XML 31 R17.htm IDEA: XBRL DOCUMENT
v3.21.2

Equity-based compensation | 6 Months Ended
--- | ---
Jun. 30, 2021
Share-Based Payment Arrangements [Abstract] |
Equity-based compensation | Equity-based compensation As described in Note 24 to the Consolidated Financial Statements in the Form 20-F, Alcon has various equity incentive plans, under which Alcon may grant awards in the form of restricted stock units ("RSUs"), performance-based restricted stock units ("PSUs"), restricted stock awards ("RSAs"), or any other form of award at the discretion of the Board. Certain associates in select countries may also participate in share ownership savings plans. The below table summarizes unvested share movements for all Alcon equity-based incentive plans for the six months June 30, 2021 and 2020:
|  | Six months ended June 30
(shares in millions) |  | 2021 |  | 2020
Unvested at January 1 |  | 5.4 |  |  | 4.7 |
Granted |  | 1.8 |  |  | 2.0 |
Vested |  | (1.1) |  |  | (1.0) |
Forfeited |  | (0.2) |  |  | (0.2) |
Unvested at June 30 |  | 5.9 |  |  | 5.5 |

X
- Definition Share-Based Payment Arrangements [Abstract] + References No definition available. + Details
Name: | alc_ShareBasedPaymentArrangementsAbstract
Namespace Prefix: | alc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for share-based payment arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 44 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_44&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration