Investments in Other Entities - Summary of Investment in Associates and Joint Ventures Accounted for under Equity Method (Detail) - MXN ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Disclosure of associates and joint ventures [line items]
Ownership Percentage	100.00%
Investments accounted for using equity method \| Investment in associates and joint ventures
Disclosure of associates and joint ventures [line items]
Investments accounted for using the equity method	$ 9,246	$ 8,452
Investments accounted for using equity method \| Promotora Industrial Azucarera, S.A. de C.V. ("PIASA")
Disclosure of associates and joint ventures [line items]
Ownership Percentage	36.40%	36.40%
Carrying Amount	$ 3,454	$ 3,632
Investments accounted for using equity method \| Jugos del valle, S.A.P.I. de C.V.
Disclosure of associates and joint ventures [line items]
Ownership Percentage	28.20%	29.30%
Carrying Amount	$ 2,831	$ 2,267
Investments accounted for using equity method \| Leao Alimentos e Bebidas, LTDA
Disclosure of associates and joint ventures [line items]
Ownership Percentage	25.10%	25.10%
Carrying Amount	$ 298	$ 388
Investments accounted for using equity method \| Industria Envasadora de Quertaro, S.A. de C.V. (IEQSA)
Disclosure of associates and joint ventures [line items]
Ownership Percentage	26.50%	26.50%
Carrying Amount	$ 215	$ 157
Investments accounted for using equity method \| Industria Mexicana de Reciclaje, S.A. de C.V. ("IMER")
Disclosure of associates and joint ventures [line items]
Ownership Percentage	35.00%	35.00%
Carrying Amount	$ 99	$ 100
Investments accounted for using equity method \| Alimentos de Soja S.A.U.
Disclosure of associates and joint ventures [line items]
Ownership Percentage	10.70%	10.70%
Carrying Amount	$ 23	$ 282
Investments accounted for using equity method \| Others
Disclosure of associates and joint ventures [line items]
Carrying Amount	$ 156	$ 107
Investments accounted for using equity method \| Compañía Panameña de Bebidas, S.A.P.I. de C.V.
Disclosure of associates and joint ventures [line items]
Ownership Percentage	50.00%	50.00%
Carrying Amount	$ 0	$ 0
Investments accounted for using equity method \| Dispensadoras de Café, S.A.P.I. de C.V.
Disclosure of associates and joint ventures [line items]
Ownership Percentage	50.00%	50.00%
Carrying Amount	$ 223	$ 189
Investments accounted for using equity method \| Fountain Agua Mineral, LTDA
Disclosure of associates and joint ventures [line items]
Ownership Percentage	50.00%	50.00%
Carrying Amount	$ 808	$ 752
Investments accounted for using equity method \| Planta Nueva Ecología De Tabasco, S.A. de C.V.
Disclosure of associates and joint ventures [line items]
Ownership Percentage	50.00%	50.00%
Carrying Amount	$ 1,139	$ 578

The amount of investments in associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method]

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The amount of investments in joint ventures accounted for using the equity method. [Refer: Joint ventures [member]; Investments accounted for using equity method]

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The amount of investments in subsidiaries, joint ventures and associates in an entity's separate financial statements. [Refer: Associates [member]; Joint ventures [member]; Subsidiaries [member]; Investments in subsidiaries reported in separate financial statements]

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The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]]

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