$BIIB
BIOGEN INC. Stock $biib

$biib Overview Financials Valuation SEC Filings Company Website

2012 Form 10-K Financial Statement

#000087504513000006 Filed on February 05, 2013

Income Statement

Concept	2012	2011 Q4	2011 Q3
Revenue	$5.516B	$1.327B	$1.310B
YoY Change	9.27%	8.83%	11.41%
Cost Of Revenue	$545.5M	$139.6M	$123.5M
YoY Change	16.86%	39.18%	28.81%
Gross Profit	$4.971B	$1.187B	$1.186B
YoY Change	8.49%	6.1%	9.86%
Gross Profit Margin	90.11%	89.48%	90.57%
Selling, General & Admin	$1.277B	$283.9M	$261.4M
YoY Change	20.96%	2.71%	7.04%
% of Gross Profit	25.7%	23.92%	22.03%
Research & Development	$1.335B	$338.9M	$301.4M
YoY Change	9.46%	16.54%	-5.55%
% of Gross Profit	26.85%	28.55%	25.4%
Depreciation & Amortization	$365.6M	$88.70M	$87.40M
YoY Change	1.87%	-7.22%	-3.0%
% of Gross Profit	7.36%	7.47%	7.37%
Operating Expenses	$2.612B	$703.9M	$562.8M
YoY Change	14.79%	13.42%	-8.76%
Operating Profit	$1.856B	$483.2M	$488.5M
YoY Change	7.6%	-3.01%	5.48%
Interest Expense	$36.50M	-$73.60M	$7.900M
YoY Change	10.61%	-0.27%	-111.47%
% of Operating Profit	1.97%	-15.23%	1.62%
Other Income/Expense, Net	-$744.0K	$100.0K	-$7.727M
YoY Change	-94.48%	-96.43%	-1065.88%
Pretax Income	$1.398B	$405.1M	$480.8M
YoY Change	-0.77%	15.58%	156.82%
Income Tax	$470.6M	$104.9M	$127.1M
% Of Pretax Income	33.66%	25.89%	26.44%
Net Earnings	$1.380B	$300.2M	$351.8M
YoY Change	11.8%	24.93%	38.45%
Net Earnings / Revenue	25.02%	22.63%	26.86%
Basic Earnings Per Share	$5.80	$1.24	$1.45
Diluted Earnings Per Share	$5.76	$1.22	$1.43
COMMON SHARES
Basic Shares Outstanding	237.9M shares		242.9M shares
Diluted Shares Outstanding	239.7M shares		245.4M shares

Balance Sheet

Concept	2012	2011 Q4	2011 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.706B	$1.691B	$1.520B
YoY Change	0.89%	39.98%	84.24%
Cash & Equivalents	$571.0M	$514.5M	$575.1M
Short-Term Investments	$1.135B	$1.176B	$944.0M
Other Short-Term Assets	$136.0M	$144.6M	$173.0M
YoY Change	-6.21%	-28.77%	-13.07%
Inventory	$447.0M	$326.8M	$311.0M
Prepaid Expenses
Receivables	$955.0M	$584.6M	$813.0M
Other Receivables	$0.00	$0.00	$20.00M
Total Short-Term Assets	$3.244B	$2.975B	$2.837B
YoY Change	9.04%	17.14%	33.13%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.742B	$1.571B	$1.572B
YoY Change	10.88%	-4.3%	-4.26%
Goodwill		$1.146B
YoY Change		0.0%
Intangibles		$1.608B
YoY Change
Long-Term Investments	$2.311B	$1.748B	$1.587B
YoY Change	32.21%	76.39%	106.91%
Other Assets		$331.5M
YoY Change
Total Long-Term Assets	$6.886B	$6.074B	$5.965B
YoY Change	13.35%	9.41%	13.34%
TOTAL ASSETS
Total Short-Term Assets	$3.244B	$2.975B	$2.837B
Total Long-Term Assets	$6.886B	$6.074B	$5.965B
Total Assets	$10.13B	$9.050B	$8.802B
YoY Change	11.93%	11.83%	19.04%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$204.0M	$186.4M	$159.0M
YoY Change	9.68%	14.39%	10.42%
Accrued Expenses	$485.0M	$339.0M	$331.0M
YoY Change	84.41%	-18.31%	-40.25%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$453.0M	$3.000M	$3.000M
YoY Change	15000.0%	-97.81%	-72.73%
Total Short-Term Liabilities	$1.657B	$912.9M	$885.0M
YoY Change	81.49%	-13.06%	7.4%
LONG-TERM LIABILITIES
Long-Term Debt	$687.0M	$1.061B	$1.061B
YoY Change	-35.25%	-0.47%	-0.75%
Other Long-Term Liabilities	$604.0M	$400.3M	$384.0M
YoY Change	51.0%	22.78%	50.0%
Total Long-Term Liabilities	$1.291B	$400.3M	$1.445B
YoY Change	-11.64%	-71.24%	9.06%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.657B	$912.9M	$885.0M
Total Long-Term Liabilities	$1.291B	$400.3M	$1.445B
Total Liabilities	$3.169B	$2.623B	$2.573B
YoY Change	20.77%	-2.72%	8.89%
SHAREHOLDERS EQUITY
Retained Earnings		$3.107B
YoY Change
Common Stock		$128.0K
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)		$839.9M
YoY Change
Treasury Stock Shares		13.52B shares
Shareholders Equity	$6.962B	$6.425B	$6.229B
YoY Change
Total Liabilities & Shareholders Equity	$10.13B	$9.050B	$8.802B
YoY Change	11.93%	11.83%	19.04%

Cashflow Statement

Concept	2012	2011 Q4	2011 Q3
OPERATING ACTIVITIES
Net Income	$1.380B	$300.2M	$351.8M
YoY Change	11.8%	24.93%	38.45%
Depreciation, Depletion And Amortization	$365.6M	$88.70M	$87.40M
YoY Change	1.87%	-7.22%	-3.0%
Cash From Operating Activities	$1.880B	$473.9M	$570.6M
YoY Change	8.81%	9.93%	33.26%
INVESTING ACTIVITIES
Capital Expenditures	$254.5M	-$70.50M	-$81.00M
YoY Change	22.37%	44.17%	108.23%
Acquisitions	$72.40M
YoY Change	1348.02%
Other Investing Activities	$38.52M	-$319.1M	-$506.1M
YoY Change	126.58%	-32.08%	1543.18%
Cash From Investing Activities	-$950.3M	-$389.5M	-$587.2M
YoY Change	-42.41%	-24.89%	741.26%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$984.7M
YoY Change	97.74%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$877.5M	-142.8M	-99.20M
YoY Change	174.33%	-163.21%	-78.49%
NET CHANGE
Cash From Operating Activities	$1.880B	473.9M	570.6M
Cash From Investing Activities	-$950.3M	-389.5M	-587.2M
Cash From Financing Activities	-$877.5M	-142.8M	-99.20M
Net Change In Cash	$52.08M	-58.40M	-115.8M
YoY Change	-121.48%	-142.2%	12.65%
FREE CASH FLOW
Cash From Operating Activities	$1.880B	$473.9M	$570.6M
Capital Expenditures	$254.5M	-$70.50M	-$81.00M
Free Cash Flow	$1.625B	$544.4M	$651.6M
YoY Change	6.95%	13.42%	39.5%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	203999000	USD
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	186448000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	686848000	USD
CY2011Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	584603000	USD
CY2011Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	47400000	USD
CY2012Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	45200000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	941100000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	782100000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	4200000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-10700000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	32800000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	21700000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	9000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-27100000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-50300000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-26535000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-55305000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3854525000	USD
CY2011Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	4185048000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	50383000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	49387000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	19307000	USD
CY2011	us-gaap	Advertising Expense AdvertisingExpense	45300000	USD
CY2010	us-gaap	Advertising Expense AdvertisingExpense	35300000	USD
CY2012	us-gaap	Advertising Expense AdvertisingExpense	54300000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	117347000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	123956000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	171435000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	202204000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	208566000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	208928000	USD
CY2012Q4	us-gaap	Assets Assets	10130118000	USD
CY2011Q4	us-gaap	Assets Assets	9049604000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	3244337000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	2975427000	USD
CY2011Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	2592800000	USD
CY2012Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	3168000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	1741200000	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
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	1744300000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	2592800000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	3168000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1134500000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1175600000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	1176100000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	1135000000	USD
CY2011Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	2592900000	USD
CY2012Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	3171700000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	18800000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	3900000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	2100000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	2300000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	2500000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	3500000	USD
CY2011Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	3100000	USD
CY2012Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	1900000	USD
CY2011Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	3200000	USD
CY2012Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	5600000	USD
CY2012Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	902500000	USD
CY2011Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	597900000	USD
CY2011Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	151000000	USD
CY2010Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	81200000	USD
CY2012Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	293900000	USD
CY2011	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability	36000000	USD
CY2012	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability	27200000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	570721000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	514542000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	759598000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	581889000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	52077000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-242415000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	185079000	USD
CY2012Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	439400000	USD
CY2011Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	399800000	USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	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 Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	255633000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	254237000	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	242115000	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	236582000	shares
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	128000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	127000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1351263000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	933167000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1229503000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-37161000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-65000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	108940000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	824227000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1266664000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1351328000	USD
CY2012Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	212300000	USD
CY2011Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	553600000	USD
CY2012	us-gaap	Cost Of Revenue CostOfRevenue	545494000	USD
CY2010	us-gaap	Cost Of Revenue CostOfRevenue	400262000	USD
CY2011	us-gaap	Cost Of Revenue CostOfRevenue	466780000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	3707404000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	3323943000	USD
CY2010	us-gaap	Costs And Expenses CostsAndExpenses	3467534000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	231700000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	507900000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	357700000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	44100000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	44000000	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	35400000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	587500000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	290900000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	412700000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	35600000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	15100000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	19600000	USD
CY2011Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	1160400000	USD
CY2012Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	1155300000	USD
CY2012	us-gaap	Debt Instrument Maturity Date Description DebtInstrumentMaturityDateDescription	less than 90 days
CY2012	us-gaap	Debt Instrument Payment Terms DebtInstrumentPaymentTerms	100% of the principal amount plus accrued interest and a specified make-whole amount
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	160900000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-70600000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-133000000	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	29100000	USD
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4200000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	800000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	153576000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-81410000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-116900000	USD
CY2012Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	148000000	USD
CY2011Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	69600000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-13000000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-8100000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-6600000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	118300000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	104100000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	421300000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	357700000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	37500000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	22900000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	45700000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	57800000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	60000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	69300000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	54700000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	58600000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	10800000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	12300000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	598200000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	609700000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	50800000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	76800000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	384800000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	411300000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	248644000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	217272000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	28100000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	20100000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	20500000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	10000000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	32800000	USD
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	26300000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	24800000	USD
CY2010	us-gaap	Depreciation And Amortization DepreciationAndAmortization	355744000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	358933000	USD
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	365648000	USD
CY2011	us-gaap	Depreciation Nonproduction DepreciationNonproduction	143900000	USD
CY2010	us-gaap	Depreciation Nonproduction DepreciationNonproduction	144900000	USD
CY2012	us-gaap	Depreciation Nonproduction DepreciationNonproduction	164300000	USD
CY2012	us-gaap	Derivative Higher Remaining Maturity Range1 DerivativeHigherRemainingMaturityRange1	P12M
CY2011	us-gaap	Derivative Higher Remaining Maturity Range1 DerivativeHigherRemainingMaturityRange1	P12M
CY2010	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-45700000	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-35100000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	36900000	USD
CY2012	us-gaap	Derivative Lower Remaining Maturity Range1 DerivativeLowerRemainingMaturityRange1	P1M
CY2011	us-gaap	Derivative Lower Remaining Maturity Range1 DerivativeLowerRemainingMaturityRange1	P1M
CY2012	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	-4800000	USD
CY2011	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	3900000	USD
CY2010	us-gaap	Derivative Net Hedge Ineffectiveness Gain Loss DerivativeNetHedgeIneffectivenessGainLoss	-400000	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.09
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.80
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.98
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.62
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.24
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.26
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.68
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.24
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.19
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.22
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.45
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.76
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.94
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.04
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.61
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.67
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.25
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.22
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.20
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.18
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.43
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-7370000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-2641000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	4102000	USD
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.260
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.254
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.269
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.062
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.059
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.107
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation And Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciationAndAmortization	0.013
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation And Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciationAndAmortization	0.012
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation And Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciationAndAmortization	0.019
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.020
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.025
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.012
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	0.000
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	0.050
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	0.000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.000
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.010
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.012
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.017
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.009
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.017
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.030
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.044
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.035
CY2011Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	176300000	USD
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	248500000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	-4500000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	-5400000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	-3500000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	160000000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	38800000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	291900000	USD
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	164400000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	44600000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	60300000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	53400000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	47500000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	20900000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	16000000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	13136000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	54738000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	50586000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	54738000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	13136000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	50586000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	600000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	1700000	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	23500000	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	20800000	USD
CY2012Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	20300000	USD
CY2012	us-gaap	Fair Value Measurements Changes In Valuation Techniques FairValueMeasurementsChangesInValuationTechniques	0
CY2011	us-gaap	Fair Value Measurements Changes In Valuation Techniques FairValueMeasurementsChangesInValuationTechniques	0
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2199300000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2401700000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	207400000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	113900000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	147900000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	166400000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	190000000	USD
CY2011Q4	us-gaap	Foreign Currency Derivative Instruments Not Designated As Hedging Instruments At Fair Value Net ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAtFairValueNet	6400000	USD
CY2012Q4	us-gaap	Foreign Currency Derivative Instruments Not Designated As Hedging Instruments At Fair Value Net ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAtFairValueNet	1700000	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-6300000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-3500000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2500000	USD
CY2011Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	37600000	USD
CY2012Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	46900000	USD
CY2012Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions FutureMinimumSubleaseRentalsSaleLeasebackTransactions	1000000	USD
CY2012Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Thereafter FutureMinimumSubleaseRentalsSaleLeasebackTransactionsThereafter	0	USD
CY2012Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Within Five Years FutureMinimumSubleaseRentalsSaleLeasebackTransactionsWithinFiveYears	0	USD
CY2012Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Within Four Years FutureMinimumSubleaseRentalsSaleLeasebackTransactionsWithinFourYears	0	USD
CY2012Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Within One Year FutureMinimumSubleaseRentalsSaleLeasebackTransactionsWithinOneYear	500000	USD
CY2012Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Within Three Years FutureMinimumSubleaseRentalsSaleLeasebackTransactionsWithinThreeYears	0	USD
CY2012Q4	us-gaap	Future Minimum Sublease Rentals Sale Leaseback Transactions Within Two Years FutureMinimumSubleaseRentalsSaleLeasebackTransactionsWithinTwoYears	500000	USD
CY2011	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	12100000	USD
CY2012	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	4200000	USD
CY2012	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	10600000	USD
CY2010	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	14200000	USD
CY2011	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	18800000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	1146314000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	1201296000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	1146314000	USD
CY2012	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	48200000	USD
CY2011	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2012Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1855105000	USD
CY2010	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2011Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	73600000	USD
CY2011Q4	us-gaap	Inventory Finished Goods And Work In Process InventoryFinishedGoodsAndWorkInProcess	243000000	USD
CY2012Q2	us-gaap	Gross Profit GrossProfit	1281800000	USD
CY2012Q1	us-gaap	Gross Profit GrossProfit	1158800000	USD
CY2012Q4	us-gaap	Gross Profit GrossProfit	1284100000	USD
CY2012	us-gaap	Gross Profit GrossProfit	4971000000	USD
CY2012Q3	us-gaap	Gross Profit GrossProfit	1246200000	USD
CY2011Q2	us-gaap	Gross Profit GrossProfit	1108100000	USD
CY2011Q4	us-gaap	Gross Profit GrossProfit	1187100000	USD
CY2011	us-gaap	Gross Profit GrossProfit	4581900000	USD
CY2011Q1	us-gaap	Gross Profit GrossProfit	1100200000	USD
CY2011Q3	us-gaap	Gross Profit GrossProfit	1186400000	USD
CY2012	us-gaap	Impairment Of Investments ImpairmentOfInvestments	5500000	USD
CY2010	us-gaap	Impairment Of Investments ImpairmentOfInvestments	19200000	USD
CY2011	us-gaap	Impairment Of Investments ImpairmentOfInvestments	9900000	USD
CY2012	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2011	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1408900000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1398000000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	846400000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	383500000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	302300000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	457100000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1711214000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1229906000	USD
CY2012Q4	us-gaap	Inventory Finished Goods And Work In Process InventoryFinishedGoodsAndWorkInProcess	345600000	USD
CY2011Q4	us-gaap	Inventory Net InventoryNet	326843000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	447373000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-4518000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	470554000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	444528000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	331333000	USD
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	394700000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	332700000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	526600000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-3571000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	99227000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	73374000	USD
CY2011	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	33722000	USD
CY2010	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	130875000	USD
CY2012	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	273372000	USD
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	4527000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	140309000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	59219000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	27347000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	43241000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	12584000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	34112000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-36235000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	17692000	USD
CY2012Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1631547000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1608191000	USD
CY2011	us-gaap	Interest Expense InterestExpense	33000000	USD
CY2010	us-gaap	Interest Expense InterestExpense	36100000	USD
CY2012	us-gaap	Interest Expense InterestExpense	36500000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	65400000	USD
CY2010	us-gaap	Interest Paid Net InterestPaidNet	68100000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	66700000	USD
CY2012Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	115100000	USD
CY2011Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	83800000	USD
CY2012Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	101800000	USD
CY2011Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	169400000	USD
CY2012Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	230500000	USD
CY2012	us-gaap	Inventory Write Down InventoryWriteDown	24821000	USD
CY2010	us-gaap	Inventory Write Down InventoryWriteDown	11808000	USD
CY2011	us-gaap	Inventory Write Down InventoryWriteDown	25446000	USD
CY2010	us-gaap	Investment Income Interest InvestmentIncomeInterest	22300000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	29500000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	19200000	USD
CY2012Q4	us-gaap	Land Land	55700000	USD
CY2011Q4	us-gaap	Land Land	51900000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	49000000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	46200000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	44800000	USD
CY2012Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	107300000	USD
CY2011Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	102700000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	2622617000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	3166323000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9049604000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10130118000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	912889000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1657389000	USD
CY2012Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	71700000	USD
CY2012Q4	us-gaap	Line Of Credit Facility Amount Outstanding LineOfCreditFacilityAmountOutstanding	0	USD
CY2012Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	360000000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	1020900000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	553500000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	453400000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	3500000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	3500000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	3500000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	3500000	USD
CY2011Q4	us-gaap	Long Term Notes Payable LongTermNotesPayable	1060808000	USD
CY2012Q4	us-gaap	Long Term Notes Payable LongTermNotesPayable	687396000	USD
CY2012Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	882000000	USD
CY2011Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	570100000	USD
CY2011Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	1176115000	USD
CY2012Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	1134989000	USD
CY2012Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	2036658000	USD
CY2011Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	1416737000	USD
CY2012	us-gaap	Maximum Remaining Maturity Of Foreign Currency Derivatives1 MaximumRemainingMaturityOfForeignCurrencyDerivatives1	P12M
CY2012Q4	us-gaap	Minority Interest MinorityInterest	2272000	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	1488000	USD
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	27062000	USD
CY2012	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1199000	USD
CY2010	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	33891000	USD
CY2011	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	187337000	USD
CY2012	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	73000	USD
CY2010	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	2488000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-877478000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-319862000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1784919000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	345325000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1650294000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-950342000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1624673000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1879897000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1727741000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	1380033000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	1234428000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	1005273000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	292100000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	302700000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	398400000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	386800000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	351800000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	300200000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	294300000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	288000000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	32258000	USD
CY2010	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-106700000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1233900000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1003300000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1380000000	USD
CY2012	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	-556000	USD
CY2010Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1826200000	USD
CY2011Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1838400000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	49700000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	53700000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	58500000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	398200000	USD
CY2011Q4	us-gaap	Other Assets Current OtherAssetsCurrent	144600000	USD
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	136011000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	274054000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	331548000	USD
CY2012Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1742200000	USD
CY2012Q4	us-gaap	Notes Payable Current NotesPayableCurrent	453379000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-12408000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	1144000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	4177000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	7288000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	689000	USD
CY2011Q4	us-gaap	Notional Amount Of Foreign Currency Derivative Instruments Not Designated As Hedging Instruments NotionalAmountOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	263700000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	1248889000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	23230000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-25834000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-60039000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	1855849000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	1724691000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	654800000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	45600000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	49100000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-22000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-28705000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-74346000	USD
CY2011Q4	us-gaap	Notes Payable Current NotesPayableCurrent	3292000	USD
CY2012Q4	us-gaap	Notional Amount Of Foreign Currency Cash Flow Hedge Derivatives NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives	524000000	USD
CY2011Q4	us-gaap	Notional Amount Of Foreign Currency Cash Flow Hedge Derivatives NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives	532300000	USD
CY2012Q4	us-gaap	Notional Amount Of Foreign Currency Derivative Instruments Not Designated As Hedging Instruments NotionalAmountOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	243200000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	2454000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-43521000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-11269000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	42597000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	964000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	4756000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	4915000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4925000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-28770000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-72106000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	12656000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	1942000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	9280000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	-31713000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	9767000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-12184000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-903000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-9631000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	486000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	7155000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	5656000	USD
CY2011	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	215920000	USD
CY2012Q3	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	58600000	USD
CY2012Q2	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	59600000	USD
CY2012Q1	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	32000000	USD
CY2012Q4	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	62300000	USD
CY2011Q4	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	72600000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	-1502000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	1268000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	304000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	3360000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-9767000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	32830000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-11808000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	1268000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	3647000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	1396000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-224000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	10775000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	5080000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	2940000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	133000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	6345000	USD
CY2011Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	677210000	USD
CY2012Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	979945000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	400276000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	604266000	USD
CY2011	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-9228000	USD
CY2010	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-10333000	USD
CY2012	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-31537000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-13477000	USD
CY2010	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-18983000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-744000	USD
CY2012	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	212464000	USD
CY2010	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	169123000	USD
CY2011Q3	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	67700000	USD
CY2011Q1	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	40100000	USD
CY2011Q2	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	35500000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	984715000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2077579000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	497975000	USD
CY2012	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	6634000	USD
CY2011	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	44155000	USD
CY2010	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2010	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	1988394000	USD
CY2012	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	3334434000	USD
CY2011	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	16324000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	173055000	USD
CY2011	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	3696995000	USD
CY2012	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	41941000	USD
CY2010	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	4492000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	208020000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	254548000	USD
CY2012	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	2726000	USD
CY2011	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	27062000	USD
CY2010	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	23475000	USD
CY2012	us-gaap	Pension Expense PensionExpense	3800000	USD
CY2010	us-gaap	Pension Expense PensionExpense	3000000	USD
CY2011	us-gaap	Pension Expense PensionExpense	3600000	USD
CY2011	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	500000	USD
CY2012	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2010	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	2000000	USD
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	8000000	shares
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	8000000	shares
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2011Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	314650000	USD
CY2012	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	67493000	USD
CY2010	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	183486000	USD
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	10606000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-338000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-7340000	USD
CY2012	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	2749558000	USD
CY2011	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	2276720000	USD
CY2010	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	2668694000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	1380033000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	1266686000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	898573000	USD
CY2012Q4	us-gaap	Profit Loss ProfitLoss	292100000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	398400000	USD
CY2012Q1	us-gaap	Profit Loss ProfitLoss	302400000	USD
CY2012Q2	us-gaap	Profit Loss ProfitLoss	387100000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	353700000	USD
CY2011Q1	us-gaap	Profit Loss ProfitLoss	308800000	USD
CY2011Q4	us-gaap	Profit Loss ProfitLoss	300200000	USD
CY2011Q2	us-gaap	Profit Loss ProfitLoss	304000000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2353500000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2683300000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1742226000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1571387000	USD
CY2010	us-gaap	Research And Development In Process ResearchAndDevelopmentInProcess	271376000	USD
CY2012	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	2428000	USD
CY2011	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	11459000	USD
CY2010	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	18073000	USD
CY2010	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1248604000	USD
CY2011	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1219602000	USD
CY2012	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1334919000	USD
CY2011	us-gaap	Research And Development In Process ResearchAndDevelopmentInProcess	0	USD
CY2012	us-gaap	Research And Development In Process ResearchAndDevelopmentInProcess	0	USD
CY2012	us-gaap	Restructuring Charges RestructuringCharges	2225000	USD
CY2011	us-gaap	Restructuring Charges RestructuringCharges	19026000	USD
CY2010	us-gaap	Restructuring Charges RestructuringCharges	75153000	USD
CY2011Q4	us-gaap	Restructuring Reserve RestructuringReserve	1400000	USD
CY2010Q4	us-gaap	Restructuring Reserve RestructuringReserve	66400000	USD
CY2012Q4	us-gaap	Restructuring Reserve RestructuringReserve	0	USD
CY2011	us-gaap	Restructuring Reserve Accrual Adjustment RestructuringReserveAccrualAdjustment	-2900000	USD
CY2011	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	85700000	USD
CY2012	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	1400000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	4486794000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3106761000	USD
CY2010	us-gaap	Revenues Revenues	4716423000	USD
CY2012	us-gaap	Revenues Revenues	5516461000	USD
CY2011	us-gaap	Revenues Revenues	5048634000	USD
CY2012Q1	us-gaap	Revenues Revenues	1292000000	USD
CY2012Q3	us-gaap	Revenues Revenues	1385500000	USD
CY2012Q4	us-gaap	Revenues Revenues	1417900000	USD
CY2012Q2	us-gaap	Revenues Revenues	1421000000	USD
CY2011Q4	us-gaap	Revenues Revenues	1326700000	USD
CY2011Q3	us-gaap	Revenues Revenues	1309900000	USD
CY2011Q1	us-gaap	Revenues Revenues	1203300000	USD
CY2011Q2	us-gaap	Revenues Revenues	1208600000	USD
CY2010	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	3470056000	USD
CY2012	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	4166074000	USD
CY2011	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	3836117000	USD
CY2012Q3	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	1039100000	USD
CY2012Q1	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	975400000	USD
CY2012Q2	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	1076800000	USD
CY2012Q4	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	1074700000	USD
CY2011Q1	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	907100000	USD
CY2011Q4	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	996600000	USD
CY2011Q2	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	956700000	USD
CY2011Q3	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	975800000	USD
CY2010	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1031540000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1277465000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1056133000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	167826000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	118566000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	113005000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.308
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.000
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.000
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.020
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.000
CY2010	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-54840000	USD
CY2011	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	314649000	USD
CY2012	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	67493000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.000
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	0	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	0	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	800000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	54.87
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	63000000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	50500000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	149000000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	19000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	16.52
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0.00
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0.00
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	83300000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1691000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	907000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	54.48
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	52.75
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	83100000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	900000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	54.48
CY2010	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y6M
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P0Y
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P0Y
CY2012Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	72100000	USD
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y5M
CY2012	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	300000	shares
CY2010	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	600000	shares
CY2011	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	400000	shares
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	765000	shares
CY2012	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	28700000	USD
CY2011	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	22800000	USD
CY2010	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	23500000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-50953000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-71357000	USD
CY2010	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	183486000	USD
CY2012Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	6200000	shares
CY2011Q1	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	20000000	shares
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	6425499000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	6961523000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2300000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1900000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6963795000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6426987000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5449443000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6261882000	USD
CY2011Q3	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	7000000	USD
CY2012Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	20066000	USD
CY2011Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	45939000	USD
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	13518000000	shares
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	17655000000	shares
CY2011	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	6000000	shares
CY2012	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	7800000	shares
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	839903000	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1324618000	USD
CY2011	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	497975000	USD
CY2012	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	984715000	USD
CY2010	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2077579000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	121500000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	64400000	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	147100000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	125900000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	18600000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	18500000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	75800000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	800000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	20300000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	29800000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2200000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	13000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3600000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	69800000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	13300000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	48600000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	2500000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	3900000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3700000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	109500000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	26200000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	31300000	USD
CY2012	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-align:left;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of our consolidated financial statements requires us to make estimates, judgments, and assumptions that may affect the reported amounts of assets, liabilities, equity, revenues and expenses, and related disclosure of contingent assets and liabilities. On an on-going basis, we evaluate our estimates and judgments and methodologies. 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>
CY2012	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	10900000	USD
CY2012	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1800000	shares
CY2011	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2600000	shares
CY2010	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2600000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	245033000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	239740000	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	254867000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	6000000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	40300000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	5800000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	242395000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	252307000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	237938000	shares
CY2012Q4	biib	Accounts Receivable Outstanding For Greater Than One Year AccountsReceivableOutstandingForGreaterThanOneYear	11800000	USD
CY2011Q4	biib	Accounts Receivable Outstanding For Greater Than One Year AccountsReceivableOutstandingForGreaterThanOneYear	56000000	USD
CY2012Q4	biib	Accrued Expenses On Funding Commitment Related To Clinical Research AccruedExpensesOnFundingCommitmentRelatedToClinicalResearch	26500000	USD
CY2011	biib	Acquired In Process Research And Development AcquiredInProcessResearchAndDevelopment	0	USD
CY2012	biib	Acquired In Process Research And Development AcquiredInProcessResearchAndDevelopment	0	USD
CY2010	biib	Acquired In Process Research And Development AcquiredInProcessResearchAndDevelopment	244976000	USD
CY2012	biib	Acquisitions Of Businesses And Variable Interest Entities Net Of Cash Acquired AcquisitionsOfBusinessesAndVariableInterestEntitiesNetOfCashAcquired	72401000	USD
CY2011	biib	Acquisitions Of Businesses And Variable Interest Entities Net Of Cash Acquired AcquisitionsOfBusinessesAndVariableInterestEntitiesNetOfCashAcquired	5000000	USD
CY2010	biib	Acquisitions Of Businesses And Variable Interest Entities Net Of Cash Acquired AcquisitionsOfBusinessesAndVariableInterestEntitiesNetOfCashAcquired	157428000	USD
CY2011	biib	Adjustments To Additional Paid In Capital Due To Modified Restructuring Awards Settling In Cash AdjustmentsToAdditionalPaidInCapitalDueToModifiedRestructuringAwardsSettlingInCash	8172000	USD
CY2011	biib	Adjustments To Product Revenue Reserves Relating To Sales In Prior Years AdjustmentsToProductRevenueReservesRelatingToSalesInPriorYears	14900000	USD
CY2012	biib	Adjustments To Product Revenue Reserves Relating To Sales In Prior Years AdjustmentsToProductRevenueReservesRelatingToSalesInPriorYears	5100000	USD
CY2010	biib	Adjustments To Product Revenue Reserves Relating To Sales In Prior Years AdjustmentsToProductRevenueReservesRelatingToSalesInPriorYears	6900000	USD
CY2010	biib	Allocated Share Based Compensation Expense Net AllocatedShareBasedCompensationExpenseNet	193100000	USD
CY2012	biib	Allocated Share Based Compensation Expense Net AllocatedShareBasedCompensationExpenseNet	184300000	USD
CY2011	biib	Allocated Share Based Compensation Expense Net AllocatedShareBasedCompensationExpenseNet	150100000	USD
CY2012Q4	biib	Approximately Funding Commitments In Biotechnology Oriented Venture Capital Funds ApproximatelyFundingCommitmentsInBiotechnologyOrientedVentureCapitalFunds	11600000	USD
CY2006Q4	biib	Assessment Of Tax Including Penalties And Interest AssessmentOfTaxIncludingPenaltiesAndInterest	38900000	USD
CY2010Q2	biib	Assessment Of Tax Including Penalties And Interest AssessmentOfTaxIncludingPenaltiesAndInterest	103500000	USD
CY2012	biib	Automatic Renewal Period For Resolution AutomaticRenewalPeriodForResolution	P24M
CY2011Q4	biib	Available For Sale Securities Debt Maturities After Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsAmortizedCost	165800000	USD
CY2012Q4	biib	Available For Sale Securities Debt Maturities After Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsAmortizedCost	292300000	USD
CY2011Q4	biib	Available For Sale Securities Debt Maturities After Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsFairValue	165200000	USD
CY2012Q4	biib	Available For Sale Securities Debt Maturities After Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsFairValue	292400000	USD
CY2012	biib	Average Maturity Of Marketable Securities AverageMaturityOfMarketableSecurities	P14M
CY2011	biib	Average Maturity Of Marketable Securities AverageMaturityOfMarketableSecurities	P14M
CY2012	biib	Business Acquisition Contingent Consideration Acquisitions At Fair Value BusinessAcquisitionContingentConsiderationAcquisitionsAtFairValue	122200000	USD
CY2011	biib	Business Acquisition Contingent Consideration Acquisitions At Fair Value BusinessAcquisitionContingentConsiderationAcquisitionsAtFairValue	38800000	USD
CY2012	biib	Business Acquisition Contingent Consideration Cash Payment BusinessAcquisitionContingentConsiderationCashPayment	2500000	USD
CY2011	biib	Business Acquisition Contingent Consideration Cash Payment BusinessAcquisitionContingentConsiderationCashPayment	0	USD
CY2010	biib	Business Acquisition Contingent Consideration Cash Payment BusinessAcquisitionContingentConsiderationCashPayment	0	USD
CY2012Q4	biib	Cancellable Future Commitments CancellableFutureCommitments	440000000	USD
CY2012Q4	biib	Clinical Development Expenses ClinicalDevelopmentExpenses	51600000	USD
CY2011Q4	biib	Clinical Development Expenses ClinicalDevelopmentExpenses	40800000	USD
CY2011Q4	biib	Collaboration Expenses CollaborationExpenses	44200000	USD
CY2012Q4	biib	Collaboration Expenses CollaborationExpenses	37400000	USD
CY2012	biib	Collaboration Profit Sharing CollaborationProfitSharing	317895000	USD
CY2011	biib	Collaboration Profit Sharing CollaborationProfitSharing	317771000	USD
CY2010	biib	Collaboration Profit Sharing CollaborationProfitSharing	258071000	USD
CY2012	biib	Compensation Expense Over Purchase Period CompensationExpenseOverPurchasePeriod	The fair value of the look-back provision plus the 15% discount
CY2012Q4	biib	Computer Software And Hardware ComputerSoftwareAndHardware	476600000	USD
CY2011Q4	biib	Computer Software And Hardware ComputerSoftwareAndHardware	439700000	USD
CY2012Q4	biib	Current Portion Of Contingent Consideration Obligations CurrentPortionOfContingentConsiderationObligations	22400000	USD
CY2011Q4	biib	Current Portion Of Contingent Consideration Obligations CurrentPortionOfContingentConsiderationObligations	10800000	USD
CY2012	biib	Current Provisions To Product Revenue Reserves Relating To Sales In Current Year CurrentProvisionsToProductRevenueReservesRelatingToSalesInCurrentYear	652700000	USD
CY2011	biib	Current Provisions To Product Revenue Reserves Relating To Sales In Current Year CurrentProvisionsToProductRevenueReservesRelatingToSalesInCurrentYear	472100000	USD
CY2010	biib	Current Provisions To Product Revenue Reserves Relating To Sales In Current Year CurrentProvisionsToProductRevenueReservesRelatingToSalesInCurrentYear	381700000	USD
CY2012	biib	Damages Claimed DamagesClaimed	181000000	EUR
CY2012Q4	biib	Debt Instrument Unamortized Interest On Debt DebtInstrumentUnamortizedInterestOnDebt	39100000	USD
CY2012Q4	biib	Deferred Tax Assets Capitalized Costs DeferredTaxAssetsCapitalizedCosts	7600000	USD
CY2011Q4	biib	Deferred Tax Assets Capitalized Costs DeferredTaxAssetsCapitalizedCosts	5300000	USD
CY2012Q4	biib	Deferred Tax Assets Intangible Net DeferredTaxAssetsIntangibleNet	84500000	USD
CY2011Q4	biib	Deferred Tax Assets Intangible Net DeferredTaxAssetsIntangibleNet	75800000	USD
CY2011Q4	biib	Deferred Tax Liabilities Depreciation Amortization Other DeferredTaxLiabilitiesDepreciationAmortizationOther	133100000	USD
CY2012Q4	biib	Deferred Tax Liabilities Depreciation Amortization Other DeferredTaxLiabilitiesDepreciationAmortizationOther	146400000	USD
CY2011Q4	biib	Deferred Tax Liabilities Unrealized Gain On Investments And Cumulative Translation Adjustment DeferredTaxLiabilitiesUnrealizedGainOnInvestmentsAndCumulativeTranslationAdjustment	3500000	USD
CY2012Q4	biib	Deferred Tax Liabilities Unrealized Gain On Investments And Cumulative Translation Adjustment DeferredTaxLiabilitiesUnrealizedGainOnInvestmentsAndCumulativeTranslationAdjustment	1200000	USD
CY2012	biib	Discount Rate Recognized In Compensation Expense DiscountRateRecognizedInCompensationExpense	0.15
CY2012Q4	biib	Due From Unconsolidated Joint Business DueFromUnconsolidatedJointBusiness	268395000	USD
CY2011Q4	biib	Due From Unconsolidated Joint Business DueFromUnconsolidatedJointBusiness	228724000	USD
CY2011	biib	Effective Income Tax Rate Reconciliation Contingent Consideration EffectiveIncomeTaxRateReconciliationContingentConsideration	0.007
CY2010	biib	Effective Income Tax Rate Reconciliation Contingent Consideration EffectiveIncomeTaxRateReconciliationContingentConsideration	0.000
CY2012	biib	Effective Income Tax Rate Reconciliation Contingent Consideration EffectiveIncomeTaxRateReconciliationContingentConsideration	0.005
CY2012	biib	Estimated Useful Lives Of Leasehold Improvements EstimatedUsefulLivesOfLeaseholdImprovements	Lesser of the useful life or the term of the respective lease
CY2011	biib	Fair Value Adjustment Of Contingent Consideration FairValueAdjustmentOfContingentConsideration	36065000	USD
CY2010	biib	Fair Value Adjustment Of Contingent Consideration FairValueAdjustmentOfContingentConsideration	0	USD
CY2012	biib	Fair Value Adjustment Of Contingent Consideration FairValueAdjustmentOfContingentConsideration	27202000	USD
CY2011	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainIncludedInEarnings	2400000	USD
CY2012	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainIncludedInEarnings	5400000	USD
CY2012	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLossIncludedInEarnings	9200000	USD
CY2011	biib	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLossIncludedInEarnings	1400000	USD
CY2010	biib	Fair Value Of Assets And Liabilities Acquired And Assigned To Noncontrolling Interest FairValueOfAssetsAndLiabilitiesAcquiredAndAssignedToNoncontrollingInterest	-145000000	USD
CY2011Q4	biib	Federal Deposit Insurance Corporation Guaranteed Senior Notes Issued Under Temporary Liquidity Guarantee Program FederalDepositInsuranceCorporationGuaranteedSeniorNotesIssuedUnderTemporaryLiquidityGuaranteeProgram	214000000	USD
CY2012Q4	biib	Finitelivedintangibleassetsfutureamortization Finitelivedintangibleassetsfutureamortization	825600000	USD
CY2011	biib	Gain Loss From Sale Of Strategic Equity Investments GainLossFromSaleOfStrategicEquityInvestments	13500000	USD
CY2011	biib	Gain On Sale Of Rights GainOnSaleOfRights	0	USD
CY2010	biib	Gain On Sale Of Rights GainOnSaleOfRights	0	USD
CY2012	biib	Gain On Sale Of Rights GainOnSaleOfRights	46792000	USD
CY2012	biib	Headcount Reduction Percentage Due To Consolidation Of Sites HeadcountReductionPercentageDueToConsolidationOfSites	0.13
CY2011	biib	Impairment Charges Related To Investments In Privately Held Companies ImpairmentChargesRelatedToInvestmentsInPrivatelyHeldCompanies	9900000	USD
CY2010	biib	Impairment Charges Related To Investments In Privately Held Companies ImpairmentChargesRelatedToInvestmentsInPrivatelyHeldCompanies	19200000	USD
CY2012	biib	Impairment Charges Related To Investments In Privately Held Companies ImpairmentChargesRelatedToInvestmentsInPrivatelyHeldCompanies	5500000	USD
CY2011	biib	Increase Decrease In Due From Unconsolidated Joint Business IncreaseDecreaseInDueFromUnconsolidatedJointBusiness	6265000	USD
CY2012	biib	Increase Decrease In Due From Unconsolidated Joint Business IncreaseDecreaseInDueFromUnconsolidatedJointBusiness	39671000	USD
CY2010	biib	Increase Decrease In Due From Unconsolidated Joint Business IncreaseDecreaseInDueFromUnconsolidatedJointBusiness	28670000	USD
	biib	Incremental Charge Related To Stock Options Rsus And Pvrsus IncrementalChargeRelatedToStockOptionsRsusAndPvrsus	18600000	USD
CY2011Q4	biib	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	3807500000	USD
CY2012Q4	biib	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	4033200000	USD
CY2012	biib	Interest In Subsidiary InterestInSubsidiary	1.00
CY2012Q4	biib	Inventory Various Programs Gross InventoryVariousProgramsGross	38300000	USD
CY2011Q4	biib	Investment In Biotechnology Companies That Are Determined To Be Unconsolidated Variable Interest Entities InvestmentInBiotechnologyCompaniesThatAreDeterminedToBeUnconsolidatedVariableInterestEntities	14600000	USD
CY2012Q4	biib	Investment In Biotechnology Companies That Are Determined To Be Unconsolidated Variable Interest Entities InvestmentInBiotechnologyCompaniesThatAreDeterminedToBeUnconsolidatedVariableInterestEntities	9400000	USD
CY2012	biib	Limited Period For Government Reimbursement LimitedPeriodForGovernmentReimbursement	P24M
CY2012	biib	Maximum Term For Accounts Receivable MaximumTermForAccountsReceivable	P90D
CY2012	biib	Minimum Term For Accounts Receivable MinimumTermForAccountsReceivable	P30D
CY2011	biib	Net Income Loss Attributable To Noncontrolling Interest Percentage NetIncomeLossAttributableToNoncontrollingInterestPercentage	0.50
CY2011	biib	Net Interest Expense Benefit NetInterestExpenseBenefit	12900000	USD
CY2012	biib	Net Interest Expense Benefit NetInterestExpenseBenefit	100000	USD
CY2010	biib	Net Interest Expense Benefit NetInterestExpenseBenefit	700000	USD
CY2012Q4	biib	Net Minimum Lease Payments NetMinimumLeasePayments	653800000	USD
CY2012Q4	biib	Net Minimum Lease Payments Thereafter NetMinimumLeasePaymentsThereafter	398200000	USD
CY2012Q4	biib	Net Minimum Lease Payments With In Five Year NetMinimumLeasePaymentsWithInFiveYear	49100000	USD
CY2012Q4	biib	Net Minimum Lease Payments With In Four Year NetMinimumLeasePaymentsWithInFourYear	49700000	USD
CY2012Q4	biib	Net Minimum Lease Payments With In One Year NetMinimumLeasePaymentsWithInOneYear	45100000	USD
CY2012Q4	biib	Net Minimum Lease Payments With In Three Year NetMinimumLeasePaymentsWithInThreeYear	53700000	USD
CY2012Q4	biib	Net Minimum Lease Payments With In Two Year NetMinimumLeasePaymentsWithInTwoYear	58000000	USD
CY2011	biib	Net Proceeds From Financing Arrangement For Sale Of Facility NetProceedsFromFinancingArrangementForSaleOfFacility	0	USD
CY2012	biib	Net Proceeds From Financing Arrangement For Sale Of Facility NetProceedsFromFinancingArrangementForSaleOfFacility	0	USD
CY2010	biib	Net Proceeds From Financing Arrangement For Sale Of Facility NetProceedsFromFinancingArrangementForSaleOfFacility	126980000	USD
CY2010	biib	Noncontrolling Interest Increase Termination Of Relationship With Less Than Majority Owned Subsidiary NoncontrollingInterestIncreaseTerminationOfRelationshipWithLessThanMajorityOwnedSubsidiary	7928000	USD
CY2012	biib	Number Of Reportable Segment NumberOfReportableSegment	1	segment
CY2012	biib	Number Of Share Based Compensation Plans Pursuant To Which Awards Are Currently Being Made NumberOfShareBasedCompensationPlansPursuantToWhichAwardsAreCurrentlyBeingMade	3	Plan
CY2012	biib	Number Of Share Based Compensation Plans Pursuant To Which No Further Awards Will Be Made NumberOfShareBasedCompensationPlansPursuantToWhichNoFurtherAwardsWillBeMade	5	Plan
CY2011	biib	Number Of Strategic Investments Sold NumberOfStrategicInvestmentsSold	4	Investment
CY2010	biib	Number Of Strategic Investments Sold NumberOfStrategicInvestmentsSold	1	Investment
CY2011Q4	biib	Other Accrued Expenses And Other OtherAccruedExpensesAndOther	173100000	USD
CY2012Q4	biib	Other Accrued Expenses And Other OtherAccruedExpensesAndOther	235800000	USD
CY2011	biib	Other Adjustments OtherAdjustments	5400000	USD
CY2012	biib	Other Goodwill Adjustments OtherGoodwillAdjustments	6800000	USD
CY2011	biib	Other Goodwill Adjustments OtherGoodwillAdjustments	0	USD
CY2011	biib	Other Income Expense Net OtherIncomeExpenseNet	-2300000	USD
CY2012	biib	Other Income Expense Net OtherIncomeExpenseNet	3700000	USD
CY2010	biib	Other Income Expense Net OtherIncomeExpenseNet	3300000	USD
CY2012	biib	Payment Terms Of Accounts Receivable PaymentTermsOfAccountsReceivable	30 to 90 days
CY2010	biib	Payments For Acquisition Of Noncontrolling Interest PaymentsForAcquisitionOfNoncontrollingInterest	0	USD
CY2012	biib	Payments For Acquisition Of Noncontrolling Interest PaymentsForAcquisitionOfNoncontrollingInterest	0	USD
CY2011	biib	Payments For Acquisition Of Noncontrolling Interest PaymentsForAcquisitionOfNoncontrollingInterest	148264000	USD
CY2011	biib	Payments Of Contingent Consideration Obligations PaymentsOfContingentConsiderationObligations	5000000	USD
CY2012	biib	Payments Of Contingent Consideration Obligations PaymentsOfContingentConsiderationObligations	6500000	USD
CY2012	biib	Payments Returns Applied Against Product Revenue Reserves Relating To Current Year PaymentsReturnsAppliedAgainstProductRevenueReservesRelatingToCurrentYear	451100000	USD
CY2010	biib	Payments Returns Applied Against Product Revenue Reserves Relating To Current Year PaymentsReturnsAppliedAgainstProductRevenueReservesRelatingToCurrentYear	253800000	USD
CY2011	biib	Payments Returns Applied Against Product Revenue Reserves Relating To Current Year PaymentsReturnsAppliedAgainstProductRevenueReservesRelatingToCurrentYear	350700000	USD
CY2012	biib	Payments Returns Applied Against Product Revenue Reserves Relating To Prior Year PaymentsReturnsAppliedAgainstProductRevenueReservesRelatingToPriorYear	115000000	USD
CY2010	biib	Payments Returns Applied Against Product Revenue Reserves Relating To Prior Year PaymentsReturnsAppliedAgainstProductRevenueReservesRelatingToPriorYear	82100000	USD
CY2011	biib	Payments Returns Applied Against Product Revenue Reserves Relating To Prior Year PaymentsReturnsAppliedAgainstProductRevenueReservesRelatingToPriorYear	92900000	USD
CY2012	biib	Percentage Of Market Value Per Share Of Common Stock PercentageOfMarketValuePerShareOfCommonStock	0.85
CY2012	biib	Percentage Of Minimum Investment Return PercentageOfMinimumInvestmentReturn	0.015
CY2011	biib	Percentage Of Minimum Investment Return PercentageOfMinimumInvestmentReturn	0.020
CY2010	biib	Percentage Of Minimum Investment Return PercentageOfMinimumInvestmentReturn	0.02
CY2011	biib	Percentage Of Operations Of Joint Venture Investments Reflected In Consolidated Financial Statements PercentageOfOperationsOfJointVentureInvestmentsReflectedInConsolidatedFinancialStatements	1.00
CY2012	biib	Percentage Of Redemption Of Notes PercentageOfRedemptionOfNotes	1
CY2012Q4	biib	Percentage Of Venture Capital Investments To Assets PercentageOfVentureCapitalInvestmentsToAssets	0.002
CY2011Q4	biib	Percentage Of Venture Capital Investments To Assets PercentageOfVentureCapitalInvestmentsToAssets	0.002
CY2011Q4	biib	Percentage Receivables Of Wholesale Distributor Accounted In Consolidated Receivables PercentageReceivablesOfWholesaleDistributorAccountedInConsolidatedReceivables	0.141
CY2012Q4	biib	Percentage Receivables Of Wholesale Distributor Accounted In Consolidated Receivables PercentageReceivablesOfWholesaleDistributorAccountedInConsolidatedReceivables	0.145
CY2012Q4	biib	Potential Future Milestone Payments Commitment To Third Party Approximately PotentialFutureMilestonePaymentsCommitmentToThirdPartyApproximately	1500000000	USD
CY2010	biib	Proceeds From Sale Of Strategic Investments And Long Lived Assets ProceedsFromSaleOfStrategicInvestmentsAndLongLivedAssets	0	USD
CY2011	biib	Proceeds From Sale Of Strategic Investments And Long Lived Assets ProceedsFromSaleOfStrategicInvestmentsAndLongLivedAssets	43480000	USD
CY2012	biib	Proceeds From Sale Of Strategic Investments And Long Lived Assets ProceedsFromSaleOfStrategicInvestmentsAndLongLivedAssets	10058000	USD
CY2012Q4	biib	Product Revenue Reserves ProductRevenueReserves	237100000	USD
CY2011Q4	biib	Product Revenue Reserves ProductRevenueReserves	155600000	USD
CY2010Q4	biib	Product Revenue Reserves ProductRevenueReserves	142000000	USD
CY2009Q4	biib	Product Revenue Reserves ProductRevenueReserves	103100000	USD
CY2012Q4	biib	Product Revenue Reserves Classified As Reduction Of Accounts Receivable ProductRevenueReservesClassifiedAsReductionOfAccountsReceivable	46100000	USD
CY2011Q4	biib	Product Revenue Reserves Classified As Reduction Of Accounts Receivable ProductRevenueReservesClassifiedAsReductionOfAccountsReceivable	40600000	USD
CY2011Q4	biib	Product Revenue Reserves Classified As Reduction Of Current Liabilities ProductRevenueReservesClassifiedAsReductionOfCurrentLiabilities	115000000	USD
CY2012Q4	biib	Product Revenue Reserves Classified As Reduction Of Current Liabilities ProductRevenueReservesClassifiedAsReductionOfCurrentLiabilities	191000000	USD
CY2011Q4	biib	Proposed Disallowance By Tax Authorities For Payment For Services ProposedDisallowanceByTaxAuthoritiesForPaymentForServices	130000000	USD
CY2012	biib	Purchase Price Of Common Stock Under Espp PurchasePriceOfCommonStockUnderEspp	85% of the lower of (i) the market value per share of the common stock on the participant's entry date into an offering period or (ii) the market value per share of the common stock on the purchase date
CY2012	biib	Reimbursement Limit Stated In Resolution ReimbursementLimitStatedInResolution	P24M
CY2011	biib	Restructuring Liability Period Expense RestructuringLiabilityPeriodExpense	18200000	USD
CY2012	biib	Retirement Of Common Stock RetirementOfCommonStock	0	USD
CY2010	biib	Retirement Of Common Stock RetirementOfCommonStock	0	USD
CY2012Q4	biib	Revenue Related Rebates RevenueRelatedRebates	191000000	USD
CY2011Q4	biib	Revenue Related Rebates RevenueRelatedRebates	115000000	USD
CY2011	biib	Revenues From Unconsolidated Joint Business RevenuesFromUnconsolidatedJointBusiness	996600000	USD
CY2010	biib	Revenues From Unconsolidated Joint Business RevenuesFromUnconsolidatedJointBusiness	1077200000	USD
CY2012	biib	Revenues From Unconsolidated Joint Business RevenuesFromUnconsolidatedJointBusiness	1137900000	USD
CY2011	biib	Revenues In Percentage From Unconsolidated Joint Business RevenuesInPercentageFromUnconsolidatedJointBusiness	0.20
CY2010	biib	Revenues In Percentage From Unconsolidated Joint Business RevenuesInPercentageFromUnconsolidatedJointBusiness	0.23
CY2012	biib	Revenues In Percentage From Unconsolidated Joint Business RevenuesInPercentageFromUnconsolidatedJointBusiness	0.21
CY2011	biib	Selling Price Of Strategic Investments SellingPriceOfStrategicInvestments	40600000	USD
CY2010	biib	Selling Price Of Strategic Investments SellingPriceOfStrategicInvestments	1800000	USD
CY2012	biib	Share Based Compensation Arrangement By Share Based Payments Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentsAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	50.72
CY2012	biib	Share Based Compensation Arrangement By Share Based Payments Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentsAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	51.99
CY2012	biib	Share Based Compensation Arrangement By Share Based Payments Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentsAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.00
CY2012Q4	biib	Share Based Compensation Arrangements By Share Based Payment Award Options Exercisable Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm	P4Y1M
CY2012Q4	biib	Share Based Compensation Arrangements By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm	P4Y5M
CY2010	biib	Share Based Compensation Expense Included In Costs And Expenses ShareBasedCompensationExpenseIncludedInCostsAndExpenses	189600000	USD
CY2012	biib	Share Based Compensation Expense Included In Costs And Expenses ShareBasedCompensationExpenseIncludedInCostsAndExpenses	178900000	USD
CY2011	biib	Share Based Compensation Expense Included In Costs And Expenses ShareBasedCompensationExpenseIncludedInCostsAndExpenses	145600000	USD
CY2012Q4	biib	Significant Receivables Or Payables Related To Cost Sharing Arrangements With Unconsolidated Variable Interest Entities SignificantReceivablesOrPayablesRelatedToCostSharingArrangementsWithUnconsolidatedVariableInterestEntities	0	USD
CY2011Q4	biib	Significant Receivables Or Payables Related To Cost Sharing Arrangements With Unconsolidated Variable Interest Entities SignificantReceivablesOrPayablesRelatedToCostSharingArrangementsWithUnconsolidatedVariableInterestEntities	0	USD
	biib	Stipulated Royalty Rate StipulatedRoyaltyRate	0.005
CY2011Q4	biib	Strategic Investment Portfolio StrategicInvestmentPortfolio	62800000	USD
CY2012Q4	biib	Strategic Investment Portfolio StrategicInvestmentPortfolio	64200000	USD
CY2012	biib	Tax Accounting Correction TaxAccountingCorrection	29000000	USD
CY2011Q3	biib	Tax Adjustments And Settlements Interest TaxAdjustmentsAndSettlementsInterest	5000000	USD
CY2011	biib	Tax On Unrealized Gains On Foreign Currency Forward Contracts TaxOnUnrealizedGainsOnForeignCurrencyForwardContracts	3600000	USD
CY2012	biib	Tax On Unrealized Gains On Foreign Currency Forward Contracts TaxOnUnrealizedGainsOnForeignCurrencyForwardContracts	1100000	USD
CY2012	biib	Tax On Unrealized Holding Gains Losses On Investments TaxOnUnrealizedHoldingGainsLossesOnInvestments	2500000	USD
CY2011	biib	Tax On Unrealized Holding Gains Losses On Investments TaxOnUnrealizedHoldingGainsLossesOnInvestments	100000	USD
CY2012	biib	Term Of Grant Vested To Board Of Director TermOfGrantVestedToBoardOfDirector	P3Y
CY2012	biib	Term Of Stock Option Grants To Directors TermOfStockOptionGrantsToDirectors	P10Y
CY2012	biib	Term Of Stock Option Grants To Employees TermOfStockOptionGrantsToEmployees	P10Y
CY2012	biib	Term Of Stock Option Vest To Employees TermOfStockOptionVestToEmployees	P4Y
CY2011	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	996597000	USD
CY2010	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	1077244000	USD
CY2012	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	1137923000	USD
CY2012Q3	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	287800000	USD
CY2012Q1	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	284600000	USD
CY2012Q2	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	284600000	USD
CY2012Q4	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	280900000	USD
CY2011Q4	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	257500000	USD
CY2011Q2	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	216500000	USD
CY2011Q3	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	266500000	USD
CY2011Q1	biib	Unconsolidated Joint Business UnconsolidatedJointBusiness	256100000	USD
CY2012Q4	biib	Undistributed Foreign Earnings Of Non Us Subsidiaries UndistributedForeignEarningsOfNonUsSubsidiaries	3300000000	USD
CY2012Q4	biib	Unrealized Gain Losses On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossesOnForeignCurrencyDerivativesNetBeforeTax	11800000	USD
CY2010Q4	biib	Unrealized Gain Losses On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossesOnForeignCurrencyDerivativesNetBeforeTax	11000000	USD
CY2011Q4	biib	Unrealized Gain Losses On Foreign Currency Derivatives Net Before Tax UnrealizedGainLossesOnForeignCurrencyDerivativesNetBeforeTax	-36500000	USD
CY2011Q4	biib	Venture Capital Investments VentureCapitalInvestments	23600000	USD
CY2012Q4	biib	Venture Capital Investments VentureCapitalInvestments	29300000	USD
CY2011	biib	Venture Capital Investments As Percentage Of Our Assets VentureCapitalInvestmentsAsPercentageOfOurAssets	approximately 0.2% of total assets
CY2012	biib	Venture Capital Investments As Percentage Of Our Assets VentureCapitalInvestmentsAsPercentageOfOurAssets	approximately 0.2% of total assets
CY2012Q4	biib	Weighted Average Period To Recognize Cost Of Nonvested Awards WeightedAveragePeriodToRecognizeCostOfNonvestedAwards	P1Y5M
CY2010	biib	Windfall Tax Benefits From Vesting Of Stock Awards Exercises Of Stock Options And Espp Participation WindfallTaxBenefitsFromVestingOfStockAwardsExercisesOfStockOptionsAndEsppParticipation	13100000	USD
CY2012	biib	Windfall Tax Benefits From Vesting Of Stock Awards Exercises Of Stock Options And Espp Participation WindfallTaxBenefitsFromVestingOfStockAwardsExercisesOfStockOptionsAndEsppParticipation	54700000	USD
CY2011	biib	Windfall Tax Benefits From Vesting Of Stock Awards Exercises Of Stock Options And Espp Participation WindfallTaxBenefitsFromVestingOfStockAwardsExercisesOfStockOptionsAndEsppParticipation	50600000	USD
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0000875045
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	236312191	shares
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012Q2	dei	Entity Public Float EntityPublicFloat	34138379832	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	BIOGEN IDEC INC.
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
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$BIIB
BIOGEN INC. Stock $biib

2012 Form 10-K Financial Statement

#000087504513000006 Filed on February 05, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BIIB BIOGEN INC. Stock $biib

2012 Form 10-K Financial Statement

#000087504513000006 Filed on February 05, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BIIB
BIOGEN INC. Stock $biib