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Income Taxes - Additional Information (Detail)
R$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2022
MXN ($)
Dec. 31, 2022
BRL (R$)
Dec. 31, 2021
MXN ($)
Dec. 31, 2021
BRL (R$)
Dec. 31, 2020
MXN ($)
Dec. 31, 2020
BRL (R$)
Nov. 23, 2021
Dec. 31, 2019
MXN ($)
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]                
Effective income tax rate for foreign jurisdiction 17.40% 17.40% 19.30% 19.30% 16.20% 16.20%    
Percentage of share with voting right 80.00%              
Accounting profit $ 1,163,081 R$ 297,880 $ 1,431,164 R$ 380,373 $ 1,721,453 R$ 411,336    
Adjustments For Deferred Tax Of Prior Periods     2,647,919 703,761        
Excess On Deferred Income Tax     2,076,594 551,915        
Excess On Current Income Tax     571,325 R$ 151,846        
Deductible temporary differences for which no deferred tax asset is recognised 187,830,823   218,859,473          
Deferred Tax Liability Asset (98,415,751)   (77,822,839)   $ (66,303,077)     $ (88,074,856)
Discontinued operations [member] | Tracfone Wireless Inc Tracfone [member] | Verizon Communications Inc [Member]                
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]                
Percentage of ownership interest in subsidiary sold             100.00%  
Tax Profit On Sale of Subsidiary     93,968,555          
Brazil [member]                
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]                
Net operating loss carryforwards $ 72,498,097              
Effective taxable income percentage carryforward 30.00% 30.00%            
Tax Losses Reserved For Future Utilisation $ 14,701,405              
Mexico [member]                
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]                
Accumulated tax loss 26,969,956              
Tax Losses Reserved For Future Utilisation $ 14,701,405              
Euros [member]                
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]                
Effective taxable income percentage carryforward 75.00% 75.00%            
Accumulated tax loss $ 1,882,415              
Bottom of range [member]                
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]                
Statutory tax rates 10.00% 10.00%            
Top of range [member]                
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]                
Statutory tax rates 35.00% 35.00%            
CUCA [member]                
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]                
Contributed capital account $ 654,631,901   612,351,412          
CUFIN [member]                
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]                
Contributed capital account 533,076,863   431,249,107          
Retained earnings                
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]                
Deferred Tax Liability Asset $ 902,508   $ 1,621,040