$unm 2016 Q4 10-K

Concept	2016 Q4	2016 Q3	2016 Q2
Revenue	$2.797B	$2.763B	$2.761B
YoY Change	2.72%	3.97%	2.13%
Cost Of Revenue		$1.743B	$1.734B
YoY Change		3.06%	1.8%
Gross Profit		$1.021B	$1.028B
YoY Change		5.56%	2.69%
Gross Profit Margin		36.94%	37.22%
Selling, General & Admin	$211.5M	$210.1M	$202.9M
YoY Change	0.19%	2.04%	-1.02%
% of Gross Profit		20.58%	19.74%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$25.80M	$118.8M	$126.2M
YoY Change	1.18%	1.54%	1.69%
% of Gross Profit		11.64%	12.28%
Operating Expenses	$2.386B	$2.386B	$2.379B
YoY Change	0.79%	2.81%	1.4%
Operating Profit		-$1.365B	-$1.351B
YoY Change		0.84%	0.44%
Interest Expense	-$39.80M	-$45.20M	-$42.40M
YoY Change	2.31%	18.64%	11.58%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$371.2M	$332.1M	$340.2M
YoY Change	17.25%	11.11%	6.38%
Income Tax	$123.2M	$96.10M	$103.4M
% Of Pretax Income	33.19%	28.94%	30.39%
Net Earnings	$248.0M	$236.0M	$236.8M
YoY Change	9.69%	15.8%	5.57%
Net Earnings / Revenue	8.87%	8.54%	8.58%
Basic Earnings Per Share	$1.07	$1.01	$1.00
Diluted Earnings Per Share	$1.07	$1.01	$1.00
COMMON SHARES
Basic Shares Outstanding	232.1M shares	233.8M shares	236.9M shares
Diluted Shares Outstanding		234.2M shares	237.3M shares

Concept	2016 Q4	2016 Q3	2016 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$100.0M	$88.00M	$94.00M
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	$500.6M	$509.7M	$510.9M
YoY Change	-4.45%	-3.76%	-4.63%
Goodwill	$335.1M	$336.8M	$226.7M
YoY Change	45.13%	45.11%	14.03%
Intangibles
YoY Change
Long-Term Investments	$51.10B	$53.07B	$53.07B
YoY Change	2.25%	4.34%	4.1%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$61.94B	$63.91B	$63.85B
YoY Change	2.28%	3.9%	3.48%
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	$351.0M
YoY Change	-100.0%	-100.0%	130.92%
Total Short-Term Liabilities	$427.0M	$440.0M	$831.0M
YoY Change	-44.76%	-52.28%	47.86%
LONG-TERM LIABILITIES
Long-Term Debt	$2.999B	$3.020B	$3.043B
YoY Change	22.45%	36.22%	17.9%
Other Long-Term Liabilities	$1.676B	$1.450B	$1.459B
YoY Change	11.66%	-6.45%	0.97%
Total Long-Term Liabilities	$2.999B	$4.470B	$4.502B
YoY Change	22.45%	18.66%	11.82%
TOTAL LIABILITIES
Total Short-Term Liabilities	$427.0M	$440.0M	$831.0M
Total Long-Term Liabilities	$2.999B	$4.470B	$4.502B
Total Liabilities	$52.97B	$54.54B	$54.70B
YoY Change	2.07%	3.06%	2.83%
SHAREHOLDERS EQUITY
Retained Earnings	$8.744B	$8.542B	$8.353B
YoY Change	9.37%	9.32%	9.11%
Common Stock	$2.303B	$2.293B	$2.289B
YoY Change	1.13%	1.05%	1.03%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$2.028B	$1.925B	$1.825B
YoY Change	24.82%	26.29%	29.49%
Treasury Stock Shares	73.73M shares	71.24M shares	68.29M shares
Shareholders Equity	$8.968B	$9.361B	$9.157B
YoY Change
Total Liabilities & Shareholders Equity	$61.94B	$63.91B	$63.85B
YoY Change	2.28%	3.9%	3.48%

Concept	2016 Q4	2016 Q3	2016 Q2
OPERATING ACTIVITIES
Net Income	$248.0M	$236.0M	$236.8M
YoY Change	9.69%	15.8%	5.57%
Depreciation, Depletion And Amortization	$25.80M	$118.8M	$126.2M
YoY Change	1.18%	1.54%	1.69%
Cash From Operating Activities	$361.2M	$193.5M	$268.1M
YoY Change	23.4%	-29.12%	-17.84%
INVESTING ACTIVITIES
Capital Expenditures	-$24.90M	-$18.50M	-$24.40M
YoY Change	-7.43%	-8.42%	12.44%
Acquisitions
YoY Change
Other Investing Activities	-$164.5M	$350.4M	-$717.6M
YoY Change	-28.88%	-527.84%	636.76%
Cash From Investing Activities	-$189.4M	$331.9M	-$742.0M
YoY Change	-26.65%	-425.07%	523.01%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-159.3M	-531.3M	447.0M
YoY Change	415.53%	188.44%	-364.97%
NET CHANGE
Cash From Operating Activities	361.2M	193.5M	268.1M
Cash From Investing Activities	-189.4M	331.9M	-742.0M
Cash From Financing Activities	-159.3M	-531.3M	447.0M
Net Change In Cash	12.50M	-5.900M	-26.90M
YoY Change	247.22%	-55.64%	-169.87%
FREE CASH FLOW
Cash From Operating Activities	$361.2M	$193.5M	$268.1M
Capital Expenditures	-$24.90M	-$18.50M	-$24.40M
Free Cash Flow	$386.1M	$212.0M	$292.5M
YoY Change	20.81%	-27.69%	-15.95%

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	10500000000	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	Unum Group
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0000005513
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	221261100	shares
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2017	dei	Trading Symbol TradingSymbol	UNM
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CY2015Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	1470300000	USD
CY2016Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	1052000000	USD
CY2017Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	904500000	USD
CY2015Q4	unm	Accident And Health Active Life Reserves AccidentAndHealthActiveLifeReserves	9704400000	USD
CY2016Q4	unm	Accident And Health Active Life Reserves AccidentAndHealthActiveLifeReserves	10172900000	USD
CY2017Q4	unm	Accident And Health Active Life Reserves AccidentAndHealthActiveLifeReserves	10658800000	USD
CY2015	unm	Amount Funded To Special Purpose Entity Partnerships AmountFundedToSpecialPurposeEntityPartnerships	nor did we fund any amounts to the partnership
CY2016	unm	Amount Funded To Special Purpose Entity Partnerships AmountFundedToSpecialPurposeEntityPartnerships	nor did we fund any amounts to the partnership
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CY2017Q4	unm	Assets Participation Fund Account AssetsParticipationFundAccount	328300000	USD
CY2016Q4	unm	Available For Sale Securities Debt Maturities Amortized Cost Gross Subtotal AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostGrossSubtotal	37447800000	USD
CY2017Q4	unm	Available For Sale Securities Debt Maturities Amortized Cost Gross Subtotal AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostGrossSubtotal	37907300000	USD
CY2015	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	1634900000	USD
CY2016	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	-425600000	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
CY2015	unm	Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense	856600000	USD
CY2016	unm	Change In Adjustment To Deferred Acquisition Costs And Reserves For Future Policy And Contract Benefits Net Of Reinsurance Tax Expense ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense	-200600000	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	USD
CY2017Q4	unm	Collateral Requirements Minimum Percentage Collateral To Fair Value Of Securities Loaned Or Purchased Under Repurchase Agreements CollateralRequirementsMinimumPercentageCollateralToFairValueOfSecuritiesLoanedOrPurchasedUnderRepurchaseAgreements	1.02
CY2017Q4	unm	Commitment To Fund Private Placement Fixed Maturity Securities CommitmentToFundPrivatePlacementFixedMaturitySecurities	41800000	USD
CY2017Q4	unm	Committments To Fund Commercial Mortgage Loans CommittmentsToFundCommercialMortgageLoans	45300000	USD
CY2016Q4	unm	Count Of Financing Receivable Recorded Investment Nonaccrual Status CountOfFinancingReceivableRecordedInvestmentNonaccrualStatus	0
CY2017Q4	unm	Count Of Financing Receivable Recorded Investment Nonaccrual Status CountOfFinancingReceivableRecordedInvestmentNonaccrualStatus	0
CY2015	unm	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Provisional Income Tax Expense Benefit Percent EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateProvisionalIncomeTaxExpenseBenefitPercent	0.000
CY2016	unm	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Provisional Income Tax Expense Benefit Percent EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateProvisionalIncomeTaxExpenseBenefitPercent	0.000
CY2017	unm	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Provisional Income Tax Expense Benefit Percent EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateProvisionalIncomeTaxExpenseBenefitPercent	-0.070
CY2015	unm	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Transition Taxfor Accumulated Foreign Earnings Provisional Income Tax Expense Percent EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017IncompleteAccountingTransitionTaxforAccumulatedForeignEarningsProvisionalIncomeTaxExpensePercent	0.000
CY2016	unm	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Transition Taxfor Accumulated Foreign Earnings Provisional Income Tax Expense Percent EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017IncompleteAccountingTransitionTaxforAccumulatedForeignEarningsProvisionalIncomeTaxExpensePercent	0.000
CY2017	unm	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Transition Taxfor Accumulated Foreign Earnings Provisional Income Tax Expense Percent EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017IncompleteAccountingTransitionTaxforAccumulatedForeignEarningsProvisionalIncomeTaxExpensePercent	0.047
CY2015	unm	Investment Income On Pfa Assets InvestmentIncomeOnPfaAssets	14600000	USD
CY2016	unm	Investment Income On Pfa Assets InvestmentIncomeOnPfaAssets	14200000	USD
CY2017	unm	Investment Income On Pfa Assets InvestmentIncomeOnPfaAssets	14100000	USD
CY2015Q4	unm	Life Reserves For Future Policy And Contract Benefits LifeReservesForFuturePolicyAndContractBenefits	7946300000	USD
CY2016Q4	unm	Life Reserves For Future Policy And Contract Benefits LifeReservesForFuturePolicyAndContractBenefits	8078200000	USD
CY2017Q4	unm	Life Reserves For Future Policy And Contract Benefits LifeReservesForFuturePolicyAndContractBenefits	8231300000	USD
CY2017Q4	unm	Line Of Credit Facility Maximum Borrowing Capacity If Requested LineOfCreditFacilityMaximumBorrowingCapacityIfRequested	600000000	USD
CY2017Q4	unm	Loan To Value Ratio Maximum LoanToValueRatioMaximum	0.75
CY2017	unm	Loan To Value Ratio Update Frequency LoanToValueRatioUpdateFrequency	three
CY2017Q4	unm	Mortage Loan Policy Debt Service Coverage Ratio Lower Range MortageLoanPolicyDebtServiceCoverageRatioLowerRange	1.25
CY2017	unm	Mortgage Loan Inspection Frequency MortgageLoanInspectionFrequency	two
CY2017	unm	Mortgageloanpolicyamortizationperiod Mortgageloanpolicyamortizationperiod	25
CY2015	unm	Notional Amount Of Derivatives Additions NotionalAmountOfDerivativesAdditions	96000000	USD
CY2016	unm	Notional Amount Of Derivatives Additions NotionalAmountOfDerivativesAdditions	33500000	USD
CY2017	unm	Notional Amount Of Derivatives Additions NotionalAmountOfDerivativesAdditions	92100000	USD
CY2015	unm	Notional Amount Of Derivatives Terminations NotionalAmountOfDerivativesTerminations	313100000	USD
CY2016	unm	Notional Amount Of Derivatives Terminations NotionalAmountOfDerivativesTerminations	451800000	USD
CY2017	unm	Notional Amount Of Derivatives Terminations NotionalAmountOfDerivativesTerminations	239600000	USD
CY2017	unm	Number Of Changes To Accounting Policy For Estimating Credit Losses On Mortgage Loans NumberOfChangesToAccountingPolicyForEstimatingCreditLossesOnMortgageLoans	0
CY2017Q4	unm	Number Of Companies That Make Up Majority Of Reinsurance Recoverable NumberOfCompaniesThatMakeUpMajorityOfReinsuranceRecoverable	13
CY2015	unm	Other Investments Gross Realized Gains OtherInvestmentsGrossRealizedGains	16000000	USD
CY2016	unm	Other Investments Gross Realized Gains OtherInvestmentsGrossRealizedGains	5500000	USD
CY2017	unm	Other Investments Gross Realized Gains OtherInvestmentsGrossRealizedGains	9400000	USD
CY2015	unm	Other Investments Gross Realized Losses OtherInvestmentsGrossRealizedLosses	100000	USD
CY2016	unm	Other Investments Gross Realized Losses OtherInvestmentsGrossRealizedLosses	700000	USD
CY2017	unm	Other Investments Gross Realized Losses OtherInvestmentsGrossRealizedLosses	200000	USD
CY2017	unm	Outstanding Performance Share Unit Awards Grant Price Range Lower Limit OutstandingPerformanceShareUnitAwardsGrantPriceRangeLowerLimit	27.85
CY2017	unm	Outstanding Performance Share Unit Awards Grant Price Range Upper Limit OutstandingPerformanceShareUnitAwardsGrantPriceRangeUpperLimit	49.86
CY2017	unm	Outstanding Restricted Stock Unit Grant Prices Lower Limit OutstandingRestrictedStockUnitGrantPricesLowerLimit	27.85
CY2017	unm	Outstanding Restricted Stock Unit Grant Prices Upper Limit OutstandingRestrictedStockUnitGrantPricesUpperLimit	53.94
CY2016Q4	unm	Percentage Of Loan Portfolio PercentageOfLoanPortfolio	1.000
CY2017Q4	unm	Percentage Of Loan Portfolio PercentageOfLoanPortfolio	1.000
CY2016Q4	unm	Policy Loans Cededto Reinsurers PolicyLoansCededtoReinsurers	3206100000	USD
CY2017Q4	unm	Policy Loans Cededto Reinsurers PolicyLoansCededtoReinsurers	3307500000	USD
CY2015	unm	Premium Tax Expense PremiumTaxExpense	146500000	USD
CY2016	unm	Premium Tax Expense PremiumTaxExpense	152500000	USD
CY2017	unm	Premium Tax Expense PremiumTaxExpense	158000000	USD
CY2015	unm	Shares Repurchased Cost Commissions SharesRepurchasedCostCommissions	300000	USD
CY2016	unm	Shares Repurchased Cost Commissions SharesRepurchasedCostCommissions	200000	USD
CY2017	unm	Shares Repurchased Cost Commissions SharesRepurchasedCostCommissions	300000	USD
CY2015Q4	unm	Tax Attributable To Temporary Items Included Above TaxAttributableToTemporaryItemsIncludedAbove	0	USD
CY2016Q4	unm	Tax Attributable To Temporary Items Included Above TaxAttributableToTemporaryItemsIncludedAbove	0	USD
CY2017Q4	unm	Tax Attributable To Temporary Items Included Above TaxAttributableToTemporaryItemsIncludedAbove	0	USD
CY2015	unm	Tax Benefitsfrom Low Income Housing Investments TaxBenefitsfromLowIncomeHousingInvestments	18500000	USD
CY2016	unm	Tax Benefitsfrom Low Income Housing Investments TaxBenefitsfromLowIncomeHousingInvestments	18600000	USD
CY2017	unm	Tax Benefitsfrom Low Income Housing Investments TaxBenefitsfromLowIncomeHousingInvestments	18600000	USD
CY2017	unm	Tax Cutsand Jobs Actof2017 Accounting Complete TaxCutsandJobsActof2017AccountingComplete	false
CY2017	unm	Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Deferred Tax Liability Provisional Income Tax Benefit TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit	97900000	USD
CY2017	unm	Tax Cutsand Jobs Actof2017 Incomplete Accounting Transition Taxfor Accumulated Foreign Earnings Provisional Income Tax Expense TaxCutsandJobsActof2017IncompleteAccountingTransitionTaxforAccumulatedForeignEarningsProvisionalIncomeTaxExpense	66400000	USD
CY2017Q4	unm	Tax Cutsand Jobs Actof2017 Incomplete Accounting Undistributed Accumulated Earningsof Foreign Subsidiaryforwhich Unrecognized Deferred Tax Liabilities Havenot Been Recorded TaxCutsandJobsActof2017IncompleteAccountingUndistributedAccumulatedEarningsofForeignSubsidiaryforwhichUnrecognizedDeferredTaxLiabilitiesHavenotBeenRecorded	700000000	USD
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CY2015Q4	unm	Total Acquiree Assets Purchased TotalAcquireeAssetsPurchased	28100000	USD
CY2016Q4	unm	Total Acquiree Assets Purchased TotalAcquireeAssetsPurchased	93100000	USD
CY2015Q4	unm	Total Acquiree Liabilities Purchased TotalAcquireeLiabilitiesPurchased	7500000	USD
CY2015Q4	unm	Total Acquiree Liabilities Purchased TotalAcquireeLiabilitiesPurchased	5000000	GBP
CY2016Q4	unm	Total Acquiree Liabilities Purchased TotalAcquireeLiabilitiesPurchased	55700000	USD
CY2017	unm	Unclaimed Death Benefit Reserve Increase Before Taxes UnclaimedDeathBenefitReserveIncreaseBeforeTaxes	39000000	USD
CY2015Q4	unm	Unrealized Adjustment To Reserves For Future Policy And Contract Benefits UnrealizedAdjustmentToReservesForFuturePolicyAndContractBenefits	3578400000	USD
CY2016Q4	unm	Unrealized Adjustment To Reserves For Future Policy And Contract Benefits UnrealizedAdjustmentToReservesForFuturePolicyAndContractBenefits	4253200000	USD
CY2017Q4	unm	Unrealized Adjustment To Reserves For Future Policy And Contract Benefits UnrealizedAdjustmentToReservesForFuturePolicyAndContractBenefits	5094700000	USD
CY2017Q4	unm	Unum Group Percentage Ownershipof Provident Financing Trust UnumGroupPercentageOwnershipofProvidentFinancingTrust	1.00
CY2016Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	693300000	USD
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CY2016Q4	us-gaap	Accumulated Amortization Of Other Deferred Costs AccumulatedAmortizationOfOtherDeferredCosts	119200000	USD
CY2017Q4	us-gaap	Accumulated Amortization Of Other Deferred Costs AccumulatedAmortizationOfOtherDeferredCosts	130400000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	989400000	USD
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CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-51000000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	127500000	USD
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CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2303300000	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	3600000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	300000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	0	USD
CY2015	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	41800000	USD
CY2016	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	41800000	USD
CY2017	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	41800000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	23800000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	21900000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	29500000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	15700000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	14400000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	19500000	USD
CY2015	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	23300000	USD
CY2016	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	23200000	USD
CY2017	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	23200000	USD
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	300000	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	400000	shares
CY2016Q4	us-gaap	Assets Assets	61941500000	USD
CY2017Q4	us-gaap	Assets Assets	64013100000	USD
CY2015	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	202800000	USD
CY2016	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	236300000	USD
CY2017	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	230000000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	39780500000	USD
CY2016Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	39552700000	USD
CY2016Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	44217300000	USD
CY2017Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	45457800000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	63700000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	83500000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	154900000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	40000000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	4667300000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	2037600000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	801900000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	1144500000	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	10991600000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	12091100000	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	6231000000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	5579900000	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	18886400000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	18611200000	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1338800000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1625100000	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	2104900000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	1873200000	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	44217300000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	45457800000	USD
CY2015	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	23800000	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	34300000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	13800000	USD
CY2015	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	25600000	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	17200000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	4400000	USD
CY2016Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	35200000	USD
CY2017Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	46400000	USD
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CY2016	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	9698800000	USD
CY2017	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	9882800000	USD
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CY2016Q4	us-gaap	Business Acquisition Percentage Of Voting Interests Acquired BusinessAcquisitionPercentageOfVotingInterestsAcquired	1	Rate
CY2016Q4	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	10000000	USD
CY2014Q4	us-gaap	Cash Cash	102500000	USD
CY2015Q4	us-gaap	Cash Cash	112900000	USD
CY2016Q4	us-gaap	Cash Cash	100400000	USD
CY2017Q4	us-gaap	Cash Cash	77400000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	10400000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-12500000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-23000000	USD
CY2017	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	63600000	USD
CY2015	us-gaap	Ceded Premiums Earned CededPremiumsEarned	272300000	USD
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CY2017	us-gaap	Ceded Premiums Earned CededPremiumsEarned	310100000	USD
CY2016Q4	us-gaap	Collateralized Financings CollateralizedFinancings	406000000	USD
CY2017Q4	us-gaap	Collateralized Financings CollateralizedFinancings	396200000	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	725000000	shares
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CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	303552934	shares
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CY2016Q4	us-gaap	Common Stock Value CommonStockValue	30400000	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	30500000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	716800000	USD
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CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1172700000	USD
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CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	374900000	USD
CY2015	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	61600000	USD
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CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	26000000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	342100000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	385700000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	401300000	USD
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CY2016Q4	us-gaap	Debt Current DebtCurrent	0	USD
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CY2016Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	28400000	USD
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CY2017	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	527100000	USD
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CY2017Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	2184600000	USD
CY2015	us-gaap	Deferred Policy Acquisition Costs Period Increase Decrease DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease	87400000	USD
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CY2016Q4	us-gaap	Deferred Revenue And Credits DeferredRevenueAndCredits	23800000	USD
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CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1616100000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1088700000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	17400000	USD
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CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	600000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	0	USD
CY2016Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	600000	USD
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CY2017Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	908000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	17200000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	20300000	USD
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CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	199000000	USD
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CY2017Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	118600000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	1427600000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	1074000000	USD
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CY2017Q4	us-gaap	Defined Benefit Plan Expected Amortization Of Prior Service Cost Credit Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear	-200000	USD
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CY2017Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.05	Rate
CY2017	us-gaap	Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate	2024
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CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	103400000	USD
CY2016Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2017Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
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CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed	178700000	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	0	USD
CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	0	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	55300000	USD
CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	45800000	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities	155900000	USD
CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities	132900000	USD
CY2016Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	211200000	USD
CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	178700000	USD
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CY2017Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	0	USD
CY2016Q4	us-gaap	Derivative Assets DerivativeAssets	32700000	USD
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	19500000	USD
CY2016Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	25400000	USD
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CY2016Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	7300000	USD
CY2017Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	4200000	USD
CY2016Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2017Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	32700000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	19500000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	0	USD
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CY2015	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	83400000	USD
CY2016	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	53300000	USD
CY2017	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	46800000	USD
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CY2017	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-23100000	USD
CY2016Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	99500000	USD
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CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	82700000	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	82700000	USD
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	15200000	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	9300000	USD
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	0	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	0	USD
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	0	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	0	USD
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	67500000	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	73400000	USD
CY2016Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	82700000	USD
CY2017Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	82700000	USD
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CY2017Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	52200000	USD
CY2015	us-gaap	Direct Premiums Earned DirectPremiumsEarned	8151900000	USD
CY2016	us-gaap	Direct Premiums Earned DirectPremiumsEarned	8385000000	USD
CY2017	us-gaap	Direct Premiums Earned DirectPremiumsEarned	8677200000	USD
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CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.12
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.19
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CY2017	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	30800000	USD
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CY2017Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	2307200000	USD
CY2016Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	2154900000	USD
CY2017Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	1872700000	USD
CY2017Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	356900000	USD
CY2016Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	350000000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	350000000	USD
CY2016Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	31600000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	34100000	USD
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CY2015	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2000000	USD
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CY2017	us-gaap	Gain Loss From Components Excluded From Assessment Of Cash Flow Hedge Effectiveness Net GainLossFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectivenessNet	0	USD
CY2015	us-gaap	Gain Loss From Components Excluded From Assessment Of Fair Value Hedge Effectiveness Net GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet	0	USD
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CY2017	us-gaap	Gain Loss From Hedged Firm Commitment Not Qualifying As Fair Value Hedge Net GainLossFromHedgedFirmCommitmentNotQualifyingAsFairValueHedgeNet	0	USD
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CY2017Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	8100000	USD
CY2017Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	9800000	USD
CY2017Q4	us-gaap	Gain Loss On Investments GainLossOnInvestments	11400000	USD
CY2017	us-gaap	Gain Loss On Investments GainLossOnInvestments	40300000	USD
CY2015	us-gaap	Gain Loss On Investments Excluding Other Than Temporary Impairments GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments	-11400000	USD
CY2016	us-gaap	Gain Loss On Investments Excluding Other Than Temporary Impairments GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments	54700000	USD
CY2017	us-gaap	Gain Loss On Investments Excluding Other Than Temporary Impairments GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments	48400000	USD
CY2015	us-gaap	Gain On Cash Flow Hedge Ineffectiveness GainOnCashFlowHedgeIneffectiveness	0	USD
CY2016	us-gaap	Gain On Cash Flow Hedge Ineffectiveness GainOnCashFlowHedgeIneffectiveness	0	USD
CY2017	us-gaap	Gain On Cash Flow Hedge Ineffectiveness GainOnCashFlowHedgeIneffectiveness	0	USD
CY2015	us-gaap	Gain On Fair Value Hedge Ineffectiveness GainOnFairValueHedgeIneffectiveness	0	USD
CY2016	us-gaap	Gain On Fair Value Hedge Ineffectiveness GainOnFairValueHedgeIneffectiveness	0	USD
CY2017	us-gaap	Gain On Fair Value Hedge Ineffectiveness GainOnFairValueHedgeIneffectiveness	0	USD
CY2015	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
CY2016	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	USD
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CY2017Q4	us-gaap	Goodwill Goodwill	338600000	USD
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CY2016	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	2200000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	0	USD
CY2015	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	600000	USD
CY2016	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	0	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	0	USD
CY2016Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	5400000	USD
CY2015	us-gaap	Impairment Of Investments ImpairmentOfInvestments	5900000	USD
CY2016	us-gaap	Impairment Of Investments ImpairmentOfInvestments	5700000	USD
CY2017	us-gaap	Impairment Of Investments ImpairmentOfInvestments	900000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1057800000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1215800000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1289000000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	180500000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	131900000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	115000000	USD
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CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	361600000	USD
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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	USD
CY2015Q4	us-gaap	Income Tax Examination Liability Refund Adjustment From Settlement With Taxing Authority IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority	6800000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	371200000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	416300000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	409800000	USD
CY2015	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	330500000	USD
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CY2015	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-6500000	USD
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CY2015	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	194100000	USD
CY2016	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	187700000	USD
CY2017	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	200100000	USD
CY2015	us-gaap	Increase Decrease In Cash Collateral For Loaned Securities IncreaseDecreaseInCashCollateralForLoanedSecurities	341600000	USD
CY2016	us-gaap	Increase Decrease In Cash Collateral For Loaned Securities IncreaseDecreaseInCashCollateralForLoanedSecurities	-9400000	USD
CY2017	us-gaap	Increase Decrease In Cash Collateral For Loaned Securities IncreaseDecreaseInCashCollateralForLoanedSecurities	-9800000	USD
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CY2015	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	2527000000	USD

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CY2017

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FY

CY2017

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Document Fiscal Year Focus

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2017

CY2017

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Entity Filer Category

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Large Accelerated Filer

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10500000000

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CY2017

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Entity Registrant Name

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Unum Group

CY2017

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Entity Voluntary Filers

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Document Period End Date

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2017-12-31

CY2017

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Document Type

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10-K

CY2017

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Entity Central Index Key

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Entity Common Stock Shares Outstanding

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CY2017

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Entity Current Reporting Status

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Yes

CY2017

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Entity Well Known Seasoned Issuer

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Yes

CY2017

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Trading Symbol

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UNM

CY2014Q4

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1687400000

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CY2015Q4

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1470300000

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CY2016Q4

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1052000000

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CY2017Q4

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Derivative Notional Amount

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904500000

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CY2015Q4

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Accident And Health Active Life Reserves

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9704400000

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CY2016Q4

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Accident And Health Active Life Reserves

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Accident And Health Active Life Reserves

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Amount Funded To Special Purpose Entity Partnerships

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nor did we fund any amounts to the partnership

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Amount Funded To Special Purpose Entity Partnerships

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nor did we fund any amounts to the partnership

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Assets Participation Fund Account

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37447800000

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CY2017Q4

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

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-554500000

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

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856600000

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

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CY2017

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

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-245000000

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unm

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

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1.02

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Commitment To Fund Private Placement Fixed Maturity Securities

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41800000

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CY2017Q4

unm

Committments To Fund Commercial Mortgage Loans

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45300000

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CY2016Q4

unm

Count Of Financing Receivable Recorded Investment Nonaccrual Status

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0

CY2017Q4

unm

Count Of Financing Receivable Recorded Investment Nonaccrual Status

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0

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Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Provisional Income Tax Expense Benefit Percent

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0.000

CY2016

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Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Provisional Income Tax Expense Benefit Percent

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0.000

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Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Provisional Income Tax Expense Benefit Percent

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-0.070

CY2015

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Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Transition Taxfor Accumulated Foreign Earnings Provisional Income Tax Expense Percent

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0.000

CY2016

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Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Transition Taxfor Accumulated Foreign Earnings Provisional Income Tax Expense Percent

EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017IncompleteAccountingTransitionTaxforAccumulatedForeignEarningsProvisionalIncomeTaxExpensePercent

0.000

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unm

Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Incomplete Accounting Transition Taxfor Accumulated Foreign Earnings Provisional Income Tax Expense Percent

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0.047

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unm

Investment Income On Pfa Assets

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14600000

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CY2016

unm

Investment Income On Pfa Assets

InvestmentIncomeOnPfaAssets

14200000

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CY2017

unm

Investment Income On Pfa Assets

InvestmentIncomeOnPfaAssets

14100000

USD

CY2015Q4

unm

Life Reserves For Future Policy And Contract Benefits

LifeReservesForFuturePolicyAndContractBenefits

7946300000

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CY2016Q4

unm

Life Reserves For Future Policy And Contract Benefits

LifeReservesForFuturePolicyAndContractBenefits

8078200000

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CY2017Q4

unm

Life Reserves For Future Policy And Contract Benefits

LifeReservesForFuturePolicyAndContractBenefits

8231300000

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CY2017Q4

unm

Line Of Credit Facility Maximum Borrowing Capacity If Requested

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600000000

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CY2017Q4

unm

Loan To Value Ratio Maximum

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0.75

CY2017

unm

Loan To Value Ratio Update Frequency

LoanToValueRatioUpdateFrequency

three

CY2017Q4

unm

Mortage Loan Policy Debt Service Coverage Ratio Lower Range

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1.25

CY2017

unm

Mortgage Loan Inspection Frequency

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two

CY2017

unm

Mortgageloanpolicyamortizationperiod

25

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unm

Notional Amount Of Derivatives Additions

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96000000

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CY2016

unm

Notional Amount Of Derivatives Additions

NotionalAmountOfDerivativesAdditions

33500000

USD

CY2017

unm

Notional Amount Of Derivatives Additions

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92100000

USD

CY2015

unm

Notional Amount Of Derivatives Terminations

NotionalAmountOfDerivativesTerminations

313100000

USD

CY2016

unm

Notional Amount Of Derivatives Terminations

NotionalAmountOfDerivativesTerminations

451800000

USD

CY2017

unm

Notional Amount Of Derivatives Terminations

NotionalAmountOfDerivativesTerminations

239600000

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CY2017

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

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0

CY2017Q4

unm

Number Of Companies That Make Up Majority Of Reinsurance Recoverable

NumberOfCompaniesThatMakeUpMajorityOfReinsuranceRecoverable

13

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Other Investments Gross Realized Gains

OtherInvestmentsGrossRealizedGains

16000000

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CY2016

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Other Investments Gross Realized Gains

OtherInvestmentsGrossRealizedGains

5500000

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CY2017

unm

Other Investments Gross Realized Gains

OtherInvestmentsGrossRealizedGains

9400000

USD

CY2015

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Other Investments Gross Realized Losses

OtherInvestmentsGrossRealizedLosses

100000

USD

CY2016

unm

Other Investments Gross Realized Losses

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700000

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CY2017

unm

Other Investments Gross Realized Losses

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200000

USD

CY2017

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Outstanding Performance Share Unit Awards Grant Price Range Lower Limit

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27.85

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Outstanding Performance Share Unit Awards Grant Price Range Upper Limit

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49.86

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Outstanding Restricted Stock Unit Grant Prices Lower Limit

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27.85

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Outstanding Restricted Stock Unit Grant Prices Upper Limit

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53.94

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unm

Percentage Of Loan Portfolio

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1.000

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Percentage Of Loan Portfolio

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1.000

CY2016Q4

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Policy Loans Cededto Reinsurers

PolicyLoansCededtoReinsurers

3206100000

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CY2017Q4

unm

Policy Loans Cededto Reinsurers

PolicyLoansCededtoReinsurers

3307500000

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CY2015

unm

Premium Tax Expense

PremiumTaxExpense

146500000

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CY2016

unm

Premium Tax Expense

PremiumTaxExpense

152500000

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CY2017

unm

Premium Tax Expense

PremiumTaxExpense

158000000

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CY2015

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Shares Repurchased Cost Commissions

SharesRepurchasedCostCommissions

300000

USD

CY2016

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Shares Repurchased Cost Commissions

SharesRepurchasedCostCommissions

200000

USD

CY2017

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Shares Repurchased Cost Commissions

SharesRepurchasedCostCommissions

300000

USD

CY2015Q4

unm

Tax Attributable To Temporary Items Included Above

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0

USD

CY2016Q4

unm

Tax Attributable To Temporary Items Included Above

TaxAttributableToTemporaryItemsIncludedAbove

0

USD

CY2017Q4

unm

Tax Attributable To Temporary Items Included Above

TaxAttributableToTemporaryItemsIncludedAbove

0

USD

CY2015

unm

Tax Benefitsfrom Low Income Housing Investments

TaxBenefitsfromLowIncomeHousingInvestments

18500000

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CY2016

unm

Tax Benefitsfrom Low Income Housing Investments

TaxBenefitsfromLowIncomeHousingInvestments

18600000

USD

CY2017

unm

Tax Benefitsfrom Low Income Housing Investments

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18600000

USD

CY2017

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Tax Cutsand Jobs Actof2017 Accounting Complete

TaxCutsandJobsActof2017AccountingComplete

false

CY2017

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Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Deferred Tax Liability Provisional Income Tax Benefit

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97900000

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CY2017

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Tax Cutsand Jobs Actof2017 Incomplete Accounting Transition Taxfor Accumulated Foreign Earnings Provisional Income Tax Expense

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66400000

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Tax Cutsand Jobs Actof2017 Incomplete Accounting Undistributed Accumulated Earningsof Foreign Subsidiaryforwhich Unrecognized Deferred Tax Liabilities Havenot Been Recorded

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700000000

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CY2015Q4

unm

Total Acquiree Assets Purchased

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18600000

GBP

CY2015Q4

unm

Total Acquiree Assets Purchased

TotalAcquireeAssetsPurchased

28100000

USD

CY2016Q4

unm

Total Acquiree Assets Purchased

TotalAcquireeAssetsPurchased

93100000

USD

CY2015Q4

unm

Total Acquiree Liabilities Purchased

TotalAcquireeLiabilitiesPurchased

7500000

USD

CY2015Q4

unm

Total Acquiree Liabilities Purchased

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5000000

GBP

CY2016Q4

unm

Total Acquiree Liabilities Purchased

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55700000

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CY2017

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Unclaimed Death Benefit Reserve Increase Before Taxes

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39000000

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CY2015Q4

unm

Unrealized Adjustment To Reserves For Future Policy And Contract Benefits

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3578400000

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CY2016Q4

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Unrealized Adjustment To Reserves For Future Policy And Contract Benefits

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4253200000

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CY2017Q4

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Unrealized Adjustment To Reserves For Future Policy And Contract Benefits

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5094700000

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CY2017Q4

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CY2016Q4

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CY2017Q4

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CY2016Q4

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Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

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CY2017Q4

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CY2016Q4

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CY2017Q4

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CY2016Q4

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

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0

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CY2016Q4

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CY2017Q4

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Additional Paid In Capital Common Stock

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Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation

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CY2016

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Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation

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Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation

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0

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Affordable Housing Tax Credits And Other Tax Benefits Amount

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CY2016

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41800000

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CY2017

us-gaap

Affordable Housing Tax Credits And Other Tax Benefits Amount

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41800000

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CY2015

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Allocated Share Based Compensation Expense

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23800000

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CY2016

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Allocated Share Based Compensation Expense

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21900000

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CY2017

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Allocated Share Based Compensation Expense

AllocatedShareBasedCompensationExpense

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CY2015

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Allocated Share Based Compensation Expense Net Of Tax

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CY2016

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Allocated Share Based Compensation Expense Net Of Tax

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CY2017

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Allocated Share Based Compensation Expense Net Of Tax

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CY2015

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Amortization Method Qualified Affordable Housing Project Investments Amortization

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CY2016

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Amortization Method Qualified Affordable Housing Project Investments Amortization

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23200000

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CY2017

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Amortization Method Qualified Affordable Housing Project Investments Amortization

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23200000

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CY2015

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Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

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300000

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CY2016

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Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

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400000

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Assumed Premiums Earned

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Assumed Premiums Earned

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CY2017

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Assumed Premiums Earned

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Available For Sale Debt Securities Amortized Cost Basis

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CY2016Q4

us-gaap

Available For Sale Debt Securities Amortized Cost Basis

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CY2016Q4

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Available For Sale Securities

AvailableForSaleSecurities

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CY2017Q4

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Available For Sale Securities

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CY2016Q4

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Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss

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CY2017Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss

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CY2016Q4

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CY2017Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss

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CY2016Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

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CY2017Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value

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2037600000

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CY2016Q4

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801900000

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CY2017Q4

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Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value

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CY2016Q4

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CY2017Q4

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CY2016Q4

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CY2017Q4

us-gaap

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CY2016Q4

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Available For Sale Securities Debt Maturities After Ten Years Amortized Cost

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CY2017Q4

us-gaap

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CY2017Q4

us-gaap

Available For Sale Securities Debt Maturities Within One Year Amortized Cost

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CY2016Q4

us-gaap

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2104900000

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CY2017Q4

us-gaap

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1873200000

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CY2016Q4

us-gaap

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AvailableForSaleSecuritiesDebtSecurities

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AvailableForSaleSecuritiesDebtSecurities

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National Dental Plan Limited and associated companies (National Dental)

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H&J Capital, L.L.C., parent of Starmount Life Insurance Company and AlwaysCare Benefits (Starmount)

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1

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1

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Current Income Tax Expense Benefit

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Deferred Federal Income Tax Expense Benefit

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Deferred Finance Costs Current Net

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CY2016Q4

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CY2017Q4

us-gaap

Deferred Finance Costs Noncurrent Net

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us-gaap

Deferred Foreign Income Tax Expense Benefit

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us-gaap

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CY2015

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Deferred Income Tax Expense Benefit

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CY2016

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CY2017

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DeferredIncomeTaxExpenseBenefit

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CY2016Q4

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CY2017Q4

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CY2015

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CY2016

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493000000

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CY2017

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527100000

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CY2016Q4

us-gaap

Deferred Policy Acquisition Costs

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CY2017Q4

us-gaap

Deferred Policy Acquisition Costs

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CY2015

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Deferred Policy Acquisition Costs Period Increase Decrease

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87400000

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CY2016

us-gaap

Deferred Policy Acquisition Costs Period Increase Decrease

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99400000

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CY2017

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Deferred Policy Acquisition Costs Period Increase Decrease

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100900000

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CY2016Q4

us-gaap

Deferred Revenue And Credits

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CY2017Q4

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Deferred Revenue And Credits

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CY2015

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Deferred State And Local Income Tax Expense Benefit

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CY2016

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Deferred State And Local Income Tax Expense Benefit

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CY2017

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Deferred State And Local Income Tax Expense Benefit

DeferredStateAndLocalIncomeTaxExpenseBenefit

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CY2016Q4

us-gaap

Deferred Tax Assets Gross

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CY2017Q4

us-gaap

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CY2016Q4

us-gaap

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CY2017Q4

us-gaap

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DeferredTaxAssetsNet

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CY2016Q4

us-gaap

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CY2017Q4

us-gaap

Deferred Tax Assets Other

DeferredTaxAssetsOther

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CY2016Q4

us-gaap

Deferred Tax Assets State Taxes

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CY2017Q4

us-gaap

Deferred Tax Assets State Taxes

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CY2016Q4

us-gaap

Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax

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CY2017Q4

us-gaap

Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax

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0

USD

CY2016Q3

us-gaap

Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax

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CY2016Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits

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307400000

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CY2017Q4

us-gaap

Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits

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CY2016Q4

us-gaap

Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross

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1308500000

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CY2017Q4

us-gaap

Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross

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908000000

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CY2016Q4

us-gaap

Deferred Tax Assets Valuation Allowance

DeferredTaxAssetsValuationAllowance

17200000

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CY2017Q4

us-gaap

Deferred Tax Assets Valuation Allowance

DeferredTaxAssetsValuationAllowance

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CY2016Q4

us-gaap

Deferred Tax Liabilities

DeferredTaxLiabilities

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CY2017Q4

us-gaap

Deferred Tax Liabilities

DeferredTaxLiabilities

199000000

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CY2016Q4

us-gaap

Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost

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174900000

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CY2017Q4

us-gaap

Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost

DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost

118600000

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CY2016Q4

us-gaap

Deferred Tax Liabilities Investments

DeferredTaxLiabilitiesInvestments

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CY2017Q4

us-gaap

Deferred Tax Liabilities Investments

DeferredTaxLiabilitiesInvestments

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CY2016Q4

us-gaap

Deferred Tax Liabilities Other

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63200000

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CY2017Q4

us-gaap

Deferred Tax Liabilities Other

DeferredTaxLiabilitiesOther

42300000

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CY2016Q4

us-gaap

Deferred Tax Liabilities Property Plant And Equipment

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80700000

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CY2017Q4

us-gaap

Deferred Tax Liabilities Property Plant And Equipment

DeferredTaxLiabilitiesPropertyPlantAndEquipment

52800000

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CY2017

us-gaap

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

DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1

700000

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CY2017

us-gaap

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

DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation

700000

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CY2017Q4

us-gaap

Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year

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CY2017Q4

us-gaap

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

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CY2016Q4

us-gaap

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

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0.07

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CY2017Q4

us-gaap

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

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0.07

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CY2017Q4

us-gaap

Defined Benefit Plan Ultimate Health Care Cost Trend Rate1

DefinedBenefitPlanUltimateHealthCareCostTrendRate1

0.05

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CY2017

us-gaap

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

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2024

CY2015

us-gaap

Depreciation Amortization And Accretion Net

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CY2016

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

101700000

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CY2017

us-gaap

Depreciation Amortization And Accretion Net

DepreciationAmortizationAndAccretionNet

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CY2016Q4

us-gaap

Derivative Asset Fair Value Gross Liability

DerivativeAssetFairValueGrossLiability

0

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CY2017Q4

us-gaap

Derivative Asset Fair Value Gross Liability

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CY2016Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed

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211200000

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CY2017Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed

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178700000

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CY2016Q4

us-gaap

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

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral

0

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CY2017Q4

us-gaap

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

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral

0

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CY2016Q4

us-gaap

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

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash

55300000

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CY2017Q4

us-gaap

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

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash

45800000

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CY2016Q4

us-gaap

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

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities

155900000

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CY2017Q4

us-gaap

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

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132900000

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CY2016Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross

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211200000

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CY2017Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross

178700000

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CY2016Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability

0

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CY2017Q4

us-gaap

Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability

DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability

0

USD

CY2016Q4

us-gaap

Derivative Assets

DerivativeAssets

32700000

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CY2017Q4

us-gaap

Derivative Assets

DerivativeAssets

19500000

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CY2016Q4

us-gaap

Derivative Collateral Obligation To Return Cash

DerivativeCollateralObligationToReturnCash

25400000

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CY2017Q4

us-gaap

Derivative Collateral Obligation To Return Cash

DerivativeCollateralObligationToReturnCash

15300000

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CY2016Q4

us-gaap

Derivative Collateral Obligation To Return Securities

DerivativeCollateralObligationToReturnSecurities

7300000

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CY2017Q4

us-gaap

Derivative Collateral Obligation To Return Securities

DerivativeCollateralObligationToReturnSecurities

4200000

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CY2016Q4

us-gaap

Derivative Collateral Right To Reclaim Cash

DerivativeCollateralRightToReclaimCash

0

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CY2017Q4

us-gaap

Derivative Collateral Right To Reclaim Cash

DerivativeCollateralRightToReclaimCash

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CY2016Q4

us-gaap

Derivative Fair Value Of Derivative Asset

DerivativeFairValueOfDerivativeAsset

32700000

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CY2017Q4

us-gaap

Derivative Fair Value Of Derivative Asset

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CY2016Q4

us-gaap

Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral

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CY2017Q4

us-gaap

Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral

DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral

0

USD

CY2015

us-gaap

Derivative Gain Loss On Derivative Net

DerivativeGainLossOnDerivativeNet

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CY2016

us-gaap

Derivative Gain Loss On Derivative Net

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CY2017

us-gaap

Derivative Gain Loss On Derivative Net

DerivativeGainLossOnDerivativeNet

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CY2015

us-gaap

Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net

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83400000

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CY2016

us-gaap

Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net

DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

53300000

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CY2017

us-gaap

Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net

DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

46800000

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CY2015

us-gaap

Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net

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67400000

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CY2016

us-gaap

Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net

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CY2017

us-gaap

Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net

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CY2016Q4

us-gaap

Derivative Liabilities

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CY2017Q4

us-gaap

Derivative Liabilities

DerivativeLiabilities

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CY2016Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned

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82700000

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CY2017Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned

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82700000

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CY2016Q4

us-gaap

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

DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral

15200000

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CY2017Q4

us-gaap

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

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9300000

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CY2016Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset

DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset

0

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CY2017Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset

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CY2016Q4

us-gaap

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

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0

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CY2017Q4

us-gaap

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

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0

USD

CY2016Q4

us-gaap

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

DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities

67500000

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CY2017Q4

us-gaap

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

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73400000

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CY2016Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross

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82700000

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CY2017Q4

us-gaap

Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross

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82700000

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CY2016Q4

us-gaap

Derivative Net Liability Position Aggregate Fair Value

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52800000

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CY2017Q4

us-gaap

Derivative Net Liability Position Aggregate Fair Value

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52200000

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CY2015

us-gaap

Direct Premiums Earned

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CY2016

us-gaap

Direct Premiums Earned

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CY2017

us-gaap

Direct Premiums Earned

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CY2015

us-gaap

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CY2016Q1

us-gaap

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CY2016Q2

us-gaap

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CY2016Q3

us-gaap

Earnings Per Share Basic

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CY2016Q4

us-gaap

Earnings Per Share Basic

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CY2016

us-gaap

Earnings Per Share Basic

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CY2017Q1

us-gaap

Earnings Per Share Basic

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1.00

CY2017Q2

us-gaap

Earnings Per Share Basic

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CY2017Q3

us-gaap

Earnings Per Share Basic

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1.12

CY2017Q4

us-gaap

Earnings Per Share Basic

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1.19

CY2017

us-gaap

Earnings Per Share Basic

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4.39

CY2015

us-gaap

Earnings Per Share Diluted

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3.50

CY2016Q1

us-gaap

Earnings Per Share Diluted

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CY2016Q2

us-gaap

Earnings Per Share Diluted

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1.00

CY2016Q3

us-gaap

Earnings Per Share Diluted

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1.01

CY2016Q4

us-gaap

Earnings Per Share Diluted

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1.07

CY2016

us-gaap

Earnings Per Share Diluted

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3.95

CY2017Q1

us-gaap

Earnings Per Share Diluted

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1.00

CY2017Q2

us-gaap

Earnings Per Share Diluted

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1.07

CY2017Q3

us-gaap

Earnings Per Share Diluted

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1.12

CY2017Q4

us-gaap

Earnings Per Share Diluted

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1.19

CY2017

us-gaap

Earnings Per Share Diluted

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4.37

CY2015

us-gaap

Effective Income Tax Rate Continuing Operations

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0.300

CY2016

us-gaap

Effective Income Tax Rate Continuing Operations

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0.309

CY2017

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.292

CY2015

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

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0.350

CY2016

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

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0.350

CY2017

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.350

CY2015

us-gaap

Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential

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-0.025

CY2016

us-gaap

Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential

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-0.022

CY2017

us-gaap

Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential

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-0.011

CY2015

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

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-0.011

CY2016

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

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-0.003

CY2017

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

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-0.009

CY2015

us-gaap

Effective Income Tax Rate Reconciliation Tax Credits

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0.014

CY2016

us-gaap

Effective Income Tax Rate Reconciliation Tax Credits

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0.016

CY2017

us-gaap

Effective Income Tax Rate Reconciliation Tax Credits

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0.015

CY2015

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

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CY2016

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

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40900000

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CY2017

us-gaap

Embedded Derivative Gain Loss On Embedded Derivative Net

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30800000

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CY2016Q4

us-gaap

Fair Value Assets Level1 To Level2 Transfers Amount

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CY2017Q4

us-gaap

Fair Value Assets Level1 To Level2 Transfers Amount

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2307200000

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CY2016Q4

us-gaap

Fair Value Assets Level2 To Level1 Transfers Amount

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2154900000

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CY2017Q4

us-gaap

Fair Value Assets Level2 To Level1 Transfers Amount

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1872700000

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CY2017Q4

us-gaap

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356900000

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CY2016Q4

us-gaap

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

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350000000

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CY2017Q4

us-gaap

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

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350000000

USD

CY2016Q4

us-gaap

Federal Home Loan Bank Stock

FederalHomeLoanBankStock

31600000

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CY2017Q4

us-gaap

Federal Home Loan Bank Stock

FederalHomeLoanBankStock

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CY2015Q2

us-gaap

Financing Receivable Allowance For Credit Losses

FinancingReceivableAllowanceForCreditLosses

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CY2015Q4

us-gaap

Financing Receivable Allowance For Credit Losses

FinancingReceivableAllowanceForCreditLosses

0

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CY2015

us-gaap

Financing Receivable Allowance For Credit Losses Write Offs

FinancingReceivableAllowanceForCreditLossesWriteOffs

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CY2015

us-gaap

Foreign Currency Transaction Gain Loss Before Tax

ForeignCurrencyTransactionGainLossBeforeTax

-17600000

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CY2016

us-gaap

Foreign Currency Transaction Gain Loss Before Tax

ForeignCurrencyTransactionGainLossBeforeTax

-900000

USD

CY2017

us-gaap

Foreign Currency Transaction Gain Loss Before Tax

ForeignCurrencyTransactionGainLossBeforeTax

0

USD

CY2015

us-gaap

Gain Loss From Components Excluded From Assessment Of Cash Flow Hedge Effectiveness Net

GainLossFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectivenessNet

0

USD

CY2016

us-gaap

Gain Loss From Components Excluded From Assessment Of Cash Flow Hedge Effectiveness Net

GainLossFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectivenessNet

0

USD

CY2017

us-gaap

Gain Loss From Components Excluded From Assessment Of Cash Flow Hedge Effectiveness Net

GainLossFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectivenessNet

0

USD

CY2015

us-gaap

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

GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet

0

USD

CY2016

us-gaap

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

GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet

0

USD

CY2017

us-gaap

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

GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet

0

USD

CY2017

us-gaap

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

GainLossFromHedgedFirmCommitmentNotQualifyingAsFairValueHedgeNet

0

USD

CY2015

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-43800000

USD

CY2016Q1

us-gaap

Gain Loss On Investments

GainLossOnInvestments

-20500000

USD

CY2016Q2

us-gaap

Gain Loss On Investments

GainLossOnInvestments

5300000

USD

CY2016Q3

us-gaap

Gain Loss On Investments

GainLossOnInvestments

11000000

USD

CY2016Q4

us-gaap

Gain Loss On Investments

GainLossOnInvestments

28400000

USD

CY2016

us-gaap

Gain Loss On Investments

GainLossOnInvestments

24200000

USD

CY2017Q1

us-gaap

Gain Loss On Investments

GainLossOnInvestments

11000000

USD

CY2017Q2

us-gaap

Gain Loss On Investments

GainLossOnInvestments

8100000

USD

CY2017Q3

us-gaap

Gain Loss On Investments

GainLossOnInvestments

9800000

USD

CY2017Q4

us-gaap

Gain Loss On Investments

GainLossOnInvestments

11400000

USD

CY2017

us-gaap

Gain Loss On Investments

GainLossOnInvestments

40300000

USD

CY2015

us-gaap

Gain Loss On Investments Excluding Other Than Temporary Impairments

GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments

-11400000

USD

CY2016

us-gaap

Gain Loss On Investments Excluding Other Than Temporary Impairments

GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments

54700000

USD

CY2017

us-gaap

Gain Loss On Investments Excluding Other Than Temporary Impairments

GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments

48400000

USD

CY2015

us-gaap

Gain On Cash Flow Hedge Ineffectiveness

GainOnCashFlowHedgeIneffectiveness

0

USD

CY2016

us-gaap

Gain On Cash Flow Hedge Ineffectiveness

GainOnCashFlowHedgeIneffectiveness

0

USD

CY2017

us-gaap

Gain On Cash Flow Hedge Ineffectiveness

GainOnCashFlowHedgeIneffectiveness

0

USD

CY2015

us-gaap

Gain On Fair Value Hedge Ineffectiveness

GainOnFairValueHedgeIneffectiveness

0

USD

CY2016

us-gaap

Gain On Fair Value Hedge Ineffectiveness

GainOnFairValueHedgeIneffectiveness

0

USD

CY2017

us-gaap

Gain On Fair Value Hedge Ineffectiveness

GainOnFairValueHedgeIneffectiveness

0

USD

CY2015

us-gaap

Gains Losses On Sales Of Other Real Estate

GainsLossesOnSalesOfOtherRealEstate

0

USD

CY2016

us-gaap

Gains Losses On Sales Of Other Real Estate

GainsLossesOnSalesOfOtherRealEstate

0

USD

CY2017

us-gaap

Gains Losses On Sales Of Other Real Estate

GainsLossesOnSalesOfOtherRealEstate

0

USD

CY2016Q4

us-gaap

Goodwill

335100000

USD

CY2017Q4

us-gaap

Goodwill

338600000

USD

CY2015

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

8600000

USD

CY2016

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

2200000

USD

CY2017

us-gaap

Impaired Financing Receivable Average Recorded Investment

ImpairedFinancingReceivableAverageRecordedInvestment

0

USD

CY2015

us-gaap

Impaired Financing Receivable Interest Income Accrual Method

ImpairedFinancingReceivableInterestIncomeAccrualMethod

600000

USD

CY2016

us-gaap

Impaired Financing Receivable Interest Income Accrual Method

ImpairedFinancingReceivableInterestIncomeAccrualMethod

0

USD

CY2017

us-gaap

Impaired Financing Receivable Interest Income Accrual Method

ImpairedFinancingReceivableInterestIncomeAccrualMethod

0

USD

CY2016Q3

us-gaap

Impaired Financing Receivable Recorded Investment

ImpairedFinancingReceivableRecordedInvestment

5400000

USD

CY2015

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

5900000

USD

CY2016

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

5700000

USD

CY2017

us-gaap

Impairment Of Investments

ImpairmentOfInvestments

900000

USD

CY2015

us-gaap

Income Loss From Continuing Operations Before Income Taxes Domestic

IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic

1057800000

USD

CY2016

us-gaap

Income Loss From Continuing Operations Before Income Taxes Domestic

IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic

1215800000

USD

CY2017

us-gaap

Income Loss From Continuing Operations Before Income Taxes Domestic

IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic

1289000000

USD

CY2015

us-gaap

Income Loss From Continuing Operations Before Income Taxes Foreign

IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign

180500000

USD

CY2016

us-gaap

Income Loss From Continuing Operations Before Income Taxes Foreign

IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign

131900000

USD

CY2017

us-gaap

Income Loss From Continuing Operations Before Income Taxes Foreign

IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign

115000000

USD

CY2015

us-gaap

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