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Employee Benefits - Liabilities for Employee Benefits (Details) - MXN ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | $ 8,760 | $ 6,920
Effect due to asset ceiling | Valora |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 208 |
Pension and Retirement Plans |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 5,428 | 4,402
Pension and Retirement Plans | Discontinued operations |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 0 | (195)
Pension and Retirement Plans | Defined benefit obligation |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 17,866 | 15,560
Pension and Retirement Plans | Plan assets |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | (16,227) | (14,061)
Pension and Retirement Plans | Effect due to asset ceiling |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 3,789 | 3,098
Seniority Premiums |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 2,846 | 2,058
Seniority Premiums | Discontinued operations |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 0 | (235)
Seniority Premiums | Defined benefit obligation |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 2,972 | 2,416
Seniority Premiums | Plan assets |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | (126) | (123)
Post-Retirement Medical Services |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 486 | 460
Post-Retirement Medical Services | Discontinued operations |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 0 | (49)
Post-Retirement Medical Services | Defined benefit obligation |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | 594 | 604
Post-Retirement Medical Services | Plan assets |  |
Disclosure of defined benefit plans [line items] |  |
Defined benefit obligation (plan funds) | $ (108) | $ (95)

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 140 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_140_a&doctype=Standard -URIDate 2024-03-27 + Details
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