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Inventories
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Inventories

5.  Inventories

Inventories, which are stated at the lower of average cost or net realizable value, consist of the following:

 

(Stated in millions)

 

 

 

 

 

 

 

 

 

 

2018

 

 

2017

 

Raw materials & field materials

$

1,803

 

 

$

1,846

 

Work in progress

 

519

 

 

 

503

 

Finished goods

 

1,688

 

 

 

1,697

 

 

$

4,010

 

 

$

4,046