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Financial Instruments - Outstanding Forward Agreements to Purchase Foreign Currency (Detail) - MXN ($)
Dec. 31, 2023
Dec. 31, 2022
Disclosure of detailed information about financial instruments [line items]    
Asset $ 96,000,000 $ 591,000,000
Forward agreements to purchase foreign currency | Less than one year    
Disclosure of detailed information about financial instruments [line items]    
Notional Amount 10,700,000,000 10,778,000,000
Derivatives financial liabilities (assets) (550,000,000) (397,000,000)
Asset $ 36,000,000 $ 61,000,000