Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2022

Schedule of Affiliate Receivables and Payables

The following table presents the affiliate balances related to income taxes for Ameren Missouri and Ameren Illinois as of September 30, 2022, and December 31, 2021:


	September 30, 2022				December 31, 2021
	Ameren Missouri		Ameren Illinois		Ameren Missouri		Ameren Illinois
Income taxes payable to parent(a)	$	—	$	72	$	—	$	8
Income taxes receivable from parent(b)	12		—		27		18

(a)Included in “Accounts payable – affiliates” on the balance sheet.

(b)Included in “Accounts receivable – affiliates” on the balance sheet.

Schedule of Related Party Transactions

The following table presents the impact on Ameren Missouri and Ameren Illinois of related-party transactions for the three and nine months ended September 30, 2022 and 2021:


				Three Months				Nine Months
Agreement	Income Statement Line Item			Ameren Missouri		Ameren Illinois		Ameren Missouri		Ameren Illinois
Ameren Missouri power supply	Operating Revenues	2022	$	2	$	(a)	$	7	$	(a)
agreements with Ameren Illinois		2021		5		(a)		10		(a)
Ameren Missouri and Ameren Illinois	Operating Revenues	2022	$	6	$	(b)	$	18	$	(b)
rent and facility services		2021		6		(b)		20		(b)
Ameren Missouri and Ameren Illinois miscellaneous	Operating Revenues	2022	$	(b)	$	(b)	$	(b)	$	1
services		2021		(b)		3		(b)		5
Total Operating Revenues		2022	$	8	$	(b)	$	25	$	1
		2021		11		3		30		5
Ameren Illinois power supply	Purchased Power	2022	$	(a)	$	2	$	(a)	$	7
agreements with Ameren Missouri		2021		(a)		5		(a)		10
Ameren Missouri and Ameren Illinois	Purchased Power	2022	$	1	$	(b)	$	1	$	(b)
transmission services from ATXI		2021		1		(b)		3		1
Total Purchased Power		2022	$	1	$	2	$	1	$	7
		2021		1		5		3		11
Ameren Missouri and Ameren Illinois	Other Operations and Maintenance	2022	$	(b)	$	1	$	(b)	$	2
rent and facility services		2021		(b)		1		(b)		3
Ameren Services support services	Other Operations and Maintenance	2022	$	38	$	36	$	109	$	103
agreement		2021		41		37		110		101
Total Other Operations and		2022	$	38	$	37	$	109	$	105
Maintenance		2021		41		38		110		104
Money pool borrowings (advances)	(Interest Charges)/Other Income, Net	2022	$	(b)	$	(b)	$	(b)	$	(b)
		2021		(b)		(b)		(b)		(b)

(a)Not applicable.

(b)Amount less than $1 million.