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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue [Abstract] |
Disaggregation of Revenue | The following table presents information on our disaggregated revenue.
| Year Ended December 31
Millions of dollars | 2018 | 2017 | 2016
Revenue by division: |  |  |
Completion and Production | $ | 15,973 |  | $ | 13,077 |  | $ | 8,882 |
Drilling and Evaluation | 8,022 |  | 7,543 |  | 7,005 |
Total revenue | $ | 23,995 |  | $ | 20,620 |  | $ | 15,887 |
Revenue by geographic region: |  |  |
North America | $ | 14,431 |  | $ | 11,564 |  | $ | 6,770 |
Latin America | 2,065 |  | 2,116 |  | 1,860 |
Europe/Africa/CIS | 2,945 |  | 2,781 |  | 2,993 |
Middle East/Asia | 4,554 |  | 4,159 |  | 4,264 |
Total revenue | $ | 23,995 |  | $ | 20,620 |  | $ | 15,887 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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