Other Income, Net (Tables)

9 Months Ended

Sep. 30, 2023

Other Nonoperating Income (Expense) [Abstract]

The following table presents the components of “Other Income, Net” in the Ameren Companies’ statements of income for the three and nine months ended September 30, 2023 and 2022:


	Three Months				Nine Months
	2023		2022		2023		2022
Ameren:

Allowance for equity funds used during construction	$	16	$	12	$	39	$	31
Interest income on industrial development revenue bonds	—		6		1		18
Other interest income	6		2		23		6

Non-service cost components of net periodic benefit income(a)	84		45		211		138
Miscellaneous income	1		3		4		8
Earnings (losses) related to equity method investments	—		(3)		2		1
Donations	(1)		(1)		(5)		(5)
Miscellaneous expense	(5)		(6)		(14)		(17)
Total Other Income, Net	$	101	$	58	$	261	$	180
Ameren Missouri:

Allowance for equity funds used during construction	$	8	$	7	$	20	$	17
Interest income on industrial development revenue bonds	—		6		1		18
Other interest income	3		1		8		2
Non-service cost components of net periodic benefit income(a)	34		13		62		41
Miscellaneous income	1		1		3		3
Donations	—		—		(2)		(2)
Miscellaneous expense	(2)		(3)		(7)		(7)
Total Other Income, Net	$	44	$	25	$	85	$	72
Ameren Illinois:

Allowance for equity funds used during construction	$	5	$	5	$	15	$	14
Interest income	4		1		14		4

Non-service cost components of net periodic benefit income	31		21		93		63
Miscellaneous income	—		3		2		5
Donations	(1)		(1)		(3)		(3)
Miscellaneous expense	(2)		(3)		(6)		(8)
Total Other Income, Net	$	37	$	26	$	115	$	75

(a)For the three and nine months ended September 30, 2023 the non-service cost components of net periodic benefit income were adjusted by amounts deferred of $(2) million and $32 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. The deferral was $5 million and $16 million, respectively, for the three and nine months ended September 30, 2022. See Note 11 – Retirement Benefits for additional information.