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v3.21.1

Accounts payable, accrued liabilities and asset retirement obligations (Tables) | 12 Months Ended
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Dec. 31, 2020
Text block [abstract] |
Components Account Payable and Accrued Liabilities | a) The components of the captions account payable and accrued liabilities are as follows:
|  | At December 31, |
|  | 2019 |  |  | 2020 |
Suppliers |  |  | Ps.113,370,716 |  |  |  | Ps.74,285,881 |
Sundry creditors |  |  | 90,849,195 |  |  |  | 101,406,307 |
Interest payable |  |  | 8,057,170 |  |  |  | 7,661,762 |
Guarantee deposits from customers |  |  | 1,467,835 |  |  |  | 1,386,645 |
Dividends payable |  |  | 2,367,908 |  |  |  | 2,254,877 |
Total |  |  | Ps.216,112,824 |  |  |  | Ps.186,995,472 |
Summary of Balance of Accrued Liabilities | b) The balance of accrued liabilities at December 31, 2019 and 2020 are as follows:
|  | At December 31, |
|  | 2019 |  |  | 2020 |
Current liabilities |  |  |  |  |  |  |  |
Direct employee benefits payable |  | Ps. | 17,991,283 |  |  | Ps. | 18,965,160 |
Contingencies |  |  | 34,379,969 |  |  |  | 31,326,691 |
Total |  | Ps. | 52,371,252 |  |  | Ps. | 50,291,851 |
Summary of Movements in Contingent Liabilities | The movements in contingencies for the years ended December 31, 2019 and 2020 are as follows:
|  | Balance at December 31, 2018 |  |  | Business combination |  |  | Effect of translation |  |  | Increase of the year |  |  | Applications |  |  | Reclassification by adoption of IFRIC 23 |  |  | Balance at December 31, 2019 |
|  | Payments |  |  | Reversals |
Contingencies |  | Ps. | 40,281,573 |  |  | Ps. | 1,378,611 |  |  | Ps. | (2,302,058 | ) |  | Ps. | 6,410,975 |  |  | Ps. | (5,483,327 | ) |  | Ps. | (1,833,518 | ) |  | Ps. | (4,072,287 | ) |  | Ps. | 34,379,969 |
|  | Balance at December 31, 2019 |  |  | Business combination |  |  | Effect of translation |  |  | Increase of the year |  |  | Applications |  |  | Balance at December 31, 2020 |
|  | Payments |  |  | Reversals |
Contingencies |  | Ps. | 34,379,969 |  |  | Ps. | 292 |  |  | Ps. | (4,290,753 | ) |  | Ps. | 7,442,292 |  |  | Ps. | (3,214,407 | ) |  | Ps. | (2,990,702 | ) |  | Ps. | 31,326,691 |
Summary of Movements in Asset Retirement Obligations | c) The movements in the asset retirement obligations for the years ended December 31, 2019 and 2020 are as follows:
|  | Balance at December 31, 2018 |  |  | Business combination |  |  | Effect of translation |  |  | Increase of the year |  |  | Applications |  |  | Balance at December 31, 2019 |
|  | Payments |  |  | Reversals |
Asset retirement obligations |  | Ps. | 15,971,601 |  |  | Ps. | 293,548 |  |  | Ps. | (1,339,033 | ) |  | Ps. | 1,600,197 |  |  | Ps. | (128,842 | ) |  | Ps. | (580,727 | ) |  | Ps. | 15,816,744 |
|  | Balance at December 31, 2019 |  |  | Business combination |  |  | Effect of translation |  |  | Increase of the year |  |  | Applications |  |  | Balance at December 31, 2020 |
|  | Payments |  |  | Reversals |
Asset retirement obligations |  | Ps. | 15,816,744 |  |  | Ps. | — |  |  | Ps. | 374,418 |  |  | Ps. | 2,412,908 |  |  | Ps. | (593,644 | ) |  | Ps. | (122,435 | ) |  | Ps. | 17,887,991 |

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