XML 66 R55.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Commitments and Contingencies - Summary of Firm Orders (Details) | 3 Months Ended
--- | ---
Mar. 31, 2024 aircraft
Firm Orders |
2024 | 85
2025 | 74
2026 | 85
2027 | 90
2028 | 90
2029 | 90
2030 | 90
2031 | 90
Total number of aircrafts ordered | 694
-7 Firm Orders |
Firm Orders |
2024 | 27
2025 | 40
2026 | 59
2027 | 19
2028 | 15
2029 | 38
2030 | 45
2031 | 45
Total number of aircrafts ordered | 288
-8 Firm Orders |
Firm Orders |
2024 | 58
2025 | 19
2026 | 0
2027 | 46
2028 | 50
2029 | 34
2030 | 0
2031 | 0
Total number of aircrafts ordered | 207
Number of aircraft deliveries | 5
Number of aircrafts to be delivered | 20
-7 or -8 Options |
Firm Orders |
2024 | 0
2025 | 15
2026 | 26
2027 | 25
2028 | 25
2029 | 18
2030 | 45
2031 | 45
Total number of aircrafts ordered | 199

X
- Definition Long-Term Purchase Commitment, Aircraft Deliveries + References No definition available. + Details
Name: | luv_LongTermPurchaseCommitmentAircraftDeliveries
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Aircrafts Ordered + References No definition available. + Details
Name: | luv_NumberOfAircraftsOrdered
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Aircrafts Ordered, Remainder Of Fiscal Year + References No definition available. + Details
Name: | luv_NumberOfAircraftsOrderedRemainderOfFiscalYear
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Aircrafts Ordered, Year Five + References No definition available. + Details
Name: | luv_NumberOfAircraftsOrderedYearFive
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Aircrafts Ordered, Year Four + References No definition available. + Details
Name: | luv_NumberOfAircraftsOrderedYearFour
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Aircrafts Ordered, Year One + References No definition available. + Details
Name: | luv_NumberOfAircraftsOrderedYearOne
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Aircrafts Ordered, Year Seven + References No definition available. + Details
Name: | luv_NumberOfAircraftsOrderedYearSeven
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Aircrafts Ordered, Year Six + References No definition available. + Details
Name: | luv_NumberOfAircraftsOrderedYearSix
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Aircrafts Ordered, Year Three + References No definition available. + Details
Name: | luv_NumberOfAircraftsOrderedYearThree
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Aircrafts Ordered, Year Two + References No definition available. + Details
Name: | luv_NumberOfAircraftsOrderedYearTwo
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Aircrafts To Be Delivered + References No definition available. + Details
Name: | luv_NumberOfAircraftsToBeDelivered
Namespace Prefix: | luv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LongTermCommitmentExcludingUnconditionalPurchaseObligationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_AircraftTypeAxis=luv_B7377MaxMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_AircraftTypeAxis=luv_B7378MAXMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_AircraftTypeAxis=luv_B7377And8Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |