Investments

6 Months Ended

Jun. 30, 2023

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 six months ended June 30 was as follows (in millions):

	Three Months		Six Months
	2023	2022	2023	2022
ATC Holdings	($12)	($11)	($25)	($23)
Other	(2)	(5)	(6)	(9)
	($14)	($16)	($31)	($32)