Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis

	Fair Value Measurement
	Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)		Total		Balance Sheet Classification
	(In $ millions)
As of June 30, 2018
Derivatives Designated as Cash Flow Hedges
Commodity swaps	—	5		5		Current Other assets
Commodity swaps	—	2		2		Noncurrent Other assets
Derivatives Not Designated as Hedges
Foreign currency forwards and swaps	—	9		9		Current Other assets
Total assets	—	16		16
Derivatives Not Designated as Hedges
Foreign currency forwards and swaps	—	(6	)	(6	)	Current Other liabilities
Total liabilities	—	(6	)	(6	)
As of December 31, 2017
Derivatives Designated as Cash Flow Hedges
Commodity swaps	—	2		2		Current Other assets
Commodity swaps	—	2		2		Noncurrent Other assets
Derivatives Not Designated as Hedges
Foreign currency forwards and swaps	—	5		5		Current Other assets
Total assets	—	9		9
Derivatives Not Designated as Hedges
Foreign currency forwards and swaps	—	(3	)	(3	)	Current Other liabilities
Total liabilities	—	(3	)	(3	)

Schedule of Carrying Values and Fair Values of Financial Instruments

Carrying values and fair values of financial instruments that are not carried at fair value are as follows:

		Fair Value Measurement
	Carrying Amount	Significant Other Observable Inputs (Level 2)	Unobservable Inputs (Level 3)	Total
	(In $ millions)
As of June 30, 2018
Cost investments	165	—	—	—
Insurance contracts in nonqualified trusts	42	42	—	42
Long-term debt, including current installments of long-term debt	3,313	3,198	182	3,380
As of December 31, 2017
Cost investments	159	—	—	—
Insurance contracts in nonqualified trusts	42	42	—	42
Long-term debt, including current installments of long-term debt	3,398	3,299	208	3,507