Earnings/(loss) per share - Disclosure of reconciliation of basic earnings per share (Details) - EUR (€) € / shares in Units, shares in Thousands, € in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Earnings per share [abstract]
Net profit/(loss) attributable to owners of the parent	€ (22,368)	€ 5,473	€ 18,596
Weighted average number of shares outstanding (in shares)	2,886,684	2,949,652	3,107,725
Basic earnings per share (in EUR per share)	€ (7.75)	€ 1.86	€ 5.98

The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).

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No definition available.

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The profit (loss) attributable to ordinary equity holders of the parent entity. [Refer: Profit (loss)]

+ References

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The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

+ References

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