$BIIB
BIOGEN INC. Stock $biib

$biib Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-Q Financial Statement

#000087504512000010 Filed on October 25, 2012

Income Statement

Concept	2012 Q4	2012 Q3	2011 Q3
Revenue	$1.418B	$1.386B	$1.310B
YoY Change	6.87%	5.77%	11.41%
Cost Of Revenue	$133.8M	$139.4M	$123.5M
YoY Change	-4.15%	12.82%	28.81%
Gross Profit	$1.284B	$1.246B	$1.186B
YoY Change	8.17%	5.04%	9.86%
Gross Profit Margin	90.56%	89.95%	90.57%
Selling, General & Admin	$376.0M	$299.6M	$261.4M
YoY Change	32.44%	14.63%	7.04%
% of Gross Profit	29.28%	24.04%	22.03%
Research & Development	$345.2M	$304.2M	$301.4M
YoY Change	1.86%	0.94%	-5.55%
% of Gross Profit	26.88%	24.41%	25.4%
Depreciation & Amortization	$96.80M	$94.20M	$87.40M
YoY Change	9.13%	7.78%	-3.0%
% of Gross Profit	7.54%	7.56%	7.37%
Operating Expenses	$775.8M	$603.8M	$562.8M
YoY Change	10.21%	7.3%	-8.76%
Operating Profit	$508.3M	$535.3M	$488.5M
YoY Change	5.19%	9.57%	5.48%
Interest Expense	-$92.10M	$8.700M	$7.900M
YoY Change	25.14%	10.13%	-111.47%
% of Operating Profit	-18.12%	1.63%	1.62%
Other Income/Expense, Net	$600.0K	-$4.548M	-$7.727M
YoY Change	500.0%	-41.14%	-1065.88%
Pretax Income	$431.2M	$530.7M	$480.8M
YoY Change	6.44%	10.39%	156.82%
Income Tax	$136.3M	$131.0M	$127.1M
% Of Pretax Income	31.61%	24.69%	26.44%
Net Earnings	$292.1M	$398.4M	$351.8M
YoY Change	-2.7%	13.25%	38.45%
Net Earnings / Revenue	20.6%	28.75%	26.86%
Basic Earnings Per Share	$1.24	$1.68	$1.45
Diluted Earnings Per Share	$1.23	$1.67	$1.43
COMMON SHARES
Basic Shares Outstanding	236.6M shares	236.5M shares	242.9M shares
Diluted Shares Outstanding		238.1M shares	245.4M shares

Balance Sheet

Concept	2012 Q4	2012 Q3	2011 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.706B	$1.606B	$1.520B
YoY Change	0.89%	5.66%	84.24%
Cash & Equivalents	$570.7M	$451.7M	$575.1M
Short-Term Investments	$1.135B	$1.154B	$944.0M
Other Short-Term Assets	$136.0M	$126.2M	$173.0M
YoY Change	-5.94%	-27.07%	-13.07%
Inventory	$447.4M	$392.9M	$311.0M
Prepaid Expenses
Receivables	$686.8M	$661.5M	$813.0M
Other Receivables	$0.00	$0.00	$20.00M
Total Short-Term Assets	$3.244B	$3.055B	$2.837B
YoY Change	9.04%	7.7%	33.13%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.742B	$1.677B	$1.572B
YoY Change	10.87%	6.65%	-4.26%
Goodwill	$1.201B	$1.205B
YoY Change	4.8%
Intangibles	$1.632B	$1.681B
YoY Change	1.45%
Long-Term Investments	$2.311B	$29.50M	$1.587B
YoY Change	32.21%	-98.14%	106.91%
Other Assets	$274.1M	$271.1M
YoY Change	-17.34%
Total Long-Term Assets	$6.886B	$6.575B	$5.965B
YoY Change	13.36%	10.23%	13.34%
TOTAL ASSETS
Total Short-Term Assets	$3.244B	$3.055B	$2.837B
Total Long-Term Assets	$6.886B	$6.575B	$5.965B
Total Assets	$10.13B	$9.631B	$8.802B
YoY Change	11.94%	9.41%	19.04%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$204.0M	$157.4M	$159.0M
YoY Change	9.41%	-0.99%	10.42%
Accrued Expenses	$485.0M	$404.0M	$331.0M
YoY Change	43.07%	22.05%	-40.25%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$453.0M	$453.0M	$3.000M
YoY Change	15000.0%	15000.0%	-72.73%
Total Short-Term Liabilities	$1.657B	$1.521B	$885.0M
YoY Change	81.55%	71.87%	7.4%
LONG-TERM LIABILITIES
Long-Term Debt	$687.0M	$658.0M	$1.061B
YoY Change	-35.25%	-37.98%	-0.75%
Other Long-Term Liabilities	$604.3M	$539.6M	$384.0M
YoY Change	50.96%	40.51%	50.0%
Total Long-Term Liabilities	$604.3M	$539.6M	$1.445B
YoY Change	50.96%	-62.66%	9.06%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.657B	$1.521B	$885.0M
Total Long-Term Liabilities	$604.3M	$539.6M	$1.445B
Total Liabilities	$3.166B	$2.969B	$2.573B
YoY Change	20.73%	15.38%	8.89%
SHAREHOLDERS EQUITY
Retained Earnings	$4.487B	$4.195B
YoY Change	44.42%
Common Stock	$127.0K	$127.0K
YoY Change	-0.78%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.325B	$1.303B
YoY Change	57.71%
Treasury Stock Shares	17.66B shares
Shareholders Equity	$6.962B	$6.660B	$6.229B
YoY Change
Total Liabilities & Shareholders Equity	$10.13B	$9.631B	$8.802B
YoY Change	11.94%	9.41%	19.04%

Cashflow Statement

Concept	2012 Q4	2012 Q3	2011 Q3
OPERATING ACTIVITIES
Net Income	$292.1M	$398.4M	$351.8M
YoY Change	-2.7%	13.25%	38.45%
Depreciation, Depletion And Amortization	$96.80M	$94.20M	$87.40M
YoY Change	9.13%	7.78%	-3.0%
Cash From Operating Activities	$507.9M	$541.8M	$570.6M
YoY Change	7.17%	-5.05%	33.26%
INVESTING ACTIVITIES
Capital Expenditures	-$75.70M	-$58.10M	-$81.00M
YoY Change	7.38%	-28.27%	108.23%
Acquisitions
YoY Change
Other Investing Activities	-$299.8M	-$464.3M	-$506.1M
YoY Change	-6.05%	-8.26%	1543.18%
Cash From Investing Activities	-$375.4M	-$522.4M	-$587.2M
YoY Change	-3.62%	-11.04%	741.26%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-15.50M	-28.30M	-99.20M
YoY Change	-89.15%	-71.47%	-78.49%
NET CHANGE
Cash From Operating Activities	507.9M	541.8M	570.6M
Cash From Investing Activities	-375.4M	-522.4M	-587.2M
Cash From Financing Activities	-15.50M	-28.30M	-99.20M
Net Change In Cash	117.0M	-8.900M	-115.8M
YoY Change	-300.34%	-92.31%	12.65%
FREE CASH FLOW
Cash From Operating Activities	$507.9M	$541.8M	$570.6M
Capital Expenditures	-$75.70M	-$58.10M	-$81.00M
Free Cash Flow	$583.6M	$599.9M	$651.6M
YoY Change	7.2%	-7.93%	39.5%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.56
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.85
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.81
	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	500000	USD
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	186448000	USD
CY2012Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	157424000	USD
CY2012Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	661519000	USD
CY2011Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	584603000	USD
CY2012Q3	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	45300000	USD
CY2011Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	47400000	USD
CY2012Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	-898300000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	-782100000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-26535000	USD
CY2012Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-51115000	USD
CY2011Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	4185048000	USD
CY2012Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3819063000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation And Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions	134000000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	151256000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	157699000	USD
CY2012Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	53013000	USD
CY2011Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	49347000	USD
CY2012Q3	us-gaap	Assets Assets	9630621000	USD
CY2011Q4	us-gaap	Assets Assets	9049604000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	2975427000	USD
CY2012Q3	us-gaap	Assets Current AssetsCurrent	3055388000	USD
CY2012Q3	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	2890400000	USD
CY2011Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	2592800000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	1525500000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	1251400000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	1251600000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	1529800000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	2592800000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	2890400000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1175600000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1153400000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	1176100000	USD
CY2012Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	1154000000	USD
CY2012Q3	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	2895600000	USD
CY2011Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	2592900000	USD
CY2012Q3	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	400000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	3400000	USD
CY2011Q3	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	300000	USD
	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	1700000	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	1700000	USD
CY2011Q3	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	400000	USD
CY2012Q3	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	800000	USD
	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	2700000	USD
CY2012Q3	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	1400000	USD
CY2011Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	3100000	USD
CY2012Q3	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	6600000	USD
CY2011Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	3200000	USD
CY2012Q3	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	839700000	USD
CY2011Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	597900000	USD
CY2011Q3	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	125900000	USD
CY2011Q2	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	84600000	USD
CY2011Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	151000000	USD
CY2012Q2	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	280900000	USD
CY2012Q3	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	290300000	USD
CY2010Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	81200000	USD
CY2012Q3	us-gaap	Business Acquisition Purchase Price Allocation Amortizable Intangible Assets BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets	219200000	USD
CY2012Q3	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	51600000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability	5900000	USD
CY2011Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability	2500000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability	23600000	USD
CY2012Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability	9400000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	514542000	USD
CY2012Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	451723000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	759598000	USD
CY2011Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	575140000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-184048000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-64852000	USD
CY2012Q3	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	309000000	USD
CY2011Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	399800000	USD
CY2012Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0005
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0005
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	128000	USD
CY2012Q3	us-gaap	Common Stock Value CommonStockValue	127000	USD
CY2012Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	397840000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1063390000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1000538000	USD
CY2011Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	334714000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	65000	USD
CY2012Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2011Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1030000	USD
CY2012Q3	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	800000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	37167000	USD
CY2012Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	397840000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	963371000	USD
CY2011Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	333684000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1063325000	USD
CY2012Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	242100000	USD
CY2011Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	553600000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	327143000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	411666000	USD
CY2012Q3	us-gaap	Cost Of Revenue CostOfRevenue	139358000	USD
CY2011Q3	us-gaap	Cost Of Revenue CostOfRevenue	123527000	USD
CY2012Q3	us-gaap	Costs And Expenses CostsAndExpenses	882023000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	2719897000	USD
CY2011Q3	us-gaap	Costs And Expenses CostsAndExpenses	821441000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	2406336000	USD
CY2012Q3	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	1144900000	USD
CY2011Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	1160400000	USD
	us-gaap	Debt Instrument Maturity Date Description DebtInstrumentMaturityDateDescription	less than 90 days
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-86858000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	115698000	USD
CY2011Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	69600000	USD
CY2012Q3	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	140600000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	248644000	USD
CY2012Q3	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	249577000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	268772000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	270212000	USD
	us-gaap	Derivative Higher Remaining Maturity Range1 DerivativeHigherRemainingMaturityRange1	P15M
CY2011	us-gaap	Derivative Higher Remaining Maturity Range1 DerivativeHigherRemainingMaturityRange1	P12M
CY2012Q3	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	12000000	USD
CY2011Q3	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	10800000	USD
	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	37600000	USD
	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	31000000	USD
	us-gaap	Derivative Lower Remaining Maturity Range1 DerivativeLowerRemainingMaturityRange1	P1M
CY2011	us-gaap	Derivative Lower Remaining Maturity Range1 DerivativeLowerRemainingMaturityRange1	P1M
	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	4000000	USD
CY2011Q3	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	2800000	USD
	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	3200000	USD
	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">New Accounting Pronouncements</font></div><div style="line-height:120%;padding-top:6px;text-align:left;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">From time to time, new accounting pronouncements are issued by the FASB or other standard setting bodies that are adopted by the Company as of the specified effective date. Unless otherwise discussed, we believe that the impact of recently issued standards that are not yet effective will not have a material impact on our financial position or results of operations upon adoption.</font></div><div style="line-height:120%;padding-top:12px;text-align:left;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In July 2012, the FASB issued ASU No. 2012-02, </font><font style="font-family:inherit;font-size:10pt;font-style:italic;">Intangibles – Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment </font><font style="font-family:inherit;font-size:10pt;">(ASU 2012-02). This newly issued accounting standard allows an entity the option to first assess qualitative factors to determine whether it is necessary to perform a quantitative impairment test for indefinite-lived intangibles other than goodwill. Under that option, an entity would no longer be required to calculate the fair value of an indefinite-lived intangible asset unless the entity determines, based on that qualitative assessment, that it is more likely than not that the fair value of the indefinite-lived intangible asset is less than its carrying amount. This ASU is effective for annual and interim indefinite-lived intangible asset impairment tests performed for fiscal years beginning after September 15, 2012. Early adoption is permitted. The adoption of this standard is not expected to have a material impact on our financial or results of operations.</font></div></div>
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.45
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.68
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.43
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.67
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.53
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	2033000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-410000	USD
CY2012Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.247
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.260
CY2011Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.264
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.235
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2012Q3	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2011Q3	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2011Q3	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.038
CY2012Q3	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.071
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.054
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.076
CY2011Q3	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation And Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciationAndAmortization	0.011
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation And Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciationAndAmortization	0.013
CY2012Q3	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation And Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciationAndAmortization	0.013
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation And Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciationAndAmortization	0.012
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.012
CY2011Q3	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.012
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.027
CY2012Q3	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.021
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.000
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.013
CY2011Q3	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.009
CY2012Q3	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.005
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.008
CY2012Q3	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.008
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.014
CY2011Q3	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.013
	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.037
CY2012Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.034
	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.038
CY2011Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.051
CY2011Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	176300000	USD
CY2012Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	198700000	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	-3300000	USD
CY2012Q3	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	-1500000	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	-4000000	USD
CY2011Q3	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	-1300000	USD
CY2011Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	10000000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	33000000	USD
CY2012Q3	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	43100000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	40100000	USD
CY2012Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	13000000	USD
CY2012Q3	us-gaap	Equity Method Investments EquityMethodInvestments	32600000000	KRW
CY2012Q3	us-gaap	Equity Method Investments EquityMethodInvestments	29500000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	1300000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	400000	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	900000	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	23100000	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	25200000	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	20800000	USD
CY2011Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	20600000	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	23500000	USD
CY2012Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	25400000	USD
	us-gaap	Fair Value Measurements Changes In Valuation Techniques FairValueMeasurementsChangesInValuationTechniques	0
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2199300000	USD
CY2012Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2350700000	USD
CY2012Q3	us-gaap	Foreign Currency Derivative Instruments Not Designated As Hedging Instruments At Fair Value Net ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAtFairValueNet	4300000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	200000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-5800000	USD
CY2011Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-4800000	USD
CY2012Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	100000	USD
CY2011Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	37600000	USD
CY2011Q3	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	6100000	USD
	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	5600000	USD
	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	1800000	USD
CY2012Q3	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	5700000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	15600000	USD
CY2011Q3	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-100000	USD
CY2012Q3	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	1300000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	15400000	USD
CY2012Q3	us-gaap	Goodwill Goodwill	1204740000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	1146314000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	1146300000	USD
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	51600000	USD
CY2011	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2012Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	USD
CY2011Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	800000	USD
CY2012Q3	us-gaap	Impairment Of Investments ImpairmentOfInvestments	3500000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	7600000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	4800000	USD
	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	480766000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1423888000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	530702000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1306084000	USD
CY2012Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1258000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1769000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2011Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2012Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	131044000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	334213000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	339608000	USD
CY2011Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	127104000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-18486000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	17334000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	104075000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	35767000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-56737000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	82423000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	59913000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	32389000	USD
CY2012Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1681232000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1608191000	USD
CY2012Q3	us-gaap	Interest Expense InterestExpense	8700000	USD
	us-gaap	Interest Expense InterestExpense	25500000	USD
	us-gaap	Interest Expense InterestExpense	23100000	USD
CY2011Q3	us-gaap	Interest Expense InterestExpense	7900000	USD
CY2012Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	107400000	USD
CY2011Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	73600000	USD
CY2011Q4	us-gaap	Inventory Net InventoryNet	326843000	USD
CY2012Q3	us-gaap	Inventory Net InventoryNet	392936000	USD
CY2011Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	83800000	USD
CY2012Q3	us-gaap	Inventory Raw Materials InventoryRawMaterials	101900000	USD
CY2012Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	183600000	USD
CY2011Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	169400000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	22600000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	13300000	USD
CY2011Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	5300000	USD
CY2012Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	5900000	USD
CY2012Q3	us-gaap	Land Land	54000000	USD
CY2011Q4	us-gaap	Land Land	51900000	USD
CY2011Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	102700000	USD
CY2012Q3	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	105800000	USD
CY2012Q3	us-gaap	Liabilities Liabilities	2968681000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	2622617000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9049604000	USD
CY2012Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9630621000	USD
CY2012Q3	us-gaap	Liabilities Current LiabilitiesCurrent	1521093000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	912889000	USD
CY2012Q3	us-gaap	Line Of Credit Facility Amount Outstanding LineOfCreditFacilityAmountOutstanding	0	USD
CY2012Q3	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	360000000	USD
CY2012Q3	us-gaap	Long Term Notes Payable LongTermNotesPayable	658442000	USD
CY2011Q4	us-gaap	Long Term Notes Payable LongTermNotesPayable	1060808000	USD
	us-gaap	Loss Contingency Damages Sought Value LossContingencyDamagesSoughtValue	125000000	USD
CY2011Q4	us-gaap	Loss Contingency Estimate Of Possible Loss LossContingencyEstimateOfPossibleLoss	30700000	EUR
CY2011Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	570100000	USD
CY2012Q3	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	824300000	USD
CY2011Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	1176115000	USD
CY2012Q3	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	1154071000	USD
CY2011Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	1416737000	USD
CY2012Q3	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	1741534000	USD
	us-gaap	Maximum Remaining Maturity Of Foreign Currency Derivatives1 MaximumRemainingMaturityOfForeignCurrencyDerivatives1	P15M
CY2011Q4	us-gaap	Minority Interest MinorityInterest	1488000	USD
CY2012Q3	us-gaap	Minority Interest MinorityInterest	2388000	USD
CY2011Q3	us-gaap	Minority Interest MinorityInterest	4400000	USD
CY2010Q4	us-gaap	Minority Interest MinorityInterest	52900000	USD
CY2012Q2	us-gaap	Minority Interest MinorityInterest	2400000	USD
CY2011Q2	us-gaap	Minority Interest MinorityInterest	79100000	USD
CY2012Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	24000000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	-1300000	USD
CY2011Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	14100000	USD
	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-61700000	USD
CY2012Q3	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	0	USD
	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	0	USD
CY2011Q3	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-61700000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-177053000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-861954000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1260762000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-574888000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1253767000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1371990000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	398400000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	351826000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1087906000	USD
	us-gaap	Net Income Loss NetIncomeLoss	934190000	USD
CY2011Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1836000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	32286000	USD
CY2012Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1087900000	USD
CY2011Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	351800000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	933600000	USD
CY2012Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	398400000	USD
CY2012Q3	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	0	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	1315588000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	488493000	USD
CY2012Q3	us-gaap	Other Assets Current OtherAssetsCurrent	126174000	USD
CY2011Q4	us-gaap	Other Assets Current OtherAssetsCurrent	144600000	USD
CY2012Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	271144000	USD
CY2011Q3	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	0	USD
	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	0	USD
CY2011Q4	us-gaap	Notes Payable NotesPayable	1061900000	USD
CY2012Q3	us-gaap	Notes Payable NotesPayable	1055100000	USD
CY2012Q3	us-gaap	Notes Payable Current NotesPayableCurrent	453209000	USD
CY2011Q4	us-gaap	Notes Payable Current NotesPayableCurrent	3292000	USD
CY2012Q3	us-gaap	Notional Amount Of Foreign Currency Cash Flow Hedge Derivatives NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives	603100000	USD
CY2011Q4	us-gaap	Notional Amount Of Foreign Currency Cash Flow Hedge Derivatives NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives	532300000	USD
CY2012Q3	us-gaap	Notional Amount Of Foreign Currency Derivative Instruments Not Designated As Hedging Instruments NotionalAmountOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	297300000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	1410342000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	535250000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	331548000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToNoncontrollingInterest	-800000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToNoncontrollingInterest	0	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToNoncontrollingInterest	100000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToNoncontrollingInterest	4900000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	3331000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-12092000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	1503000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-1353000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	7101000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	1958000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	794000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	883000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	32921000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-27457000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-27354000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	21870000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	3140000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	2634000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	3848000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	3118000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-50505000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	24279000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	25093000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-980000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-560000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	34062000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-24516000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-18948000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-5000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-198000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-590000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	11000	USD
	biib	Average Maturity Of Marketable Securities AverageMaturityOfMarketableSecurities	P13M
CY2011Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	677210000	USD
CY2012Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	866208000	USD
CY2012Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	539569000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	400276000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-6043000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	15493000	USD
CY2011Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-7727000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	13546000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-9504000	USD
CY2012Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4548000	USD
CY2012Q3	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	491300000	USD
	us-gaap	Profit Loss ProfitLoss	966476000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	353662000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	398400000	USD
	us-gaap	Profit Loss ProfitLoss	1087906000	USD
CY2012Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2574900000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2353500000	USD
CY2012Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1676583000	USD
	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	150147000	USD
CY2012Q3	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	58652000	USD
	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	143308000	USD
CY2011Q3	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	67706000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	8265000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	38014000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	963171000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	386575000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	72401000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	32100000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	36000000000	KRW
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	2590971000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	2192343000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	185511000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	137578000	USD
CY2011Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	600000	USD
CY2012Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2012Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2012Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	299466000	USD
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	58278000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	42939000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-89944000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	1913381000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	1476052000	USD
CY2011Q3	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	306200000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1571387000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	880668000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	989738000	USD
CY2012Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	304217000	USD
CY2011Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	301391000	USD
CY2011Q3	us-gaap	Restructuring Charges RestructuringCharges	1803000	USD
CY2012Q3	us-gaap	Restructuring Charges RestructuringCharges	803000	USD
	us-gaap	Restructuring Charges RestructuringCharges	2225000	USD
	us-gaap	Restructuring Charges RestructuringCharges	18390000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3106761000	USD
CY2012Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	4194551000	USD
CY2012Q3	us-gaap	Revenues Revenues	1385554000	USD
CY2011Q3	us-gaap	Revenues Revenues	1309934000	USD
	us-gaap	Revenues Revenues	4098520000	USD
	us-gaap	Revenues Revenues	3721924000	USD
CY2012Q3	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	1039110000	USD
	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	3091398000	USD
CY2011Q3	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	975757000	USD
	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	2839562000	USD
CY2012Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	400000	shares
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	839903000	USD
CY2012Q3	us-gaap	Treasury Stock Value TreasuryStockValue	1303074000	USD
CY2012Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	53200000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	963200000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	386600000	USD
CY2011Q1	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	20000000	shares
CY2012Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	44252000	USD
CY2012Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	299631000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	901488000	USD
CY2011Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	261398000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	772217000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	88378000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	86625000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	382000	shares
	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	225000	shares
CY2012Q3	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	6300000	shares
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	6425499000	USD
CY2012Q3	us-gaap	Stockholders Equity StockholdersEquity	6659552000	USD
CY2012Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6661940000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6426987000	USD
	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	235000000	USD
CY2011Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	45939000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	7700000	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	5000000	shares
CY2011	biib	Average Maturity Of Marketable Securities AverageMaturityOfMarketableSecurities	P14M
CY2012Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	37000000	USD
	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:6px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of our condensed consolidated financial statements requires us to make estimates, judgments, and assumptions that may affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an on-going basis, we evaluate our estimates and judgments and methodologies, including those related to revenue recognition and related allowances, our collaborative relationships, clinical trial expenses, the consolidation of variable interest entities, the collectability of our accounts receivable, the valuation of contingent consideration, the valuation of acquired intangible assets including in-process research and development, inventory, impairment and amortization of long-lived assets including intangible assets and acquired in-process research and development (IPR&D), impairments of goodwill, share-based compensation, income taxes including the valuation allowance for deferred tax assets, the valuation of investments, derivatives and hedging activities, contingencies, litigation, and restructuring charges. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results may differ from these estimates under different assumptions or conditions.</font></div></div>
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1800000	shares
CY2012Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1600000	shares
CY2011Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2500000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2800000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	240137000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	245366000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	238125000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	245140000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	242266000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	238331000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	236474000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	242883000	shares
CY2011Q4	biib	Accounts Receivable Outstanding For Greater Than One Year AccountsReceivableOutstandingForGreaterThanOneYear	56000000	USD
CY2012Q3	biib	Accounts Receivable Outstanding For Greater Than One Year AccountsReceivableOutstandingForGreaterThanOneYear	3900000	USD
	biib	Adjustments To Product Revenue Reserves Relating To Sales In Prior Years AdjustmentsToProductRevenueReservesRelatingToSalesInPriorYears	5800000	USD
CY2012Q3	biib	Allocated Share Based Compensation Expense Net AllocatedShareBasedCompensationExpenseNet	45700000	USD
CY2011Q3	biib	Allocated Share Based Compensation Expense Net AllocatedShareBasedCompensationExpenseNet	36600000	USD
	biib	Allocated Share Based Compensation Expense Net AllocatedShareBasedCompensationExpenseNet	111000000	USD
	biib	Allocated Share Based Compensation Expense Net AllocatedShareBasedCompensationExpenseNet	137300000	USD
CY2010Q2	biib	Assessment Of Tax Including Penalties And Interest AssessmentOfTaxIncludingPenaltiesAndInterest	103500000	USD
	biib	Automatic Renewal Period For Resolution AutomaticRenewalPeriodForResolution	P24M
CY2011Q4	biib	Available For Sale Securities Debt Maturities After Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsAmortizedCost	165800000	USD
CY2012Q3	biib	Available For Sale Securities Debt Maturities After Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsAmortizedCost	211500000	USD
CY2011Q4	biib	Available For Sale Securities Debt Maturities After Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsFairValue	165200000	USD
CY2012Q3	biib	Available For Sale Securities Debt Maturities After Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsFairValue	211800000	USD
CY2012Q3	biib	Computer Software And Hardware ComputerSoftwareAndHardware	465900000	USD
CY2012Q3	biib	Current Portion Of Contingent Consideration Obligations CurrentPortionOfContingentConsiderationObligations	21300000	USD
CY2011Q4	biib	Current Portion Of Contingent Consideration Obligations CurrentPortionOfContingentConsiderationObligations	10800000	USD
	biib	Current Provisions To Product Revenue Reserves Relating To Sales In Current Year CurrentProvisionsToProductRevenueReservesRelatingToSalesInCurrentYear	455100000	USD
	biib	Damages Claimed DamagesClaimed	181000000	EUR
	biib	Decrease In Share Of Co Promotion Profits Due To Estimated Compensation Damages DecreaseInShareOfCoPromotionProfitsDueToEstimatedCompensationDamages	50000000	USD
CY2012Q3	biib	Due From Unconsolidated Joint Business DueFromUnconsolidatedJointBusiness	268965000	USD
CY2011Q4	biib	Due From Unconsolidated Joint Business DueFromUnconsolidatedJointBusiness	228724000	USD
	biib	Effective Income Tax Rate Reconciliation Contingent Consideration EffectiveIncomeTaxRateReconciliationContingentConsideration	0.000
CY2011Q3	biib	Effective Income Tax Rate Reconciliation Contingent Consideration EffectiveIncomeTaxRateReconciliationContingentConsideration	0.000
	biib	Effective Income Tax Rate Reconciliation Contingent Consideration EffectiveIncomeTaxRateReconciliationContingentConsideration	0.005
CY2012Q3	biib	Effective Income Tax Rate Reconciliation Contingent Consideration EffectiveIncomeTaxRateReconciliationContingentConsideration	0.007
CY2011Q3	biib	Fair Value Adjustment Of Contingent Consideration FairValueAdjustmentOfContingentConsideration	2500000	USD
	biib	Fair Value Adjustment Of Contingent Consideration FairValueAdjustmentOfContingentConsideration	23573000	USD
	biib	Business Acquisition Contingent Consideration Acquisitions At Fair Value BusinessAcquisitionContingentConsiderationAcquisitionsAtFairValue	122200000	USD
CY2012Q3	biib	Business Acquisition Contingent Consideration Acquisitions At Fair Value BusinessAcquisitionContingentConsiderationAcquisitionsAtFairValue	0	USD
	biib	Business Acquisition Contingent Consideration Acquisitions At Fair Value BusinessAcquisitionContingentConsiderationAcquisitionsAtFairValue	38800000	USD
CY2011Q3	biib	Business Acquisition Contingent Consideration Acquisitions At Fair Value BusinessAcquisitionContingentConsiderationAcquisitionsAtFairValue	38800000	USD
CY2011Q4	biib	Clinical Development Expenses ClinicalDevelopmentExpenses	40800000	USD
CY2012Q3	biib	Clinical Development Expenses ClinicalDevelopmentExpenses	52900000	USD
CY2011Q4	biib	Collaboration Expenses CollaborationExpenses	44200000	USD
CY2012Q3	biib	Collaboration Expenses CollaborationExpenses	46600000	USD
CY2012Q3	biib	Collaboration Profit Sharing CollaborationProfitSharing	75545000	USD
CY2011Q3	biib	Collaboration Profit Sharing CollaborationProfitSharing	81475000	USD
	biib	Collaboration Profit Sharing CollaborationProfitSharing	244319000	USD
	biib	Collaboration Profit Sharing CollaborationProfitSharing	239951000	USD
CY2011Q4	biib	Computer Software And Hardware ComputerSoftwareAndHardware	439700000	USD
CY2012Q3	biib	Fair Value Adjustment Of Contingent Consideration FairValueAdjustmentOfContingentConsideration	9456000	USD
	biib	Fair Value Adjustment Of Contingent Consideration FairValueAdjustmentOfContingentConsideration	5900000	USD
CY2011Q3	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainIncludedInEarnings	1800000	USD
	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainIncludedInEarnings	2500000	USD
	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainIncludedInEarnings	4900000	USD
CY2012Q3	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainIncludedInEarnings	1400000	USD
	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLossIncludedInEarnings	1500000	USD
	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLossIncludedInEarnings	3600000	USD
CY2011Q3	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLossIncludedInEarnings	200000	USD
CY2012Q3	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLossIncludedInEarnings	1600000	USD
	biib	Maximum Term For Accounts Receivable MaximumTermForAccountsReceivable	P90D
CY2011Q4	biib	Federal Deposit Insurance Corporation Guaranteed Senior Notes Issued Under Temporary Liquidity Guarantee Program FederalDepositInsuranceCorporationGuaranteedSeniorNotesIssuedUnderTemporaryLiquidityGuaranteeProgram	214000000	USD
CY2012Q3	biib	Federal Deposit Insurance Corporation Guaranteed Senior Notes Issued Under Temporary Liquidity Guarantee Program FederalDepositInsuranceCorporationGuaranteedSeniorNotesIssuedUnderTemporaryLiquidityGuaranteeProgram	89100000	USD
	biib	Gain Loss From Sale Of Strategic Equity Investments GainLossFromSaleOfStrategicEquityInvestments	13800000	USD
	biib	Gain On Sale Of Rights GainOnSaleOfRights	31719000	USD
	biib	Limited Period For Government Reimbursement LimitedPeriodForGovernmentReimbursement	P24M
	biib	Gain On Sale Of Rights GainOnSaleOfRights	0	USD
CY2011Q3	biib	Gain On Sale Of Rights GainOnSaleOfRights	0	USD
CY2012Q3	biib	Gain On Sale Of Rights GainOnSaleOfRights	31719000	USD
CY2012Q3	biib	Impairment Charges Related To Investments In Privately Held Companies ImpairmentChargesRelatedToInvestmentsInPrivatelyHeldCompanies	3500000	USD
	biib	Impairment Charges Related To Investments In Privately Held Companies ImpairmentChargesRelatedToInvestmentsInPrivatelyHeldCompanies	4800000	USD
	biib	Impairment Charges Related To Investments In Privately Held Companies ImpairmentChargesRelatedToInvestmentsInPrivatelyHeldCompanies	7600000	USD
CY2011Q3	biib	Impairment Charges Related To Investments In Privately Held Companies ImpairmentChargesRelatedToInvestmentsInPrivatelyHeldCompanies	800000	USD
	biib	Impairment Charges Related To Investments In Publicly Held Companies ImpairmentChargesRelatedToInvestmentsInPubliclyHeldCompanies	0	USD
CY2012Q3	biib	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	4031900000	USD
CY2011Q4	biib	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	3807500000	USD
	biib	Interest In Subsidiary InterestInSubsidiary	1
CY2012Q3	biib	Inventory Various Programs Gross InventoryVariousProgramsGross	13800000	USD
CY2012Q3	biib	Investment In Biotechnology Companies That Are Determined To Be Unconsolidated Variable Interest Entities InvestmentInBiotechnologyCompaniesThatAreDeterminedToBeUnconsolidatedVariableInterestEntities	9300000	USD
CY2011Q4	biib	Investment In Biotechnology Companies That Are Determined To Be Unconsolidated Variable Interest Entities InvestmentInBiotechnologyCompaniesThatAreDeterminedToBeUnconsolidatedVariableInterestEntities	14600000	USD
	biib	Minimum Term For Accounts Receivable MinimumTermForAccountsReceivable	P30D
CY2011Q3	biib	Net Income Loss Attributable To Noncontrolling Interests Net Of Tax NetIncomeLossAttributableToNoncontrollingInterestsNetOfTax	1900000	USD
	biib	Net Income Loss Attributable To Noncontrolling Interests Net Of Tax NetIncomeLossAttributableToNoncontrollingInterestsNetOfTax	0	USD
	biib	Net Income Loss Attributable To Noncontrolling Interests Net Of Tax NetIncomeLossAttributableToNoncontrollingInterestsNetOfTax	32300000	USD
CY2012Q3	biib	Net Income Loss Attributable To Noncontrolling Interests Net Of Tax NetIncomeLossAttributableToNoncontrollingInterestsNetOfTax	0	USD
CY2011Q3	biib	Number Of Marketable Equity Investments Sold NumberOfMarketableEquityInvestmentsSold	1	Investment
	biib	Number Of Reportable Segment NumberOfReportableSegment	1	segment
CY2012Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	236596922	shares
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	BIOGEN IDEC INC.
CY2011Q4	biib	Other Accrued Expenses And Other OtherAccruedExpensesAndOther	173100000	USD
CY2012Q3	biib	Other Accrued Expenses And Other OtherAccruedExpensesAndOther	200600000	USD
CY2012Q3	biib	Other Goodwill Adjustments OtherGoodwillAdjustments	6800000	USD
CY2011	biib	Other Goodwill Adjustments OtherGoodwillAdjustments	0	USD
	biib	Other Goodwill Adjustments OtherGoodwillAdjustments	6800000	USD
CY2011Q3	biib	Other Income Expense Net OtherIncomeExpenseNet	600000	USD
	biib	Other Income Expense Net OtherIncomeExpenseNet	700000	USD
CY2012Q3	biib	Other Income Expense Net OtherIncomeExpenseNet	400000	USD
	biib	Other Income Expense Net OtherIncomeExpenseNet	3100000	USD
	biib	Payment Terms Of Accounts Receivable PaymentTermsOfAccountsReceivable	30 to 90 days
CY2012Q3	biib	Payments Of Contingent Consideration Obligations PaymentsOfContingentConsiderationObligations	0	USD
	biib	Payments Of Contingent Consideration Obligations PaymentsOfContingentConsiderationObligations	6500000	USD
	biib	Payments Of Contingent Consideration Obligations PaymentsOfContingentConsiderationObligations	0	USD
CY2011Q3	biib	Payments Of Contingent Consideration Obligations PaymentsOfContingentConsiderationObligations	0	USD
	biib	Payments Returns Applied Against Product Revenue Reserves Relating To Current Year PaymentsReturnsAppliedAgainstProductRevenueReservesRelatingToCurrentYear	291500000	USD
	biib	Payments Returns Applied Against Product Revenue Reserves Relating To Prior Year PaymentsReturnsAppliedAgainstProductRevenueReservesRelatingToPriorYear	104200000	USD
CY2012Q3	biib	Percentage Of Venture Capital Investments To Assets PercentageOfVentureCapitalInvestmentsToAssets	0.003
CY2011Q4	biib	Percentage Of Venture Capital Investments To Assets PercentageOfVentureCapitalInvestmentsToAssets	0.003
CY2011Q4	biib	Product Revenue Reserves ProductRevenueReserves	155600000	USD
CY2012Q3	biib	Product Revenue Reserves ProductRevenueReserves	209200000	USD
CY2011Q4	biib	Product Revenue Reserves Classified As Reduction Of Accounts Receivable ProductRevenueReservesClassifiedAsReductionOfAccountsReceivable	40600000	USD
CY2012Q3	biib	Product Revenue Reserves Classified As Reduction Of Accounts Receivable ProductRevenueReservesClassifiedAsReductionOfAccountsReceivable	49000000	USD
CY2011Q4	biib	Product Revenue Reserves Classified As Reduction Of Current Liabilities ProductRevenueReservesClassifiedAsReductionOfCurrentLiabilities	115000000	USD
CY2012Q3	biib	Product Revenue Reserves Classified As Reduction Of Current Liabilities ProductRevenueReservesClassifiedAsReductionOfCurrentLiabilities	160200000	USD
CY2009	biib	Proposed Disallowance By Tax Authorities For Payment For Services ProposedDisallowanceByTaxAuthoritiesForPaymentForServices	130000000	USD
CY2007	biib	Proposed Disallowance By Tax Authorities For Payment For Services ProposedDisallowanceByTaxAuthoritiesForPaymentForServices	130000000	USD
CY2008	biib	Proposed Disallowance By Tax Authorities For Payment For Services ProposedDisallowanceByTaxAuthoritiesForPaymentForServices	130000000	USD
	biib	Reimbursement Limit Stated In Resolution ReimbursementLimitStatedInResolution	P24M
CY2012Q3	biib	Revenue Related Rebates RevenueRelatedRebates	160200000	USD
CY2011Q4	biib	Revenue Related Rebates RevenueRelatedRebates	115000000	USD
CY2011Q3	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	266471000	USD
CY2012Q3	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	287792000	USD
	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	739054000	USD
	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	856975000	USD
CY2012Q3	biib	Unrealized Gain Losses On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossesOnForeignCurrencyDerivativesNetBeforeTax	5900000	USD
	dei	Amendment Flag AmendmentFlag	false
CY2011Q4	biib	Unrealized Gain Losses On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossesOnForeignCurrencyDerivativesNetBeforeTax	36500000	USD
CY2012Q3	biib	Venture Capital Investments VentureCapitalInvestments	26400000	USD
CY2011Q4	biib	Venture Capital Investments VentureCapitalInvestments	23600000	USD
	biib	Share Based Compensation Expense Included In Costs And Expenses ShareBasedCompensationExpenseIncludedInCostsAndExpenses	107700000	USD
CY2012Q3	biib	Share Based Compensation Expense Included In Costs And Expenses ShareBasedCompensationExpenseIncludedInCostsAndExpenses	44200000	USD
CY2011Q3	biib	Share Based Compensation Expense Included In Costs And Expenses ShareBasedCompensationExpenseIncludedInCostsAndExpenses	35300000	USD
	biib	Share Based Compensation Expense Included In Costs And Expenses ShareBasedCompensationExpenseIncludedInCostsAndExpenses	133300000	USD
	biib	Stipulated Royalty Rate StipulatedRoyaltyRate	0.005
CY2011Q4	biib	Strategic Investment Portfolio StrategicInvestmentPortfolio	62800000	USD
CY2012Q3	biib	Strategic Investment Portfolio StrategicInvestmentPortfolio	60700000	USD
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
	dei	Document Period End Date DocumentPeriodEndDate	2012-09-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000875045

Files In Submission

Name	View Source	Status
0000875045-12-000010-index-headers.html	Edgar Link	pending
0000875045-12-000010-index.html	Edgar Link	pending
0000875045-12-000010.txt	Edgar Link	pending
0000875045-12-000010-xbrl.zip	Edgar Link	pending
biib-20120930.xml	Edgar Link	completed
biib-20120930.xsd	Edgar Link	pending
biib-20120930_cal.xml	Edgar Link	unprocessable
biib-20120930_def.xml	Edgar Link	unprocessable
biib-20120930_lab.xml	Edgar Link	unprocessable
biib-20120930_pre.xml	Edgar Link	unprocessable
biib-2012930x10q.htm	Edgar Link	pending
biib-2012930xex31.htm	Edgar Link	pending
biib-2012930xex311.htm	Edgar Link	pending
biib-2012930xex312.htm	Edgar Link	pending
biib-2012930xex321.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$BIIB
BIOGEN INC. Stock $biib

2012 Q4 Form 10-Q Financial Statement

#000087504512000010 Filed on October 25, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BIIB BIOGEN INC. Stock $biib

2012 Q4 Form 10-Q Financial Statement

#000087504512000010 Filed on October 25, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BIIB
BIOGEN INC. Stock $biib