Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-014329-index-headers.html | 2020-01-24 17:08:11 | |
| 0001193125-20-014329-index.html | 2020-01-24 17:08:11 | |
| 0001193125-20-014329.txt | 2020-01-24 17:08:11 | |
 0001193125-20-014329-xbrl.zip | 133831 | 2020-01-24 17:08:11 |
| ctl-20200124.xsd | 3076 | 2020-01-24 17:08:11 |
| ctl-20200124_lab.xml | 17374 | 2020-01-24 17:08:11 |
| ctl-20200124_pre.xml | 10958 | 2020-01-24 17:08:11 |
| d835989d8k.htm | 48201 | 2020-01-24 17:08:11 |
| d835989d8k_htm.xml | 3270 | 2020-01-24 17:08:11 |
| d835989dex41.htm | 672101 | 2020-01-24 17:08:11 |
| d835989dex991.htm | 6708 | 2020-01-24 17:08:11 |
| FilingSummary.xml | 1831 | 2020-01-24 17:08:11 |
| Financial_Report.xlsx | 5782 | 2020-01-24 17:08:11 |
 g835989g0124091026025.jpg | 3667 | 2020-01-24 17:08:11 |
 g835989g0124091416571.jpg | 32927 | 2020-01-24 17:08:11 |
| MetaLinks.json | 18282 | 2020-01-24 17:08:11 |
| R1.htm | 38614 | 2020-01-24 17:08:11 |
| report.css | 2767 | 2020-01-24 17:08:11 |
| Show.js | 1085 | 2020-01-24 17:08:11 |