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| 0000021175-25-000074-index.html | 2025-08-04 06:25:11 | |
| 0000021175-25-000074.txt | 2025-08-04 06:25:11 | |
 0000021175-25-000074-xbrl.zip | 340703 | 2025-08-04 06:25:11 |
| cna-20250630.htm | 2906304 | 2025-08-04 06:25:11 |
| cna-20250630.xsd | 67851 | 2025-08-04 06:25:11 |
| cna-20250630_cal.xml | 135562 | 2025-08-04 06:25:11 |
| cna-20250630_def.xml | 343862 | 2025-08-04 06:25:11 |
| cna-20250630_htm.xml | 3759302 | 2025-08-04 06:25:11 |
| cna-20250630_lab.xml | 806796 | 2025-08-04 06:25:11 |
| cna-20250630_pre.xml | 590862 | 2025-08-04 06:25:11 |
| FilingSummary.xml | 47602 | 2025-08-04 06:25:11 |
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| q22025cnaex311.htm | 12381 | 2025-08-04 06:25:11 |
| q22025cnaex312.htm | 12259 | 2025-08-04 06:25:11 |
| q22025cnaex321.htm | 7080 | 2025-08-04 06:25:11 |
| q22025cnaex322.htm | 7050 | 2025-08-04 06:25:11 |
| q22025cnaexhibit101.htm | 42225 | 2025-08-04 06:25:11 |
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| report.css | 2767 | 2025-08-04 06:25:11 |
| Show.js | 1085 | 2025-08-04 06:25:11 |