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Non Controlling Interest in Consolidated Subsidiaries - Summary of Non Controlling Interest in Consolidated Subsidiaries (Detail) - MXN ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
Disclosure of non controlling interest in consolidated subsidiaries [Line Items] |  |  |  |
Non-controlling interests | $ 6,022 | $ 5,583 | $ 6,751 | $ 6,806
Mexico |  |  |  |
Disclosure of non controlling interest in consolidated subsidiaries [Line Items] |  |  |  |
Non-controlling interests | 5,200 | 4,823 | 5,671 |
Colombia |  |  |  |
Disclosure of non controlling interest in consolidated subsidiaries [Line Items] |  |  |  |
Non-controlling interests | 19 | 22 | 21 |
Brazil |  |  |  |
Disclosure of non controlling interest in consolidated subsidiaries [Line Items] |  |  |  |
Non-controlling interests | $ 803 | $ 738 | $ 1,059 |

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- Definition The amount of equity in a subsidiary not attributable, directly or indirectly, to a parent. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph 12 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_12_f&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 54 -Subparagraph q -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_q&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 10 -IssueDate 2021-01-01 -Paragraph 22 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=10&code=ifrs-tx-2021-en-r&anchor=para_22&doctype=Standard -URIDate 2021-03-24 + Details
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