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Employee Benefits, Defined Contribution Plans, Europe (Details) - MXN ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2019
Defined Contribution Plans [Abstract] |  |  |  |
Net period cost (benefit) | $ 18,232,542 | $ 16,971,936 | $ 15,979,152 |
Telekom Austria [Member] | Defined Contribution Plans [Member] |  |  |  |
Defined Contribution Plans [Abstract] |  |  |  |
Annual expense of defined contribution plan | $ 211,733 | 199,345 |  |
Top of Range [Member] | Telekom Austria [Member] | Defined Contribution Plans [Member] |  |  |  |
Defined Contribution Plans [Abstract] |  |  |  |
Percentage of defined contribution plan | 5.00% |  |  |
Austria [Member] |  |  |  |
Defined Contribution Plans [Abstract] |  |  |  |
Contributions to social security, net of the share contributed by civil servants | $ 1,169,174 | 1,105,037 |  |
Contributions to the government, net of the share contributed by civil servants | 651,574 | 560,777 |  |
Austria [Member] | Defined Contribution Plans [Member] |  |  |  |
Defined Contribution Plans [Abstract] |  |  |  |
Net period cost (benefit) | $ 154,380 | $ 145,456 |  |
Austria [Member] | Telekom Austria [Member] |  |  |  |
Defined Contribution Plans [Abstract] |  |  |  |
Percentage of contribution to social security |  |  |  | 12.55%
Austria [Member] | Bottom of Range [Member] |  |  |  |
Defined Contribution Plans [Abstract] |  |  |  |
Percentage of contribution to active civil servants |  | 7.00% |  |
Austria [Member] | Top of Range [Member] |  |  |  |
Defined Contribution Plans [Abstract] |  |  |  |
Percentage of contribution to active civil servants | 28.00% |  |  |

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- Definition Contributions to government net of share contributed by civil servants. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The percentage of contribution for active civil servants during the period. + References No definition available. + Details
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- Definition The percentage of contribution compensation for social security. + References No definition available. + Details
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- Definition The percentage of defined contribution plan compensation not exceeding. + References No definition available. + Details
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- Definition The amount of employer contributions to retirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2024-01-01 -Paragraph 35 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=26&code=ifrs-tx-2024-en-r&anchor=para_35_b_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from past service cost and losses (gains) arising from settlements. [Refer: Decrease (increase) in net defined benefit liability (asset) resulting from gains (losses) arising from settlements; Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_d&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of post-employment benefit expense relating to defined contribution plans. Defined contribution plans are post-employment benefit plans under which an entity pays fixed contributions into a separate entity (a fund) and will have no legal or constructive obligation to pay further contributions if the fund does not hold sufficient assets to pay all employee benefits relating to employee service in the current and prior periods. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 53 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_53&doctype=Standard -URIDate 2024-03-27 + Details
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