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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. 28, 2023
MXN ($)
Oct. 06, 2022
Nov. 23, 2021
MXN ($)
Nov. 23, 2021
USD ($)
Sep. 15, 2021
MXN ($)
Sep. 15, 2021
USD ($)
Dec. 31, 2022
MXN ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
MXN ($)
Dec. 31, 2020
MXN ($)
Dec. 31, 2018
Dec. 31, 2022
USD ($)
Sep. 14, 2020
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items]                          
Cumulative index             138.639 138.639          
Percentage of annual basis index             95.50% 95.50%          
Cumulative translation (loss) gain             $ (227,044,342,000)   $ (154,388,930,000)     $ (11,694.0)  
Impairment losses on goodwill             0   0 $ 0      
Borrowing costs capitalised             1,514,654,000   1,527,259,000 1,771,613,000      
Impairment losses             $ 0   0 0      
Intangibles useful life             amortized over a 5-year period. amortized over a 5-year period.          
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%          
Adjustments of sensitivity analysis long-life assets             $ 824,210,000            
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             $ 12,676,350,000   11,118,723,000 10,405,228,000      
Increase (decrease) in interest expense             $ 510,589,480,000   564,030,102,000        
Concentration risk percentage             10.00%         10.00%  
Proceeds from sale of Subsidiary             $ 5,791,488,000 $ 298.0 $ 75,518,886,000 $ 0      
Description of employee profit sharing ratio             a limit on the amount to be paid for profit sharing to employees, which indicates that the amount of EPS assigned to each employee may not exceed the equivalent of three months of the employee’s current salary, or the average EPS received by the employee in the previous three years, whichever is greater. If the EPS determined is less than or equal to this limit, the EPS will be determined by applying 10% of the individual company taxable income. If the EPS determined exceeds this limit, the limit would apply and this should be considered the EPS for the period. a limit on the amount to be paid for profit sharing to employees, which indicates that the amount of EPS assigned to each employee may not exceed the equivalent of three months of the employee’s current salary, or the average EPS received by the employee in the previous three years, whichever is greater. If the EPS determined is less than or equal to this limit, the EPS will be determined by applying 10% of the individual company taxable income. If the EPS determined exceeds this limit, the limit would apply and this should be considered the EPS for the period.          
Accumelated Foreign Currency Translation Effect         $ 1,750,451,000                
Changes In Exchange Rate [Member]                          
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items]                          
Foreign exchange rate 18,072.3000                        
Percentage of appreciation in exchange rate value 6.91%                        
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             63.00% 63.00% 63.00% 65.00%      
Percentage of operating revenue as percentage of total assets             64.00% 64.00% 70.00%        
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%                  
Proceeds from sale of Subsidiary     $ 3,625,700                    
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         $ 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             $ (11,128,215,000)            
Increase (decrease) in interest expense             $ 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             5.00%         5.00%  
Increase (decrease) in interest expense             $ 510,589,480,000            
Increase (decrease) through changes in foreign exchange rates, regulatory deferral account credit balances             536,118,954,000            
Increase (decrease) through changes in discount rates, regulatory deferral account credit balances             $ (485,060,006,000)            
Increase/(decrease) in exchange rates             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             0.1096   0.2004     0.1096  
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             19.4143   20.5835     19.4143  
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             0.1096   0.2004        
Cumulative translation (loss) gain             $ (128,299,347,000)   $ (104,270,295,000)        
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]                          
Disclosure of basis of preparation of consolidated financial statements and summary of significant accounting policies and practices [line items]                          
Intangibles useful life             Licenses are amortized when the Company does not have a basis to conclude that they are indefinite lived. Licenses are amortized using the straight-line method over a period ranging from 3 to 30 years, which represents the usage period of the assets. Licenses are amortized when the Company does not have a basis to conclude that they are indefinite lived. Licenses are amortized using the straight-line method over a period ranging from 3 to 30 years, which represents the usage period of the assets.          
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