Related Party Transactions

6 Months Ended

Jun. 30, 2022

RELATED-PARTY TRANSACTIONS

In the ordinary course of business, Ameren Missouri and Ameren Illinois have engaged in, and may in the future engage in, affiliate transactions. These transactions primarily consist of natural gas and power purchases and sales, services received or rendered, and borrowings and lendings. Transactions between Ameren’s subsidiaries are reported as affiliate transactions on their individual financial statements, but those transactions are eliminated in consolidation for Ameren’s consolidated financial statements. For a discussion of material related-party agreements and money pool arrangements, see Note 13 – Related-party Transactions and Note 4 – Short-term Debt and Liquidity under Part II, Item 8, of the Form 10-K.

Support Services Agreements

Ameren Missouri and Ameren Illinois had long-term receivables included in “Other assets” from Ameren Services of $80 million and $83 million, respectively, as of June 30, 2022, and $77 million and $80 million, respectively, as of December 31, 2021, related to Ameren Services’ allocated portion of Ameren’s pension and postretirement benefit plans.

Tax Allocation Agreement

See Note 1 – Summary of Significant Accounting Policies under Part II, Item 8, of the Form 10-K for a discussion of the tax allocation agreement. The following table presents the affiliate balances related to income taxes for Ameren Missouri and Ameren Illinois as of June 30, 2022, and December 31, 2021:


	June 30, 2022				December 31, 2021
	Ameren Missouri		Ameren Illinois		Ameren Missouri		Ameren Illinois
Income taxes payable to parent(a)	$	—	$	82	$	—	$	8
Income taxes receivable from parent(b)	45		—		27		18

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

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

Effects of Related-party Transactions on the Statement of Income

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


				Three Months				Six Months
Agreement	Income Statement Line Item			Ameren Missouri		Ameren Illinois		Ameren Missouri		Ameren Illinois
Ameren Missouri power supply	Operating Revenues	2022	$	1	$	(a)	$	5	$	(a)
agreements with Ameren Illinois		2021		3		(a)		5		(a)
Ameren Missouri and Ameren Illinois	Operating Revenues	2022	$	6	$	(b)	$	12	$	(b)
rent and facility services		2021		7		(b)		14		(b)
Ameren Missouri and Ameren Illinois miscellaneous	Operating Revenues	2022	$	(b)	$	(b)	$	(b)	$	1
support services and other services provided to ATXI		2021		(b)		2		(b)		2
Total Operating Revenues		2022	$	7	$	(b)	$	17	$	1
		2021		10		2		19		2
Ameren Illinois power supply	Purchased Power	2022	$	(a)	$	1	$	(a)	$	5
agreements with Ameren Missouri		2021		(a)		3		(a)		5
Ameren Missouri and Ameren Illinois	Purchased Power	2022	$	(b)	$	(b)	$	(b)	$	(b)
transmission services from ATXI		2021		1		1		2		1
Total Purchased Power		2022	$	(b)	$	1	$	(b)	$	5
		2021		1		4		2		6
Ameren Missouri and Ameren Illinois	Other Operations and Maintenance	2022	$	(b)	$	(b)	$	(b)	$	1
rent and facility services		2021		(b)		1		(b)		2
Ameren Services support services	Other Operations and Maintenance	2022	$	33	$	32	$	71	$	67
agreement		2021		34		31		69		64
Total Other Operations and		2022	$	33	$	32	$	71	$	68
Maintenance		2021		34		32		69		66
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.