XML 189 R173.htm IDEA: XBRL DOCUMENT
v3.22.4

Derivative Financial Instruments and Risk Management Policies - Evolution of Derivative Instruments (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Derivative Assets/ Liabilities, Net [Roll Forward] |  |
Gain (loss) on derivative | € 1,012 | € 1,573
Currency swaps |  |
Derivative Assets/ Liabilities, Net [Roll Forward] |  |
Gain (loss) on derivative | 638 | 188
Derivative instruments |  |
Derivative Assets/ Liabilities, Net [Roll Forward] |  |
Opening balance of assets/(liabilities) | 1,573 | 13
Financing payments | 715 | 34
Financing proceeds | (89) | 89
Interest (proceeds)/payments | 283 | (91)
Other (proceeds)/payments | (17) | (31)
Fair value adjustments through other comprehensive income | 1,031 | 1,733
Movements with counterparty in the income statement | (2,649) | (538)
Translation differences | 169 | 393
Other movements | (4) | (29)
Closing balance of assets/(liabilities) | 1,012 | 1,573
Increase in financial assets | € 561 | € (1,560)

X
- Definition The gains (losses) resulting from change in the fair value of derivatives recognised in profit or loss. [Refer: Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_85&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase (decrease) in financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_35H&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 35I -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_35I&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_IncreaseDecreaseInFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Derivative Asset (Liability), Net + References No definition available. + Details
Name: | tef_DerivativeAssetLiabilityNet
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Derivative Assets/ Liabilities, Net [Roll Forward] + References No definition available. + Details
Name: | tef_DerivativeAssetsLiabilitiesNetRollForward
Namespace Prefix: | tef_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair Value Adjustments Through Other Comprehensive Income of Financial Instruments + References No definition available. + Details
Name: | tef_FairValueAdjustmentsThroughOtherComprehensiveIncomeofFinancialInstruments
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing Payments of Financial Instruments + References No definition available. + Details
Name: | tef_FinancingPaymentsofFinancialInstruments
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing Proceeds of Financial Instruments + References No definition available. + Details
Name: | tef_FinancingProceedsofFinancialInstruments
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase (decrease) through movements with counterparty, financial instruments + References No definition available. + Details
Name: | tef_Increasedecreasethroughmovementswithcounterpartyfinancialinstruments
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase (decrease) through other movements, financial instruments + References No definition available. + Details
Name: | tef_Increasedecreasethroughothermovementsfinancialinstruments
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase (decrease) through translation differences, financial instruments + References No definition available. + Details
Name: | tef_Increasedecreasethroughtranslationdifferencesfinancialinstruments
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Interest (Proceeds) / Payments of Financial Instruments + References No definition available. + Details
Name: | tef_InterestProceedsPaymentsofFinancialInstruments
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other (Proceeds) / Payments of Financial Instruments + References No definition available. + Details
Name: | tef_OtherProceedsPaymentsofFinancialInstruments
Namespace Prefix: | tef_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfHedgesAxis=ifrs-full_CurrencySwapContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_DerivativesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |