XML 101 R26.htm IDEA: XBRL DOCUMENT
v3.25.2

Supplemental Financial Information (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Accounts and Other Receivables |
(in millions) | June 30, 2025 |  | December 31, 2024 |
Trade receivables | $ | 60 |  |  | $ | 47 |  |
Credit card receivables | 144 |  |  | 143 |  |
Business partners | 648 |  |  | 573 |  |
Taxes receivable | 10 |  |  | 11 |  |
Fuel hedging and receivables | — |  |  | 1 |  |
Reinsurance receivable | 120 |  |  | 168 |  |
Other | 31 |  |  | 167 |  |
Accounts and other receivables | $ | 1,013 |  |  | $ | 1,110 |  |
Schedule of Other Assets |
(in millions) | June 30, 2025 |  | December 31, 2024 |
Derivative contracts | $ | — |  |  | $ | 90 |  |
Intangible assets, net | 295 |  |  | 300 |  |
Equity securities | 394 |  |  | 367 |  |
Prepaid maintenance | 257 |  |  | 263 |  |
Other | 60 |  |  | 61 |  |
Other assets | $ | 1,006 |  |  | $ | 1,081 |  |
Schedule of Accounts Payable |
(in millions) | June 30, 2025 |  | December 31, 2024 |
Accounts payable trade | $ | 278 |  |  | $ | 339 |  |
Salaries, withholdings and payroll taxes | 519 |  |  | 536 |  |
Ticket taxes and fees | 391 |  |  | 318 |  |
Aircraft maintenance payable | 49 |  |  | 33 |  |
Fuel payable | 85 |  |  | 86 |  |
Dividends payable | 95 |  |  | 107 |  |
Third party services | 210 |  |  | 176 |  |
Other payable | 184 |  |  | 223 |  |
Accounts payable | $ | 1,811 |  |  | $ | 1,818 |  |
Schedule of Accrued Liabilities |
(in millions) | June 30, 2025 |  | December 31, 2024 |
Voluntary Separation Program and severance pay | $ | 20 |  |  | $ | 48 |  |
Profit-sharing and savings plans | 54 |  |  | 151 |  |
Vacation pay | 673 |  |  | 657 |  |
Health | 201 |  |  | 192 |  |
Workers compensation | 205 |  |  | 178 |  |
Property and income taxes | 69 |  |  | 53 |  |
Interest | 17 |  |  | 23 |  |
Bonus pay | 97 |  |  | 208 |  |
Reinsurance payable | 205 |  |  | 249 |  |
Aircraft maintenance | 118 |  |  | 92 |  |
Other | 381 |  |  | 355 |  |
Accrued liabilities | $ | 2,040 |  |  | $ | 2,206 |  |
Schedule of Other Noncurrent Liabilities |
| June 30, 2025 |  | December 31, 2024 |
Postretirement obligation | $ | 260 |  |  | $ | 256 |  |
Other deferred compensation | 446 |  |  | 412 |  |
Other | 332 |  |  | 241 |  |
Other noncurrent liabilities | $ | 1,038 |  |  | $ | 909 |  |

X
- Definition Tabular disclosure of the components of accounts payable. + References No definition available. + Details
Name: | luv_ScheduleOfAccountsPayableTableTextBlock
Namespace Prefix: | luv_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of other noncurrent liabilities. + References No definition available. + Details
Name: | us-gaap_OtherNoncurrentLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the carrying amounts of other assets. This disclosure includes other current assets and other noncurrent assets. + References No definition available. + Details
Name: | us-gaap_ScheduleOfOtherAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration