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Dividends - Additional Information (Detail) - MXN ($) $ in Millions	7 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Mar. 14, 2019	Mar. 09, 2018
Statement [line items]
Dividends declared and paid	$ 7,437	$ 7,038
Percentage of declared dividend paid	50.00%	50.00%
Diviedends paid to non controlling interest	$ 3,925
Dividend Payment [Member]
Statement [line items]
Percentage of declared dividend to be paid			50.00%	50.00%

X

- Definition

The amount of dividends recognised as distributions to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 107
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_107&doctype=Standard
-URIDate 2019-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of dividends paid to non-controlling interests. [Refer: Non-controlling interests]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2019-01-01
-Paragraph B10
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_B10_a&doctype=Appendix&subtype=B
-URIDate 2019-03-27

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X

- Definition

Percentage of declared dividend paid.

+ References

No definition available.

+ Details

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Namespace Prefix:	kof_
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X

- Definition

Percentage of declared dividend unpaid.

+ References

No definition available.

+ Details

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Namespace Prefix:	kof_
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Balance Type:	na
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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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X

- Details

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