v2.4.0.6
Segment, Geographic and Other Revenue Information - Revenues By Geographic Region (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues $ 67,425 [1] $ 67,057 [1] $ 49,269 [1]
Developed Europe [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 16,297 [2] 16,345 [2] 12,586 [2]
Developed Europe [Member] | Euro [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues $ 12,000 $ 12,000 $ 10,000
[1] For 2011, includes King commencing on the acquisition date of January 31, 2011. For 2009, includes Wyeth commencing on the acquisition date of October 15, 2009.
[2] Developed Europe region includes the following markets: Western Europe, Finland and the Scandinavian countries. Euro revenues were approximately $12 billion for each of 2011 and 2010 and $10 billion for 2009.