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Basis of Preparation of the Unaudited Interim Condensed Consolidated Financial Statements and Summary of Significant Accounting Policies and Practices - Summary of Analysis Of Single Amount Of Discontinued Operations Table (Detail) - MXN ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Revenue [abstract]    
Revenue services $ 521,859,211 $ 532,404,944 [1]
Sales of equipment 93,441,043 96,134,423 [1]
Operating revenues 615,300,254 628,539,367 [1]
Total costs and expenses 237,179,459 245,607,587 [1]
Operating income 125,975,990 126,185,361 [1]
Profit before income tax 90,775,292 99,744,596 [1]
Tax expense:    
Income taxes 29,112,504 35,657,332 [1]
Net loss of the period of discontinued operations $ 0 2,671,630 [1]
Joint ventures [member] | Discontinued operations [member]    
Revenue [abstract]    
Revenue services   10,500,088
Sales of equipment   2,626,823
Operating revenues   13,126,911
Total costs and expenses   14,954,526
Operating income   (1,827,615)
Financial costs   (685,124)
Profit before income tax   (2,512,739)
Tax expense:    
Income taxes   (1,805,500)
Net loss of the period of discontinued operations   $ (707,239)
[1] Restated for discontinued operations.