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Other Current Assets and Other Current Financial Assets - Summary of Prepaid Expenses (Detail) - MXN ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Prepaid expenses [abstract] |  |
Advances for inventories | $ 1,240 | $ 1,311
Advertising and promotional expenses paid in advance | 89 | 509
Advances to service suppliers | 0 | 1
Prepaid insurance | 25 | 24
Others | 0 | 31
Total | $ 1,354 | $ 1,876

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- Definition The amount of current advances made to suppliers before goods or services are received. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The amount recognised as a current asset for expenditures made prior to the period when the economic benefit will be realised. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Advances for inventories. + References No definition available. + Details
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Balance Type: | debit
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- Definition Other prepaid expenses. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Prepaid advertising and promotional expenses. + References No definition available. + Details
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Namespace Prefix: | kof_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Prepaid expenses. + References No definition available. + Details
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- Definition Prepaid insurance 1. + References No definition available. + Details
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Namespace Prefix: | kof_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant