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Investment (Details) $ in Millions, $ in Millions | Dec. 31, 2021 USD ($) | Dec. 31, 2021 MXN ($) | Dec. 31, 2020 MXN ($)
--- | --- | --- | ---
Investments |  |  |
Total investments | $ 1,190 | $ 24,415 | $ 662
Corporate Debt Securities | Fixed rate debt |  |  |
Investments |  |  |
Acquisition cost |  | 24,396 | 658
Accrued interest |  | $ 19 | $ 4

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