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Interest expense and other financial income & expense (Tables)
 12 Months Ended
Dec. 31, 2022
Analysis of income and expense [abstract]  
Disclosure of components of interest expense
Interest expense
($ millions)202220212020
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)
Disclosure of components of other financial income & expense
Other financial income & expense
($ millions)202220212020
Interest income16 3 6 
Loss on extinguishment of financial debt(5)— — 
Other financial expense(12)(10)(9)
Monetary loss from hyperinflation accounting(16)(6)(4)
Currency result, net(58)(29)(22)
Total other financial income & expense(75)(42)(29)