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Share-based remuneration schemes - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 EUR (€)	Dec. 31, 2022 EUR (€)	Dec. 31, 2021 EUR (€)
Performance based share plan [Line Items]
Employee benefits expense	€ 1,760,000,000	€ 1,599,000,000	€ 1,446,000,000
Number of share options outstanding in share-based payment arrangement	1,729,752	1,953,016	1,782,127	2,054,531
Share based payments [Member]
Performance based share plan [Line Items]
Employee benefits expense	€ 13,000,000	€ 11,000,000	€ 8,000,000

X

- Definition

Performance based share plan

+ References

No definition available.

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- Definition

The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment.

+ References

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- Definition

The number of share options outstanding in a share-based payment arrangement.

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