XML 188 R106.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Right-of-use assets and Lease liabilities - Future Minimum Finance Lease Payable (Details) $ in Millions | Dec. 31, 2018 USD ($)
--- | ---
Disclosure of maturity analysis of lease payments [Line Items] |
Total minimum lease liabilities | $ 180
Less future finance charges | (91)
Present value of minimum lease payments | 89
Not later than one year [member] |
Disclosure of maturity analysis of lease payments [Line Items] |
Total minimum lease liabilities | 0
Between one and five years [member] |
Disclosure of maturity analysis of lease payments [Line Items] |
Total minimum lease liabilities | 27
Later than five years [member] |
Disclosure of maturity analysis of lease payments [Line Items] |
Total minimum lease liabilities | $ 153

X
- Definition [Line Items] for Disclosure of maturity analysis of lease payments [Table] + References No definition available. + Details
Name: | alc_DisclosureofmaturityanalysisofleasepaymentsLineItems
Namespace Prefix: | alc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Future Finance Charge On Finance Lease + References No definition available. + Details
Name: | alc_FutureFinanceChargeOnFinanceLease
Namespace Prefix: | alc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Minimum Finance Lease Payments Payable + References No definition available. + Details
Name: | alc_MinimumFinanceLeasePaymentsPayable
Namespace Prefix: | alc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Minimum Finance Lease Payments Payable, At Present Value + References No definition available. + Details
Name: | alc_MinimumFinanceLeasePaymentsPayableAtPresentValue
Namespace Prefix: | alc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_NotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |