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| 0000021175-18-000070-index.html | 2018-04-30 11:01:40 | |
| 0000021175-18-000070.txt | 2018-04-30 11:01:40 | |
 0000021175-18-000070-xbrl.zip | 290617 | 2018-04-30 11:01:40 |
| cna-20180331.xml | 3787046 | 2018-04-30 11:01:40 |
| cna-20180331.xsd | 61654 | 2018-04-30 11:01:40 |
| cna-20180331_cal.xml | 127702 | 2018-04-30 11:01:40 |
| cna-20180331_def.xml | 311615 | 2018-04-30 11:01:40 |
| cna-20180331_lab.xml | 736789 | 2018-04-30 11:01:40 |
| cna-20180331_pre.xml | 468649 | 2018-04-30 11:01:40 |
| cna2018q1.htm | 1872991 | 2018-04-30 11:01:40 |
| FilingSummary.xml | 38566 | 2018-04-30 11:01:40 |
| Financial_Report.xlsx | 90440 | 2018-04-30 11:01:40 |
| q12018cnaex101.htm | 206312 | 2018-04-30 11:01:40 |
| q12018cnaex311.htm | 14632 | 2018-04-30 11:01:40 |
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| report.css | 2767 | 2018-04-30 11:01:40 |
| Show.js | 1410 | 2018-04-30 11:01:40 |