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Goodwill
 9 Months Ended
Sep. 30, 2019
Goodwill And Intangible Assets Disclosure [Abstract]  
Goodwill

7.   Goodwill

A summary of goodwill follows:

 

(Stated in millions)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reservoir

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Characterization

 

 

Drilling

 

 

Production

 

 

Cameron

 

 

Total

 

Balance at December 31, 2018

$

4,703

 

 

$

10,111

 

 

$

4,678

 

 

$

5,439

 

 

$

24,931

 

Impairment

 

(97

)

 

 

(3,025

)

 

 

(705

)

 

 

(5,001

)

 

 

(8,828

)

Impact of changes in exchange rates and other

 

7

 

 

 

3

 

 

 

(1

)

 

 

-

 

 

 

9

 

Balance at September 30, 2019

$

4,613

 

 

$

7,089

 

 

$

3,972

 

 

$

438

 

 

$

16,112