XML 57 R43.htm IDEA: XBRL DOCUMENT
v3.25.2

Condensed Consolidated Statements of Cash Flows - additional details - Depreciation, amortization, impairments and fair value adjustments (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2025 | Jun. 30, 2024
Disclosure of detailed information about property, plant and equipment [line items] |  |
Total | $ 529 | $ 606
Property, plant & equipment |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Total | 201 | 191
Right-of-use assets |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Total | 43 | 40
Intangible assets |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Total | 428 | 376
Other non-current assets |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Total | $ (143) | $ (1)

X
- Definition Adjustments For Depreciation, Amortisation, Impairment Loss (Reversal Of Impairment Loss) Recognised In Profit Or Loss, And Fair Value Losses (Gains) + References No definition available. + Details
Name: | alc_AdjustmentsForDepreciationAmortisationImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossAndFairValueLossesGains
Namespace Prefix: | alc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_PropertyPlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_RightofuseAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_IntangibleAssetsOtherThanGoodwillMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=alc_OtherNoncurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |