Inventories (Tables)

9 Months Ended

Sep. 30, 2021

Inventory Disclosure [Abstract]

Summary of Inventory

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,
	2021		2020
Raw materials & field materials	$	1,548	$	1,573
Work in progress		491		464
Finished goods		1,257		1,317
	$	3,296	$	3,354