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|---|---|---|
 0001193125-19-277845-index-headers.html | 2019-10-29 19:15:55 | |
| 0001193125-19-277845-index.html | 2019-10-29 19:15:55 | |
| 0001193125-19-277845.txt | 2019-10-29 19:15:55 | |
 0001193125-19-277845-xbrl.zip | 106779 | 2019-10-29 19:15:55 |
| cb-20191029.xsd | 3075 | 2019-10-29 19:15:55 |
| cb-20191029_lab.xml | 17308 | 2019-10-29 19:15:55 |
| cb-20191029_pre.xml | 10935 | 2019-10-29 19:15:55 |
| d818966d8k.htm | 25873 | 2019-10-29 19:15:55 |
| d818966d8k_htm.xml | 3242 | 2019-10-29 19:15:55 |
| d818966dex991.htm | 164166 | 2019-10-29 19:15:55 |
| d818966dex992.htm | 1954875 | 2019-10-29 19:15:55 |
| FilingSummary.xml | 1759 | 2019-10-29 19:15:55 |
| Financial_Report.xlsx | 5768 | 2019-10-29 19:15:55 |
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 g818966g1029074035686.jpg | 1265 | 2019-10-29 19:15:55 |
| MetaLinks.json | 18240 | 2019-10-29 19:15:55 |
| R1.htm | 38563 | 2019-10-29 19:15:55 |
| report.css | 2767 | 2019-10-29 19:15:55 |
| Show.js | 1085 | 2019-10-29 19:15:55 |