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Commitments and Contingencies - Additional Information (Detail)
R$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2022
BRL (R$)
Dec. 31, 2022
MXN ($)
Dec. 31, 2018
MXN ($)
Dec. 31, 2022
MXN ($)
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 R$ 4,358,000 $ 16,215,464    
Value Added Tax [Member]        
Disclosure of commitments and contingencies [line items]        
Tax contingencies amount 9,573,491     $ 35,621,523
Provision for taxes [member] | Value Added Tax [Member]        
Disclosure of commitments and contingencies [line items]        
Provision 944,747     3,515,261
Provision for taxes [member] | Social Contribution [Member]        
Disclosure of commitments and contingencies [line items]        
Provision 1,093,047     4,067,063
Provision for taxes [member] | Social Integration Program [Member]        
Disclosure of commitments and contingencies [line items]        
Provision 1,497,679     5,572,638
Provision for taxes [member] | Allegedly Improper Exclusion [Member]        
Disclosure of commitments and contingencies [line items]        
Provision 394,774     1,468,894
Provision for taxes [member] | Tax Credit Related to Income Tax and Social Contribution Over Profits [Member]        
Disclosure of commitments and contingencies [line items]        
Provision 22,565     83,960
Provision for taxes [member] | Contribute To The Promotion Of Public Radio Broadcasting [Member]        
Disclosure of commitments and contingencies [line items]        
Provision 1,094,825     4,073,679
Provision for taxes [member] | Telecommunications Technology Development Fund [Member]        
Disclosure of commitments and contingencies [line items]        
Provision 116     431
Provision for taxes [member] | Services Tax [Member]        
Disclosure of commitments and contingencies [line items]        
Provision 12,343     45,926
Provision for taxes [member] | IRRF And Cide Taxes And Remittances To Foreign Operators [Member]        
Disclosure of commitments and contingencies [line items]        
Provision R$ 34,269     127,509
Agencia Nacional de telecomunicacoes [member]        
Disclosure of commitments and contingencies [line items]        
Inflation-related adjustments applicable to percentage of concessions price 60.00% 60.00%    
Related matters [member] | Provision for taxes [member]        
Disclosure of commitments and contingencies [line items]        
Provision R$ 5,142,909     19,135,992
Tax contingent liability [member] | Social Contribution [Member]        
Disclosure of commitments and contingencies [line items]        
Tax contingencies amount 4,333,989     16,126,122
Tax contingent liability [member] | Social Integration Program [Member]        
Disclosure of commitments and contingencies [line items]        
Tax contingencies amount 5,017,060     18,667,727
Tax contingent liability [member] | Allegedly Improper Exclusion [Member]        
Disclosure of commitments and contingencies [line items]        
Tax contingencies amount 3,559,147     13,243,052
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 2,115,128     7,870,074
Tax contingent liability [member] | Contribute To The Promotion Of Public Radio Broadcasting [Member]        
Disclosure of commitments and contingencies [line items]        
Tax contingencies amount 1,230,359     4,577,981
Tax contingent liability [member] | Telecommunications Technology Development Fund [Member]        
Disclosure of commitments and contingencies [line items]        
Tax contingencies amount 1,529,076     5,689,462
Tax contingent liability [member] | Services Tax [Member]        
Disclosure of commitments and contingencies [line items]        
Tax contingencies amount 563,805     2,097,833
Tax contingent liability [member] | IRRF And Cide Taxes And Remittances To Foreign Operators [Member]        
Disclosure of commitments and contingencies [line items]        
Tax contingencies amount 1,204,510     4,481,801
Tax contingent liability [member] | Related matters [member]        
Disclosure of commitments and contingencies [line items]        
Tax contingencies amount 35,594,051     132,440,125
Contingent liabilities [member] | TFI [member]        
Disclosure of commitments and contingencies [line items]        
Tax contingencies amount 5,902,393     21,961,918
Provision for Monetary correction in a total amount of regulatory matters [member]        
Disclosure of commitments and contingencies [line items]        
Provision R$ 1,501,000     $ 5,584,995