XML 204 R79.htm IDEA: XBRL DOCUMENT v3.22.1
Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment, Net (Detail)
$ in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2021
MXN ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
MXN ($)
Dec. 31, 2019
MXN ($)
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance $ 722,929,631   $ 639,343,370 $ 640,000,720
Additions 231,539,820   198,788,458 238,821,559
Retirements (92,643,640) [1]   (106,489,087) (112,234,066)
Business combinations 0   1,053,921 10,919,581
Revaluation adjustments     107,152,628  
Transfers (1,966,088)      
Effect of translation of foreign subsidiaries (16,000,632)   (1,598,974) (23,371,038)
Depreciation of the year 112,662,412   115,320,685 114,793,386
Ending balance 731,196,679 $ 35,523 722,929,631 639,343,370
Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 1,355,800,837   1,319,587,687 1,285,672,457
Additions 231,539,820   198,788,458 238,821,559
Retirements (127,800,314) [2]   (143,373,691) (138,455,063)
Business combinations 0   1,053,921 10,919,581
Revaluation adjustments     107,152,628  
Transfers (1,000,104)   (62,050,212)  
Effect of translation of foreign subsidiaries (49,542,949)   (65,357,954) (77,370,847)
Ending balance 1,408,997,290   1,355,800,837 1,319,587,687
Cost [member] | Network in operation in operation and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 1,057,592,243   990,673,603 969,195,936
Additions 89,696,150   90,387,449 82,992,062
Retirements (45,044,049) [2]   (19,574,391) (13,417,360)
Business combinations 0   996,974 9,572,805
Revaluation adjustments     107,152,628  
Transfers 53,531,590   (62,050,212)  
Effect of translation of foreign subsidiaries (44,061,097)   (49,993,808) (57,669,840)
Ending balance 1,111,714,837   1,057,592,243 990,673,603
Cost [member] | Land and buildings [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 48,887,578   50,801,253 57,130,326
Additions 784,460   570,062 1,530,677
Retirements (473,785) [2]   (2,853,037) (4,025,222)
Business combinations       115,935
Transfers 38,250      
Effect of translation of foreign subsidiaries (1,216,894)   369,300 (3,950,463)
Ending balance 48,019,609   48,887,578 50,801,253
Cost [member] | Other assets [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 157,022,845   162,340,564 149,809,137
Additions 10,782,903   17,474,218 26,881,611
Retirements (11,994,756) [2]   (14,454,598) (7,594,735)
Business combinations 0   55,848 1,021,051
Transfers (1,800,756)      
Effect of translation of foreign subsidiaries (1,870,104)   (8,393,187) (7,776,500)
Ending balance 152,140,132   157,022,845 162,340,564
Cost [member] | Construction in process and advances plant suppliers [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance [3] 67,501,913   81,539,174 81,092,529
Additions [3] 83,366,813   59,635,316 82,640,305
Retirements (47,178,796) [2]   (68,661,847) [3] (76,892,011) [3]
Business combinations [3] 0   1,099 209,790
Transfers [3] (38,944,421)      
Effect of translation of foreign subsidiaries [3] (1,420,843)   (5,011,829) (5,511,439)
Ending balance [3] 63,324,666   67,501,913 81,539,174
Cost [member] | Spare parts for operation of the network [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 24,796,258   34,233,093 28,444,529
Additions 46,909,494   30,721,413 44,776,904
Retirements (23,108,928) [2]   (37,829,818) (36,525,735)
Business combinations       0
Transfers (13,824,767)      
Effect of translation of foreign subsidiaries (974,011)   (2,328,430) (2,462,605)
Ending balance 33,798,046   24,796,258 34,233,093
Accumulated depreciation [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 632,871,206   680,244,317 645,671,737
Retirements (35,156,674) [2]   (36,884,604) (26,220,997)
Transfers (965,984)   (62,050,212)  
Effect of translation of foreign subsidiaries (33,542,317)   (63,758,980) (53,999,809)
Depreciation of the year 112,662,412   115,320,685 114,793,386
Ending balance 677,800,611   632,871,206 680,244,317
Accumulated depreciation [member] | Network in operation in operation and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 531,267,306   580,370,101 560,005,547
Retirements (24,322,904) [2]   (25,726,856) (24,954,514)
Transfers 638,066   (62,050,212) [4]  
Effect of translation of foreign subsidiaries (30,254,288)   (58,055,450) (47,778,627)
Depreciation of the year 97,343,878   96,729,723 93,097,695
Ending balance 574,672,058   531,267,306 580,370,101
Accumulated depreciation [member] | Other assets [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 92,444,017   90,332,191 76,533,494
Retirements (10,522,319) [2]   (9,317,821) (695,425)
Transfers 549,855      
Effect of translation of foreign subsidiaries (2,522,458)   (5,120,175) (4,754,982)
Depreciation of the year 13,310,584   16,549,822 19,249,104
Ending balance 93,259,679   92,444,017 90,332,191
Accumulated depreciation [member] | Spare parts for operation of the network [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 72,484   74,717 321,747
Retirements (92,421) [2]   (176,131) (283,986)
Effect of translation of foreign subsidiaries (26,823)   38,898 (79,226)
Depreciation of the year 66,131   135,000 116,182
Ending balance 19,371   72,484 74,717
Accumulated depreciation [member] | Buildings [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 9,087,399   9,467,308 8,810,949
Retirements (219,030) [2]   (1,663,796) (287,072)
Transfers (221,937)      
Effect of translation of foreign subsidiaries (738,748)   (622,253) (1,386,974)
Depreciation of the year 1,941,819   1,906,140 2,330,405
Ending balance $ 9,849,503   $ 9,087,399 $ 9,467,308
[1] Includes disposals related to the sale of TracFone. See Note 2Ac.
[2] Includes disposals related to the sale of TracFone. See Note 2, Ac).
[3] Construction in progress includes fixed and mobile network facilities as well as satellite developments and fiber optic which is in the process of being installed.
[4] This transfer relates to the accumulated depreciation as at the revaluation date that was eliminated against the gross carrying amount of the revalued asset.