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Leases - Additional information (Detail) - MXN ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Statement [Line Items] |  |  |
Interest expense on lease liabilities | $ 4,774 |  |
Expense relating to leases of low-value assets for which recognition exemption has been used | 430 |  |
Cash Flows | 16,869 | $ 1,027 | $ 4,531
Financial leases [member] |  |  |
Statement [Line Items] |  |  |
Cash Flows | $ 8,848 | $ 26 | $ 8
Retail Stores [Member] |  |  |
Statement [Line Items] |  |  |
Operating Lease Term | 15 years |  |
Office Space [Member] | Top of range [member] |  |  |
Statement [Line Items] |  |  |
Operating Lease Term | 5 years |  |
Office Space [Member] | Bottom of range [member] |  |  |
Statement [Line Items] |  |  |
Operating Lease Term | 3 years |  |
IT Equipment [Member] | Top of range [member] |  |  |
Statement [Line Items] |  |  |
Operating Lease Term | 1 year |  |
IT Equipment [Member] | Bottom of range [member] |  |  |
Statement [Line Items] |  |  |
Operating Lease Term | 3 years |  |

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- Definition Operating lease term. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of the expense relating to leases of low-value assets accounted for applying paragraph 6 of IFRS 16. This expense shall not include the expense relating to short-term leases of low-value assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_d&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The increase (decrease) in liabilities arising from financing activities resulting from financing cash flows. [Refer: Cash flows from (used in) financing activities; Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2019-01-01 -Paragraph 44B -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_44B_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of interest expense on lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_b&doctype=Standard -URIDate 2019-03-27 + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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