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Noncurrent Other Liabilities
 9 Months Ended
Sep. 30, 2020
Other Liabilities, Noncurrent [Abstract]  
Noncurrent Other Liabilities Noncurrent Other Liabilities
As of
September 30,
2020		As of
December 31,
2019
(In $ millions)
Asset retirement obligations16 13 
Deferred proceeds45 43 
Deferred revenue (Note 18)
4 6 
Derivatives (Note 14)
8 50 
Environmental (Note 10)
55 49 
Insurance41 34 
Other28 28 
Total197 223