|**Commitments and Contingencies (Detail) (USD $)**                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | 1 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |     | 1 Months Ended |     | 1 Months Ended | 3 Months Ended |   |             |            |   |   | 1 Months Ended |   |   |         | 3 Months Ended | 1 Months Ended |   | 1 Months Ended | 12 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended | 1 Months Ended
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|**Loss Contingencies [Line Items]**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Period of Exclusivity                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                | 6 months       |   |             |            |   |   |                |   |   | 6 years | 6 months       |                |   |                |                 |                |                |                 |               
|Notice of appeal and related motion                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Number of patents                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   | 3 | 2              | 3 | 3 | 3       |                |                |   |                |                 |                |                |                 |               
|Number of other patents                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   | 2 |         |                |                |   |                |                 |                |                |                 |               
|Number of Claims, Infringement of Formulation Process                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   | 2       |                |                |   |                |                 |                |                |                 |               
|Product litigation charge, pre-tax                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | $ (83,000,000)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | [1] | $ 814,000,000  | [1] |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Product litigation charge, after-tax                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|The minimum percentage of votes needed from claimants to approve the proposed bankruptcy reorganization plan                                                                                                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Percentage of claimants that agreed to 2004 proposed settlement                                                                                                                                                                                                                                                                                                                                                                                                                                                        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Gross settlement amount offered                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Loss Contingency Claims Payment Amount For Qualified Claimants Second Payment                                                                                                                                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Loss Contingency Settled Payment Of Legal Costs Of Plaintiff                                                                                                                                                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Loss Contingency Claims Payment Amount For Qualified Claimants First Payment                                                                                                                                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Number of Ad Hoc Committee claimants agreeing to the company's proposed settlement offer                                                                                                                                                                                                                                                                                                                                                                                                                               |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Agreed upon amount of assets (cash and non-cash) to be contributed to a special purpose trust created to pay claimants, if Quigley's proposed reorganization plan is approved by the court                                                                                                                                                                                                                                                                                                                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Insurance settlement, gross recovery                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 | 405,000,000    |                |                 |               
|Insurance settlement collection period                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 | 10 years       |                |                 |               
|Number of claims seeking damages                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                | 10,000          |                | 66,400         |                 |               
|Number of Multiple-Plaintiff Actions                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     | 3              |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Unresolved actions, years outstanding                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | 5 years                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Cumulative percentage of actions settled                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                | 95.00%          |                |                |                 |               
|Litigation settlement expense                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   | 288,000,000 | 11,000,000 |   |   |                |   |   |         |                |                |   |                | 1,600,000,000   |                |                |                 |               
|Estimated minimum cost to resolve outstanding actions                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                | 100,000,000     |                |                |                 |               
|Damages awarded by the court                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                | 47,400,000      | 65,400,000    
|Treble damages amount awarded, under appeal                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                | 142,100,000     |               
|Number of actions                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                | 4 |             |            | 2 |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|Number of test cases                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                | 6 |                |                 |                |                |                 |               
|Number of additional test cases                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                | 3              |   |                |                 |                |                |                 |               
|Number of test cases with civil actions                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                | 6 |                |                 |                |                |                 |               
|Contract extension agreement period                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   | 24 months      |                 |                |                |                 |               
|Environmental complaint and penalty demand, environmental protection agency                                                                                                                                                                                                                                                                                                                                                                                                                                            | $ 216,000                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     |                |     |                |                |   |             |            |   |   |                |   |   |         |                |                |   |                |                 |                |                |                 |               
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|[1]
              In the first quarter of 2013, primarily includes an $80 million insurance recovery related to a certain litigation matter. In the first quarter of 2012, primarily relates to a $450 million charge in connection with an agreement-in-principle to settle a lawsuit by Brigham Young University related to Celebrex (which was ultimately settled for that amount), and charges for hormone-replacement therapy litigation. For additional information, see Note 12. Commitments and Contingencies. | [1]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | In the first quarter of 2013, primarily includes an $80 million insurance recovery related to a certain litigation matter. In the first quarter of 2012, primarily relates to a $450 million charge in connection with an agreement-in-principle to settle a lawsuit by Brigham Young University related to Celebrex (which was ultimately settled for that amount), and charges for hormone-replacement therapy litigation. For additional information, see Note 12. Commitments and Contingencies.
|[1]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | In the first quarter of 2013, primarily includes an $80 million insurance recovery related to a certain litigation matter. In the first quarter of 2012, primarily relates to a $450 million charge in connection with an agreement-in-principle to settle a lawsuit by Brigham Young University related to Celebrex (which was ultimately settled for that amount), and charges for hormone-replacement therapy litigation. For additional information, see Note 12. Commitments and Contingencies.

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