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Revenue (Tables)
3 Months Ended
Mar. 31, 2018
Revenue [Abstract]  
Disaggregation of Revenue
The following table presents information on our disaggregated revenue.

REVENUE:
Three Months Ended
March 31
Millions of dollars
2018
2017
Completion and Production
$
3,807

$
2,604

Drilling and Evaluation
1,933

1,675

Total revenue
$
5,740

$
4,279

 
 
 
By geographic region:
 
 
North America
$
3,517

$
2,231

Latin America
457

463

Europe/Africa/CIS
716

604

Middle East/Asia
1,050

981

Total revenue
$
5,740

$
4,279