v2.4.0.6
Segment, Geographic and Other Revenue Information - Revenues By Geographic Region (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]
United States [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 26,933 28,855 21,540
Developed Europe [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 16,297 [2] 16,345 [2] 12,586 [2]
Developed Rest Of World [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 11,091 [3] 10,008 [3] 8,097 [3]
Emerging Markets [Member]
      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues $ 13,104 [4] $ 11,849 [4] $ 7,046 [4]
[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.
[3] Developed Rest of World region includes the following markets: Australia, Canada, Japan, New Zealand, and South Korea.
[4] Emerging Markets region includes, but is not limited to, the following markets: Asia (excluding Japan and South Korea), Latin America, Middle East, Africa, Central and Eastern Europe and Turkey.