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Investments in Other Entities - Summary of Investments in Other Entities (Detail) - MXN ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Investments accounted for using equity method | Investment in associates and joint ventures    
Disclosure of investments in associates and other [line items]    
Investments accounted for using the equity method $ 9,246 $ 8,452