v3.26.3
Consolidated Statement of Cash Flows - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Cash Flows From Operating Activities:    
Net income $ 1,351 $ 1,208
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 1,277 1,199
Amortization of nuclear fuel 63 39
Amortization of debt issuance costs and premium/discounts 15 14
Deferred income taxes and tax credits, net 281 255
Allowance for equity funds used during construction (104) (60)
Stock-based compensation costs 24 21
Other (7) 29
Changes in assets and liabilities:    
Receivables (411) (356)
Inventories (97) (41)
Accounts and wages payable (138) (244)
Taxes accrued 156 307
Regulatory assets and liabilities (220) 97
Assets, other (48) (29)
Liabilities, other 130 72
Pension and other postretirement benefits (79) (114)
Net cash provided by operating activities 2,193 2,397
Cash Flows From Investing Activities:    
Capital expenditures (4,089) (3,118)
Nuclear fuel expenditures (26) (20)
Purchases of securities – nuclear decommissioning trust fund (513) (373)
Sales and maturities of securities – nuclear decommissioning trust fund 488 348
Other (14) 51
Net cash used in investing activities (4,154) (3,112)
Cash Flows From Financing Activities:    
Dividends on common stock (622) (576)
Dividends paid to noncontrolling interest holders (4) (4)
Short-term debt, net (147) (239)
Maturities and extinguishment of long-term debt (378) (324)
Issuances of long-term debt 3,234 1,960
Issuances of common stock 31 35
Employee payroll taxes related to stock-based compensation (14) (13)
Debt issuance costs (34) (17)
Net cash provided by financing activities 2,066 822
Net change in cash, cash equivalents, and restricted cash 105 107
Cash, cash equivalents, and restricted cash at beginning of year 420 328
Cash, cash equivalents, and restricted cash at end of period 525 435
Union Electric Company    
Cash Flows From Operating Activities:    
Net income 818 713
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 717 673
Amortization of nuclear fuel 63 39
Amortization of debt issuance costs and premium/discounts 7 7
Deferred income taxes and tax credits, net 93 167
Allowance for equity funds used during construction (80) (37)
Other 9 7
Changes in assets and liabilities:    
Receivables (249) (245)
Inventories (55) 3
Accounts and wages payable (158) (240)
Taxes accrued 215 336
Regulatory assets and liabilities (98) (155)
Assets, other (68) 21
Liabilities, other 93 26
Pension and other postretirement benefits (25) (42)
Net cash provided by operating activities 1,282 1,273
Cash Flows From Investing Activities:    
Capital expenditures (2,750) (1,873)
Nuclear fuel expenditures (26) (20)
Purchases of securities – nuclear decommissioning trust fund (513) (373)
Sales and maturities of securities – nuclear decommissioning trust fund 488 348
Money pool advances, net 0  
Money pool advances, net   43
Other (19) 0
Net cash used in investing activities (2,820) (1,875)
Cash Flows From Financing Activities:    
Dividends on common stock 0 (125)
Dividends on preferred stock (3) (3)
Short-term debt, net (371) 259
Money pool borrowings, net 0 51
Maturities and extinguishment of long-term debt (12) 0
Issuances of long-term debt 1,395 500
Capital contributions from parent 550 0
Debt issuance costs (15) (4)
Net cash provided by financing activities 1,544 678
Net change in cash, cash equivalents, and restricted cash 6 76
Cash, cash equivalents, and restricted cash at beginning of year 68 17
Cash, cash equivalents, and restricted cash at end of period 74 93
Ameren Illinois Company    
Cash Flows From Operating Activities:    
Net income 548 522
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 517 484
Amortization of debt issuance costs and premium/discounts 3 3
Deferred income taxes and tax credits, net 115 30
Allowance for equity funds used during construction (20) (21)
Other 34 24
Changes in assets and liabilities:    
Receivables (166) (129)
Inventories (42) (45)
Accounts and wages payable 28 (1)
Taxes accrued (11) 26
Regulatory assets and liabilities (124) 255
Assets, other (16) (49)
Liabilities, other 65 68
Pension and other postretirement benefits (43) (50)
Net cash provided by operating activities 888 1,117
Cash Flows From Investing Activities:    
Capital expenditures (1,088) (1,127)
Money pool advances, net 0 (51)
Other (2) (3)
Net cash used in investing activities (1,090) (1,181)
Cash Flows From Financing Activities:    
Dividends on common stock (265) (185)
Dividends on preferred stock (1) (1)
Short-term debt, net 171 (88)
Money pool borrowings, net 0 (37)
Maturities and extinguishment of long-term debt 0 (300)
Issuances of long-term debt 400 711
Debt issuance costs (4) (8)
Net cash provided by financing activities 301 92
Net change in cash, cash equivalents, and restricted cash 99 28
Cash, cash equivalents, and restricted cash at beginning of year 344 302
Cash, cash equivalents, and restricted cash at end of period $ 443 $ 330