Interest (Charges) Income

[Table of Co](#i2c056a9f8317485ea6601862f5b0559f_7)[ntents](#i2c056a9f8317485ea6601862f5b0559f_7)Effects of Related-party Transactions on the Statement of IncomeThe following table presents the impact on Ameren Missouri and Ameren Illinois of related-party transactions for the years ended December 31, 2021, 2020, and 2019. It is based primarily on the agreements discussed above and the money pool arrangements discussed in Note 4 – Short-term Debt and Liquidity.

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| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
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| Agreement | Income Statement Line Item |  |  |  | AmerenMissouri |  | AmerenIllinois |
| Ameren Missouri power supply agreements | Operating Revenues |  | 2021 | $ | 16  |  | $ | (a) |
| with Ameren Illinois |  |  | 2020 |  | 11  |  |  | (a) |
|   |   |  | 2019 |  | 3  |  |  | (a) |
| Ameren Missouri and Ameren Illinois | Operating Revenues |  | 2021 |  | 26  |  |  | 1  |  |
| rent and facility services |  |  | 2020 |  | 26  |  |  | 1  |  |
|   |   |  | 2019 |  | 27  |  |  | 2  |  |
| Ameren Missouri and Ameren Illinois miscellaneous | Operating Revenues |  | 2021 |  | (b) |  | 5  |  |
| support services and services provided to ATXI |  |  | 2020 |  | 3  |  |  | 1  |  |
|  |  |  | 2019 |  | 1  |  |  | 2  |  |
| Ameren Missouri software licensing | Operating Revenues |  | 2021 |  | (a) |  | (a) |
| with Ameren Illinois |  |  | 2020 |  | (a) |  | (a) |
|  |  |  | 2019 |  | (a) |  | 19  |  |
| Total Operating Revenues |  |  | 2021 | $ | 42  |  | $ | 6  |  |
|  |  |  | 2020 |  | 40  |  |  | 2  |  |
|   |   |  | 2019 |  | 31  |  |  | 23  |  |
| Ameren Illinois power supply | Purchased Power |  | 2021 | $ | (a) | $ | 16  |  |
| agreements with Ameren Missouri |  |  | 2020 |  | (a) |  | 11  |  |
|   |   |  | 2019 |  | (a) |  | 3  |  |
| Ameren Missouri and Ameren Illinois | Purchased Power |  | 2021 |  | 4  |  |  | 1  |  |
| transmission services from ATXI |  |  | 2020 |  | (a) |  | 2  |  |
|  |  |  | 2019 |  | (a) |  | 2  |  |
| Total Purchased Power |  |  | 2021 | $ | 4  |  | $ | 17  |  |
|  |  |  | 2020 |  | (a) |  | 13  |  |
|  |  |  | 2019 |  | (a) |  | 5  |  |
| Ameren Missouri and Ameren Illinois | Other Operations and  |  | 2021 | $ | 1  |  | $ | 4  |  |
| rent and facility services | Maintenance |  | 2020 |  | (b) |  | 4  |  |
|  |  |  | 2019 |  | 2  |  |  | 5  |  |
| Ameren Services support services | Other Operations and |  | 2021 |  | 147  |  |  | 137  |  |
| agreement | Maintenance |  | 2020 |  | 140  |  |  | 133  |  |
|   |   |  | 2019 |  | 135  |  |  | 127  |  |
| Total Other Operations and |  |  | 2021 | $ | 148  |  | $ | 141  |  |
| Maintenance Expenses |  |  | 2020 |  | 140  |  |  | 137  |  |
|   |   |  | 2019 |  | 137  |  |  | 132  |  |
| Money pool borrowings (advances) | (Interest Charges) |  | 2021 | $ | (b) | $ | (b) |
|  | Other Income, Net |  | 2020 |  | (b) |  | (b) |
|   |   |  | 2019 |  | (b) |  | (b) |

(a)Not applicable.(b)Amount less than $1 million.NOTE 14 – COMMITMENTS AND CONTINGENCIESWe are involved in legal, tax, and regulatory proceedings before various courts, regulatory commissions, authorities, and governmental agencies with respect to matters that arise in the ordinary course of business, some of which involve substantial amounts of money. We believe that the final disposition of these proceedings, except as otherwise disclosed in the notes to our financial statements, will not have a material adverse effect on our results of operations, financial position, or liquidity.See also Note 1 – Summary of Significant Accounting Policies, Note 2 – Rate and Regulatory Matters, Note 9 – Callaway Energy Center, Note 13 – Related-party Transactions, and Note 15 – Supplemental Information in this report.147
