| **Tax Matters - Deferred Taxes (Detail) (USD $)In Millions, unless otherwise specified**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | Dec. 31, 2012 | Dec. 31, 2011 |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|---------------|
| **Income Taxes [Line Items]**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |          |               |   |  |
| Prepaid/deferred items - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | $ 1,817       |               | $ 1,659 |  |
| Inventories - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | 330           |               | 324 |  |
| Intangibles - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | 1,649         |               | 1,713 |  |
| Property, plant and equipment - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | 508           |               | 226 |  |
| Employee benefits - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | 5,042         |               | 4,280 |  |
| Restructurings and other charges - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | 784           |               | 553 |  |
| Legal and product liability reserves - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | 1,888         |               | 1,812 |  |
| Net operating loss/credit carryforwards - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | 3,439         |               | 4,381 |  |
| State and local tax adjustments - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | 385           |               | 476 |  |
| All other - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | 1,259         |               | 1,105 |  |
| Subtotal - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | 17,101        |               | 16,529 |  |
| Valuation allowance                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | (1,102)       |               | (1,201) |  |
| Total deferred taxes - Deferred tax assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | 15,999        |               | 15,328 |  |
| Prepaid/deferred items - Deferred tax liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | (119)         |               | (211) |  |
| Inventories - Deferred tax liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | (198)         |               | (52) |  |
| Intangibles - Deferred tax liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | (14,187)      |               | (15,301) |  |
| Property, plant and equipment - Deferred tax liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | (1,485)       |               | (1,311) |  |
| Employee benefits - Deferred tax liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | (391)         |               | (524) |  |
| Restructurings and other charges - Deferred tax liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | (334)         |               | (95) |  |
| Unremitted earnings - Deferred tax liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | (16,042)      | [1]           | (11,699) | [1] |
| All other - Deferred tax liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | (504)         |               | (121) |  |
| Subtotal - Deferred tax liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | (33,260)      |               | (29,314) |  |
| Total deferred taxes - Deferred tax liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | (33,260)      |               | (29,314) |  |
| Net deferred tax liability                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | $ (17,261)    | [2],[3]       | $ (13,986) | [2],[3] |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| [1]See Note 5A. Tax Matters: Taxes on Income from Continuing Operations and Note 2B. Acquisitions, Divestitures, Collaborative Arrangements and Equity-Method Investments: Divestitures.[2]In 2012, included in Taxes and other current assets ($3.6 billion), Taxes and other noncurrent assets ($700 million), Other current liabilities ($11 million) and Noncurrent deferred tax liabilities ($21.6 billion). In 2011, included in Taxes and other current assets ($4.0 billion), Taxes and other noncurrent assets ($1.2 billion), Other current liabilities ($350 million) and Noncurrent deferred tax liabilities ($18.9 billion).[3]2012 v. 2011––The net deferred tax liability position increased, reflecting an increase in noncurrent deferred tax liabilities related to unremitted earnings, as well as a decrease in deferred tax assets related to net operating loss and credit carryforwards, partially offset by the reduction in noncurrent deferred tax liabilities resulting from the amortization of identifiable intangible assets and the increase in deferred tax assets related to employee benefits. |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cumulative amount of the estimated future tax effects attributable to intangible related items which can only be realized if sufficient taxable income is generated in future periods to enable the deductions to be taken.
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| - Definition
The sum of the tax effects as of the balance sheet date of the amount of the estimated future tax deductions arising from all employee compensation and benefits costs, which can only be deducted for tax purposes when the actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.
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| - Definition
The sum of the tax effects as of the balance sheet date of the amount of excesses of tax deductions over gross income in a year which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset. Also, the tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance.
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| - Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions attributable to state and local tax adjustment related items which can only be realized if sufficient taxable income is generated in future periods to enable the deduction to be taken.
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| - Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from estimates of legal and product liability reserves, which can only be deducted for tax purposes when actual losses are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.
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| - Definition
The amount as of the balance sheet date of the estimated future tax deductions arising from estimates of restructuring reserve costs and other charges, which can only be deducted for tax purposes when restructuring charges and other charges are actually incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.
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| - Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions attributable to prepaid and related deferred items which can only be realized if sufficient taxable income is generated in future periods to enable the deduction to be taken.
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| - Definition
The sum of all amount tax effects arising from temporary differences as of the balance sheet date differences.
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| - Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax effects attributable to inventory related items computed in accordance with generally accepted accounting principles.
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| - Definition
The sum of the tax effects as of the balance sheet date of the amount of the estimated future tax effects arising from all employee compensation and benefits costs.
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| - Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax effects attributable to prepaid and related deferred items computed in accordance with generally accepted accounting principles.
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| - Definition
The amount as of the balance sheet date of the estimated future tax effects arising from estimates of restructuring reserve costs and other charges.
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No definition available.
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| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.
+ References
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| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.
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| - Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.
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| - Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed.
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| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.
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| - Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.
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| - Definition
Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances.
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| - Definition
Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of deferred tax liability attributable to taxable temporary differences not separately disclosed.
+ References
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| - Definition
Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiaries and other recognized entities not within the country of domicile of the entity.
+ References
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