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Marketable Securities, at Fair Value
 6 Months Ended
Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities, at Fair Value
Marketable Securities, at Fair Value
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,
2016
 
As of
December 31,
2015
 
(In $ millions)
Amortized cost
35

 
30

Gross unrealized gain
—

 
—

Gross unrealized loss
—

 
—

Fair value
35

 
30