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Financial Instruments - Summary of Net Effects of Expired Contracts Met Hedging Criteria (Detail) - MXN ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of net effects of expired contracts that met hedging criteria [line items] |  |  |
Interest Expense | $ (7,102) | $ (6,500) | $ (6,192)
Foreign exchange | (1,046) | (324) | 227
Derivatives designated as hedges | Cross currency swaps and interest rate swaps |  |  |
Disclosure of net effects of expired contracts that met hedging criteria [line items] |  |  |
Interest Expense | (392) | (1) | 0
Foreign exchange | (747) | (5) | 0
Derivatives designated as hedges | Forward agreements to purchase foreign currency |  |  |
Disclosure of net effects of expired contracts that met hedging criteria [line items] |  |  |
Net Effect Of Expired Contracts That Met Hedging Criteria On Cost Of Good Sold | (1,834) | (681) | (788)
Derivatives designated as hedges | Commodity price contracts |  |  |
Disclosure of net effects of expired contracts that met hedging criteria [line items] |  |  |
Net Effect Of Expired Contracts That Met Hedging Criteria On Cost Of Good Sold | $ 430 | $ 614 | $ 1,245

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- Definition The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Financial instruments, class [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 21 -IssueDate 2023-01-01 -Paragraph 52 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=21&code=ifrs-tx-2023-en-r&anchor=para_52_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 35 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_35&doctype=Standard -URIDate 2023-03-23 + Details
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