Consolidated Statement of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash Flows From Operating Activities:
Net income	$ 915	$ 869
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,016	903
Amortization of nuclear fuel	46	37
Amortization of debt issuance costs and premium/discounts	17	17
Deferred income taxes and investment tax credits, net	137	139
Allowance for equity funds used during construction	(31)	(30)
Stock-based compensation costs	18	17
Other	63	11
Changes in assets and liabilities:
Receivables	(296)	(212)
Inventories	(103)	(73)
Accounts and wages payable	(128)	(143)
Taxes accrued	147	148
Regulatory assets and liabilities	(17)	(340)
Assets, other	(87)	(58)
Liabilities, other	19	(35)
Pension and other postretirement benefits	(49)	(6)
Counterparty collateral, net	(68)	(52)
Net cash provided by operating activities	1,599	1,192
Cash Flows From Investing Activities:
Capital expenditures	(2,437)	(2,613)
Nuclear fuel expenditures	(22)	(19)
Purchases of securities – nuclear decommissioning trust fund	(176)	(411)
Sales and maturities of securities – nuclear decommissioning trust fund	163	404
Other	14	(7)
Net cash used in investing activities	(2,458)	(2,646)
Cash Flows From Financing Activities:
Dividends on common stock	(457)	(423)
Dividends paid to noncontrolling interest holders	(4)	(4)
Short-term debt, net	675	63
Maturities of long-term debt	(450)	0
Issuances of long-term debt	1,118	1,423
Issuances of common stock	29	297
Redemptions of Ameren Illinois preferred stock	0	(13)
Employee payroll taxes related to stock-based compensation	(16)	(17)
Debt issuance costs	(11)	(15)
Other	0	(13)
Net cash provided by financing activities	884	1,298
Net change in cash, cash equivalents, and restricted cash	25	(156)
Cash, cash equivalents, and restricted cash at beginning of year	155	301
Cash, cash equivalents, and restricted cash at end of period	180	145
Union Electric Company
Cash Flows From Operating Activities:
Net income	550	536
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	603	522
Amortization of nuclear fuel	46	37
Amortization of debt issuance costs and premium/discounts	5	5
Deferred income taxes and investment tax credits, net	(17)	(7)
Allowance for equity funds used during construction	(17)	(17)
Other	9	8
Changes in assets and liabilities:
Receivables	(160)	(216)
Inventories	(19)	(19)
Accounts and wages payable	(192)	(145)
Taxes accrued	161	146
Regulatory assets and liabilities	(164)	(164)
Assets, other	(9)	20
Liabilities, other	14	(9)
Pension and other postretirement benefits	(12)	6
Counterparty collateral, net	(72)	(58)
Net cash provided by operating activities	726	645
Cash Flows From Investing Activities:
Capital expenditures	(1,237)	(1,567)
Nuclear fuel expenditures	(22)	(19)
Purchases of securities – nuclear decommissioning trust fund	(176)	(411)
Sales and maturities of securities – nuclear decommissioning trust fund	163	404
Money pool advances, net	0	115
Other	17	0
Net cash used in investing activities	(1,255)	(1,478)
Cash Flows From Financing Activities:
Dividends on preferred stock	(3)	(3)
Short-term debt, net	13	0
Issuances of long-term debt	524	524
Capital contributions from parent	0	183
Debt issuance costs	(6)	(5)
Net cash provided by financing activities	528	699
Net change in cash, cash equivalents, and restricted cash	(1)	(134)
Cash, cash equivalents, and restricted cash at beginning of year	8	145
Cash, cash equivalents, and restricted cash at end of period	7	11
Ameren Illinois Company
Cash Flows From Operating Activities:
Net income	376	315
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	381	349
Amortization of debt issuance costs and premium/discounts	9	10
Deferred income taxes and investment tax credits, net	92	134
Allowance for equity funds used during construction	(14)	(13)
Other	19	8
Changes in assets and liabilities:
Receivables	(138)	8
Inventories	(84)	(54)
Accounts and wages payable	62	12
Taxes accrued	54	(21)
Regulatory assets and liabilities	147	(167)
Assets, other	(75)	(59)
Liabilities, other	35	1
Pension and other postretirement benefits	(29)	(16)
Net cash provided by operating activities	835	507
Cash Flows From Investing Activities:
Capital expenditures	(1,145)	(1,026)
Money pool advances, net	0	(41)
Other	0	(7)
Net cash used in investing activities	(1,145)	(1,074)
Cash Flows From Financing Activities:
Dividends on preferred stock	(1)	(1)
Short-term debt, net	250	0
Money pool borrowings, net	0	(19)
Maturities of long-term debt	(400)	0
Issuances of long-term debt	499	449
Capital contributions from parent	0	145
Redemption of preferred stock	0	(13)
Debt issuance costs	(5)	(6)
Other	0	(13)
Net cash provided by financing activities	343	542
Net change in cash, cash equivalents, and restricted cash	33	(25)
Cash, cash equivalents, and restricted cash at beginning of year	133	147
Cash, cash equivalents, and restricted cash at end of period	$ 166	$ 122