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Provisions, income tax liabilities and other liabilities - Summary of Net Pre-tax Actuarial Loss (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Subclassifications of assets, liabilities and equities [abstract] |  |  |
Net pre-tax actuarial loss | € (2,259) | € (2,090) | € (2,738)

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- Definition Net pretax actuarial loss excluding associates and joint ventures recognized directly in equity. + References No definition available. + Details
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