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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 Net profit for the year from discontinued operations (Detail) - MXN ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Operating revenues:    
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]
Income tax 29,112,504 35,657,332 [1]
Net loss of the period of discontinued operations $ 0 2,671,630 [1]
Discontinued operations [member] | Claro Panama [Member]    
Operating revenues:    
Revenue services   1,210,109
Sales of equipment   206,595
Operating revenues   1,416,704
Total costs and expenses   1,403,311
Operating income   13,393
Financial costs   (39,538)
Gain on disposal of discontinued operations   3,405,014
Profit before income tax   3,378,869
Income tax   0
Net loss of the period of discontinued operations   $ 3,378,869
[1] Restated for discontinued operations.