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Related Parties (Tables)
 12 Months Ended
Dec. 31, 2021
Text block [abstract]  
Summary of Analysis of the Balances with Related Parties
a) The following is an analysis of the balances with related parties as of December 31, 2020 and 2021. All of the companies were considered affiliates of América Móvil since the Company’s principal shareholders are either direct or indirect shareholders in the related parties.
 
     2020     
2021
  
Accounts receivable:
                  
Sears Roebuck de México, S.A. de C.V. and Subsidiaries
    Ps. 233,402     
Ps.
339,366
 
Sanborns Hermanos, S.A.
      160,116     
 
192,599
 
Patrimonial Inbursa, S.A.
      327,985     
 
145,676
 
Grupo Condumex, S.A. de C.V. and Subsidiaries
      10,038     
 
122,555
 
Hubard y Bourlon, S.A. de C.V.
      437,231     
 
52,026
 
Claroshop.com, S.A.P.I de C.V.
      100,075     
 
40,906
 
Other
      122,453     
 
265,483
 
    
 
 
     
 
 
  
Total
    Ps. 1,391,300     
Ps.
1,158,611
 
    
 
 
     
 
 
  
 
 
  
2020
 
  
2021
 
Accounts payable:
  
  
Carso Infraestructura y Construcción, S.A. de C.V. and Subsidiaries
    Ps. 2,192,405     
Ps.
1,273,085
 
Grupo Condumex, S.A. de C.V. and Subsidiaries
      1,054,526     
 
1,709,487
 
Fianzas Guardiana Inbursa, S.A. de C.V.
      241,898     
 
385,287
 
Claroshop.com, S.A.P.I de C.V.
      4,300     
 
247,081
 
Grupo Financiero Inbursa, S.A.B. de C.V.
      234,954     
 
102,314
 
Seguros Inbursa, S.A. de C.V.
      92,173     
 
113,089
 
Sociedad Financiera Inbursa, S.A. de C.V.
      —       
 
80,382
 
PC Industrial, S.A. de C.V. and Subsidiaries
      44,198     
 
4,761
 
Enesa, S.A. de C.V. and Subsidiaries
      22,014     
 
9,384
 
Other
      113,448     
 
292,012
 
    
 
 
     
 
 
  
Total
    Ps. 3,999,916     
Ps.
4,216,882
  
    
 
 
     
 
 
  
Summary of Transactions with Related Parties
b) For the years ended December 31, 2019, 2020 and 2021, the Company conducted the following transactions with related parties:
 
     2019      2020     
2021
  
Investments and expenses:
                           
Construction services, purchases of materials, inventories and property, plant and equipment 
(i)
    Ps. 8,573,894      Ps. 7,130,769     
Ps.
13,544,289
  
Insurance premiums, fees paid for administrative and operating services, brokerage services and others
(ii)
      4,590,620        4,375,113     
 
4,336,133
 
Other services
      1,277,404        1,101,528     
 
1,617,102
 
    
 
 
     
 
 
     
 
 
  
     Ps. 14,441,918      Ps. 12,607,410     
Ps.
19,497,524
  
    
 
 
     
 
 
     
 
 
  
Revenues:
                           
Service revenues
    Ps. 538,110      Ps. 608,248     
Ps.
714,148
 
Sales of equipment
 
(iii)
      944,697        656,801     
 
7,629,181
 
    
 
 
     
 
 
     
 
 
  
     Ps. 1,482,807      Ps. 1,265,049     
Ps.
8,343,329
 
    
 
 
     
 
 
     
 
 
  
 
i)
In 2021, this amount includes Ps.
 
11,447,164 (Ps.
 
5,312,845 in 2020 and Ps.
 
6,809,244 in 2019) for network construction services and construction materials purchased from subsidiaries of Grupo Carso, S.A.B. de C.V. (Grupo Carso).
ii)
In 2021, this amount includes Ps.
 
121,728 (Ps.
 
203,013 in 2020 and Ps.
 
956,132 in 2019) for network maintenance services performed by Grupo Carso subsidiaries; Ps.
 
50,730 in 2021 (Ps.
 
13,490 in 2020, and Ps.
 
16,161 in 2019) for software services provided by an associate; Ps.
 
3,814,995 in 2021 (Ps.
 
2,713,370 in 2020 and Ps.
 
2,623,795 in 2019) for insurance premiums with Seguros Inbursa S.A. and Fianzas Guardiana Inbursa, S.A., which, in turn, places most of such insurance with reinsurers.
iii)
In November 2021, a subsidiary of Telmex sold certain tower assets to Telesites, S.A.B. de C.V.
iv)
The amounts related to payments for tower lease are reflected in Note 15.