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Financial Instruments - Net Effects of Expired Contracts That Met Hedging Criteria (Details) - Derivative Contract Met Hedging Criteria - MXN ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Cross-currency swaps | Interest expense |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Net effects of expired contracts |  | $ (109) | $ 199
Cross-currency swaps | Foreign exchange |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Net effects of expired contracts |  | 1,212 | 480
Interest rate swap | Interest expense |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Net effects of expired contracts |  | (163) | 515
Forward agreements to purchase foreign currency | Foreign exchange |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Net effects of expired contracts | $ 41 | (167) | (116)
Forward agreements to purchase foreign currency | Cost of sales |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Net effects of expired contracts | (788) | 839 | (163)
Commodity price contracts | Cost of sales |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Net effects of expired contracts | $ 1,245 | (129) | (391)
Options to purchase foreign currency | Cost of sales |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Net effects of expired contracts |  | 8 | $ (63)
Treasury Locks | Interest expense |  |  |
Disclosure of detailed information about hedges [line items] |  |  |
Net effects of expired contracts |  | $ 153 |

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- Definition The gain (loss) attributable to expired derivative contracts recognized in profit or loss during the period. + References No definition available. + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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