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Marketable Securities, at Fair Value (Tables)
6 Months Ended
Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]  
Schedule of Available-for-sale Securities
The Company's nonqualified trusts hold available-for-sale securities for funding requirements of the Company's nonqualified pension plans (Note 9) as follows:
 
As of
June 30,
2015
 
As of
December 31,
2014
 
(In $ millions)
Amortized cost
29

 
32

Gross unrealized gain

 

Gross unrealized loss

 

Fair value
29

 
32