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Investment in associated companies (Tables)
 6 Months Ended
Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]  
Equity Method Investments

We have the following investments that are either recorded using the equity method or at cost less impairment for the periods presented in these Consolidated Financial Statements:

 

(In $ millions)    June 30,
2018		      December 31,
2017		  

Seabras Sapura Participacoes

      76        63  

Seabras Sapura Holdco

      334        290  

Seadrill Partners—Total direct ownership interests

      914        857  

Seadrill Partners—Subordinated units

      120        97  

Seadrill Partners—Seadrill member interest and IDRs (1)

      64        64  

SeaMex Ltd

      107        102  
  

 

 

     

 

 

  

Total investment in associated companies

      1,615        1,473  
  

 

 

     

 

 

  

 

(1) 

The Seadrill Partners—Seadrill member interest and Incentive Distribution Rights (“IDRs”) are recorded at cost less impairment on the basis that they do not represent common stock interests and their fair value is not readily determinable.