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Components of other comprehensive income (loss) - Summary of Movement on Components of Other Comprehensive Loss (Detail) $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2023 MXN ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 MXN ($) | Dec. 31, 2021 MXN ($)
Controlling interest: |  |  |  |
Unrealized gain (loss) on equity investments at fair value, net of deferred taxes | $ (967,609) | $ (57) | $ (4,707,276) | $ 4,560,869
Translation effect by discontinued operations |  |  | 5,193,281 | (829,163)
Asset's revaluation surplus net of deferred taxes | 868,456 |  |  |
Total equity attributable to equity holders of the parent [member] |  |  |  |
Controlling interest: |  |  |  |
Unrealized gain (loss) on equity investments at fair value, net of deferred taxes | (967,609) |  | (4,707,276) | 4,560,869
Translation effect of foreign entities | (37,399,680) |  | (31,086,965) | (4,837,206)
Translation effect by discontinued operations | 0 |  | 5,193,281 | (829,163)
Remeasurement of defined benefit plan, net of deferred taxes | (3,662,102) |  | (4,599,407) | 11,100,835
Asset's revaluation surplus net of deferred taxes | 497,628 |  |  |
Non-controlling interest of the items above | (3,885,410) |  | (3,734,066) | (2,135,886)
Other comprehensive income (loss) | $ (45,417,173) |  | $ (38,934,433) | $ 7,859,449

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- Definition The amount of other comprehensive income attributable to non-controlling interests. [Refer: Non-controlling interests; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_85&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of other comprehensive income, before tax, related to gains (losses) on remeasurements of defined benefit plans, which comprise actuarial gains and losses; the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset); and any change in the effect of the asset ceiling, excluding amounts included in net interest on the net defined benefit liability (asset). [Refer: Other comprehensive income; Defined benefit plans [member]; Plan assets [member]; Net defined benefit liability (asset)] [Contrast: Decrease (increase) in net defined benefit liability (asset) resulting from gain (loss) on remeasurement in other comprehensive income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 135 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_135_b&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 91 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_91_b&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_7&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of other comprehensive income, net of tax, related to gains (losses) from changes in the fair value of investments in equity instruments that the entity has designated at fair value through other comprehensive income applying paragraph 5.7.5 of IFRS 9. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 91 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_91_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_7&doctype=Standard -URIDate 2023-03-23 + Details
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