Income Taxes - Items where no Deferred Tax Assets were recognized (Detail) - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Income Taxes [Abstract] | ||||
| Deductible temporary differences | [1] | € (29) | € (39) | |
| Not expiring | [1] | (4,934) | (4,945) | |
| Expiring in subsequent period | [1] | (20) | (2) | |
| Expiring after subsequent period | [1] | (36) | (77) | |
| Unused tax losses | [1] | (4,990) | (5,024) | |
| Expiring after subsequent period | [1] | 0 | 0 | |
| Unused tax credits | [1] | € (1) | € (1) | |
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- Definition Expiring after subsequent period, Unused tax credits No definition available.
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- Definition Expiring after subsequent period, Items where no Deferred Tax Assets were recognized, tax losses No definition available.
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- Definition Expiring in subsequent period, Items where no Deferred Tax Assets were recognized, tax losses No definition available.
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- Definition Income Taxes [Abstract] No definition available.
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- Definition Not expiring, Items where no Deferred Tax Assets were recognized, tax losses No definition available.
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- Definition The amount of deductible temporary differences for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of unused tax credits for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax credits [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of unused tax losses for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax losses [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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