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Current Other Liabilities
 3 Months Ended
Mar. 31, 2021
Other Liabilities, Current [Abstract]  
Current Other Liabilities Current Other Liabilities
As of
March 31,
2021		As of
December 31,
2020
(In $ millions)
Asset retirement obligations8 10 
Benefit obligations (Note 9)
27 27 
Customer rebates42 53 
Derivatives (Note 14)
52 87 
Environmental (Note 10)
12 11 
Insurance5 5 
Interest25 29 
Legal (Note 16)
15 107 
Operating leases36 36 
Restructuring (Note 12)
10 11 
Salaries and benefits98 121 
Sales and use tax/foreign withholding tax payable117 140 
Other42 43 
Total489 680