<SEC-DOCUMENT>0000352541-19-000091-index.html : 20190926
<SEC-HEADER>0000352541-19-000091.hdr.sgml : 20190926
<ACCEPTANCE-DATETIME>20190926074355
ACCESSION NUMBER:		0000352541-19-000091
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		21
CONFORMED PERIOD OF REPORT:	20190919
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190926
DATE AS OF CHANGE:		20190926

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLIANT ENERGY CORP
		CENTRAL INDEX KEY:			0000352541
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				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:		191115543

	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

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INTERSTATE POWER & LIGHT CO
		CENTRAL INDEX KEY:			0000052485
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				420331370
		STATE OF INCORPORATION:			IA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04117
		FILM NUMBER:		191115542

	BUSINESS ADDRESS:	
		STREET 1:		200 FIRST ST SE
		STREET 2:		ALLIANT ENERGY TOWER
		CITY:			CEDAR RAPIDS
		STATE:			IA
		ZIP:			52401
		BUSINESS PHONE:		3193984411

	MAIL ADDRESS:	
		STREET 1:		200 FIRST ST SE
		STREET 2:		ALLIANT ENERGY TOWER
		CITY:			CEDAR RAPIDS
		STATE:			IA
		ZIP:			52401

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IES UTILITIES INC
		DATE OF NAME CHANGE:	20020103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IES UTILITIES INC
		DATE OF NAME CHANGE:	19940107

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IOWA ELECTRIC LIGHT & POWER CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<TYPE>8-K
<SEQUENCE>1
<FILENAME>lnt092620198-k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: lnt092620198-k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.1
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<FILENAME>lnt092620198-kex11.htm
<DESCRIPTION>EXHIBIT 1.1
<TEXT>
Document 2 - file: lnt092620198-kex11.htm

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<DOCUMENT>
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<SEQUENCE>3
<FILENAME>lnt092620198-kex41.htm
<DESCRIPTION>EXHIBIT 4.1
<TEXT>
Document 3 - file: lnt092620198-kex41.htm

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<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>4
<FILENAME>lnt092620198-kex51.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 4 - file: lnt092620198-kex51.htm

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<TYPE>EX-5.2
<SEQUENCE>5
<FILENAME>lnt092620198-kex52.htm
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Document 5 - file: lnt092620198-kex52.htm

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<TYPE>EX-99.1
<SEQUENCE>6
<FILENAME>lnt092620198-kex991.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 6 - file: lnt092620198-kex991.htm

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<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>7
<FILENAME>lnt-20190919.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
Document 7 - file: lnt-20190919.xsd

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<TYPE>EX-101.CAL
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Document 8 - file: lnt-20190919_cal.xml

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<TYPE>EX-101.DEF
<SEQUENCE>9
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<TEXT>
Document 9 - file: lnt-20190919_def.xml

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<TYPE>EX-101.LAB
<SEQUENCE>10
<FILENAME>lnt-20190919_lab.xml
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<TEXT>
Document 10 - file: lnt-20190919_lab.xml

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<TYPE>EX-101.PRE
<SEQUENCE>11
<FILENAME>lnt-20190919_pre.xml
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Document 11 - file: lnt-20190919_pre.xml

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<SEQUENCE>12
<FILENAME>alliantenergylogo8k092619.jpg
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Document 12 - file: alliantenergylogo8k092619.jpg

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<SEQUENCE>13
<FILENAME>exhibitimage.jpg
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Document 13 - file: exhibitimage.jpg

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Document 14 - RAW XML: lnt092620198-k_htm.xml

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<TYPE>EXCEL
<SEQUENCE>15
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 15 - file: Financial_Report.xlsx

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<TYPE>XML
<SEQUENCE>16
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Document 16 - file: FilingSummary.html

Document 16 - RAW XML: FilingSummary.xml

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Document 17 - file: Show.js

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<SEQUENCE>18
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<TEXT>
Document 18 - file: R1.htm

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<TYPE>JSON
<SEQUENCE>20
<FILENAME>MetaLinks.json
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<TEXT>
Document 20 - file: MetaLinks.json

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<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>21
<FILENAME>0000352541-19-000091-xbrl.zip
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<TEXT>
Document 21 - file: 0000352541-19-000091-xbrl.zip

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<SEQUENCE>22
<FILENAME>report.css
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Document 22 - file: report.css

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