Related Party Transactions (Tables)

6 Months Ended

Jun. 30, 2021

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 June 30, 2021, and December 31, 2020:


	June 30, 2021				December 31, 2020
	Ameren Missouri		Ameren Illinois		Ameren Missouri		Ameren Illinois
Income taxes payable to parent(a)	$	47	$	26	$	—	$	6
Income taxes receivable from parent(b)	—		—		9		15

(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 effect on Ameren Missouri and Ameren Illinois of related-party transactions for the three and six months ended June 30, 2021 and 2020:


				Three Months				Six Months
Agreement	Income Statement Line Item			Ameren Missouri		Ameren Illinois		Ameren Missouri		Ameren Illinois
Ameren Missouri power supply	Operating Revenues	2021	$	3	$	(a)	$	5	$	(a)
agreements with Ameren Illinois		2020		3		(a)		6		(a)
Ameren Missouri and Ameren Illinois	Operating Revenues	2021	$	7	$	(b)	$	14	$	(b)
rent and facility services		2020		6		(b)		13		1
Ameren Missouri and Ameren Illinois miscellaneous	Operating Revenues	2021	$	(b)	$	2	$	(b)	$	2
support services and services provided to ATXI		2020		1		(b)		1		(b)
Total Operating Revenues		2021	$	10	$	2	$	19	$	2
		2020		10		(b)		20		1
Ameren Illinois power supply	Purchased Power	2021	$	(a)	$	3	$	(a)	$	5
agreements with Ameren Missouri		2020		(a)		3		(a)		6
Ameren Missouri and Ameren Illinois	Purchased Power	2021	$	1	$	1	$	2	$	1
transmission services from ATXI		2020		(a)		1		(a)		1
Total Purchased Power		2021	$	1	$	4	$	2	$	6
		2020		(a)		4		(a)		7
Ameren Missouri and Ameren Illinois	Other Operations and Maintenance	2021	$	(b)	$	1	$	(b)	$	2
rent and facility services		2020		(b)		1		(b)		2


				Three Months				Six Months
Agreement	Income Statement Line Item			Ameren Missouri		Ameren Illinois		Ameren Missouri		Ameren Illinois
Ameren Services support services	Other Operations and Maintenance	2021	$	34	$	31	$	69	$	64
agreement		2020		32		31		67		64
Total Other Operations and		2021	$	34	$	32	$	69	$	66
Maintenance		2020		32		32		67		66
Money pool borrowings (advances)	(Interest Charges)/Other Income, Net	2021	$	(b)	$	(b)	$	(b)	$	(b)
		2020		(b)		(b)		(b)		(b)

(a)Not applicable.

(b)Amount less than $1 million.