Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000092380-21-000033-index-headers.html | 2021-02-08 13:37:31 | |
| 0000092380-21-000033-index.html | 2021-02-08 13:37:31 | |
| 0000092380-21-000033.txt | 2021-02-08 13:37:31 | |
 0000092380-21-000033-xbrl.zip | 1033155 | 2021-02-08 13:37:31 |
| FilingSummary.xml | 48692 | 2021-02-08 13:37:31 |
| Financial_Report.xlsx | 181816 | 2021-02-08 13:37:31 |
| luv-12312020ex23.htm | 2946 | 2021-02-08 13:37:31 |
| luv-12312020xex1013a.htm | 38263 | 2021-02-08 13:37:31 |
| luv-12312020xex1016.htm | 924403 | 2021-02-08 13:37:31 |
| luv-12312020xex1020a.htm | 39646 | 2021-02-08 13:37:31 |
| luv-12312020xex1027.htm | 38024 | 2021-02-08 13:37:31 |
| luv-12312020xex21.htm | 5683 | 2021-02-08 13:37:31 |
| luv-12312020xex311.htm | 9438 | 2021-02-08 13:37:31 |
| luv-12312020xex312.htm | 9821 | 2021-02-08 13:37:31 |
| luv-12312020xex32.htm | 9079 | 2021-02-08 13:37:31 |
| luv-20201231.htm | 3790704 | 2021-02-08 13:37:31 |
| luv-20201231.xsd | 140590 | 2021-02-08 13:37:31 |
| luv-20201231_cal.xml | 131818 | 2021-02-08 13:37:31 |
| luv-20201231_def.xml | 816247 | 2021-02-08 13:37:31 |
 luv-20201231_g1.jpg | 158833 | 2021-02-08 13:37:31 |
 luv-20201231_g2.jpg | 128316 | 2021-02-08 13:37:31 |
| luv-20201231_htm.xml | 3438117 | 2021-02-08 13:37:31 |
| luv-20201231_lab.xml | 1587069 | 2021-02-08 13:37:31 |
| luv-20201231_pre.xml | 1054825 | 2021-02-08 13:37:31 |
| MetaLinks.json | 1257888 | 2021-02-08 13:37:31 |
| R1.htm | 62543 | 2021-02-08 13:37:31 |
| R10.htm | 27223 | 2021-02-08 13:37:31 |
| R11.htm | 15411 | 2021-02-08 13:37:31 |
| R12.htm | 64735 | 2021-02-08 13:37:31 |
| R13.htm | 61697 | 2021-02-08 13:37:31 |
| R14.htm | 69352 | 2021-02-08 13:37:31 |
| R15.htm | 6846 | 2021-02-08 13:37:31 |
| R16.htm | 39770 | 2021-02-08 13:37:31 |
| R17.htm | 219397 | 2021-02-08 13:37:31 |
| R18.htm | 129507 | 2021-02-08 13:37:31 |
| R19.htm | 45795 | 2021-02-08 13:37:31 |
| R2.htm | 104938 | 2021-02-08 13:37:31 |
| R20.htm | 54236 | 2021-02-08 13:37:31 |
| R21.htm | 62353 | 2021-02-08 13:37:31 |
| R22.htm | 58652 | 2021-02-08 13:37:31 |
| R23.htm | 9380 | 2021-02-08 13:37:31 |
| R24.htm | 36020 | 2021-02-08 13:37:31 |
| R25.htm | 137918 | 2021-02-08 13:37:31 |
| R26.htm | 26766 | 2021-02-08 13:37:31 |
| R27.htm | 46365 | 2021-02-08 13:37:31 |
| R28.htm | 34603 | 2021-02-08 13:37:31 |
| R29.htm | 89378 | 2021-02-08 13:37:31 |
| R3.htm | 73635 | 2021-02-08 13:37:31 |
| R30.htm | 36170 | 2021-02-08 13:37:31 |
| R31.htm | 217323 | 2021-02-08 13:37:31 |
| R32.htm | 128294 | 2021-02-08 13:37:31 |
| R33.htm | 46411 | 2021-02-08 13:37:31 |
| R34.htm | 51641 | 2021-02-08 13:37:31 |
| R35.htm | 63466 | 2021-02-08 13:37:31 |
| R36.htm | 63824 | 2021-02-08 13:37:31 |
| R37.htm | 35549 | 2021-02-08 13:37:31 |
| R38.htm | 76567 | 2021-02-08 13:37:31 |
| R39.htm | 128692 | 2021-02-08 13:37:31 |
| R4.htm | 49303 | 2021-02-08 13:37:31 |
| R40.htm | 38590 | 2021-02-08 13:37:31 |
| R41.htm | 46422 | 2021-02-08 13:37:31 |
| R42.htm | 18668 | 2021-02-08 13:37:31 |
| R43.htm | 16638 | 2021-02-08 13:37:31 |
| R44.htm | 6061 | 2021-02-08 13:37:31 |
| R45.htm | 11691 | 2021-02-08 13:37:31 |
| R46.htm | 9504 | 2021-02-08 13:37:31 |
| R47.htm | 15704 | 2021-02-08 13:37:31 |
| R48.htm | 333614 | 2021-02-08 13:37:31 |
| R49.htm | 66581 | 2021-02-08 13:37:31 |
| R5.htm | 48188 | 2021-02-08 13:37:31 |
| R50.htm | 21608 | 2021-02-08 13:37:31 |
| R51.htm | 20641 | 2021-02-08 13:37:31 |
| R52.htm | 13774 | 2021-02-08 13:37:31 |
| R53.htm | 50548 | 2021-02-08 13:37:31 |
| R54.htm | 12447 | 2021-02-08 13:37:31 |
| R55.htm | 16944 | 2021-02-08 13:37:31 |
| R56.htm | 82766 | 2021-02-08 13:37:31 |
| R57.htm | 66127 | 2021-02-08 13:37:31 |
| R58.htm | 12061 | 2021-02-08 13:37:31 |
| R59.htm | 35300 | 2021-02-08 13:37:31 |
| R6.htm | 118938 | 2021-02-08 13:37:31 |
| R60.htm | 11218 | 2021-02-08 13:37:31 |
| R61.htm | 18915 | 2021-02-08 13:37:31 |
| R62.htm | 22294 | 2021-02-08 13:37:31 |
| R63.htm | 36952 | 2021-02-08 13:37:31 |
| R64.htm | 18418 | 2021-02-08 13:37:31 |
| R65.htm | 11129 | 2021-02-08 13:37:31 |
| R66.htm | 94849 | 2021-02-08 13:37:31 |
| R67.htm | 3977 | 2021-02-08 13:37:31 |
| R68.htm | 95424 | 2021-02-08 13:37:31 |
| R69.htm | 32185 | 2021-02-08 13:37:31 |
| R7.htm | 49336 | 2021-02-08 13:37:31 |
| R70.htm | 24220 | 2021-02-08 13:37:31 |
| R71.htm | 108553 | 2021-02-08 13:37:31 |
| R72.htm | 38591 | 2021-02-08 13:37:31 |
| R73.htm | 32843 | 2021-02-08 13:37:31 |
| R74.htm | 84725 | 2021-02-08 13:37:31 |
| R75.htm | 97250 | 2021-02-08 13:37:31 |
| R76.htm | 18339 | 2021-02-08 13:37:31 |
| R77.htm | 10561 | 2021-02-08 13:37:31 |
| R78.htm | 20295 | 2021-02-08 13:37:31 |
| R79.htm | 28958 | 2021-02-08 13:37:31 |
| R8.htm | 22092 | 2021-02-08 13:37:31 |
| R80.htm | 15423 | 2021-02-08 13:37:31 |
| R81.htm | 16533 | 2021-02-08 13:37:31 |
| R82.htm | 46106 | 2021-02-08 13:37:31 |
| R9.htm | 20295 | 2021-02-08 13:37:31 |
| report.css | 2768 | 2021-02-08 13:37:31 |
| Show.js | 1086 | 2021-02-08 13:37:31 |