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Derivative Financial Instruments and Risk Management Policies - Derivatives Policy (Details) € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 EUR (€) type_of_hedge | Dec. 31, 2023 EUR (€)
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items] |  |
Notional amount | € | € 84,933 | € 81,097
Decrease in outstanding derivatives (as a percent) | 4.70% |
Number of types of hedges | type_of_hedge | 3 |
Interest rate risk | Cash flow hedges |  |
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items] |  |
Average interest rate (as a percent) | 4.00% |
Interest rate risk | Cash flow hedges | Minimum |  |
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items] |  |
Average interest rate (as a percent) | 2.00% |
Interest rate risk | Cash flow hedges | Maximum |  |
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items] |  |
Average interest rate (as a percent) | 4.00% |

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- Definition The average rate of a hedging instrument. [Refer: Hedging instruments [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 23B -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_23B_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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