Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-017712-index-headers.html | 2021-01-26 16:15:56 | |
| 0001193125-21-017712-index.html | 2021-01-26 16:15:56 | |
| 0001193125-21-017712.txt | 2021-01-26 16:15:56 | |
 0001193125-21-017712-xbrl.zip | 53098 | 2021-01-26 16:15:56 |
| ctl-20210122.xsd | 4127 | 2021-01-26 16:15:56 |
| ctl-20210122_def.xml | 14279 | 2021-01-26 16:15:56 |
| ctl-20210122_lab.xml | 23675 | 2021-01-26 16:15:56 |
| ctl-20210122_pre.xml | 15312 | 2021-01-26 16:15:56 |
| d246960d8k.htm | 32185 | 2021-01-26 16:15:56 |
| d246960d8k_htm.xml | 5419 | 2021-01-26 16:15:56 |
| d246960dex31.htm | 5239 | 2021-01-26 16:15:56 |
| d246960dex32.htm | 216035 | 2021-01-26 16:15:56 |
| d246960dex41.htm | 27206 | 2021-01-26 16:15:56 |
| FilingSummary.xml | 1900 | 2021-01-26 16:15:56 |
| Financial_Report.xlsx | 5606 | 2021-01-26 16:15:56 |
 g246960g45y97.jpg | 215237 | 2021-01-26 16:15:56 |
 g246960g46i33.jpg | 158270 | 2021-01-26 16:15:56 |
| MetaLinks.json | 23383 | 2021-01-26 16:15:56 |
| R1.htm | 45491 | 2021-01-26 16:15:56 |
| report.css | 2767 | 2021-01-26 16:15:56 |
| Show.js | 1085 | 2021-01-26 16:15:56 |