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Inventories - Summary of Inventories (Detail)
$ in Millions, $ in Millions
Dec. 31, 2019
MXN ($)
Dec. 31, 2019
USD ($)
 [2]
Dec. 31, 2018
MXN ($)
Classes of current inventories [abstract]      
Finished products $ 32,853   $ 27,145
Raw materials 5,331   5,363
Spare parts 1,198   1,362
Work in process 113   225
Inventories in transit 1,528   1,591
Total inventories $ 41,023 [1] $ 2,175 $ 35,686
[1] The Company initially adopted IFRS 16 at January 1st, 2019 using the modified retrospectively approach under which the comparative information is not restated. – See Note 2.4.1
[2] Convenience translation to U.S. dollars ($) – See Note 2.2.3