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Goodwill
 3 Months Ended
Mar. 31, 2014
Goodwill

7. Goodwill

The changes in the carrying amount of goodwill by reporting unit for the three months ended March 31, 2014 were as follows:

 

 

 

 

 

 

 

 

 

 

(Stated in millions)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reservoir

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Characterization

 

 

Drilling

 

 

Production

 

 

Total

 

Balance at December 31, 2013

$

3,737

 

 

$

8,315

 

 

$

2,654

 

 

$

14,706

 

Acquisitions

 

14

 

 

 

-

 

 

 

124

 

 

 

138

 

Reallocation

 

83

 

 

 

(83

)

 

 

-

 

 

 

-

 

Impact of changes in exchange rates and other

 

(5

)

 

 

(3

)

 

 

(4

)

 

 

(12

)

Balance at March 31, 2014

$

3,829

 

 

$

8,229

 

 

$

2,774

 

 

$

14,832