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Acquisitions and Other Transactions (Other Transactions) (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
0 Months Ended 3 Months Ended 0 Months Ended 12 Months Ended
Jan. 30, 2015
Feb. 02, 2015
Sep. 25, 2014
Sep. 10, 2014
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2013
Dec. 31, 2012
Business Acquisition [Line Items]                
Purchase price allocation, goodwill         $ 4,049.3us-gaap_Goodwill   $ 4,340.5us-gaap_Goodwill $ 3,515.6us-gaap_Goodwill
Generics Segment                
Business Acquisition [Line Items]                
Purchase price allocation, goodwill         3,700.2us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= myl_GenericsSegmentMember
  3,991.4us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= myl_GenericsSegmentMember
3,194.1us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= myl_GenericsSegmentMember
Subsequent event | Theravance Biopharma                
Business Acquisition [Line Items]                
Collaborative agreement payment 15myl_PaymentsToAcquireCollaborativeAgreement
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_TypeOfArrangementAxis
= myl_TheravanceBiopharmaMember
             
Equity method investments 30.0us-gaap_EquityMethodInvestments
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_TypeOfArrangementAxis
= myl_TheravanceBiopharmaMember
             
Subsequent event | Maximum | Theravance Biopharma                
Business Acquisition [Line Items]                
Development and sales milestone payments 220myl_Developmentandsalesmilestonepayments
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_TypeOfArrangementAxis
= myl_TheravanceBiopharmaMember
             
Famy Care | Subsequent event                
Business Acquisition [Line Items]                
Acquisition purchase price   750.0us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= myl_FamyCareMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
           
Famy Care | Subsequent event | Maximum                
Business Acquisition [Line Items]                
Purchase consideration, contingent consideration, maximum   50us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
/ us-gaap_BusinessAcquisitionAxis
= myl_FamyCareMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
           
Arixtra                
Business Acquisition [Line Items]                
Acquisition purchase price       300.0us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= myl_ArixtraInjectionMember
       
Cash paid to acquire asset     225.0us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= myl_ArixtraInjectionMember
  37.5us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= myl_ArixtraInjectionMember
     
Escrow Deposit         37.5us-gaap_EscrowDeposit
/ us-gaap_BusinessAcquisitionAxis
= myl_ArixtraInjectionMember
     
Arixtra | Product rights and licenses                
Business Acquisition [Line Items]                
Acquired intangible assets, weighted average useful life, in years       10 years        
Other companies                
Business Acquisition [Line Items]                
Acquisition purchase price           50.0us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= myl_OtherCompaniesMember
   
Identified intangible assets           36.7us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
/ us-gaap_BusinessAcquisitionAxis
= myl_OtherCompaniesMember
   
Purchase price allocation, goodwill           13.3us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= myl_OtherCompaniesMember
   
Other acquisitions                
Business Acquisition [Line Items]                
Cash paid to acquire asset             76.0us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember
 
Other acquisitions | Generics Segment                
Business Acquisition [Line Items]                
Purchase price allocation, goodwill             $ 20.0us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember
/ us-gaap_StatementBusinessSegmentsAxis
= myl_GenericsSegmentMember
 
Other acquisitions | INDIA                
Business Acquisition [Line Items]                
Number of businesses acquired             4us-gaap_NumberOfBusinessesAcquired
/ us-gaap_BusinessAcquisitionAxis
= us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember
/ us-gaap_StatementGeographicalAxis
= country_IN