Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001130310-23-000061-index-headers.html | 2023-04-27 06:16:40 | |
| 0001130310-23-000061-index.html | 2023-04-27 06:16:40 | |
| 0001130310-23-000061.txt | 2023-04-27 06:16:40 | |
 0001130310-23-000061-xbrl.zip | 630037 | 2023-04-27 06:16:40 |
| cehe_exhibit3112x3312023.htm | 11502 | 2023-04-27 06:16:40 |
| cehe_exhibit3212x3312023.htm | 5802 | 2023-04-27 06:16:40 |
| cerc_exhibit3113x3312023.htm | 10477 | 2023-04-27 06:16:40 |
| cerc_exhibit3213x3312023.htm | 5668 | 2023-04-27 06:16:40 |
| cnp-20230331.htm | 3979881 | 2023-04-27 06:16:40 |
| cnp-20230331.xsd | 95564 | 2023-04-27 06:16:40 |
| cnp-20230331_cal.xml | 134385 | 2023-04-27 06:16:40 |
| cnp-20230331_def.xml | 688934 | 2023-04-27 06:16:40 |
| cnp-20230331_htm.xml | 3466822 | 2023-04-27 06:16:40 |
| cnp-20230331_lab.xml | 1004444 | 2023-04-27 06:16:40 |
| cnp-20230331_pre.xml | 869749 | 2023-04-27 06:16:40 |
| cnp_exhibit3111x3312023.htm | 11605 | 2023-04-27 06:16:40 |
| cnp_exhibit3121x3312023.htm | 11648 | 2023-04-27 06:16:40 |
| cnp_exhibit3211x3312023.htm | 5815 | 2023-04-27 06:16:40 |
| cnp_exhibit3221x3312023.htm | 5720 | 2023-04-27 06:16:40 |
| exhibit411-officerscertifi.htm | 200855 | 2023-04-27 06:16:40 |
| exhibit46-supplementalinde.htm | 237681 | 2023-04-27 06:16:40 |
| FilingSummary.xml | 62326 | 2023-04-27 06:16:40 |
| Financial_Report.xlsx | 180568 | 2023-04-27 06:16:40 |
 image_0.jpg | 149 | 2023-04-27 06:16:40 |
| MetaLinks.json | 1145651 | 2023-04-27 06:16:40 |
| R1.htm | 78233 | 2023-04-27 06:16:40 |
| R10.htm | 58109 | 2023-04-27 06:16:40 |
| R11.htm | 18564 | 2023-04-27 06:16:40 |
| R12.htm | 130671 | 2023-04-27 06:16:40 |
| R13.htm | 20050 | 2023-04-27 06:16:40 |
| R14.htm | 90462 | 2023-04-27 06:16:40 |
| R15.htm | 35469 | 2023-04-27 06:16:40 |
| R16.htm | 69448 | 2023-04-27 06:16:40 |
| R17.htm | 25471 | 2023-04-27 06:16:40 |
| R18.htm | 5397 | 2023-04-27 06:16:40 |
| R19.htm | 152933 | 2023-04-27 06:16:40 |
| R2.htm | 95680 | 2023-04-27 06:16:40 |
| R20.htm | 7107 | 2023-04-27 06:16:40 |
| R21.htm | 95449 | 2023-04-27 06:16:40 |
| R22.htm | 43641 | 2023-04-27 06:16:40 |
| R23.htm | 15780 | 2023-04-27 06:16:40 |
| R24.htm | 14695 | 2023-04-27 06:16:40 |
| R25.htm | 13329 | 2023-04-27 06:16:40 |
| R26.htm | 98246 | 2023-04-27 06:16:40 |
| R27.htm | 68861 | 2023-04-27 06:16:40 |
| R28.htm | 45170 | 2023-04-27 06:16:40 |
| R29.htm | 64086 | 2023-04-27 06:16:40 |
| R3.htm | 32234 | 2023-04-27 06:16:40 |
| R30.htm | 120430 | 2023-04-27 06:16:40 |
| R31.htm | 48010 | 2023-04-27 06:16:40 |
| R32.htm | 39879 | 2023-04-27 06:16:40 |
| R33.htm | 114852 | 2023-04-27 06:16:40 |
| R34.htm | 17609 | 2023-04-27 06:16:40 |
| R35.htm | 70512 | 2023-04-27 06:16:40 |
| R36.htm | 29330 | 2023-04-27 06:16:40 |
| R37.htm | 56062 | 2023-04-27 06:16:40 |
| R38.htm | 42054 | 2023-04-27 06:16:40 |
| R39.htm | 47702 | 2023-04-27 06:16:40 |
| R4.htm | 7146 | 2023-04-27 06:16:40 |
| R40.htm | 78048 | 2023-04-27 06:16:40 |
| R41.htm | 143872 | 2023-04-27 06:16:40 |
| R42.htm | 9387 | 2023-04-27 06:16:40 |
| R43.htm | 32836 | 2023-04-27 06:16:40 |
| R44.htm | 11713 | 2023-04-27 06:16:40 |
| R45.htm | 90413 | 2023-04-27 06:16:40 |
| R46.htm | 66956 | 2023-04-27 06:16:40 |
| R47.htm | 27171 | 2023-04-27 06:16:40 |
| R48.htm | 62393 | 2023-04-27 06:16:40 |
| R49.htm | 118082 | 2023-04-27 06:16:40 |
| R5.htm | 147182 | 2023-04-27 06:16:40 |
| R50.htm | 56705 | 2023-04-27 06:16:40 |
| R51.htm | 39647 | 2023-04-27 06:16:40 |
| R52.htm | 104392 | 2023-04-27 06:16:40 |
| R53.htm | 14248 | 2023-04-27 06:16:40 |
| R54.htm | 32696 | 2023-04-27 06:16:40 |
| R55.htm | 27585 | 2023-04-27 06:16:40 |
| R56.htm | 47896 | 2023-04-27 06:16:40 |
| R57.htm | 41493 | 2023-04-27 06:16:40 |
| R58.htm | 45285 | 2023-04-27 06:16:40 |
| R59.htm | 84773 | 2023-04-27 06:16:40 |
| R6.htm | 34812 | 2023-04-27 06:16:40 |
| R60.htm | 147180 | 2023-04-27 06:16:40 |
| R61.htm | 19590 | 2023-04-27 06:16:40 |
| R62.htm | 3966 | 2023-04-27 06:16:40 |
| R63.htm | 29554 | 2023-04-27 06:16:40 |
| R64.htm | 15297 | 2023-04-27 06:16:40 |
| R65.htm | 33445 | 2023-04-27 06:16:40 |
| R66.htm | 35980 | 2023-04-27 06:16:40 |
| R67.htm | 15843 | 2023-04-27 06:16:40 |
| R68.htm | 47125 | 2023-04-27 06:16:40 |
| R69.htm | 11346 | 2023-04-27 06:16:40 |
| R7.htm | 90536 | 2023-04-27 06:16:40 |
| R70.htm | 93509 | 2023-04-27 06:16:40 |
| R71.htm | 37436 | 2023-04-27 06:16:40 |
| R72.htm | 72579 | 2023-04-27 06:16:40 |
| R73.htm | 60490 | 2023-04-27 06:16:40 |
| R74.htm | 16989 | 2023-04-27 06:16:40 |
| R75.htm | 18133 | 2023-04-27 06:16:40 |
| R76.htm | 16428 | 2023-04-27 06:16:40 |
| R77.htm | 12001 | 2023-04-27 06:16:40 |
| R78.htm | 53635 | 2023-04-27 06:16:40 |
| R79.htm | 49464 | 2023-04-27 06:16:40 |
| R8.htm | 43402 | 2023-04-27 06:16:40 |
| R80.htm | 40575 | 2023-04-27 06:16:40 |
| R81.htm | 34147 | 2023-04-27 06:16:40 |
| R82.htm | 31493 | 2023-04-27 06:16:40 |
| R83.htm | 10534 | 2023-04-27 06:16:40 |
| R84.htm | 88623 | 2023-04-27 06:16:40 |
| R85.htm | 35162 | 2023-04-27 06:16:40 |
| R86.htm | 19593 | 2023-04-27 06:16:40 |
| R87.htm | 40832 | 2023-04-27 06:16:40 |
| R88.htm | 59463 | 2023-04-27 06:16:40 |
| R89.htm | 38838 | 2023-04-27 06:16:40 |
| R9.htm | 10886 | 2023-04-27 06:16:40 |
| R90.htm | 38109 | 2023-04-27 06:16:40 |
| R91.htm | 75516 | 2023-04-27 06:16:40 |
| R92.htm | 139373 | 2023-04-27 06:16:40 |
| R93.htm | 8060 | 2023-04-27 06:16:40 |
| report.css | 2768 | 2023-04-27 06:16:40 |
| Show.js | 1086 | 2023-04-27 06:16:40 |