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Basis of Preparation of the Consolidated Financial Statements and Summary of Significant Accounting Policies and Practices - Summary of Net profit for the year from discontinued operations (Detail) $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2023 MXN ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 MXN ($) | Dec. 31, 2021 MXN ($)
Operating revenues: |  |  |  |
Service revenues | $ 689,154,325 | $ 40,794 | $ 712,985,548 | $ 694,300,431
Sales of equipment | 126,858,519 | 7,509 | 131,515,849 | 136,387,021
Operating revenues | 816,012,844 | 48,303 | 844,501,397 | 830,687,452
Total costs and expenses | 316,476,140 | 18,734 | 330,532,450 | 328,510,002
Operating income (loss) | 167,783,515 | 9,931 | 170,870,752 | 167,556,250
Profit (loss) before income tax | $ 115,333,645 | $ 6,827 | 134,269,499 | 104,807,649
Tax expense: |  |  |  |
Net profit (loss) of the period from discontinued operations |  |  | (6,719,015) | 124,235,942
Discontinued operations [member] | Tracfone Wireless Inc Tracfone [member] |  |  |  |
Operating revenues: |  |  |  |
Service revenues |  |  |  | 130,091,540
Sales of equipment |  |  |  | 22,160,481
Operating revenues |  |  |  | 152,252,021
Total costs and expenses |  |  |  | 134,495,316
Operating income (loss) |  |  |  | 17,756,705
Financial cost |  |  |  | (1,733)
Gain on disposal of discontinued operations |  |  |  | 132,821,709
Profit (loss) before income tax |  |  |  | 150,576,681
Tax expense: |  |  |  |
Related to pre-tax profit from the ordinary activities for the period |  |  |  | 2,571,541
Related to gain on disposal from discontinued operations |  |  |  | 26,294,422
Net profit (loss) of the period from discontinued operations |  |  |  | 121,710,718
Discontinued operations [member] | Claro Panama [Member] |  |  |  |
Operating revenues: |  |  |  |
Service revenues |  |  | 1,210,109 | 2,667,497
Sales of equipment |  |  | 206,595 | 394,534
Operating revenues |  |  | 1,416,704 | 3,062,031
Total costs and expenses |  |  | 1,403,311 | 3,378,614
Operating income (loss) |  |  | 13,393 | (316,583)
Financial cost |  |  | (39,538) | (89,974)
Gain on disposal of discontinued operations |  |  | 3,405,014 | 0
Profit (loss) before income tax |  |  | 3,378,869 | (406,557)
Tax expense: |  |  |  |
Related to pre-tax profit from the ordinary activities for the period |  |  | 0 | 5,297
Net profit (loss) of the period from discontinued operations |  |  | $ 3,378,869 | $ 411,854

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