|**Basis of Presentation and Significant Accounting Policies**                                              | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|**Organization Consolidation And Presentation Of Financial Statements And Accounting Policies [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|Basis of Presentation and Significant Accounting Policies                                                  | Basis of Presentation and Significant Accounting PoliciesA. Basis of PresentationWe prepared the condensed consolidated financial statements following the requirements of the U.S. Securities and Exchange Commission (SEC) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by accounting principles generally accepted in the United States of America (U.S. GAAP) can be condensed or omitted.Balance sheet amounts and operating results for subsidiaries operating outside the U.S. are as of and for the three months ended February 24, 2013, and February 26, 2012.On February 6, 2013, an initial public offering (IPO) of the Class A common stock of our subsidiary, Zoetis Inc. (Zoetis), was completed, pursuant to which we sold99.015 millionshares of Class A common stock of Zoetis, which represented approximately19.8%of the total outstanding Zoetis shares. For additional information, seeNote 2B. Acquisitions, Divestitures, Collaborative Arrangement and Equity-Method Investment: Divestitures.On November 30, 2012, we completed the sale of our Nutrition business to Nestlé. The operating results of this business are reported asDiscontinued operations––net of taxin the condensed consolidated statement of income for the three months endedApril 1, 2012. For additional information, seeNote 2B. Acquisitions, Divestitures, Collaborative Arrangement and Equity-Method Investment: Divestitures.Revenues, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the results and trends in these interim financial statements may not be representative of those for the full year.We are responsible for the unaudited financial statements included in this Quarterly Report on Form 10-Q. The financial statements include all normal and recurring adjustments that are considered necessary for the fair presentation of our financial position and results of operations.The information included in this Quarterly Report on Form 10-Q should be read in conjunction with the consolidated financial statements and accompanying notes included in our 2012 Annual Report on Form 10-K/A.B. Adoption of New Accounting StandardsThere were no new accounting and disclosure standards adopted as of January 1, 2013.C. Fair ValueOur fair value methodologies depend on the following types of inputs:•Quoted prices for identical assets or liabilities in active markets (Level 1 inputs).•Quoted prices for similar assets or liabilities in active markets or quoted prices for identical or similar assets or liabilities in markets that are not active or are directly or indirectly observable (Level 2 inputs).•Unobservable inputs that reflect estimates and assumptions (Level 3 inputs).A single estimate of fair value can result from a complex series of judgments about future events and uncertainties and can rely heavily on estimates and assumptions.
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|•                                                                                                          | Quoted prices for identical assets or liabilities in active markets (Level 1 inputs).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
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|•                                                                                                          | Quoted prices for similar assets or liabilities in active markets or quoted prices for identical or similar assets or liabilities in markets that are not active or are directly or indirectly observable (Level 2 inputs).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
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|•                                                                                                          | Unobservable inputs that reflect estimates and assumptions (Level 3 inputs).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

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