XML 354 R186.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Equity ownership interests (Details) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Toll roads division [Member] | Autop terrassa manresa SA [Member] |  |
Non group companies with significant ownership interests in subsidiaries [Line Items] |  |
Percentage non group interest | 23.72 | 23.72
Toll roads division [Member] | LBJ infrastructure group [Member] |  |
Non group companies with significant ownership interests in subsidiaries [Line Items] |  |
Percentage non group interest | 28.33%-17.07 | 28.33%-17.07
Toll roads division [Member] | NTE mobilitypartners holding [Member] |  |
Non group companies with significant ownership interests in subsidiaries [Line Items] |  |
Percentage non group interest | 37.03 | 37.03
Toll roads division [Member] | NTE mobility partners segments 3 LLC |  |
Non group companies with significant ownership interests in subsidiaries [Line Items] |  |
Percentage non group interest | 28.84%-17.49% | 28.84%-17.49
Toll roads division [Member] | I77 mobility partners [Member] |  |
Non group companies with significant ownership interests in subsidiaries [Line Items] |  |
Percentage non group interest | 24.58%-3.18% | 24.58%-3.18
Toll roads division [Member] | I66 mobility partners [Member] |  |
Non group companies with significant ownership interests in subsidiaries [Line Items] |  |
Percentage non group interest | 29.75%-14.55% | 29.75%-14.55
Construction division [Member] | Budimex S.A [Member] |  |
Non group companies with significant ownership interests in subsidiaries [Line Items] |  |
Percentage non group interest | 9.8%-6.3%-33.8% | 9.8%-6.3%-33.8
Airports division [Member] | Dalaman international airport [Member] |  |
Non group companies with significant ownership interests in subsidiaries [Line Items] |  |
Percentage non group interest | 40.00 | 40.00

X
- Definition Non group companies with significant ownership interests in subsidiaries + References No definition available. + Details
Name: | fer_NonGroupCompaniesWithSignificantOwnershipInterestsInSubsidiariesLineItems
Namespace Prefix: | fer_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage non group interest + References No definition available. + Details
Name: | fer_PercentageNonGroupInterest
Namespace Prefix: | fer_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_SegmentsAxis=fer_TollRoadsDivisionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_NoncontrollingInterestsEntitiesAxis=fer_AutopTerrassaManresaSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_NoncontrollingInterestsEntitiesAxis=fer_LBJInfrastructureGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_NoncontrollingInterestsEntitiesAxis=fer_NTEMobilitypartnersHoldingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_NoncontrollingInterestsEntitiesAxis=fer_NTEMobilityPartnersSegments3LLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_NoncontrollingInterestsEntitiesAxis=fer_I77MobilityPartnersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_NoncontrollingInterestsEntitiesAxis=fer_I66MobilityPartnersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=fer_ConstructionDivisionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_NoncontrollingInterestsEntitiesAxis=fer_BudimexS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=fer_AirportsDivisionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_NoncontrollingInterestsEntitiesAxis=fer_DalamanInternationalAirportMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |