Other Income and Expenses (Tables)

6 Months Ended

Jun. 30, 2021

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 three and six months ended June 30, 2021 and 2020:

	Three Months				Six Months
	2021		2020		2021		2020
Ameren:
Allowance for equity funds used during construction	$	9	$	9	$	16	$	13
Interest income on industrial development revenue bonds	6		6		12		12
Other interest income	—		1		1		2
Non-service cost components of net periodic benefit income(a)	34		30		68		53
Miscellaneous income	7		7		11		9
Donations	(1)		(1)		(4)		(14)		(b)
Miscellaneous expense	(6)		(4)		(9)		(6)
Total Other Income, Net	$	49	$	48	$	95	$	69
Ameren Missouri:
Allowance for equity funds used during construction	$	6	$	6	$	10	$	8
Interest income on industrial development revenue bonds	6		7		12		12
Non-service cost components of net periodic benefit income(a)	14		14		28		19
Miscellaneous income	—		1		1		2
Donations	(1)		(1)		(1)		(9)		(b)
Miscellaneous expense	(1)		(2)		(3)		(3)
Total Other Income, Net	$	24	$	25	$	47	$	29
Ameren Illinois:
Allowance for equity funds used during construction	$	3	$	3	$	6	$	5
Interest income	—		1		1		2
Non-service cost components of net periodic benefit income	14		11		28		24
Miscellaneous income	3		4		3		5
Donations	—		(1)		(3)		(5)
Miscellaneous expense	(4)		(1)		(5)		(3)
Total Other Income, Net	$	16	$	17	$	30	$	28

(a)For the three and six months ended June 30, 2021, the non-service cost components of net periodic benefit income were adjusted by amounts deferred of $(3) million in both periods, 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 $(3) million and $3 million for the three and six months ended June 30, 2020.

(b)Includes $8 million pursuant to Ameren Missouri’s March 2020 electric rate order. See Note 2 – Rate and Regulatory Matters under Part II, Item 8, in the Form 10-K for additional information.