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Financial Instruments - Cross Currency Swaps (Details) - MXN ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | $ 52,369 | $ 79,088
2024 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 10,052 |
2025 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Fair value Liability | 72 | 0
2027 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 4,223 |
2028 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 8,685 |
Currency swap contract | 2024 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 954 | 27,804
Fair value Liability | 35 | 7
Fair Value Asset | 103 | 9,435
Currency swap contract | 2025 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 49,834 | 497
Fair value Liability | 2 | 3
Fair Value Asset | 119 | 247
Currency swap contract | 2026 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 6,045 | 1,010
Fair value Liability | 1,017 | 0
Fair Value Asset | 98 | 385
Currency swap contract | 2027 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 8,949 | 5,971
Fair value Liability | (1,391) | (924)
Fair Value Asset | 9 | 364
Currency swap contract | 2028 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 6,009 | 17,809
Fair value Liability | 0 | (689)
Fair Value Asset | 89 | 95
Currency swap contract | 2029 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 20 | 14,620
Fair value Liability | 0 | 0
Fair Value Asset | 337 | 1,664
Currency swap contract | 2030 |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 13,633 | 3,679
Fair value Liability | (803) | (104)
Fair Value Asset | 0 | 110
Currency swap contract | Year Seven and Eight |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 845 |
Fair value Liability | (51) |
Fair Value Asset | 0 |
Currency swap contract | Year Nine |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 4,931 |
Fair value Liability | 0 |
Fair Value Asset | 117 |
Currency swap contract | Year Ten and Eleven |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 10,000 | 10,000
Fair value Liability | (3,809) | (2,203)
Fair Value Asset | 0 | 0
Currency swap contract | Between Twelve and Twenty Years |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 5,398 | 8,869
Fair value Liability | 0 | 0
Fair Value Asset | 1,877 | $ 505
Currency swap contract | Between Twenty One and Twenty Six Years |  |
Disclosure of detailed information about financial instruments [line items] |  |
Face amount | 3,471 |
Fair value Liability | 0 |
Fair Value Asset | $ 1,235 |

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