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Income Taxes - Summary of Net Deferred Income Tax Liability (Detail) - MXN ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Major components of tax expense (income) [abstract] |  |  |
Balance at beginning of the period | $ (4,450) | $ (5,136) | $ (5,632)
Deferred tax provision for the period | 2,199 | 1,177 | 889
Change in the statutory rate | 0 | 0 | (82)
Effects in equity: |  |  |
Unrealized loss (gain) on derivative financial instruments | 693 | (236) | (591)
Cumulative translation effect and inflation adjustment | (16) | (279) | 107
Remeasurements of the net defined benefit liability | (318) | 24 | 173
Balance at end of the period | $ (1,892) | $ (4,450) | $ (5,136)

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- Definition The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to changes in the tax rate. [Refer: Accounting profit] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph c -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_c_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Remeasurements of the net defined employee benefit liability + References No definition available. + Details
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