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Revenue (Tables)
3 Months Ended
Mar. 31, 2020
Revenue [Abstract]  
Disaggregation of Revenue The following table presents information on our disaggregated revenue.
Millions of dollarsThree Months Ended
March 31
Revenue by segment:20202019
Completion and Production$2,962  $3,662  
Drilling and Evaluation2,075  2,075  
Total revenue$5,037  $5,737  
Revenue by geographic region:
North America$2,460  $3,275  
Latin America516  587  
Europe/Africa/CIS831  748  
Middle East/Asia1,230  1,127  
Total revenue$5,037  $5,737