|**Basis of Presentation and Significant Accounting Policies**                                              | 9 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 and nine months ended August 25, 2013 and August 26, 2012.On June 24, 2013, we completed the full disposition of our Animal Health business (Zoetis), and recognized a gain of approximately$10.4 billion, net of tax, related to the disposal of this business inGain on disposal of discontinued operations––net of taxin the condensed consolidated statements of income for the nine months ended September 29, 2013. The operating results of this business are reported asIncome from discontinued operations––net of taxin the condensed consolidated statements of income for the nine months ended September 29, 2013 and for the three and nine months ended September 30, 2012. In addition, in the condensed consolidated balance sheet as of December 31, 2012, the assets and liabilities associated with this business are classified asAssets of discontinued operations and other assets held for saleandLiabilities of discontinued operations, as appropriate. Prior period financial statements have been restated. For additional information, seeNote 2B. Acquisitions, Divestitures, Collaborative Arrangement and Equity-Method Investments: Divestitures.On November 30, 2012, we completed the sale of our Nutrition business to Nestlé. The operating results of this business are reported asIncome from discontinued operations––net of taxin the condensed consolidated statements of income for the three and nine months endedSeptember 30, 2012. For additional information, seeNote 2B. Acquisitions, Divestitures, Collaborative Arrangement and Equity-Method Investments: 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 condensed consolidated balance sheets and condensed consolidated statements of income.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 in the nine months ended September 29, 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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