XML 101 R55.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Significant Accounting Policies - Additional Information (Detail) - Venezuela [member]	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Disclosure of changes in accounting estimates [line items]
Cumulative inflation percentage	100.00%	100.00%
Cumulative inflation period	Three years	Three years

X

- Definition

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

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfChangesInAccountingEstimatesLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Effect of cumulative inflation percentage recognised.

+ References

No definition available.

+ Details

Name:	kof_EffectOfCumulativeInflationPercentageRecognised
Namespace Prefix:	kof_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Effect of cumulative inflation recognition period.

+ References

No definition available.

+ Details

Name:	kof_EffectOfCumulativeInflationRecognitionPeriod
Namespace Prefix:	kof_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=country_VE
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: