Earnings Per Common Share Attributable To Mylan Inc. (Narrative) (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	1 Months Ended	3 Months Ended			9 Months Ended					9 Months Ended	0 Months Ended
	May 10, 2012	Sep. 30, 2011	Sep. 30, 2012	Jun. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 15, 2008	Sep. 15, 2008 Old Warrants	Sep. 30, 2011 New Warrants	Sep. 30, 2012 Cash Convertible Notes	Sep. 15, 2008 Convertible Debt Cash Convertible Notes	Sep. 30, 2012 Convertible Debt Cash Convertible Notes	Dec. 31, 2011 Convertible Debt Cash Convertible Notes
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Principal amount of debt instrument												$ 575.0	$ 575.0	$ 575.0
Debt instrument, maturity date											Sep. 15, 2015	Sep. 15, 2015
Warrant rights number of shares								43.2
Warrants issued exercise price per share									20.00	30.00
Number of warrants exchanged		41.0
Shares included in calculation of diluted earnings per share			0.3		1.2	0.2	4.3
Stock repurchase program, authorized amount	500
Treasury stock, shares, acquired through repurchase program				23.4
Treasury stock, value, acquired through repurchase program				$ 500
Anti-dilutive stock options or restricted stock awards excluded from computation of earnings per share			5.7		7.5	7.1	4.9