Acquisitions and Other Transactions (Pro Forma Financial Information) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]
Basic	373.7	383.3	415.2
Diluted	398.0	394.5	420.2
Agila Specialties
Business Acquisition [Line Items]
Total revenues		7,109	7,036
Net earnings attributable to Mylan Inc. common shareholders		443	530
Basic (in USD per share)		1.16	1.28
Diluted (in USD per share)		1.12	1.26

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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