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Schedule I - Condensed Financial Information Of Parent
 12 Months Ended
Dec. 31, 2024
Condensed Financial Information Disclosure [Abstract]  
Condensed Financial Information Of Parent
SCHEDULE I – CONDENSED FINANCIAL INFORMATION OF PARENT
AMEREN CORPORATION
CONDENSED STATEMENT OF INCOME AND COMPREHENSIVE INCOME
For the Years Ended December 31, 2024, 2023, and 2022
(In millions)202420232022
Operating revenues$— $— $— 
Operating expenses17 22 15 
Operating loss(17)(22)(15)
Equity in earnings of subsidiaries1,271 1,245 1,161 
Interest income from affiliates14 10 2 
Total other income (expense), net3 (11)(13)
Interest charges(162)(119)(86)
Income tax benefit61 49 25 
Net Income Attributable to Ameren Common Shareholders$1,170 $1,152 $1,074 
Net Income Attributable to Ameren Common Shareholders$1,170 $1,152 $1,074 
Other Comprehensive Income (Loss), Net of Taxes:
Pension and other postretirement benefit plan activity, net of income taxes (benefit) of $—, $(2), and $(4), respectively
(3)(5)(14)
Unrealized net gain on derivative hedging instruments, net of income taxes of $—, $—, and $—, respectively
3 — — 
Comprehensive Income Attributable to Ameren Common Shareholders$1,170 $1,147 $1,060 
SCHEDULE I – CONDENSED FINANCIAL INFORMATION OF PARENT
AMEREN CORPORATION
CONDENSED BALANCE SHEET
(In millions, except per share amounts)December 31, 2024December 31, 2023
Assets:
Cash and cash equivalents$— $16 
Advances to money pool103 598 
Accounts receivable – affiliates41 20 
Miscellaneous accounts and notes receivable35 31 
Mark-to-market derivative assets3 — 
Total current assets182 665 
Investments in subsidiaries16,262 14,573 
Investments in subsidiary debt securities44 — 
Accumulated deferred income taxes, net98 44 
Other assets155 149 
Total assets
$16,741 $15,431 
Liabilities and Shareholders’ Equity:
Current maturities of long-term debt$— $450 
Short-term debt1,055 — 
Accounts payable— 2 
Taxes accrued7 10 
Accounts payable – affiliates49 100 
Other current liabilities54 45 
Total current liabilities1,165 607 
Long-term debt, net3,383 3,379 
Pension and other postretirement benefits18 19 
Other deferred credits and liabilities73 77 
Total liabilities4,639 4,082 
Commitments and Contingencies (Note 4)
Shareholders’ Equity:
Common stock, $.01 par value, 400.0 shares authorized – shares outstanding of 269.9 and 266.3, respectively
3 3 
Other paid-in capital, principally premium on common stock7,513 7,216 
Retained earnings4,592 4,136 
Accumulated other comprehensive loss(6)(6)
Total shareholders’ equity12,102 11,349 
Total liabilities and shareholders’ equity$16,741 $15,431 
SCHEDULE I – CONDENSED FINANCIAL INFORMATION OF PARENT
AMEREN CORPORATION
CONDENSED STATEMENT OF CASH FLOWS
For the Years Ended December 31, 2024, 2023, and 2022
(In millions)202420232022
Net cash provided by (used in) operating activities$(65)$171 $44 
Cash flows from investing activities:
Money pool advances, net495 (530)40 
Notes receivable – ATXI— — 35 
Investments in subsidiaries(557)(109)(30)
Investments in subsidiary debt securities(44)— — 
Other1 5 3 
Net cash provided by (used in) investing activities(105)(634)48 
Cash flows from financing activities:
Dividends on common stock(714)(662)(610)
Short-term debt, net1,054 (475)198 
Maturities of long-term debt(450)— — 
Issuances of long-term debt— 1,298 — 
Issuances of common stock273 346 333 
Employee payroll taxes related to stock-based compensation(8)(20)(16)
Debt issuance costs(1)(8)(1)
Net cash provided by (used in) financing activities154 479 (96)
Net change in cash, cash equivalents, and restricted cash$(16)$16 $(4)
Cash, cash equivalents, and restricted cash at beginning of year16 — 4 
Cash, cash equivalents, and restricted cash at end of year$— $16 $— 
Supplemental information:
Cash dividends received from consolidated subsidiaries$140 $173 $76 
Noncash financing activity – Issuance of common stock for stock-based compensation16 40 31 
Noncash financing activity – Issuance of common stock under the DRPlus7 7 8 
AMEREN CORPORATION (parent company only)
NOTES TO CONDENSED FINANCIAL STATEMENTS December 31, 2024
NOTE 1 – BASIS OF PRESENTATION
Ameren Corporation (parent company only) is a public utility holding company that conducts substantially all of its business operations through its subsidiaries. Ameren Corporation (parent company only) has accounted for its subsidiaries using the equity method. These financial statements are presented on a condensed basis.
See Note 1 – Summary of Significant Accounting Policies and Note 15 – Supplemental Information under Part II, Item 8, of this report for additional information.
NOTE 2 – SHORT-TERM DEBT AND LIQUIDITY
Ameren, Ameren Services, and other non-state-regulated Ameren subsidiaries have the ability, subject to Ameren parent company and applicable regulatory short-term borrowing authorizations, to access funding from the Credit Agreements and the commercial paper programs through a non-state-regulated subsidiary money pool agreement. All participants may borrow from or lend to the non-state-regulated money pool. The total amount available to pool participants from the non-state-regulated subsidiary money pool at any given time is reduced by the amount of borrowings made by participants, but is increased to the extent that the pool participants advance surplus funds to the non-state-regulated subsidiary money pool or remit funds from other external sources. The non-state-regulated subsidiary money pool was established to coordinate and to provide short-term cash and working capital for the participants. Participants receiving a loan under the non-state-regulated subsidiary money pool agreement must repay the principal amount of such loan, together with accrued interest. The rate of interest depends on the composition of internal and external funds in the non-state-regulated subsidiary money pool. Interest revenues related to non-state-regulated money pool advances were $14 million, $10 million, and immaterial in 2024, 2023 and 2022, respectively. Interest charges related to non-state-regulated money pool borrowings were immaterial in 2024, 2023, and 2022.
See Note 4 – Short-term Debt and Liquidity under Part II, Item 8, of this report for a description and details of short-term debt and liquidity needs of Ameren Corporation (parent company only).
NOTE 3 – LONG-TERM OBLIGATIONS
See Note 5 – Long-term Debt and Equity Financings under Part II, Item 8, of this report for additional information on Ameren Corporation’s (parent company only) long-term debt, indenture provisions, forward sale agreements related to common stock, and ATM program.
NOTE 4 – COMMITMENTS AND CONTINGENCIES
See Note 14 – Commitments and Contingencies under Part II, Item 8, of this report for a description of all material contingencies of Ameren Corporation (parent company only).
NOTE 5 – TOTAL OTHER EXPENSE, NET
The following table presents the components of “Total Other Expense, Net” in the Condensed Statement of Income and Comprehensive Income for the years ended December 31, 2024, 2023, and 2022:
(In millions)202420232022
Total other (income) expense, net
Non-service cost components of net periodic benefit income$4 $8 $3 
Donations— (18)(15)
Other expense, net(1)(1)(1)
Total other (income) expense, net$3 $(11)$(13)
Other Income And Expenses OTHER INCOME, NET
The following table presents the components of “Other Income, Net” in the Ameren Companies’ statements of income for the years ended December 31, 2024, 2023, and 2022:
202420232022
Ameren:
Other Income, Net
Allowance for equity funds used during construction$76 $54 $43 
Interest income on industrial development revenue bonds— 1 24 
Other interest income41 32 11 
Non-service cost components of net periodic benefit income(a)
304 295 184 
Miscellaneous income9 7 10 
Gain on extinguishment of debt(b)
16 — — 
Earnings (losses) related to equity method investments(4)1 2 
Donations(5)(24)(26)
Miscellaneous expense(20)(18)(22)
Total Other Income, Net$417 $348 $226 
Ameren Missouri:
Other Income, Net
Allowance for equity funds used during construction$58 $30 $24 
Interest income on industrial development revenue bonds— 1 24 
Other interest income8 10 4 
Non-service cost components of net periodic benefit income(a)
139 97 55 
Miscellaneous income4 3 4 
Donations(2)(2)

(3)
Miscellaneous expense(11)(9)(9)
Total Other Income, Net$196 $130 $99 
Ameren Illinois:
Other Income, Net
Allowance for equity funds used during construction$17 $19 $18 
Other Interest income32 21 7 
Non-service cost components of net periodic benefit income105 124 84 
Miscellaneous income4 4 5 
Donations(3)(4)(8)
Miscellaneous expense(8)(8)(10)
Total Other Income, Net$147 $156 $96 
(a)For the years ended December 31, 2024, 2023, and 2022, the non-service cost components of net periodic benefit income were adjusted by amounts deferred of $(41) million, $27 million, and $22 million, respectively, due to a regulatory tracking mechanism for the difference between the level of such costs incurred by Ameren Missouri under GAAP and the level of such costs included in rates. See Note 10 – Retirement Benefits for additional information.
(b)See Note 5 – Long-term Debt and Equity Financings for additional information on Ameren (parent)’s repurchase of Ameren Missouri’s senior secured notes and first mortgage bonds and Ameren Illinois’ first mortgage bonds that were accounted for as a debt extinguishment.
The following table presents the components of “Total Other Expense, Net” in the Condensed Statement of Income and Comprehensive Income for the years ended December 31, 2024, 2023, and 2022:
(In millions)202420232022
Total other (income) expense, net
Non-service cost components of net periodic benefit income$4 $8 $3 
Donations— (18)(15)
Other expense, net(1)(1)(1)
Total other (income) expense, net$3 $(11)$(13)