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Debt, cash and cash equivalents and lease liabilities - Summary of Market Value of Net Debt (Details) - EUR (€) € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of detailed information about borrowings [line items] |  |  |  |
Total debt | € 19,218 | € 20,250 | € 22,631 | € 24,568
Market value |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Total debt | 5,227 | 11,024 | 10,500 |
Value on redemption |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Total debt | 19,273 | 20,314 | 22,703 |
Total debt at redemption | € 6,492 | € 10,047 | € 8,862 |

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- Definition Redemption of debt instrument issued. + References No definition available. + Details
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