v3.26.1
SPECIAL ITEMS (Details) - USD ($)
$ in Millions
3 Months Ended
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Unusual or Infrequent Items, or Both [Abstract]
Special items, expenses
$ 42
$ 56
$ 77
$ 147
X
- Definition
Special Items - Net, Operating Expense
+ References
No definition available.
+ Details
Name:
alk_SpecialItemsNetOperatingExpense
Namespace Prefix:
alk_
Data Type:
xbrli:monetaryItemType
Balance Type:
debit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_ExtraordinaryAndUnusualItemsAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration