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Debt, cash and cash equivalents and lease liabilities - Summary of Interest Rate Fluctuations of Debt Net of Cash and Cash Equivalents (Details) - Change in Euro and US dollar short-term interest rates € in Millions | 12 Months Ended
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Dec. 31, 2023 EUR (€)
+100 bp |
Disclosure of Interest Rate of Debt Net of Cash and Cash Equivalent [Line Items] |
Impact on pre-tax net income | € 48
Impact on pre-tax income/(expense) recognized directly in equity | 0
+25 bp |
Disclosure of Interest Rate of Debt Net of Cash and Cash Equivalent [Line Items] |
Impact on pre-tax net income | 12
Impact on pre-tax income/(expense) recognized directly in equity | 0
-25 bp |
Disclosure of Interest Rate of Debt Net of Cash and Cash Equivalent [Line Items] |
Impact on pre-tax net income | (12)
Impact on pre-tax income/(expense) recognized directly in equity | 0
-100 bp |
Disclosure of Interest Rate of Debt Net of Cash and Cash Equivalent [Line Items] |
Impact on pre-tax net income | (48)
Impact on pre-tax income/(expense) recognized directly in equity | € 0

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