UBmatrix Calculation Trace Report
Line Concept Weight Decimals Precision Reported Calculated Source Message
1 Extended Link [ http://biogenidec.com/20090630/StatementsOfCashFlows ]
2 Context SixMonthsEnded_30Jun2008 [ 2008-01-01 - 2008-06-30 ]
c-equal
3 Unit USD
u-equal
us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease -3 [6] -195300000 -195,300,000 Instance OK
us-gaap:NetCashProvidedByUsedInOperatingActivities 1.0 -3 [6] 643007000 139,079,000 Instance Inconsistency found, calculated value is 139,079,000
biib:ProfitLoss -1.0 -3 [6] 373880000 373,880,000 Instance
us-gaap:DepreciationAndAmortization 1.0 -3 [6] 212471000 212,471,000 Instance
us-gaap:ResearchAndDevelopmentInProcess 1.0 -3 [5] 25000000 25,000,000 Instance
us-gaap:ShareBasedCompensation 1.0 -3 [5] 67647000 67,647,000 Instance
us-gaap:OtherNoncashExpense 1.0 -3 [5] 12151000 12,151,000 Instance
us-gaap:DeferredIncomeTaxExpenseBenefit 1.0 -3 [5] -14757000 -14,757,000 Instance
us-gaap:GainLossOnInvestments 1.0 -3 [4] -5928000 -5,928,000 Instance
us-gaap:WriteOffOfInventory 1.0 -3 [4] 9838000 9,838,000 Instance
us-gaap:ImpairmentOfInvestments 1.0 -3 [5] 15451000 15,451,000 Instance
us-gaap:IncreaseDecreaseInAccountsReceivable -1.0 -3 [5] -86302000 -86,302,000 Instance
biib:IncreaseDecreaseInDueFromUnconsolidatedJointBusiness 1.0 -3 [5] -17535000 -17,535,000 Instance
us-gaap:IncreaseDecreaseInInventories -1.0 -3 [5] -28187000 -28,187,000 Instance
us-gaap:IncreaseDecreaseInOtherOperatingAssets -1.0 -3 [4] -7427000 -7,427,000 Instance
us-gaap:IncreaseDecreaseInAccruedLiabilities 1.0 -3 [6] 101412000 101,412,000 Instance
us-gaap:IncreaseDecreaseInOtherOperatingLiabilities 1.0 -3 [4] 3741000 3,741,000 Instance
us-gaap:ExcessTaxBenefitFromShareBasedCompensationOperatingActivities 1.0 -3 [5] -18448000 -18,448,000 Instance
us-gaap:NetCashProvidedByUsedInInvestingActivities 1.0 -3 [6] 199354000 2,707,080,000 Instance Inconsistency found, calculated value is 2,707,080,000
biib:ProceedsFromSaleOfStrategicEquityInvestment 1.0 -3 [2] 15000 15,000 Instance
biib:CollateralReceivedUnderSecuritiesLending 1.0 -3 [5] 61253000 61,253,000 Instance
us-gaap:PaymentsToAcquireMarketableSecurities -1.0 -3 [7] -1060159000 -1,060,159,000 Instance
us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities 1.0 -3 [7] 1391949000 1,391,949,000 Instance
us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired -1.0 -3 [5] -25000000 -25,000,000 Instance
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment -1.0 -3 [6] -157093000 -157,093,000 Instance
us-gaap:PaymentsToAcquireOtherInvestments -1.0 -3 [5] -11611000 -11,611,000 Instance
us-gaap:NetCashProvidedByUsedInFinancingActivities 1.0 -3 [7] -1037661000 3,229,327,000 Instance Inconsistency found, calculated value is 3,229,327,000
us-gaap:PaymentsForRepurchaseOfCommonStock -1.0 -3 [6] -559767000 -559,767,000 Instance
us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans 1.0 -3 [5] 89532000 89,532,000 Instance
us-gaap:ProceedsFromRepaymentsOfBankOverdrafts 1.0 -3 [3] 873000 873,000 Instance
us-gaap:ProceedsFromShortTermDebt 1.0 -3 [6] 986980000 986,980,000 Instance
us-gaap:RepaymentsOfShortTermDebt -1.0 -3 [7] -1512474000 -1,512,474,000 Instance
biib:ObligationUnderSecuritiesLending -1.0 -3 [5] -61253000 -61,253,000 Instance
us-gaap:ExcessTaxBenefitFromShareBasedCompensationFinancingActivities 1.0 -3 [5] 18448000 18,448,000 Instance
2 Context January-01-2009_June-30-2009 [ 2009-01-01 - 2009-06-30 ]
c-equal
3 Unit USD
u-equal
us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease -3 [6] 162304000 162,304,000 Instance OK
us-gaap:NetCashProvidedByUsedInOperatingActivities 1.0 -3 [6] 529301000 -86,163,000 Instance Inconsistency found, calculated value is -86,163,000
biib:ProfitLoss -1.0 -3 [6] 391464000 391,464,000 Instance
us-gaap:DepreciationAndAmortization 1.0 -3 [6] 248877000 248,877,000 Instance
us-gaap:ResearchAndDevelopmentInProcess 1.0 -3 [0] 0 0 Instance
us-gaap:ShareBasedCompensation 1.0 -3 [5] 78892000 78,892,000 Instance
us-gaap:OtherNoncashExpense 1.0 -3 [4] -7592000 -7,592,000 Instance
us-gaap:DeferredIncomeTaxExpenseBenefit 1.0 -3 [5] -42772000 -42,772,000 Instance
us-gaap:GainLossOnInvestments 1.0 -3 [5] -15434000 -15,434,000 Instance
us-gaap:WriteOffOfInventory 1.0 -3 [5] 11475000 11,475,000 Instance
us-gaap:ImpairmentOfInvestments 1.0 -3 [5] 10002000 10,002,000 Instance
us-gaap:IncreaseDecreaseInAccountsReceivable -1.0 -3 [5] -63842000 -63,842,000 Instance
biib:IncreaseDecreaseInDueFromUnconsolidatedJointBusiness 1.0 -3 [4] 8719000 8,719,000 Instance
us-gaap:IncreaseDecreaseInInventories -1.0 -3 [5] -14353000 -14,353,000 Instance
us-gaap:IncreaseDecreaseInOtherOperatingAssets -1.0 -3 [4] -5537000 -5,537,000 Instance
us-gaap:IncreaseDecreaseInAccruedLiabilities 1.0 -3 [5] 22950000 22,950,000 Instance
us-gaap:IncreaseDecreaseInOtherOperatingLiabilities 1.0 -3 [5] -90748000 -90,748,000 Instance
us-gaap:ExcessTaxBenefitFromShareBasedCompensationOperatingActivities 1.0 -3 [4] -2800000 -2,800,000 Instance
us-gaap:NetCashProvidedByUsedInInvestingActivities 1.0 -3 [6] -303220000 3,649,460,000 Instance Inconsistency found, calculated value is 3,649,460,000
biib:ProceedsFromSaleOfStrategicEquityInvestment 1.0 -3 [4] 5565000 5,565,000 Instance
biib:CollateralReceivedUnderSecuritiesLending 1.0 -3 [5] 29991000 29,991,000 Instance
us-gaap:PaymentsToAcquireMarketableSecurities -1.0 -3 [7] -1869415000 -1,869,415,000 Instance
us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities 1.0 -3 [7] 1637562000 1,637,562,000 Instance
us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired -1.0 -3 [0] 0 0 Instance
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment -1.0 -3 [5] -71721000 -71,721,000 Instance
us-gaap:PaymentsToAcquireOtherInvestments -1.0 -3 [5] -35202000 -35,202,000 Instance
us-gaap:NetCashProvidedByUsedInFinancingActivities 1.0 -3 [5] -63777000 133,200,000 Instance Inconsistency found, calculated value is 133,200,000
us-gaap:PaymentsForRepurchaseOfCommonStock -1.0 -3 [5] -57631000 -57,631,000 Instance
us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans 1.0 -3 [5] 24387000 24,387,000 Instance
us-gaap:ProceedsFromRepaymentsOfBankOverdrafts 1.0 -3 [4] 7525000 7,525,000 Instance
us-gaap:ProceedsFromShortTermDebt 1.0 -3 [0] 0 0 Instance
us-gaap:RepaymentsOfShortTermDebt -1.0 -3 [5] -10867000 -10,867,000 Instance
biib:ObligationUnderSecuritiesLending -1.0 -3 [5] -29991000 -29,991,000 Instance
us-gaap:ExcessTaxBenefitFromShareBasedCompensationFinancingActivities 1.0 -3 [4] 2800000 2,800,000 Instance


1 Extended Link [ http://biogenidec.com/20090630/BalanceSheets ]
2 Context BalanceAsOf_30Jun2009 [ 2009-06-30 - ]
c-equal
3 Unit USD
u-equal
us-gaap:LiabilitiesAndStockholdersEquity -3 [7] 8777196000 8,777,196,000 Instance OK
us-gaap:Liabilities 1.0 -3 [7] 2531491000 2,531,491,000 Instance OK
us-gaap:LiabilitiesCurrent 1.0 -3 [6] 803926000 803,926,000 Instance OK
biib:CollateralPayableOnLoanedSecurities 1.0 -3 [0] 0 0 Instance
us-gaap:AccountsPayable 1.0 -3 [6] 210941000 210,941,000 Instance
us-gaap:TaxesPayable 1.0 -3 [5] 81594000 81,594,000 Instance
us-gaap:OtherLiabilitiesCurrent 1.0 -3 [6] 496694000 496,694,000 Instance
us-gaap:NotesPayableCurrent 1.0 -3 [5] 14697000 14,697,000 Instance
us-gaap:LongTermNotesPayable 1.0 -3 [7] 1085607000 1,085,607,000 Instance
us-gaap:DeferredTaxLiabilitiesNoncurrent 1.0 -3 [6] 310962000 310,962,000 Instance
us-gaap:OtherLiabilitiesNoncurrent 1.0 -3 [6] 330996000 330,996,000 Instance
us-gaap:StockholdersEquity 1.0 -3 [7] 6245705000 6,245,705,000 Instance OK
biib:NoncontrollingInterest 1.0 -3 [5] 33167000 33,167,000 Instance
biib:TotalShareholdersEquityBeforeNoncontrollingInterest 1.0 -3 [7] 6212538000 7,129,482,000 Instance Inconsistency found, calculated value is 7,129,482,000
us-gaap:AdditionalPaidInCapital 1.0 -3 [7] 6142936000 6,142,936,000 Instance
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax 1.0 -3 [5] 11293000 11,293,000 Instance
us-gaap:RetainedEarningsAccumulatedDeficit 1.0 -3 [6] 516632000 516,632,000 Instance
us-gaap:TreasuryStockValue -1.0 -3 [6] -458472000 -458,472,000 Instance
us-gaap:CommonStockValue 1.0 -3 [3] 149000 149,000 Instance
us-gaap:PreferredStockValue 1.0 -3 [0] 0 0 Instance
us-gaap:Assets -3 [7] 8777196000 8,777,196,000 Instance OK
us-gaap:AssetsCurrent 1.0 -3 [7] 2744278000 2,744,278,000 Instance OK
us-gaap:CashAndCashEquivalentsAtCarryingValue 1.0 -3 [6] 786804000 786,804,000 Instance
us-gaap:MarketableSecuritiesCurrent 1.0 -3 [6] 836270000 836,270,000 Instance
biib:CollateralReceivedForLoanedSecurities 1.0 -3 [0] 0 0 Instance
us-gaap:AccountsReceivableNetCurrent 1.0 -3 [6] 511286000 511,286,000 Instance
biib:DueFromUnconsolidatedJointBusiness 1.0 -3 [6] 198206000 198,206,000 Instance
biib:LoanedSecurities 1.0 -3 [0] 0 0 Instance
us-gaap:InventoryNet 1.0 -3 [6] 268529000 268,529,000 Instance
us-gaap:OtherAssetsCurrent 1.0 -3 [6] 143183000 143,183,000 Instance
us-gaap:MarketableSecuritiesNoncurrent 1.0 -3 [7] 1047611000 1,047,611,000 Instance
us-gaap:PropertyPlantAndEquipmentNet 1.0 -3 [7] 1608660000 1,608,660,000 Instance
us-gaap:IntangibleAssetsNetExcludingGoodwill 1.0 -3 [7] 1978519000 1,978,519,000 Instance
us-gaap:Goodwill 1.0 -3 [7] 1138621000 1,138,621,000 Instance
us-gaap:OtherAssetsNoncurrent 1.0 -3 [6] 259507000 259,507,000 Instance
2 Context BalanceAsOf_31Dec2008 [ 2008-12-31 - ]
c-equal
3 Unit USD
u-equal
us-gaap:LiabilitiesAndStockholdersEquity -3 [7] 8478991000 8,478,991,000 Instance OK
us-gaap:Liabilities 1.0 -3 [7] 2645039000 2,645,039,000 Instance OK
us-gaap:LiabilitiesCurrent 1.0 -3 [6] 923222000 923,222,000 Instance OK
biib:CollateralPayableOnLoanedSecurities 1.0 -3 [5] 29991000 29,991,000 Instance
us-gaap:AccountsPayable 1.0 -3 [6] 107417000 107,417,000 Instance
us-gaap:TaxesPayable 1.0 -3 [6] 223260000 223,260,000 Instance
us-gaap:OtherLiabilitiesCurrent 1.0 -3 [6] 534887000 534,887,000 Instance
us-gaap:NotesPayableCurrent 1.0 -3 [5] 27667000 27,667,000 Instance
us-gaap:LongTermNotesPayable 1.0 -3 [7] 1085431000 1,085,431,000 Instance
us-gaap:DeferredTaxLiabilitiesNoncurrent 1.0 -3 [6] 356017000 356,017,000 Instance
us-gaap:OtherLiabilitiesNoncurrent 1.0 -3 [6] 280369000 280,369,000 Instance
us-gaap:StockholdersEquity 1.0 -3 [7] 5833952000 5,833,952,000 Instance OK
biib:NoncontrollingInterest 1.0 -3 [5] 27869000 27,869,000 Instance
biib:TotalShareholdersEquityBeforeNoncontrollingInterest 1.0 -3 [7] 5806083000 6,860,277,000 Instance Inconsistency found, calculated value is 6,860,277,000
us-gaap:AdditionalPaidInCapital 1.0 -3 [7] 6073957000 6,073,957,000 Instance
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax 1.0 -3 [5] -11106000 -11,106,000 Instance
us-gaap:RetainedEarningsAccumulatedDeficit 1.0 -3 [6] 270180000 270,180,000 Instance
us-gaap:TreasuryStockValue -1.0 -3 [6] -527097000 -527,097,000 Instance
us-gaap:CommonStockValue 1.0 -3 [3] 149000 149,000 Instance
us-gaap:PreferredStockValue 1.0 -3 [0] 0 0 Instance
us-gaap:Assets -3 [7] 8478991000 8,478,991,000 Instance OK
us-gaap:AssetsCurrent 1.0 -3 [7] 2458000000 2,458,000,000 Instance OK
us-gaap:CashAndCashEquivalentsAtCarryingValue 1.0 -3 [6] 622385000 622,385,000 Instance
us-gaap:MarketableSecuritiesCurrent 1.0 -3 [6] 719586000 719,586,000 Instance
biib:CollateralReceivedForLoanedSecurities 1.0 -3 [5] 29991000 29,991,000 Instance
us-gaap:AccountsReceivableNetCurrent 1.0 -3 [6] 446665000 446,665,000 Instance
biib:DueFromUnconsolidatedJointBusiness 1.0 -3 [6] 206925000 206,925,000 Instance
biib:LoanedSecurities 1.0 -3 [5] 29446000 29,446,000 Instance
us-gaap:InventoryNet 1.0 -3 [6] 263602000 263,602,000 Instance
us-gaap:OtherAssetsCurrent 1.0 -3 [6] 139400000 139,400,000 Instance
us-gaap:MarketableSecuritiesNoncurrent 1.0 -3 [6] 891406000 891,406,000 Instance
us-gaap:PropertyPlantAndEquipmentNet 1.0 -3 [7] 1594754000 1,594,754,000 Instance
us-gaap:IntangibleAssetsNetExcludingGoodwill 1.0 -3 [7] 2161058000 2,161,058,000 Instance
us-gaap:Goodwill 1.0 -3 [7] 1138621000 1,138,621,000 Instance
us-gaap:OtherAssetsNoncurrent 1.0 -3 [6] 235152000 235,152,000 Instance


1 Extended Link [ http://biogenidec.com/20090630/StatementsOfIncome ]
2 Context ThreeMonthsEnded_30Jun2009 [ 2009-04-01 - 2009-06-30 ]
c-equal
3 Unit USD
u-equal
us-gaap:NetIncomeLoss -3 [6] 142845000 142,845,000 Instance OK
biib:ProfitLoss 1.0 -3 [6] 144885000 144,885,000 Instance OK
us-gaap:IncomeTaxExpenseBenefit -1.0 -3 [5] 92709000 92,709,000 Instance
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 1.0 -3 [6] 237594000 237,594,000 Instance OK
us-gaap:OtherNonoperatingIncomeExpense 1.0 -3 [5] 14680000 14,680,000 Instance
us-gaap:OperatingIncomeLoss 1.0 -3 [6] 222914000 222,914,000 Instance OK
us-gaap:CostsAndExpenses -1.0 -3 [6] 870375000 870,375,000 Instance OK
us-gaap:ResearchAndDevelopmentInProcess 1.0 -3 [0] 0 0 Instance
us-gaap:AmortizationOfIntangibleAssets 1.0 -3 [5] 93234000 93,234,000 Instance
biib:CollaborationProfitSharing 1.0 -3 [5] 49138000 49,138,000 Instance
us-gaap:SellingGeneralAndAdministrativeExpense 1.0 -3 [6] 220829000 220,829,000 Instance
us-gaap:ResearchAndDevelopmentExpense 1.0 -3 [6] 416453000 416,453,000 Instance
us-gaap:CostOfRevenue 1.0 -3 [5] 90721000 90,721,000 Instance
us-gaap:Revenues 1.0 -3 [7] 1093289000 1,093,289,000 Instance OK
us-gaap:OtherSalesRevenueNet 1.0 -3 [5] 26749000 26,749,000 Instance
biib:UnconsolidatedJointBusiness 1.0 -3 [6] 275570000 275,570,000 Instance
us-gaap:SalesRevenueGoodsNet 1.0 -3 [6] 790970000 790,970,000 Instance
biib:NetIncomeLossAttributableToNoncontrollingInterest -1.0 -3 [4] 2040000 2,040,000 Instance
2 Context ThreeMonthsEnded_30Jun2008 [ 2008-04-01 - 2008-06-30 ]
c-equal
3 Unit USD
u-equal
us-gaap:NetIncomeLoss -3 [6] 206628000 206,628,000 Instance OK
biib:ProfitLoss 1.0 -3 [6] 208073000 208,073,000 Instance OK
us-gaap:IncomeTaxExpenseBenefit -1.0 -3 [5] 84706000 84,706,000 Instance
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 1.0 -3 [6] 292779000 292,779,000 Instance OK
us-gaap:OtherNonoperatingIncomeExpense 1.0 -3 [4] -4018000 -4,018,000 Instance
us-gaap:OperatingIncomeLoss 1.0 -3 [6] 296797000 296,797,000 Instance OK
us-gaap:CostsAndExpenses -1.0 -3 [6] 696647000 696,647,000 Instance OK
us-gaap:ResearchAndDevelopmentInProcess 1.0 -3 [0] 0 0 Instance
us-gaap:AmortizationOfIntangibleAssets 1.0 -3 [5] 72869000 72,869,000 Instance
biib:CollaborationProfitSharing 1.0 -3 [5] 33429000 33,429,000 Instance
us-gaap:SellingGeneralAndAdministrativeExpense 1.0 -3 [6] 245689000 245,689,000 Instance
us-gaap:ResearchAndDevelopmentExpense 1.0 -3 [6] 252259000 252,259,000 Instance
us-gaap:CostOfRevenue 1.0 -3 [5] 92401000 92,401,000 Instance
us-gaap:Revenues 1.0 -3 [6] 993444000 993,444,000 Instance OK
us-gaap:OtherSalesRevenueNet 1.0 -3 [5] 30136000 30,136,000 Instance
biib:UnconsolidatedJointBusiness 1.0 -3 [6] 278822000 278,822,000 Instance
us-gaap:SalesRevenueGoodsNet 1.0 -3 [6] 684486000 684,486,000 Instance
biib:NetIncomeLossAttributableToNoncontrollingInterest -1.0 -3 [4] 1445000 1,445,000 Instance
2 Context SixMonthsEnded_30Jun2008 [ 2008-01-01 - 2008-06-30 ]
c-equal
3 Unit USD
u-equal
us-gaap:NetIncomeLoss -3 [6] 369725000 369,725,000 Instance OK
biib:ProfitLoss 1.0 -3 [6] 373880000 373,880,000 Instance OK
us-gaap:IncomeTaxExpenseBenefit -1.0 -3 [6] 167983000 167,983,000 Instance
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 1.0 -3 [6] 541863000 541,863,000 Instance OK
us-gaap:OtherNonoperatingIncomeExpense 1.0 -3 [3] -938000 -938,000 Instance
us-gaap:OperatingIncomeLoss 1.0 -3 [6] 542801000 542,801,000 Instance OK
us-gaap:CostsAndExpenses -1.0 -3 [7] 1392829000 1,392,829,000 Instance OK
us-gaap:ResearchAndDevelopmentInProcess 1.0 -3 [5] 25000000 25,000,000 Instance
us-gaap:AmortizationOfIntangibleAssets 1.0 -3 [6] 147650000 147,650,000 Instance
biib:CollaborationProfitSharing 1.0 -3 [5] 54835000 54,835,000 Instance
us-gaap:SellingGeneralAndAdministrativeExpense 1.0 -3 [6] 461518000 461,518,000 Instance
us-gaap:ResearchAndDevelopmentExpense 1.0 -3 [6] 510491000 510,491,000 Instance
us-gaap:CostOfRevenue 1.0 -3 [6] 193335000 193,335,000 Instance
us-gaap:Revenues 1.0 -3 [7] 1935630000 1,935,630,000 Instance OK
us-gaap:OtherSalesRevenueNet 1.0 -3 [5] 60029000 60,029,000 Instance
biib:UnconsolidatedJointBusiness 1.0 -3 [6] 526045000 526,045,000 Instance
us-gaap:SalesRevenueGoodsNet 1.0 -3 [7] 1349556000 1,349,556,000 Instance
biib:NetIncomeLossAttributableToNoncontrollingInterest -1.0 -3 [4] 4155000 4,155,000 Instance
2 Context January-01-2009_June-30-2009 [ 2009-01-01 - 2009-06-30 ]
c-equal
3 Unit USD
u-equal
us-gaap:NetIncomeLoss -3 [6] 386832000 386,832,000 Instance OK
biib:ProfitLoss 1.0 -3 [6] 391464000 391,464,000 Instance OK
us-gaap:IncomeTaxExpenseBenefit -1.0 -3 [6] 157934000 157,934,000 Instance
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 1.0 -3 [6] 549398000 549,398,000 Instance OK
us-gaap:OtherNonoperatingIncomeExpense 1.0 -3 [5] 21526000 21,526,000 Instance
us-gaap:OperatingIncomeLoss 1.0 -3 [6] 527872000 527,872,000 Instance OK
us-gaap:CostsAndExpenses -1.0 -3 [7] 1601902000 1,601,902,000 Instance OK
us-gaap:ResearchAndDevelopmentInProcess 1.0 -3 [0] 0 0 Instance
us-gaap:AmortizationOfIntangibleAssets 1.0 -3 [6] 182482000 182,482,000 Instance
biib:CollaborationProfitSharing 1.0 -3 [5] 91911000 91,911,000 Instance
us-gaap:SellingGeneralAndAdministrativeExpense 1.0 -3 [6] 442660000 442,660,000 Instance
us-gaap:ResearchAndDevelopmentExpense 1.0 -3 [6] 695931000 695,931,000 Instance
us-gaap:CostOfRevenue 1.0 -3 [6] 188918000 188,918,000 Instance
us-gaap:Revenues 1.0 -3 [7] 2129774000 2,129,774,000 Instance OK
us-gaap:OtherSalesRevenueNet 1.0 -3 [5] 51008000 51,008,000 Instance
biib:UnconsolidatedJointBusiness 1.0 -3 [6] 554388000 554,388,000 Instance
us-gaap:SalesRevenueGoodsNet 1.0 -3 [7] 1524378000 1,524,378,000 Instance
biib:NetIncomeLossAttributableToNoncontrollingInterest -1.0 -3 [4] 4632000 4,632,000 Instance


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