Other Income, Net (Tables)

12 Months Ended

Dec. 31, 2022

Other Nonoperating Income (Expense) [Abstract]

Other Income And Expenses

The following table presents the components of “Other Income, Net” in the Ameren Companies’ statements of income for the years ended December 31, 2022, 2021, and 2020:

	2022		2021		2020
Ameren:
Other Income, Net
Allowance for equity funds used during construction	$	43	$	43	$	32
Interest income on industrial development revenue bonds	24		25		25
Other interest income	11		2		4
Non-service cost components of net periodic benefit income(a)	184		136		116
Miscellaneous income	10		10		10
Earnings related to equity method investments	2		12		3
Donations	(26)		(9)		(25)		(b)
Miscellaneous expense	(22)		(17)		(14)
Total Other Income, Net	$	226	$	202	$	151
Ameren Missouri:
Other Income, Net
Allowance for equity funds used during construction	$	24	$	26	$	19
Interest income on industrial development revenue bonds	24		25		25
Other interest income	4		1		1
Non-service cost components of net periodic benefit income(a)	55		55		46
Miscellaneous income	4		3		4
Donations	(3)		(4)		(12)		(b)
Miscellaneous expense	(9)		(7)		(7)
Total Other Income, Net	$	99	$	99	$	76
Ameren Illinois:
Other Income, Net
Allowance for equity funds used during construction	$	18	$	17	$	13
Interest income	7		1		3
Non-service cost components of net periodic benefit income	84		55		48
Miscellaneous income	5		6		6
Donations	(8)		(5)		(5)
Miscellaneous expense	(10)		(8)		(6)
Total Other Income, Net	$	96	$	66	$	59

(a)For the years ended December 31, 2022, 2021, and 2020, the non-service cost components of net periodic benefit income were adjusted by amounts deferred of $22 million, $(7) million, and $(4) million, respectively, due to a regulatory tracking mechanism for the difference between the level of such costs incurred by Ameren Missouri under GAAP and the level of such costs included in rates.

(b)Includes $8 million pursuant to Ameren Missouri’s March 2020 electric rate order.

The following table presents the components of “Total Other Expense, Net” in the Condensed Statement of Income and Comprehensive Income for the years ended December 31, 2022, 2021, and 2020:

(In millions)	2022		2021		2020
Total Other Expense, Net
Non-service cost components of net periodic benefit income	$	3	$	1	$	1
Donations	(15)		—		(8)
Other expense, net	(1)		(1)		(1)
Total Other Expense, Net	$	(13)	$	—	$	(8)