XML 386 R218.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Other provisions, contingent liabilities and contingent assets (Details) - EUR (€) € in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Construction division [Member] |  |
Bank guarantees and other guarantees issued by insurance companies [Line Items] |  |
Gurantees amount | € 1,575 |
Bank guarantees and other guarantees issued by insurance companies [Member] |  |
Bank guarantees and other guarantees issued by insurance companies [Line Items] |  |
Gurantees amount | 8,260 | € 8,533
Bank guarantees and other guarantees issued by insurance companies [Member] | Construction division [Member] |  |
Bank guarantees and other guarantees issued by insurance companies [Line Items] |  |
Gurantees amount | 7,074 | 7,013
Bank guarantees and other guarantees issued by insurance companies [Member] | Toll roads division [Member] |  |
Bank guarantees and other guarantees issued by insurance companies [Line Items] |  |
Gurantees amount | 476 | 404
Bank guarantees and other guarantees issued by insurance companies [Member] | Airports division [Member] |  |
Bank guarantees and other guarantees issued by insurance companies [Line Items] |  |
Gurantees amount | 355 | 799
Bank guarantees and other guarantees issued by insurance companies [Member] | Energy and mobility infrastructures division [Member] |  |
Bank guarantees and other guarantees issued by insurance companies [Line Items] |  |
Gurantees amount | 199 | 66
Bank guarantees and other guarantees issued by insurance companies [Member] | Corporation division [Member] |  |
Bank guarantees and other guarantees issued by insurance companies [Line Items] |  |
Gurantees amount | € 157 | € 251

X
- Definition Bank guarantees and other guarantees issued by insurance companies + References No definition available. + Details
Name: | fer_BankGuaranteesAndOtherGuaranteesIssuedByInsuranceCompaniesLineItems
Namespace Prefix: | fer_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gurantees amount + References No definition available. + Details
Name: | fer_GuranteesAmount
Namespace Prefix: | fer_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | fer_TypeOfGuaranteesAxis=fer_BankGuaranteesAndOtherGuaranteesIssuedByInsuranceCompaniesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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