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Other long-term payables- Narrative (Details) - EUR (€) € in Millions	Dec. 31, 2024	Dec. 31, 2023
Other long term payables [Line Items]
Other non-current financial liabilities	€ 1,279	€ 1,310
Central Government loans for various infrastructure project concessions [Member] | Toll roads division [Member] | Autovía de aragón SA [Member]
Other long term payables [Line Items]
Other non-current financial liabilities	57	53
Long-term loans from associates [Member] | Toll roads division [Member]
Other long term payables [Line Items]
Other non-current financial liabilities	4	21
The debt of Dalaman International Airport [Member] | Airports division [Member]
Other long term payables [Line Items]
Other non-current financial liabilities	247	276
Concession agreement for the I-66 toll [Member] | Toll roads division [Member]
Other long term payables [Line Items]
Other non-current financial liabilities	€ 915	€ 865

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- Definition

Other long term payables

+ References

No definition available.

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- Definition

The amount of non-current payables that the entity does not separately disclose in the same statement or note.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2024-01-01
-Paragraph 55
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-URIDate 2024-03-27

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