| **Valuation and Qualifying Accounts - (Details) (USD $)In Millions, unless otherwise specified**                                                                                                                                                                                                                                                     | 12 Months Ended |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------|
||
| **Movement in Valuation Allowances and Reserves [Roll Forward]**                                                                                                                                                                                                                                                                                     |            |  |   |  |   |  |
| Provision for doubtful accounts                                                                                                                                                                                                                                                                                                                      | $ 75            |  | $ 100 |  | $ 84 |  |
| Other Changes (2) (3)                                                                                                                                                                                                                                                                                                                                | 30              |  |   |  |   |  |
| Reserve for doubtful accounts receivable                                                                                                                                                                                                                                                                                                             |            |  |   |  |   |  |
| **Movement in Valuation Allowances and Reserves [Roll Forward]**                                                                                                                                                                                                                                                                                     |            |  |   |  |   |  |
| Beginning balance                                                                                                                                                                                                                                                                                                                                    | 308             |  | 229 |  | 162 |  |
| Provision for doubtful accounts                                                                                                                                                                                                                                                                                                                      | 75              |  | 100 |  | 84 |  |
| Write-offs (1)                                                                                                                                                                                                                                                                                                                                       | (115)           | [1] | (22) | [1] | (18) | [1] |
| Other Changes (2) (3)                                                                                                                                                                                                                                                                                                                                | (30)            | [2],[3] | 1 | [2] | 1 | [2] |
| Ending balance                                                                                                                                                                                                                                                                                                                                       | 238             |  | 308 |  | 229 |  |
| Reserve for inventories                                                                                                                                                                                                                                                                                                                              |            |  |   |  |   |  |
| **Movement in Valuation Allowances and Reserves [Roll Forward]**                                                                                                                                                                                                                                                                                     |            |  |   |  |   |  |
| Beginning balance                                                                                                                                                                                                                                                                                                                                    | 346             |  | 304 |  | 322 |  |
| Charged to Cost and Expenses                                                                                                                                                                                                                                                                                                                         | 85              |  | 68 |  | 16 |  |
| Write-offs (1)                                                                                                                                                                                                                                                                                                                                       | (46)            | [1] | (28) | [1] | (36) | [1] |
| Other Changes (2) (3)                                                                                                                                                                                                                                                                                                                                | (3)             | [2] | 2 | [2] | 2 | [2] |
| Ending balance                                                                                                                                                                                                                                                                                                                                       | $ 382           |  | $ 346 |  | $ 304 |  |
|                                                                                                                                                                                                                                                                                                                                                      |
| [1]Represents the elimination of accounts receivable and inventory deemed uncollectible or worthless.[2]Represents transfers, currency translation adjustments and divestitures.[3]For the year ended December 31, 2013, the reserve for doubtful accounts receivable includes a $30 million reduction due to the currency devaluation in Venezuela. |

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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to accounts other than costs and expenses in a given period.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.
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