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Trade Receivable, Net - Summary of Changes in Allowance for Expected Credit Losses (Detail) - Accumulated impairment - Loans to consumers - MXN ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of Trade and Other Receivables [Line Items] |  |  |
Balance at the beginning of the year | $ 577 | $ 538 | $ 531
Charges and write-offs of uncollectible accounts | 170 | 23 | 38
Effects of changes in foreign exchange rates | 5 | (13) | (45)
Balance at the end of the year | 869 | 577 | 538
Increase (decrease) through adjustments arising from passage of time, allowance account for credit losses of financial assets | $ 117 | $ 29 | $ 14

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