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Post-employment Benefits - Fair value plan assets (Details) - MXN ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Plan assets measured at fair value |  |  |
Post-employment benefit liability | $ 772,482 | $ 733,049 | $ 771,468
Plan assets |  |  |
Plan assets measured at fair value |  |  |
Post-employment benefit liability | (431,982) | (474,479) | $ (505,765)
Plan assets | Recurring basis |  |  |
Plan assets measured at fair value |  |  |
Mutual funds (fixed rate instruments) | 25,095 | 23,703 |
Money market securities | 207,910 | 238,556 |
Total investment assets | 419,996 | 460,808 |
Cash management | 11,986 | 13,671 |
Post-employment benefit liability | 431,982 | 474,479 |
Plan assets | Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Plan assets measured at fair value |  |  |
Mutual funds (fixed rate instruments) | 25,095 | 23,703 |
Money market securities | 207,910 | 238,556 |
Total investment assets | 419,996 | 460,808 |
Post-employment benefit liability | 419,996 | 460,808 |
Plan assets | Recurring basis | Trading equity securities - Common stock |  |  |
Plan assets measured at fair value |  |  |
Equity instruments | 21,236 | 34,851 |
Plan assets | Recurring basis | Trading equity securities - Common stock | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Plan assets measured at fair value |  |  |
Equity instruments | 21,236 | 34,851 |
Plan assets | Recurring basis | Other equity securities |  |  |
Plan assets measured at fair value |  |  |
Equity instruments | 165,755 | 163,698 |
Plan assets | Recurring basis | Other equity securities | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Plan assets measured at fair value |  |  |
Equity instruments | $ 165,755 | $ 163,698 |

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- Definition The amount cash and cash equivalents contribute to the fair value of defined benefit plan assets. [Refer: Cash and cash equivalents; Plan assets, at fair value; Defined benefit plans [domain]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 142 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_142_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount instruments representing debt (rather than equity) contribute to the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [domain]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 142 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_142_c&doctype=Standard -URIDate 2024-03-27 + Details
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