XML 202 R183.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Derivative Financial Instruments and Risk Management Policies - Share Risk (Details) |  | 12 Months Ended
--- | --- | ---
Apr. 23, 2021 cycle | Dec. 31, 2024 model | Dec. 31, 2021 model
Performance Share Plan 2021-2025 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Award vesting period | 5 years |  | 5 years
Number of independent cycles | 3 |  | 3
Period in force of each cycle | 3 years |  | 3 years
Long term incentive plan senior executive officers |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Award vesting period |  | 5 years |
Number of independent cycles |  | 3 |
Period in force of each cycle |  | 3 years |

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement By Share-based Payment Award, Number Of Independent Phases + References No definition available. + Details
Name: | tef_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfIndependentPhases
Namespace Prefix: | tef_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Period in Force of Each Phases + References No definition available. + Details
Name: | tef_ShareBasedCompensationArrangementByShareBasedPaymentAwardPeriodInForceOfEachPhases
Namespace Prefix: | tef_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period1 + References No definition available. + Details
Name: | tef_SharebasedCompensationArrangementbySharebasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | tef_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tef_PerformanceSharePlan20212025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tef_LongTermIncentivePlanSeniorExecutiveOfficersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |