Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-011905-index-headers.html | 2021-01-20 07:16:04 | |
| 0001193125-21-011905-index.html | 2021-01-20 07:16:04 | |
| 0001193125-21-011905.txt | 2021-01-20 07:16:04 | |
 0001193125-21-011905-xbrl.zip | 11610 | 2021-01-20 07:16:04 |
| ctl-20210118.xsd | 4127 | 2021-01-20 07:16:04 |
| ctl-20210118_def.xml | 13397 | 2021-01-20 07:16:04 |
| ctl-20210118_lab.xml | 22007 | 2021-01-20 07:16:04 |
| ctl-20210118_pre.xml | 14300 | 2021-01-20 07:16:04 |
| d53156d8k.htm | 30319 | 2021-01-20 07:16:04 |
| d53156d8k_htm.xml | 5011 | 2021-01-20 07:16:04 |
| FilingSummary.xml | 1795 | 2021-01-20 07:16:04 |
| Financial_Report.xlsx | 5535 | 2021-01-20 07:16:04 |
| MetaLinks.json | 22092 | 2021-01-20 07:16:04 |
| R1.htm | 42317 | 2021-01-20 07:16:04 |
| report.css | 2767 | 2021-01-20 07:16:04 |
| Show.js | 1084 | 2021-01-20 07:16:04 |