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Interest expense and other financial income & expense - Interest expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Analysis of income and expense [abstract]      
Interest expense on financial debts $ (110) $ (95) $ (94)
Interest expense from discounting long-term liabilities (9) (12) (17)
Interest expense on lease liabilities (15) (13) (13)
Total interest expense $ (134) $ (120) $ (124)