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- Definition

Carrying amount acquisition

+ References

No definition available.

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- Definition

Disclosure of detail information about goodwill

+ References

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- Definition

Percentage of the adquisition

+ References

No definition available.

+ Details

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- Definition

Percentage of the goodwill impairment test over its carring amount

+ References

No definition available.

+ Details

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- Definition

Percentage of the share price over its carring amount impairment test

+ References

No definition available.

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- Definition

Rate before taxes used to discount the flows goodwill impairment test

+ References

No definition available.

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- Definition

Rate used to discount the flows goodwill impairment test

+ References

No definition available.

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- Definition

The percentage of a reasonably possible decrease in an unobservable input used in fair value measurement of the entity's own equity instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 13
-IssueDate 2024-01-01
-Paragraph 93
-Subparagraph h
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_h_ii&doctype=Standard
-URIDate 2024-03-27

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Goodwill and acquisitions - Narrative (Details) - EUR (€)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2026	Dec. 31, 2023	Dec. 31, 2021
Disclosure of detail information about goodwill [Line Items]
Percentage of reasonably possible decrease in unobservable input, entity's own equity instruments		5.00%
Construction division [Member] \| Budimex S.A [Member]
Disclosure of detail information about goodwill [Line Items]
Percentage of the goodwill impairment test over its carring amount			1086.00%
Carring amount of the investment	€ 8.91		€ 156,000,000
Carrying amount acquisition	€ 141,000,000
Construction division [Member] \| Webber [Member]
Disclosure of detail information about goodwill [Line Items]
Percentage of the goodwill impairment test over its carring amount	245.00%		174.00%
Carring amount of the investment	€ 395,000,000		€ 362,000,000
Percentage of the adquisition	8.60%
Rate before taxes used to discount the flows goodwill impairment test	9.90%
Toll roads division [Member] \| I66 Express mobility partners hold LLC [Member]
Disclosure of detail information about goodwill [Line Items]
Percentage of the goodwill impairment test over its carring amount	13.00%		20.00%	5.704%
Carring amount of the investment	€ 2,281,000,000		€ 1,971,000,000
Rate before taxes used to discount the flows goodwill impairment test	9.50%
Rate used to discount the flows goodwill impairment test	8.50%
Energy and mobility infrastructures division [Member] \| Power transmission services chile [Member]
Disclosure of detail information about goodwill [Line Items]
Percentage of the goodwill impairment test over its carring amount			79.00%
Carring amount of the investment	€ 38,000,000		€ 34,000,000
Rate before taxes used to discount the flows goodwill impairment test	10.10%
Rate used to discount the flows goodwill impairment test	9.90%
Percentage of the share price over its carring amount impairment test	57.00%
Energy and mobility infrastructures division [Member] \| Mining services Chile
Disclosure of detail information about goodwill [Line Items]
Percentage of the goodwill impairment test over its carring amount	141.00%
Carring amount of the investment	€ 29,000,000		€ 16,000,000
Percentage of the adquisition			12.00%
Rate before taxes used to discount the flows goodwill impairment test	18.60%
Rate used to discount the flows goodwill impairment test	14.70%
Airports division [Member] \| Dalaman international airport [Member]
Disclosure of detail information about goodwill [Line Items]
Percentage of the goodwill impairment test over its carring amount	24.00%		26.00%
Carring amount of the investment	€ 180,000,000		€ 146,000,000
Rate before taxes used to discount the flows goodwill impairment test	12.70%
Rate used to discount the flows goodwill impairment test	10.20%