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Financial Risk Management - Liquidity Risk (Details) - MXN ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of nature and extent of risks arising from financial instruments |  |  |  |
Cash and cash equivalents | $ 29,058,093 | $ 27,452,265 | $ 32,068,291 | $ 38,734,949
Debt | 123,877,278 | 122,378,292 |  |
Lease liabilities | 9,292,351 | 9,363,520 |  |
Other notes payable |  | 1,324,063 |  |
Trade and other liabilities | 41,796,845 | 38,539,436 |  |
Interest on debt | 124,559,077 | 129,278,189 |  |
Interest on lease liabilities | 3,617,085 | 3,889,178 |  |
Interest on other notes payable |  | 5,938 |  |
2021 |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments |  |  |  |
Debt | 617,489 | 492,489 |  |
Lease liabilities | 1,277,754 | 1,257,766 |  |
Other notes payable |  | 1,324,063 |  |
Trade and other liabilities | 33,936,100 | 31,588,449 |  |
Interest on debt | 5,997,185 | 6,565,402 |  |
Interest on lease liabilities | 668,461 | 731,591 |  |
Interest on other notes payable |  | 5,938 |  |
12-36 Months |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments |  |  |  |
Debt | 8,985,404 | 8,852,893 |  |
Lease liabilities | 2,184,098 | 2,491,539 |  |
Trade and other liabilities | 4,078,823 | 3,426,610 |  |
Interest on debt | 15,177,002 | 16,351,837 |  |
Interest on lease liabilities | 1,169,317 | 1,417,722 |  |
36-60 Months |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments |  |  |  |
Debt | 21,969,580 | 13,500,000 |  |
Lease liabilities | 2,240,777 | 2,381,812 |  |
Trade and other liabilities | 644,830 | 1,035,998 |  |
Interest on debt | 13,256,713 | 14,404,394 |  |
Interest on lease liabilities | 853,741 | 984,003 |  |
Thereafter |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments |  |  |  |
Debt | 92,304,805 | 99,532,910 |  |
Lease liabilities | 3,589,722 | 3,232,403 |  |
Trade and other liabilities | 3,137,092 | 2,488,379 |  |
Interest on debt | 90,128,177 | 91,956,556 |  |
Interest on lease liabilities | $ 925,566 | $ 755,862 |  |

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- Definition The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_45&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B13 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_i&doctype=Standard -URIDate 2020-01-01 + Details
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