Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-169537-index-headers.html | 2020-06-15 16:48:24 | |
| 0001193125-20-169537-index.html | 2020-06-15 16:48:24 | |
| 0001193125-20-169537.txt | 2020-06-15 16:48:24 | |
 0001193125-20-169537-xbrl.zip | 144504 | 2020-06-15 16:48:24 |
| ctl-20200615.xsd | 5169 | 2020-06-15 16:48:24 |
| ctl-20200615_cal.xml | 677 | 2020-06-15 16:48:24 |
| ctl-20200615_def.xml | 14442 | 2020-06-15 16:48:24 |
| ctl-20200615_lab.xml | 22965 | 2020-06-15 16:48:24 |
| ctl-20200615_pre.xml | 14821 | 2020-06-15 16:48:24 |
| d944530d8k.htm | 94279 | 2020-06-15 16:48:24 |
| d944530d8k_htm.xml | 7097 | 2020-06-15 16:48:24 |
| d944530dex41.htm | 755598 | 2020-06-15 16:48:24 |
| d944530dex991.htm | 8634 | 2020-06-15 16:48:24 |
| FilingSummary.xml | 1814 | 2020-06-15 16:48:24 |
| Financial_Report.xlsx | 6125 | 2020-06-15 16:48:24 |
 g944530g0614092819791.jpg | 32927 | 2020-06-15 16:48:24 |
| MetaLinks.json | 23374 | 2020-06-15 16:48:24 |
| R1.htm | 48960 | 2020-06-15 16:48:24 |
| report.css | 2767 | 2020-06-15 16:48:24 |
| Show.js | 1085 | 2020-06-15 16:48:24 |