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Inventories, Net - Summary of Analysis of Inventories (Detail)
$ in Thousands, $ in Millions
Dec. 31, 2021
MXN ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
MXN ($)
Classes of current inventories [abstract]      
Mobile phones, accessories, computers, TVs, cards and other materials $ 26,131,521   $ 33,763,086
Less: Reserve for obsolete and slow-moving inventories (1,946,211)   (3,385,647)
Total $ 24,185,310 $ 1,175 $ 30,377,439