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| 0000072741-22-000019-index.html | 2022-05-06 14:34:30 | |
| 0000072741-22-000019.txt | 2022-05-06 14:34:30 | |
 0000072741-22-000019-xbrl.zip | 573641 | 2022-05-06 14:34:30 |
| es-20220331.htm | 4248112 | 2022-05-06 14:34:30 |
| es-20220331.xsd | 89394 | 2022-05-06 14:34:30 |
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| es-20220331_htm.xml | 3951881 | 2022-05-06 14:34:30 |
| es-20220331_lab.xml | 809425 | 2022-05-06 14:34:30 |
| es-20220331_pre.xml | 881757 | 2022-05-06 14:34:30 |
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| Financial_Report.xlsx | 175740 | 2022-05-06 14:34:30 |
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| q1202210q-ex311xeversource.htm | 10617 | 2022-05-06 14:34:30 |
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| report.css | 2768 | 2022-05-06 14:34:30 |
| Show.js | 1086 | 2022-05-06 14:34:30 |