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Other non-current assets (Information) (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Other Noncurrent Assets [Abstract]    
Surplus in employees' defined benefit plans [1] $ 97 $ 115
Non-current inventories 65 149
Receivables from equity-accounted investees sale [2] 22 0
Derivative designated as a cash flow hedge 19 97
Investments in equity-accounted investees 3 26
Other 25 16
Total other non-current assets $ 231 $ 403
[1] See Note 16.
[2] See Note 8B(1).