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Equity-based compensation | 6 Months Ended
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Jun. 30, 2024
Share-Based Payment Arrangements [Abstract] |
Equity-based compensation | Equity-based compensation As described in Note 23 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 ended June 30, 2024 and 2023:
|  | Six months ended June 30
(shares in millions) |  | 2024 |  | 2023
Unvested at January 1 |  | 4.9 |  |  | 4.8 |
Granted |  | 2.2 |  |  | 2.2 |
Vested |  | (1.7) |  |  | (1.8) |
Forfeited |  | (0.1) |  |  | (0.1) |
Unvested at June 30 |  | 5.3 |  |  | 5.1 |

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- Definition Share-Based Payment Arrangements [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for share-based payment arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 44 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_44&doctype=Standard -URIDate 2023-03-23 + Details
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