Acquisitions and Collaborative Agreements (Policies)	9 Months Ended
Acquisitions and Collaborative Agreements (Policies)	Sep. 30, 2012
Business Combinations [Abstract]
Business Combinations Policy [Policy Text Block]	On December 23, 2011, Mylan completed its acquisition of the exclusive worldwide rights to develop, manufacture and commercialize a generic equivalent to GlaxoSmithKline’s Advair^® Diskus and Seretide^® Diskus incorporating Pfizer Inc.’s (“Pfizer”) proprietary dry powder inhaler delivery platform (the “Respiratory Delivery Platform”). As part of the agreement, Mylan will fund the remaining development and capital requirements to bring the products to market. In accordance with GAAP guidance regarding business combinations, the Company accounted for this transaction as a purchase of a business and utilized the purchase method of accounting. Under the purchase method of accounting, the assets acquired and liabilities assumed in the transaction were recorded at the date of acquisition at the estimate of their respective fair values. The total purchase consideration was $348 million. This amount consisted of an initial cash payment of $22 million, approximately $4 million in assumed liabilities, and $322 million of contingent consideration. Pfizer is eligible to receive milestone payments, which are contingent upon future product development achievements including regulatory approvals, market launches, sales targets and profitability. The $322 million of contingent consideration at the acquisition date represents the net present value of expected milestone and profit sharing payments. The purchase price allocation, including the valuation of the contingent payment elements of the purchase price, resulted in in-process research and development (“IPR&D”) of $338 million, fixed assets of $8 million and goodwill of $2 million. The impact on our results of operations since the acquisition date was not material. The amount allocated to acquired IPR&D represents an estimate of the fair value of purchased in-process technology that, as of the closing date of the acquisition, had not reached technological feasibility and had no alternative future use. The fair value of IPR&D was based on the excess earnings method, which utilizes forecasts of expected net cash inflows (including estimates for ongoing costs) and other contributory charges. A discount rate of 12.5% was utilized to discount net cash inflows to present values.

Disclosure of accounting policy for completed business combinations (purchase method, acquisition method or combination of entities under common control). This accounting policy may include a general discussion of the purchase method or acquisition method of accounting (including for example, the treatment accorded contingent consideration, the identification of assets and liabilities, the purchase price allocation process, how the fair values of acquired assets and liabilities are determined) and the entity's specific application thereof. An entity that acquires another entity in a leveraged buyout transaction generally discloses the accounting policy followed by the acquiring entity in determining the basis used to value its interest in the acquired entity, and the rationale for that accounting policy.

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