Marketable Securities, at Fair Value

12 Months Ended

Dec. 31, 2017

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 15) as follows:

	As of December 31,
	2017	2016
	(In $ millions)
Amortized cost	32	30
Gross unrealized gain	—	—
Gross unrealized loss	—	—
Fair value	32	30