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Taxes - Tax Loss Carryforwards, Maturity (Details) - MXN ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | $ 31,292 | $ 42,813 | $ 31,323
Adjustments in deferred income tax assets | $ 2,500 | $ 1,547 |
NOLs usage limit | 30.00% |  |
2025 |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | $ 1,875 |  |
Year two |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | 1,616 |  |
Year three |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | 1,634 |  |
Year four |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | 1,604 |  |
Year five |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | 1,491 |  |
2030 |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | 2,996 |  |
2032 |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | 3 |  |
2032 |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | 563 |  |
2033 |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | 46 |  |
2034 and thereafter |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | 11,101 |  |
No expiration (Brazil and Colombia) |  |  |
Disclosure of income taxes [Line Items] |  |  |
Unused tax losses for which no deferred tax asset recognised | $ 8,363 |  |

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- Definition The amount of unused tax losses for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_e&doctype=Standard -URIDate 2024-03-27 + Details
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