Short-Term Debt And Liquidity (Tables)

12 Months Ended

Dec. 31, 2021

Schedule Of Maximum Aggregate Amount Available On Credit Agreements

The following table presents the maximum aggregate amount available to each borrower under each facility:


	Missouri Credit Agreement		Illinois Credit Agreement
Ameren (parent)	$	900	$	500
Ameren Missouri	850		(a)
Ameren Illinois	(a)		800

(a)Not applicable.

Schedule of Commercial Paper

The following table summarizes the activity and relevant interest rates for Ameren (parent)’s, Ameren Missouri’s, and Ameren Illinois’ commercial paper issuances and borrowings under the Credit Agreements in the aggregate for the years ended December 31, 2021 and 2020:


	Ameren (parent)			Ameren Missouri				Ameren Illinois			Ameren Consolidated
2021
Average daily amount outstanding	$	387		$	99			$	118		$	604
Commercial paper issuances outstanding at period-end	277			165				103			545
Weighted-average interest rate	0.22		%	0.22		%		0.21		%	0.22		%
Peak amount outstanding during period(a)	$	650		$	546			$	485		$	1,134
Peak interest rate	0.38		%	0.35		%		0.35		%	0.38		%
2020
Average daily amount outstanding	$	108		$	109			$	46		$	263
Commercial paper issuances outstanding at period-end	490			—				—			490
Weighted-average interest rate	1.04		%	1.73		%		0.97		%	1.31		%
Peak amount outstanding during period(a)	$	490		$	573			$	250		$	908
Peak interest rate	3.30		%	5.05		%	(b)	3.40		%	5.05		%	(b)

(a) The timing of peak outstanding commercial paper issuances and borrowings under the Credit Agreements varies by company. Therefore, the sum of individual company peak amounts may not equal the Ameren consolidated peak amount for the period.

(b) Ameren’s and Ameren Missouri’s peak interest rates were affected by temporary disruptions in the commercial paper market in the first quarter of 2020.