Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

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

	Fair Value Measurement						Balance Sheet Classification
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Total
	As of December 31,
	2020	2019	2020	2019	2020	2019
	(In $ millions)
Derivatives Designated as Cash Flow Hedges
Commodity swaps	—	—	2	—	2	—	Current Other assets
Commodity swaps	—	—	8	—	8	—	Noncurrent Other assets
Designated as Net Investment Hedges
Cross-currency swaps	—	—	13	13	13	13	Current Other assets
Derivatives Not Designated as Hedges
Foreign currency forwards and swaps	—	—	1	2	1	2	Current Other assets
Total assets	—	—	24	15	24	15
Derivatives Designated as Cash Flow Hedges
Commodity swaps	—	—	—	(4)	—	(4)	Current Other liabilities
Commodity swaps	—	—	(1)	(3)	(1)	(3)	Noncurrent Other liabilities
Interest rate swaps	—	—	(81)	—	(81)	—	Current Other liabilities
Interest rate swaps	—	—	—	(40)	—	(40)	Noncurrent Other liabilities
Derivatives Designated as Net Investment Hedges
Cross-currency swaps	—	—	(1)	(1)	(1)	(1)	Current Other liabilities
Cross-currency swaps	—	—	(33)	(7)	(33)	(7)	Noncurrent Other liabilities
Derivatives Not Designated as Hedges
Foreign currency forwards and swaps	—	—	(5)	(3)	(5)	(3)	Current Other liabilities
Total liabilities	—	—	(121)	(58)	(121)	(58)

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
	As of December 31,
	2020	2019	2020	2019	2020	2019	2020	2019
	(In $ millions)
Equity investments without readily determinable fair values	171	170	—	—	—	—	—	—
Insurance contracts in nonqualified trusts	30	35	31	35	—	—	31	35
Long-term debt, including current installments of long-term debt	3,671	3,455	3,644	3,456	201	143	3,845	3,599