Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2018

Derivative [Line Items]

Schedule of Changes in Fair Value of Derivatives

Information regarding changes in the fair value of the Company's derivative and non-derivative instruments is as follows:

	Gain (Loss) Recognized in Other Comprehensive Income (Loss)			Gain (Loss) Recognized in Earnings (Loss)
	Three Months Ended June 30,						Statement of Operations Classification
	2018	2017		2018	2017
	(In $ millions)
Designated as Cash Flow Hedges
Commodity swaps	6	2		1	1		Cost of sales
Foreign currency forwards	1	(1	)	—	—		Cost of sales
Total	7	1		1	1
Designated as Net Investment Hedges
Foreign currency denominated debt (Note 10)	70	(56	)	—	—		N/A
Total	70	(56	)	—	—
Not Designated as Hedges
Foreign currency forwards and swaps	—	—		21	(3	)	Foreign exchange gain (loss), net; Other income (expense), net
Total	—	—		21	(3	)

	Gain (Loss) Recognized in Other Comprehensive Income (Loss)			Gain (Loss) Recognized in Earnings (Loss)
	Six Months Ended June 30,						Statement of Operations Classification
	2018	2017		2018	2017
	(In $ millions)
Designated as Cash Flow Hedges
Commodity swaps	4	1		1	2		Cost of sales
Foreign currency forwards	1	(1	)	—	—		Cost of sales
Total	5	—		1	2
Designated as Net Investment Hedges
Foreign currency denominated debt (Note 10)	35	(69	)	—	—		N/A
Total	35	(69	)	—	—
Not Designated as Hedges
Foreign currency forwards and swaps	—	—		17	(2	)	Foreign exchange gain (loss), net; Other income (expense), net
Total	—	—		17	(2	)

Offsetting Assets

Information regarding the gross amounts of the Company's derivative instruments and the amounts offset in the unaudited consolidated balance sheets is as follows:

	As of June 30, 2018	As of December 31, 2017
	(In $ millions)
Derivative Assets
Gross amount recognized	24	13
Gross amount offset in the consolidated balance sheets	8	4
Net amount presented in the consolidated balance sheets	16	9
Gross amount not offset in the consolidated balance sheets	5	3
Net amount	11	6

Offsetting Liabilities

	As of June 30, 2018	As of December 31, 2017
	(In $ millions)
Derivative Liabilities
Gross amount recognized	14	7
Gross amount offset in the consolidated balance sheets	8	4
Net amount presented in the consolidated balance sheets	6	3
Gross amount not offset in the consolidated balance sheets	5	3
Net amount	1	—

Net Investment Hedging [Member]

Derivative [Line Items]

Schedule of Notional Amounts of Derivative and Nonderivative Instruments

The total notional amount of foreign currency denominated debt designated as a net investment hedge of net investments in foreign operations are as follows:

	As of June 30, 2018	As of December 31, 2017
	(In € millions)
Total	1,050	1,050

Not Designated as Hedging Instrument [Member]

Derivative [Line Items]

Schedule of Notional Amounts of Derivative and Nonderivative Instruments

Gross notional values of the foreign currency forwards and swaps not designated as hedges are as follows:

	As of June 30, 2018	As of December 31, 2017
	(In $ millions)
Total	876	740