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Taxes on Income - Income from Continuing Operations Before Provision for Taxes on Income (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Income Taxes [Line Items]      
Legal matter, asbestos litigation $ 790 [1] $ 1,737 [1] $ 234 [1]
Quigley Co, Inc., a wholly owned subsidiary [Member]
      
Income Taxes [Line Items]      
Legal matter, asbestos litigation   $ 1,300  
[1] In 2011, primarily relates to charges for hormone-replacement therapy litigation. In 2010, includes a $1.3 billion charge for asbestos litigation related to our wholly owned subsidiary, Quigley Company, Inc.