| **Impairment and Restructuring Charges - (Details) $ in Millions**                 | 3 Months Ended | 6 Months Ended |
|------------------------------------------------------------------------------------|----------------|----------------|
||
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Combined Long-Lived and Intangible Asset Impairment Charges                        | $ 329          |           | $ 447 |   |
| Restructuring Costs                                                                | 797            | $ 76           | 839 | $ 649 |
| Restructuring Reserve, Severance                                                   | 66             |           | 66 |   |
| Restructuring reserve, contract termination                                        | 47             |           | 47 |   |
| Inventory Write-down and Disposal Cost Charge                                      |           |           | 621 |   |
| inventory disposal costs                                                           |           |           | 34 |   |
| Inventory Write Down-Cost of Sales                                                 |           |           | 205 | 37 |
| Inventory Write Down-Cost of Services                                              |           |           | 416 | 157 |
| Inventory write-down                                                               | 621            |           | 587 | 194 |
| Loss on firm purchase commitment                                                   |           |           | 51 |   |
| Workforce reductions                                                               |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Severance Costs                                                                    | $ 98           | 61             | 145 | 308 |
| Restructuring and Related Cost, Expected Number of Positions Eliminated | Employee | 3,000          |           |   |   |
| Contract terminations                                                              |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Other Restructuring Costs                                                          | $ 91           | (3)            |   | 83 |
| Payments for Restructuring                                                         | 54             |           |   |   |
| Impairment of buildings and improvements                                           |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Impairment of Long-Lived Assets Held-for-use                                       | 110            | 5              | 105 | 82 |
| Impairment of machinery and equipment                                              |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Impairment of Long-Lived Assets Held-for-use                                       | 498            | $ 13           |   | $ 176 |
| Machinery and Equipment                                                            |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Carrying Amount of Impaired Long-Lived Assets, Held-for-use                        | 754            |           | 754 |   |
| Impairment of Long-Lived Assets Held-for-use                                       | 240            |           |   |   |
| Customer Relationships and Trade Names [Member]                                    |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Carrying Amount of Intangible Assets, Finite-Lived                                 | 174            |           | 174 |   |
| Impairment of Intangible Assets, Finite-lived                                      | $ 89           |           |   |   |
| North America                                                                      |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Fair Value Assumptions, Weighted Average Cost of Capital                           | 10.00%         |           |   |   |
| Middle East [Member]                                                               |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Fair Value Assumptions, Weighted Average Cost of Capital                           | 14.00%         |           |   |   |
| Asia Pacific [Member]                                                              |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Fair Value Assumptions, Weighted Average Cost of Capital                           | 13.50%         |           |   |   |
| Latin America                                                                      |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Inventory Write-down and Disposal Cost Charge                                      |           |           | 88 |   |
| Latin America | Impairment of machinery and equipment                              |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Impairment of Long-Lived Assets Held-for-use                                       | $ 97           |           |   |   |
| North America                                                                      |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Inventory Write-down and Disposal Cost Charge                                      |           |           | 209 |   |
| North America | Impairment of machinery and equipment                              |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Impairment of Long-Lived Assets Held-for-use                                       | 203            |           |   |   |
| Europe/Africa/Russia Caspian                                                       |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Inventory Write-down and Disposal Cost Charge                                      |           |           | 152 |   |
| Europe/Africa/Russia Caspian | Impairment of machinery and equipment               |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Impairment of Long-Lived Assets Held-for-use                                       | 84             |           |   |   |
| Middle East/Asia Pacific                                                           |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Inventory Write-down and Disposal Cost Charge                                      |           |           | 125 |   |
| Middle East/Asia Pacific | Impairment of machinery and equipment                   |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Impairment of Long-Lived Assets Held-for-use                                       | 76             |           |   |   |
| Industrial Services                                                                |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Inventory Write-down and Disposal Cost Charge                                      |           |           | $ 47 |   |
| Industrial Services | Impairment of machinery and equipment                        |           |           |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                    |           |           |   |   |
| Impairment of Long-Lived Assets Held-for-use                                       | $ 38           |           |   |   |

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Combined Long-Lived and Intangible Asset Charges
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Fair Value Assumptions, Weighted Average Cost of Capital
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inventory disposal costs
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Loss on firm purchase commitment
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Restructuring Reserve, Severance
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Restructuring reserve, contract termination
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| - Definition
The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).
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| - Definition
Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.
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| - Definition
Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.
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The expected number of positions to be eliminated as a result of restructuring activities.
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.
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| - Definition
Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.
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