XML 28 R89.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes (Effective Tax Rate Reconciliation) (Details)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Percentages      
U.S. statutory rate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Foreign tax rate differences (22.30%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential (28.80%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential (28.00%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
Unremitted earnings 0.00%us-gaap_EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings 0.00%us-gaap_EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings 18.80%us-gaap_EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings
State taxes, net of federal benefit 1.00%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes 0.60%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes 1.10%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Change in valuation allowance 0.20%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance 1.20%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance 0.40%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Acquisition related differences (0.30%)celg_EffectiveIncomeTaxRateReconciliationAcquisitionRelatedDifferences 3.70%celg_EffectiveIncomeTaxRateReconciliationAcquisitionRelatedDifferences 3.80%celg_EffectiveIncomeTaxRateReconciliationAcquisitionRelatedDifferences
Changes in uncertain tax positions (0.40%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxSettlements 0.80%us-gaap_EffectiveIncomeTaxRateReconciliationTaxSettlements (19.30%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxSettlements
Other 0.90%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments 0.40%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments 1.60%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments
Effective income tax rate 14.10%us-gaap_EffectiveIncomeTaxRateContinuingOperations 12.90%us-gaap_EffectiveIncomeTaxRateContinuingOperations 13.40%us-gaap_EffectiveIncomeTaxRateContinuingOperations
Swiss Federal Tax Administration FTA      
Operating Loss Carryforwards [Line Items]      
Maximum statutory Swiss income tax rate (as a percent) 18.40%celg_MaximumStatutoryForeignIncomeTaxRate
/ celg_IncomeTaxAuthorityNameAxis
= celg_SwissFederalTaxAdministrationFTAMember
19.70%celg_MaximumStatutoryForeignIncomeTaxRate
/ celg_IncomeTaxAuthorityNameAxis
= celg_SwissFederalTaxAdministrationFTAMember
21.00%celg_MaximumStatutoryForeignIncomeTaxRate
/ celg_IncomeTaxAuthorityNameAxis
= celg_SwissFederalTaxAdministrationFTAMember
Reduction in effective tax rates due to difference between maximum statutory Swiss income tax rate and the company's Swiss income tax rate under the tax holiday (as a percent) 18.00%celg_ReductionInEffectiveIncomeTaxUnderTaxHoliday
/ celg_IncomeTaxAuthorityNameAxis
= celg_SwissFederalTaxAdministrationFTAMember
25.10%celg_ReductionInEffectiveIncomeTaxUnderTaxHoliday
/ celg_IncomeTaxAuthorityNameAxis
= celg_SwissFederalTaxAdministrationFTAMember
26.60%celg_ReductionInEffectiveIncomeTaxUnderTaxHoliday
/ celg_IncomeTaxAuthorityNameAxis
= celg_SwissFederalTaxAdministrationFTAMember