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Business Combinations, Acquisitions and Non-controlling Interest - Summary of Consolidated Statements of Comprehensive Income (Detail)
$ in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2022
MXN ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
MXN ($)
Dec. 31, 2020
MXN ($)
Disclosure of detailed information about business combination [line items]        
Operating costs and expenses $ 673,630,645 $ 34,697 $ 663,131,202 [1] $ 666,586,280 [1]
Operating income 170,870,752 8,802 167,556,250 [1] 148,812,807 [1]
Net income 81,506,395 4,198 196,326,114 [1] 51,026,957 [1]
Total comprehensive income 42,571,962 2,192 204,185,563 [1] 104,489,719 [1]
Net income attributable to:        
Equity holders of the parent 76,159,391   192,423,167 46,852,605
Non-controlling interest 5,347,004 275 3,902,947 [1] 4,174,352 [1]
Net income 81,506,395 4,198 196,326,114 [1] 51,026,957 [1]
Comprehensive income attributable to:        
Non-controlling interest 1,612,938 83 1,767,061 [1] 18,339,601 [1]
Total comprehensive income (loss) for the year 42,571,962 $ 2,192 204,185,563 [1] 104,489,719 [1]
Subsidiaries with material non-controlling interests [member]        
Disclosure of detailed information about business combination [line items]        
Operating revenues 105,956,057   113,838,487 111,472,191
Operating costs and expenses 89,800,536   98,346,896 98,312,325
Operating income 16,155,521   15,491,591 13,159,866
Net income 11,795,662   9,104,962 7,787,388
Total comprehensive income 6,127,362   7,790,499 12,103,406
Net income attributable to:        
Equity holders of the parent 6,000,942   4,629,816 3,986,412
Non-controlling interest 5,794,720   4,475,146 3,800,976
Net income 11,795,662   9,104,962 7,787,388
Comprehensive income attributable to:        
Equity holders of the parent 3,124,955   3,973,154 6,172,737
Non-controlling interest 3,002,407   3,817,345 5,930,669
Total comprehensive income (loss) for the year $ 6,127,362   $ 7,790,499 $ 12,103,406
[1] Restated for discontinued operations