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Financial Instruments - Summary of Maturity Analysis for Non-derivative and Derivative Financial Liabilities (Details) - Liquidity risk - MXN ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Disclosure Of Maturity Analysis For Non-derivative And Derivative Financial Liabilities [line items] |  |
Percentage of outstanding consolidated total indebtedness at the level of its sub-holding companies | 55.00% | 55.00%
Notes and bonds | $ 176,039 |
Loans from Banks | 9,994 |
Derivative financial liabilities | (9,471) |
Year two |  |
Disclosure Of Maturity Analysis For Non-derivative And Derivative Financial Liabilities [line items] |  |
Notes and bonds | 4,306 |
Loans from Banks | 7,784 |
Derivative financial liabilities | (1,161) |
Year three |  |
Disclosure Of Maturity Analysis For Non-derivative And Derivative Financial Liabilities [line items] |  |
Notes and bonds | 16,326 |
Loans from Banks | 662 |
Derivative financial liabilities | (1,397) |
Year four |  |
Disclosure Of Maturity Analysis For Non-derivative And Derivative Financial Liabilities [line items] |  |
Notes and bonds | 11,498 |
Loans from Banks | 734 |
Derivative financial liabilities | (1,307) |
Year five |  |
Disclosure Of Maturity Analysis For Non-derivative And Derivative Financial Liabilities [line items] |  |
Notes and bonds | 18,382 |
Loans from Banks | 546 |
Derivative financial liabilities | (726) |
Six years and not later than then years |  |
Disclosure Of Maturity Analysis For Non-derivative And Derivative Financial Liabilities [line items] |  |
Notes and bonds | 7,627 |
Loans from Banks | 211 |
Derivative financial liabilities | (902) |
Six years and thereafter |  |
Disclosure Of Maturity Analysis For Non-derivative And Derivative Financial Liabilities [line items] |  |
Notes and bonds | 117,900 |
Loans from Banks | 57 |
Derivative financial liabilities | $ (3,978) |

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