$CEG
Constellation Energy Corp Stock $ceg

$ceg Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000186827523000014 Filed on February 16, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$7.565B	$7.333B	$24.44B
YoY Change	35.31%	32.56%	24.38%
Cost Of Revenue	$5.729B	$5.708B	$17.46B
YoY Change	61.38%	40.59%	43.57%
Gross Profit	$1.836B	$1.625B	$6.978B
YoY Change	-10.04%	10.39%	-6.79%
Gross Profit Margin	24.27%	22.16%	28.55%
Selling, General & Admin	$1.564B	$1.512B	$5.393B
YoY Change	-0.26%	19.71%	15.63%
% of Gross Profit	85.19%	93.05%	77.29%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$262.0M	$617.0M	$1.065B
YoY Change	-2.96%	4.75%	-76.54%
% of Gross Profit	14.27%	37.97%	15.26%
Operating Expenses	$1.831B	$1.785B	$6.484B
YoY Change	-0.92%	16.59%	-15.43%
Operating Profit	$31.00M	-$160.0M	$495.0M
YoY Change	-92.87%	171.19%	-373.48%
Interest Expense	$107.0M	-$64.00M	$250.0M
YoY Change	94.55%	-11.11%	-184.18%
% of Operating Profit	345.16%		50.51%
Other Income/Expense, Net	$207.0M	$383.0M	-$1.037B
YoY Change	-155.35%	63.68%	-230.44%
Pretax Income	$238.0M	$147.0M	-$542.0M
YoY Change	290.16%	-8.13%	-456.58%
Income Tax	$131.0M	$116.0M	-$388.0M
% Of Pretax Income	55.04%	78.91%
Net Earnings	$96.00M	$34.00M	-$160.0M
YoY Change	-9.43%	-19.05%	-21.95%
Net Earnings / Revenue	1.27%	0.46%	-0.65%
Basic Earnings Per Share	$0.29		-$0.49
Diluted Earnings Per Share	$0.29	$0.10	-$0.49
COMMON SHARES
Basic Shares Outstanding	327.1M shares		328.0M shares
Diluted Shares Outstanding	328.0M shares		329.0M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$237.0M	$422.0M	$422.0M
YoY Change	-85.23%	-16.27%	-16.27%
Cash & Equivalents	$237.0M	$422.0M	$422.0M
Short-Term Investments
Other Short-Term Assets	$1.067B	$1.026B	$3.500B
YoY Change	-13.81%	1.89%	7.76%
Inventory	$1.344B	$1.505B	$1.505B
Prepaid Expenses
Receivables	$2.147B	$2.585B	$2.585B
Other Receivables	$542.0M	$731.0M	$1.348B
Total Short-Term Assets	$8.108B	$9.360B	$9.360B
YoY Change	-7.52%	17.28%	17.28%
LONG-TERM ASSETS
Property, Plant & Equipment	$20.07B	$19.82B	$20.37B
YoY Change	1.19%	1.07%	0.75%
Goodwill		$47.00M
YoY Change
Intangibles
YoY Change
Long-Term Investments	$223.0M	$202.0M	$202.0M
YoY Change	2.76%	16.09%	16.09%
Other Assets	$1.977B	$2.106B	$16.98B
YoY Change	-8.13%	22.66%	-13.87%
Total Long-Term Assets	$38.05B	$37.55B	$37.55B
YoY Change	-0.08%	-6.37%	-6.37%
TOTAL ASSETS
Total Short-Term Assets	$8.108B	$9.360B	$9.360B
Total Long-Term Assets	$38.05B	$37.55B	$37.55B
Total Assets	$46.16B	$46.91B	$46.91B
YoY Change	-1.47%	-2.45%	-2.45%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.558B	$2.828B	$2.828B
YoY Change	-15.65%	60.96%	60.96%
Accrued Expenses	$743.0M	$906.0M	$973.0M
YoY Change	-7.47%	22.93%	20.27%
Deferred Revenue
YoY Change
Short-Term Debt	$705.0M	$1.159B	$1.159B
YoY Change	252.5%	-44.33%	-44.33%
Long-Term Debt Due	$161.0M	$143.0M	$143.0M
YoY Change	-15.71%	-88.28%	-88.28%
Total Short-Term Liabilities	$5.947B	$7.839B	$7.839B
YoY Change	-7.57%	-1.96%	-1.96%
LONG-TERM LIABILITIES
Long-Term Debt	$5.763B	$4.466B	$4.466B
YoY Change	26.72%	-2.38%	-8.75%
Other Long-Term Liabilities	$1.258B	$1.178B	$20.20B
YoY Change	-3.23%	3.97%	1.62%
Total Long-Term Liabilities	$7.021B	$5.644B	$24.67B
YoY Change	20.06%	-1.12%	-0.43%
TOTAL LIABILITIES
Total Short-Term Liabilities	$5.947B	$7.839B	$7.839B
Total Long-Term Liabilities	$7.021B	$5.644B	$24.67B
Total Liabilities	$35.07B	$35.54B	$35.89B
YoY Change	-0.76%	-2.56%	-2.65%
SHAREHOLDERS EQUITY
Retained Earnings	-$493.0M	-$496.0M
YoY Change	441.76%
Common Stock	$13.03B	$13.27B
YoY Change	-1.39%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$10.73B	$11.02B	$11.02B
YoY Change
Total Liabilities & Shareholders Equity	$46.16B	$46.91B	$46.91B
YoY Change	-1.47%	-2.45%	-2.45%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$96.00M	$34.00M	-$160.0M
YoY Change	-9.43%	-19.05%	-21.95%
Depreciation, Depletion And Amortization	$262.0M	$617.0M	$1.065B
YoY Change	-2.96%	4.75%	-76.54%
Cash From Operating Activities	-$934.0M	-$2.422B	-$2.353B
YoY Change	-169.13%	4.76%	75.86%
INVESTING ACTIVITIES
Capital Expenditures	$660.0M	$599.0M	$1.689B
YoY Change	60.98%	-346.5%	-227.09%
Acquisitions	$17.00M		$29.00M
YoY Change			-3.33%
Other Investing Activities	$18.00M	$1.832B	$2.000M
YoY Change	350.0%	106.77%	-99.96%
Cash From Investing Activities	$219.0M	$1.233B	$3.104B
YoY Change	-45.79%	91.76%	-5.42%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$30.00M		$1.162B
YoY Change	-97.16%		1006.67%
Cash From Financing Activities	$523.0M	414.0M	-$799.0M
YoY Change	-182.36%	83.19%	-52.86%
NET CHANGE
Cash From Operating Activities	-$934.0M	-2.422B	-$2.353B
Cash From Investing Activities	$219.0M	1.233B	$3.104B
Cash From Financing Activities	$523.0M	414.0M	-$799.0M
Net Change In Cash	-$192.0M	-775.0M	-$48.00M
YoY Change	-117.14%	-46.29%	-119.28%
FREE CASH FLOW
Cash From Operating Activities	-$934.0M	-$2.422B	-$2.353B
Capital Expenditures	$660.0M	$599.0M	$1.689B
Free Cash Flow	-$1.594B	-$3.021B	-$4.042B
YoY Change	-269.39%	46.01%	44811.11%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001868275
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022Q1	us-gaap	Line Of Credit Facility Expiration Period LineOfCreditFacilityExpirationPeriod	P5Y
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021	us-gaap	Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2022#UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
CY2020	us-gaap	Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2022#UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherAssetsNoncurrent
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherAssetsNoncurrent
CY2022Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilitiesCurrent
CY2021Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilitiesCurrent
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilitiesNoncurrent
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilitiesNoncurrent
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Expected Return Loss Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditExpectedReturnLossStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Gain Loss Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditAmortizationOfGainLossStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Interest Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditInterestCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Interest Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditInterestCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Expected Return Loss Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditExpectedReturnLossStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Prior Service Cost Credit Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditAmortizationOfPriorServiceCostCreditStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Gain Loss Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditAmortizationOfGainLossStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Expected Return Loss Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditExpectedReturnLossStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Gain Loss Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditAmortizationOfGainLossStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Prior Service Cost Credit Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditAmortizationOfPriorServiceCostCreditStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Prior Service Cost Credit Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditAmortizationOfPriorServiceCostCreditStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Interest Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditInterestCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
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	001-41137
CY2022	dei	Entity Registrant Name EntityRegistrantName	CONSTELLATION ENERGY CORPORATION
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	87-1210716
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	1310 Point Street
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Baltimore
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	MD
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	21231-3380
CY2022	dei	City Area Code CityAreaCode	(833)
CY2022	dei	Local Phone Number LocalPhoneNumber	883-0162
CY2022	dei	Security12b Title Security12bTitle	Common Stock, without par value
CY2022	dei	Trading Symbol TradingSymbol	CEG
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
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	18711601222	usd
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	327131082	shares
CY2022	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2022	dei	Auditor Location AuditorLocation	Baltimore, Maryland
CY2022	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	24280000000	usd
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	18461000000	usd
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	16392000000	usd
CY2022	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	160000000	usd
CY2021	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1188000000	usd
CY2020	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1211000000	usd
CY2022	us-gaap	Revenues Revenues	24440000000	usd
CY2021	us-gaap	Revenues Revenues	19649000000	usd
CY2020	us-gaap	Revenues Revenues	17603000000	usd
CY2022	us-gaap	Cost Direct Material CostDirectMaterial	17457000000	usd
CY2021	us-gaap	Cost Direct Material CostDirectMaterial	12157000000	usd
CY2020	us-gaap	Cost Direct Material CostDirectMaterial	9592000000	usd
CY2022	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	5000000	usd
CY2021	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	6000000	usd
CY2020	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	-7000000	usd
CY2022	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	4797000000	usd
CY2021	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	3934000000	usd
CY2020	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	4613000000	usd
CY2022	ceg	Related Party Costs Operating And Maintenance RelatedPartyCostsOperatingAndMaintenance	44000000	usd
CY2021	ceg	Related Party Costs Operating And Maintenance RelatedPartyCostsOperatingAndMaintenance	621000000	usd
CY2020	ceg	Related Party Costs Operating And Maintenance RelatedPartyCostsOperatingAndMaintenance	555000000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	1091000000	usd
CY2021	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	3003000000	usd
CY2020	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	2123000000	usd
CY2022	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	552000000	usd
CY2021	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	475000000	usd
CY2020	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	482000000	usd
CY2022	us-gaap	Costs And Expenses CostsAndExpenses	23946000000	usd
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	20196000000	usd
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	17358000000	usd
CY2022	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	1000000	usd
CY2021	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	201000000	usd
CY2020	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	11000000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	495000000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-346000000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	256000000	usd
CY2022	us-gaap	Interest Expense InterestExpense	250000000	usd
CY2021	us-gaap	Interest Expense InterestExpense	282000000	usd
CY2020	us-gaap	Interest Expense InterestExpense	328000000	usd
CY2022	ceg	Related Party Transaction Interest Expense RelatedPartyTransactionInterestExpense	1000000	usd
CY2021	ceg	Related Party Transaction Interest Expense RelatedPartyTransactionInterestExpense	15000000	usd
CY2020	ceg	Related Party Transaction Interest Expense RelatedPartyTransactionInterestExpense	29000000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-786000000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	795000000	usd
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	937000000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1037000000	usd
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	498000000	usd
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	580000000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-542000000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	152000000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	836000000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-388000000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	225000000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	249000000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-13000000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-10000000	usd
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-8000000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	-167000000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	-83000000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	579000000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-7000000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	122000000	usd
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-10000000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-160000000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-205000000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	589000000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	-167000000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	-83000000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	579000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-6000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	0	usd
CY2020	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-101000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	0	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationNetOfTax	-186000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationNetOfTax	0	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationNetOfTax	0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-1000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-1000000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-2000000	usd
CY2022	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-3000000	usd
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	0	usd
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	4000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	277000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1000000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2000000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	110000000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-84000000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	581000000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-7000000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	122000000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-10000000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	117000000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-206000000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	591000000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	328000000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	0	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	0	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1000000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	329000000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	0	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	0	shares
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.49
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.49
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0
CY2022	us-gaap	Profit Loss ProfitLoss	-167000000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	-83000000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	579000000	usd
CY2022	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	2427000000	usd
CY2021	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	4540000000	usd
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3636000000	usd
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	545000000	usd
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	563000000	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	1000000	usd
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	201000000	usd
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	11000000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-643000000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-205000000	usd
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	78000000	usd
CY2022	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-986000000	usd
CY2021	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	568000000	usd
CY2020	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	270000000	usd
CY2022	ceg	Realized And Unrealized Gain Loss On Investments RealizedAndUnrealizedGainLossOnInvestments	-794000000	usd
CY2021	ceg	Realized And Unrealized Gain Loss On Investments RealizedAndUnrealizedGainLossOnInvestments	586000000	usd
CY2020	ceg	Realized And Unrealized Gain Loss On Investments RealizedAndUnrealizedGainLossOnInvestments	461000000	usd
CY2022	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-13000000	usd
CY2021	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-160000000	usd
CY2020	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	186000000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-249000000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	605000000	usd
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-18000000	usd
CY2022	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	868000000	usd
CY2021	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	616000000	usd
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-1125000000	usd
CY2022	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	20000000	usd
CY2021	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	14000000	usd
CY2020	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	24000000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	228000000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	68000000	usd
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	77000000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1142000000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	346000000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-343000000	usd
CY2022	ceg	Increase Decrease In Option Premiums Collected Received IncreaseDecreaseInOptionPremiumsCollectedReceived	-177000000	usd
CY2021	ceg	Increase Decrease In Option Premiums Collected Received IncreaseDecreaseInOptionPremiumsCollectedReceived	-338000000	usd
CY2020	ceg	Increase Decrease In Option Premiums Collected Received IncreaseDecreaseInOptionPremiumsCollectedReceived	-139000000	usd
CY2022	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	-351000000	usd
CY2021	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	-130000000	usd
CY2020	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	479000000	usd
CY2022	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	162000000	usd
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	256000000	usd
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	186000000	usd
CY2022	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-237000000	usd
CY2021	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-259000000	usd
CY2020	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-255000000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	5474000000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	3540000000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	4362000000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-2353000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-1338000000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	584000000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1689000000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1329000000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1747000000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	4050000000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	6532000000	usd
CY2020	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	3341000000	usd
CY2022	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	4271000000	usd
CY2021	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	6673000000	usd
CY2020	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	3464000000	usd
CY2022	us-gaap	Proceeds From Collection Of Retained Interest In Securitized Receivables ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables	4964000000	usd
CY2021	us-gaap	Proceeds From Collection Of Retained Interest In Securitized Receivables ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables	3902000000	usd
CY2020	us-gaap	Proceeds From Collection Of Retained Interest In Securitized Receivables ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables	3771000000	usd
CY2022	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	52000000	usd
CY2021	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	878000000	usd
CY2020	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	46000000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	2000000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	28000000	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	3104000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	3282000000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	1958000000	usd
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	257000000	usd
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	362000000	usd
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	20000000	usd
CY2022	us-gaap	Proceeds From Short Term Debt Maturing In More Than Three Months ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths	0	usd
CY2021	us-gaap	Proceeds From Short Term Debt Maturing In More Than Three Months ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths	880000000	usd
CY2020	us-gaap	Proceeds From Short Term Debt Maturing In More Than Three Months ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths	500000000	usd
CY2022	us-gaap	Repayments Of Short Term Debt Maturing In More Than Three Months RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths	1180000000	usd
CY2021	us-gaap	Repayments Of Short Term Debt Maturing In More Than Three Months RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths	0	usd
CY2020	us-gaap	Repayments Of Short Term Debt Maturing In More Than Three Months RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths	0	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	14000000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	152000000	usd
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3155000000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1162000000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	105000000	usd
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	4334000000	usd
CY2022	ceg	Retirement Of Long Term Debt Due To Affiliate RetirementOfLongTermDebtDueToAffiliate	258000000	usd
CY2021	ceg	Retirement Of Long Term Debt Due To Affiliate RetirementOfLongTermDebtDueToAffiliate	0	usd
CY2020	ceg	Retirement Of Long Term Debt Due To Affiliate RetirementOfLongTermDebtDueToAffiliate	550000000	usd
CY2022	ceg	Increase Decrease In Money Pool With Affiliate IncreaseDecreaseInMoneyPoolWithAffiliate	0	usd
CY2021	ceg	Increase Decrease In Money Pool With Affiliate IncreaseDecreaseInMoneyPoolWithAffiliate	-285000000	usd
CY2020	ceg	Increase Decrease In Money Pool With Affiliate IncreaseDecreaseInMoneyPoolWithAffiliate	285000000	usd
CY2022	ceg	Payments To Acquire Noncontrolling Interests PaymentsToAcquireNoncontrollingInterests	0	usd
CY2021	ceg	Payments To Acquire Noncontrolling Interests PaymentsToAcquireNoncontrollingInterests	885000000	usd
CY2020	ceg	Payments To Acquire Noncontrolling Interests PaymentsToAcquireNoncontrollingInterests	0	usd
CY2022	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	usd
CY2021	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	1832000000	usd
CY2020	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	1734000000	usd
CY2022	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	1750000000	usd
CY2021	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	64000000	usd
CY2020	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	64000000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	185000000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	0	usd
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	0	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-35000000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-46000000	usd
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-70000000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-799000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1695000000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2664000000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-48000000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	249000000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-122000000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	576000000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	327000000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	449000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	528000000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	576000000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	327000000	usd
CY2022	ceg	Changein Capital Expenditures Incurred But Not Yet Paid ChangeinCapitalExpendituresIncurredButNotYetPaid	-23000000	usd
CY2021	ceg	Changein Capital Expenditures Incurred But Not Yet Paid ChangeinCapitalExpendituresIncurredButNotYetPaid	96000000	usd
CY2020	ceg	Changein Capital Expenditures Incurred But Not Yet Paid ChangeinCapitalExpendituresIncurredButNotYetPaid	-88000000	usd
CY2022	us-gaap	Supplemental Deferred Purchase Price SupplementalDeferredPurchasePrice	5166000000	usd
CY2021	us-gaap	Supplemental Deferred Purchase Price SupplementalDeferredPurchasePrice	3652000000	usd
CY2020	us-gaap	Supplemental Deferred Purchase Price SupplementalDeferredPurchasePrice	4441000000	usd
CY2022	us-gaap	Costs Incurred Asset Retirement Obligation Incurred CostsIncurredAssetRetirementObligationIncurred	343000000	usd
CY2021	us-gaap	Costs Incurred Asset Retirement Obligation Incurred CostsIncurredAssetRetirementObligationIncurred	618000000	usd
CY2020	us-gaap	Costs Incurred Asset Retirement Obligation Incurred CostsIncurredAssetRetirementObligationIncurred	850000000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	422000000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	504000000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	106000000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	72000000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	46000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	55000000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2585000000	usd
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1669000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	5000000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	5000000	usd
CY2022Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	731000000	usd
CY2021Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	592000000	usd
CY2022Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	2368000000	usd
CY2021Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	2169000000	usd
CY2022Q4	us-gaap	Accounts Receivable Related Parties Current AccountsReceivableRelatedPartiesCurrent	0	usd
CY2021Q4	us-gaap	Accounts Receivable Related Parties Current AccountsReceivableRelatedPartiesCurrent	160000000	usd
CY2022Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	429000000	usd
CY2021Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	284000000	usd
CY2022Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	1076000000	usd
CY2021Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	1004000000	usd
CY2022Q4	ceg	Renewable Energy Credits Current RenewableEnergyCreditsCurrent	617000000	usd
CY2021Q4	ceg	Renewable Energy Credits Current RenewableEnergyCreditsCurrent	520000000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1026000000	usd
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1007000000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	9360000000	usd
CY2021Q4	us-gaap	Assets Current AssetsCurrent	7981000000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	15873000000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	19822000000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	19612000000	usd
CY2022Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	14114000000	usd
CY2021Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	15938000000	usd
CY2022Q4	us-gaap	Long Term Investments LongTermInvestments	202000000	usd
CY2021Q4	us-gaap	Long Term Investments LongTermInvestments	174000000	usd
CY2022Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	1261000000	usd
CY2021Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	949000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	0	usd
CY2021Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	1683000000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	44000000	usd
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	32000000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2106000000	usd
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1717000000	usd
CY2022Q4	us-gaap	Deferred Costs And Other Assets DeferredCostsAndOtherAssets	17727000000	usd
CY2021Q4	us-gaap	Deferred Costs And Other Assets DeferredCostsAndOtherAssets	20493000000	usd
CY2022Q4	us-gaap	Assets Assets	46909000000	usd
CY2021Q4	us-gaap	Assets Assets	48086000000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1159000000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	2082000000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	143000000	usd
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1220000000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2828000000	usd
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1757000000	usd
CY2022Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	906000000	usd
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	737000000	usd
CY2022Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	0	usd
CY2021Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	131000000	usd
CY2022Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	1558000000	usd
CY2021Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	981000000	usd
CY2022Q4	us-gaap	Energy Marketing Accounts Payable EnergyMarketingAccountsPayable	901000000	usd
CY2021Q4	us-gaap	Energy Marketing Accounts Payable EnergyMarketingAccountsPayable	777000000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	344000000	usd
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	311000000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	7839000000	usd
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	7996000000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	4466000000	usd
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	4575000000	usd
CY2022Q4	us-gaap	Due To Affiliate Noncurrent DueToAffiliateNoncurrent	0	usd
CY2021Q4	us-gaap	Due To Affiliate Noncurrent DueToAffiliateNoncurrent	319000000	usd
CY2022Q4	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	3031000000	usd
CY2021Q4	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	3703000000	usd
CY2022Q4	ceg	Asset Retirement Obligations Excluding Spent Nuclear Fuel Noncurrent AssetRetirementObligationsExcludingSpentNuclearFuelNoncurrent	12699000000	usd
CY2021Q4	ceg	Asset Retirement Obligations Excluding Spent Nuclear Fuel Noncurrent AssetRetirementObligationsExcludingSpentNuclearFuelNoncurrent	12819000000	usd
CY2022Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	605000000	usd
CY2021Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	0	usd
CY2022Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	609000000	usd
CY2021Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	847000000	usd
CY2022Q4	us-gaap	Spent Nuclear Fuel Obligation Noncurrent SpentNuclearFuelObligationNoncurrent	1230000000	usd
CY2021Q4	us-gaap	Spent Nuclear Fuel Obligation Noncurrent SpentNuclearFuelObligationNoncurrent	1210000000	usd
CY2022Q4	us-gaap	Accounts Payable Related Parties Noncurrent AccountsPayableRelatedPartiesNoncurrent	0	usd
CY2021Q4	us-gaap	Accounts Payable Related Parties Noncurrent AccountsPayableRelatedPartiesNoncurrent	3357000000	usd
CY2022Q4	ceg	Payable To Regulatory Agreement Units Noncurrent PayableToRegulatoryAgreementUnitsNoncurrent	2897000000	usd
CY2021Q4	ceg	Payable To Regulatory Agreement Units Noncurrent PayableToRegulatoryAgreementUnitsNoncurrent	0	usd
CY2022Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	983000000	usd
CY2021Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	513000000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1178000000	usd
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1133000000	usd
CY2022Q4	us-gaap	Deferred Credits And Other Liabilities DeferredCreditsAndOtherLiabilities	23232000000	usd
CY2021Q4	us-gaap	Deferred Credits And Other Liabilities DeferredCreditsAndOtherLiabilities	23582000000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	35537000000	usd
CY2021Q4	us-gaap	Liabilities Liabilities	36472000000	usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Members Capital MembersCapital	0	usd
CY2021Q4	us-gaap	Members Capital MembersCapital	11250000000	usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	327000000	shares
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	13274000000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	0	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-496000000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	0	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1760000000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-31000000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	11018000000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	11219000000	usd
CY2022Q4	us-gaap	Minority Interest MinorityInterest	354000000	usd
CY2021Q4	us-gaap	Minority Interest MinorityInterest	395000000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	11372000000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	11614000000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	46909000000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	48086000000	usd
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15830000000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	579000000	usd
CY2020	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	3000000	usd
CY2020	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-59000000	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-9000000	usd
CY2020	us-gaap	Distribution Made To Limited Liability Company Llc Member Cash Distributions Declared DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared	1734000000	usd
CY2020	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	64000000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2000000	usd
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14676000000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	-83000000	usd
CY2021	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-37000000	usd
CY2021	ceg	Deferred Tax Liability Adjustment Noncontrolling Interest DeferredTaxLiabilityAdjustmentNoncontrollingInterest	288000000	usd
CY2021	us-gaap	Distribution Made To Limited Liability Company Llc Member Cash Distributions Declared DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared	1832000000	usd
CY2021	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	64000000	usd
CY2021	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1000000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	11614000000	usd
CY2022Q1	us-gaap	Profit Loss ProfitLoss	151000000	usd
CY2022	ceg	Adjustments To Additional Paid In Capital Separation From Parent AdjustmentsToAdditionalPaidInCapitalSeparationFromParent	-197000000	usd
CY2022Q1	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-7000000	usd
CY2022	ceg	Adjustments Consummation Of Separation AdjustmentsConsummationOfSeparation	0	usd
	us-gaap	Profit Loss ProfitLoss	-318000000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	71000000	usd
CY2022	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-34000000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.14
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	185000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	277000000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	11372000000	usd
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	5	segment
CY2022Q1	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	1750000000	usd
CY2022Q1	us-gaap	Short Term Borrowings ShortTermBorrowings	200000000	usd
CY2022Q1	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	4500000000	usd
CY2022	ceg	Related Party Transaction Billings From Related Party RelatedPartyTransactionBillingsFromRelatedParty	266000000	usd
CY2022	ceg	Related Party Transaction Billings To Related Party RelatedPartyTransactionBillingsToRelatedParty	43000000	usd
CY2022	us-gaap	Use Of Estimates UseOfEstimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Areas in which significant estimates have been made include, but are not limited to, the accounting for nuclear decommissioning costs and other AROs, pension and OPEB plans, inventory reserves, allowance for credit losses, long-lived asset impairment assessments, derivative instruments, unamortized energy contracts, fixed asset depreciation, environmental costs and other loss contingencies, taxes and unbilled energy revenues. Actual results could differ from those estimates.
CY2021Q3	us-gaap	Public Utilities Approved Return On Equity Percentage PublicUtilitiesApprovedReturnOnEquityPercentage	0.0933
CY2021Q4	us-gaap	Public Utilities Approved Return On Equity Percentage PublicUtilitiesApprovedReturnOnEquityPercentage	0.0919
CY2021Q3	us-gaap	Public Utilities Approved Return On Equity Percentage PublicUtilitiesApprovedReturnOnEquityPercentage	0.0933
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	144000000	usd
CY2021	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	59000000	usd
CY2021	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	52000000	usd
CY2021	us-gaap	Contract With Customer Asset Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination	12000000	usd
CY2021Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	149000000	usd
CY2022	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	81000000	usd
CY2022	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	62000000	usd
CY2022Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	130000000	usd
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	71000000	usd
CY2020	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Modification Of Contract ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract	282000000	usd
CY2020	ceg	Contract With Customer Liability Revenue Recognized Including Opening Balance ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance	266000000	usd
CY2020	us-gaap	Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	-3000000	usd
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	84000000	usd
CY2021	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Modification Of Contract ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract	251000000	usd
CY2021	ceg	Contract With Customer Liability Revenue Recognized Including Opening Balance ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance	263000000	usd
CY2021	us-gaap	Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	3000000	usd
CY2021Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	75000000	usd
CY2022	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Modification Of Contract ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract	339000000	usd
CY2022	ceg	Contract With Customer Liability Revenue Recognized Including Opening Balance ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance	367000000	usd
CY2022Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	47000000	usd
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	221000000	usd
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	78000000	usd
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	35000000	usd
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	15000000	usd
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	136000000	usd
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	485000000	usd
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	5	segment
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	5	segment
CY2022Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	564000000	usd
CY2021Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	373000000	usd
CY2022	us-gaap	Securitization Financial Asset For Which Transfer Is Accounted As Sale Gain Loss On Sale SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale	-69000000	usd
CY2021	us-gaap	Securitization Financial Asset For Which Transfer Is Accounted As Sale Gain Loss On Sale SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale	-36000000	usd
CY2020	us-gaap	Securitization Financial Asset For Which Transfer Is Accounted As Sale Gain Loss On Sale SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale	-30000000	usd
CY2022	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From New Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers	6108000000	usd
CY2021	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From New Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers	6095000000	usd
CY2020	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From New Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers	2816000000	usd
CY2022	us-gaap	Cash Flows Between Transferor And Transferee Beneficial Interest CashFlowsBetweenTransferorAndTransfereeBeneficialInterest	4764000000	usd
CY2021	us-gaap	Cash Flows Between Transferor And Transferee Beneficial Interest CashFlowsBetweenTransferorAndTransfereeBeneficialInterest	3502000000	usd
CY2020	us-gaap	Cash Flows Between Transferor And Transferee Beneficial Interest CashFlowsBetweenTransferorAndTransfereeBeneficialInterest	3771000000	usd
CY2022	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From Collections Reinvested In Revolving Period Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromCollectionsReinvestedInRevolvingPeriodTransfers	10872000000	usd
CY2021	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From Collections Reinvested In Revolving Period Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromCollectionsReinvestedInRevolvingPeriodTransfers	9597000000	usd
CY2020	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From Collections Reinvested In Revolving Period Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromCollectionsReinvestedInRevolvingPeriodTransfers	6587000000	usd
CY2022Q4	us-gaap	Transfer Of Financial Assets Accounted For As Sales Cash Proceeds Received For Assets Derecognized Amount TransferOfFinancialAssetsAccountedForAsSalesCashProceedsReceivedForAssetsDerecognizedAmount	200000000	usd
CY2021Q1	us-gaap	Transfer Of Financial Assets Accounted For As Sales Cash Proceeds Received For Assets Derecognized Amount TransferOfFinancialAssetsAccountedForAsSalesCashProceedsReceivedForAssetsDerecognizedAmount	400000000	usd
CY2022	us-gaap	Accounts Receivable Sale AccountsReceivableSale	423000000	usd
CY2021	us-gaap	Accounts Receivable Sale AccountsReceivableSale	147000000	usd
CY2020	us-gaap	Accounts Receivable Sale AccountsReceivableSale	824000000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	36548000000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	35485000000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	16726000000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	15873000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	19822000000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	19612000000	usd
CY2022Q4	ceg	Nuclear Fuel Fabrication And Installation Stage NuclearFuelFabricationAndInstallationStage	937000000	usd
CY2021Q4	ceg	Nuclear Fuel Fabrication And Installation Stage NuclearFuelFabricationAndInstallationStage	859000000	usd
CY2022	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	25000000	usd
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	15000000	usd
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	22000000	usd
CY2022Q4	ceg	Uncollectible Decommissioning Shortfall UncollectibleDecommissioningShortfall	50000000	usd
CY2022Q4	ceg	Uncollectible Decommissioning Shortfall Percentage UncollectibleDecommissioningShortfallPercentage	0.05
CY2022Q4	ceg	Uncollectible Decommissioning Shortfall UncollectibleDecommissioningShortfall	50000000	usd
CY2022Q4	ceg	Uncollectible Decommissioning Shortfall Percentage UncollectibleDecommissioningShortfallPercentage	0.05
CY2022	ceg	Asset Retirement Obligation Accretion Rate AssetRetirementObligationAccretionRate	0.04
CY2022	ceg	Number Of Years Used In Present Value Measurement NumberOfYearsUsedInPresentValueMeasurement	P30Y
CY2022Q4	ceg	Returnon Nuclear Decommissioning Funds Historical ReturnonNuclearDecommissioningFundsHistorical	0.053
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	109000000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	161000000	usd
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	194000000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	169000000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	168000000	usd
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	234000000	usd
CY2022	us-gaap	Sublease Income SubleaseIncome	49000000	usd
CY2021	us-gaap	Sublease Income SubleaseIncome	44000000	usd
CY2020	us-gaap	Sublease Income SubleaseIncome	44000000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	545000000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	604000000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	67000000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	72000000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	643000000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	705000000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	710000000	usd
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	777000000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y3M18D
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y1M6D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y6M
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.050
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.050
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.049
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	101000000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	99000000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	102000000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	102000000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	100000000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	421000000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	925000000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	215000000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	710000000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	114000000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	162000000	usd
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	204000000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	14000000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2000000	usd
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	3000000	usd
CY2022	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	51000000	usd
CY2021	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	47000000	usd
CY2020	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	47000000	usd
CY2022	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	258000000	usd
CY2021	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	261000000	usd
CY2020	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	282000000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	48000000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	48000000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	48000000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	49000000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	49000000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	133000000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	375000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	2538000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2195000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	343000000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	2515000000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2134000000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	381000000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	61000000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	80000000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	81000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	59000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	56000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	47000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	40000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	27000000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	219000000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	394000000	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	130000000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-655000000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-153000000	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	150000000	usd
CY2022	ceg	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	15000000	usd
CY2021	ceg	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	15000000	usd
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.005
CY2020	ceg	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	25000000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	34000000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	36000000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	40000000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	29000000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-37000000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-46000000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-388000000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	225000000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	249000000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.092
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0
CY2022	ceg	Effective Income Tax Rate Reconciliation Qualified Decommissioning Investment Income Percent EffectiveIncomeTaxRateReconciliationQualifiedDecommissioningInvestmentIncomePercent	0.463
CY2021	ceg	Effective Income Tax Rate Reconciliation Qualified Decommissioning Investment Income Percent EffectiveIncomeTaxRateReconciliationQualifiedDecommissioningInvestmentIncomePercent	1.651
CY2020	ceg	Effective Income Tax Rate Reconciliation Qualified Decommissioning Investment Income Percent EffectiveIncomeTaxRateReconciliationQualifiedDecommissioningInvestmentIncomePercent	0.235
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.022
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.090
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.026
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	-0.077
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.287
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.054
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	-0.003
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	-0.030
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.032
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.103
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.039
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.026
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.716
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	1.480
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.298
CY2022	ceg	Effective Income Tax Rate Reconciliation State And Local Income Taxes Amount State Rate Changes And Tax Positions EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxesAmountStateRateChangesAndTaxPositions	30000000	usd
CY2022	ceg	Effective Income Tax Rate Reconciliation Prior Period Income Taxes Adjustment EffectiveIncomeTaxRateReconciliationPriorPeriodIncomeTaxesAdjustment	32000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	3005000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2812000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	35000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	38000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	43000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3302000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	172000000	usd
CY2022Q4	ceg	Deferred Tax Assets Deferred Pension And Other Postretirement Benefit Obligation DeferredTaxAssetsDeferredPensionAndOtherPostretirementBenefitObligation	287000000	usd
CY2021Q4	ceg	Deferred Tax Liabilities Deferred Pension And Other Postretirement Benefit Obligation DeferredTaxLiabilitiesDeferredPensionAndOtherPostretirementBenefitObligation	274000000	usd
CY2022Q4	ceg	Deferred Tax Liabilities Nuclear Decommissioning Activities DeferredTaxLiabilitiesNuclearDecommissioningActivities	-371000000	usd
CY2021Q4	ceg	Deferred Tax Liabilities Nuclear Decommissioning Activities DeferredTaxLiabilitiesNuclearDecommissioningActivities	-912000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	0	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	15000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	67000000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	53000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	179000000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	778000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	205000000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	252000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	407000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	312000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2633000000	usd
CY2022Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	354000000	usd
CY2021Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	369000000	usd
CY2022Q4	ceg	Deferred Income Tax Liabilities And Accumulated Deferred Investment Tax Credit Net DeferredIncomeTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCreditNet	2987000000	usd
CY2021Q4	ceg	Deferred Income Tax Liabilities And Accumulated Deferred Investment Tax Credit Net DeferredIncomeTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCreditNet	3671000000	usd
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	441000000	usd
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1000000	usd
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	23000000	usd
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	346000000	usd
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	69000000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	50000000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-1000000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1000000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1000000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2000000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	49000000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-5000000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	29000000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	6000000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	55000000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	24000000	usd
CY2020Q1	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	411000000	usd
CY2020Q1	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	73000000	usd
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	67000000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	29000000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	39000000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	39000000	usd
CY2022Q4	ceg	Allocation Of Federal Tax Benefit Under Tax Sharing Agreement AllocationOfFederalTaxBenefitUnderTaxSharingAgreement	64000000	usd
CY2021Q4	ceg	Allocation Of Federal Tax Benefit Under Tax Sharing Agreement AllocationOfFederalTaxBenefitUnderTaxSharingAgreement	64000000	usd
CY2022Q1	ceg	Defined Benefit Plan Benefit Obligation Actuarial Gain Loss And Prior Service Cost Credit DefinedBenefitPlanBenefitObligationActuarialGainLossAndPriorServiceCostCredit	2006000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	7121000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Plan Assets DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets	6660000000	usd
CY2022	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	151000000	usd
CY2021	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	174000000	usd
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	171000000	usd
CY2022	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	345000000	usd
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	280000000	usd
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	341000000	usd
CY2022	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	620000000	usd
CY2021	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	551000000	usd
CY2020	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	536000000	usd
CY2022	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-6000000	usd
CY2021	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-8000000	usd
CY2020	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-48000000	usd
CY2022	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-147000000	usd
CY2021	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-209000000	usd
CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-179000000	usd
CY2022	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	-6000000	usd
CY2021	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	-20000000	usd
CY2020	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	-8000000	usd
CY2022	ceg	Defined Benefit Plan Net Periodic Benefit Cost Credit Non Service Costs DefinedBenefitPlanNetPeriodicBenefitCostCreditNonServiceCosts	-128000000	usd
CY2021	ceg	Defined Benefit Plan Net Periodic Benefit Cost Credit Non Service Costs DefinedBenefitPlanNetPeriodicBenefitCostCreditNonServiceCosts	-50000000	usd
CY2020	ceg	Defined Benefit Plan Net Periodic Benefit Cost Credit Non Service Costs DefinedBenefitPlanNetPeriodicBenefitCostCreditNonServiceCosts	-56000000	usd
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	23000000	usd
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	124000000	usd
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	115000000	usd
CY2022Q4	ceg	Net Liabilities Pending Transactions Excluded NetLiabilitiesPendingTransactionsExcluded	43000000	usd
CY2022Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	41000000	usd
CY2021Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	0	usd
CY2022	ceg	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Separation Related Adjustments FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSeparationRelatedAdjustments	9000000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-55000000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	18000000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	-4000000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	220000000	usd
CY2022Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	188000000	usd
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	90000000	usd
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	53000000	usd
CY2020	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	63000000	usd
CY2022Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	836000000	usd
CY2021Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	897000000	usd
CY2022Q4	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	152000000	usd
CY2022Q4	ceg	Letters Of Credit Held LettersOfCreditHeld	111000000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	4736000000	usd
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	3872000000	usd
CY2022Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	2048000000	usd
CY2021Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	2424000000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	2688000000	usd
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	1448000000	usd
CY2022Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	1636000000	usd
CY2021Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	713000000	usd
CY2022Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	947000000	usd
CY2021Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	755000000	usd
CY2022Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	765000000	usd
CY2021Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	182000000	usd
CY2022Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	115000000	usd
CY2021Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	124000000	usd
CY2022Q4	ceg	Incremental Collateral For Loss Of Investment Grade Credit Rating IncrementalCollateralForLossOfInvestmentGradeCreditRating	3337000000	usd
CY2021Q4	ceg	Incremental Collateral For Loss Of Investment Grade Credit Rating IncrementalCollateralForLossOfInvestmentGradeCreditRating	2113000000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	5802000000	usd
CY2022Q4	us-gaap	Line Of Credit LineOfCredit	0	usd
CY2022Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	2475000000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	3227000000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Capacity Available For Trade Purchases LineOfCreditFacilityCapacityAvailableForTradePurchases	1776000000	usd
CY2021Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	6631000000	usd
CY2021Q4	us-gaap	Line Of Credit LineOfCredit	0	usd
CY2021Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	2375000000	usd
CY2021Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	4256000000	usd
CY2021Q4	us-gaap	Line Of Credit Facility Capacity Available For Trade Purchases LineOfCreditFacilityCapacityAvailableForTradePurchases	3368000000	usd
CY2022Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	4650000000	usd
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	6101000000	usd
CY2022Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	5000000	usd
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	7000000	usd
CY2022Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	36000000	usd
CY2021Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	42000000	usd
CY2022Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	0	usd
CY2021Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	62000000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	143000000	usd
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1220000000	usd
CY2022Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	4466000000	usd
CY2021Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	4894000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	143000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	110000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	986000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	121000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	735000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	2555000000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	4650000000	usd
CY2021Q4	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue	1000000	usd
CY2022Q4	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue	1000000	usd
CY2022Q4	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue	1000000	usd
CY2021Q4	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue	1000000	usd
CY2022Q4	us-gaap	Derivative Asset Notional Amount DerivativeAssetNotionalAmount	494000000	usd
CY2022Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	494000000	usd
CY2021Q4	us-gaap	Derivative Asset Notional Amount DerivativeAssetNotionalAmount	687000000	usd
CY2021Q4	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	687000000	usd
CY2022Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	836000000	usd
CY2021Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	897000000	usd
CY2022Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	46000000	usd
CY2021Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	33000000	usd
CY2022Q4	ceg	Forward Power Basis ForwardPowerBasis	72.43
CY2022Q4	ceg	Forward Gas Basis ForwardGasBasis	4.57
CY2022Q4	us-gaap	Other Commitment OtherCommitment	3453000000	usd
CY2022Q4	us-gaap	Other Commitment Due In Next Twelve Months OtherCommitmentDueInNextTwelveMonths	3442000000	usd
CY2022Q4	us-gaap	Other Commitment Due In Second Year OtherCommitmentDueInSecondYear	11000000	usd
CY2022Q4	us-gaap	Other Commitment Due In Third Year OtherCommitmentDueInThirdYear	0	usd
CY2022Q4	us-gaap	Other Commitment Due In Fourth Year OtherCommitmentDueInFourthYear	0	usd
CY2022Q4	us-gaap	Other Commitment Due In Fifth Year OtherCommitmentDueInFifthYear	0	usd
CY2022Q4	us-gaap	Other Commitment Due After Fifth Year OtherCommitmentDueAfterFifthYear	0	usd
CY2017Q1	ceg	Nuclear Insurance Financial Protection Pool Value NuclearInsuranceFinancialProtectionPoolValue	450000000	usd
CY2017Q1	ceg	Mutual Property Insurance Maximum Recovery Limit For Multiple Losses MutualPropertyInsuranceMaximumRecoveryLimitForMultipleLosses	13200000000	usd
CY2017Q1	ceg	Nuclear Insurance Financial Protection Pool Maximum Annual Assessment Payment NuclearInsuranceFinancialProtectionPoolMaximumAnnualAssessmentPayment	2800000000	usd
CY2022Q4	ceg	Mutual Insurance Total Retrospective Premium Obligation MutualInsuranceTotalRetrospectivePremiumObligation	252000000	usd
CY2022Q4	ceg	Mutual Replacement Power Cost Insurance Maximum Retrospective Premium Obligation MutualReplacementPowerCostInsuranceMaximumRetrospectivePremiumObligation	3200000000	usd
CY2022	ceg	Spent Nuclear Fuel Storage Reimbursement SpentNuclearFuelStorageReimbursement	1731000000	usd
CY2022	ceg	Spent Nuclear Fuel Storage Reimbursement Net Co Owners SpentNuclearFuelStorageReimbursementNetCoOwners	1501000000	usd
CY2022Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	125000000	usd
CY2021Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	241000000	usd
CY2022Q4	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	130000000	usd
CY2021Q4	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	85000000	usd
CY2022Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	12000000	usd
CY2021Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	35000000	usd
CY2022Q4	us-gaap	Spent Nuclear Fuel Obligation Noncurrent SpentNuclearFuelObligationNoncurrent	1230000000	usd
CY2021Q4	us-gaap	Spent Nuclear Fuel Obligation Noncurrent SpentNuclearFuelObligationNoncurrent	1210000000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	119000000	usd
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	120000000	usd
CY2022Q4	us-gaap	Liability For Asbestos And Environmental Claims Gross LiabilityForAsbestosAndEnvironmentalClaimsGross	95000000	usd
CY2021Q4	us-gaap	Liability For Asbestos And Environmental Claims Gross LiabilityForAsbestosAndEnvironmentalClaimsGross	81000000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	116000000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	47000000	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	27000000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	29000000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	12000000	usd
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	7000000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	87000000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	35000000	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	20000000	usd
CY2022	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	130000000	usd
CY2021	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	99000000	usd
CY2020	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	99000000	usd
CY2022	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	274000000	usd
CY2021	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	268000000	usd
CY2020	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	265000000	usd
CY2022	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	130000000	usd
CY2021	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	109000000	usd
CY2020	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	113000000	usd
CY2022	ceg	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting	333000000	usd
CY2021	ceg	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting	817000000	usd
CY2020	ceg	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting	185000000	usd
CY2022	ceg	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting	97000000	usd
CY2021	ceg	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting	449000000	usd
CY2020	ceg	Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting	160000000	usd
CY2022	ceg	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Regulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsRegulatoryAccounting	-1354000000	usd
CY2021	ceg	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Regulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsRegulatoryAccounting	351000000	usd
CY2020	ceg	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Regulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsRegulatoryAccounting	724000000	usd
CY2022	ceg	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Nonregulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsNonregulatoryAccounting	-798000000	usd
CY2021	ceg	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Nonregulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsNonregulatoryAccounting	209000000	usd
CY2020	ceg	Unrealized Gain Loss Nuclear Decommissioning Trust Funds Nonregulatory Accounting UnrealizedGainLossNuclearDecommissioningTrustFundsNonregulatoryAccounting	391000000	usd
CY2022	ceg	Regulatory Offset Nuclear Decommissioning Trust Fund Activity RegulatoryOffsetNuclearDecommissioningTrustFundActivity	-820000000	usd
CY2021	ceg	Regulatory Offset Nuclear Decommissioning Trust Fund Activity RegulatoryOffsetNuclearDecommissioningTrustFundActivity	917000000	usd
CY2020	ceg	Regulatory Offset Nuclear Decommissioning Trust Fund Activity RegulatoryOffsetNuclearDecommissioningTrustFundActivity	729000000	usd
CY2022	ceg	Decommissioning Related Activities DecommissioningRelatedActivities	-902000000	usd
CY2021	ceg	Decommissioning Related Activities DecommissioningRelatedActivities	909000000	usd
CY2020	ceg	Decommissioning Related Activities DecommissioningRelatedActivities	731000000	usd
CY2022	ceg	Decommissioning Related Activities Investment Income DecommissioningRelatedActivitiesInvestmentIncome	58000000	usd
CY2021	ceg	Decommissioning Related Activities Investment Income DecommissioningRelatedActivitiesInvestmentIncome	0	usd
CY2020	ceg	Decommissioning Related Activities Investment Income DecommissioningRelatedActivitiesInvestmentIncome	0	usd
CY2022	ceg	Defined Benefit Plan Net Periodic Benefit Cost Credit Non Service Costs Excluding Capitalization And Reclassification DefinedBenefitPlanNetPeriodicBenefitCostCreditNonServiceCostsExcludingCapitalizationAndReclassification	110000000	usd
CY2021	ceg	Defined Benefit Plan Net Periodic Benefit Cost Credit Non Service Costs Excluding Capitalization And Reclassification DefinedBenefitPlanNetPeriodicBenefitCostCreditNonServiceCostsExcludingCapitalizationAndReclassification	0	usd
CY2020	ceg	Defined Benefit Plan Net Periodic Benefit Cost Credit Non Service Costs Excluding Capitalization And Reclassification DefinedBenefitPlanNetPeriodicBenefitCostCreditNonServiceCostsExcludingCapitalizationAndReclassification	0	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-13000000	usd
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-160000000	usd
CY2020	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	186000000	usd
CY2022	ceg	Decommissioning Related Activities Return To Provision Adjustment DecommissioningRelatedActivitiesReturnToProvisionAdjustment	-49000000	usd
CY2021	ceg	Decommissioning Related Activities Return To Provision Adjustment DecommissioningRelatedActivitiesReturnToProvisionAdjustment	0	usd
CY2020	ceg	Decommissioning Related Activities Return To Provision Adjustment DecommissioningRelatedActivitiesReturnToProvisionAdjustment	0	usd
CY2022	us-gaap	Depreciation Depreciation	1065000000	usd
CY2021	us-gaap	Depreciation Depreciation	2954000000	usd
CY2020	us-gaap	Depreciation Depreciation	2070000000	usd
CY2022	us-gaap	Amortization Of Nuclear Fuel Lease AmortizationOfNuclearFuelLease	758000000	usd
CY2021	us-gaap	Amortization Of Nuclear Fuel Lease AmortizationOfNuclearFuelLease	992000000	usd
CY2020	us-gaap	Amortization Of Nuclear Fuel Lease AmortizationOfNuclearFuelLease	983000000	usd
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	543000000	usd
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	514000000	usd
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	500000000	usd
CY2022	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	2427000000	usd
CY2021	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	4540000000	usd
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3636000000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	230000000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	275000000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	331000000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	287000000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	426000000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	70000000	usd
CY2022	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	17000000	usd
CY2021	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	123000000	usd
CY2020	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	115000000	usd
CY2022	ceg	Other Decommissioning Related Activity Gain Loss OtherDecommissioningRelatedActivityGainLoss	-263000000	usd
CY2021	ceg	Other Decommissioning Related Activity Gain Loss OtherDecommissioningRelatedActivityGainLoss	-946000000	usd
CY2020	ceg	Other Decommissioning Related Activity Gain Loss OtherDecommissioningRelatedActivityGainLoss	-659000000	usd
CY2022	ceg	Energy Related Options EnergyRelatedOptions	293000000	usd
CY2021	ceg	Energy Related Options EnergyRelatedOptions	125000000	usd
CY2020	ceg	Energy Related Options EnergyRelatedOptions	104000000	usd
CY2022	us-gaap	Restructuring Costs RestructuringCosts	-1000000	usd
CY2021	us-gaap	Restructuring Costs RestructuringCosts	-73000000	usd
CY2020	us-gaap	Restructuring Costs RestructuringCosts	90000000	usd
CY2022	ceg	Long Term Incentive Plan LongTermIncentivePlan	44000000	usd
CY2021	ceg	Long Term Incentive Plan LongTermIncentivePlan	0	usd
CY2020	ceg	Long Term Incentive Plan LongTermIncentivePlan	0	usd
CY2022	ceg	Provision For Excess And Obsolete Inventory ProvisionForExcessAndObsoleteInventory	12000000	usd
CY2021	ceg	Provision For Excess And Obsolete Inventory ProvisionForExcessAndObsoleteInventory	13000000	usd
CY2020	ceg	Provision For Excess And Obsolete Inventory ProvisionForExcessAndObsoleteInventory	-128000000	usd
CY2022	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	75000000	usd
CY2021	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	119000000	usd
CY2020	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	155000000	usd
CY2022	us-gaap	Securitization Financial Asset For Which Transfer Is Accounted As Sale Gain Loss On Sale SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale	-69000000	usd
CY2021	us-gaap	Securitization Financial Asset For Which Transfer Is Accounted As Sale Gain Loss On Sale SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale	-36000000	usd
CY2020	us-gaap	Securitization Financial Asset For Which Transfer Is Accounted As Sale Gain Loss On Sale SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale	-30000000	usd
CY2022	ceg	Gas Imbalances Fair Value Adjustment GasImbalancesFairValueAdjustment	37000000	usd
CY2021	ceg	Gas Imbalances Fair Value Adjustment GasImbalancesFairValueAdjustment	0	usd
CY2020	ceg	Gas Imbalances Fair Value Adjustment GasImbalancesFairValueAdjustment	0	usd
CY2022	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	50000000	usd
CY2021	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	usd
CY2020	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	422000000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	106000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	528000000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	504000000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	72000000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	576000000	usd
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	226000000	usd
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	89000000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	12000000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	327000000	usd
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	303000000	usd
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	146000000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	449000000	usd
CY2022Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	46000000	usd
CY2021Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	33000000	usd
CY2022Q4	us-gaap	Long Term Investments LongTermInvestments	202000000	usd
CY2021Q4	us-gaap	Long Term Investments LongTermInvestments	174000000	usd
CY2022Q4	ceg	Accrued Compensation Current AccruedCompensationCurrent	540000000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	257000000	usd
CY2021Q4	ceg	Accrued Compensation Current AccruedCompensationCurrent	356000000	usd
CY2021Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	272000000	usd
CY2022	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	160000000	usd
CY2021	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1188000000	usd
CY2020	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1211000000	usd
CY2021Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	160000000	usd
CY2021Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	131000000	usd
CY2022	dei	Auditor Firm AuditorFirmId	238

Files In Submission

Name	View Source	Status
0001868275-23-000014-index-headers.html	Edgar Link	pending
0001868275-23-000014-index.html	Edgar Link	pending
0001868275-23-000014.txt	Edgar Link	pending
0001868275-23-000014-xbrl.zip	Edgar Link	pending
ceg-20221231.htm	Edgar Link	pending
ceg-20221231.xsd	Edgar Link	pending
ceg-20221231x10kxexh211.htm	Edgar Link	pending
ceg-20221231x10kxexh212.htm	Edgar Link	pending
ceg-20221231x10kxexh231.htm	Edgar Link	pending
ceg-20221231x10kxexh241.htm	Edgar Link	pending
ceg-20221231x10kxexh242.htm	Edgar Link	pending
ceg-20221231x10kxexh243.htm	Edgar Link	pending
ceg-20221231x10kxexh244.htm	Edgar Link	pending
ceg-20221231x10kxexh245.htm	Edgar Link	pending
ceg-20221231x10kxexh246.htm	Edgar Link	pending
ceg-20221231x10kxexh247.htm	Edgar Link	pending
ceg-20221231x10kxexh248.htm	Edgar Link	pending
ceg-20221231x10kxexh249.htm	Edgar Link	pending
ceg-20221231x10kxexh311.htm	Edgar Link	pending
ceg-20221231x10kxexh312.htm	Edgar Link	pending
ceg-20221231x10kxexh313.htm	Edgar Link	pending
ceg-20221231x10kxexh314.htm	Edgar Link	pending
ceg-20221231x10kxexh321.htm	Edgar Link	pending
ceg-20221231x10kxexh322.htm	Edgar Link	pending
ceg-20221231x10kxexh323.htm	Edgar Link	pending
ceg-20221231x10kxexh324.htm	Edgar Link	pending
ceg-20221231_g1.jpg	Edgar Link	pending
ceg-20221231_g2.jpg	Edgar Link	pending
ceg-20221231_g3.jpg	Edgar Link	pending
ceg-20221231_g4.jpg	Edgar Link	pending
ceg-20221231_g5.jpg	Edgar Link	pending
ceg-20221231_g6.jpg	Edgar Link	pending
ceg-20221231_g7.jpg	Edgar Link	pending
ceg-20221231_g8.jpg	Edgar Link	pending
ceg-20221231_g9.jpg	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	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
R123.htm	Edgar Link	pending
R124.htm	Edgar Link	pending
R125.htm	Edgar Link	pending
R126.htm	Edgar Link	pending
R127.htm	Edgar Link	pending
R128.htm	Edgar Link	pending
R129.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R130.htm	Edgar Link	pending
R131.htm	Edgar Link	pending
R132.htm	Edgar Link	pending
R133.htm	Edgar Link	pending
R134.htm	Edgar Link	pending
ceg-20221231_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
ceg-20221231_htm.xml	Edgar Link	completed
R135.htm	Edgar Link	pending
R136.htm	Edgar Link	pending
R137.htm	Edgar Link	pending
R138.htm	Edgar Link	pending
R139.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R140.htm	Edgar Link	pending
R141.htm	Edgar Link	pending
R142.htm	Edgar Link	pending
R143.htm	Edgar Link	pending
R144.htm	Edgar Link	pending
R145.htm	Edgar Link	pending
R146.htm	Edgar Link	pending
R147.htm	Edgar Link	pending
R148.htm	Edgar Link	pending
R149.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R150.htm	Edgar Link	pending
R151.htm	Edgar Link	pending
R152.htm	Edgar Link	pending
R153.htm	Edgar Link	pending
R154.htm	Edgar Link	pending
R155.htm	Edgar Link	pending
R156.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
R9999.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
ceg-20221231_lab.xml	Edgar Link	unprocessable
ceg-20221231_def.xml	Edgar Link	unprocessable
ceg-20221231_cal.xml	Edgar Link	unprocessable

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$CEG
Constellation Energy Corp Stock $ceg

2023 Q1 Form 10-K Financial Statement

#000186827523000014 Filed on February 16, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CEG Constellation Energy Corp Stock $ceg

2023 Q1 Form 10-K Financial Statement

#000186827523000014 Filed on February 16, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CEG
Constellation Energy Corp Stock $ceg