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Commitments and Contingencies - Additional Information (Detail) R$ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 MXN ($) | Dec. 31, 2022 MXN ($) | Dec. 31, 2022 BRL (R$) | Dec. 31, 2018 MXN ($) | Dec. 31, 2023 BRL (R$)
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Fine imposed on sanction procedure initiated by triggered breach |  |  |  | $ 2,543,937 |
Monetary correction in a total amount of regulatory matters |  | $ 14,579,000 | R$ 4,178,000 |  |
Value Added Tax [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | $ 39,637,229 |  |  |  | R$ 11,359,145
Provision for taxes [member] | Value Added Tax [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | 5,314,821 |  |  |  | 1,523,109
Provision for taxes [member] | Social Contribution [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | 3,502,153 |  |  |  | 1,003,639
Provision for taxes [member] | Social Integration Program [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | 5,749,593 |  |  |  | 1,647,705
Provision for taxes [member] | Allegedly Improper Exclusion [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | 1,443,933 |  |  |  | 413,799
Provision for taxes [member] | Tax Credit Related to Income Tax and Social Contribution Over Profits [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | 135,398 |  |  |  | 38,802
Provision for taxes [member] | Contribute To The Promotion Of Public Radio Broadcasting [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | 4,106,726 |  |  |  | 1,176,896
Provision for taxes [member] | Telecommunications Technology Development Fund [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | 450 |  |  |  | 129
Provision for taxes [member] | Services Tax [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | 45,304 |  |  |  | 12,983
Provision for taxes [member] | IRRF And Cide Taxes And Remittances To Foreign Operators [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | $ 134,229 |  |  |  | 38,467
Agencia Nacional de telecomunicacoes [member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Inflation-related adjustments applicable to percentage of concessions price | 60.00% |  |  |  |
Related matters [member] | Provision for taxes [member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | $ 20,725,637 |  |  |  | 5,939,505
Tax contingent liability [member] | Social Contribution [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | 5,962,223 |  |  |  | 1,708,640
Tax contingent liability [member] | Social Integration Program [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | 17,376,221 |  |  |  | 4,979,637
Tax contingent liability [member] | Allegedly Improper Exclusion [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | 13,754,400 |  |  |  | 3,941,704
Tax contingent liability [member] | Tax Credit Related to Income Tax and Social Contribution Over Profits [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | 5,965,336 |  |  |  | 1,709,532
Tax contingent liability [member] | Contribute To The Promotion Of Public Radio Broadcasting [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | 4,431,497 |  |  |  | 1,269,968
Tax contingent liability [member] | Telecommunications Technology Development Fund [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | 6,230,607 |  |  |  | 1,785,553
Tax contingent liability [member] | Services Tax [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | 2,139,175 |  |  |  | 613,040
Tax contingent liability [member] | IRRF And Cide Taxes And Remittances To Foreign Operators [Member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | 4,757,143 |  |  |  | 1,363,291
Tax contingent liability [member] | Related matters [member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | 123,637,128 |  |  |  | 35,431,641
Contingent liabilities [member] | TFI [member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Tax contingencies amount | 21,754,988 |  |  |  | 6,234,494
Provision for Monetary correction in a total amount of regulatory matters [member] |  |  |  |  |
Disclosure of commitments and contingencies [line items] |  |  |  |  |
Provision | $ 5,203,092 |  |  |  | R$ 1,491,090

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