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Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Other Intangible Assets

Other intangible assets consisted of the following:

 

December 31, 2017

   Gross Cost      Accumulated
Amortization
     Net Cost  

Technologies & licences

     668        (566      102  

Contractual customer relationships

     5        (5      —    

Purchased & internally developed software

     440        (383      57  

Construction in progress

     50        —          50  

Other intangible assets

     65        (65      —    
  

 

 

    

 

 

    

 

 

 

Total

     1,228        (1,019      209  
  

 

 

    

 

 

    

 

 

 

 

December 31, 2016

   Gross Cost      Accumulated
Amortization
     Net Cost  

Technologies & licences

     618        (534      84  

Contractual customer relationships

     4        (4      —    

Purchased & internally developed software

     407        (347      60  

Construction in progress

     51        —          51  

Other intangible assets

     65        (65      —    
  

 

 

    

 

 

    

 

 

 

Total

     1,145        (950      195  
  

 

 

    

 

 

    

 

 

 

Estimated Amortization Expense of Existing Intangible Assets

The estimated amortization expense of the existing intangible assets for the following years is:

 

Year       

2018

     75  

2019

     58  

2020

     41  

2021

     22  

2022

     10  

Thereafter

     3  
  

 

 

 

Total

     209