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Basis of Preparation of the Consolidated Financial Statements and Summary of Significant Accounting Policies and Practices - Summary of Analysis Of Single Amount Of Discontinued Operations Table (Detail)
$ in Thousands, $ in Millions
 12 Months Ended
Oct. 06, 2022
MXN ($)
Dec. 31, 2023
MXN ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
MXN ($)
Dec. 31, 2021
MXN ($)
Operating revenue:          
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:          
Income taxes   $ 34,544,003 $ 2,045 46,044,089 32,717,477
Net profit (loss) of the period from discontinued operations       $ (6,719,015) 124,235,942
Joint ventures [member] | Discontinued operations [member]          
Operating revenue:          
Service revenues $ 10,500,087       17,276,464
Sales of equipment 2,626,823       4,508,925
Operating revenues 13,126,910       21,785,389
Total costs and expenses 14,954,526       22,892,415
Operating income (loss) (1,827,616)       (1,107,026)
Financial cost (685,129)       (533,899)
Profit (loss) before income tax (2,512,745)       (1,640,925)
Tax expense:          
Income taxes (1,805,500)       (4,578,004)
Net profit (loss) of the period from discontinued operations $ (707,245)       $ 2,937,079