$HUM
HUMANA INC Stock $hum

$hum Overview Financials Valuation SEC Filings Company Website

2013 Q4 Form 10-K Financial Statement

#000004907115000019 Filed on February 18, 2015

Income Statement

Concept	2013 Q4	2013 Q3	2013 Q2
Revenue	$10.19B	$10.32B	$10.32B
YoY Change	6.59%	6.92%	6.41%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin		$1.540B	$1.461B
YoY Change		9.38%	5.56%
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$114.0M	$106.0M	$104.0M
YoY Change	14.0%	35.9%	26.83%
% of Gross Profit
Operating Expenses	$10.20B	$1.540B	$1.461B
YoY Change	10.3%	9.38%	5.56%
Operating Profit		$621.0M	$689.0M
YoY Change		-11.41%	16.78%
Interest Expense	-$35.00M	$35.00M	$35.00M
YoY Change	29.63%	34.62%	34.62%
% of Operating Profit		5.64%	5.08%
Other Income/Expense, Net
YoY Change
Pretax Income	-$49.00M	$586.0M	$654.0M
YoY Change	-117.38%	-13.19%	15.96%
Income Tax	-$19.00M	$218.0M	$234.0M
% Of Pretax Income		37.2%	35.78%
Net Earnings	-$30.00M	$368.0M	$420.0M
YoY Change	-115.63%	-13.62%	17.98%
Net Earnings / Revenue	-0.29%	3.57%	4.07%
Basic Earnings Per Share	-$0.19	$2.34	$2.66
Diluted Earnings Per Share	-$0.19	$2.31	$2.63
COMMON SHARES
Basic Shares Outstanding		157.2M shares	158.0M shares
Diluted Shares Outstanding		158.9M shares	159.5M shares

Balance Sheet

Concept	2013 Q4	2013 Q3	2013 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$9.228B	$9.517B	$9.075B
YoY Change	-0.85%	1.02%	-22.77%
Cash & Equivalents	$1.138B	$1.255B	$1.519B
Short-Term Investments	$8.090B	$8.262B	$7.556B
Other Short-Term Assets	$2.122B	$2.232B	$1.960B
YoY Change	27.07%	38.2%	37.83%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$12.30B	$12.57B	$12.63B
YoY Change	5.04%	7.66%	-10.26%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.218B	$1.180B	$1.133B
YoY Change	10.93%	14.12%	16.09%
Goodwill	$3.253B	$3.716B	$3.638B
YoY Change	-10.63%	25.46%	30.3%
Intangibles	$693.0M	$724.0M	$675.0M
YoY Change	-5.2%	55.7%	53.41%
Long-Term Investments	$9.800B	$10.97B	$9.326B
YoY Change	-0.48%	10.88%	-3.51%
Other Assets	$1.774B	$1.697B	$1.679B
YoY Change	5.28%	31.96%	36.17%
Total Long-Term Assets	$8.435B	$8.330B	$8.220B
YoY Change	2.01%	17.01%	21.17%
TOTAL ASSETS
Total Short-Term Assets	$12.30B	$12.57B	$12.63B
Total Long-Term Assets	$8.435B	$8.330B	$8.220B
Total Assets	$20.74B	$20.90B	$20.85B
YoY Change	3.78%	11.2%	-0.03%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.821B	$2.010B	$2.174B
YoY Change	-10.82%	2.45%	4.47%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$403.0M	$273.0M	$246.0M
YoY Change	24.38%	-1.44%	-5.38%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$6.323B	$6.551B	$6.770B
YoY Change	-0.82%	2.86%	-21.97%
LONG-TERM LIABILITIES
Long-Term Debt	$2.600B	$2.603B	$2.606B
YoY Change	-0.42%	61.08%	61.06%
Other Long-Term Liabilities	$289.0M	$316.0M	$327.0M
YoY Change	0.35%	17.04%	1.87%
Total Long-Term Liabilities	$2.889B	$2.919B	$2.933B
YoY Change	-0.34%	54.77%	51.26%
TOTAL LIABILITIES
Total Short-Term Liabilities	$6.323B	$6.551B	$6.770B
Total Long-Term Liabilities	$2.889B	$2.919B	$2.933B
Total Liabilities	$11.42B	$11.30B	$11.51B
YoY Change	2.58%	11.79%	-7.15%
SHAREHOLDERS EQUITY
Retained Earnings	$8.942B	$9.014B	$8.688B
YoY Change	13.46%	16.6%	18.27%
Common Stock	$2.300B	$2.274B	$2.222B
YoY Change	7.83%	7.72%	6.06%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$2.084B	$1.878B	$1.784B
YoY Change	34.19%	21.32%	35.87%
Treasury Stock Shares	42.25M shares	40.21M shares	39.22M shares
Shareholders Equity	$9.316B	$9.606B	$9.335B
YoY Change
Total Liabilities & Shareholders Equity	$20.74B	$20.90B	$20.85B
YoY Change	3.78%	11.2%	-0.03%

Cashflow Statement

Concept	2013 Q4	2013 Q3	2013 Q2
OPERATING ACTIVITIES
Net Income	-$30.00M	$368.0M	$420.0M
YoY Change	-115.63%	-13.62%	17.98%
Depreciation, Depletion And Amortization	$114.0M	$106.0M	$104.0M
YoY Change	14.0%	35.9%	26.83%
Cash From Operating Activities	-$16.00M	$1.147B	$173.0M
YoY Change	-107.8%	-185.98%	-75.5%
INVESTING ACTIVITIES
Capital Expenditures	-$131.0M	-$123.0M	-$97.00M
YoY Change	23.58%	3.36%	-2.02%
Acquisitions
YoY Change
Other Investing Activities	$92.00M	-$872.0M	$341.0M
YoY Change	-108.32%	195.59%	-782.0%
Cash From Investing Activities	-$39.00M	-$995.0M	$244.0M
YoY Change	-96.78%	140.34%	-263.76%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-62.00M	-416.0M	-296.0M
YoY Change	-106.53%	-45.12%	-13.95%
NET CHANGE
Cash From Operating Activities	-16.00M	1.147B	173.0M
Cash From Investing Activities	-39.00M	-995.0M	244.0M
Cash From Financing Activities	-62.00M	-416.0M	-296.0M
Net Change In Cash	-117.0M	-264.0M	121.0M
YoY Change	105.26%	-89.47%	-43.19%
FREE CASH FLOW
Cash From Operating Activities	-$16.00M	$1.147B	$173.0M
Capital Expenditures	-$131.0M	-$123.0M	-$97.00M
Free Cash Flow	$115.0M	$1.270B	$270.0M
YoY Change	-63.02%	-204.53%	-66.46%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2014	dei	Amendment Flag AmendmentFlag	false
CY2014	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2014	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2014	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2014
CY2014	dei	Document Period End Date DocumentPeriodEndDate	2014-12-31
CY2014	dei	Document Type DocumentType	10-K
CY2014	dei	Entity Central Index Key EntityCentralIndexKey	0000049071
CY2015Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	149607897	shares
CY2014	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2014	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2014Q2	dei	Entity Public Float EntityPublicFloat	19712008342	USD
CY2014	dei	Entity Registrant Name EntityRegistrantName	HUMANA INC
CY2014	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2014	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2014	dei	Trading Symbol TradingSymbol	HUM
CY2013	hum	Adjustment To Future Policy Benefits Assuming Unrealized Gains On Investments Realized And Reinvested At Current Yields AdjustmentToFuturePolicyBenefitsAssumingUnrealizedGainsOnInvestmentsRealizedAndReinvestedAtCurrentYields	0	USD
CY2014	hum	Adjustment To Future Policy Benefits Assuming Unrealized Gains On Investments Realized And Reinvested At Current Yields AdjustmentToFuturePolicyBenefitsAssumingUnrealizedGainsOnInvestmentsRealizedAndReinvestedAtCurrentYields	123000000	USD
CY2013Q4	hum	After Tax Impact Of Charge AfterTaxImpactOfCharge	154000000	USD
CY2014	hum	Amount Held In Cash And Securities In Trust At Least Equal To Recoverable From Reinsurer AmountHeldInCashAndSecuritiesInTrustAtLeastEqualToRecoverableFromReinsurer	99000000	USD
CY2012	hum	Benefit Expenses Associated With Military Services And Provisions Associated With Future Policy Benefits BenefitExpensesAssociatedWithMilitaryServicesAndProvisionsAssociatedWithFuturePolicyBenefits	1044000000	USD
CY2013	hum	Benefit Expenses Associated With Military Services And Provisions Associated With Future Policy Benefits BenefitExpensesAssociatedWithMilitaryServicesAndProvisionsAssociatedWithFuturePolicyBenefits	327000000	USD
CY2014	hum	Benefit Expenses Associated With Military Services And Provisions Associated With Future Policy Benefits BenefitExpensesAssociatedWithMilitaryServicesAndProvisionsAssociatedWithFuturePolicyBenefits	43000000	USD
CY2012	hum	Benefits Payable Acquired Balances BenefitsPayableAcquiredBalances	66000000	USD
CY2013	hum	Benefits Payable Acquired Balances BenefitsPayableAcquiredBalances	5000000	USD
CY2014	hum	Benefits Payable Acquired Balances BenefitsPayableAcquiredBalances	0	USD
CY2012	hum	Charge Related To Closed Block Of Long Term Care Policies ChargeRelatedToClosedBlockOfLongTermCarePolicies	29000000	USD
CY2013Q4	hum	Charge Related To Closed Block Of Long Term Care Policies ChargeRelatedToClosedBlockOfLongTermCarePolicies	243000000	USD
CY2013	hum	Charge Related To Closed Block Of Long Term Care Policies ChargeRelatedToClosedBlockOfLongTermCarePolicies	243000000	USD
CY2014	hum	Closing Stock Price ClosingStockPrice	143.63
CY2014	hum	Combination Of Age And Years Necessary For Retirement Provision As Related To Our Equity Award Program CombinationOfAgeAndYearsNecessaryForRetirementProvisionAsRelatedToOurEquityAwardProgram	P65Y
CY2014	hum	Consumer Discounts On Brand Name Prescription Drugs ConsumerDiscountsOnBrandNamePrescriptionDrugs	0.5
CY2013Q4	hum	Deferred Tax Assets Deferred Policy Acquisition Cost DeferredTaxAssetsDeferredPolicyAcquisitionCost	46000000	USD
CY2014Q4	hum	Deferred Tax Assets Deferred Policy Acquisition Cost DeferredTaxAssetsDeferredPolicyAcquisitionCost	57000000	USD
CY2013Q4	hum	Deferred Tax Assets Future Policy Benefits Payable DeferredTaxAssetsFuturePolicyBenefitsPayable	303000000	USD
CY2014Q4	hum	Deferred Tax Assets Future Policy Benefits Payable DeferredTaxAssetsFuturePolicyBenefitsPayable	320000000	USD
CY2013Q4	hum	Deferred Tax Liabilities Depreciable Property And Intangible Assets DeferredTaxLiabilitiesDepreciablePropertyAndIntangibleAssets	453000000	USD
CY2014Q4	hum	Deferred Tax Liabilities Depreciable Property And Intangible Assets DeferredTaxLiabilitiesDepreciablePropertyAndIntangibleAssets	410000000	USD
CY2012	hum	Depreciation And Amortization Classified As Benefit Expense DepreciationAndAmortizationClassifiedAsBenefitExpense	43000000	USD
CY2013	hum	Depreciation And Amortization Classified As Benefit Expense DepreciationAndAmortizationClassifiedAsBenefitExpense	93000000	USD
CY2014	hum	Depreciation And Amortization Classified As Benefit Expense DepreciationAndAmortizationClassifiedAsBenefitExpense	116000000	USD
CY2012	hum	Depreciation And Amortization Income Statement DepreciationAndAmortizationIncomeStatement	295000000	USD
CY2013	hum	Depreciation And Amortization Income Statement DepreciationAndAmortizationIncomeStatement	333000000	USD
CY2014	hum	Depreciation And Amortization Income Statement DepreciationAndAmortizationIncomeStatement	333000000	USD
CY2014	hum	Dividends To Parent Without Prior State Regulatory Approval DividendsToParentWithoutPriorStateRegulatoryApproval	927000000	USD
CY2012	hum	Effective Income Tax Rate Reconciliation Health Insurer Fee Amount EffectiveIncomeTaxRateReconciliationHealthInsurerFeeAmount	0	USD
CY2013	hum	Effective Income Tax Rate Reconciliation Health Insurer Fee Amount EffectiveIncomeTaxRateReconciliationHealthInsurerFeeAmount	0	USD
CY2014	hum	Effective Income Tax Rate Reconciliation Health Insurer Fee Amount EffectiveIncomeTaxRateReconciliationHealthInsurerFeeAmount	204000000	USD
CY2012	hum	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options And Restricted Stock Vesting EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptionsAndRestrictedStockVesting	43000000	USD
CY2013	hum	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options And Restricted Stock Vesting EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptionsAndRestrictedStockVesting	20000000	USD
CY2014	hum	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options And Restricted Stock Vesting EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptionsAndRestrictedStockVesting	30000000	USD
CY2012	hum	Favorable Medical Claims Reserve Development Related To Prior Fiscal Years FavorableMedicalClaimsReserveDevelopmentRelatedToPriorFiscalYears	257000000	USD
CY2013	hum	Favorable Medical Claims Reserve Development Related To Prior Fiscal Years FavorableMedicalClaimsReserveDevelopmentRelatedToPriorFiscalYears	474000000	USD
CY2014	hum	Favorable Medical Claims Reserve Development Related To Prior Fiscal Years FavorableMedicalClaimsReserveDevelopmentRelatedToPriorFiscalYears	518000000	USD
CY2014	hum	General Obligation Bonds As Percentage Of Tax Exempt Municipal Securities That Were Not Pre Refunded GeneralObligationBondsAsPercentageOfTaxExemptMunicipalSecuritiesThatWereNotPreRefunded	0.36
CY2012	hum	Government And Health Plan Member Subsidies Amount GovernmentAndHealthPlanMemberSubsidiesAmount	6300000000	USD
CY2013	hum	Government And Health Plan Member Subsidies Amount GovernmentAndHealthPlanMemberSubsidiesAmount	7300000000	USD
CY2014	hum	Government And Health Plan Member Subsidies Amount GovernmentAndHealthPlanMemberSubsidiesAmount	9700000000	USD
CY2013Q4	hum	Impact On Eps Of Charge ImpactOnEPSOfCharge	0.99
CY2013Q4	hum	Increase To Future Policy Benefits Payable IncreaseToFuturePolicyBenefitsPayable	350000000	USD
CY2013Q4	hum	Increase To Reinsurance Recoverable IncreaseToReinsuranceRecoverable	107000000	USD
CY2014	hum	Maximum Carrying Value Of Reinsurance Recoverables For Number Of Reinsurers MaximumCarryingValueOfReinsuranceRecoverablesForNumberOfReinsurers	80000000	USD
CY2012	hum	Maximum Deductibility Of Annual Compensation Per Employee As Mandated By Health Reforms MaximumDeductibilityOfAnnualCompensationPerEmployeeAsMandatedByHealthReforms	500000	USD
CY2013	hum	Maximum Deductibility Of Annual Compensation Per Employee As Mandated By Health Reforms MaximumDeductibilityOfAnnualCompensationPerEmployeeAsMandatedByHealthReforms	500000	USD
CY2014	hum	Maximum Deductibility Of Annual Compensation Per Employee As Mandated By Health Reforms MaximumDeductibilityOfAnnualCompensationPerEmployeeAsMandatedByHealthReforms	500000	USD
CY2014	hum	Maximum Percentage Of Any General Obligation Bonds In One State MaximumPercentageOfAnyGeneralObligationBondsInOneState	0.11
CY2012	hum	Military Services Benefit Expense Benefit MilitaryServicesBenefitExpenseBenefit	908000000	USD
CY2013	hum	Military Services Benefit Expense Benefit MilitaryServicesBenefitExpenseBenefit	-27000000	USD
CY2014	hum	Military Services Benefit Expense Benefit MilitaryServicesBenefitExpenseBenefit	11000000	USD
CY2014	hum	Minimum Age Required For Retirement Eligibility As Related To Our Equity Award Program MinimumAgeRequiredForRetirementEligibilityAsRelatedToOurEquityAwardProgram	P55Y
CY2014	hum	Minimum Number Of Years Of Service For Retirement Eligibility As Related To Our Equity Award Program MinimumNumberOfYearsOfServiceForRetirementEligibilityAsRelatedToOurEquityAwardProgram	P5Y
CY2013Q4	hum	Net Asset Liability Deferred Acquisition Cost NetAssetLiabilityDeferredAcquisitionCost	166000000	USD
CY2014Q4	hum	Net Asset Liability Deferred Acquisition Cost NetAssetLiabilityDeferredAcquisitionCost	167000000	USD
CY2013Q4	hum	Net Asset Liability Future Policy Benefits Payable NetAssetLiabilityFuturePolicyBenefitsPayable	2274000000	USD
CY2014Q4	hum	Net Asset Liability Future Policy Benefits Payable NetAssetLiabilityFuturePolicyBenefitsPayable	2417000000	USD
CY2014Q4	hum	Net Operating Lease Commitment Thereafter NetOperatingLeaseCommitmentThereafter	355000000	USD
CY2014Q4	hum	Net Operating Lease Commitment Total NetOperatingLeaseCommitmentTotal	1066000000	USD
CY2014Q4	hum	Net Operating Lease Commitment Within Year Five NetOperatingLeaseCommitmentWithinYearFive	69000000	USD
CY2014Q4	hum	Net Operating Lease Commitment Within Year Four NetOperatingLeaseCommitmentWithinYearFour	97000000	USD
CY2014Q4	hum	Net Operating Lease Commitment Within Year One NetOperatingLeaseCommitmentWithinYearOne	215000000	USD
CY2014Q4	hum	Net Operating Lease Commitment Within Year Three NetOperatingLeaseCommitmentWithinYearThree	148000000	USD
CY2014Q4	hum	Net Operating Lease Commitment Within Year Two NetOperatingLeaseCommitmentWithinYearTwo	182000000	USD
CY2014	hum	Number Of Days Notice For Employer Group To Cancel Short Duration Prepaid Health Services Policies NumberOfDaysNoticeForEmployerGroupToCancelShortDurationPrepaidHealthServicesPolicies	P30D
CY2014	hum	Number Of Reinsurers Comprising Other Reinsurance Recoverables Balance NumberOfReinsurersComprisingOtherReinsuranceRecoverablesBalance	16	Reinsurer
CY2014Q4	hum	Number Of Reinsurers Who Have Placed Cash And Securities In Trusts NumberOfReinsurersWhoHavePlacedCashAndSecuritiesInTrusts	3	Reinsurer
CY2014Q4	hum	Number Of Shares Of Our Common Stock Reserved For Issuance Under Our Defined Contribution Retirement Savings Plans NumberOfSharesOfOurCommonStockReservedForIssuanceUnderOurDefinedContributionRetirementSavingsPlans	4100000	shares
CY2010	hum	Operating Lease Rental Expenses Net OperatingLeaseRentalExpensesNet	207000000	USD
CY2013	hum	Operating Lease Rental Expenses Net OperatingLeaseRentalExpensesNet	216000000	USD
CY2014	hum	Operating Lease Rental Expenses Net OperatingLeaseRentalExpensesNet	212000000	USD
CY2013Q4	hum	Other Long Term Assets Deferred Acquisition Costs OtherLongTermAssetsDeferredAcquisitionCosts	166000000	USD
CY2014Q4	hum	Other Long Term Assets Deferred Acquisition Costs OtherLongTermAssetsDeferredAcquisitionCosts	167000000	USD
CY2013Q4	hum	Other Long Term Assets Future Policy Benefits Payable OtherLongTermAssetsFuturePolicyBenefitsPayable	0	USD
CY2014Q4	hum	Other Long Term Assets Future Policy Benefits Payable OtherLongTermAssetsFuturePolicyBenefitsPayable	0	USD
CY2013Q4	hum	Other Long Term Liabilities Deferred Acquisition Cost OtherLongTermLiabilitiesDeferredAcquisitionCost	0	USD
CY2014Q4	hum	Other Long Term Liabilities Deferred Acquisition Cost OtherLongTermLiabilitiesDeferredAcquisitionCost	0	USD
CY2014	hum	Percent Of Consolidated Premiums And Services Revenues Related To Long Duration Insurance Products PercentOfConsolidatedPremiumsAndServicesRevenuesRelatedToLongDurationInsuranceProducts	0.02
CY2014Q4	hum	Percentage Of Collateral Related To Prime Loan PercentageOfCollateralRelatedToPrimeLoan	0.99
CY2013Q4	hum	Percentage Of Corporate Securities Associated With Financial Services Industry PercentageOfCorporateSecuritiesAssociatedWithFinancialServicesIndustry	0.23
CY2014Q4	hum	Percentage Of Corporate Securities Associated With Financial Services Industry PercentageOfCorporateSecuritiesAssociatedWithFinancialServicesIndustry	0.21
CY2014	hum	Percentage Of Premiums And Services Revenues Derived From Contracts With Federal Government PercentageOfPremiumsAndServicesRevenuesDerivedFromContractsWithFederalGovernment	0.73
CY2014	hum	Percentage Of Retirement And Savings Plan S Assets Invested In Our Common Stock As Compared To Company S Outstanding Shares At Year End PercentageOfRetirementAndSavingsPlanSAssetsInvestedInOurCommonStockAsComparedToCompanySOutstandingSharesAtYearEnd	0.02
CY2014	hum	Percentage Of Retirement And Savings Plan S Assets Invested In Our Company Common Stock PercentageOfRetirementAndSavingsPlanSAssetsInvestedInOurCompanyCommonStock	0.13
CY2014Q4	hum	Percentage Of Tax Exempt Securities PercentageOfTaxExemptSecurities	0.16
CY2014Q4	hum	Percentage Of Tax Exempt To Municipal Securities Classified As Pre Refunded PercentageOfTaxExemptToMunicipalSecuritiesClassifiedAsPreRefunded	0.07
CY2014Q4	hum	Percentage Of Total Debt Securities PercentageOfTotalDebtSecurities	0.96
CY2012	hum	Percentage Of Total Premium And Services Revenues Derived From Contracts With Federal Government PercentageOfTotalPremiumAndServicesRevenuesDerivedFromContractsWithFederalGovernment	0.75
CY2013	hum	Percentage Of Total Premium And Services Revenues Derived From Contracts With Federal Government PercentageOfTotalPremiumAndServicesRevenuesDerivedFromContractsWithFederalGovernment	0.75
CY2014	hum	Percentage Of Total Premium And Services Revenues Derived From Contracts With Federal Government PercentageOfTotalPremiumAndServicesRevenuesDerivedFromContractsWithFederalGovernment	0.73
CY2012	hum	Share Repurchases Related To Employee Stock Based Compensation Awards Shares ShareRepurchasesRelatedToEmployeeStockBasedCompensationAwardsShares	700000	shares
CY2013	hum	Share Repurchases Related To Employee Stock Based Compensation Awards Shares ShareRepurchasesRelatedToEmployeeStockBasedCompensationAwardsShares	300000	shares
CY2014	hum	Share Repurchases Related To Employee Stock Based Compensation Awards Shares ShareRepurchasesRelatedToEmployeeStockBasedCompensationAwardsShares	400000	shares
CY2012	hum	Share Repurchases Related To Employee Stock Based Compensation Awards Value ShareRepurchasesRelatedToEmployeeStockBasedCompensationAwardsValue	58000000	USD
CY2013	hum	Share Repurchases Related To Employee Stock Based Compensation Awards Value ShareRepurchasesRelatedToEmployeeStockBasedCompensationAwardsValue	29000000	USD
CY2014	hum	Share Repurchases Related To Employee Stock Based Compensation Awards Value ShareRepurchasesRelatedToEmployeeStockBasedCompensationAwardsValue	42000000	USD
CY2014Q4	hum	Shares Of Retirement And Savings Plans Invested In Our Companys Common Stock SharesOfRetirementAndSavingsPlansInvestedInOurCompanysCommonStock	2800000	shares
CY2014	hum	Special Revenue Bonds As Percentage Of Tax Exempt Municipal Securities That Were Not Pre Refunded SpecialRevenueBondsAsPercentageOfTaxExemptMunicipalSecuritiesThatWereNotPreRefunded	0.64
CY2012	hum	Stock Based Compensation Expense Net Of Tax StockBasedCompensationExpenseNetOfTax	61000000	USD
CY2013	hum	Stock Based Compensation Expense Net Of Tax StockBasedCompensationExpenseNetOfTax	70000000	USD
CY2014	hum	Stock Based Compensation Expense Net Of Tax StockBasedCompensationExpenseNetOfTax	76000000	USD
CY2013Q4	hum	Trade Accounts Payable And Accrued Expenses Deferred Acquisition Cost TradeAccountsPayableAndAccruedExpensesDeferredAcquisitionCost	0	USD
CY2014Q4	hum	Trade Accounts Payable And Accrued Expenses Deferred Acquisition Cost TradeAccountsPayableAndAccruedExpensesDeferredAcquisitionCost	0	USD
CY2013Q4	hum	Trade Accounts Payable And Accrued Expenses Future Policy Benefits Payable TradeAccountsPayableAndAccruedExpensesFuturePolicyBenefitsPayable	67000000	USD
CY2014Q4	hum	Trade Accounts Payable And Accrued Expenses Future Policy Benefits Payable TradeAccountsPayableAndAccruedExpensesFuturePolicyBenefitsPayable	68000000	USD
CY2014	hum	Typical Term In Years Of Short Duration Employer Group Prepaid Health Services Policies TypicalTermInYearsOfShortDurationEmployerGroupPrepaidHealthServicesPolicies	P1Y
CY2014	hum	Uncommitment Incremental Loan Facility UncommitmentIncrementalLoanFacility	250000000	USD
CY2014Q4	hum	Upper Limit Percentage Of Level Three Assets To Total Invested Assets UpperLimitPercentageOfLevelThreeAssetsToTotalInvestedAssets	0.003
CY2013Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1821000000	USD
CY2014Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	2185000000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1530000000	USD
CY2014Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1787000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	158000000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	223000000	USD
CY2013Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2267000000	USD
CY2014Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2330000000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	82000000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	92000000	USD
CY2014	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	98000000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	21000000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	8000000	USD
CY2014	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	13000000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	118000000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	137000000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	75000000	USD
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	117000000	USD
CY2014	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	121000000	USD
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	754000	shares
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	704000	shares
CY2014	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	320000	shares
CY2013Q4	us-gaap	Assets Assets	20735000000	USD
CY2014Q4	us-gaap	Assets Assets	23466000000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	12300000000	USD
CY2014Q4	us-gaap	Assets Current AssetsCurrent	14712000000	USD
CY2013Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	377000000	USD
CY2014Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	516000000	USD
CY2013Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	127000000	USD
CY2014Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	41000000	USD
CY2013Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	9800000000	USD
CY2014Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	9547000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	9550000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	9072000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	9000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	33000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	127000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	41000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	3046000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1413000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	118000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	8000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	2905000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	496000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	141000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	917000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	2036000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	2145000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	2060000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	2164000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	2102000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	2317000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	530000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	534000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	2344000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	2387000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	8090000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	7598000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	1710000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	1949000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	33000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	22000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	38000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	33000000	USD
CY2014	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	29000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	5000000	USD
CY2014	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	20000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	11000000	USD
CY2014	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	9000000	USD
CY2012	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	37110000000	USD
CY2013	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	39252000000	USD
CY2014	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	46138000000	USD
CY2013Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	693000000	USD
CY2014Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	763000000	USD
CY2012	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	151000000	USD
CY2013	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	172000000	USD
CY2014	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	191000000	USD
CY2013Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	1396000000	USD
CY2014Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	1714000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1377000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1306000000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1138000000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1935000000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-71000000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-168000000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	797000000	USD
CY2012	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	1200000000	USD
CY2013	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	967000000	USD
CY2014	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	927000000	USD
CY2012	us-gaap	Ceded Premiums Written CededPremiumsWritten	34000000	USD
CY2013	us-gaap	Ceded Premiums Written CededPremiumsWritten	33000000	USD
CY2014	us-gaap	Ceded Premiums Written CededPremiumsWritten	357000000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.02
CY2013	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.06
CY2014	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.10
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.03
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.07
CY2014	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.11
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.1667
CY2014Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.1667
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	300000000	shares
CY2014Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	300000000	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	196275506	shares
CY2014Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	197951551	shares
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	33000000	USD
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	33000000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1305000000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1003000000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1212000000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	708000000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	595000000	USD
CY2014	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1006000000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	769000000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	648000000	USD
CY2014	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1087000000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	61000000	USD
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CY2014	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	81000000	USD
CY2013Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	2751000000	USD
CY2014Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	4102000000	USD
CY2014	us-gaap	Debt Instrument Interest Rate Effective Percentage Rate Range Maximum DebtInstrumentInterestRateEffectivePercentageRateRangeMaximum	0.0665
CY2014	us-gaap	Debt Instrument Interest Rate Effective Percentage Rate Range Minimum DebtInstrumentInterestRateEffectivePercentageRateRangeMinimum	0.0098
CY2014	us-gaap	Debt Instrument Redemption Price Percentage Of Principal Amount Redeemed DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed	1
CY2014Q4	us-gaap	Debtor In Possession Financing Letters Of Credit Outstanding DebtorInPossessionFinancingLettersOfCreditOutstanding	4000000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-80000000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	42000000	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-64000000	USD
CY2014Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	31000000	USD
CY2012	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	44000000	USD
CY2013	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	55000000	USD
CY2014	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	39000000	USD
CY2013Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	66000000	USD
CY2014Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	59000000	USD
CY2013Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	206000000	USD
CY2014Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	361000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	716000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	782000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	74000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	101000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	60000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	87000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	14000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	14000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	688000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	734000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	51000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	52000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	10000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	18000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	185000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	176000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	111000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	138000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	10000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Valuation Allowance Current DeferredTaxAssetsValuationAllowanceCurrent	108000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	614000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	21000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	28000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	48000000	USD
CY2014	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	173000000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.56
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.97
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.66
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.34
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.19
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.81
CY2014Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.37
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.22
CY2014Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.87
CY2014Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	633000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	0	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	0	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	83000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	55000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	78000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	168000000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	138000000	USD
CY2013	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	155000000	USD
CY2014	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	176000000	USD
CY2012	us-gaap	Depreciation Depreciation	263000000	USD
CY2013	us-gaap	Depreciation Depreciation	309000000	USD
CY2014	us-gaap	Depreciation Depreciation	328000000	USD
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	338000000	USD
CY2013	us-gaap	Depreciation And Amortization DepreciationAndAmortization	426000000	USD
CY2014	us-gaap	Depreciation And Amortization DepreciationAndAmortization	449000000	USD
CY2012	us-gaap	Dividends Dividends	165000000	USD
CY2013	us-gaap	Dividends Dividends	167000000	USD
CY2014	us-gaap	Dividends Dividends	170000000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	166000000	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	170000000	USD
CY2014Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.96
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.44
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.47
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.95
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.63
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.31
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.19
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.73
CY2014Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.35
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.19
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.85
CY2014Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.94
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.36
CY2012	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	60000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	67000000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	52000000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	21000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	22000000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	22000000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	22000000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	8000000	USD
CY2014	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	12000000	USD
CY2013Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0	USD
CY2014Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	3000000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	0	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	5000000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	0	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	1000000	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	0	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	41000000	USD
CY2012Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	38000000	USD
CY2013Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	37000000	USD
CY2014Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	32000000	USD
CY2012	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	1535000000	USD
CY2013	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	196000000	USD
CY2014	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	18000000	USD
CY2014	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P10Y5M24D
CY2013Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	402000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	492000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	101000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	66000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	78000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	85000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	94000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1095000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1064000000	USD
CY2014Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions FutureMinimumSubleaseRentalsSaleLeasebackTransactions	79000000	USD
CY2014Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Thereafter FutureMinimumSubleaseRentalsSaleLeasebackTransactionsThereafter	9000000	USD
CY2014Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Within Five Years FutureMinimumSubleaseRentalsSaleLeasebackTransactionsWithinFiveYears	9000000	USD
CY2014Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Within Four Years FutureMinimumSubleaseRentalsSaleLeasebackTransactionsWithinFourYears	13000000	USD
CY2014Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Within One Year FutureMinimumSubleaseRentalsSaleLeasebackTransactionsWithinOneYear	17000000	USD
CY2014Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Within Three Years FutureMinimumSubleaseRentalsSaleLeasebackTransactionsWithinThreeYears	15000000	USD
CY2014Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Within Two Years FutureMinimumSubleaseRentalsSaleLeasebackTransactionsWithinTwoYears	16000000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	3640000000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	3733000000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	3711000000	USD
CY2013	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	116000000	USD
CY2014	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	19000000	USD
CY2013	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	-6000000	USD
CY2014	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	-1000000	USD
CY2013	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	17000000	USD
CY2014	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	40000000	USD
CY2012	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2013	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2014	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1911000000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	730000000	USD
CY2013Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	654000000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	586000000	USD
CY2013Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-49000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1921000000	USD
CY2014Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	686000000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	646000000	USD
CY2014Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	551000000	USD
CY2014Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	287000000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	2170000000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	689000000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	690000000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1023000000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	669000000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	672000000	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	759000000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	14000000	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	6000000	USD
CY2014	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	22000000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	5000000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	6000000	USD
CY2014	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	17000000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	27000000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	32000000	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	48000000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	26000000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	26000000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	27000000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	745000000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	734000000	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1030000000	USD
CY2012	us-gaap	Increase Decrease In Book Overdrafts IncreaseDecreaseInBookOverdrafts	18000000	USD
CY2013	us-gaap	Increase Decrease In Book Overdrafts IncreaseDecreaseInBookOverdrafts	79000000	USD
CY2014	us-gaap	Increase Decrease In Book Overdrafts IncreaseDecreaseInBookOverdrafts	-69000000	USD
CY2012	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	80000000	USD
CY2013	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-42000000	USD
CY2014	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	64000000	USD
CY2012	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-43000000	USD
CY2013	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-24000000	USD
CY2014	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	155000000	USD
CY2012	us-gaap	Increase Decrease In Health Care Insurance Liabilities IncreaseDecreaseInHealthCareInsuranceLiabilities	-41000000	USD
CY2013	us-gaap	Increase Decrease In Health Care Insurance Liabilities IncreaseDecreaseInHealthCareInsuranceLiabilities	109000000	USD
CY2014	us-gaap	Increase Decrease In Health Care Insurance Liabilities IncreaseDecreaseInHealthCareInsuranceLiabilities	582000000	USD
CY2012	us-gaap	Increase Decrease In Other Deposits IncreaseDecreaseInOtherDeposits	-397000000	USD
CY2013	us-gaap	Increase Decrease In Other Deposits IncreaseDecreaseInOtherDeposits	-150000000	USD
CY2014	us-gaap	Increase Decrease In Other Deposits IncreaseDecreaseInOtherDeposits	-919000000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	253000000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	330000000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	952000000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-79000000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-93000000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-42000000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	300000000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	313000000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	413000000	USD
CY2012	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-326000000	USD
CY2013	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	251000000	USD
CY2014	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	264000000	USD
CY2013Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	693000000	USD
CY2014Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	572000000	USD
CY2012	us-gaap	Interest Expense InterestExpense	105000000	USD
CY2013	us-gaap	Interest Expense InterestExpense	140000000	USD
CY2014	us-gaap	Interest Expense InterestExpense	192000000	USD
CY2012	us-gaap	Interest Paid InterestPaid	110000000	USD
CY2013	us-gaap	Interest Paid InterestPaid	146000000	USD
CY2014	us-gaap	Interest Paid InterestPaid	143000000	USD
CY2012	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	391000000	USD
CY2013	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	375000000	USD
CY2014	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	377000000	USD
CY2013Q4	us-gaap	Land Land	20000000	USD
CY2014Q4	us-gaap	Land Land	20000000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	218000000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	227000000	USD
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	226000000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	11419000000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	13820000000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	20735000000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	23466000000	USD
CY2012	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	300000000	USD
CY2013	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	9000000	USD
CY2014	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	0	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	6323000000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	7355000000	USD
CY2013Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	3893000000	USD
CY2014Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	4475000000	USD
CY2013Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	2207000000	USD
CY2014Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	2349000000	USD
CY2012	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	136000000	USD
CY2013	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	354000000	USD
CY2014	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	32000000	USD
CY2012	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	26738000000	USD
CY2013	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	29103000000	USD
CY2014	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	34357000000	USD
CY2012	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	2909000000	USD
CY2013	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	3021000000	USD
CY2014	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	3262000000	USD
CY2012	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	29941000000	USD
CY2013	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	32237000000	USD
CY2014	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	38123000000	USD
CY2011Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	3415000000	USD
CY2012Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	3775000000	USD
CY2013Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	3893000000	USD
CY2014Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	4475000000	USD
CY2014Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2014	us-gaap	Line Of Credit Facility Covenant Terms LineOfCreditFacilityCovenantTerms	The terms of the credit agreement include standard provisions related to conditions of borrowing, including a customary material adverse effect clause which could limit our ability to borrow additional funds. In addition, the credit agreement contains customary restrictive and financial covenants as well as customary events of default, including financial covenants regarding the maintenance of a minimum level of net worth of $7.8 billion at December 31, 2014 and a maximum leverage ratio of 3.0:1. We are in compliance with the financial covenants, with actual net worth of $9.6 billion and actual leverage ratio of 1.4:1, as measured in accordance with the credit agreement as of December 31, 2014.
CY2014Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	996000000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2600000000	USD
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3825000000	USD
CY2013Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	639000000	USD
CY2014Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	709000000	USD
CY2014Q4	us-gaap	Minimum Net Capital Required1 MinimumNetCapitalRequired1	7800000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-29000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-702000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-758000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1965000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1182000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-63000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1923000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1716000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1618000000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	1222000000	USD
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	473000000	USD
CY2013Q2	us-gaap	Net Income Loss NetIncomeLoss	420000000	USD
CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	368000000	USD
CY2013Q4	us-gaap	Net Income Loss NetIncomeLoss	-30000000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	1231000000	USD
CY2014Q1	us-gaap	Net Income Loss NetIncomeLoss	368000000	USD
CY2014Q2	us-gaap	Net Income Loss NetIncomeLoss	344000000	USD
CY2014Q3	us-gaap	Net Income Loss NetIncomeLoss	290000000	USD
CY2014Q4	us-gaap	Net Income Loss NetIncomeLoss	145000000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	1147000000	USD
CY2014	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	Segment
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	2016000000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	2061000000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	2362000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	1145000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	232000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	78000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	110000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	163000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	198000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	364000000	USD
CY2010	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	11000000	USD
CY2013	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	11000000	USD
CY2014	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	14000000	USD
CY2014Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	141000000	USD
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	2122000000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	4011000000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1774000000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1675000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	83000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-228000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	65000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	33000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	22000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	20000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	21000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	14000000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	3221000000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	3261000000	USD
CY2014	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2883000000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1235000000	USD
CY2013	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	187000000	USD
CY2014	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	18000000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	410000000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	441000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	13000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	12000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	8000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	7000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	164000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-338000000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	122000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	104000000	USD
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CY2014	us-gaap	Share Based Compensation ShareBasedCompensation	98000000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	75000000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	52000000	USD
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CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	19300000	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	179000	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	67.57
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	45000000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	39000000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	32000000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	33000	shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	244000	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	49000000	USD
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1272000	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	768000	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	72.81
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	82.45
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	72.27
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	82.78
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	102.91
CY2014Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	14000000	USD
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y1M6D
CY2013Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Balance StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance	5500000000	USD
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CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	9316000000	USD
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CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	42245097	shares
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CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2084000000	USD
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CY2013	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	531000000	USD
CY2014	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	872000000	USD
CY2014Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	94000000	USD
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CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	157503000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	154187000	shares
CY2014	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">REPORTING ENTITY</font></div><div style="line-height:120%;padding-bottom:12px;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Nature of Operations</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Humana Inc., headquartered in Louisville, Kentucky, is a leading health and well-being company focused on making it easy for people to achieve their best health with clinical excellence through coordinated care. The company’s strategy integrates care delivery, the member experience, and clinical and consumer insights to encourage engagement, behavior change, proactive clinical outreach and wellness for the millions of people we serve across the country. References throughout these notes to consolidated financial statements to “we,” “us,” “our,” “Company,” and “Humana,” mean Humana Inc. and its subsidiaries. We derived approximately </font><font style="font-family:inherit;font-size:10pt;">73%</font><font style="font-family:inherit;font-size:10pt;"> of our total premiums and services revenue from contracts with the federal government in </font><font style="font-family:inherit;font-size:10pt;">2014</font><font style="font-family:inherit;font-size:10pt;">, including </font><font style="font-family:inherit;font-size:10pt;">15%</font><font style="font-family:inherit;font-size:10pt;"> related to our federal government contracts with the Centers for Medicare and Medicaid Services, or CMS, to provide health insurance coverage for individual Medicare Advantage members in Florida. CMS is the federal government’s agency responsible for administering the Medicare program.</font></div></div>

Files In Submission

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$HUM
HUMANA INC Stock $hum

2013 Q4 Form 10-K Financial Statement

#000004907115000019 Filed on February 18, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HUM HUMANA INC Stock $hum

2013 Q4 Form 10-K Financial Statement

#000004907115000019 Filed on February 18, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HUM
HUMANA INC Stock $hum