XML 367 R199.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Cash and cash equivalents and borrowings exinfraestructure project (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
GrossInfrastructure and ex infrastructure project borrowings [Line Items] |  |
Borrowings | € (11,288) | € (11,378)
Exinfrastructure project [Member] |  |
GrossInfrastructure and ex infrastructure project borrowings [Line Items] |  |
Borrowings | (2,886) | (3,463)
Increase decrease with impact on cash flow borrowings | (569) |
Foreign exchange effect borrowings | 4 |
Impact of consolidation scope changes and other borrowings | 0 |
Capitalized accrued interest borrowings | (11) |
Infrastructure project [Member] |  |
GrossInfrastructure and ex infrastructure project borrowings [Line Items] |  |
Borrowings | (8,400) | (7,915)
Increase decrease with impact on cash flow borrowings | 70 |
Foreign exchange effect borrowings |  | 472
Impact of consolidation scope changes and other borrowings | (22) |
Capitalized accrued interest borrowings | (36) |
Bank borrowings project bonds [Member] | Exinfrastructure project [Member] |  |
GrossInfrastructure and ex infrastructure project borrowings [Line Items] |  |
Borrowings | (2,888) | (3,449)
Increase decrease with impact on cash flow borrowings | (569) |
Foreign exchange effect borrowings | 19 |
Impact of consolidation scope changes and other borrowings | 0 |
Capitalized accrued interest borrowings | (11) |
Cross currency swaps [Member] | Exinfrastructure project [Member] |  |
GrossInfrastructure and ex infrastructure project borrowings [Line Items] |  |
Borrowings | (2) | € (13)
Increase decrease with impact on cash flow borrowings | 0 |
Foreign exchange effect borrowings | (16) |
Impact of consolidation scope changes and other borrowings | 0 |
Capitalized accrued interest borrowings |  |

X
- Definition Capitalized accrued interest borrowings + References No definition available. + Details
Name: | fer_CapitalizedAccruedInterestBorrowings
Namespace Prefix: | fer_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Foreign exchange effect borrowings + References No definition available. + Details
Name: | fer_ForeignExchangeEffectBorrowings
Namespace Prefix: | fer_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition GrossInfrastructure and ex infrastructure project borrowings + References No definition available. + Details
Name: | fer_GrossInfrastructureAndExInfrastructureProjectBorrowingsLineItems
Namespace Prefix: | fer_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Impact of consolidation scope changes and other borrowings + References No definition available. + Details
Name: | fer_ImpactOfConsolidationScopeChangesAndOtherBorrowings
Namespace Prefix: | fer_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase decrease with impact on cash flow borrowings + References No definition available. + Details
Name: | fer_IncreaseDecreaseWithImpactOnCashFlowBorrowings
Namespace Prefix: | fer_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of outstanding funds that the entity is obligated to repay. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_Borrowings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | fer_InfrastructureAndExInfrastructureProjectAxis=fer_ExinfrastructureProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_InfrastructureAndExInfrastructureProjectAxis=fer_InfrastructureProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_GrossBorrowingPositionExProjectCompaniesAxis=fer_BankBorrowingsProjectBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fer_GrossBorrowingPositionExProjectCompaniesAxis=fer_CrossCurrencySwapsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |