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Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment, Net (Detail) $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2023 MXN ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 MXN ($) | Dec. 31, 2021 MXN ($)
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | $ 657,226,210 |  |  | $ 731,196,679 |  | $ 722,929,631 |
Additions |  | 144,607,028 |  |  | 227,067,886 |  | 231,539,820 |
Retirements |  | (10,591,479) | [1],[2] |  | (97,343,915) | [3] | (92,643,640) | [4]
Business combinations | [5] |  |  |  | 1,475,682 |  |  |
Revaluation adjustments |  | (5,394,784) | [6] |  | (51,540,632) | [7] |  |
Transfers |  | (4,368,760) |  |  | 4,121,663 |  | (1,966,088) |
Incorporation (merger, spin-off, sale) | [8] |  |  |  | (14,851,922) |  |  |
Effect of translation of foreign subsidiaries |  | (50,848,185) | [9] |  | (23,287,597) |  | (17,201,315) |
Depreciation of the year |  | (101,979,126) |  |  | (111,368,308) |  | (111,461,729) | [10]
Ending balance |  | 628,650,904 |  | $ 37,213 | 657,226,210 |  | 731,196,679 |
Cost [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | 1,317,191,454 |  |  | 1,408,997,290 |  | 1,355,800,837 |
Additions |  | 144,607,028 |  |  | 227,067,886 |  | 231,539,820 |
Retirements |  | (46,666,137) | [1],[2] |  | (160,497,007) | [3] | (127,800,314) | [4]
Business combinations | [5] |  |  |  | 1,475,682 |  |  |
Revaluation adjustments |  | (6,302,540) | [6] |  | (55,639,215) | [7] |  |
Transfers |  | (4,198,998) |  |  | (3,847,652) |  | (1,000,104) |
Incorporation (merger, spin-off, sale) | [8] |  |  |  | (19,176,964) |  |  |
Effect of translation of foreign subsidiaries |  | (171,266,990) | [9] |  | (81,188,566) |  | (49,542,949) |
Ending balance |  | 1,233,363,817 |  |  | 1,317,191,454 |  | 1,408,997,290 |
Cost [member] | Network in operation and equipment [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | 1,026,018,942 |  |  | 1,111,714,837 |  | 1,057,592,243 |
Additions |  | 50,024,889 |  |  | 56,307,013 |  | 89,696,150 |
Retirements |  | (33,329,584) | [1],[2] |  | (64,315,475) | [3] | (45,044,049) | [4]
Business combinations | [5] |  |  |  | 1,415,252 |  |  |
Revaluation adjustments |  | (6,302,540) | [6] |  | (55,639,215) | [7] |  |
Transfers |  | 70,929,358 |  |  | 63,171,840 |  | 53,531,590 |
Incorporation (merger, spin-off, sale) | [8] |  |  |  | (18,399,253) |  |  |
Effect of translation of foreign subsidiaries |  | (147,930,373) | [9] |  | (68,236,057) |  | (44,061,097) |
Ending balance |  | 959,410,692 |  |  | 1,026,018,942 |  | 1,111,714,837 |
Cost [member] | Land and buildings [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | 43,754,276 |  |  | 48,019,609 |  | 48,887,578 |
Additions |  | 460,406 |  |  | 596,165 |  | 784,460 |
Retirements |  | (623,086) | [1],[2] |  | (2,021,550) | [3] | (473,785) | [4]
Transfers |  | 912,321 |  |  | 737,667 |  | 38,250 |
Effect of translation of foreign subsidiaries |  | (4,104,367) | [9] |  | (3,577,615) |  | (1,216,894) |
Ending balance |  | 40,399,550 |  |  | 43,754,276 |  | 48,019,609 |
Cost [member] | Other assets [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | 145,240,123 |  |  | 152,140,132 |  | 157,022,845 |
Additions |  | 9,207,577 |  |  | 12,325,614 |  | 10,782,903 |
Retirements |  | (4,659,627) | [1],[2] |  | (13,642,510) | [3] | (11,994,756) | [4]
Business combinations | [5] |  |  |  | 23,723 |  |  |
Transfers |  | 91,200 |  |  | 559,935 |  | (1,800,756) |
Incorporation (merger, spin-off, sale) | [8] |  |  |  | (698,522) |  |  |
Effect of translation of foreign subsidiaries |  | (9,019,160) | [9] |  | (5,468,249) |  | (1,870,104) |
Ending balance |  | 140,860,113 |  |  | 145,240,123 |  | 152,140,132 |
Cost [member] | Construction in process and advances plant suppliers [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance | [11] | 59,819,638 | [12] |  | 63,324,666 |  | 67,501,913 |
Additions |  | 60,315,693 | [12] |  | 96,511,498 | [11] | 83,366,813 | [11]
Retirements |  | (3,541,460) | [1],[2],[12] |  | (49,559,746) | [3],[11] | (47,178,796) | [4],[11]
Business combinations | [5],[11] |  |  |  | 36,707 |  |  |
Transfers |  | (52,383,308) | [12] |  | (48,393,706) | [11] | (38,944,421) | [11]
Incorporation (merger, spin-off, sale) | [8] |  |  |  | (72,194) |  |  |
Effect of translation of foreign subsidiaries |  | (3,391,855) | [9],[12] |  | (2,027,587) | [11] | (1,420,843) | [11]
Ending balance |  | 60,818,708 | [12] |  | 59,819,638 | [11],[12] | 63,324,666 | [11]
Cost [member] | Spare parts for operation of the network [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | 42,358,475 |  |  | 33,798,046 |  | 24,796,258 |
Additions |  | 24,598,463 |  |  | 61,327,596 |  | 46,909,494 |
Retirements |  | (4,512,380) | [1],[2] |  | (30,957,726) | [3] | (23,108,928) | [4]
Transfers |  | (23,748,569) |  |  | (19,923,388) |  | (13,824,767) |
Incorporation (merger, spin-off, sale) | [8] |  |  |  | (6,995) |  |  |
Effect of translation of foreign subsidiaries |  | (6,821,235) | [9] |  | (1,879,058) |  | (974,011) |
Ending balance |  | 31,874,754 |  |  | 42,358,475 |  | 33,798,046 |
Accumulated depreciation [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | 659,965,244 |  |  | 677,800,611 |  | 632,871,206 |
Retirements |  | (36,074,658) | [1],[2] |  | (63,153,092) | [3] | (35,156,674) | [4]
Revaluation adjustments |  | (907,756) | [6] |  | (4,098,583) | [7] |  |
Transfers |  | 169,762 |  |  | 274,011 |  | 965,984 |
Incorporation (merger, spin-off, sale) | [8] |  |  |  | (4,325,042) |  |  |
Effect of translation of foreign subsidiaries |  | (120,418,805) | [9] |  | (57,900,969) |  | (32,341,634) |
Depreciation of the year |  | 101,979,126 |  |  | 111,368,308 |  | 111,461,729 | [10]
Ending balance |  | 604,712,913 |  |  | 659,965,244 |  | 677,800,611 |
Accumulated depreciation [member] | Network in operation and equipment [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | 565,890,076 |  |  | 574,672,058 |  | 531,267,306 |
Retirements |  | (32,420,796) | [1],[2] |  | (52,703,338) | [3] | (24,322,904) | [4]
Revaluation adjustments |  | (907,756) | [6] |  | (4,098,583) | [7] |  |
Transfers |  | 106,646 |  |  | (71,627) |  | 638,066 |
Incorporation (merger, spin-off, sale) | [8] |  |  |  | 4,827,813 |  |  |
Effect of translation of foreign subsidiaries |  | (109,318,572) | [9] |  | (52,313,781) |  | (29,767,613) |
Depreciation of the year |  | 89,594,858 |  |  | 95,577,534 |  | 96,857,203 | [10]
Ending balance |  | 512,944,456 |  |  | 565,890,076 |  | 574,672,058 |
Accumulated depreciation [member] | Other assets [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | 85,574,405 |  |  | 93,259,679 |  | 92,444,017 |
Retirements |  | (3,094,804) | [1],[2] |  | (9,711,246) | [3] | (10,522,319) | [4]
Transfers |  | 139,191 |  |  | 298,060 |  | 549,855 |
Incorporation (merger, spin-off, sale) | [8] |  |  |  | (8,940,398) |  |  |
Effect of translation of foreign subsidiaries |  | (7,960,435) | [9] |  | (3,146,276) |  | (1,879,241) |
Depreciation of the year |  | 10,516,865 |  |  | 13,814,586 |  | 12,667,367 | [10]
Ending balance |  | 85,175,222 |  |  | 85,574,405 |  | 93,259,679 |
Accumulated depreciation [member] | Spare parts for operation of the network [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | 101,155 |  |  | 19,371 |  | 72,484 |
Retirements |  | (55,866) | [1],[2] |  | (115,552) | [3] | (92,421) | [4]
Transfers |  | (12,152) |  |  |  |  |  |
Incorporation (merger, spin-off, sale) | [8] |  |  |  | 6,717 |  |  |
Effect of translation of foreign subsidiaries |  | (400,001) | [9] |  | (84,295) |  | (26,823) |
Depreciation of the year |  | 169,822 |  |  | 274,914 |  | 66,131 | [10]
Ending balance |  | (197,042) |  |  | 101,155 |  | 19,371 |
Accumulated depreciation [member] | Buildings [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |  |
Beginning balance |  | 8,399,608 |  |  | 9,849,503 |  | 9,087,399 |
Retirements |  | (503,192) | [1],[2] |  | (622,956) | [3] | (219,030) | [4]
Transfers |  | (63,923) |  |  | 47,578 |  | (221,937) |
Incorporation (merger, spin-off, sale) | [8] |  |  |  | (219,174) |  |  |
Effect of translation of foreign subsidiaries |  | (2,739,797) | [9] |  | (2,356,617) |  | (667,957) |
Depreciation of the year |  | 1,697,581 |  |  | 1,701,274 |  | 1,871,028 | [10]
Ending balance |  | $ 6,790,277 |  |  | $ 8,399,608 |  | $ 9,849,503 |
[1] | Includes disposals for the sale of 2,980 and 224 telecommunications towers on March 30 and July 31, 2023, respectively, owned by its subsidiary in Peru to Sitios Latam.
[2] | It includes disposals related to the sale of 1,388 telecommunications towers on February 3, 2023, owned by its subsidiary in the Dominican Republic to Sitios Latam.
[3] | Includes disposals of Chile’s separation process as a result of the ClaroVTR joint venture. See Note 12b. Also includes disposals related to the sale of Claro Panama. See Note 2Ac and disposals related to the partial sale Claro Peru’s towers to Sitios Latam as of December 31, 2022.
[4] | Includes disposals related to the sale of TracFone.
[5] | “Business Combination” includes the acquisition of Assets of Grupo Oi, Jonava and Ustore, in Brazil. See Note 12a.
[6] | Includes the surplus associated with the telecommunications towers that were transferred by the sale to Sitios Latam, described previously, for an amount of Ps. (6,957,275). In addition, includes the surplus associated with the valuation of the telecommunications towers of EuroTeleSites Group, for an amount of Ps. 1,562,491.
[7] | ¨Revaluation adjustments” include the surplus associated with the 29,090 telecommunications towers, for an amount of Ps. 50,880,804 that was transferred as part of the spin-off of assets to Sitios Latam described in Note 12d.
[8] | “Incorporation (merger, spin-off, sale)” includes disposals associated as spin-off of assets to Sitios Latam described in Note 12d.
[9] | Includes a hyperinflation adjustment associated to Argentinean subsidiaries for an amount of Ps. (5,956,256).
[10] | Discontinued operations.
[11] | 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.
[12] | The construction in progress includes fixed and mobile network installations, as well as satellite and fiber optic developments that are in the process of being installed

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