XML 30 R17.htm IDEA: XBRL DOCUMENT
v3.23.2

Subsequent events | 6 Months Ended
--- | ---
Jun. 30, 2023
Events After Reporting Period [Abstract] |
Subsequent events | Subsequent eventsThese unaudited Condensed Consolidated Interim Financial Statements were authorized for issue by the Audit & Risk Committee on August 15, 2023.

X
- Definition Events After Reporting Period [Abstract] + References No definition available. + Details
Name: | alc_EventsAfterReportingPeriodAbstract
Namespace Prefix: | alc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for events after the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 10 -IssueDate 2022-03-24 -Section Disclosure -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=10&code=ifrs-tx-2022-en-r&doctype=Standard&dita_xref=IAS10_g17-22_IAS10_g17-22_TI -URIDate 2022-03-24 + Details
Name: | ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration