Investments

9 Months Ended

Sep. 30, 2021

Schedule of Equity Method Investments [Line Items]

Investments

INVESTMENTS

Unconsolidated Equity Investments - Alliant Energy’s equity (income) loss from unconsolidated investments accounted for under the equity method of accounting for the three and nine months ended September 30 was as follows (in millions):

	Three Months		Nine Months
	2021	2020	2021	2020
ATC Holdings	($12)	($11)	($34)	($36)
Other	(1)	(4)	(13)	(10)
	($13)	($15)	($47)	($46)