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Share-buy back (Details) - EUR (€) € in Millions |  | 6 Months Ended
--- | --- | ---
Feb. 10, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Disclosure of reserves within equity [line items] |  |  |  |
Number of shares acquired (in shares) |  |  | 15,552,684 |
Reourchase of shares | [1] |  | € 753 | € 648
Other reserves |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |
Reourchase of shares | [1] |  | € 753 | € 648
Top of range |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |
Share buyback program, authorized amount |  | € 3,000 |  |
[1] | Repurchase of shares reflects the cost of acquiring ordinary shares as part of the share buyback program announced on 10 February 2022.

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