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v3.25.0.1

Segment Reporting - Narrative (Details) | 12 Months Ended
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Dec. 31, 2024 year
Disclosure of operating segments [abstract] |
Number of ferrovial reportable segments | 4
Percentage of construction and toll roads revenue over total of group consolidated revenue | 10.00%

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- Definition Number of ferrovial reportable segments + References No definition available. + Details
Name: | fer_NumberOfFerrovialReportableSegments
Namespace Prefix: | fer_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Percentage of construction and toll roads revenue over total of group consolidated revenue + References No definition available. + Details
Name: | fer_PercentageOfConstructionAndTollRoadsRevenueOverTotalOfGroupConsolidatedRevenue
Namespace Prefix: | fer_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | ifrs-full_DisclosureOfOperatingSegmentsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration