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Commitment and Contingencies (Matters Resolved During Current Year) (Detail)
$ in Millions
1 Months Ended
Feb. 12, 2016
USD ($)
Oct. 31, 2014
Patents
Jun. 30, 2010
Patents
May. 31, 2010
Patents
Dec. 31, 2009
Actions
Sutent [Member] | Patent Infringement [Member] | Pfizer Versus Mylan Pharmaceuticals Inc. [Member]          
Loss Contingencies [Line Items]          
Number of patents     3 2  
Number of patents infringed upon   2      
Protonix / Pantoprazole [Member] | U.S. Department of Justice Versus Pfizer [Member] | Product Pricing [Member]          
Loss Contingencies [Line Items]          
Number of actions | Actions         2
Gain (loss) from contract settlement | $ $ (784.6)