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Financial risk factors (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) country facility item customer Agency | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, entity's own equity instruments [line items] |  |  |  |
Cash, cash equivalents and restricted cash | $ 610 | $ 443 | $ 555 | $ 463
Undrawn borrowing facilities | $ 353 | $ 369 |  |
Ratio of net debt to Adjusted EBITDA | 4.9 | 5.5 |  |
Number of production facilities operated | facility | 23 |  |  |
Interest rate risk |  |  |  |
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, entity's own equity instruments [line items] |  |  |  |
Percentage of fixed rate borrowings | 92.00% | 100.00% |  |
Weighted average interest rate | 4.10% | 3.80% |  |
Percentage Of Reasonably Possible Increase In Risk Assumption | 1.00% |  |  |
Increase (Decrease) in equity due to increase in risk component. |  | $ 0 |  |
Currency risk |  |  |  |
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, entity's own equity instruments [line items] |  |  |  |
Number of production facilities operated | facility | 23 |  |  |
Number of countries business operates | country | 9 |  |  |
Number of continents business operates | item | 3 |  |  |
Percentage Of Reasonably Possible Increase In Risk Assumption | 1.00% |  |  |
Increase (Decrease) in equity due to increase in risk component. | $ (4) | $ (5) |  |
Credit risk |  |  |  |
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, entity's own equity instruments [line items] |  |  |  |
Credit rating agencies | Agency | 2 |  |  |
Number of customers accounting for largest percentage of total revenue. | customer | 10 |  |  |
Percentage of entity's revenue | 57.00% | 55.00% | 57.00% |

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- Definition Amount of cash, cash equivalents, and cash restricted to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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