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Investments in Financial Instruments - Available-for-sale financial assets (Details) - MXN ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Reconciliation for all assets and liabilities measured at fair value |  |
Balance at beginning of year | $ 7,002,712 |
Balance at the end of year | 6,076,079 | $ 7,002,712
Warrants issued by UH II |  |
Reconciliation for all assets and liabilities measured at fair value |  |
Foreign exchange gain (loss) derived from the hedged Warrants issued by UHI and investments in Open-Ended Fund |  | 5,511,412
Open Ended Fund |  |
Reconciliation for all assets and liabilities measured at fair value |  |
Foreign exchange gain (loss) derived from the hedged Warrants issued by UHI and investments in Open-Ended Fund | 99,673 | 471,097
FVOCIL |  |
Reconciliation for all assets and liabilities measured at fair value |  |
Balance at beginning of year | 7,001,859 | 44,265,046
Investments | 1,118,178 | 602,446
Disposition of investments | (2,015,390) | (3,159,970)
Change in fair value in other comprehensive income (loss) | (33,791) | (17,317,964)
Warrants exercised for common stock of UHI |  | (17,387,699)
Balance at the end of year | 6,070,856 | 7,001,859
FVOCIL | Warrants issued by UH II |  |
Reconciliation for all assets and liabilities measured at fair value |  |
Balance at beginning of year |  | 33,775,451
Change in fair value in other comprehensive income (loss) |  | (16,387,752)
Warrants exercised for common stock of UHI |  | (17,387,699)
FVOCIL | Open Ended Fund |  |
Reconciliation for all assets and liabilities measured at fair value |  |
Balance at beginning of year | 1,135,803 | 4,688,202
Disposition of investments | (258,956) | (3,159,970)
Change in fair value in other comprehensive income (loss) | 68,329 | (392,429)
Balance at the end of year | 945,176 | 1,135,803
FVOCIL | Publicly traded equity instruments |  |
Reconciliation for all assets and liabilities measured at fair value |  |
Balance at beginning of year | 5,397,504 | 5,751,001
Disposition of investments | (1,756,434) |
Change in fair value in other comprehensive income (loss) | (123,359) | (353,497)
Balance at the end of year | 3,517,711 | 5,397,504
FVOCIL | Other Equity Instruments |  |
Reconciliation for all assets and liabilities measured at fair value |  |
Balance at beginning of year | 468,552 | 50,392
Investments | 1,118,178 | 602,446
Change in fair value in other comprehensive income (loss) | 21,239 | (184,286)
Balance at the end of year | $ 1,607,969 | $ 468,552

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- Definition The gains (losses) on hedged items in fair value hedges, which are attributable to the hedged risk. [Refer: Fair value hedges [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2023-01-01 -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 24 -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_24_a_ii&doctype=Standard&book=b -URIDate 2021-03-24 + Details
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- Definition The decrease in the fair value measurement of assets resulting from sales. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2021-01-01 -Paragraph 93 -Subparagraph e -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_e_iii&doctype=Standard -URIDate 2021-03-24 + Details
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