Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-150103-index-headers.html | 2020-05-22 16:15:50 | |
| 0001193125-20-150103-index.html | 2020-05-22 16:15:50 | |
| 0001193125-20-150103.txt | 2020-05-22 16:15:50 | |
 0001193125-20-150103-xbrl.zip | 32983 | 2020-05-22 16:15:50 |
| ctl-20200520.xsd | 4128 | 2020-05-22 16:15:50 |
| ctl-20200520_def.xml | 13398 | 2020-05-22 16:15:50 |
| ctl-20200520_lab.xml | 22008 | 2020-05-22 16:15:50 |
| ctl-20200520_pre.xml | 14301 | 2020-05-22 16:15:50 |
| d935861d8k.htm | 67918 | 2020-05-22 16:15:50 |
| d935861d8k_htm.xml | 5009 | 2020-05-22 16:15:50 |
| d935861dex101.htm | 79420 | 2020-05-22 16:15:50 |
| FilingSummary.xml | 1898 | 2020-05-22 16:15:50 |
| Financial_Report.xlsx | 5870 | 2020-05-22 16:15:50 |
 g935861g0522125103277.jpg | 3474 | 2020-05-22 16:15:50 |
| MetaLinks.json | 22098 | 2020-05-22 16:15:50 |
| R1.htm | 42309 | 2020-05-22 16:15:50 |
| report.css | 2766 | 2020-05-22 16:15:50 |
| Show.js | 1085 | 2020-05-22 16:15:50 |