Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-18-054235-index-headers.html | 2018-02-22 16:59:42 | |
| 0001193125-18-054235-index.html | 2018-02-22 16:59:42 | |
| 0001193125-18-054235.txt | 2018-02-22 16:59:42 | |
 0001193125-18-054235-xbrl.zip | 362370 | 2018-02-22 16:59:42 |
| d471340d10k.htm | 1986640 | 2018-02-22 16:59:42 |
| d471340dex10219.htm | 95795 | 2018-02-22 16:59:42 |
| d471340dex103.htm | 13895 | 2018-02-22 16:59:42 |
| d471340dex1063.htm | 38615 | 2018-02-22 16:59:42 |
| d471340dex1064.htm | 18134 | 2018-02-22 16:59:42 |
| d471340dex121.htm | 23954 | 2018-02-22 16:59:42 |
| d471340dex122.htm | 23942 | 2018-02-22 16:59:42 |
| d471340dex211.htm | 19002 | 2018-02-22 16:59:42 |
| d471340dex231.htm | 4688 | 2018-02-22 16:59:42 |
| d471340dex232.htm | 1540 | 2018-02-22 16:59:42 |
| d471340dex311.htm | 9340 | 2018-02-22 16:59:42 |
| d471340dex312.htm | 9472 | 2018-02-22 16:59:42 |
| d471340dex313.htm | 9328 | 2018-02-22 16:59:42 |
| d471340dex314.htm | 9460 | 2018-02-22 16:59:42 |
| d471340dex321.htm | 4014 | 2018-02-22 16:59:42 |
| d471340dex322.htm | 4094 | 2018-02-22 16:59:42 |
| FilingSummary.xml | 68441 | 2018-02-22 16:59:42 |
| Financial_Report.xlsx | 146305 | 2018-02-22 16:59:42 |
 g471340g19i24.jpg | 72262 | 2018-02-22 16:59:42 |
 g471340g68z78.jpg | 39549 | 2018-02-22 16:59:42 |
| R1.htm | 33681 | 2018-02-22 16:59:42 |
| R10.htm | 5484 | 2018-02-22 16:59:42 |
| R100.htm | 18651 | 2018-02-22 16:59:42 |
| R101.htm | 35280 | 2018-02-22 16:59:42 |
| R102.htm | 27339 | 2018-02-22 16:59:42 |
| R11.htm | 16374 | 2018-02-22 16:59:42 |
| R12.htm | 39006 | 2018-02-22 16:59:42 |
| R13.htm | 48522 | 2018-02-22 16:59:42 |
| R14.htm | 69381 | 2018-02-22 16:59:42 |
| R15.htm | 154914 | 2018-02-22 16:59:42 |
| R16.htm | 41718 | 2018-02-22 16:59:42 |
| R17.htm | 51513 | 2018-02-22 16:59:42 |
| R18.htm | 39039 | 2018-02-22 16:59:42 |
| R19.htm | 8768 | 2018-02-22 16:59:42 |
| R2.htm | 77238 | 2018-02-22 16:59:42 |
| R20.htm | 22146 | 2018-02-22 16:59:42 |
| R21.htm | 37818 | 2018-02-22 16:59:42 |
| R22.htm | 12447 | 2018-02-22 16:59:42 |
| R23.htm | 48555 | 2018-02-22 16:59:42 |
| R24.htm | 23805 | 2018-02-22 16:59:42 |
| R25.htm | 169909 | 2018-02-22 16:59:42 |
| R26.htm | 121382 | 2018-02-22 16:59:42 |
| R27.htm | 28649 | 2018-02-22 16:59:42 |
| R28.htm | 16383 | 2018-02-22 16:59:42 |
| R29.htm | 35975 | 2018-02-22 16:59:42 |
| R3.htm | 21315 | 2018-02-22 16:59:42 |
| R30.htm | 47182 | 2018-02-22 16:59:42 |
| R31.htm | 56985 | 2018-02-22 16:59:42 |
| R32.htm | 172100 | 2018-02-22 16:59:42 |
| R33.htm | 37742 | 2018-02-22 16:59:42 |
| R34.htm | 52053 | 2018-02-22 16:59:42 |
| R35.htm | 24843 | 2018-02-22 16:59:42 |
| R36.htm | 12591 | 2018-02-22 16:59:42 |
| R37.htm | 31496 | 2018-02-22 16:59:42 |
| R38.htm | 10442 | 2018-02-22 16:59:42 |
| R39.htm | 49927 | 2018-02-22 16:59:42 |
| R4.htm | 156383 | 2018-02-22 16:59:42 |
| R40.htm | 22262 | 2018-02-22 16:59:42 |
| R41.htm | 11404 | 2018-02-22 16:59:42 |
| R42.htm | 22326 | 2018-02-22 16:59:42 |
| R43.htm | 20444 | 2018-02-22 16:59:42 |
| R44.htm | 102105 | 2018-02-22 16:59:42 |
| R45.htm | 46490 | 2018-02-22 16:59:42 |
| R46.htm | 41502 | 2018-02-22 16:59:42 |
| R47.htm | 17151 | 2018-02-22 16:59:42 |
| R48.htm | 23855 | 2018-02-22 16:59:42 |
| R49.htm | 24262 | 2018-02-22 16:59:42 |
| R5.htm | 19020 | 2018-02-22 16:59:42 |
| R50.htm | 60201 | 2018-02-22 16:59:42 |
| R51.htm | 12321 | 2018-02-22 16:59:42 |
| R52.htm | 14005 | 2018-02-22 16:59:42 |
| R53.htm | 28444 | 2018-02-22 16:59:42 |
| R54.htm | 53248 | 2018-02-22 16:59:42 |
| R55.htm | 19216 | 2018-02-22 16:59:42 |
| R56.htm | 8818 | 2018-02-22 16:59:42 |
| R57.htm | 14547 | 2018-02-22 16:59:42 |
| R58.htm | 42612 | 2018-02-22 16:59:42 |
| R59.htm | 56432 | 2018-02-22 16:59:42 |
| R6.htm | 118906 | 2018-02-22 16:59:42 |
| R60.htm | 37321 | 2018-02-22 16:59:42 |
| R61.htm | 48032 | 2018-02-22 16:59:42 |
| R62.htm | 28996 | 2018-02-22 16:59:42 |
| R63.htm | 9471 | 2018-02-22 16:59:42 |
| R64.htm | 24508 | 2018-02-22 16:59:42 |
| R65.htm | 10662 | 2018-02-22 16:59:42 |
| R66.htm | 24225 | 2018-02-22 16:59:42 |
| R67.htm | 24081 | 2018-02-22 16:59:42 |
| R68.htm | 22099 | 2018-02-22 16:59:42 |
| R69.htm | 12463 | 2018-02-22 16:59:42 |
| R7.htm | 75161 | 2018-02-22 16:59:42 |
| R70.htm | 48278 | 2018-02-22 16:59:42 |
| R71.htm | 12585 | 2018-02-22 16:59:42 |
| R72.htm | 32610 | 2018-02-22 16:59:42 |
| R73.htm | 11383 | 2018-02-22 16:59:42 |
| R74.htm | 9850 | 2018-02-22 16:59:42 |
| R75.htm | 21171 | 2018-02-22 16:59:42 |
| R76.htm | 10551 | 2018-02-22 16:59:42 |
| R77.htm | 39785 | 2018-02-22 16:59:42 |
| R78.htm | 19081 | 2018-02-22 16:59:42 |
| R79.htm | 17260 | 2018-02-22 16:59:42 |
| R8.htm | 133222 | 2018-02-22 16:59:42 |
| R80.htm | 41345 | 2018-02-22 16:59:42 |
| R81.htm | 70485 | 2018-02-22 16:59:42 |
| R82.htm | 21416 | 2018-02-22 16:59:42 |
| R83.htm | 66084 | 2018-02-22 16:59:42 |
| R84.htm | 47488 | 2018-02-22 16:59:42 |
| R85.htm | 16309 | 2018-02-22 16:59:42 |
| R86.htm | 19039 | 2018-02-22 16:59:42 |
| R87.htm | 51115 | 2018-02-22 16:59:42 |
| R88.htm | 8123 | 2018-02-22 16:59:42 |
| R89.htm | 68634 | 2018-02-22 16:59:42 |
| R9.htm | 31713 | 2018-02-22 16:59:42 |
| R90.htm | 14813 | 2018-02-22 16:59:42 |
| R91.htm | 10280 | 2018-02-22 16:59:42 |
| R92.htm | 13929 | 2018-02-22 16:59:42 |
| R93.htm | 56650 | 2018-02-22 16:59:42 |
| R94.htm | 17807 | 2018-02-22 16:59:42 |
| R95.htm | 30341 | 2018-02-22 16:59:42 |
| R96.htm | 138506 | 2018-02-22 16:59:42 |
| R97.htm | 14703 | 2018-02-22 16:59:42 |
| R98.htm | 4966 | 2018-02-22 16:59:42 |
| R99.htm | 18747 | 2018-02-22 16:59:42 |
| report.css | 2768 | 2018-02-22 16:59:42 |
| Show.js | 1411 | 2018-02-22 16:59:42 |
| ual-20171231.xml | 2800652 | 2018-02-22 16:59:42 |
| ual-20171231.xsd | 112242 | 2018-02-22 16:59:42 |
| ual-20171231_cal.xml | 155498 | 2018-02-22 16:59:42 |
| ual-20171231_def.xml | 772761 | 2018-02-22 16:59:42 |
| ual-20171231_lab.xml | 949247 | 2018-02-22 16:59:42 |
| ual-20171231_pre.xml | 900269 | 2018-02-22 16:59:42 |