<SEC-DOCUMENT>0001193125-25-120808-index.html : 20250515
<SEC-HEADER>0001193125-25-120808.hdr.sgml : 20250515
<ACCEPTANCE-DATETIME>20250515161212
ACCESSION NUMBER:		0001193125-25-120808
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		24
CONFORMED PERIOD OF REPORT:	20250512
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
ITEM INFORMATION:		Unregistered Sales of Equity Securities
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20250515
DATE AS OF CHANGE:		20250515

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLIANT ENERGY CORP
		CENTRAL INDEX KEY:			0000352541
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				391380265
		STATE OF INCORPORATION:			WI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09894
		FILM NUMBER:		25953130

	BUSINESS ADDRESS:	
		STREET 1:		4902 NORTH BILTMORE LANE
		STREET 2:		SUITE 1000
		CITY:			MADISON
		STATE:			WI
		ZIP:			53718-2148
		BUSINESS PHONE:		608-458-3311

	MAIL ADDRESS:	
		STREET 1:		4902 NORTH BILTMORE LANE
		STREET 2:		SUITE 1000
		CITY:			MADISON
		STATE:			WI
		ZIP:			53718-2148

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INTERSTATE ENERGY CORP
		DATE OF NAME CHANGE:	19980427

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WPL HOLDINGS INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d928152d8k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: d928152d8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.1
<SEQUENCE>2
<FILENAME>d928152dex41.htm
<DESCRIPTION>EX-4.1
<TEXT>
Document 2 - file: d928152dex41.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>d928152dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 3 - file: d928152dex991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>4
<FILENAME>d928152dex992.htm
<DESCRIPTION>EX-99.2
<TEXT>
Document 4 - file: d928152dex992.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>5
<FILENAME>lnt-20250512.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
Document 5 - file: lnt-20250512.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>6
<FILENAME>lnt-20250512_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
Document 6 - file: lnt-20250512_lab.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>7
<FILENAME>lnt-20250512_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
Document 7 - file: lnt-20250512_pre.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g928152dsp80.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g928152dsp80.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g928152dsp81.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g928152dsp81.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g928152dsp82.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g928152dsp82.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g928152dsp83.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: g928152dsp83.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>g928152dsp85.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: g928152dsp85.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>g928152dsp86.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: g928152dsp86.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>g928152g0513124351481.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: g928152g0513124351481.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>g928152g0513124417858.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: g928152g0513124417858.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>17
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 17 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>18
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 18 - file: Financial_Report.xlsx

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>19
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 19 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>20
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 20 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>22
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 22 - file: FilingSummary.html

Document 22 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>25
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 25 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>26
<FILENAME>0001193125-25-120808-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 26 - file: 0001193125-25-120808-xbrl.zip

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>27
<FILENAME>d928152d8k_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 27 - file: d928152d8k_htm.html

Document 27 - RAW XML: d928152d8k_htm.xml

</DOCUMENT>
</SEC-DOCUMENT>