v2.4.0.6
Segment Information (Product Sales) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Segment Reporting Information [Line Items]    
Product Sales $ 2,208,342 $ 1,863,578
Atripla [Member]
   
Segment Reporting Information [Line Items]    
Product Sales 887,596 744,512
Truvada [Member]
   
Segment Reporting Information [Line Items]    
Product Sales 758,263 673,111
Viread [Member]
   
Segment Reporting Information [Line Items]    
Product Sales 191,693 168,395
Complera/Eviplera [Member]
   
Segment Reporting Information [Line Items]    
Product Sales 52,180 0
Hepsera [Member]
   
Segment Reporting Information [Line Items]    
Product Sales 29,297 38,096
Emtriva [Member]
   
Segment Reporting Information [Line Items]    
Product Sales 6,777 6,576
Antiviral Products [Member]
   
Segment Reporting Information [Line Items]    
Product Sales 1,925,806 1,630,690
AmBisome [Member]
   
Segment Reporting Information [Line Items]    
Product Sales 84,764 78,506
Letairis [Member]
   
Segment Reporting Information [Line Items]    
Product Sales 87,288 62,174
Ranexa [Member]
   
Segment Reporting Information [Line Items]    
Product Sales 83,201 68,293
Other Products [Member]
   
Segment Reporting Information [Line Items]    
Product Sales $ 27,283 $ 23,915