XML 69 R49.htm IDEA: XBRL DOCUMENT
v3.25.2

COMMITMENTS AND CONTINGENCIES - Aircraft-Related Commitments (Details) | Jun. 30, 2025 aircraft
--- | ---
Firm Orders |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 86
Options and Other Rights |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 93
B737 | Firm Orders |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 75
B737 | Options and Other Rights |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 88
B787-9 | Firm Orders |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 8
B787-9 | Options and Other Rights |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 5
E175 | Firm Orders |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 3
E175 | Options and Other Rights |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 0

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-4 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-4 + Details
Name: | us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum number of units that must be purchased, in connection with an unconditional purchase obligation that has not been recognized for financial reporting purposes. + References No definition available. + Details
Name: | us-gaap_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis=alk_FirmAircraftCommitmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis=alk_AircraftPurchaseOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_AircraftTypeAxis=srt_B737MaxMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_AircraftTypeAxis=alk_B7879Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_AircraftTypeAxis=alk_E175Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |