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Provisions - Sensitivity to Changes in Actuarial Assumptions on Discounted Obligation of Telefónica Brazil Plan (Details) € in Millions | Dec. 31, 2024 EUR (€)
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Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Percentage of possible increase in actuarial assumption | 1.00%
Percentage of reasonably possible decrease in actuarial assumption | 1.00%
Brazil | Foreign defined benefit plans | Discount rate |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | € 545
Brazil | Foreign defined benefit plans | Discount rate | Present value of the obligation by increasing the discount rate by 0.5% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | € 523
Percentage of possible increase in actuarial assumption | 0.50%
Brazil | Foreign defined benefit plans | Discount rate | Present value of the obligation by reducing the discount rate by 0.5% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | € 567
Percentage of reasonably possible decrease in actuarial assumption | 0.50%
Brazil | Foreign defined benefit plans | Growth rate |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | € 545
Brazil | Foreign defined benefit plans | Growth rate | Present value of the obligation by increasing the rate by 1% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | € 573
Percentage of possible increase in actuarial assumption | 1.00%
Brazil | Foreign defined benefit plans | Growth rate | Present value of the obligation by reducing the rate by 1% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | € 521
Percentage of reasonably possible decrease in actuarial assumption | 1.00%
Brazil | Pension plans | Foreign defined benefit plans | Discount rate |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | € 304
Brazil | Pension plans | Foreign defined benefit plans | Discount rate | Present value of the obligation by increasing the discount rate by 0.5% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | 295
Brazil | Pension plans | Foreign defined benefit plans | Discount rate | Present value of the obligation by reducing the discount rate by 0.5% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | 313
Brazil | Pension plans | Foreign defined benefit plans | Growth rate |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | 304
Brazil | Pension plans | Foreign defined benefit plans | Growth rate | Present value of the obligation by increasing the rate by 1% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | 304
Brazil | Pension plans | Foreign defined benefit plans | Growth rate | Present value of the obligation by reducing the rate by 1% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | 304
Brazil | Health plans | Foreign defined benefit plans | Discount rate |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | 241
Brazil | Health plans | Foreign defined benefit plans | Discount rate | Present value of the obligation by increasing the discount rate by 0.5% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | 228
Brazil | Health plans | Foreign defined benefit plans | Discount rate | Present value of the obligation by reducing the discount rate by 0.5% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | 254
Brazil | Health plans | Foreign defined benefit plans | Growth rate |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | 241
Brazil | Health plans | Foreign defined benefit plans | Growth rate | Present value of the obligation by increasing the rate by 1% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | 269
Brazil | Health plans | Foreign defined benefit plans | Growth rate | Present value of the obligation by reducing the rate by 1% |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
Defined benefit obligation, at present value | € 217

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- Definition The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 57 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_57_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The reasonably possible percentage of the decrease in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_145_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The reasonably possible percentage of the increase in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_145_a&doctype=Standard -URIDate 2024-03-27 + Details
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