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Company financial information - Parent only financial information (Details) € in Millions, $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2024 EUR (€) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 EUR (€) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 EUR (€) | Dec. 31, 2024 EUR (€) | Dec. 31, 2023 EUR (€) | Dec. 31, 2021 USD ($)
Disclosure of information about consolidated structured entities [line items] |  |  |  |  |  |  |  |  |
(Loss)/profit for the year | $ (3) | € (3) | $ (50) | € (46) | $ 237 | € 224 |  |  |
Equity | (136) |  | 106 |  | 455 |  | € (131) | € 96 | $ 286
Parent |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [line items] |  |  |  |  |  |  |  |  |
(Loss)/profit for the year | (427) | (393) | 53 | 49 | 218 | 206 |  |  |
Equity | 2,567 |  | 3,434 |  |  |  | 2,471 | 3,108 |
Subsidiaries |  |  |  |  |  |  |  |  |
Disclosure of information about consolidated structured entities [line items] |  |  |  |  |  |  |  |  |
Equity | (2,703) |  | (3,328) |  |  |  | € (2,602) | € (3,012) |
Additional Loss/Gain If Subsidiaries Had Been Accounted For Using The Equity Method | $ 424 | € 390 | $ (103) | € (95) | $ 19 | € 18 |  |  |

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