Income taxes - Disclosure of reconciliation between the income tax benefit expense (Detail) - EUR (€) € in Millions |
12 Months Ended | ||
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Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Income Tax [Abstract] | |||
| Profit / (loss) before tax | € (115) | € 82 | € (728) |
| Multiplied by theoretical tax rate | 30 | (22) | 198 |
| Effect of different foreign tax rates | (8) | 8 | (8) |
| Tax exempt Income | 2 | 5 | |
| Non-deductible expenditures | (15) | (6) | (2) |
| Taxes related to prior years | (8) | (7) | 6 |
| Effect of changes in tax rate | 0 | (21) | |
| Other changes in group tax provision not included in separate lines | 38 | (3) | |
| Impairment on investments in subsidiaries and other assets | 17 | 7 | (167) |
| Impact of deferred taxes | (24) | (8) | (193) |
| Foreign withholding taxes | (2) | (9) | (8) |
| Foreign exchange impact and other | (9) | (2) | 1 |
| Income tax expense per consolidated income statement | € 21 | € (55) | € (176) |
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- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to changes in the tax rate. [Refer: Accounting profit] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to expenses not deductible in determining taxable profit (tax loss). [Refer: Accounting profit] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to foreign tax rates. [Refer: Accounting profit] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition foreign exchange impact and other. No definition available.
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- Definition Income tax. No definition available.
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- Definition Tax effect of multiplied by theoretical tax rate. No definition available.
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- Definition Tax effect on foreign withholding taxes. No definition available.
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- Definition Tax effect on impact of deferred taxes. No definition available.
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- Definition Tax effect on impairment on investments in subsidiaries and other assets. No definition available.
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- Definition Tax effect on other changes in group tax provision. No definition available.
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- Definition Tax effect on tax exempt income. No definition available.
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- Definition Tax effect on taxes related to prior years. No definition available.
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