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Valuation of derivatives interest cost from labor obligations and other financial items net, Valuation of Derivatives and Other Financial Items (Details) $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2024 MXN ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 MXN ($) | Dec. 31, 2022 MXN ($)
Valuation of derivatives, interest cost from labor obligations and other financial items, net [Abstract] |  |  |  |  |
Loss in valuation of derivatives, net |  | $ (2,141,802) |  | $ (10,268,520) | $ (28,639,687)
Capitalized interest expense |  | 1,622,958 |  | 1,442,077 | 1,514,654
Commissions |  | (1,787,308) |  | (1,190,435) | (1,061,278)
Interest cost of labor obligations |  | (14,116,698) |  | (13,573,881) | (12,376,939)
Contractual earn-out from business combination |  | 14,856 |  | 2,206,671 | 4,271,250
Interest expense on taxes |  | (938,834) |  | (220,983) | (190,822)
Recognized dividend income | [1] | 2,779,138 |  | 4,551,827 | 6,155,993
Loss on exchange of KPN shares |  | (2,566,239) |  | 0 | 0
Contractual compensation from business combination |  | 0 |  | (647,013) | 0
Loss from the acquisition of Claro Chile, SpA |  | (781,355) |  | 0 | 0
Impairment to notes receivable from joint venture |  | (4,594,792) |  | (12,184,562) | 0
Recycling valuation of VTR Bonds |  | 4,674,598 |  | 0 | 0
Impairment of joint venture |  | 0 |  | (4,677,782) | 0
Allowance of doubtful accounts | [2] | (1,324,469) |  | (1,051,288) | 0
Gain on net monetary positions |  | 27,387,169 | $ 1,351 | 9,321,480 | 11,538,061
Other finance costs | [3] | (2,608,382) |  | (522,259) | (327,451)
Total valuation of derivatives and other financial items |  | 5,618,840 |  | (26,814,668) | (19,116,219)
Dividends [Abstract] |  |  |  |  |
Dividends received |  | $ 2,779,138 |  | $ 4,590,313 | $ 5,426,370
[1] | Dividend received during 2022, 2023 and 2024 by, Ps. 5,426,370, Ps. 4,590,313, and Ps. 2,779,138 respectively.
[2] | This figure is related to certain uncollectible balances.
[3] | Excludes discontinued operations of Chile and Panama for the year ended 2022. (See note 2ac).

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