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Debt (Cash Convertible Notes) (Narrative) (Details) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified
 12 Months Ended 6 Months Ended
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2013
Sep. 15, 2011
Sep. 15, 2008
Debt Instrument [Line Items]          
Notes and Loans Payable, Current 2,405,700,000us-gaap_NotesAndLoansPayableCurrent   $ 0us-gaap_NotesAndLoansPayableCurrent    
Old Warrants          
Debt Instrument [Line Items]          
Exercise price of warrants issued         $ 20us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= myl_OldWarrantsMember
Warrants exchanged in amended transaction       41.0myl_NumberOfWarrantsExchanged
/ us-gaap_ClassOfWarrantOrRightAxis
= myl_OldWarrantsMember		  
Old Warrants | Maximum          
Debt Instrument [Line Items]          
Number of common stock issuable for warrants         43.2us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= myl_OldWarrantsMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
New Warrants          
Debt Instrument [Line Items]          
Exercise price of warrants issued       30us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= myl_NewWarrantsMember		  
Cash Convertible Notes          
Debt Instrument [Line Items]          
Trading Days - Consecutive 30 days        
Number of Trading Days 20 days        
Cash Convertible Notes | Convertible Debt          
Debt Instrument [Line Items]          
Face amount of debt 573,100,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		   574,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		   575,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
Debt instrument, interest rate, stated percentage         3.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
Effective interest rate 9.50%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		        
Ratio of observed share price to conversion reference price 130.00%myl_RatioOfObservedSharePriceToConversionReferencePrice
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		        
Reference Principal Amount 1,000myl_ReferencePrincipalAmountOfCashConvertibleNotes
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		        
Conversion reference price 13.32us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		        
Conversion reference rate, per reference principal amount 75.0751us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		        
Equity component carrying amount 1,853,500,000us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		   1,303,300,000us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		    
Unamortized discount 21,000,000us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		   49,000,000us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		    
Notes and Loans Payable, Current 2,405,600,000us-gaap_NotesAndLoansPayableCurrent
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember		 [1]        
Cash Convertible Notes | Convertible Debt | Maximum          
Debt Instrument [Line Items]          
Percent of closing price of common stock and conversion reference rate   98.00%myl_PercentOfClosingPriceOfCommonStockAndConversionReferenceRate
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		      
Cash Convertible Notes | Call option          
Debt Instrument [Line Items]          
Purchased call options 1,853,500,000us-gaap_InvestmentOwnedAtFairValue
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CallOptionMember		 [2]   $ 1,303,300,000us-gaap_InvestmentOwnedAtFairValue
/ us-gaap_DebtInstrumentAxis
= myl_CashConvertibleNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CallOptionMember		 [2]    
[1] (a) As of December 31, 2014 and December 31, 2013, the cash convertible notes were classified as current portion of long-term debt and other long-term obligations and long-term debt, respectively, on the Consolidated Balance Sheets.
[2] (b) As of December 31, 2014 and December 31, 2013, purchased call options were classified as prepaid expenses and other current assets and other assets, respectively, on the Consolidated Balance Sheets.