decrease In Insurance Liabilities

IncreaseDecreaseInInsuranceLiabilities

441900000

USD

CY2019

us-gaap

Increase Decrease In Accrued Income Taxes Payable

IncreaseDecreaseInAccruedIncomeTaxesPayable

248200000

USD

CY2018

us-gaap

Increase Decrease In Accrued Income Taxes Payable

IncreaseDecreaseInAccruedIncomeTaxesPayable

-39100000

USD

CY2017

us-gaap

Increase Decrease In Accrued Income Taxes Payable

IncreaseDecreaseInAccruedIncomeTaxesPayable

25600000

USD

CY2019

us-gaap

Increase Decrease In Other Accrued Liabilities

IncreaseDecreaseInOtherAccruedLiabilities

51300000

USD

CY2018

us-gaap

Increase Decrease In Other Accrued Liabilities

IncreaseDecreaseInOtherAccruedLiabilities

-10100000

USD

CY2017

us-gaap

Increase Decrease In Other Accrued Liabilities

IncreaseDecreaseInOtherAccruedLiabilities

14600000

USD

CY2019

us-gaap

Increase Decrease In Accrued Investment Income Receivable

IncreaseDecreaseInAccruedInvestmentIncomeReceivable

237900000

USD

CY2018

us-gaap

Increase Decrease In Accrued Investment Income Receivable

IncreaseDecreaseInAccruedInvestmentIncomeReceivable

211100000

USD

CY2017

us-gaap

Increase Decrease In Accrued Investment Income Receivable

IncreaseDecreaseInAccruedInvestmentIncomeReceivable

200100000

USD

CY2019

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-23200000

USD

CY2018

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-39500000

USD

CY2017

us-gaap

Gain Loss On Investments

GainLossOnInvestments

40300000

USD

CY2019

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

110100000

USD

CY2018

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

101400000

USD

CY2017

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

103400000

USD

CY2019

us-gaap

Other Noncash Income Expense

OtherNoncashIncomeExpense

-81500000

USD

CY2018

us-gaap

Other Noncash Income Expense

OtherNoncashIncomeExpense

-46600000

USD

CY2017

us-gaap

Other Noncash Income Expense

OtherNoncashIncomeExpense

-27500000

USD

CY2019

us-gaap

Net Cash Provided By Used In Operating Activities

NetCashProvidedByUsedInOperatingActivities

1741600000

USD

CY2018

us-gaap

Net Cash Provided By Used In Operating Activities

NetCashProvidedByUsedInOperatingActivities

1536500000

USD

CY2017

us-gaap

Net Cash Provided By Used In Operating Activities

NetCashProvidedByUsedInOperatingActivities

1164100000

USD

CY2019

us-gaap

Proceeds From Sale Of Available For Sale Securities

ProceedsFromSaleOfAvailableForSaleSecurities

955200000

USD

CY2018

us-gaap

Proceeds From Sale Of Available For Sale Securities

ProceedsFromSaleOfAvailableForSaleSecurities

642500000

USD

CY2017

us-gaap

Proceeds From Sale Of Available For Sale Securities

ProceedsFromSaleOfAvailableForSaleSecurities

436300000

USD

CY2019

us-gaap

Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities

ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

2401000000.0

USD

CY2018

us-gaap

Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities

ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

2815400000

USD

CY2017

us-gaap

Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities

ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

2560800000

USD

CY2019

us-gaap

Proceeds From Sale And Maturity Of Other Investments

ProceedsFromSaleAndMaturityOfOtherInvestments

363500000

USD

CY2018

us-gaap

Proceeds From Sale And Maturity Of Other Investments

ProceedsFromSaleAndMaturityOfOtherInvestments

454000000.0

USD

CY2017

us-gaap

Proceeds From Sale And Maturity Of Other Investments

ProceedsFromSaleAndMaturityOfOtherInvestments

257900000

USD

CY2019

us-gaap

Payments To Acquire Available For Sale Securities

PaymentsToAcquireAvailableForSaleSecurities

4022400000

USD

CY2018

us-gaap

Payments To Acquire Available For Sale Securities

PaymentsToAcquireAvailableForSaleSecurities

3861700000

USD

CY2017

us-gaap

Payments To Acquire Available For Sale Securities

PaymentsToAcquireAvailableForSaleSecurities

2808500000

USD

CY2019

us-gaap

Payments To Acquire Other Investments

PaymentsToAcquireOtherInvestments

568500000

USD

CY2018

us-gaap

Payments To Acquire Other Investments

PaymentsToAcquireOtherInvestments

623200000

USD

CY2017

us-gaap

Payments To Acquire Other Investments

PaymentsToAcquireOtherInvestments

474300000

USD

CY2019

us-gaap

Payments For Proceeds From Short Term Investments

PaymentsForProceedsFromShortTermInvestments

267600000

USD

CY2018

us-gaap

Payments For Proceeds From Short Term Investments

PaymentsForProceedsFromShortTermInvestments

-200500000

USD

CY2017

us-gaap

Payments For Proceeds From Short Term Investments

PaymentsForProceedsFromShortTermInvestments

356400000

USD

CY2019

us-gaap

Increase Decrease In Cash Collateral For Loaned Securities

IncreaseDecreaseInCashCollateralForLoanedSecurities

-104100000

USD

CY2018

us-gaap

Increase Decrease In Cash Collateral For Loaned Securities

IncreaseDecreaseInCashCollateralForLoanedSecurities

-268100000

USD

CY2017

us-gaap

Increase Decrease In Cash Collateral For Loaned Securities

IncreaseDecreaseInCashCollateralForLoanedSecurities

-9800000

USD

CY2019

us-gaap

Payments To Acquire Businesses Net Of Cash Acquired

PaymentsToAcquireBusinessesNetOfCashAcquired

0

USD

CY2018

us-gaap

Payments To Acquire Businesses Net Of Cash Acquired

PaymentsToAcquireBusinessesNetOfCashAcquired

145400000

USD

CY2017

us-gaap

Payments To Acquire Businesses Net Of Cash Acquired

PaymentsToAcquireBusinessesNetOfCashAcquired

0

USD

CY2019

us-gaap

Payments To Acquire Property Plant And Equipment

PaymentsToAcquirePropertyPlantAndEquipment

150900000

USD

CY2018

us-gaap

Payments To Acquire Property Plant And Equipment

PaymentsToAcquirePropertyPlantAndEquipment

144100000

USD

CY2017

us-gaap

Payments To Acquire Property Plant And Equipment

PaymentsToAcquirePropertyPlantAndEquipment

105300000

USD

CY2019

us-gaap

Payments For Proceeds From Other Investing Activities

PaymentsForProceedsFromOtherInvestingActivities

-300000

USD

CY2018

us-gaap

Payments For Proceeds From Other Investing Activities

PaymentsForProceedsFromOtherInvestingActivities

0

USD

CY2017

us-gaap

Payments For Proceeds From Other Investing Activities

PaymentsForProceedsFromOtherInvestingActivities

0

USD

CY2019

us-gaap

Net Cash Provided By Used In Investing Activities

NetCashProvidedByUsedInInvestingActivities

-1393500000

USD

CY2018

us-gaap

Net Cash Provided By Used In Investing Activities

NetCashProvidedByUsedInInvestingActivities

-930100000

USD

CY2017

us-gaap

Net Cash Provided By Used In Investing Activities

NetCashProvidedByUsedInInvestingActivities

-499300000

USD

CY2019

us-gaap

Proceeds From Repayments Of Short Term Debt

ProceedsFromRepaymentsOfShortTermDebt

0

USD

CY2018

us-gaap

Proceeds From Repayments Of Short Term Debt

ProceedsFromRepaymentsOfShortTermDebt

-200000000.0

USD

CY2017

us-gaap

Proceeds From Repayments Of Short Term Debt

ProceedsFromRepaymentsOfShortTermDebt

0

USD

CY2019

us-gaap

Proceeds From Issuance Of Long Term Debt

ProceedsFromIssuanceOfLongTermDebt

841900000

USD

CY2018

us-gaap

Proceeds From Issuance Of Long Term Debt

ProceedsFromIssuanceOfLongTermDebt

290700000

USD

CY2017

us-gaap

Proceeds From Issuance Of Long Term Debt

ProceedsFromIssuanceOfLongTermDebt

0

USD

CY2019

us-gaap

Repayments Of Long Term Debt

RepaymentsOfLongTermDebt

493100000

USD

CY2018

us-gaap

Repayments Of Long Term Debt

RepaymentsOfLongTermDebt

60000000.0

USD

CY2017

us-gaap

Repayments Of Long Term Debt

RepaymentsOfLongTermDebt

63500000

USD

CY2019

us-gaap

Payments Of Debt Extinguishment Costs

PaymentsOfDebtExtinguishmentCosts

25900000

USD

CY2018

us-gaap

Payments Of Debt Extinguishment Costs

PaymentsOfDebtExtinguishmentCosts

0

USD

CY2017

us-gaap

Payments Of Debt Extinguishment Costs

PaymentsOfDebtExtinguishmentCosts

0

USD

CY2019

us-gaap

Proceeds From Issuance Of Common Stock

ProceedsFromIssuanceOfCommonStock

6100000

USD

CY2018

us-gaap

Proceeds From Issuance Of Common Stock

ProceedsFromIssuanceOfCommonStock

4600000

USD

CY2017

us-gaap

Proceeds From Issuance Of Common Stock

ProceedsFromIssuanceOfCommonStock

10800000

USD

CY2019

us-gaap

Payments For Repurchase Of Common Stock

PaymentsForRepurchaseOfCommonStock

400300000

USD

CY2018

us-gaap

Payments For Repurchase Of Common Stock

PaymentsForRepurchaseOfCommonStock

356200000

USD

CY2017

us-gaap

Payments For Repurchase Of Common Stock

PaymentsForRepurchaseOfCommonStock

401800000

USD

CY2019

us-gaap

Payments Of Dividends

PaymentsOfDividends

229200000

USD

CY2018

us-gaap

Payments Of Dividends

PaymentsOfDividends

215600000

USD

CY2017

us-gaap

Payments Of Dividends

PaymentsOfDividends

196000000.0

USD

CY2019

us-gaap

Proceeds From Payments For Other Financing Activities

ProceedsFromPaymentsForOtherFinancingActivities

-57500000

USD

CY2018

us-gaap

Proceeds From Payments For Other Financing Activities

ProceedsFromPaymentsForOtherFinancingActivities

-53300000

USD

CY2017

us-gaap

Proceeds From Payments For Other Financing Activities

ProceedsFromPaymentsForOtherFinancingActivities

-37300000

USD

CY2019

us-gaap

Net Cash Provided By Used In Financing Activities

NetCashProvidedByUsedInFinancingActivities

-358000000.0

USD

CY2018

us-gaap

Net Cash Provided By Used In Financing Activities

NetCashProvidedByUsedInFinancingActivities

-589800000

USD

CY2017

us-gaap

Net Cash Provided By Used In Financing Activities

NetCashProvidedByUsedInFinancingActivities

-687800000

USD

CY2019

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

-9900000

USD

CY2018

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

16600000

USD

CY2017

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

-23000000.0

USD

CY2018Q4

us-gaap

Cash

94000000.0

USD

CY2017Q4

us-gaap

Cash

77400000

USD

CY2016Q4

us-gaap

Cash

100400000

USD

CY2019Q4

us-gaap

Cash

84100000

USD

CY2018Q4

us-gaap

Cash

94000000.0

USD

CY2017Q4

us-gaap

Cash

77400000

USD

CY2019

us-gaap

Number Of Operating Segments

NumberOfOperatingSegments

3

Integer

CY2019

us-gaap

Use Of Estimates

UseOfEstimates

Use of Estimates: The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect amounts reported in the financial statements and accompanying notes. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed herein.

CY2019Q4

unm

Policy Loans Cededto Reinsurers

PolicyLoansCededtoReinsurers

3490600000

USD

CY2018Q4

unm

Policy Loans Cededto Reinsurers

PolicyLoansCededtoReinsurers

3449300000

USD

CY2019Q4

us-gaap

Real Estate Investment Property Net

RealEstateInvestmentPropertyNet

90500000

USD

CY2018Q4

us-gaap

Real Estate Investment Property Net

RealEstateInvestmentPropertyNet

43400000

USD

CY2019Q4

us-gaap

Real Estate Investment Property Accumulated Depreciation

RealEstateInvestmentPropertyAccumulatedDepreciation

49800000

USD

CY2018Q4

us-gaap

Real Estate Investment Property Accumulated Depreciation

RealEstateInvestmentPropertyAccumulatedDepreciation

10300000

USD

CY2019Q4

us-gaap

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

1195300000

USD

CY2018Q4

us-gaap

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

1151800000

USD

CY2019Q4

us-gaap

Value Of Business Acquired Voba

ValueOfBusinessAcquiredVOBA

88700000

USD

CY2018Q4

us-gaap

Value Of Business Acquired Voba

ValueOfBusinessAcquiredVOBA

96700000

USD

CY2019Q4

us-gaap

Accumulated Amortization Of Other Deferred Costs

AccumulatedAmortizationOfOtherDeferredCosts

144100000

USD

CY2018Q4

us-gaap

Accumulated Amortization Of Other Deferred Costs

AccumulatedAmortizationOfOtherDeferredCosts

133000000.0

USD

CY2019

us-gaap

Present Value Of Future Insurance Profits Amortization Expense1

PresentValueOfFutureInsuranceProfitsAmortizationExpense1

7100000

USD

CY2018

us-gaap

Present Value Of Future Insurance Profits Amortization Expense1

PresentValueOfFutureInsuranceProfitsAmortizationExpense1

6400000

USD

CY2017

us-gaap

Present Value Of Future Insurance Profits Amortization Expense1

PresentValueOfFutureInsuranceProfitsAmortizationExpense1

4800000

USD

CY2019

us-gaap

Revenue Recognition Sales Of Services

RevenueRecognitionSalesOfServices

Fees from our leave management services and administrative-services only (ASO) business are reported as other income when services are rendered.

CY2019Q4

us-gaap

Deferred Revenue And Credits

DeferredRevenueAndCredits

8500000

USD

CY2018Q4

us-gaap

Deferred Revenue And Credits

DeferredRevenueAndCredits

12500000

USD

CY2019

unm

Premium Tax Expense

PremiumTaxExpense

170100000

USD

CY2018

unm

Premium Tax Expense

PremiumTaxExpense

155800000

USD

CY2017

unm

Premium Tax Expense

PremiumTaxExpense

158000000.0

USD

CY2019Q4

unm

Assets Participation Fund Account

AssetsParticipationFundAccount

311200000

USD

CY2018Q4

unm

Assets Participation Fund Account

AssetsParticipationFundAccount

301200000

USD

CY2019Q4

us-gaap

Available For Sale Securities Debt Securities

AvailableForSaleSecuritiesDebtSecurities

47443700000

USD

CY2019Q4

us-gaap

Derivative Assets

DerivativeAssets

27500000

USD

CY2019Q4

us-gaap

Equity Securities Fv Ni

EquitySecuritiesFvNi

32600000

USD

CY2019Q4

us-gaap

Assets Fair Value Disclosure

AssetsFairValueDisclosure

48120500000

USD

CY2019Q4

us-gaap

Derivative Liabilities

DerivativeLiabilities

57400000

USD

CY2019Q4

us-gaap

Liabilities Fair Value Disclosure

LiabilitiesFairValueDisclosure

57400000

USD

CY2018Q4

us-gaap

Available For Sale Securities Debt Securities

AvailableForSaleSecuritiesDebtSecurities

43011700000

USD

CY2018Q4

us-gaap

Derivative Assets

DerivativeAssets

30900000

USD

CY2018Q4

us-gaap

Equity Securities Fv Ni

EquitySecuritiesFvNi

29200000

USD

CY2018Q4

us-gaap

Assets Fair Value Disclosure

AssetsFairValueDisclosure

43555600000

USD

CY2018Q4

us-gaap

Derivative Liabilities

DerivativeLiabilities

69100000

USD

CY2018Q4

us-gaap

Liabilities Fair Value Disclosure

LiabilitiesFairValueDisclosure

69100000

USD

CY2019

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet

8300000

USD

CY2018

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet

-15200000

USD

CY2019Q4

unm

Policy Loans Cededto Reinsurers

PolicyLoansCededtoReinsurers

3490600000

USD

CY2018Q4

unm

Policy Loans Cededto Reinsurers

PolicyLoansCededtoReinsurers

3449300000

USD

CY2019Q4

us-gaap

Available For Sale Securities Debt Maturities Within One Year Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

821500000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities Within One Year Unrealized Gain Position Gross Gain

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearUnrealizedGainPositionGrossGain

14500000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities Within One Year Unrealized Loss Position Gross Loss

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearUnrealizedLossPositionGrossLoss

200000

USD

CY2019Q4

us-gaap

Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost

6286200000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities After One Through Five Years Unrealized Gain Position Gross Gain

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsUnrealizedGainPositionGrossGain

456500000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities After One Through Five Years Unrealized Loss Position Gross Loss

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsUnrealizedLossPositionGrossLoss

41700000

USD

CY2019Q4

us-gaap

Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

13570800000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities After Five Through Ten Years Unrealized Gain Position Gross Gain

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsUnrealizedGainPositionGrossGain

1688300000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities After Five Through Ten Years Unrealized Loss Position Gross Loss

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsUnrealizedLossPositionGrossLoss

14600000

USD

CY2019Q4

us-gaap

Available For Sale Securities Debt Maturities After Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

19023000000.0

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities After Ten Years Unrealized Gain Position Gross Gain

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsUnrealizedGainPositionGrossGain

4195000000.0

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities After Ten Years Unrealized Loss Position Gross Loss

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsUnrealizedLossPositionGrossLoss

34300000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities Amortized Cost Gross Subtotal

AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostGrossSubtotal

39701500000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities Unrealized Gain Position Gross Gain Gross Subtotal

AvailableForSaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossGainGrossSubtotal

6354300000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities Unrealized Gain Position Gross Loss Gross Subtotal

AvailableForSaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossLossGrossSubtotal

90800000

USD

CY2019Q4

us-gaap

Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost

1377800000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities Without Single Maturity Date Unrealized Gain Position Gross Gain

AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateUnrealizedGainPositionGrossGain

101300000

USD

CY2019Q4

unm

Available For Sale Securities Debt Maturities Without Single Maturity Date Unrealized Loss Position Gross Loss

AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateUnrealizedLossPositionGrossLoss

400000

USD

CY2019Q4

us-gaap

Available For Sale Debt Securities Amortized Cost Basis

AvailableForSaleDebtSecuritiesAmortizedCostBasis

41079300000

USD

CY2019Q4

unm

Availableforsale Securities Debt Maturities Unrealized Gain Position Gross Gain

AvailableforsaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossGain

6455600000

USD

CY2019Q4

unm

Available For Sale Securities Unrealized Loss Position Gross Loss Subtotal

AvailableForSaleSecuritiesUnrealizedLossPositionGrossLossSubtotal

91200000

USD

CY2018Q4

us-gaap

Available For Sale Securities Debt Maturities Within One Year Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

1073300000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities Within One Year Unrealized Gain Position Gross Gain

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearUnrealizedGainPositionGrossGain

14500000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities Within One Year Unrealized Loss Position Gross Loss

AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearUnrealizedLossPositionGrossLoss

8400000

USD

CY2018Q4

us-gaap

Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost

6267500000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities After One Through Five Years Unrealized Gain Position Gross Gain

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsUnrealizedGainPositionGrossGain

300600000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities After One Through Five Years Unrealized Loss Position Gross Loss

AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsUnrealizedLossPositionGrossLoss

80200000

USD

CY2018Q4

us-gaap

Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

12573400000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities After Five Through Ten Years Unrealized Gain Position Gross Gain

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsUnrealizedGainPositionGrossGain

795000000.0

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities After Five Through Ten Years Unrealized Loss Position Gross Loss

AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsUnrealizedLossPositionGrossLoss

303900000

USD

CY2018Q4

us-gaap

Available For Sale Securities Debt Maturities After Ten Years Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

18837200000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities After Ten Years Unrealized Gain Position Gross Gain

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsUnrealizedGainPositionGrossGain

2315600000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities After Ten Years Unrealized Loss Position Gross Loss

AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsUnrealizedLossPositionGrossLoss

355600000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities Amortized Cost Gross Subtotal

AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostGrossSubtotal

38751400000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities Unrealized Gain Position Gross Gain Gross Subtotal

AvailableForSaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossGainGrossSubtotal

3425700000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities Unrealized Gain Position Gross Loss Gross Subtotal

AvailableForSaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossLossGrossSubtotal

748100000

USD

CY2018Q4

us-gaap

Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost

AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost

1523800000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities Without Single Maturity Date Unrealized Gain Position Gross Gain

AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateUnrealizedGainPositionGrossGain

67200000

USD

CY2018Q4

unm

Available For Sale Securities Debt Maturities Without Single Maturity Date Unrealized Loss Position Gross Loss

AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateUnrealizedLossPositionGrossLoss

8300000

USD

CY2018Q4

us-gaap

Available For Sale Debt Securities Amortized Cost Basis

AvailableForSaleDebtSecuritiesAmortizedCostBasis

40275200000

USD

CY2018Q4

unm

Availableforsale Securities Debt Maturities Unrealized Gain Position Gross Gain

AvailableforsaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossGain

3492900000

USD

CY2018Q4

unm

Available For Sale Securities Unrealized Loss Position Gross Loss Subtotal

AvailableForSaleSecuritiesUnrealizedLossPositionGrossLossSubtotal

756400000

USD

CY2019Q4

us-gaap

Available For Sale Securities Debt Securities

AvailableForSaleSecuritiesDebtSecurities

47443700000

USD

CY2019Q4

us-gaap

Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax

AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

6455600000

USD

CY2019Q4

us-gaap

Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax

AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

91200000

USD

CY2019Q4

unm

Fixed Maturity Securities In Unrealized Loss Position Percent Of Total

FixedMaturitySecuritiesInUnrealizedLossPositionPercentOfTotal

1.000

CY2019Q4

us-gaap

Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Availableforsale Debt Securities

AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxAvailableforsaleDebtSecurities

0

USD

CY2018Q4

us-gaap

Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Availableforsale Debt Securities

AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxAvailableforsaleDebtSecurities

0

USD

CY2019Q4

unm

Commitment To Fund Private Placement Fixed Maturity Securities

CommitmentToFundPrivatePlacementFixedMaturitySecurities

98700000

USD

CY2019Q4

us-gaap

Variable Interest Entity Nonconsolidated Carrying Amount Assets

VariableInterestEntityNonconsolidatedCarryingAmountAssets

675100000

USD

CY2018Q4

us-gaap

Variable Interest Entity Nonconsolidated Carrying Amount Assets

VariableInterestEntityNonconsolidatedCarryingAmountAssets

575300000

USD

CY2019

us-gaap

Affordable Housing Tax Credits And Other Tax Benefits Amount

AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount

37800000

USD

CY2018

us-gaap

Affordable Housing Tax Credits And Other Tax Benefits Amount

AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount

41400000

USD

CY2017

us-gaap

Affordable Housing Tax Credits And Other Tax Benefits Amount

AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount

41800000

USD

CY2019

us-gaap

Amortization Method Qualified Affordable Housing Project Investments Amortization

AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization

25200000

USD

CY2018

us-gaap

Amortization Method Qualified Affordable Housing Project Investments Amortization

AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization

28100000

USD

CY2017

us-gaap

Amortization Method Qualified Affordable Housing Project Investments Amortization

AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization

23200000

USD

CY2019

unm

Tax Benefitsfrom Low Income Housing Investments

TaxBenefitsfromLowIncomeHousingInvestments

12600000

USD

CY2018

unm

Tax Benefitsfrom Low Income Housing Investments

TaxBenefitsfromLowIncomeHousingInvestments

13300000

USD

CY2017

unm

Tax Benefitsfrom Low Income Housing Investments

TaxBenefitsfromLowIncomeHousingInvestments

18600000

USD

CY2019Q4

us-gaap

Qualified Affordable Housing Project Investments Commitment

QualifiedAffordableHousingProjectInvestmentsCommitment

1900000

USD

CY2019Q4

unm

Loan To Value Ratio Maximum

LoanToValueRatioMaximum

0.75

CY2019

unm

Loan To Value Ratio Update Frequency

LoanToValueRatioUpdateFrequency

three

CY2019

unm

Mortgage Loan Inspection Frequency

MortgageLoanInspectionFrequency

two

CY2019Q4

unm

Mortage Loan Policy Debt Service Coverage Ratio Lower Range

MortageLoanPolicyDebtServiceCoverageRatioLowerRange

1.25

CY2019

unm

Mortgageloanpolicyamortizationperiod

25

CY2019Q4

us-gaap

Mortgage Loans On Real Estate Commercial And Consumer Net

MortgageLoansOnRealEstateCommercialAndConsumerNet

2397000000.0

USD

CY2019Q4

unm

Percentage Of Loan Portfolio

PercentageOfLoanPortfolio

1.000

CY2018Q4

us-gaap

Mortgage Loans On Real Estate Commercial And Consumer Net

MortgageLoansOnRealEstateCommercialAndConsumerNet

2295000000.0

USD

CY2018Q4

unm

Percentage Of Loan Portfolio

PercentageOfLoanPortfolio

1.000

CY2019Q4

us-gaap

Mortgage Loans On Real Estate Commercial And Consumer Net

MortgageLoansOnRealEstateCommercialAndConsumerNet

2397000000.0

USD

CY2019Q4

unm

Percentage Of Loan Portfolio

PercentageOfLoanPortfolio

1.000

CY2018Q4

us-gaap

Mortgage Loans On Real Estate Commercial And Consumer Net

MortgageLoansOnRealEstateCommercialAndConsumerNet

2295000000.0

USD

CY2018Q4

unm

Percentage Of Loan Portfolio

PercentageOfLoanPortfolio

1.000

CY2019Q4

us-gaap

Mortgage Loans On Real Estate Commercial And Consumer Net

MortgageLoansOnRealEstateCommercialAndConsumerNet

2397000000.0

USD

CY2018Q4

us-gaap

Mortgage Loans On Real Estate Commercial And Consumer Net

MortgageLoansOnRealEstateCommercialAndConsumerNet

2295000000.0

USD

CY2019Q4

us-gaap

Mortgage Loans On Real Estate Commercial And Consumer Net

MortgageLoansOnRealEstateCommercialAndConsumerNet

2397000000.0

USD

CY2018Q4

us-gaap

Mortgage Loans On Real Estate Commercial And Consumer Net

MortgageLoansOnRealEstateCommercialAndConsumerNet

2295000000.0

USD

CY2019

us-gaap

Gains Losses On Sales Of Other Real Estate

GainsLossesOnSalesOfOtherRealEstate

0

USD

CY2019

unm

Number Of Changes To Accounting Policy For Estimating Credit Losses On Mortgage Loans

NumberOfChangesToAccountingPolicyForEstimatingCreditLossesOnMortgageLoans

0

CY2017Q4

us-gaap

Financing Receivable Allowance For Credit Losses

FinancingReceivableAllowanceForCreditLosses

0

USD

CY2019

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

600000

USD

CY2018

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

2300000

USD

CY2019Q4

unm

Committments To Fund Commercial Mortgage Loans

CommittmentsToFundCommercialMortgageLoans

56000000.0

USD

CY2019

us-gaap

Repurchase Agreements Maturities

RepurchaseAgreementsMaturities

30

CY2019Q4

unm

Collateral Requirements Minimum Percentage Collateral To Fair Value Of Securities Loaned Or Purchased Under Repurchase Agreements

CollateralRequirementsMinimumPercentageCollateralToFairValueOfSecuritiesLoanedOrPurchasedUnderRepurchaseAgreements

1.02

CY2019Q4

unm

Collateral Requirements Minimum Percentage Collateral To Fair Value Of Securities Loaned Or Purchased Under Repurchase Agreements

CollateralRequirementsMinimumPercentageCollateralToFairValueOfSecuritiesLoanedOrPurchasedUnderRepurchaseAgreements

1.02

CY2019Q4

us-gaap

Securities Borrowed Gross

SecuritiesBorrowedGross

176400000

USD

CY2018Q4

us-gaap

Securities Borrowed Gross

SecuritiesBorrowedGross

164100000

USD

CY2019Q4

us-gaap

Securities Sold Under Agreements To Repurchase

SecuritiesSoldUnderAgreementsToRepurchase

0

USD

CY2019Q4

us-gaap

Federal Home Loan Bank Stock

FederalHomeLoanBankStock

18500000

USD

CY2018Q4

us-gaap

Federal Home Loan Bank Stock

FederalHomeLoanBankStock

24100000

USD

CY2019Q4

us-gaap

Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch

FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch

0

USD

CY2018Q4

us-gaap

Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch

FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch

104000000.0

USD

CY2019Q4

us-gaap

Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1

FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1

346500000

USD

CY2018Q4

us-gaap

Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged1

FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1

399700000

USD

CY2019Q4

us-gaap

Derivative Fair Value Of Derivative Asset

DerivativeFairValueOfDerivativeAsset

27500000

USD

CY2019Q4

us-gaap

Derivative Asset Fair Value Gross Liability

DerivativeAssetFairValueGrossLiability

0

USD

CY2019Q4

us-gaap

Derivative Assets

DerivativeAssets

27500000

USD

CY2019Q4

us-gaap

Derivative Collateral Obligation To Return Securities

DerivativeCollateralObligationToReturnSecurities

4000000.0

USD

CY2019Q4

us-gaap

Derivative Collateral Obligation To Return Cash

DerivativeCollateralObligationToReturnCash

23500000

USD

CY2019Q4

us-gaap

Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral

DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral

0

USD

CY2019Q4

us-gaap

Securities Borrowed Gross

SecuritiesBorrowedGross

176400000

USD

CY2019Q4

us-gaap

Securities Borrowed Liability

SecuritiesBorrowedLiability

0

USD

CY2019Q4

us-gaap

Securities Borrowed

SecuritiesBorrowed

176400000

USD

CY2019Q4

us-gaap

Securities Borrowed Collateral Obligation To Return Securities

SecuritiesBorrowedCollateralObligationToReturnSecurities

176400000

USD

CY2019Q4

us-gaap

Securities Borrowed Collateral Obligation To Return Cash

SecuritiesBorrowedCollateralObligationToReturnCash

0

USD

CY2019Q4

us-gaap

Securities Borrowed Amount Offset Against Collateral

SecuritiesBorrowedAmountOffsetAgainstCollateral

0

USD

CY2019Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross

203900000

USD

CY2019Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability

0

USD

CY2019Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed

203900000

USD

CY2019Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities

180400000

USD

CY2019Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash

23500000

USD

CY2019Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral

0

USD

CY2018Q4

us-gaap

Derivative Fair Value Of Derivative Asset

DerivativeFairValueOfDerivativeAsset

30900000

USD

CY2018Q4

us-gaap

Derivative Asset Fair Value Gross Liability

DerivativeAssetFairValueGrossLiability

0

USD

CY2018Q4

us-gaap

Derivative Assets

DerivativeAssets

30900000

USD

CY2018Q4

us-gaap

Derivative Collateral Obligation To Return Securities

DerivativeCollateralObligationToReturnSecurities

6900000

USD

CY2018Q4

us-gaap

Securities Loaned

SecuritiesLoaned

100000

USD

CY2018Q4

us-gaap

Derivative Collateral Obligation To Return Cash

DerivativeCollateralObligationToReturnCash

24000000.0

USD

CY2018Q4

us-gaap

Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral

DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral

0

USD

CY2018Q4

us-gaap

Securities Borrowed Gross

SecuritiesBorrowedGross

164100000

USD

CY2018Q4

us-gaap

Securities Borrowed Liability

SecuritiesBorrowedLiability

0

USD

CY2018Q4

us-gaap

Securities Borrowed

SecuritiesBorrowed

164100000

USD

CY2018Q4

us-gaap

Securities Borrowed Collateral Obligation To Return Securities

SecuritiesBorrowedCollateralObligationToReturnSecurities

164000000.0

USD

CY2018Q4

us-gaap

Securities Borrowed Collateral Obligation To Return Cash

SecuritiesBorrowedCollateralObligationToReturnCash

100000

USD

CY2018Q4

us-gaap

Securities Borrowed Amount Offset Against Collateral

SecuritiesBorrowedAmountOffsetAgainstCollateral

0

USD

CY2018Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross

195000000.0

USD

CY2018Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability

0

USD

CY2018Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed

195000000.0

USD

CY2018Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities

170900000

USD

CY2018Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash

24100000

USD

CY2018Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral

0

USD

CY2018Q4

us-gaap

Securities Loaned Gross

SecuritiesLoanedGross

100000

USD

CY2018Q4

us-gaap

Securities Loaned Asset

SecuritiesLoanedAsset

0

USD

CY2018Q4

us-gaap

Securities Loaned Collateral Right To Reclaim Securities

SecuritiesLoanedCollateralRightToReclaimSecurities

100000

USD

CY2018Q4

us-gaap

Securities Loaned Collateral Right To Reclaim Cash

SecuritiesLoanedCollateralRightToReclaimCash

0

USD

CY2018Q4

us-gaap

Securities Loaned Amount Offset Against Collateral

SecuritiesLoanedAmountOffsetAgainstCollateral

0

USD

CY2018Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross

DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross

38100000

USD

CY2018Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset

DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset

0

USD

CY2018Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned

DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned

38100000

USD

CY2018Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities

DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities

33300000

USD

CY2018Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash

DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash

0

USD

CY2018Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral

DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral

4800000

USD

CY2019

us-gaap

Investment Income Interest And Dividend

InvestmentIncomeInterestAndDividend

2480200000

USD

CY2018

us-gaap

Investment Income Interest And Dividend

InvestmentIncomeInterestAndDividend

2502400000

USD

CY2017

us-gaap

Investment Income Interest And Dividend

InvestmentIncomeInterestAndDividend

2498600000

USD

CY2019

us-gaap

Investment Income Investment Expense

InvestmentIncomeInvestmentExpense

32100000

USD

CY2018

us-gaap

Investment Income Investment Expense

InvestmentIncomeInvestmentExpense

35200000

USD

CY2017

us-gaap

Investment Income Investment Expense

InvestmentIncomeInvestmentExpense

32800000

USD

CY2019

unm

Investment Income On Pfa Assets

InvestmentIncomeOnPfaAssets

12800000

USD

CY2018

unm

Investment Income On Pfa Assets

InvestmentIncomeOnPfaAssets

13500000

USD

CY2017

unm

Investment Income On Pfa Assets

InvestmentIncomeOnPfaAssets

14100000

USD

CY2019

us-gaap

Net Investment Income

NetInvestmentIncome

2435300000

USD

CY2018

us-gaap

Net Investment Income

NetInvestmentIncome

2453700000

USD

CY2017

us-gaap

Net Investment Income

NetInvestmentIncome

2451700000

USD

CY2019

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

22900000

USD

CY2018

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

9700000

USD

CY2017

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

13800000

USD

CY2019

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

32600000

USD

CY2018

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

15200000

USD

CY2017

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

4400000

USD

CY2019

us-gaap

Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net

OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet

25300000

USD

CY2018

us-gaap

Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net

OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet

17500000

USD

CY2017

us-gaap

Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net

OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet

8100000

USD

CY2019

unm

Other Investments Gross Realized Gains

OtherInvestmentsGrossRealizedGains

4600000

USD

CY2018

unm

Other Investments Gross Realized Gains

OtherInvestmentsGrossRealizedGains

500000

USD

CY2017

unm

Other Investments Gross Realized Gains

OtherInvestmentsGrossRealizedGains

9400000

USD

CY2019

unm

Other Investments Gross Realized Losses

OtherInvestmentsGrossRealizedLosses

300000

USD

CY2018

unm

Other Investments Gross Realized Losses

OtherInvestmentsGrossRealizedLosses

0

USD

CY2017

unm

Other Investments Gross Realized Losses

OtherInvestmentsGrossRealizedLosses

200000

USD

CY2019

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

0

USD

CY2018

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

1400000

USD

CY2017

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

900000

USD

CY2019

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet

8300000

USD

CY2018

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet

-15200000

USD

CY2017

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet

30800000

USD

CY2019

us-gaap

Derivative Gain Loss On Derivative Net

DerivativeGainLossOnDerivativeNet

-100000

USD

CY2018

us-gaap

Derivative Gain Loss On Derivative Net

DerivativeGainLossOnDerivativeNet

300000

USD

CY2017

us-gaap

Derivative Gain Loss On Derivative Net

DerivativeGainLossOnDerivativeNet

-100000

USD

CY2019

us-gaap

Foreign Currency Transaction Gain Loss Before Tax

ForeignCurrencyTransactionGainLossBeforeTax

-700000

USD

CY2018

us-gaap

Foreign Currency Transaction Gain Loss Before Tax

ForeignCurrencyTransactionGainLossBeforeTax

-700000

USD

CY2017

us-gaap

Foreign Currency Transaction Gain Loss Before Tax

ForeignCurrencyTransactionGainLossBeforeTax

0

USD

CY2019

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-23200000

USD

CY2018

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-39500000

USD

CY2017

us-gaap

Gain Loss On Investments

GainLossOnInvestments

40300000

USD

CY2019Q4

us-gaap

Derivative Net Liability Position Aggregate Fair Value

DerivativeNetLiabilityPositionAggregateFairValue

34600000

USD

CY2018Q4

us-gaap

Derivative Net Liability Position Aggregate Fair Value

DerivativeNetLiabilityPositionAggregateFairValue

38000000.0

USD

CY2016Q4

us-gaap

Derivative Notional Amount

DerivativeNotionalAmount

1052000000.0

USD

CY2017

unm

Notional Amount Of Derivatives Additions

NotionalAmountOfDerivativesAdditions

92100000

USD

CY2017

unm

Notional Amount Of Derivatives Terminations

NotionalAmountOfDerivativesTerminations

239600000

USD

CY2017Q4

us-gaap

Derivative Notional Amount

DerivativeNotionalAmount

904500000

USD

CY2018

unm

Notional Amount Of Derivatives Additions

NotionalAmountOfDerivativesAdditions

136500000

USD

CY2018

unm

Notional Amount Of Derivatives Terminations

NotionalAmountOfDerivativesTerminations

241800000

USD

CY2018Q4

us-gaap

Derivative Notional Amount

DerivativeNotionalAmount

799200000

USD

CY2019

unm

Notional Amount Of Derivatives Additions

NotionalAmountOfDerivativesAdditions

553700000

USD

CY2019

unm

Notional Amount Of Derivatives Terminations

NotionalAmountOfDerivativesTerminations

471500000

USD

CY2019

unm

Notional Amount Of Derivatives Foreign Currency

NotionalAmountOfDerivativesForeignCurrency

0

USD

CY2019Q4

us-gaap

Derivative Notional Amount

DerivativeNotionalAmount

881400000

USD

CY2019

us-gaap

Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months

CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

76200000

USD

CY2019

us-gaap

Gain Loss From Components Excluded From Assessment Of Fair Value Hedge Effectiveness Net

GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet

2000000.0

USD

CY2018

us-gaap

Gain Loss From Components Excluded From Assessment Of Fair Value Hedge Effectiveness Net

GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet

2500000

USD

CY2018

us-gaap

Gain Loss From Hedged Firm Commitment Not Qualifying As Fair Value Hedge Net

GainLossFromHedgedFirmCommitmentNotQualifyingAsFairValueHedgeNet

0

USD

CY2019

us-gaap

Gain Loss From Hedged Firm Commitment Not Qualifying As Fair Value Hedge Net

GainLossFromHedgedFirmCommitmentNotQualifyingAsFairValueHedgeNet

0

USD

CY2019

us-gaap

Net Investment Income

NetInvestmentIncome

2435300000

USD

CY2019

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-23200000

USD

CY2019

us-gaap

Interest And Debt Expense

InterestAndDebtExpense

177400000

USD

CY2017

us-gaap

Other Comprehensive Income Loss Before Reclassifications Net Of Tax

OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

205600000

USD

CY2017

us-gaap

Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax

ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

27100000

USD

CY2017

us-gaap

Other Comprehensive Income Loss Net Of Tax

OtherComprehensiveIncomeLossNetOfTax

178500000

USD

CY2017Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

127500000

USD

CY2018

us-gaap

Net Investment Income

NetInvestmentIncome

2453700000

USD

CY2018

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-39500000

USD

CY2018

us-gaap

Interest And Debt Expense

InterestAndDebtExpense

167300000

USD

CY2017

us-gaap

Net Investment Income

NetInvestmentIncome

2451700000

USD

CY2017

us-gaap

Gain Loss On Investments

GainLossOnInvestments

40300000

USD

CY2017

us-gaap

Interest And Debt Expense

InterestAndDebtExpense

159900000

USD

CY2016Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

-51000000.0

USD

CY2018

us-gaap

Other Comprehensive Income Loss Before Reclassifications Net Of Tax

OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

-910600000

USD

CY2018

us-gaap

Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax

ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

13600000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Net Of Tax

OtherComprehensiveIncomeLossNetOfTax

-924200000

USD

CY2018Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

-814200000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Before Reclassifications Net Of Tax

OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

865500000

USD

CY2019

us-gaap

Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax

ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

14000000.0

USD

CY2019

us-gaap

Other Comprehensive Income Loss Net Of Tax

OtherComprehensiveIncomeLossNetOfTax

851500000

USD

CY2019Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

37300000

USD

CY2019

us-gaap

Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense

ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense

<div>Changes in the liability for unpaid claims and claim adjustment expenses are as follows: </div><div> </div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:100.000%;"><tr><td style="width:1.0%;"/><td style="width:61.768%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:9.594%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.524%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.594%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.524%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.596%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">2019</td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-bottom:1pt solid #000000;padding-left:1pt;padding-right:1pt;">2018</td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-bottom:1pt solid #000000;padding-left:1pt;padding-right:1pt;">2017</td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="15" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;">(in millions of dollars)</td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Balance at January 1</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">23,149.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">23,222.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">23,249.5 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"> Less Reinsurance Recoverable</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">2,227.3 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">2,182.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">2,163.6 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Net Balance at January 1</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:0%;">20,921.7 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:0%;">21,040.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:0%;">21,085.9 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Incurred Related to</td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"> Current Year</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">6,113.2 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">5,832.3 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">5,422.9 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"> Prior Years</td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"> Interest</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">1,036.5 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">1,049.8 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">1,089.7 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"> All Other Incurred</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(274.1)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(106.2)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(158.2)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"> Foreign Currency</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">76.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(110.7)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">167.5 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Total Incurred</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:0%;">6,951.6 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:0%;">6,665.2 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:0%;">6,521.9 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Paid Related to</td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"> Current Year</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(2,532.4)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(2,354.7)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(2,156.9)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"> Prior Years</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(4,511.0)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(4,428.8)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(4,410.9)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Total Paid</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:0%;">(7,043.4)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:0%;">(6,783.5)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:0%;">(6,567.8)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="height:14pt;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Net Balance at December 31</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">20,829.9 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">20,921.7 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">21,040.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"> Plus Reinsurance Recoverable</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">2,246.8 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">2,227.3 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">2,182.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Balance at December 31</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:0%;">23,076.7 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:0%;">23,149.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:0%;">23,222.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"> </td></tr></table></div>

CY2018Q4

us-gaap

Liability For Claims And Claims Adjustment Expense

LiabilityForClaimsAndClaimsAdjustmentExpense

23149000000.0

USD

CY2017Q4

us-gaap

Liability For Claims And Claims Adjustment Expense

LiabilityForClaimsAndClaimsAdjustmentExpense

23222000000.0

USD

CY2016Q4

us-gaap

Liability For Claims And Claims Adjustment Expense

LiabilityForClaimsAndClaimsAdjustmentExpense

23249500000

USD

CY2018Q4

us-gaap

Reinsurance Receivables Incurred But Not Reported Claims

ReinsuranceReceivablesIncurredButNotReportedClaims

2227300000

USD

CY2017Q4

us-gaap

Reinsurance Receivables Incurred But Not Reported Claims

ReinsuranceReceivablesIncurredButNotReportedClaims

2182000000.0

USD

CY2016Q4

us-gaap

Reinsurance Receivables Incurred But Not Reported Claims

ReinsuranceReceivablesIncurredButNotReportedClaims

2163600000

USD

CY2018Q4

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Net

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet

20921700000

USD

CY2018Q4

us-gaap

Reinsurance Receivables Incurred But Not Reported Claims

ReinsuranceReceivablesIncurredButNotReportedClaims

2227300000

USD

CY2017Q4

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Net

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet

21040000000.0

USD

CY2016Q4

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Net

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet

21085900000

USD

CY2019

us-gaap

Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense

SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense

6113200000

USD

CY2018

us-gaap

Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense

SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense

5832300000

USD

CY2017

us-gaap

Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense

SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense

5422900000

USD

CY2019

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1

2532400000

USD

CY2018

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1

2354700000

USD

CY2017

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1

2156900000

USD

CY2019

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1

4511000000.0

USD

CY2018

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1

4428800000

USD

CY2017

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1

4410900000

USD

CY2019

us-gaap

Payments For Losses And Loss Adjustment Expense

PaymentsForLossesAndLossAdjustmentExpense

7043400000

USD

CY2018

us-gaap

Payments For Losses And Loss Adjustment Expense

PaymentsForLossesAndLossAdjustmentExpense

6783500000

USD

CY2017

us-gaap

Payments For Losses And Loss Adjustment Expense

PaymentsForLossesAndLossAdjustmentExpense

6567800000

USD

CY2019Q4

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Net

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet

20829900000

USD

CY2018Q4

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Net

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet

20921700000

USD

CY2017Q4

us-gaap

Liability For Unpaid Claims And Claims Adjustment Expense Net

LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet

21040000000.0

USD

CY2019Q4

us-gaap

Reinsurance Receivables Incurred But Not Reported Claims

ReinsuranceReceivablesIncurredButNotReportedClaims

2246800000

USD

CY2017Q4

us-gaap

Reinsurance Receivables Incurred But Not Reported Claims

ReinsuranceReceivablesIncurredButNotReportedClaims

2182000000.0

USD

CY2019Q4

us-gaap

Liability For Claims And Claims Adjustment Expense

LiabilityForClaimsAndClaimsAdjustmentExpense

23076700000

USD

CY2018Q4

us-gaap

Liability For Claims And Claims Adjustment Expense

LiabilityForClaimsAndClaimsAdjustmentExpense

23149000000.0

USD

CY2017Q4

us-gaap

Liability For Claims And Claims Adjustment Expense

LiabilityForClaimsAndClaimsAdjustmentExpense

23222000000.0

USD

CY2019

unm

Longterm Care Reserve Increase Before Tax

LongtermCareReserveIncreaseBeforeTax

750800000

USD

CY2019

unm

Longterm Care Reserve Increase After Tax

LongtermCareReserveIncreaseAfterTax

593100000

USD

CY2019

unm

Longterm Care Reserve Increase Before Tax

LongtermCareReserveIncreaseBeforeTax

750800000

USD

CY2017

unm

Unclaimed Death Benefit Reserve Increase Before Taxes

UnclaimedDeathBenefitReserveIncreaseBeforeTaxes

39000000.0

USD

CY2019Q4

unm

Policy And Contract Benefits

PolicyAndContractBenefits

1745500000

USD

CY2018Q4

unm

Policy And Contract Benefits

PolicyAndContractBenefits

1695700000

USD

CY2017Q4

unm

Policy And Contract Benefits

PolicyAndContractBenefits

1605200000

USD

CY2019Q4

us-gaap

Liability For Future Policy Benefits And Unpaid Claims And Claims Adjustment Expense

LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense

47780100000

USD

CY2018Q4

us-gaap

Liability For Future Policy Benefits And Unpaid Claims And Claims Adjustment Expense

LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense

44841900000

USD

CY2017Q4

us-gaap

Liability For Future Policy Benefits And Unpaid Claims And Claims Adjustment Expense

LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense

45601600000

USD

CY2019Q4

us-gaap

Liability For Future Policy Benefits

LiabilityForFuturePolicyBenefits

49525600000

USD

CY2018Q4

us-gaap

Liability For Future Policy Benefits

LiabilityForFuturePolicyBenefits

46537600000

USD

CY2017Q4

us-gaap

Liability For Future Policy Benefits

LiabilityForFuturePolicyBenefits

47206800000

USD

CY2019Q4

unm

Life Reserves For Future Policy And Contract Benefits

LifeReservesForFuturePolicyAndContractBenefits

8435700000

USD

CY2018Q4

unm

Life Reserves For Future Policy And Contract Benefits

LifeReservesForFuturePolicyAndContractBenefits

8330900000

USD

CY2017Q4

unm

Life Reserves For Future Policy And Contract Benefits

LifeReservesForFuturePolicyAndContractBenefits

8231300000

USD

CY2019Q4

unm

Accident And Health Active Life Reserves

AccidentAndHealthActiveLifeReserves

12210100000

USD

CY2018Q4

unm

Accident And Health Active Life Reserves

AccidentAndHealthActiveLifeReserves

11837400000

USD

CY2017Q4

unm

Accident And Health Active Life Reserves

AccidentAndHealthActiveLifeReserves

10658800000

USD

CY2019Q4

unm

Unrealized Adjustment To Reserves For Future Policy And Contract Benefits

UnrealizedAdjustmentToReservesForFuturePolicyAndContractBenefits

5803100000

USD

CY2018Q4

unm

Unrealized Adjustment To Reserves For Future Policy And Contract Benefits

UnrealizedAdjustmentToReservesForFuturePolicyAndContractBenefits

3220300000

USD

CY2017Q4

unm

Unrealized Adjustment To Reserves For Future Policy And Contract Benefits

UnrealizedAdjustmentToReservesForFuturePolicyAndContractBenefits

5094700000

USD

CY2019Q4

us-gaap

Liability For Claims And Claims Adjustment Expense

LiabilityForClaimsAndClaimsAdjustmentExpense

23076700000

USD

CY2018Q4

us-gaap

Liability For Claims And Claims Adjustment Expense

LiabilityForClaimsAndClaimsAdjustmentExpense

23149000000.0

USD

CY2017Q4

us-gaap

Liability For Claims And Claims Adjustment Expense

LiabilityForClaimsAndClaimsAdjustmentExpense

23222000000.0

USD

CY2019

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

281800000

USD

CY2017

unm

Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act Transition Taxon Accumulated Foreign Earnings Percent

EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActTransitionTaxonAccumulatedForeignEarningsPercent

0.047

CY2019

us-gaap

Effective Income Tax Rate Reconciliation Tax Exempt Income

EffectiveIncomeTaxRateReconciliationTaxExemptIncome

-0.005

CY2018

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

104400000

USD

CY2017

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

409800000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Available For Sale Securities Tax

OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

757000000.0

USD

CY2018

us-gaap

Other Comprehensive Income Loss Available For Sale Securities Tax

OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

-614200000

USD

CY2017

us-gaap

Other Comprehensive Income Loss Available For Sale Securities Tax

OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

328100000

USD

CY2019

unm

Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense

ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense

-511700000

USD

CY2018

unm

Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense

ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense

371700000

USD

CY2017

unm

Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense

ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense

-245000000.0

USD

CY2019

unm

Other Comprehensive Income Loss Net Gain On Hedges Adjustment Tax

OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax

-17000000.0

USD

CY2018

unm

Other Comprehensive Income Loss Net Gain On Hedges Adjustment Tax

OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax

-8200000

USD

CY2017

unm

Other Comprehensive Income Loss Net Gain On Hedges Adjustment Tax

OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax

-24400000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax

OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

-200000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax

OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

600000

USD

CY2017

us-gaap

Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax

OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

0

USD

CY2019

us-gaap

Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax

OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

9300000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax

OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

-17000000.0

USD

CY2019

us-gaap

Effective Income Tax Rate Reconciliation Tax Credits

EffectiveIncomeTaxRateReconciliationTaxCredits

0.011

CY2018

us-gaap

Effective Income Tax Rate Reconciliation Tax Exempt Income

EffectiveIncomeTaxRateReconciliationTaxExemptIncome

-0.013

CY2017

us-gaap

Effective Income Tax Rate Reconciliation Tax Exempt Income

EffectiveIncomeTaxRateReconciliationTaxExemptIncome

-0.008

CY2017

us-gaap

Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax

OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

8300000

USD

CY2019

us-gaap

Income Tax Expense Benefit Intraperiod Tax Allocation

IncomeTaxExpenseBenefitIntraperiodTaxAllocation

501000000.0

USD

CY2018

us-gaap

Income Tax Expense Benefit Intraperiod Tax Allocation

IncomeTaxExpenseBenefitIntraperiodTaxAllocation

-129900000

USD

CY2017

us-gaap

Income Tax Expense Benefit Intraperiod Tax Allocation

IncomeTaxExpenseBenefitIntraperiodTaxAllocation

460200000

USD

CY2019

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.210

CY2018

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.210

CY2017

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.350

CY2019

unm

Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act Percent

EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActPercent

0

CY2018

unm

Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act Percent

EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActPercent

0

CY2017

unm

Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act Percent

EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActPercent

-0.070

CY2019

unm

Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act Transition Taxon Accumulated Foreign Earnings Percent

EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActTransitionTaxonAccumulatedForeignEarningsPercent

0

CY2018

unm

Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Act Transition Taxon Accumulated Foreign Earnings Percent

EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActTransitionTaxonAccumulatedForeignEarningsPercent

0.018

CY2018Q4

us-gaap

Deferred Tax Assets Other

DeferredTaxAssetsOther

17700000

USD

CY2018

us-gaap

Effective Income Tax Rate Reconciliation Tax Credits

EffectiveIncomeTaxRateReconciliationTaxCredits

0.024

CY2017

us-gaap

Effective Income Tax Rate Reconciliation Tax Credits

EffectiveIncomeTaxRateReconciliationTaxCredits

0.015

CY2019

unm

Effective Income Tax Rate Reconciliation Policyholder Reserves Percent

EffectiveIncomeTaxRateReconciliationPolicyholderReservesPercent

0

CY2018

unm

Effective Income Tax Rate Reconciliation Policyholder Reserves Percent

EffectiveIncomeTaxRateReconciliationPolicyholderReservesPercent

-0.024

CY2017

unm

Effective Income Tax Rate Reconciliation Policyholder Reserves Percent

EffectiveIncomeTaxRateReconciliationPolicyholderReservesPercent

0

CY2019

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

EffectiveIncomeTaxRateReconciliationOtherAdjustments

0.010

CY2018

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

EffectiveIncomeTaxRateReconciliationOtherAdjustments

-0.001

CY2017

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

EffectiveIncomeTaxRateReconciliationOtherAdjustments

-0.012

CY2019

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.204

CY2018

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.166

CY2017

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.292

CY2019Q4

us-gaap

Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross

DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross

1154600000

USD

CY2018Q4

us-gaap

Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross

DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross

668500000

USD

CY2019Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits

DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

201600000

USD

CY2018Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits

DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

179500000

USD

CY2019Q4

us-gaap

Deferred Tax Assets Other

DeferredTaxAssetsOther

19400000

USD

CY2019Q4

us-gaap

Deferred Income Tax Liabilities

DeferredIncomeTaxLiabilities

1442700000

USD

CY2019Q4

us-gaap

Deferred Tax Assets Gross

DeferredTaxAssetsGross

1375600000

USD

CY2018Q4

us-gaap

Deferred Tax Assets Gross

DeferredTaxAssetsGross

865700000

USD

CY2019Q4

us-gaap

Deferred Tax Assets Valuation Allowance

DeferredTaxAssetsValuationAllowance

28300000

USD

CY2018Q4

us-gaap

Deferred Tax Assets Valuation Allowance

DeferredTaxAssetsValuationAllowance

18400000

USD

CY2019Q4

us-gaap

Deferred Tax Assets Net

DeferredTaxAssetsNet

1347300000

USD

CY2018Q4

us-gaap

Deferred Tax Assets Net

DeferredTaxAssetsNet

847300000

USD

CY2019Q4

us-gaap

Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost

DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost

115600000

USD

CY2018Q4

us-gaap

Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost

DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost

129700000

USD

CY2019Q4

us-gaap

Deferred Tax Liabilities Property Plant And Equipment

DeferredTaxLiabilitiesPropertyPlantAndEquipment

58500000

USD

CY2018Q4

us-gaap

Deferred Tax Liabilities Property Plant And Equipment

DeferredTaxLiabilitiesPropertyPlantAndEquipment

56200000

USD

CY2019Q4

us-gaap

Deferred Tax Liabilities Investments

DeferredTaxLiabilitiesInvestments

1213700000

USD

CY2018Q4

us-gaap

Deferred Tax Liabilities Investments

DeferredTaxLiabilitiesInvestments

493400000

USD

CY2019Q4

us-gaap

Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets

DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

21400000

USD

CY2018Q4

us-gaap

Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets

DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

24000000.0

USD

CY2019Q4

us-gaap

Deferred Tax Liabilities Other

DeferredTaxLiabilitiesOther

33500000

USD

CY2018Q4

us-gaap

Deferred Tax Liabilities Other

DeferredTaxLiabilitiesOther

34100000

USD

CY2018Q4

us-gaap

Deferred Income Tax Liabilities

DeferredIncomeTaxLiabilities

737400000

USD

CY2019Q4

us-gaap

Deferred Tax Liabilities

DeferredTaxLiabilities

95400000

USD

CY2018Q4

us-gaap

Deferred Income Tax Assets Net

DeferredIncomeTaxAssetsNet

109900000

USD

CY2019

us-gaap

Income Loss From Continuing Operations Before Income Taxes Domestic

IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic

1289500000

USD

CY2018

us-gaap

Income Loss From Continuing Operations Before Income Taxes Domestic

IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic

492600000

USD

CY2017

us-gaap

Income Loss From Continuing Operations Before Income Taxes Domestic

IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic

1289000000.0

USD

CY2019

us-gaap

Income Loss From Continuing Operations Before Income Taxes Foreign

IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign

92600000

USD

CY2018

us-gaap

Income Loss From Continuing Operations Before Income Taxes Foreign

IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign

135200000

USD

CY2017

us-gaap

Income Loss From Continuing Operations Before Income Taxes Foreign

IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign

115000000.0

USD

CY2019

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

1382100000

USD

CY2018

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

627800000

USD

CY2017

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

1404000000.0

USD

CY2019

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

273600000

USD

CY2018

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

194600000

USD

CY2017

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

374900000

USD

CY2019

us-gaap

Current State And Local Tax Expense Benefit

CurrentStateAndLocalTaxExpenseBenefit

1300000

USD

CY2018

us-gaap

Current State And Local Tax Expense Benefit

CurrentStateAndLocalTaxExpenseBenefit

-600000

USD

CY2017

us-gaap

Current State And Local Tax Expense Benefit

CurrentStateAndLocalTaxExpenseBenefit

400000

USD

CY2019

us-gaap

Current Foreign Tax Expense Benefit

CurrentForeignTaxExpenseBenefit

-100000

USD

CY2018

us-gaap

Current Foreign Tax Expense Benefit

CurrentForeignTaxExpenseBenefit

33400000

USD

CY2017

us-gaap

Current Foreign Tax Expense Benefit

CurrentForeignTaxExpenseBenefit

26000000.0

USD

CY2019

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

274800000

USD

CY2018

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

227400000

USD

CY2017

us-gaap

Current Income Tax Expense Benefit

CurrentIncomeTaxExpenseBenefit

401300000

USD

CY2019

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

-9500000

USD

CY2018

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

-114600000

USD

CY2017

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

14200000

USD

CY2019

us-gaap

Deferred State And Local Income Tax Expense Benefit

DeferredStateAndLocalIncomeTaxExpenseBenefit

-100000

USD

CY2018

us-gaap

Deferred State And Local Income Tax Expense Benefit

DeferredStateAndLocalIncomeTaxExpenseBenefit

-200000

USD

CY2017

us-gaap

Deferred State And Local Income Tax Expense Benefit

DeferredStateAndLocalIncomeTaxExpenseBenefit

-300000

USD

CY2019

us-gaap

Deferred Foreign Income Tax Expense Benefit

DeferredForeignIncomeTaxExpenseBenefit

16600000

USD

CY2018

us-gaap

Deferred Foreign Income Tax Expense Benefit

DeferredForeignIncomeTaxExpenseBenefit

-8200000

USD

CY2017

us-gaap

Deferred Foreign Income Tax Expense Benefit

DeferredForeignIncomeTaxExpenseBenefit

-5400000

USD

CY2019

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

7000000.0

USD

CY2018

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

-123000000.0

USD

CY2017

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

8500000

USD

CY2019

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

281800000

USD

CY2018

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

104400000

USD

CY2017

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

409800000

USD

CY2017

us-gaap

Tax Cuts And Jobs Act Of2017 Change In Tax Rate Deferred Tax Liability Income Tax Benefit

TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxLiabilityIncomeTaxBenefit

97900000

USD

CY2017

us-gaap

Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Income Tax Expense

TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsIncomeTaxExpense

66400000

USD

CY2018

us-gaap

Tax Cuts And Jobs Act Of2017 Measurement Period Adjustment Income Tax Expense Benefit

TaxCutsAndJobsActOf2017MeasurementPeriodAdjustmentIncomeTaxExpenseBenefit

11500000

USD

CY2019Q4

unm

Tax Cutsand Jobs Actof2017 Complete Accounting Undistributed Accumulated Earningsof Foreign Subsidiaryforwhich Unrecognized Deferred Tax Liabilities Have Not Been Recorded

TaxCutsandJobsActof2017CompleteAccountingUndistributedAccumulatedEarningsofForeignSubsidiaryforwhichUnrecognizedDeferredTaxLiabilitiesHaveNotBeenRecorded

700000000

USD

CY2018Q4

us-gaap

Unrecognized Tax Benefits

UnrecognizedTaxBenefits

262200000

USD

CY2017Q4

us-gaap

Unrecognized Tax Benefits

UnrecognizedTaxBenefits

1400000

USD

CY2016Q4

us-gaap

Unrecognized Tax Benefits

UnrecognizedTaxBenefits

1500000

USD

CY2019

us-gaap

Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions

UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions

-21100000

USD

CY2018

us-gaap

Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions

UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions

261500000

USD

CY2017

us-gaap

Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions

UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions

300000

USD

CY2018Q4

us-gaap

Unrecognized Tax Benefits That Would Impact Effective Tax Rate

UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

114000000.0

USD

CY2019

us-gaap

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions

0

USD

CY2018

us-gaap

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions

0

USD

CY2017

us-gaap

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions

0

USD

CY2019

us-gaap

Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities

UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities

0

USD

CY2018

us-gaap

Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities

UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities

0

USD

CY2017

us-gaap

Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities

UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities

0

USD

CY2019

us-gaap

Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations

UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations

100000

USD

CY2018

us-gaap

Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations

UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations

700000

USD

CY2017

us-gaap

Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations

UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations

400000

USD

CY2019Q4

us-gaap

Unrecognized Tax Benefits

UnrecognizedTaxBenefits

241000000.0

USD

CY2018Q4

us-gaap

Unrecognized Tax Benefits

UnrecognizedTaxBenefits

262200000

USD

CY2017Q4

us-gaap

Unrecognized Tax Benefits

UnrecognizedTaxBenefits

1400000

USD

CY2019Q4

unm

Tax Attributable To Temporary Items Included Above

TaxAttributableToTemporaryItemsIncludedAbove

127100000

USD

CY2018Q4

unm

Tax Attributable To Temporary Items Included Above

TaxAttributableToTemporaryItemsIncludedAbove

148200000

USD

CY2017Q4

unm

Tax Attributable To Temporary Items Included Above

TaxAttributableToTemporaryItemsIncludedAbove

0

USD

CY2019Q4

us-gaap

Unrecognized Tax Benefits That Would Impact Effective Tax Rate

UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

113900000

USD

CY2017Q4

us-gaap

Unrecognized Tax Benefits That Would Impact Effective Tax Rate

UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

1400000

USD

CY2019

us-gaap

Unrecognized Tax Benefits Interest On Income Taxes Expense

UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense

12800000

USD

CY2019Q4

us-gaap

Deferred Tax Assets Valuation Allowance

DeferredTaxAssetsValuationAllowance

28300000

USD

CY2018Q4

us-gaap

Deferred Tax Assets Valuation Allowance

DeferredTaxAssetsValuationAllowance

18400000

USD

CY2018

us-gaap

Valuation Allowance Deferred Tax Asset Change In Amount

ValuationAllowanceDeferredTaxAssetChangeInAmount

-1900000

USD

CY2019

us-gaap

Valuation Allowance Deferred Tax Asset Change In Amount

ValuationAllowanceDeferredTaxAssetChangeInAmount

9900000

USD

CY2019

us-gaap

Income Taxes Paid Net

IncomeTaxesPaidNet

35100000

USD

CY2018

us-gaap

Income Taxes Paid Net

IncomeTaxesPaidNet

139700000

USD

CY2017

us-gaap

Income Taxes Paid Net

IncomeTaxesPaidNet

377000000.0

USD

CY2019Q4

us-gaap

Debt Instrument Unamortized Discount Premium Net

DebtInstrumentUnamortizedDiscountPremiumNet

-8400000

USD

CY2018Q4

us-gaap

Debt Instrument Unamortized Discount Premium Net

DebtInstrumentUnamortizedDiscountPremiumNet

-9600000

USD

CY2019Q4

us-gaap

Deferred Finance Costs Noncurrent Net

DeferredFinanceCostsNoncurrentNet

35400000

USD

CY2018Q4

us-gaap

Deferred Finance Costs Noncurrent Net

DeferredFinanceCostsNoncurrentNet

30800000

USD

CY2019Q4

us-gaap

Long Term Debt Noncurrent

LongTermDebtNoncurrent

2926900000

USD

CY2018Q4

us-gaap

Long Term Debt Noncurrent

LongTermDebtNoncurrent

2971300000

USD

CY2019Q4

us-gaap

Debt Current

DebtCurrent

400000000.0

USD

CY2019Q4

us-gaap

Deferred Finance Costs Current Net

DeferredFinanceCostsCurrentNet

300000

USD

CY2018Q4

us-gaap

Deferred Finance Costs Current Net

DeferredFinanceCostsCurrentNet

0

USD

CY2019Q4

us-gaap

Long Term Debt Current

LongTermDebtCurrent

399700000

USD

CY2018Q4

us-gaap

Long Term Debt Current

LongTermDebtCurrent

0

USD

CY2019Q4

us-gaap

Long Term Debt

LongTermDebt

3326600000

USD

CY2018Q4

us-gaap

Long Term Debt

LongTermDebt

2971300000

USD

CY2019Q4

us-gaap

Long Term Debt Maturities Repayments Of Principal In Next Twelve Months

LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

400000000.0

USD

CY2019Q4

us-gaap

Long Term Debt Maturities Repayments Of Principal In Year Four

LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

2000000.0

USD

CY2019Q4

us-gaap

Long Term Debt Maturities Repayments Of Principal After Year Five

LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

2602500000

USD

CY2019Q4

unm

Unum Group Percentage Ownershipof Provident Financing Trust

UnumGroupPercentageOwnershipofProvidentFinancingTrust

1

Rate

CY2019

unm

Cost Related To Early Retirement Of Debt

CostRelatedToEarlyRetirementOfDebt

27300000

USD

CY2019

us-gaap

Interest Paid

InterestPaid

172900000

USD

CY2018

us-gaap

Interest Paid

InterestPaid

167300000

USD

CY2017

us-gaap

Interest Paid

InterestPaid

154400000

USD

CY2019Q4

us-gaap

Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year

DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear

0.0650

Rate

CY2018Q4

us-gaap

Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year

DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear

0.0700

Rate

CY2019Q4

us-gaap

Defined Benefit Plan Ultimate Health Care Cost Trend Rate1

DefinedBenefitPlanUltimateHealthCareCostTrendRate1

0.0500

Rate

CY2019

us-gaap

Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate

DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate

2024

CY2019

us-gaap

Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation

DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation

500000

USD

CY2019

us-gaap

Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1

DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1

500000

USD

CY2019Q4

us-gaap

Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year

DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear

-19800000

USD

CY2019Q4

us-gaap

Defined Benefit Plan Expected Amortization Of Prior Service Cost Credit Next Fiscal Year

DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear

-200000

USD

CY2019

us-gaap

Net Income Loss

NetIncomeLoss

1100300000

USD

CY2018

us-gaap

Net Income Loss

NetIncomeLoss

523400000

USD

CY2017

us-gaap

Net Income Loss

NetIncomeLoss

994200000

USD

CY2019

us-gaap

Weighted Average Number Of Shares Outstanding Basic

WeightedAverageNumberOfSharesOutstandingBasic

209728900

shares

CY2018

us-gaap

Weighted Average Number Of Shares Outstanding Basic

WeightedAverageNumberOfSharesOutstandingBasic

219635600

shares

CY2017

us-gaap

Weighted Average Number Of Shares Outstanding Basic

WeightedAverageNumberOfSharesOutstandingBasic

226492400

shares

CY2019

us-gaap

Weighted Average Number Diluted Shares Outstanding Adjustment

WeightedAverageNumberDilutedSharesOutstandingAdjustment

125500

shares

CY2018

us-gaap

Weighted Average Number Diluted Shares Outstanding Adjustment

WeightedAverageNumberDilutedSharesOutstandingAdjustment

423000.0

shares

CY2017

us-gaap

Weighted Average Number Diluted Shares Outstanding Adjustment

WeightedAverageNumberDilutedSharesOutstandingAdjustment

842800

shares

CY2019

us-gaap

Weighted Average Number Of Diluted Shares Outstanding

WeightedAverageNumberOfDilutedSharesOutstanding

209854400

shares

CY2018

us-gaap

Weighted Average Number Of Diluted Shares Outstanding

WeightedAverageNumberOfDilutedSharesOutstanding

220058600

shares

CY2017

us-gaap

Weighted Average Number Of Diluted Shares Outstanding

WeightedAverageNumberOfDilutedSharesOutstanding

227335200

shares

CY2019

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

5.25

CY2018

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

2.38

CY2017

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

4.39

CY2019

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

5.24

CY2018

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

2.38

CY2017

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

4.37

CY2019

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

1100000

shares

CY2018

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

600000

shares

CY2017

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

300000

shares

CY2019

us-gaap

Stock Repurchase Program Expiration Date

StockRepurchaseProgramExpirationDate

2020-11-23

CY2019

us-gaap

Treasury Stock Shares Acquired

TreasuryStockSharesAcquired

12300000

shares

CY2018

us-gaap

Treasury Stock Shares Acquired

TreasuryStockSharesAcquired

8700000

shares

CY2017

us-gaap

Treasury Stock Shares Acquired

TreasuryStockSharesAcquired

8200000

shares

CY2019

unm

Shares Repurchased Cost Commissions

SharesRepurchasedCostCommissions

400000

USD

CY2018

unm

Shares Repurchased Cost Commissions

SharesRepurchasedCostCommissions

700000

USD

CY2017

unm

Shares Repurchased Cost Commissions

SharesRepurchasedCostCommissions

300000

USD

CY2019Q4

us-gaap

Preferred Stock Shares Authorized

PreferredStockSharesAuthorized

25000000.0

shares

CY2019Q4

us-gaap

Preferred Stock Par Or Stated Value Per Share

PreferredStockParOrStatedValuePerShare

0.10

CY2019Q4

us-gaap

Preferred Stock Shares Issued

PreferredStockSharesIssued

0

shares

CY2019

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

300000

USD

CY2018

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

700000

USD

CY2017

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

10000000.0

USD

CY2017

us-gaap

Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1

SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1

0

USD

CY2018

us-gaap

Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1

SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1

0

USD

CY2019

us-gaap

Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1

SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1

0

USD

CY2018

us-gaap

Reinsurance Effect On Claims And Benefits Incurred Amount Ceded

ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded

667200000

USD

CY2017

us-gaap

Reinsurance Effect On Claims And Benefits Incurred Amount Ceded

ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded

655400000

USD

CY2019

us-gaap

Allocated Share Based Compensation Expense

AllocatedShareBasedCompensationExpense

26600000

USD

CY2018

us-gaap

Allocated Share Based Compensation Expense

AllocatedShareBasedCompensationExpense

26300000

USD

CY2017

us-gaap

Allocated Share Based Compensation Expense

AllocatedShareBasedCompensationExpense

29500000

USD

CY2019

us-gaap

Allocated Share Based Compensation Expense Net Of Tax

AllocatedShareBasedCompensationExpenseNetOfTax

22700000

USD

CY2018

us-gaap

Allocated Share Based Compensation Expense Net Of Tax

AllocatedShareBasedCompensationExpenseNetOfTax

20900000

USD

CY2017

us-gaap

Allocated Share Based Compensation Expense Net Of Tax

AllocatedShareBasedCompensationExpenseNetOfTax

19500000

USD

CY2019

us-gaap

Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options

ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

6100000

USD

CY2018

us-gaap

Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options

ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

4600000

USD

CY2017

us-gaap

Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options

ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

10800000

USD

CY2019Q4

unm

Number Of Companies That Make Up Majority Of Reinsurance Recoverable

NumberOfCompaniesThatMakeUpMajorityOfReinsuranceRecoverable

13

CY2019

us-gaap

Direct Premiums Earned

DirectPremiumsEarned

9576300000

USD

CY2018

us-gaap

Direct Premiums Earned

DirectPremiumsEarned

9171100000

USD

CY2017

us-gaap

Direct Premiums Earned

DirectPremiumsEarned

8677200000

USD

CY2019

us-gaap

Assumed Premiums Earned

AssumedPremiumsEarned

116500000

USD

CY2018

us-gaap

Assumed Premiums Earned

AssumedPremiumsEarned

142600000

USD

CY2017

us-gaap

Assumed Premiums Earned

AssumedPremiumsEarned

230000000.0

USD

CY2019

us-gaap

Ceded Premiums Earned

CededPremiumsEarned

327200000

USD

CY2018

us-gaap

Ceded Premiums Earned

CededPremiumsEarned

327600000

USD

CY2017

us-gaap

Ceded Premiums Earned

CededPremiumsEarned

310100000

USD

CY2019

us-gaap

Premiums Earned Net

PremiumsEarnedNet

9365600000

USD

CY2018

us-gaap

Premiums Earned Net

PremiumsEarnedNet

8986100000

USD

CY2017

us-gaap

Premiums Earned Net

PremiumsEarnedNet

8597100000

USD

CY2019

us-gaap

Reinsurance Effect On Claims And Benefits Incurred Amount Ceded

ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded

650100000

USD

CY2019

us-gaap

Number Of Operating Segments

NumberOfOperatingSegments

3

Integer

CY2019

us-gaap

Deferred Policy Acquisition Costs Text Block1

DeferredPolicyAcquisitionCostsTextBlock1

<table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:100.000%;"><tr><td style="width:1.0%;"/><td style="width:45.681%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:10.318%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.814%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.318%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.814%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.318%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.814%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.323%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Unum</td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Colonial</td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Unum US</td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-bottom:1pt solid #000000;padding-left:1pt;padding-right:1pt;">International</td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-bottom:1pt solid #000000;padding-left:1pt;padding-right:1pt;">Life</td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-bottom:1pt solid #000000;padding-left:1pt;padding-right:1pt;">Total</td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="21" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;">(in millions of dollars)</td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Deferred Acquisition Costs</td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Year Ended December 31, 2019</td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Beginning of Year</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">1,239.4 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">20.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">1,050.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">2,309.4 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Capitalization</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">334.5 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">12.8 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">311.3 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">658.6 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Amortization</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(344.0)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(7.1)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(258.8)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(609.9)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Adjustment Related to Unrealized Investment Gains and Losses</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(6.9)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">— </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(27.9)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(34.8)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Foreign Currency</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">— </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">0.7 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">— </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">0.7 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">End of Year</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">1,223.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">26.4 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">1,074.6 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">2,324.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="height:12pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:12pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:12pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:12pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:12pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:12pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:12pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:12pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Year Ended December 31, 2018</td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Beginning of Year</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">1,205.4 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">21.3 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">957.9 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">2,184.6 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Capitalization</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">344.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">8.1 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">315.9 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">668.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Amortization</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(315.1)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(8.2)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(242.2)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(565.5)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Adjustment Related to Unrealized Investment Gains and Losses</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">5.1 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">— </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">18.4 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">23.5 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Foreign Currency</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">— </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(1.2)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">— </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(1.2)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">End of Year</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">1,239.4 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">20.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">1,050.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:0%;">2,309.4 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:14pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;">Year Ended December 31, 2017</td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Beginning of Year</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">1,176.5 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">21.4 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">896.3 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:0%;">2,094.2 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Capitalization</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">325.5 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">7.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">295.5 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">628.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Amortization</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(293.6)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(9.1)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(224.4)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(527.1)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Adjustment Related to Unrealized Investment Gains and Losses</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(3.0)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">— </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(9.5)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">(12.5)</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">Foreign Currency</td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">— </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">2.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">— </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;">2.0 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"> </td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6.75pt;padding-right:1pt;">End of Year</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:0%;">1,205.4 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:0%;">21.3 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:0%;">957.9 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"> </td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;">$</td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:0%;">2,184.6 </td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"> </td></tr></table>

CY2019Q4

us-gaap

Assets

67013400000

USD

CY2018Q4

us-gaap

Assets

61875600000

USD

CY2019Q4

us-gaap

Goodwill

351700000

USD

CY2018Q4

us-gaap

Goodwill

350300000

USD

CY2019

us-gaap

Operating Lease Cost

OperatingLeaseCost

29400000

USD

CY2019

us-gaap

Sublease Income

SubleaseIncome

1900000

USD

CY2019

us-gaap

Lease Cost

LeaseCost

27500000

USD

CY2019

us-gaap

Operating Lease Payments

OperatingLeasePayments

28900000

USD

CY2019Q4

us-gaap

Operating Lease Weighted Average Remaining Lease Term1

OperatingLeaseWeightedAverageRemainingLeaseTerm1

P7Y

CY2019Q4

us-gaap

Operating Lease Weighted Average Discount Rate Percent

OperatingLeaseWeightedAverageDiscountRatePercent

0.0460

CY2018

us-gaap

Operating Leases Rent Expense Minimum Rentals

OperatingLeasesRentExpenseMinimumRentals

29200000

USD

CY2017

us-gaap

Operating Leases Rent Expense Minimum Rentals

OperatingLeasesRentExpenseMinimumRentals

27500000

USD

CY2019Q4

us-gaap

Lessee Operating Lease Liability Payments Due Next Twelve Months

LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

26600000

USD

CY2019Q4

us-gaap

Lessee Operating Lease Liability Payments Due Year Two

LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

23100000

USD

CY2019Q4

us-gaap

Lessee Operating Lease Liability Payments Due Year Three

LesseeOperatingLeaseLiabilityPaymentsDueYearThree

19900000

USD

CY2019Q4

us-gaap

Lessee Operating Lease Liability Payments Due Year Four

LesseeOperatingLeaseLiabilityPaymentsDueYearFour

14100000

USD

CY2019Q4

us-gaap

Lessee Operating Lease Liability Payments Due Year Five

LesseeOperatingLeaseLiabilityPaymentsDueYearFive

10900000

USD

CY2019Q4

us-gaap

Lessee Operating Lease Liability Payments Due After Year Five

LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

40600000

USD

CY2019Q4

us-gaap

Lessee Operating Lease Liability Payments Due

LesseeOperatingLeaseLiabilityPaymentsDue

135200000

USD

CY2019Q4

us-gaap

Sales Type And Direct Financing Leases Lease Receivable Undiscounted Excess Amount

SalesTypeAndDirectFinancingLeasesLeaseReceivableUndiscountedExcessAmount

20500000

USD

CY2019Q4

us-gaap

Operating Lease Liability

OperatingLeaseLiability

114700000

USD

CY2019Q4

us-gaap

Operating Lease Right Of Use Asset

OperatingLeaseRightOfUseAsset

108600000

USD

CY2019Q4

us-gaap

Premiums Earned Net

PremiumsEarnedNet

2352600000

USD

CY2019Q3

us-gaap

Premiums Earned Net

PremiumsEarnedNet

2331200000

USD

CY2019Q2

us-gaap

Premiums Earned Net

PremiumsEarnedNet

2343100000

USD

CY2019Q1

us-gaap

Premiums Earned Net

PremiumsEarnedNet

2338700000

USD

CY2019Q4

us-gaap

Net Investment Income

NetInvestmentIncome

616300000

USD

CY2019Q3

us-gaap

Net Investment Income

NetInvestmentIncome

599400000

USD

CY2019Q2

us-gaap

Net Investment Income

NetInvestmentIncome

624900000

USD

CY2019Q1

us-gaap

Net Investment Income

NetInvestmentIncome

594700000

USD

CY2019Q4

us-gaap

Gain Loss On Investments

GainLossOnInvestments

9200000

USD

CY2019Q3

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-26200000

USD

CY2019Q2

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-7300000

USD

CY2019Q1

us-gaap

Gain Loss On Investments

GainLossOnInvestments

1100000

USD

CY2019Q4

us-gaap

Revenues

3034600000

USD

CY2019Q3

us-gaap

Revenues

2960000000.0

USD

CY2019Q2

us-gaap

Revenues

3016700000

USD

CY2019Q1

us-gaap

Revenues

2987600000

USD

CY2019Q4

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

377400000

USD

CY2019Q3

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

299400000

USD

CY2019Q2

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

352000000.0

USD

CY2019Q1

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

353300000

USD

CY2019Q4

us-gaap

Net Income Loss

NetIncomeLoss

296200000

USD

CY2018Q2

us-gaap

Net Income Loss

NetIncomeLoss

285500000

USD

CY2019Q3

us-gaap

Net Income Loss

NetIncomeLoss

242000000.0

USD

CY2019Q2

us-gaap

Net Income Loss

NetIncomeLoss

281200000

USD

CY2019Q1

us-gaap

Net Income Loss

NetIncomeLoss

280900000

USD

CY2019Q4

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

1.44

CY2019Q3

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

1.16

CY2019Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

1.33

CY2019Q1

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

1.31

CY2019Q4

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

1.44

CY2019Q3

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

1.16

CY2019Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

1.33

CY2019Q1

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

1.31

CY2018Q4

us-gaap

Premiums Earned Net

PremiumsEarnedNet

2263300000

USD

CY2018Q3

us-gaap

Premiums Earned Net

PremiumsEarnedNet

2251800000

USD

CY2018Q2

us-gaap

Premiums Earned Net

PremiumsEarnedNet

2221000000.0

USD

CY2018Q1

us-gaap

Premiums Earned Net

PremiumsEarnedNet

2250000000.0

USD

CY2018Q4

us-gaap

Net Investment Income

NetInvestmentIncome

608600000

USD

CY2018Q3

us-gaap

Net Investment Income

NetInvestmentIncome

619200000

USD

CY2018Q2

us-gaap

Net Investment Income

NetInvestmentIncome

623600000

USD

CY2018Q1

us-gaap

Net Investment Income

NetInvestmentIncome

602300000

USD

CY2018Q4

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-41400000

USD

CY2018Q3

us-gaap

Gain Loss On Investments

GainLossOnInvestments

6700000

USD

CY2018Q2

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-2600000

USD

CY2018Q1

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-2200000

USD

CY2018Q4

us-gaap

Revenues

2880800000

USD

CY2018Q3

us-gaap

Revenues

2927800000

USD

CY2018Q2

us-gaap

Revenues

2890300000

USD

CY2018Q1

us-gaap

Revenues

2899600000

USD

CY2018Q4

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

309700000

USD

CY2018Q3

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

-377800000

USD

CY2018Q2

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

354800000

USD

CY2018Q1

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

341100000

USD

CY2018Q4

us-gaap

Net Income Loss

NetIncomeLoss

249100000

USD

CY2018Q3

us-gaap

Net Income Loss

NetIncomeLoss

-284700000

USD

CY2018Q1

us-gaap

Net Income Loss

NetIncomeLoss

273500000

USD

CY2018Q4

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

1.15

CY2018Q3

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

-1.30

CY2018Q2

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

1.29

CY2018Q1

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

1.23

CY2018Q4

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

1.15

CY2018Q3

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

-1.30

CY2018Q2

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

1.29

CY2018Q1

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

1.23

CY2019Q4

us-gaap

Summary Of Investments Other Than Investments In Related Parties Cost

SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCost

49331700000

USD

CY2019Q4

us-gaap

Summary Of Investments Other Than Investments In Related Parties Carrying Amount

SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount

55758900000

USD

CY2019Q4

us-gaap

Supplementary Insurance Information Deferred Policy Acquisition Costs

SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts

2324000000.0

USD

CY2019Q4

us-gaap

Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves

SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves

47780100000

USD

CY2019Q4

us-gaap

Supplementary Insurance Information Unearned Premiums

SupplementaryInsuranceInformationUnearnedPremiums

363900000

USD

CY2018Q4

srt

Life Insurance In Force Net

LifeInsuranceInForceNet

897487300000

USD

CY2019Q4

us-gaap

Supplementary Insurance Information Other Policy Claims And Benefits Payable

SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable

1745500000

USD

CY2018Q4

us-gaap

Supplementary Insurance Information Deferred Policy Acquisition Costs

SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts

2309400000

USD

CY2018Q4

us-gaap

Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves

SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves

44841900000

USD

CY2018Q4

us-gaap

Supplementary Insurance Information Unearned Premiums

SupplementaryInsuranceInformationUnearnedPremiums

363300000

USD

CY2018Q4

us-gaap

Supplementary Insurance Information Other Policy Claims And Benefits Payable

SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable

1695700000

USD

CY2019

us-gaap

Supplementary Insurance Information Premium Revenue

SupplementaryInsuranceInformationPremiumRevenue

9365600000

USD

CY2019

us-gaap

Supplementary Insurance Information Net Investment Income

SupplementaryInsuranceInformationNetInvestmentIncome

2435300000

USD

CY2019

us-gaap

Supplementary Insurance Information Benefits Claims Losses And Settlement Expense

SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense

7496200000

USD

CY2019

us-gaap

Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs

SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts

609900000

USD

CY2019

us-gaap

Supplementary Insurance Information Other Operating Expense

SupplementaryInsuranceInformationOtherOperatingExpense

2510700000

USD

CY2018

us-gaap

Supplementary Insurance Information Premium Revenue

SupplementaryInsuranceInformationPremiumRevenue

8986100000

USD

CY2018

us-gaap

Supplementary Insurance Information Net Investment Income

SupplementaryInsuranceInformationNetInvestmentIncome

2453700000

USD

CY2018

us-gaap

Supplementary Insurance Information Benefits Claims Losses And Settlement Expense

SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense

8020400000

USD

CY2018

us-gaap

Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs

SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts

565500000

USD

CY2018

us-gaap

Supplementary Insurance Information Other Operating Expense

SupplementaryInsuranceInformationOtherOperatingExpense

2384800000

USD

CY2017

us-gaap

Supplementary Insurance Information Premium Revenue

SupplementaryInsuranceInformationPremiumRevenue

8597100000

USD

CY2017

us-gaap

Supplementary Insurance Information Net Investment Income

SupplementaryInsuranceInformationNetInvestmentIncome

2451700000

USD

CY2017

us-gaap

Supplementary Insurance Information Benefits Claims Losses And Settlement Expense

SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense

7055700000

USD

CY2017

us-gaap

Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs

SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts

527100000

USD

CY2017

us-gaap

Supplementary Insurance Information Other Operating Expense

SupplementaryInsuranceInformationOtherOperatingExpense

2300000000.0

USD

CY2019Q4

srt

Life Insurance In Force Gross

LifeInsuranceInForceGross

990371000000.0

USD

CY2019Q4

srt

Life Insurance In Force Ceded

LifeInsuranceInForceCeded

41669800000

USD

CY2019Q4

srt

Life Insurance In Force Assumed

LifeInsuranceInForceAssumed

1018400000

USD

CY2019Q4

srt

Life Insurance In Force Net

LifeInsuranceInForceNet

949719600000

USD

CY2019Q4

srt

Life Insurance In Force Percentage Assumed To Net

LifeInsuranceInForcePercentageAssumedToNet

0.001

CY2019

us-gaap

Direct Premiums Earned

DirectPremiumsEarned

9576300000

USD

CY2019

us-gaap

Ceded Premiums Earned

CededPremiumsEarned

327200000

USD

CY2019

us-gaap

Assumed Premiums Earned

AssumedPremiumsEarned

116500000

USD

CY2019

us-gaap

Premiums Earned Net

PremiumsEarnedNet

9365600000

USD

CY2019

us-gaap

Premiums Percentage Assumed To Net

PremiumsPercentageAssumedToNet

0.012

CY2018Q4

srt

Life Insurance In Force Gross

LifeInsuranceInForceGross

937300800000

USD

CY2018Q4

srt

Life Insurance In Force Ceded

LifeInsuranceInForceCeded

40902800000

USD

CY2018Q4

srt

Life Insurance In Force Assumed

LifeInsuranceInForceAssumed

1089300000

USD

CY2018Q4

srt

Life Insurance In Force Percentage Assumed To Net

LifeInsuranceInForcePercentageAssumedToNet

0.001

CY2018

us-gaap

Direct Premiums Earned

DirectPremiumsEarned

9171100000

USD

CY2018

us-gaap

Ceded Premiums Earned

CededPremiumsEarned

327600000

USD

CY2018

us-gaap

Assumed Premiums Earned

AssumedPremiumsEarned

142600000

USD

CY2018

us-gaap

Premiums Earned Net

PremiumsEarnedNet

8986100000

USD

CY2018

us-gaap

Premiums Percentage Assumed To Net

PremiumsPercentageAssumedToNet

0.016

CY2017Q4

srt

Life Insurance In Force Gross

LifeInsuranceInForceGross

887857200000

USD

CY2017Q4

srt

Life Insurance In Force Ceded

LifeInsuranceInForceCeded

36545000000.0

USD

CY2017Q4

srt

Life Insurance In Force Assumed

LifeInsuranceInForceAssumed

1045800000

USD

CY2017Q4

srt

Life Insurance In Force Net

LifeInsuranceInForceNet

852358000000.0

USD

CY2017Q4

srt

Life Insurance In Force Percentage Assumed To Net

LifeInsuranceInForcePercentageAssumedToNet

0.001

CY2017

us-gaap

Direct Premiums Earned

DirectPremiumsEarned

8677200000

USD

CY2017

us-gaap

Ceded Premiums Earned

CededPremiumsEarned

310100000

USD

CY2017

us-gaap

Assumed Premiums Earned

AssumedPremiumsEarned

230000000.0

USD

CY2017

us-gaap

Premiums Earned Net

PremiumsEarnedNet

8597100000

USD

CY2017

us-gaap

Premiums Percentage Assumed To Net

PremiumsPercentageAssumedToNet

0.027

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2018 Q4 Form 10-K Financial Statement

#000000551320000027 Filed on February 18, 2020

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$UNM Unum Group Stock $unm

2018 Q4 Form 10-K Financial Statement

#000000551320000027 Filed on February 18, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$UNM
Unum Group Stock $unm