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Filing Detail
Form 8-K - Current report:
SEC Accession No. 0000352541-21-000019
Filing Date
2021-02-19
Accepted
2021-02-18 19:21:22
Documents
16
Period of Report
2021-02-18
Items
Item 2.02: Results of Operations and Financial Condition
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 8-K lnt-20210218.htm   iXBRL 8-K 46461
2 EX-99.1 lnt021820218-kexh991.htm EX-99.1 417429
8 GRAPHIC alliantenergylogo1.jpg GRAPHIC 408716
  Complete submission text file 0000352541-21-000019.txt   1255837

Data Files

Seq Description Document Type Size
3 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT lnt-20210218.xsd EX-101.SCH 3093
4 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT lnt-20210218_cal.xml EX-101.CAL 788
5 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT lnt-20210218_def.xml EX-101.DEF 15349
6 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT lnt-20210218_lab.xml EX-101.LAB 30171
7 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT lnt-20210218_pre.xml EX-101.PRE 16006
9 EXTRACTED XBRL INSTANCE DOCUMENT lnt-20210218_htm.xml XML 22998
Mailing Address 200 FIRST ST SE ALLIANT ENERGY TOWER CEDAR RAPIDS IA 52401
Business Address 200 FIRST ST SE ALLIANT ENERGY TOWER CEDAR RAPIDS IA 52401 3193984411
INTERSTATE POWER & LIGHT CO (Filer) CIK: 0000052485 (see all company filings)

IRS No.: 420331370 | State of Incorp.: IA | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-04117 | Film No.: 21651395
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 N BILTMORE LANE SUITE 1000 MADISON WI 53718-2148
Business Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148 608-458-3311
WISCONSIN POWER & LIGHT CO (Filer) CIK: 0000107832 (see all company filings)

IRS No.: 390714890 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 000-00337 | Film No.: 21651396
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148
Business Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148 608-458-3311
ALLIANT ENERGY CORP (Filer) CIK: 0000352541 (see all company filings)

IRS No.: 391380265 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-09894 | Film No.: 21651397
SIC: 4931 Electric & Other Services Combined