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Other operating items (Tables)
 6 Months Ended
Jun. 30, 2021
Other Income and Expenses [Abstract]  
Other Operating Items
Other operating items consist of the following:
(In $ millions)Six months ended June 30, 2021Six months ended June 30, 2020
Impairment of long-lived assets (i)
(152)(1,230)
Gain on disposals (ii)
11 — 
Other operating income (iii)
3 8 
Total other operating items(138)(1,222)