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Valuation of derivatives, interest cost from labor obligations and other financial items, net (Tables) | 12 Months Ended
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Dec. 31, 2020
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Schedule of Valuation of Derivatives and Other Financial Items | For the years ended December 31, 2018, 2019 and 2020, valuation of derivatives and other financial items are as follows:
|  | For the years ended December 31, |
|  | 2018 |  |  | 2019 |  |  | 2020 |
Controlling interest: |  |  |  |  |  |  |  |  |  |  |  |
(Loss) gain in valuation of derivatives, net |  | Ps. | (4,686,407 | ) |  | Ps. | 4,432,023 |  |  | Ps. | 12,378,193 |
Capitalized interest expense (Note 10 b) |  |  | 2,020,288 |  |  |  | 2,233,358 |  |  |  | 1,771,613 |
Commissions |  |  | (1,901,473 | ) |  |  | (2,820,477 | ) |  |  | (1,135,082 | )
Interest cost of labor obligations (Note 18) |  |  | (9,968,526 | ) |  |  | (11,377,054 | ) |  |  | (13,105,693 | )
Interest expense on taxes |  |  | (555,921 | ) |  |  | (516,522 | ) |  |  | (59,032 | )
Dividend received (Note 4) |  |  | 2,605,333 |  |  |  | 1,773,336 |  |  |  | 2,122,826 |
Gain on net monetary positions |  |  | 4,429,145 |  |  |  | 4,267,194 |  |  |  | 3,262,512 |
Other financial cost |  |  | (2,118,755 | ) |  |  | (5,067,200 | ) |  |  | (3,944,229 | )
Total |  | Ps. | (10,176,316 | ) |  | Ps. | (7,075,342 | ) |  | Ps. | 1,291,108 |

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