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Basis of Preparation of the Consolidated Financial Statements and Summary of Significant Accounting Policies and Practices - Additional Information (Detail) $ in Millions |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 29, 2024 MXN ($) | Oct. 06, 2022 MXN ($) | Nov. 23, 2021 MXN ($) | Nov. 23, 2021 USD ($) | Sep. 15, 2021 MXN ($) | Sep. 15, 2021 USD ($) | Dec. 31, 2023 MXN ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 MXN ($) | Dec. 31, 2021 MXN ($) | Dec. 31, 2018 | Dec. 31, 2023 USD ($) | Sep. 14, 2020
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative index |  |  |  |  |  |  | 3,576.4 | 3,576.4 |  |  |  |  |
Percentage of annual basis index |  |  |  |  |  |  | 211.41% | 211.41% |  |  |  |  |
Closing exchange rate | 1.55 |  |  |  |  |  |  |  |  |  |  |  |
Cumulative translation (loss) gain |  |  |  |  |  |  | $ (274,303,207,000) |  | $ (227,044,342,000) |  |  | $ (16,237.0) |
Impairment losses on goodwill |  |  |  |  |  |  | 0 |  | 0 | $ 0 |  |  |
Borrowing costs capitalised |  |  |  |  |  |  | 1,442,077,000 |  | 1,514,654,000 | 1,527,259,000 |  |  |
Impairment losses |  |  |  |  |  |  | 0 |  | 0 | 0 |  |  |
Impairment losses on intangibles |  |  |  |  |  |  | $ 0 |  | 0 | 0 |  |  |
Description of estimation of impairment cash-generating unit |  |  |  |  |  |  | In the estimation of impairments, the Company uses the strategic plans established for the separate cash-generating units to which the assets are assigned. Such strategic plans generally cover a period from 3 to 5 years. For longer periods, beginning in the fifth year, projections are based on such strategic plans while applying a constant or declining expected perpetual growth rate. | In the estimation of impairments, the Company uses the strategic plans established for the separate cash-generating units to which the assets are assigned. Such strategic plans generally cover a period from 3 to 5 years. For longer periods, beginning in the fifth year, projections are based on such strategic plans while applying a constant or declining expected perpetual growth rate. |  |  |  |  |
Percentage of sensitivity analysis for increase in capital expenditures |  |  |  |  |  |  | 5.00% | 5.00% |  |  |  |  |
Monthly contributions to pension fund |  |  |  |  |  |  | 17.50% | 17.50% |  |  |  |  |
Percentage of employee profit sharing based on individual company taxable income |  |  |  |  |  |  | 10.00% | 10.00% |  |  |  |  |
Advertising expenses |  |  |  |  |  |  | $ 11,781,250,000 |  | 12,676,350,000 | 11,118,723,000 |  |  |
Increase (decrease) in interest expense |  |  |  |  |  |  | $ 500,677,052,000 |  | 510,589,480,000 |  |  |  |
Concentration risk percentage |  |  |  |  |  |  | 10.00% |  |  |  |  | 10.00% |
Proceeds from sale of Subsidiary |  |  |  |  |  |  |  |  | 5,791,488,000 | 75,518,886,000 |  |  |
Accumelated Foreign Currency Translation Effect |  | $ 6,943,753,000 |  |  | $ 1,750,451,000 |  |  |  |  |  |  |  |
Percentage Of Devaluation In Exchange Rate Value |  |  |  |  |  |  | 80.90% |  |  |  |  | 80.90% |
Foreign exchange gain (loss) | $ 17,155.2000 |  |  |  |  |  | $ 14,653,523,000 | $ 867.0 | $ 20,761,622,000 | $ (16,714,847,000) |  |  |
CAPEX [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments of sensitivity analysis long-life assets |  |  |  |  |  |  | 1,208,795,000 |  |  |  |  |  |
CGU [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments of sensitivity analysis long-life assets |  |  |  |  |  |  | $ 1,235,848,000 |  |  |  |  |  |
Argentina pesos [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign exchange loss rate |  |  |  |  |  |  | 60.00% |  |  |  |  | 60.00% |
Foreign subsidiaries [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated operating revenues |  |  |  |  |  |  | 60.00% | 60.00% | 63.00% | 63.00% |  |  |
Percentage of operating revenue as percentage of total assets |  |  |  |  |  |  | 65.00% | 65.00% | 64.00% |  |  |  |
Tracfone Wireless Inc Tracfone [member] | Verizon Communications Inc [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest in subsidiary agreed to sell |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%
Tracfone Wireless Inc Tracfone [member] | Verizon Communications Inc [Member] | Discontinued operations [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest in subsidiary sold |  |  |  | 100.00% |  |  |  |  |  | 100.00% |  |  |
Proceeds from sale of Subsidiary |  |  | $ 3,625,700,000 |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents in subsidiary or businesses acquired or disposed |  |  |  | $ 500.7 |  |  |  |  |  |  |  |  |
Value of Shares received on sale of subsidiary from Counterparty |  |  |  | 2,968.0 |  |  |  |  |  |  |  |  |
Earntout contingent consideration receivable tranche one |  |  |  | 500.0 |  |  |  |  |  |  |  |  |
Earntout contingent consideration receivable tranche two |  |  |  | $ 150.0 |  |  |  |  |  |  |  |  |
Gains (losses) recognised when control of subsidiary is lost |  |  | $ 106,527,287,000 |  |  |  |  |  |  |  |  |  |
Claro Panama [Member] | Liberty Latin America [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest in subsidiary agreed to sell |  |  |  |  |  | 100.00% |  |  |  |  |  |  |
Consideration transferred, acquisition-date fair value |  |  |  |  |  | $ 200.0 |  |  |  |  |  |  |
Claro Panama [Member] | Liberty Latin America [Member] | Discontinued operations [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest in subsidiary sold |  |  |  |  |  | 100.00% |  |  |  |  |  |  |
Proceeds from sale of Subsidiary |  |  |  |  |  | $ 116.7 |  |  |  |  |  |  |
Gains (losses) recognised when control of subsidiary is lost |  | $ 707,245,000 |  |  | $ 3,405,014,000 |  |  |  |  |  |  |  |
Interest rate risk [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in basis points |  |  |  |  |  |  | 100.00% | 100.00% |  |  |  |  |
Increase in net interest expense |  |  |  |  |  |  | $ (4,941,344,000) |  | $ (11,128,215,000) |  |  |  |
Decrease in interest expense |  |  |  |  |  |  | $ 8,046,987,000 |  | $ 1,828,215,000 |  |  |  |
Currency risk [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Fluctuation in exchange rates |  |  |  |  |  |  | 5.68% |  | 6.33% |  |  | 5.68% |
Increase (decrease) in interest expense |  |  |  |  |  |  | $ 500,677,051,000 |  | $ 510,589,480,000 |  |  |  |
Increase (decrease) through changes in foreign exchange rates, regulatory deferral account credit balances |  |  |  |  |  |  | 525,710,904,000 |  | 536,118,954,000 |  |  |  |
Increase (decrease) through changes in discount rates, regulatory deferral account credit balances |  |  |  |  |  |  | $ (475,643,199,000) |  | $ (485,060,006,000) |  |  |  |
Increase/(decrease) in exchange rates |  |  |  |  |  |  | 5.00% | 5.00% | 5.00% |  |  |  |
Argentina [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Closing exchange rate |  |  |  |  |  |  | 0.0209 |  | 0.1096 |  |  | 0.0209 |
Argentina [member] | Impact of application of hyperinflation adjustments in 2018 [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative inflation percentage |  |  |  |  |  |  |  |  |  |  | 100.00% |  |
U.S.A. [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Closing exchange rate |  |  |  |  |  |  | 16.8935 |  | 19.4143 |  |  | 16.8935 |
Cumulative translation adjustment [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Closing exchange rate |  |  |  |  |  |  | 0.0209 |  | 0.1096 |  |  |  |
Cumulative translation (loss) gain |  |  |  |  |  |  | $ (164,975,378,000) |  | $ (128,299,347,000) |  |  |  |
VTR and Claro Chile [Member] | Agreement to Commence Joint Venture [Member] | Liberty Latin America [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in joint venture |  | 50.00% |  |  |  |  |  |  |  |  |  |  |
VTR and Claro Chile [Member] | Agreement to Commence Joint Venture [Member] | Amrica Movil [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in joint venture |  | 50.00% |  |  |  |  |  |  |  |  |  |  |
Licenses and rights of use [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  |  | 3 years | 3 years |  |  |  |  |
Licenses and rights of use [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  |  | 30 years | 30 years |  |  |  |  |
Trademarks [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  |  | 1 year | 1 year |  |  |  |  |
Trademarks [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  |  | 10 years | 10 years |  |  |  |  |
Customer relationships [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  |  | 5 years | 5 years |  |  |  |  |

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