Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-021844-index-headers.html | 2020-01-31 20:48:43 | |
| 0001193125-20-021844-index.html | 2020-01-31 20:48:43 | |
| 0001193125-20-021844.txt | 2020-01-31 20:48:43 | |
 0001193125-20-021844-xbrl.zip | 229862 | 2020-01-31 20:48:43 |
| ctl-20200131.xsd | 3075 | 2020-01-31 20:48:43 |
| ctl-20200131_lab.xml | 17373 | 2020-01-31 20:48:43 |
| ctl-20200131_pre.xml | 10957 | 2020-01-31 20:48:43 |
| d881693d8k.htm | 41494 | 2020-01-31 20:48:43 |
| d881693d8k_htm.xml | 3270 | 2020-01-31 20:48:43 |
| d881693dex101.htm | 1354470 | 2020-01-31 20:48:43 |
| d881693dex991.htm | 5389 | 2020-01-31 20:48:43 |
| FilingSummary.xml | 1832 | 2020-01-31 20:48:43 |
| Financial_Report.xlsx | 5782 | 2020-01-31 20:48:43 |
 g881693g0131225925147.jpg | 3667 | 2020-01-31 20:48:43 |
 g881693g0131233029439.jpg | 32927 | 2020-01-31 20:48:43 |
| MetaLinks.json | 18312 | 2020-01-31 20:48:43 |
| R1.htm | 38615 | 2020-01-31 20:48:43 |
| report.css | 2767 | 2020-01-31 20:48:43 |
| Show.js | 1085 | 2020-01-31 20:48:43 |