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Inventories
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Inventories

4.   Inventories

A summary of inventories, which are stated at the lower of average cost or net realizable value, is as follows:  

 

(Stated in millions)

 

 

 

 

 

 

 

 

 

 

Sept. 30,

 

 

Dec. 31,

 

 

2020

 

 

2019

 

Raw materials & field materials

$

1,609

 

 

$

1,857

 

Work in progress

 

520

 

 

 

515

 

Finished goods

 

1,413

 

 

 

1,758

 

 

$

3,542

 

 

$

4,130