| **Segment Information - Schedule of Summarized Financial Information for CAPEX and DD&A (Details) - USD ($) $ in Millions** | 12 Months Ended |
|---------------------------------------------------------------------------------------------------------------------------------|-----------------|
||
| **Segment Reporting Information**                                                                                               |            |   |   |
| Capital Expenditures                                                                                                            | $ 332           | $ 965 | $ 1,791 |
| Depreciation and Amortization                                                                                                   | 1,166           | 1,742 | 1,814 |
| Operating Segments | North America                                                                                              |            |   |   |
| **Segment Reporting Information**                                                                                               |            |   |   |
| Capital Expenditures                                                                                                            | 75              | 228 | 465 |
| Depreciation and Amortization                                                                                                   | 356             | 714 | 842 |
| Operating Segments | Latin America                                                                                              |            |   |   |
| **Segment Reporting Information**                                                                                               |            |   |   |
| Capital Expenditures                                                                                                            | 35              | 103 | 171 |
| Depreciation and Amortization                                                                                                   | 160             | 213 | 220 |
| Operating Segments | Europe/ Africa/ Russia Caspian                                                                             |            |   |   |
| **Segment Reporting Information**                                                                                               |            |   |   |
| Capital Expenditures                                                                                                            | 122             | 175 | 373 |
| Depreciation and Amortization                                                                                                   | 268             | 378 | 351 |
| Operating Segments | Middle East/ Asia Pacific                                                                                  |            |   |   |
| **Segment Reporting Information**                                                                                               |            |   |   |
| Capital Expenditures                                                                                                            | 83              | 247 | 385 |
| Depreciation and Amortization                                                                                                   | 300             | 344 | 321 |
| Operating Segments | Industrial Services                                                                                        |            |   |   |
| **Segment Reporting Information**                                                                                               |            |   |   |
| Capital Expenditures                                                                                                            | 7               | 21 | 46 |
| Depreciation and Amortization                                                                                                   | 77              | 87 | 70 |
| Shared assets                                                                                                                   |            |   |   |
| **Segment Reporting Information**                                                                                               |            |   |   |
| Capital Expenditures                                                                                                            | 9               | 188 | 342 |
| Depreciation and Amortization                                                                                                   | 0               | 0 | 0 |
| Total Operations                                                                                                                |            |   |   |
| **Segment Reporting Information**                                                                                               |            |   |   |
| Capital Expenditures                                                                                                            | 331             | 962 | 1,782 |
| Depreciation and Amortization                                                                                                   | 1,161           | 1,736 | 1,804 |
| Corporate                                                                                                                       |            |   |   |
| **Segment Reporting Information**                                                                                               |            |   |   |
| Capital Expenditures                                                                                                            | 1               | 3 | 9 |
| Depreciation and Amortization                                                                                                   | $ 5             | $ 6 | $ 10 |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585
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| X                                                                                                                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
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.
+ References
No definition available.
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