$AEE
AMEREN CORP Stock $aee

$aee Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000100291023000053 Filed on February 22, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$2.062B	$2.046B	$7.957B
YoY Change	9.74%	32.43%	24.44%
Cost Of Revenue	$703.0M	$715.0M	$2.204B
YoY Change	49.57%	143.2%	110.31%
Gross Profit	$1.359B	$1.331B	$5.753B
YoY Change	-3.55%	6.39%	7.61%
Gross Profit Margin	65.91%	65.05%	72.3%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$350.0M	$422.0M	$1.438B
YoY Change	8.02%	33.54%	17.97%
% of Gross Profit	25.75%	31.71%	25.0%
Operating Expenses	$1.711B	$1.055B	$6.442B
YoY Change	10.53%	0.09%	27.29%
Operating Profit	$351.0M	$276.0M	$1.515B
YoY Change	6.04%	40.1%	13.65%
Interest Expense	$127.0M	-$130.0M	$486.0M
YoY Change	22.12%	51.16%	26.89%
% of Operating Profit	36.18%	-47.1%	32.08%
Other Income/Expense, Net	$78.00M	$46.00M	$226.0M
YoY Change	30.0%	4.55%	11.88%
Pretax Income	$302.0M	$192.0M	$1.255B
YoY Change	5.23%	23.87%	8.94%
Income Tax	$37.00M	$28.00M	$176.0M
% Of Pretax Income	12.25%	14.58%	14.02%
Net Earnings	$265.0M	$163.0M	$1.079B
YoY Change	4.74%	30.4%	8.44%
Net Earnings / Revenue	12.85%	7.97%	13.56%
Basic Earnings Per Share	$1.01		$4.16
Diluted Earnings Per Share	$1.00	$0.63	$4.14
COMMON SHARES
Basic Shares Outstanding	262.0M shares	258.5M shares	258.4M shares
Diluted Shares Outstanding	263.1M shares		259.5M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$10.00M	$250.0M	$250.0M
YoY Change	42.86%	3025.0%	3025.0%
Cash & Equivalents	$10.00M	$10.00M	$10.00M
Short-Term Investments	$0.00	$240.0M	$240.0M
Other Short-Term Assets	$115.0M	$155.0M	$1.097B
YoY Change	38.55%	59.79%	29.21%
Inventory	$630.0M	$667.0M	$667.0M
Prepaid Expenses
Receivables	$625.0M	$600.0M	$600.0M
Other Receivables	$62.00M	$54.00M	$54.00M
Total Short-Term Assets	$2.062B	$2.668B	$2.668B
YoY Change	1.53%	35.57%	35.57%
LONG-TERM ASSETS
Property, Plant & Equipment	$31.74B	$31.26B	$31.26B
YoY Change	7.29%	6.84%	6.84%
Goodwill	$411.0M	$411.0M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$1.016B	$958.0M	$958.0M
YoY Change	-6.7%	-17.06%	-17.06%
Other Assets	$815.0M	$768.0M	$2.605B
YoY Change	-12.74%	-13.8%	-11.39%
Total Long-Term Assets	$36.00B	$35.24B	$35.24B
YoY Change	5.37%	4.35%	4.35%
TOTAL ASSETS
Total Short-Term Assets	$2.062B	$2.668B	$2.668B
Total Long-Term Assets	$36.00B	$35.24B	$35.24B
Total Assets	$38.06B	$37.90B	$37.90B
YoY Change	5.16%	6.07%	6.07%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$664.0M	$1.159B	$1.159B
YoY Change	-3.77%	5.84%	5.84%
Accrued Expenses
YoY Change
Deferred Revenue		$115.0M
YoY Change
Short-Term Debt	$1.248B	$1.070B	$1.070B
YoY Change	13.35%	96.33%	96.33%
Long-Term Debt Due	$100.0M	$340.0M	$340.0M
YoY Change	-80.2%	-32.67%	-32.67%
Total Short-Term Liabilities	$2.757B	$3.366B	$3.366B
YoY Change	-12.34%	19.11%	19.11%
LONG-TERM LIABILITIES
Long-Term Debt	$14.18B	$13.69B	$13.69B
YoY Change	12.88%	8.94%	8.94%
Other Long-Term Liabilities	$370.0M	$340.0M	$6.412B
YoY Change	-6.09%	-17.87%	-8.65%
Total Long-Term Liabilities	$14.55B	$14.03B	$20.10B
YoY Change	12.3%	8.08%	2.64%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.757B	$3.366B	$3.366B
Total Long-Term Liabilities	$14.55B	$14.03B	$20.10B
Total Liabilities	$17.31B	$17.39B	$27.40B
YoY Change	7.49%	10.06%	5.23%
SHAREHOLDERS EQUITY
Retained Earnings	$3.745B	$3.646B
YoY Change	14.11%	14.58%
Common Stock	$3.000M	$3.000M
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$10.61B	$10.51B	$10.51B
YoY Change
Total Liabilities & Shareholders Equity	$38.06B	$37.90B	$37.90B
YoY Change	5.16%	6.07%	6.07%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$265.0M	$163.0M	$1.079B
YoY Change	4.74%	30.4%	8.44%
Depreciation, Depletion And Amortization	$350.0M	$422.0M	$1.438B
YoY Change	8.02%	33.54%	17.97%
Cash From Operating Activities	$496.0M	$664.0M	$2.263B
YoY Change	27.84%	41.58%	36.24%
INVESTING ACTIVITIES
Capital Expenditures	$931.0M	$921.0M	$3.351B
YoY Change	20.28%	-203.37%	13.44%
Acquisitions
YoY Change
Other Investing Activities	$1.000M	$9.000M	-$23.00M
YoY Change	-106.67%	0.0%	187.5%
Cash From Investing Activities	-$964.0M	-$912.0M	-$3.370B
YoY Change	23.59%	3.4%	-4.48%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$333.0M
YoY Change			8.12%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$489.0M	284.0M	$1.168B
YoY Change	25.06%	-32.86%	-32.13%
NET CHANGE
Cash From Operating Activities	$496.0M	664.0M	$2.263B
Cash From Investing Activities	-$964.0M	-912.0M	-$3.370B
Cash From Financing Activities	$489.0M	284.0M	$1.168B
Net Change In Cash	$21.00M	36.00M	$61.00M
YoY Change	-2200.0%	260.0%	-141.78%
FREE CASH FLOW
Cash From Operating Activities	$496.0M	$664.0M	$2.263B
Capital Expenditures	$931.0M	$921.0M	$3.351B
Free Cash Flow	-$435.0M	-$257.0M	-$1.088B
YoY Change	12.69%	-118.9%	-15.85%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001002910
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	aee	Number Of Weeks Of Coverage After The First Twelve Weeks Of An Outage NumberOfWeeksOfCoverageAfterTheFirstTwelveWeeksOfAnOutage	1
CY2022	aee	Number Of Additional Weeks After Initial Indemnity Coverage For Power Outage NumberOfAdditionalWeeksAfterInitialIndemnityCoverageForPowerOutage	1.365
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	1-14756
CY2022	dei	Entity Registrant Name EntityRegistrantName	Ameren Corporation
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	43-1723446
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MO
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	1901 Chouteau Avenue
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	St. Louis
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	MO
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	63103
CY2022	dei	City Area Code CityAreaCode	(314)
CY2022	dei	Local Phone Number LocalPhoneNumber	621-3222
CY2022	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
CY2022	dei	Trading Symbol TradingSymbol	AEE
CY2022	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	23231496514	usd
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	262028768	shares
CY2022	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2022	dei	Auditor Location AuditorLocation	St. Louis, Missouri
CY2022	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	7957000000	usd
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	6394000000	usd
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	5794000000	usd
CY2022	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	473000000	usd
CY2021	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	581000000	usd
CY2020	us-gaap	Utilities Operating Expense Fuel Used UtilitiesOperatingExpenseFuelUsed	490000000	usd
CY2022	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	1547000000	usd
CY2021	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	606000000	usd
CY2020	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	513000000	usd
CY2022	us-gaap	Utilities Operating Expense Gas And Petroleum Purchased UtilitiesOperatingExpenseGasAndPetroleumPurchased	657000000	usd
CY2021	us-gaap	Utilities Operating Expense Gas And Petroleum Purchased UtilitiesOperatingExpenseGasAndPetroleumPurchased	442000000	usd
CY2020	us-gaap	Utilities Operating Expense Gas And Petroleum Purchased UtilitiesOperatingExpenseGasAndPetroleumPurchased	272000000	usd
CY2022	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	1937000000	usd
CY2021	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	1774000000	usd
CY2020	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	1661000000	usd
CY2022	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	1289000000	usd
CY2021	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	1146000000	usd
CY2020	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	1075000000	usd
CY2022	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	539000000	usd
CY2021	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	512000000	usd
CY2020	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	483000000	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	6442000000	usd
CY2021	us-gaap	Operating Expenses OperatingExpenses	5061000000	usd
CY2020	us-gaap	Operating Expenses OperatingExpenses	4494000000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	1515000000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	1333000000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	1300000000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	226000000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	202000000	usd
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	151000000	usd
CY2022	us-gaap	Interest Expense InterestExpense	486000000	usd
CY2021	us-gaap	Interest Expense InterestExpense	383000000	usd
CY2020	us-gaap	Interest Expense InterestExpense	419000000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1255000000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1152000000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1032000000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	176000000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	157000000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	155000000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	1079000000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	995000000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	877000000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5000000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5000000	usd
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	6000000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1074000000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	990000000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	871000000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	1079000000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	995000000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	877000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-4000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	4000000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	5000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	14000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-14000000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-16000000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1065000000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1009000000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	893000000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5000000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5000000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	6000000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1060000000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1004000000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	887000000	usd
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.16
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.86
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.53
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.14
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.84
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.50
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	258400000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	256300000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	247000000.0	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	259500000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	257600000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	248700000	shares
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	10000000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8000000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	31000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	29000000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	600000000	usd
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	434000000	usd
CY2022Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	446000000	usd
CY2021Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	301000000	usd
CY2022Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	54000000	usd
CY2021Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	85000000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	667000000	usd
CY2021Q4	us-gaap	Inventory Net InventoryNet	592000000	usd
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	354000000	usd
CY2021Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	319000000	usd
CY2022Q4	aee	Investments In Industrial Development Revenue Bonds InvestmentsInIndustrialDevelopmentRevenueBonds	240000000	usd
CY2022Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	142000000	usd
CY2021Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	66000000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	155000000	usd
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	155000000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	2668000000	usd
CY2021Q4	us-gaap	Assets Current AssetsCurrent	1968000000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	31262000000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	29261000000	usd
CY2022Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	958000000	usd
CY2021Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	1159000000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	411000000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	411000000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1426000000	usd
CY2021Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1289000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	411000000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	756000000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	768000000	usd
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	891000000	usd
CY2022Q4	us-gaap	Regulated Entity Other Assets Noncurrent RegulatedEntityOtherAssetsNoncurrent	3974000000	usd
CY2021Q4	us-gaap	Regulated Entity Other Assets Noncurrent RegulatedEntityOtherAssetsNoncurrent	4506000000	usd
CY2022Q4	us-gaap	Assets Assets	37904000000	usd
CY2021Q4	us-gaap	Assets Assets	35735000000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	340000000	usd
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	505000000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1070000000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	545000000	usd
CY2022Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1159000000	usd
CY2021Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1095000000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	797000000	usd
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	681000000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3366000000	usd
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2826000000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	13685000000	usd
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	12562000000	usd
CY2022Q4	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	3804000000	usd
CY2021Q4	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	3499000000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	5309000000	usd
CY2021Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	5848000000	usd
CY2022Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	763000000	usd
CY2021Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	757000000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	340000000	usd
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	414000000	usd
CY2022Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	10216000000	usd
CY2021Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	10518000000	usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1000000	usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000.0	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000.0	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	262000000.0	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	257700000	shares
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	3000000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	3000000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	6860000000	usd
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	6502000000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3646000000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3182000000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	13000000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	10508000000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	9700000000	usd
CY2022Q4	us-gaap	Minority Interest MinorityInterest	129000000	usd
CY2021Q4	us-gaap	Minority Interest MinorityInterest	129000000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10637000000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9829000000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	37904000000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	35735000000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	1079000000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	995000000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	877000000	usd
CY2022	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1438000000	usd
CY2021	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1277000000	usd
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1153000000	usd
CY2022	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	21000000	usd
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	23000000	usd
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	22000000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	170000000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	156000000	usd
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	148000000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	43000000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	43000000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	32000000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	24000000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	22000000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	21000000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-68000000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-19000000	usd
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-22000000	usd
CY2022	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	317000000	usd
CY2021	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	74000000	usd
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	47000000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	77000000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	71000000	usd
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	25000000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	136000000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	28000000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	40000000	usd
CY2022	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-13000000	usd
CY2021	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	1000000	usd
CY2020	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	34000000	usd
CY2022	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	72000000	usd
CY2021	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	439000000	usd
CY2020	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	254000000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	74000000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	71000000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	74000000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	52000000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-75000000	usd
CY2022	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	229000000	usd
CY2021	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	452000000	usd
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	55000000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-110000000	usd
CY2022	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-65000000	usd
CY2021	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-33000000	usd
CY2020	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-38000000	usd
CY2022	us-gaap	Increase Decrease In Commodity Contract Assets And Liabilities IncreaseDecreaseInCommodityContractAssetsAndLiabilities	64000000	usd
CY2021	us-gaap	Increase Decrease In Commodity Contract Assets And Liabilities IncreaseDecreaseInCommodityContractAssetsAndLiabilities	54000000	usd
CY2020	us-gaap	Increase Decrease In Commodity Contract Assets And Liabilities IncreaseDecreaseInCommodityContractAssetsAndLiabilities	10000000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2263000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1661000000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1727000000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3351000000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3479000000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3233000000	usd
CY2022	us-gaap	Payments For Nuclear Fuel PaymentsForNuclearFuel	29000000	usd
CY2021	us-gaap	Payments For Nuclear Fuel PaymentsForNuclearFuel	44000000	usd
CY2020	us-gaap	Payments For Nuclear Fuel PaymentsForNuclearFuel	66000000	usd
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	522000000	usd
CY2020	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	224000000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	216000000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	439000000	usd
CY2020	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	183000000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-23000000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-8000000	usd
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-11000000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3370000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3528000000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3329000000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	610000000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	565000000	usd
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	494000000	usd
CY2022	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	5000000	usd
CY2021	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	5000000	usd
CY2020	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	6000000	usd
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	50000000	usd
CY2022	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	505000000	usd
CY2021	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	8000000	usd
CY2020	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	442000000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1467000000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1997000000	usd
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2183000000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	333000000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	308000000	usd
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	476000000	usd
CY2022	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	0	usd
CY2021	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	13000000	usd
CY2020	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	0	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	16000000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	17000000	usd
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	20000000	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	18000000	usd
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	18000000	usd
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	20000000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-13000000	usd
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1168000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1721000000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1727000000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	61000000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-146000000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	125000000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	155000000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	301000000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	176000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	216000000	usd
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	246200000	shares
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	155000000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	301000000	usd
CY2022	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	26000000	usd
CY2021	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	17000000	usd
CY2020	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	16000000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	476000000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	426000000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	383000000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-8000000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1000000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	13000000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10637000000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9829000000	usd
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9080000000	usd
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	257700000	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	253300000	shares
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.20
CY2022	aee	Common Stock Shares Issued Through Forward Sale Agreement CommonStockSharesIssuedThroughForwardSaleAgreement	0	shares
CY2021	aee	Common Stock Shares Issued Through Forward Sale Agreement CommonStockSharesIssuedThroughForwardSaleAgreement	1600000	shares
CY2020	aee	Common Stock Shares Issued Through Forward Sale Agreement CommonStockSharesIssuedThroughForwardSaleAgreement	5900000	shares
CY2022	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	3400000	shares
CY2021	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	1800000	shares
CY2020	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
CY2022	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	500000	shares
CY2021	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	500000	shares
CY2020	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	700000	shares
CY2022	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	400000	shares
CY2021	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	500000	shares
CY2020	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	500000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	262000000.0	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	257700000	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	253300000	shares
CY2022	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.36
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.00
CY2022	us-gaap	Nature Of Operations NatureOfOperations	<div style="margin-top:10pt"><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:700;line-height:120%">General</span></div><div style="margin-top:10pt;text-indent:18pt"><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Ameren, headquartered in St. Louis, Missouri, is a public utility holding company whose primary assets are its equity interests in its subsidiaries.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Ameren’s subsidiaries are separate, independent legal entities with separate businesses, assets, and liabilities. Dividends on Ameren’s common stock and the payment of expenses by Ameren depend on distributions made to it by its subsidiaries. Ameren’s principal subsidiaries are listed below. Ameren also has other subsidiaries that conduct other activities, such as providing shared services.</span></div><div style="margin-top:10pt;padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:15.13pt">Union Electric Company, doing business as Ameren Missouri, operates a rate-regulated electric generation, transmission, and distribution business and a rate-regulated natural gas distribution business in Missouri. Ameren Missouri was incorporated in Missouri in 1922 and is successor to a number of companies, the oldest of which was organized in 1881. It is the largest electric utility in the state of Missouri. It supplies electric and natural gas service to a 24,000-square-mile area in central and eastern Missouri, which includes the Greater St. Louis area. Ameren Missouri supplies electric service to 1.2 million customers and natural gas service to 0.1 million customers.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:15.13pt">Ameren Illinois Company, doing business as Ameren Illinois, operates rate-regulated electric transmission, electric distribution, and natural gas distribution businesses in Illinois. Ameren Illinois was incorporated in Illinois in 1923 and is the successor to a number of companies, the oldest of which was organized in 1902. Ameren Illinois supplies electric and natural gas utility service to a 43,700 square mile area in central and southern Illinois. Ameren Illinois supplies electric service to 1.2 million customers and natural gas service to 0.8 million customers.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:15.13pt">ATXI operates a FERC rate-regulated electric transmission business in the MISO. ATXI was incorporated in Illinois in 2006. ATXI operates, among other assets, the Spoon River, Mark Twain, and Illinois Rivers transmission lines, which were placed in service in February 2018, December 2019, and December 2020, respectively.</span></div>
CY2021Q4	us-gaap	Goodwill Goodwill	411000000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	411000000	usd
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
CY2022Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	usd
CY2022Q4	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	68000000	usd
CY2021Q4	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	56000000	usd
CY2022Q4	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	68000000	usd
CY2022Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	246000000	usd
CY2021Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	278000000	usd
CY2022	aee	Miso Resettlements MISOResettlements	0	usd
CY2022Q3	aee	Minimum Tax On Book Income Inflation Reduction Act Percent MinimumTaxOnBookIncomeInflationReductionActPercent	0.15
CY2022	aee	Roe Change ROEChange	0.0050
CY2022Q4	us-gaap	Regulatory Assets RegulatoryAssets	1780000000	usd
CY2021Q4	us-gaap	Regulatory Assets RegulatoryAssets	1608000000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	41602000000	usd
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	354000000	usd
CY2021Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	319000000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1426000000	usd
CY2021Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1289000000	usd
CY2022Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	5445000000	usd
CY2021Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	5961000000	usd
CY2022Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	136000000	usd
CY2021Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	113000000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	5309000000	usd
CY2021Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	5848000000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	43839000000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	14465000000	usd
CY2022Q4	aee	Property Plant And Equipment Net Before Construction Work In Progress PropertyPlantAndEquipmentNetBeforeConstructionWorkInProgress	29374000000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	31262000000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	14214000000	usd
CY2021Q4	aee	Property Plant And Equipment Net Before Construction Work In Progress PropertyPlantAndEquipmentNetBeforeConstructionWorkInProgress	27388000000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	29261000000	usd
CY2022Q4	aee	Numberof Combustion Turbine Electric Generation Equipmentwith Related Financing Obligations NumberofCombustionTurbineElectricGenerationEquipmentwithRelatedFinancingObligations	2	equipment
CY2022Q4	aee	Gross Asset Value Financing Obligation GrossAssetValueFinancingObligation	125000000	usd
CY2021Q4	aee	Gross Asset Value Financing Obligation GrossAssetValueFinancingObligation	243000000	usd
CY2022Q4	aee	Accumulateddepreciationfinancingobligations Accumulateddepreciationfinancingobligations	54000000	usd
CY2021Q4	aee	Accumulateddepreciationfinancingobligations Accumulateddepreciationfinancingobligations	105000000	usd
CY2022	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	852000000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1070000000	usd
CY2022Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0228
CY2022	us-gaap	Shortterm Debt Maximum Amount Outstanding During Period ShorttermDebtMaximumAmountOutstandingDuringPeriod	1267000000	usd
CY2022	aee	Peak Short Term Borrowings Interest Rate PeakShortTermBorrowingsInterestRate	0.0495
CY2021	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	604000000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	545000000	usd
CY2021Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0022
CY2021	us-gaap	Shortterm Debt Maximum Amount Outstanding During Period ShorttermDebtMaximumAmountOutstandingDuringPeriod	1134000000	usd
CY2021	aee	Peak Short Term Borrowings Interest Rate PeakShortTermBorrowingsInterestRate	0.0038
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	13685000000	usd
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	12562000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	340000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	849000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	300000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	350000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	950000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	11358000000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	14147000000	usd
CY2022Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	105.50
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	500000	shares
CY2021	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	500000	shares
CY2020	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	700000	shares
CY2022Q4	aee	Accrued Proceeds From Issuance Of Common Stock AccruedProceedsFromIssuanceOfCommonStock	8000000	usd
CY2022	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	400000	shares
CY2021	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	500000	shares
CY2020	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	500000	shares
CY2021	us-gaap	Stock Issued1 StockIssued1	33000000	usd
CY2022Q4	aee	Common Stock Shares Authorized Under Dr Plus Plan CommonStockSharesAuthorizedUnderDRPlusPlan	4000000	shares
CY2022Q4	aee	Common Stock Shares Authorized Under401k Plan CommonStockSharesAuthorizedUnder401kPlan	4000000	shares
CY2021Q2	aee	Maximum Value Of Shares To Be Issued Under Atm Program MaximumValueOfSharesToBeIssuedUnderATMProgram	750000000	usd
CY2022Q4	aee	Increased Maximum Value Of Shares To Be Issued Under Atm Program IncreasedMaximumValueOfSharesToBeIssuedUnderATMProgram	1000000000	usd
CY2022	aee	Quantity Of Shares Issued Under Atm Program QuantityOfSharesIssuedUnderATMProgram	3400000	shares
CY2021	aee	Quantity Of Shares Issued Under Atm Program QuantityOfSharesIssuedUnderATMProgram	1800000	shares
CY2022	aee	Value Of Shares Issued Under Atm Program ValueOfSharesIssuedUnderATMProgram	292000000	usd
CY2021	aee	Value Of Shares Issued Under Atm Program ValueOfSharesIssuedUnderATMProgram	148000000	usd
CY2022	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	3000000	usd
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	2000000	usd
CY2022Q4	aee	Maximum Value Of Shares To Be Issued Under Atm Program MaximumValueOfSharesToBeIssuedUnderATMProgram	1000000000	usd
CY2022Q4	aee	Forward Contract Indexed To Issuers Equity Basis Spread ForwardContractIndexedToIssuersEquityBasisSpread	0.0075
CY2019Q3	us-gaap	Forward Contract Indexed To Issuers Equity Indexed Shares ForwardContractIndexedToIssuersEquityIndexedShares	7500000	shares
CY2020	aee	Common Stock Shares Issued Through Forward Sale Agreement CommonStockSharesIssuedThroughForwardSaleAgreement	5900000	shares
CY2020Q4	aee	Common Stock Value Issued Through Forward Sale Agreement CommonStockValueIssuedThroughForwardSaleAgreement	425000000	usd
CY2021	aee	Common Stock Shares Issued Through Forward Sale Agreement CommonStockSharesIssuedThroughForwardSaleAgreement	1600000	shares
CY2021Q1	aee	Common Stock Value Issued Through Forward Sale Agreement CommonStockValueIssuedThroughForwardSaleAgreement	113000000	usd
CY2022	aee	Debt Default Provision Excess DebtDefaultProvisionExcess	25000000	usd
CY2022	aee	Debt Default Provision Excess DebtDefaultProvisionExcess	25000000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	43000000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	43000000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	32000000	usd
CY2022	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	24000000	usd
CY2021	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	25000000	usd
CY2020	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	25000000	usd
CY2022	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	11000000	usd
CY2021	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	2000000	usd
CY2020	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	4000000	usd
CY2022	aee	Defined Benefit Plan Nonservice Costor Income Components DefinedBenefitPlanNonserviceCostorIncomeComponents	184000000	usd
CY2021	aee	Defined Benefit Plan Nonservice Costor Income Components DefinedBenefitPlanNonserviceCostorIncomeComponents	136000000	usd
CY2020	aee	Defined Benefit Plan Nonservice Costor Income Components DefinedBenefitPlanNonserviceCostorIncomeComponents	116000000	usd
CY2022	us-gaap	Other Income OtherIncome	10000000	usd
CY2021	us-gaap	Other Income OtherIncome	10000000	usd
CY2020	us-gaap	Other Income OtherIncome	10000000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2000000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	12000000	usd
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	3000000	usd
CY2022	aee	Donations Donations	26000000	usd
CY2021	aee	Donations Donations	9000000	usd
CY2020	aee	Donations Donations	25000000	usd
CY2022	us-gaap	Other Noninterest Expense OtherNoninterestExpense	22000000	usd
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	17000000	usd
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	14000000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	226000000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	202000000	usd
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	151000000	usd
CY2022Q4	us-gaap	Credit Derivative Maximum Exposure Undiscounted CreditDerivativeMaximumExposureUndiscounted	74000000	usd
CY2022Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	947000000	usd
CY2021Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	1152000000	usd
CY2022Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	947000000	usd
CY2021Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	1152000000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1036000000	usd
CY2021Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1242000000	usd
CY2022Q4	aee	Receivables Payables And Accrued Income Net ReceivablesPayablesAndAccruedIncomeNet	11000000	usd
CY2021Q4	aee	Receivables Payables And Accrued Income Net ReceivablesPayablesAndAccruedIncomeNet	7000000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	154000000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	146000000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	92000000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	80000000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	128000000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	103000000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	374000000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	329000000	usd
CY2022	aee	Number Of Years The Limit Of Liability And The Maximum Potential Annual Payments Are Adjusted NumberOfYearsTheLimitOfLiabilityAndTheMaximumPotentialAnnualPaymentsAreAdjusted	five years
CY2022Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	377000000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	717000000	usd
CY2022Q4	aee	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Changein Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationChangeinDiscountRate	0.0255
CY2022Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	377000000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	717000000	usd
CY2022	aee	Defined Benefit Plan Number Of High Quality Bonds Used To Determine Yield Curve DefinedBenefitPlanNumberOfHighQualityBondsUsedToDetermineYieldCurve	850	bond
CY2022Q4	aee	Defined Benefit Plan Estimated Future Employer Contributions Over Next Five Years DefinedBenefitPlanEstimatedFutureEmployerContributionsOverNextFiveYears	170000000	usd
CY2022Q4	aee	Collateralized Loan Percentage Compared To Assets Market Value CollateralizedLoanPercentageComparedToAssetsMarketValue	1.03
CY2022Q4	us-gaap	Securities Loaned SecuritiesLoaned	239000000	usd
CY2021Q4	us-gaap	Securities Loaned SecuritiesLoaned	374000000	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	43000000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	38000000	usd
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	38000000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	8800000	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	8600000	shares
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	24000000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	22000000	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	21000000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	6000000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	6000000	usd
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	6000000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	18000000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	16000000	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	15000000	usd
CY2022	aee	Settledperformanceshareunitsandrestrictedstockunits Settledperformanceshareunitsandrestrictedstockunits	47000000	usd
CY2021	aee	Settledperformanceshareunitsandrestrictedstockunits Settledperformanceshareunitsandrestrictedstockunits	50000000	usd
CY2020	aee	Settledperformanceshareunitsandrestrictedstockunits Settledperformanceshareunitsandrestrictedstockunits	58000000	usd
CY2022Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	38000000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P21M
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2022	aee	Effective Income Tax Rate Reconciliation Nondeductible Expense Amortizationof Excess Deferred Taxes Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationofExcessDeferredTaxesPercent	-0.08
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.04
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.05
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.14
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2021	aee	Effective Income Tax Rate Reconciliation Nondeductible Expense Amortizationof Excess Deferred Taxes Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationofExcessDeferredTaxesPercent	-0.08
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.03
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.05
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.01
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.14
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	aee	Effective Income Tax Rate Reconciliation Nondeductible Expense Amortizationof Excess Deferred Taxes Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortizationofExcessDeferredTaxesPercent	-0.09
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.01
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.05
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.01
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.15
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	5000000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1000000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	194000000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	80000000	usd
CY2022	aee	Amortization Of Excess Deferred Taxes AmortizationOfExcessDeferredTaxes	100000000	usd
CY2022	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	-4000000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	176000000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7000000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-6000000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	170000000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	86000000	usd
CY2021	aee	Amortization Of Excess Deferred Taxes AmortizationOfExcessDeferredTaxes	96000000	usd
CY2021	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	-4000000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	157000000	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	2000000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5000000	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	187000000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	57000000	usd
CY2020	aee	Amortization Of Excess Deferred Taxes AmortizationOfExcessDeferredTaxes	91000000	usd
CY2020	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	-5000000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	155000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4416000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	449000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	70000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	228000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	110000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3779000000	usd
CY2022Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	25000000	usd
CY2022Q4	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	3804000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4129000000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	483000000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	88000000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	198000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	109000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3469000000	usd
CY2021Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	30000000	usd
CY2021Q4	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	3499000000	usd
CY2022Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	47000000	usd
CY2022Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	181000000	usd
CY2021Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	65000000	usd
CY2021Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	133000000	usd
CY2022	aee	Related Party Transaction Interconnection Agreement Optional Termination Period RelatedPartyTransactionInterconnectionAgreementOptionalTerminationPeriod	P3Y
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	10000000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8000000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	13000000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	16000000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	185000000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	127000000	usd
CY2022Q4	aee	Restricted Cashand Cash Equivalents Nuclear Decommissioning Trust Fund RestrictedCashandCashEquivalentsNuclearDecommissioningTrustFund	8000000	usd
CY2021Q4	aee	Restricted Cashand Cash Equivalents Nuclear Decommissioning Trust Fund RestrictedCashandCashEquivalentsNuclearDecommissioningTrustFund	4000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	216000000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	155000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	29000000	usd
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	50000000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	38000000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	9000000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	36000000	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	30000000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	31000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	29000000	usd
CY2022Q4	aee	Percentage Of Accounts Receivable Balances That Are30 Days Past Due Or Are Part Of A Deferred Payment Arrangement PercentageOfAccountsReceivableBalancesThatAre30DaysPastDueOrArePartOfADeferredPaymentArrangement	0.17
CY2022Q4	aee	Accounts Receivable Balances That Are30 Days Or More Past Due Or Part Of A Deferred Payment Arrangement AccountsReceivableBalancesThatAre30DaysOrMorePastDueOrPartOfADeferredPaymentArrangement	107000000	usd
CY2021Q4	aee	Percentage Of Accounts Receivable Balances That Are30 Days Past Due Or Are Part Of A Deferred Payment Arrangement PercentageOfAccountsReceivableBalancesThatAre30DaysPastDueOrArePartOfADeferredPaymentArrangement	0.20
CY2021Q4	aee	Accounts Receivable Balances That Are30 Days Or More Past Due Or Part Of A Deferred Payment Arrangement AccountsReceivableBalancesThatAre30DaysOrMorePastDueOrPartOfADeferredPaymentArrangement	94000000	usd
CY2022Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	79000000	usd
CY2021Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	118000000	usd
CY2022Q4	us-gaap	Energy Related Inventory Gas Stored Underground EnergyRelatedInventoryGasStoredUnderground	130000000	usd
CY2021Q4	us-gaap	Energy Related Inventory Gas Stored Underground EnergyRelatedInventoryGasStoredUnderground	99000000	usd
CY2022Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	458000000	usd
CY2021Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	375000000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	667000000	usd
CY2021Q4	us-gaap	Inventory Net InventoryNet	592000000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	764000000	usd
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	756000000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	1000000	usd
CY2021	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	18000000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	4000000	usd
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	37000000	usd
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	32000000	usd
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	31000000	usd
CY2022	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-7000000	usd
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-4000000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	786000000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	764000000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	23000000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	7000000	usd
CY2022Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	87000000	usd
CY2021Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	91000000	usd
CY2022	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	295000000	usd
CY2021	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	275000000	usd
CY2020	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	254000000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	43000000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	43000000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	32000000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	26000000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	17000000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	16000000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	69000000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	60000000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	48000000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	258400000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	256300000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	247000000.0	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1000000.0	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1300000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1200000	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	100000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	0	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	500000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	259500000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	257600000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	248700000	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2021	us-gaap	Payments To Acquire Projects PaymentsToAcquireProjects	525000000	usd
CY2020	us-gaap	Payments To Acquire Projects PaymentsToAcquireProjects	564000000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	441000000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	524000000	usd
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	446000000	usd
CY2022	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-218000000	usd
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	163000000	usd
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	116000000	usd
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
CY2022	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	7957000000	usd
CY2022	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	1289000000	usd
CY2022	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	35000000	usd
CY2022	us-gaap	Interest Expense InterestExpense	486000000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	176000000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1074000000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	3351000000	usd
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	6394000000	usd
CY2021	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	1146000000	usd
CY2021	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	27000000	usd
CY2021	us-gaap	Interest Expense InterestExpense	383000000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	157000000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	990000000	usd
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	3479000000	usd
CY2020	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	1075000000	usd
CY2020	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	29000000	usd
CY2020	us-gaap	Interest Expense InterestExpense	419000000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	155000000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	871000000	usd
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	3233000000	usd
CY2021	us-gaap	Payments To Acquire Projects PaymentsToAcquireProjects	525000000	usd
CY2020	us-gaap	Payments To Acquire Projects PaymentsToAcquireProjects	564000000	usd
CY2022	us-gaap	Revenues Revenues	7957000000	usd
CY2021	us-gaap	Revenues Revenues	6394000000	usd
CY2020	us-gaap	Revenues Revenues	5794000000	usd
CY2022	aee	Revenues From Alternative Revenue Programs RevenuesFromAlternativeRevenuePrograms	78000000	usd
CY2022	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	-94000000	usd
CY2021	aee	Revenues From Alternative Revenue Programs RevenuesFromAlternativeRevenuePrograms	77000000	usd
CY2021	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	68000000	usd
CY2020	aee	Revenues From Alternative Revenue Programs RevenuesFromAlternativeRevenuePrograms	36000000	usd
CY2020	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	36000000	usd
CY2022	dei	Auditor Firm AuditorFirmId	238

Files In Submission

Name	View Source	Status
FilingSummary.xml	Edgar Link	unprocessable
0001002910-23-000053-index-headers.html	Edgar Link	pending
0001002910-23-000053-index.html	Edgar Link	pending
0001002910-23-000053.txt	Edgar Link	pending
0001002910-23-000053-xbrl.zip	Edgar Link	pending
aee-20221231.htm	Edgar Link	pending
aee-20221231.xsd	Edgar Link	pending
aee-20221231_g1.jpg	Edgar Link	pending
aee-20221231_g10.jpg	Edgar Link	pending
aee-20221231_g11.jpg	Edgar Link	pending
aee-20221231_g12.jpg	Edgar Link	pending
aee-20221231_g13.jpg	Edgar Link	pending
aee-20221231_g14.jpg	Edgar Link	pending
aee-20221231_g15.jpg	Edgar Link	pending
aee-20221231_cal.xml	Edgar Link	unprocessable
aee-20221231_def.xml	Edgar Link	unprocessable
aee-20221231_g16.jpg	Edgar Link	pending
aee-20221231_g17.jpg	Edgar Link	pending
aee-20221231_g18.jpg	Edgar Link	pending
aee-20221231_g19.jpg	Edgar Link	pending
aee-20221231_g2.jpg	Edgar Link	pending
aee-20221231_g20.jpg	Edgar Link	pending
aee-20221231_g21.jpg	Edgar Link	pending
aee-20221231_g22.jpg	Edgar Link	pending
aee-20221231_g23.jpg	Edgar Link	pending
aee-20221231_g24.jpg	Edgar Link	pending
aee-20221231_g25.jpg	Edgar Link	pending
aee-20221231_g3.jpg	Edgar Link	pending
aee-20221231_g4.jpg	Edgar Link	pending
aee-20221231_g5.jpg	Edgar Link	pending
aee-20221231_g6.gif	Edgar Link	pending
aee-20221231_g7.gif	Edgar Link	pending
aee-20221231_g8.jpg	Edgar Link	pending
aee-20221231_g9.jpg	Edgar Link	pending
aee202210-kxexhibit1010.htm	Edgar Link	pending
aee202210-kxexhibit1011.htm	Edgar Link	pending
aee202210-kxexhibit1012.htm	Edgar Link	pending
aee202210-kxexhibit1017.htm	Edgar Link	pending
aee202210-kxexhibit1021.htm	Edgar Link	pending
aee202210-kxexhibit1024.htm	Edgar Link	pending
aee202210-kxexhibit1031.htm	Edgar Link	pending
aee202210-kxexhibit1045.htm	Edgar Link	pending
aee202210-kxexhibit1046.htm	Edgar Link	pending
aee202210-kxexhibit1047.htm	Edgar Link	pending
aee202210-kxexhibit211.htm	Edgar Link	pending
aee202210-kxexhibit231.htm	Edgar Link	pending
aee202210-kxexhibit232.htm	Edgar Link	pending
aee202210-kxexhibit233.htm	Edgar Link	pending
aee202210-kxexhibit241.htm	Edgar Link	pending
aee202210-kxexhibit242.htm	Edgar Link	pending
aee202210-kxexhibit243.htm	Edgar Link	pending
aee202210-kxexhibit311.htm	Edgar Link	pending
aee202210-kxexhibit312.htm	Edgar Link	pending
aee202210-kxexhibit313.htm	Edgar Link	pending
aee202210-kxexhibit314.htm	Edgar Link	pending
aee202210-kxexhibit315.htm	Edgar Link	pending
aee202210-kxexhibit316.htm	Edgar Link	pending
aee202210-kxexhibit321.htm	Edgar Link	pending
aee202210-kxexhibit322.htm	Edgar Link	pending
aee202210-kxexhibit323.htm	Edgar Link	pending
aee202210-kxexhibit991.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
aee-20221231_lab.xml	Edgar Link	unprocessable
aee-20221231_pre.xml	Edgar Link	unprocessable
aee-20221231_htm.xml	Edgar Link	completed
image_02.jpg	Edgar Link	pending
image_13a.jpg	Edgar Link	pending
image_1a.jpg	Edgar Link	pending
image_2a.jpg	Edgar Link	pending
image_34a.jpg	Edgar Link	pending
image_36a.jpg	Edgar Link	pending
image_37a.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
pleaserecyclea.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R122.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
shorttermincentivepmnta.jpg	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$AEE
AMEREN CORP Stock $aee

2023 Q1 Form 10-K Financial Statement

#000100291023000053 Filed on February 22, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AEE AMEREN CORP Stock $aee

2023 Q1 Form 10-K Financial Statement

#000100291023000053 Filed on February 22, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AEE
AMEREN CORP Stock $aee