v2.4.1.9
Income Taxes (Income Tax Expense and Unrecognized Tax Benefits) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]      
Domestic Contribution to Income before Income Taxes 20.00%lly_DomesticContributionToIncomeBeforeIncomeTaxes 60.00%lly_DomesticContributionToIncomeBeforeIncomeTaxes 55.00%lly_DomesticContributionToIncomeBeforeIncomeTaxes
Income Tax Holiday, Termination Date 2016-12-31    
Income Tax Holiday, Commencement Date 2017-12-31    
Income Tax Holiday, Description P15Y    
Income Taxes Paid $ 729.7us-gaap_IncomeTaxesPaid $ 1,260.0us-gaap_IncomeTaxesPaid $ 992.0us-gaap_IncomeTaxesPaid
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate 1,050.1us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate 2,061.3us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate 1,892.9us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Income Tax Reconciliation, Deductions, Extraterritorial Income Exclusion (344.8)us-gaap_IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion (778.3)us-gaap_IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion (593.8)us-gaap_IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion
Income Tax Reconciliation, Tax Credits (44.3)us-gaap_IncomeTaxReconciliationTaxCredits (175.6)us-gaap_IncomeTaxReconciliationTaxCredits (11.2)us-gaap_IncomeTaxReconciliationTaxCredits
Income Tax Reconciliation, Other Adjustments (51.2)us-gaap_IncomeTaxReconciliationOtherAdjustments 97.1us-gaap_IncomeTaxReconciliationOtherAdjustments 31.7us-gaap_IncomeTaxReconciliationOtherAdjustments
Income taxes 609.8us-gaap_IncomeTaxExpenseBenefit 1,204.5us-gaap_IncomeTaxExpenseBenefit 1,319.6us-gaap_IncomeTaxExpenseBenefit
Unrecognized Tax Benefits, Beginning Balance 1,136.4us-gaap_UnrecognizedTaxBenefits 1,534.3us-gaap_UnrecognizedTaxBenefits 1,369.3us-gaap_UnrecognizedTaxBenefits
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions 126.4us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions 142.5us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions 144.8us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions 132.6us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 251.5us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 70.1us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions (32.1)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions (358.2)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions (38.5)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations (3.5)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations (24.9)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations (4.6)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities (4.2)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities (404.9)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities (9.2)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
Unrecognized Tax Benefits, Increases Resulting from Foreign Currency Translation (16.8)us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation (3.9)us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation 2.4us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation
Unrecognized Tax Benefits, Ending Balance 1,338.8us-gaap_UnrecognizedTaxBenefits 1,136.4us-gaap_UnrecognizedTaxBenefits 1,534.3us-gaap_UnrecognizedTaxBenefits
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 638.8us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate 523.3us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate  
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority 135us-gaap_IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority    
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense 35.9us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense (10.9)us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense 42.3us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued $ 207.2us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued $ 161.5us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued