| **Impairment and Restructuring Charges - Schedule of Restructuring Charges (Details) $ in Millions** | 12 Months Ended |
|------------------------------------------------------------------------------------------------------|-----------------|
||
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | $ 1,160         | $ 1,320 |   |
| Restructuring costs                                                                                  | 1,168           | 830 |   |
| Combined long-lived and intangible asset impairment charges                                          | 567             | 1,160 |   |
| Inventory disposal costs                                                                             | 34              |   |   |
| Inventory write-down and disposal cost                                                               | 617             |   |   |
| Inventory write-down                                                                                 | 583             | 194 | $ 0 |
| Workforce reductions                                                                                 |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Severance costs                                                                                      | $ 272           | 436 |   |
| Number of positions eliminated | Employee                                                            | 26,200          |   |   |
| Benefit plan curtailment gains                                                                       | $ 9             | 10 |   |
| Restructuring payments                                                                               | 289             | 365 |   |
| Contract terminations                                                                                |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Other restructuring costs                                                                            | 192             | 121 |   |
| Restructuring payments                                                                               | 130             | 81 |   |
| Prepayments write-off                                                                                |            | 14 |   |
| Impairment of buildings and improvements                                                             |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 214             | 82 |   |
| Impairment of machinery and equipment                                                                |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 490             | 191 |   |
| Customer Relationships and Trade Names                                                               |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Carrying amount of intangible finite-lived assets                                                    |            | 178 |   |
| Machinery, Equipment and Other                                                                       |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 453             | 1,050 |   |
| Carrying amount of impaired long-live assets                                                         | 1,337           | 1,640 |   |
| Europe/ Africa/ Russia Caspian                                                                       |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Combined long-lived and intangible asset impairment charges                                          | 128             |   |   |
| Inventory write-down and disposal cost                                                               | 143             |   |   |
| Europe/ Africa/ Russia Caspian | Impairment of buildings and improvements                            |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 41              |   |   |
| Europe/ Africa/ Russia Caspian | Impairment of machinery and equipment                               |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 88              |   |   |
| Europe/ Africa/ Russia Caspian | Machinery, Equipment and Other                                      |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 124             |   |   |
| Carrying amount of impaired long-live assets                                                         | 222             |   |   |
| Industrial Services                                                                                  |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Combined long-lived and intangible asset impairment charges                                          | 16              |   |   |
| Inventory write-down and disposal cost                                                               | 43              |   |   |
| Industrial Services | Impairment of buildings and improvements                                       |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 1               |   |   |
| Industrial Services | Impairment of machinery and equipment                                          |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 34              |   |   |
| Industrial Services | Machinery, Equipment and Other                                                 |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 13              |   |   |
| Carrying amount of impaired long-live assets                                                         | 196             |   |   |
| Middle East/ Asia Pacific                                                                            |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Combined long-lived and intangible asset impairment charges                                          | 183             |   |   |
| Inventory write-down and disposal cost                                                               | 117             |   |   |
| Middle East/ Asia Pacific | Impairment of buildings and improvements                                 |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 9               |   |   |
| Middle East/ Asia Pacific | Impairment of machinery and equipment                                    |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 85              |   |   |
| Middle East/ Asia Pacific | Machinery, Equipment and Other                                           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Impairment of property, plant, and equipment                                                         | 166             |   |   |
| Carrying amount of impaired long-live assets                                                         | 433             |   |   |
| Cost of Sales                                                                                        |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Inventory write-down and disposal cost                                                               | 204             |   |   |
| Inventory write-down                                                                                 |            | 37 |   |
| Cost of Services                                                                                     |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                      |            |   |   |
| Inventory write-down and disposal cost                                                               | $ 413           |   |   |
| Inventory write-down                                                                                 |            | $ 157 |   |

| X                                                                                                                                                                                                                                                                                                |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying Amount of Impaired Long-Lived Assets, Held-for-use
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Carrying Amount of Intangible Assets, Finite-Lived
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Combined Long-Lived and Intangible Asset Charges
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Inventory Write-down and Disposal Cost Charge
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inventory disposal costs
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Prepayments Write-Off
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| - Definition
The amount of net gain (loss) recognized in net periodic benefit cost as a result of an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.
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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
Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.
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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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| - Definition
The number of positions eliminated as of the balance sheet date since inception of the restructuring plan(s).
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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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| - Definition
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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