Details of treasury and other financial risks - Net debt and interest rate sensitivity (Detail) - Interest rate risk [member] - EUR (€) € in Millions |
Dec. 31, 2022 |
Dec. 31, 2021 |
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Details of treasury and other financial risks [Line Items] | ||||||||||
Increase in the value of the fixed rate long term debt excluding forward contracts driven by 1% interest decrease | [1],[2],[3] | € (274) | € (297) | |||||||
Decrease in the value of the fixed rate long term debt excluding forward contracts driven by 1% interest increase | [1],[2],[3] | 274 | 298 | |||||||
Annualized net interest expense driven by 1% interest increase | [2],[4] | € 4 | € 20 | |||||||
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