Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000352541-21-000019-index-headers.html | 2021-02-18 19:21:22 | |
| 0000352541-21-000019-index.html | 2021-02-18 19:21:22 | |
| 0000352541-21-000019.txt | 2021-02-18 19:21:22 | |
 0000352541-21-000019-xbrl.zip | 37031 | 2021-02-18 19:21:22 |
 alliantenergylogo1.jpg | 408716 | 2021-02-18 19:21:22 |
| FilingSummary.xml | 1791 | 2021-02-18 19:21:22 |
| Financial_Report.xlsx | 6008 | 2021-02-18 19:21:22 |
| lnt-20210218.htm | 46461 | 2021-02-18 19:21:22 |
| lnt-20210218.xsd | 3093 | 2021-02-18 19:21:22 |
| lnt-20210218_cal.xml | 788 | 2021-02-18 19:21:22 |
| lnt-20210218_def.xml | 15349 | 2021-02-18 19:21:22 |
| lnt-20210218_htm.xml | 22998 | 2021-02-18 19:21:22 |
| lnt-20210218_lab.xml | 30171 | 2021-02-18 19:21:22 |
| lnt-20210218_pre.xml | 16006 | 2021-02-18 19:21:22 |
| lnt021820218-kexh991.htm | 417429 | 2021-02-18 19:21:22 |
| MetaLinks.json | 21494 | 2021-02-18 19:21:22 |
| R1.htm | 49453 | 2021-02-18 19:21:22 |
| report.css | 2767 | 2021-02-18 19:21:22 |
| Show.js | 1085 | 2021-02-18 19:21:22 |