Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000927628-24-000094-index-headers.html | 2024-02-22 18:12:08 | |
| 0000927628-24-000094-index.html | 2024-02-22 18:12:08 | |
| 0000927628-24-000094.txt | 2024-02-22 18:12:08 | |
 0000927628-24-000094-xbrl.zip | 1211605 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10210.htm | 69291 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10211.htm | 80321 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10212.htm | 83639 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10215.htm | 72279 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10217.htm | 80441 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10218.htm | 72951 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10220.htm | 83739 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10224.htm | 70857 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10225.htm | 79056 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10226.htm | 61789 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10227.htm | 73633 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex10228.htm | 85369 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex1026.htm | 76632 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex1027.htm | 81437 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex105.htm | 74079 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex21.htm | 4065 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex23.htm | 51638 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex311.htm | 11689 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex312.htm | 11665 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex321.htm | 6391 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex322.htm | 6356 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex43.htm | 189190 | 2024-02-22 18:12:08 |
| cof-12312023x10kxex97.htm | 48193 | 2024-02-22 18:12:08 |
| cof-20231231.htm | 8252507 | 2024-02-22 18:12:08 |
| cof-20231231.xsd | 137774 | 2024-02-22 18:12:08 |
| cof-20231231_cal.xml | 223441 | 2024-02-22 18:12:08 |
| cof-20231231_def.xml | 972856 | 2024-02-22 18:12:08 |
 cof-20231231_g1.jpg | 145802 | 2024-02-22 18:12:08 |
| cof-20231231_htm.xml | 8616537 | 2024-02-22 18:12:08 |
| cof-20231231_lab.xml | 1793875 | 2024-02-22 18:12:08 |
| cof-20231231_pre.xml | 1339165 | 2024-02-22 18:12:08 |
| FilingSummary.xml | 86300 | 2024-02-22 18:12:08 |
| Financial_Report.xlsx | 318498 | 2024-02-22 18:12:08 |
| MetaLinks.json | 1926634 | 2024-02-22 18:12:08 |
| R1.htm | 87341 | 2024-02-22 18:12:08 |
| R10.htm | 108075 | 2024-02-22 18:12:08 |
| R100.htm | 38684 | 2024-02-22 18:12:08 |
| R101.htm | 41118 | 2024-02-22 18:12:08 |
| R102.htm | 48466 | 2024-02-22 18:12:08 |
| R103.htm | 44193 | 2024-02-22 18:12:08 |
| R104.htm | 17957 | 2024-02-22 18:12:08 |
| R105.htm | 53032 | 2024-02-22 18:12:08 |
| R106.htm | 92000 | 2024-02-22 18:12:08 |
| R107.htm | 61366 | 2024-02-22 18:12:08 |
| R108.htm | 34259 | 2024-02-22 18:12:08 |
| R109.htm | 32952 | 2024-02-22 18:12:08 |
| R11.htm | 175241 | 2024-02-22 18:12:08 |
| R110.htm | 27384 | 2024-02-22 18:12:08 |
| R111.htm | 40900 | 2024-02-22 18:12:08 |
| R112.htm | 15708 | 2024-02-22 18:12:08 |
| R113.htm | 29962 | 2024-02-22 18:12:08 |
| R114.htm | 36106 | 2024-02-22 18:12:08 |
| R115.htm | 22480 | 2024-02-22 18:12:08 |
| R116.htm | 45683 | 2024-02-22 18:12:08 |
| R117.htm | 24456 | 2024-02-22 18:12:08 |
| R118.htm | 107736 | 2024-02-22 18:12:08 |
| R119.htm | 90694 | 2024-02-22 18:12:08 |
| R12.htm | 765752 | 2024-02-22 18:12:08 |
| R120.htm | 72060 | 2024-02-22 18:12:08 |
| R121.htm | 30614 | 2024-02-22 18:12:08 |
| R122.htm | 13483 | 2024-02-22 18:12:08 |
| R123.htm | 11482 | 2024-02-22 18:12:08 |
| R124.htm | 49377 | 2024-02-22 18:12:08 |
| R125.htm | 11060 | 2024-02-22 18:12:08 |
| R126.htm | 62745 | 2024-02-22 18:12:08 |
| R127.htm | 48967 | 2024-02-22 18:12:08 |
| R128.htm | 19530 | 2024-02-22 18:12:08 |
| R129.htm | 7663 | 2024-02-22 18:12:08 |
| R13.htm | 204801 | 2024-02-22 18:12:08 |
| R130.htm | 11700 | 2024-02-22 18:12:08 |
| R131.htm | 9479 | 2024-02-22 18:12:08 |
| R132.htm | 50808 | 2024-02-22 18:12:08 |
| R133.htm | 55459 | 2024-02-22 18:12:08 |
| R134.htm | 74651 | 2024-02-22 18:12:08 |
| R135.htm | 11269 | 2024-02-22 18:12:08 |
| R14.htm | 103106 | 2024-02-22 18:12:08 |
| R15.htm | 87873 | 2024-02-22 18:12:08 |
| R16.htm | 61213 | 2024-02-22 18:12:08 |
| R17.htm | 77989 | 2024-02-22 18:12:08 |
| R18.htm | 354104 | 2024-02-22 18:12:08 |
| R19.htm | 170239 | 2024-02-22 18:12:08 |
| R2.htm | 7788 | 2024-02-22 18:12:08 |
| R20.htm | 71028 | 2024-02-22 18:12:08 |
| R21.htm | 54265 | 2024-02-22 18:12:08 |
| R22.htm | 46752 | 2024-02-22 18:12:08 |
| R23.htm | 63976 | 2024-02-22 18:12:08 |
| R24.htm | 114253 | 2024-02-22 18:12:08 |
| R25.htm | 415633 | 2024-02-22 18:12:08 |
| R26.htm | 230605 | 2024-02-22 18:12:08 |
| R27.htm | 42300 | 2024-02-22 18:12:08 |
| R28.htm | 99995 | 2024-02-22 18:12:08 |
| R29.htm | 8746 | 2024-02-22 18:12:08 |
| R3.htm | 133114 | 2024-02-22 18:12:08 |
| R30.htm | 8010 | 2024-02-22 18:12:08 |
| R31.htm | 15205 | 2024-02-22 18:12:08 |
| R32.htm | 8483 | 2024-02-22 18:12:08 |
| R33.htm | 199406 | 2024-02-22 18:12:08 |
| R34.htm | 21026 | 2024-02-22 18:12:08 |
| R35.htm | 176924 | 2024-02-22 18:12:08 |
| R36.htm | 829184 | 2024-02-22 18:12:08 |
| R37.htm | 528422 | 2024-02-22 18:12:08 |
| R38.htm | 93914 | 2024-02-22 18:12:08 |
| R39.htm | 88304 | 2024-02-22 18:12:08 |
| R4.htm | 33352 | 2024-02-22 18:12:08 |
| R40.htm | 64332 | 2024-02-22 18:12:08 |
| R41.htm | 75837 | 2024-02-22 18:12:08 |
| R42.htm | 382224 | 2024-02-22 18:12:08 |
| R43.htm | 174653 | 2024-02-22 18:12:08 |
| R44.htm | 51967 | 2024-02-22 18:12:08 |
| R45.htm | 53316 | 2024-02-22 18:12:08 |
| R46.htm | 39842 | 2024-02-22 18:12:08 |
| R47.htm | 53805 | 2024-02-22 18:12:08 |
| R48.htm | 111534 | 2024-02-22 18:12:08 |
| R49.htm | 404570 | 2024-02-22 18:12:08 |
| R5.htm | 122714 | 2024-02-22 18:12:08 |
| R50.htm | 212518 | 2024-02-22 18:12:08 |
| R51.htm | 20492 | 2024-02-22 18:12:08 |
| R52.htm | 102644 | 2024-02-22 18:12:08 |
| R53.htm | 4823 | 2024-02-22 18:12:08 |
| R54.htm | 6225 | 2024-02-22 18:12:08 |
| R55.htm | 29434 | 2024-02-22 18:12:08 |
| R56.htm | 13452 | 2024-02-22 18:12:08 |
| R57.htm | 4030 | 2024-02-22 18:12:08 |
| R58.htm | 8587 | 2024-02-22 18:12:08 |
| R59.htm | 19467 | 2024-02-22 18:12:08 |
| R6.htm | 31749 | 2024-02-22 18:12:08 |
| R60.htm | 39818 | 2024-02-22 18:12:08 |
| R61.htm | 48308 | 2024-02-22 18:12:08 |
| R62.htm | 69801 | 2024-02-22 18:12:08 |
| R63.htm | 11722 | 2024-02-22 18:12:08 |
| R64.htm | 29069 | 2024-02-22 18:12:08 |
| R65.htm | 95713 | 2024-02-22 18:12:08 |
| R66.htm | 42780 | 2024-02-22 18:12:08 |
| R67.htm | 37539 | 2024-02-22 18:12:08 |
| R68.htm | 78436 | 2024-02-22 18:12:08 |
| R69.htm | 71806 | 2024-02-22 18:12:08 |
| R7.htm | 73970 | 2024-02-22 18:12:08 |
| R70.htm | 129953 | 2024-02-22 18:12:08 |
| R71.htm | 81384 | 2024-02-22 18:12:08 |
| R72.htm | 75547 | 2024-02-22 18:12:08 |
| R73.htm | 71355 | 2024-02-22 18:12:08 |
| R74.htm | 31424 | 2024-02-22 18:12:08 |
| R75.htm | 11188 | 2024-02-22 18:12:08 |
| R76.htm | 72543 | 2024-02-22 18:12:08 |
| R77.htm | 60815 | 2024-02-22 18:12:08 |
| R78.htm | 12456 | 2024-02-22 18:12:08 |
| R79.htm | 66421 | 2024-02-22 18:12:08 |
| R8.htm | 5797 | 2024-02-22 18:12:08 |
| R80.htm | 14135 | 2024-02-22 18:12:08 |
| R81.htm | 42270 | 2024-02-22 18:12:08 |
| R82.htm | 42398 | 2024-02-22 18:12:08 |
| R83.htm | 8036 | 2024-02-22 18:12:08 |
| R84.htm | 20419 | 2024-02-22 18:12:08 |
| R85.htm | 19650 | 2024-02-22 18:12:08 |
| R86.htm | 21249 | 2024-02-22 18:12:08 |
| R87.htm | 21461 | 2024-02-22 18:12:08 |
| R88.htm | 25486 | 2024-02-22 18:12:08 |
| R89.htm | 20811 | 2024-02-22 18:12:08 |
| R9.htm | 131612 | 2024-02-22 18:12:08 |
| R90.htm | 14972 | 2024-02-22 18:12:08 |
| R91.htm | 56730 | 2024-02-22 18:12:08 |
| R92.htm | 66596 | 2024-02-22 18:12:08 |
| R93.htm | 75055 | 2024-02-22 18:12:08 |
| R94.htm | 26721 | 2024-02-22 18:12:08 |
| R95.htm | 24174 | 2024-02-22 18:12:08 |
| R96.htm | 52440 | 2024-02-22 18:12:08 |
| R97.htm | 96036 | 2024-02-22 18:12:08 |
| R98.htm | 6909 | 2024-02-22 18:12:08 |
| R99.htm | 19886 | 2024-02-22 18:12:08 |
| report.css | 2768 | 2024-02-22 18:12:08 |
| Show.js | 1086 | 2024-02-22 18:12:08 |