$NRG
NRG Energy Inc Stock $nrg

$nrg Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000101387124000005 Filed on February 28, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$7.429B	$6.807B	$28.82B
YoY Change	-3.79%	-13.34%	-8.62%
Cost Of Revenue	$5.685B	$6.365B	$26.53B
YoY Change	-35.24%	-27.89%	-3.35%
Gross Profit	$1.744B	$442.0M	$2.297B
YoY Change	-265.15%	-145.47%	-43.93%
Gross Profit Margin	23.48%	6.49%	7.97%
Selling, General & Admin	$591.0M	$633.0M	$1.968B
YoY Change	38.73%	288.34%	60.26%
% of Gross Profit	33.89%	143.21%	85.68%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$268.0M	$345.0M	$1.127B
YoY Change	41.05%	75.13%	77.76%
% of Gross Profit	15.37%	78.05%	49.06%
Operating Expenses	$591.0M	$947.0M	$1.968B
YoY Change	38.73%	203.53%	60.26%
Operating Profit	$872.0M	-$505.0M	$384.0M
YoY Change	-156.48%	-60.67%	-80.97%
Interest Expense	$152.0M	-$195.0M	$667.0M
YoY Change	2.7%	98.98%	59.95%
% of Operating Profit	17.43%		173.7%
Other Income/Expense, Net	-$177.0M	$4.000M	-$597.0M
YoY Change	39.37%	-82.61%	68.17%
Pretax Income	$695.0M	$653.0M	-$213.0M
YoY Change	-141.59%	-146.91%	-112.81%
Income Tax	$184.0M	$171.0M	-$11.00M
% Of Pretax Income	26.47%	26.19%
Net Earnings	$511.0M	$466.0M	-$202.0M
YoY Change	-138.28%	-142.56%	-116.54%
Net Earnings / Revenue	6.88%	6.85%	-0.7%
Basic Earnings Per Share	$2.36		-$1.12
Diluted Earnings Per Share	$2.31	$2.10	-$1.12
COMMON SHARES
Basic Shares Outstanding	208.0M shares	225.8M shares	228.0M shares
Diluted Shares Outstanding	214.0M shares		228.0M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$278.0M	$541.0M	$541.0M
YoY Change	-31.7%	25.81%	25.81%
Cash & Equivalents	$278.0M	$541.0M	$541.0M
Short-Term Investments
Other Short-Term Assets	$5.084B	$5.037B	$5.037B
YoY Change	-8.56%	-50.99%	-50.99%
Inventory	$581.0M	$607.0M	$607.0M
Prepaid Expenses
Receivables	$3.325B	$3.542B	$3.542B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$9.268B	$9.727B	$9.727B
YoY Change	-9.21%	-40.07%	-40.07%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.947B	$1.942B	$1.942B
YoY Change	-6.48%	1.3%	1.3%
Goodwill	$5.076B	$5.079B
YoY Change	-5.0%	207.82%
Intangibles
YoY Change
Long-Term Investments	$43.00M	$42.00M	$48.00M
YoY Change	-68.38%	-68.42%	-63.91%
Other Assets	$842.0M	$777.0M	$5.315B
YoY Change	137.85%	203.52%	-24.96%
Total Long-Term Assets	$16.13B	$16.31B	$16.31B
YoY Change	-17.22%	26.3%	26.3%
TOTAL ASSETS
Total Short-Term Assets	$9.268B	$9.727B	$9.727B
Total Long-Term Assets	$16.13B	$16.31B	$16.31B
Total Assets	$25.40B	$26.04B	$26.04B
YoY Change	-14.46%	-10.66%	-10.66%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.027B	$2.325B	$2.325B
YoY Change	-13.0%	-36.18%	-36.18%
Accrued Expenses	$1.506B	$1.732B	$1.732B
YoY Change	-9.11%	26.15%	26.15%
Deferred Revenue	$710.0M	$720.0M
YoY Change	3.2%	309.09%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$1.101B	$620.0M	$620.0M
YoY Change	13.39%	884.13%	884.13%
Total Short-Term Liabilities	$9.176B	$9.500B	$9.500B
YoY Change	-11.14%	-26.82%	-26.82%
LONG-TERM LIABILITIES
Long-Term Debt	$9.559B	$10.13B	$10.13B
YoY Change	-15.65%	27.04%	27.04%
Other Long-Term Liabilities	$939.0M	$947.0M	$3.477B
YoY Change	-8.83%	-3.66%	-17.72%
Total Long-Term Liabilities	$12.93B	$13.63B	$13.61B
YoY Change	-20.64%	10.51%	11.54%
TOTAL LIABILITIES
Total Short-Term Liabilities	$9.176B	$9.500B	$9.500B
Total Long-Term Liabilities	$12.93B	$13.63B	$13.61B
Total Liabilities	$22.10B	$23.13B	$23.13B
YoY Change	-16.95%	-8.63%	-8.63%
SHAREHOLDERS EQUITY
Retained Earnings	$1.212B	$820.0M
YoY Change	-8180.0%	-41.76%
Common Stock	$3.506B	$3.419B
YoY Change	-58.68%	-59.59%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.971B	$1.892B
YoY Change	-66.39%	-67.74%
Treasury Stock Shares
Shareholders Equity	$3.297B	$2.906B	$2.906B
YoY Change
Total Liabilities & Shareholders Equity	$25.40B	$26.04B	$26.04B
YoY Change	-14.46%	-10.66%	-10.66%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$511.0M	$466.0M	-$202.0M
YoY Change	-138.28%	-142.56%	-116.54%
Depreciation, Depletion And Amortization	$268.0M	$345.0M	$1.127B
YoY Change	41.05%	75.13%	77.76%
Cash From Operating Activities	$267.0M	$241.0M	-$221.0M
YoY Change	-116.71%	-117.24%	-161.39%
INVESTING ACTIVITIES
Capital Expenditures	$69.00M	$105.0M	$598.0M
YoY Change	-51.41%	-10.26%	62.94%
Acquisitions	$22.00M
YoY Change	-99.12%
Other Investing Activities	-$23.00M	$1.826B	-$312.0M
YoY Change	-98.96%	-18360.0%	-991.43%
Cash From Investing Activities	-$92.00M	$1.721B	-$910.0M
YoY Change	-96.09%	-1455.12%	174.1%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$1.172B
YoY Change			93.4%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$288.0M	-1.990B	-$400.0M
YoY Change	-111.36%	-1158.51%	-138.35%
NET CHANGE
Cash From Operating Activities	$267.0M	241.0M	-$221.0M
Cash From Investing Activities	-$92.00M	1.721B	-$910.0M
Cash From Financing Activities	-$288.0M	-1.990B	-$400.0M
Net Change In Cash	-$115.0M	-28.00M	-$1.529B
YoY Change	-91.84%	-97.91%	-243.16%
FREE CASH FLOW
Cash From Operating Activities	$267.0M	$241.0M	-$221.0M
Capital Expenditures	$69.00M	$105.0M	$598.0M
Free Cash Flow	$198.0M	$136.0M	-$819.0M
YoY Change	-111.38%	-108.98%	11600.0%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3542000000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	607000000	usd
CY2023Q4	us-gaap	Derivative Instruments And Hedges DerivativeInstrumentsAndHedges	3862000000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	626000000	usd
CY2022Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	838000000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	256000000	usd
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	39000000	usd
CY2023Q4	us-gaap	Decommissioning Liability Noncurrent DecommissioningLiabilityNoncurrent	0	usd
CY2023Q4	nrg	Nuclear Decommissioning Trust Fund Liability Noncurrent NuclearDecommissioningTrustFundLiabilityNoncurrent	0	usd
CY2023Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	1488000000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	22000000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	914000000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	947000000	usd
CY2022Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	12336000000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	25318000000	usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
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CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	423897001	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	229561030	shares
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	4000000	usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	8457000000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1408000000	usd
CY2022Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	194335971	shares
CY2022Q4	us-gaap	Treasury Stock Value TreasuryStockValue	5864000000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-177000000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	29146000000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	1221000000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	2187000000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	6000000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-7000000	usd
CY2021	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	9000000	shares
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001013871
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021Q4	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2023#AccountingStandardsUpdate202006Member
CY2023	nrg	Period Beyondwhich Comapny Can Not Predict Holdingof Collateral PeriodBeyondwhichComapnyCanNotPredictHoldingofCollateral	P12M
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023	dei	Auditor Name AuditorName	KPMG LLP
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CY2023Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2023	nrg	Estimated Counterparty Credit Risk Exposure To Certain Counterparties Period EstimatedCounterpartyCreditRiskExposureToCertainCounterpartiesPeriod	P5Y
CY2023Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#LongTermDebtAndCapitalLeaseObligations
CY2022Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#LongTermDebtAndCapitalLeaseObligations
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	001-15891
CY2023	dei	Entity Registrant Name EntityRegistrantName	NRG Energy, Inc
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	41-1724239
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	910 Louisiana Street
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77002
CY2023	dei	City Area Code CityAreaCode	713
CY2023	dei	Local Phone Number LocalPhoneNumber	537-3000
CY2023	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01
CY2023	dei	Trading Symbol TradingSymbol	NRG
CY2023	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	6266747422	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	208021012	shares
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CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	true
CY2023	dei	Auditor Location AuditorLocation	Philadelphia, PA
CY2023	dei	Auditor Firm AuditorFirmId	185
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CY2023	us-gaap	Revenues Revenues	28823000000	usd
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CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1127000000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	634000000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	785000000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	26000000	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	206000000	usd
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	544000000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1968000000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1228000000	usd
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CY2022	nrg	Business Combination Acquisition And Integration Costs BusinessCombinationAcquisitionAndIntegrationCosts	52000000	usd
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CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.12
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CY2022Q4	nrg	Derivative Liability Not Subject To Master Netting Arrangement Collateral Right To Reclaim Cash Not Offset DerivativeLiabilityNotSubjectToMasterNettingArrangementCollateralRightToReclaimCashNotOffset	260000000	usd
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CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	7976000000	usd
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CY2022Q4	us-gaap	Decommissioning Liability Noncurrent DecommissioningLiabilityNoncurrent	340000000	usd
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CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	650000	shares
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CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	650000000	usd
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CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
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CY2023Q4	us-gaap	Common Stock Value CommonStockValue	3000000	usd
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CY2023Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1892000000	usd
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CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3828000000	usd
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CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	251000000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	11000000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	698000000	usd
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CY2021	nrg	Gains Losses On Extinguishment Of Debt Non Cash Portion GainsLossesOnExtinguishmentOfDebtNonCashPortion	-77000000	usd
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CY2022	nrg	Amortization Of Intangibles In The Money Contracts And Retirement Of Re Cs AmortizationOfIntangiblesInTheMoneyContractsAndRetirementOfRECs	158000000	usd
CY2021	nrg	Amortization Of Intangibles In The Money Contracts And Retirement Of Re Cs AmortizationOfIntangiblesInTheMoneyContractsAndRetirementOfRECs	106000000	usd
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CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	21000000	usd
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CY2021	nrg	Changes In Collateral Deposits Supporting Energy Risk Management Activities ChangesInCollateralDepositsSupportingEnergyRiskManagementActivities	797000000	usd
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CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1172000000	usd
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CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	3930000000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	649000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	2178000000	usd
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CY2021	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	2187000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	80000000	usd
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	4000000	usd
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	44000000	usd
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1000000	usd
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	320000000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3600000000	usd
CY2022	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	1221000000	usd
CY2022	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	6000000	usd
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	595000000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	24000000	usd
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	334000000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3828000000	usd
CY2023	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	-202000000	usd
CY2023	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	635000000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	39000000	usd
CY2023	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	8000000	usd
CY2023	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1160000000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	97000000	usd
CY2023	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	352000000	usd
CY2023	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	34000000	usd
CY2023	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	47000000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2906000000	usd
CY2021	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	9000000	shares
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.30
CY2023	nrg	Treasury Stock Value Acquired Cost Method Excise Tax TreasuryStockValueAcquiredCostMethodExciseTax	10000000	usd
CY2023	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	52.96
CY2023	us-gaap	Nature Of Operations NatureOfOperations	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Nature of Business</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><div style="margin-bottom:6pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">General</span></div><div style="margin-bottom:6pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">NRG Energy, Inc., or NRG or the Company, sits at the intersection of energy and home services. NRG is a leading energy and home services company fueled by market-leading brands, proprietary technologies, and complementary sales channels. Across the United States and Canada, NRG delivers innovative, sustainable solutions, predominately under the brand names such as NRG, Reliant, Direct Energy, Green Mountain Energy and Vivint, while also advocating for competitive energy markets and customer choice. The Company has a customer base that includes approximately 8 million residential consumers in addition to commercial, industrial, and wholesale customers, supported by approximately 13 GW of generation.</span></div><div style="margin-bottom:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">The Company's business is segmented as follows:</span></div><div style="margin-bottom:3pt;padding-left:36pt;text-align:justify;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">Texas, which includes all activity related to customer, plant and market operations in Texas, other than Cottonwood; </span></div><div style="margin-bottom:3pt;padding-left:36pt;text-align:justify;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">East, which includes all activity related to customer, plant and market operations in the East; </span></div><div style="margin-bottom:3pt;padding-left:36pt;text-align:justify;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">West/Services/Other, which includes the following assets and activities: (i) all activity related to customer, plant and market operations in the West and Canada, (ii) the Services businesses (iii) activity related to the Cottonwood facility and other investments;</span></div><div style="margin-bottom:3pt;padding-left:36pt;text-align:justify;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">Vivint Smart Home; and</span></div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span>Corporate activities.
CY2023Q4	nrg	Power Generation Capacity Megawatts PowerGenerationCapacityMegawatts	13	mw
CY2022Q2	nrg	Proceeds From Government Grant ProceedsFromGovernmentGrant	689000000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	133000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	683000000	usd
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	67000000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	251000000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	11000000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	698000000	usd
CY2023	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	313000000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	593000000	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	224000000	usd
CY2023	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	39000000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	32000000	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	30000000	usd
CY2023	nrg	Accounts Receivable Allowance For Credit Loss Other AccountsReceivableAllowanceForCreditLossOther	13000000	usd
CY2022	nrg	Accounts Receivable Allowance For Credit Loss Other AccountsReceivableAllowanceForCreditLossOther	0	usd
CY2021	nrg	Accounts Receivable Allowance For Credit Loss Other AccountsReceivableAllowanceForCreditLossOther	0	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	145000000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	133000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	683000000	usd
CY2022	nrg	Accounts Receivable Allowance For Credit Loss Increase Decrease Due Finance Hedge Risk AccountsReceivableAllowanceForCreditLossIncreaseDecreaseDueFinanceHedgeRisk	-70000000	usd
CY2021	nrg	Accounts Receivable Allowance For Credit Loss Increase Decrease Due Finance Hedge Risk AccountsReceivableAllowanceForCreditLossIncreaseDecreaseDueFinanceHedgeRisk	403000000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	541000000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	430000000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	250000000	usd
CY2023Q4	nrg	Funds Deposited By Counterparties FundsDepositedByCounterparties	84000000	usd
CY2022Q4	nrg	Funds Deposited By Counterparties FundsDepositedByCounterparties	1708000000	usd
CY2021Q4	nrg	Funds Deposited By Counterparties FundsDepositedByCounterparties	845000000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	24000000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	40000000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	15000000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	649000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	2178000000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	1110000000	usd
CY2023	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	7000000	usd
CY2022	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	81000000	usd
CY2021	nrg	Gross Receipts Tax GrossReceiptsTax	184000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	3000000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2100000000	usd
CY2023	nrg	Contract With Customer Term ContractWithCustomerTerm	P5Y
CY2023	nrg	Gross Receipts Tax GrossReceiptsTax	212000000	usd
CY2022	nrg	Gross Receipts Tax GrossReceiptsTax	218000000	usd
CY2023	nrg	Cost Of Services Energy Services Unbilled CostOfServicesEnergyServicesUnbilled	240000000	usd
CY2022	nrg	Cost Of Services Energy Services Unbilled CostOfServicesEnergyServicesUnbilled	202000000	usd
CY2021	nrg	Cost Of Services Energy Services Unbilled CostOfServicesEnergyServicesUnbilled	189000000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-43000000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-55000000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-8000000	usd
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-bottom:6pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Concentrations of Credit Risk</span></div><div style="margin-bottom:6pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of trust funds, accounts receivable, notes receivable, derivatives and investments in debt securities. Trust funds are held in accounts managed by experienced investment advisors. Certain accounts receivable, notes receivable, and derivative instruments are concentrated within entities engaged in the energy industry. These industry concentrations may impact the Company's overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other conditions. Receivables and other contractual arrangements are subject to collateral requirements under the terms of enabling agreements. However, the Company believes that the credit risk posed by industry concentration is offset by the diversification and creditworthiness of its customer base. See Note 5, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Fair Value of Financial Instruments,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> for a further discussion of derivative concentrations.</span></div>
CY2023	us-gaap	Advertising Expense AdvertisingExpense	185000000	usd
CY2022	us-gaap	Advertising Expense AdvertisingExpense	82000000	usd
CY2021	us-gaap	Advertising Expense AdvertisingExpense	109000000	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:6pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-bottom:6pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. </span></div><div style="margin-bottom:6pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In recording transactions and balances resulting from business operations, the Company uses estimates based on the best information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, actuarially determined benefit costs, the valuation of energy commodity contracts, environmental liabilities, legal costs incurred in connection with recorded loss contingencies, and assets acquired and liabilities assumed in business combinations, among others. In addition, estimates are used to test long-lived assets and goodwill for impairment and to determine the fair value of impaired assets. As better information becomes available or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.</span></div>
CY2023	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="margin-bottom:6pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Reclassifications</span></div><div style="margin-bottom:6pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain prior period amounts have been reclassified for comparative purposes. The reclassifications did not affect results from operations, net assets or cash flows.</span></div>
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1400000000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1000000000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	756000000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	468000000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	176000000	usd
CY2023	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	52000000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	28256000000	usd
CY2022	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	35000000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	31488000000	usd
CY2021	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	-22000000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	26777000000	usd
CY2023Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	706000000	usd
CY2022Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	126000000	usd
CY2023Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	3542000000	usd
CY2022Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	4773000000	usd
CY2023Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	1493000000	usd
CY2022Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	1952000000	usd
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1634000000	usd
CY2022Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	186000000	usd
CY2023	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	168000000	usd
CY2022	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	86000000	usd
CY2021	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	95000000	usd
CY2023	nrg	Contractwith Customer Liability Increase For Cash Payments Received ContractwithCustomerLiabilityIncreaseForCashPaymentsReceived	1600000000	usd
CY2022	nrg	Contractwith Customer Liability Increase For Cash Payments Received ContractwithCustomerLiabilityIncreaseForCashPaymentsReceived	175000000	usd
CY2023	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	168000000	usd
CY2022	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	184000000	usd
CY2023Q4	us-gaap	Capitalized Contract Cost Amortization Period CapitalizedContractCostAmortizationPeriod	P5Y
CY2023Q1	nrg	Business Acquisition Shares Outstanding BusinessAcquisitionSharesOutstanding	216901639	shares
CY2023Q4	nrg	Disposal Group Not Discontinued Operation Gain Loss On Disposal Statement Of Income Extensible List Not Disclosed Flag DisposalGroupNotDiscontinuedOperationGainLossOnDisposalStatementOfIncomeExtensibleListNotDisclosedFlag	82 million
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	21000000	usd
CY2023Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	6182000000	usd
CY2023Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	5507000000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	19000000	usd
CY2022Q4	us-gaap	Financial Instruments Owned Us Government And Agency Obligations At Fair Value FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue	1000000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	12858000000	usd
CY2022Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	8441000000	usd
CY2023Q4	nrg	Derivative Asset Fair Value Determined Using Valuation Techniques Percentage DerivativeAssetFairValueDeterminedUsingValuationTechniquesPercentage	0.05
CY2023Q4	nrg	Derivative Liability Fair Value Determined Using Valuation Techniques Percentage DerivativeLiabilityFairValueDeterminedUsingValuationTechniquesPercentage	0.06
CY2023	nrg	Change In Credit Reserve ChangeInCreditReserve	-18000000	usd
CY2022	nrg	Change In Credit Reserve ChangeInCreditReserve	-9000000	usd
CY2023Q4	nrg	Derivative Liability Not Subject To Master Netting Arrangement Collateral Right To Reclaim Cash Not Offset DerivativeLiabilityNotSubjectToMasterNettingArrangementCollateralRightToReclaimCashNotOffset	441000000	usd
CY2023Q4	nrg	Derivative Asset Not Subject To Master Netting Arrangement Collateral Obligation To Return Cash Not Offset DerivativeAssetNotSubjectToMasterNettingArrangementCollateralObligationToReturnCashNotOffset	84000000	usd
CY2023Q4	nrg	Amount Of Credit Exposure To Significant Portion Of All Counterparties AmountOfCreditExposureToSignificantPortionOfAllCounterparties	1600000000	usd
CY2023Q4	nrg	Collateral Held Cash And Letters Of Credit CollateralHeldCashAndLettersOfCredit	426000000	usd
CY2023Q4	nrg	Net Credit Exposure NetCreditExposure	1200000000	usd
CY2023	nrg	Counterparty Credit Risk Exposure Percentage Of Credit Risk Roll Off CounterpartyCreditRiskExposurePercentageOfCreditRiskRollOff	0.63
CY2023Q4	nrg	Credit Derivative Maximum Net Exposure Percentage CreditDerivativeMaximumNetExposurePercentage	1
CY2023Q4	nrg	Credit Derivative Maximum Net Exposure Percentage CreditDerivativeMaximumNetExposurePercentage	1
CY2023	nrg	Counterparty Credit Risk Exposure Percentage Threshold CounterpartyCreditRiskExposurePercentageThreshold	0.10
CY2023	nrg	Estimated Counterparty Credit Risk Exposure To Certain Counterparties EstimatedCounterpartyCreditRiskExposureToCertainCounterparties	882000000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	251000000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	11000000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	698000000	usd
CY2023Q4	nrg	Fair Valueof Gross Derivative Assets Liabilities Net FairValueofGrossDerivativeAssetsLiabilitiesNet	648000000	usd
CY2023Q4	nrg	Derivative Asset Fair Value Gross Liability Net Of Derivative Liability Fair Value Gross Asset DerivativeAssetFairValueGrossLiabilityNetOfDerivativeLiabilityFairValueGrossAsset	0	usd
CY2023Q4	nrg	Derivative Collateral Obligation To Return Cash Net Of Derivative Collateral Right To Reclaim Cash DerivativeCollateralObligationToReturnCashNetOfDerivativeCollateralRightToReclaimCash	71000000	usd
CY2023Q4	nrg	Derivative Asset Fair Value Amount Offset Against Collateral Net Of Derivative Liability Fair Value Amount Offset Against Collateral DerivativeAssetFairValueAmountOffsetAgainstCollateralNetOfDerivativeLiabilityFairValueAmountOffsetAgainstCollateral	719000000	usd
CY2022Q4	nrg	Fair Valueof Gross Derivative Assets Liabilities Net FairValueofGrossDerivativeAssetsLiabilitiesNet	3553000000	usd
CY2022Q4	nrg	Derivative Asset Fair Value Gross Liability Net Of Derivative Liability Fair Value Gross Asset DerivativeAssetFairValueGrossLiabilityNetOfDerivativeLiabilityFairValueGrossAsset	0	usd
CY2022Q4	nrg	Derivative Collateral Obligation To Return Cash Net Of Derivative Collateral Right To Reclaim Cash DerivativeCollateralObligationToReturnCashNetOfDerivativeCollateralRightToReclaimCash	-1639000000	usd
CY2022Q4	nrg	Derivative Asset Fair Value Amount Offset Against Collateral Net Of Derivative Liability Fair Value Amount Offset Against Collateral DerivativeAssetFairValueAmountOffsetAgainstCollateralNetOfDerivativeLiabilityFairValueAmountOffsetAgainstCollateral	1914000000	usd
CY2023	nrg	Reversal Previously Recognized Unrealized Gains Losses Settled Positions Economic Hedges ReversalPreviouslyRecognizedUnrealizedGainsLossesSettledPositionsEconomicHedges	1734000000	usd
CY2022	nrg	Reversal Previously Recognized Unrealized Gains Losses Settled Positions Economic Hedges ReversalPreviouslyRecognizedUnrealizedGainsLossesSettledPositionsEconomicHedges	1232000000	usd
CY2021	nrg	Reversal Previously Recognized Unrealized Gains Losses Settled Positions Economic Hedges ReversalPreviouslyRecognizedUnrealizedGainsLossesSettledPositionsEconomicHedges	41000000	usd
CY2023	nrg	Reversal Previously Recognized Unrealized Gains Losses Acquiredas Partof Acquisition Economic Hedges ReversalPreviouslyRecognizedUnrealizedGainsLossesAcquiredasPartofAcquisitionEconomicHedges	-20000000	usd
CY2022	nrg	Reversal Previously Recognized Unrealized Gains Losses Acquiredas Partof Acquisition Economic Hedges ReversalPreviouslyRecognizedUnrealizedGainsLossesAcquiredasPartofAcquisitionEconomicHedges	-2000000	usd
CY2021	nrg	Reversal Previously Recognized Unrealized Gains Losses Acquiredas Partof Acquisition Economic Hedges ReversalPreviouslyRecognizedUnrealizedGainsLossesAcquiredasPartofAcquisitionEconomicHedges	-256000000	usd
CY2023	nrg	Unrealized Gain Loss On Derivatives Mark To Market Economic Hedging Activities UnrealizedGainLossOnDerivativesMarkToMarketEconomicHedgingActivities	-2863000000	usd
CY2022	nrg	Unrealized Gain Loss On Derivatives Mark To Market Economic Hedging Activities UnrealizedGainLossOnDerivativesMarkToMarketEconomicHedgingActivities	1248000000	usd
CY2021	nrg	Unrealized Gain Loss On Derivatives Mark To Market Economic Hedging Activities UnrealizedGainLossOnDerivativesMarkToMarketEconomicHedgingActivities	2716000000	usd
CY2023	nrg	Reversal Previously Unrecognized Unrealized Gains Losses Settled Positions Trading Activity ReversalPreviouslyUnrecognizedUnrealizedGainsLossesSettledPositionsTradingActivity	-13000000	usd
CY2022	nrg	Reversal Previously Unrecognized Unrealized Gains Losses Settled Positions Trading Activity ReversalPreviouslyUnrecognizedUnrealizedGainsLossesSettledPositionsTradingActivity	-13000000	usd
CY2021	nrg	Reversal Previously Unrecognized Unrealized Gains Losses Settled Positions Trading Activity ReversalPreviouslyUnrecognizedUnrealizedGainsLossesSettledPositionsTradingActivity	18000000	usd
CY2023	nrg	Reversal Of Acquired Gain Positions Related To Trading Activity ReversalOfAcquiredGainPositionsRelatedToTradingActivity	0	usd
CY2022	nrg	Reversal Of Acquired Gain Positions Related To Trading Activity ReversalOfAcquiredGainPositionsRelatedToTradingActivity	0	usd
CY2021	nrg	Reversal Of Acquired Gain Positions Related To Trading Activity ReversalOfAcquiredGainPositionsRelatedToTradingActivity	1000000	usd
CY2023	nrg	Derivative Unrealized Gains On Open Positions Related To Trading Activity Net DerivativeUnrealizedGainsOnOpenPositionsRelatedToTradingActivityNet	25000000	usd
CY2022	nrg	Derivative Unrealized Gains On Open Positions Related To Trading Activity Net DerivativeUnrealizedGainsOnOpenPositionsRelatedToTradingActivityNet	-17000000	usd
CY2021	nrg	Derivative Unrealized Gains On Open Positions Related To Trading Activity Net DerivativeUnrealizedGainsOnOpenPositionsRelatedToTradingActivityNet	-13000000	usd
CY2023	nrg	Unrealized Gain Losson Derivatives Mark To Market Trading Activities UnrealizedGainLossonDerivativesMarkToMarketTradingActivities	38000000	usd
CY2022	nrg	Unrealized Gain Losson Derivatives Mark To Market Trading Activities UnrealizedGainLossonDerivativesMarkToMarketTradingActivities	-4000000	usd
CY2021	nrg	Unrealized Gain Losson Derivatives Mark To Market Trading Activities UnrealizedGainLossonDerivativesMarkToMarketTradingActivities	-32000000	usd
CY2023	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-2825000000	usd
CY2022	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	1244000000	usd
CY2021	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	2684000000	usd
CY2023	us-gaap	Unrealized Gain Loss On Energy Contracts UnrealizedGainLossOnEnergyContracts	1100000000	usd
CY2023Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	80000000	usd
CY2023Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	8000000	usd
CY2023Q4	us-gaap	Other Inventories Spare Parts OtherInventoriesSpareParts	68000000	usd
CY2022Q4	us-gaap	Other Inventories Spare Parts OtherInventoriesSpareParts	136000000	usd
CY2023Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	164000000	usd
CY2022Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	838000000	usd
CY2022	nrg	Decommissioning Fund Investments Unrealized Gains DecommissioningFundInvestmentsUnrealizedGains	346000000	usd
CY2022	nrg	Decommissioning Fund Investments Unrealized Loss DecommissioningFundInvestmentsUnrealizedLoss	36000000	usd
CY2023	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	11000000	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	14000000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	47000000	usd
CY2023	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	19000000	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	25000000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	9000000	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	355000000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	448000000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	710000000	usd
CY2023Q4	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	8000000	usd
CY2022Q4	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	8000000	usd
CY2023Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	178000000	usd
CY2022Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	114000000	usd
CY2023Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	189000000	usd
CY2022Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	385000000	usd
CY2022Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	108000000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	607000000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	751000000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	3058000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	3170000000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1295000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1478000000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	1763000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	1692000000	usd
CY2023	us-gaap	Depreciation Depreciation	257000000	usd
CY2022	us-gaap	Depreciation Depreciation	291000000	usd
CY2021	us-gaap	Depreciation Depreciation	384000000	usd
CY2023	nrg	Finance Lease Cost FinanceLeaseCost	8000000	usd
CY2022	nrg	Finance Lease Cost FinanceLeaseCost	4000000	usd
CY2021	nrg	Finance Lease Cost FinanceLeaseCost	4000000	usd
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	7000000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	4000000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	4000000	usd
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1000000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	0	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	0	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	93000000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	85000000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	91000000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	42000000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	7000000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	3000000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	91000000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	86000000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	9000000	usd
CY2023	us-gaap	Sublease Income SubleaseIncome	2000000	usd
CY2022	us-gaap	Sublease Income SubleaseIncome	2000000	usd
CY2021	us-gaap	Sublease Income SubleaseIncome	2000000	usd
CY2023	us-gaap	Lease Cost LeaseCost	232000000	usd
CY2022	us-gaap	Lease Cost LeaseCost	180000000	usd
CY2021	us-gaap	Lease Cost LeaseCost	105000000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	195000000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	183000000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	102000000	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	7000000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	5000000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	6000000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	17000000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	3000000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	16000000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	52000000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	28000000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	47000000	usd
CY2023Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y10M24D
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y7M6D
CY2023Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0487
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0282
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y7M6D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y3M18D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0600
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0537
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	118000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	86000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	34000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	24000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	17000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	32000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	311000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	93000000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	218000000	usd
CY2022Q2	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	130000000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	1795000000	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	130000000	usd
CY2022	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	6000000	usd
CY2022	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-9000000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	1650000000	usd
CY2023	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	3494000000	usd
CY2023	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	69000000	usd
CY2023	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	4000000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	5079000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	4244000000	usd
CY2023	nrg	Finite Lived Intangible Assets Purchases FiniteLivedIntangibleAssetsPurchases	475000000	usd
CY2023	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	2803000000	usd
CY2023	nrg	Finite Lived Intangible Assets Usage And Retirements FiniteLivedIntangibleAssetsUsageAndRetirements	474000000	usd
CY2023	nrg	Finite Lived Intangible Assets Write Off Of Fully Amortized Intangible Assets FiniteLivedIntangibleAssetsWriteOffOfFullyAmortizedIntangibleAssets	72000000	usd
CY2023	nrg	Finite Lived Intangible Assets Other Changes FiniteLivedIntangibleAssetsOtherChanges	4000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	6921000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2994000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3927000000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	4147000000	usd
CY2022	nrg	Finite Lived Intangible Assets Purchases FiniteLivedIntangibleAssetsPurchases	430000000	usd
CY2022	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	55000000	usd
CY2022	nrg	Finite Lived Intangible Assets Usage And Retirements FiniteLivedIntangibleAssetsUsageAndRetirements	374000000	usd
CY2022	nrg	Finite Lived Intangible Assets Write Off Of Fully Amortized Intangible Assets FiniteLivedIntangibleAssetsWriteOffOfFullyAmortizedIntangibleAssets	14000000	usd
CY2022	nrg	Finite Lived Intangible Assets Other Changes FiniteLivedIntangibleAssetsOtherChanges	0	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	4244000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2112000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	2132000000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1001000000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	490000000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	495000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	876000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	684000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	556000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	425000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	276000000	usd
CY2023Q4	us-gaap	Long Term Debt LongTermDebt	10940000000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	8100000000	usd
CY2023Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	19000000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	11000000	usd
CY2023Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	10959000000	usd
CY2022Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	8111000000	usd
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	620000000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	63000000	usd
CY2023Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	60000000	usd
CY2022Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	70000000	usd
CY2023Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	146000000	usd
CY2022Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	2000000	usd
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	10133000000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	7976000000	usd
CY2023Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	146000000	usd
CY2022Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	2000000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	620000000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	769000000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	16000000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1890000000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2145000000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	5519000000	usd
CY2023Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	10959000000	usd
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CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	244231933	shares
CY2021	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	1084752	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	243753899	shares
CY2022	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	14685521	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	229561030	shares
CY2023	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	22730940	shares
CY2023	us-gaap	Treasury Stock Shares Retired TreasuryStockSharesRetired	0	shares
CY2023	nrg	Common Stock Quarterly Dividends Per Share Cash Paid CommonStockQuarterlyDividendsPerShareCashPaid	0.3775
CY2022	nrg	Common Stock Quarterly Dividends Per Share Cash Paid CommonStockQuarterlyDividendsPerShareCashPaid	0.350
CY2021	nrg	Common Stock Quarterly Dividends Per Share Cash Paid CommonStockQuarterlyDividendsPerShareCashPaid	0.325
CY2023	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.51
CY2022	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.40
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.30
CY2023	nrg	Common Stock Dividends Proposed Annual Amount Per Share CommonStockDividendsProposedAnnualAmountPerShare	1.30
CY2022	nrg	Common Stock Dividends Proposed Annual Amount Per Share CommonStockDividendsProposedAnnualAmountPerShare	1.40
CY2021	nrg	Common Stock Dividends Proposed Annual Amount Per Share CommonStockDividendsProposedAnnualAmountPerShare	1.51
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	758000000	usd
CY2023	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-10000000	usd
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CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	usd
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CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2021	us-gaap	Profit Loss ProfitLoss	2187000000	usd
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CY2023	nrg	Common Stock Annual Dividends Increase Decrease Percentage CommonStockAnnualDividendsIncreaseDecreasePercentage	0.08
CY2022	nrg	Common Stock Annual Dividends Increase Decrease Percentage CommonStockAnnualDividendsIncreaseDecreasePercentage	0.08
CY2021	nrg	Common Stock Annual Dividends Increase Decrease Percentage CommonStockAnnualDividendsIncreaseDecreasePercentage	0.08
CY2023	nrg	Employee Stock Purchase Plan Minimum Percentageof Compensation Eligible EmployeeStockPurchasePlanMinimumPercentageofCompensationEligible	0.01
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CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Purchase Date ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate	0.90
CY2023	nrg	Employee Stock Purchase Plan Exercise Price As Percentage Of Fair Value EmployeeStockPurchasePlanExercisePriceAsPercentageOfFairValue	0.90
CY2023Q1	nrg	Employee Stock Purchase Plan Exercise Price As Percentage Of Fair Value EmployeeStockPurchasePlanExercisePriceAsPercentageOfFairValue	0.95
CY2023Q2	nrg	Employee Stock Purchase Plan Exercise Price As Percentage Of Fair Value EmployeeStockPurchasePlanExercisePriceAsPercentageOfFairValue	0.90
CY2023Q2	nrg	Common Stock Capital Shares Available For Employee Stock Purchase Plan Increase Decrease CommonStockCapitalSharesAvailableForEmployeeStockPurchasePlanIncreaseDecrease	4400000	shares
CY2023Q4	nrg	Common Stock Capital Shares Reserved For Employee Stock Purchase Plan CommonStockCapitalSharesReservedForEmployeeStockPurchasePlan	6702125	shares
CY2023	nrg	Treasury Stock Value Acquired Cost Method Excise Tax TreasuryStockValueAcquiredCostMethodExciseTax	10000000	usd
CY2023Q4	us-gaap	Treasury Stock Shares Retired TreasuryStockSharesRetired	157676142	shares
CY2023Q4	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	5000000000	usd
CY2023Q4	us-gaap	Equity Method Investments EquityMethodInvestments	42000000	usd
CY2023Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	0	usd
CY2022Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	42000000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	-202000000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	1221000000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-256000000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-256000000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1221000000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	1221000000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	2187000000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2187000000	usd
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	228000000	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	228000000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	236000000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	236000000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	245000000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	245000000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.12
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.12
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.17
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.93
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	6000000	shares
CY2023	us-gaap	Revenues Revenues	28823000000	usd
CY2023	nrg	Costofrevenueincludingsellingmarketingandgeneraladministrative Costofrevenueincludingsellingmarketingandgeneraladministrative	28864000000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1127000000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	26000000	usd
CY2023	us-gaap	Costs And Expenses CostsAndExpenses	30017000000	usd
CY2023	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	1578000000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	384000000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	16000000	usd
CY2023	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	102000000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	47000000	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	109000000	usd
CY2023	us-gaap	Interest Expense InterestExpense	667000000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-213000000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11000000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-202000000	usd
CY2023Q4	us-gaap	Equity Method Investments EquityMethodInvestments	42000000	usd
CY2023Q4	nrg	Capital Expenditures CapitalExpenditures	598000000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	5079000000	usd
CY2023Q4	us-gaap	Assets Assets	26038000000	usd
CY2022	us-gaap	Revenues Revenues	31543000000	usd
CY2022	nrg	Costofrevenueincludingsellingmarketingandgeneraladministrative Costofrevenueincludingsellingmarketingandgeneraladministrative	28737000000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	634000000	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	206000000	usd
CY2022	us-gaap	Costs And Expenses CostsAndExpenses	29577000000	usd
CY2022	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	52000000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	2018000000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6000000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	56000000	usd
CY2022	us-gaap	Interest Expense InterestExpense	417000000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1663000000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	442000000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	1221000000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	133000000	usd
CY2022Q4	nrg	Capital Expenditures CapitalExpenditures	367000000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	442000000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	672000000	usd
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.052
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.266
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.235
CY2022Q4	us-gaap	Goodwill Goodwill	1650000000	usd
CY2022Q4	us-gaap	Assets Assets	29146000000	usd
CY2021	us-gaap	Revenues Revenues	26989000000	usd
CY2021	nrg	Costofrevenueincludingsellingmarketingandgeneraladministrative Costofrevenueincludingsellingmarketingandgeneraladministrative	22566000000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	785000000	usd
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	544000000	usd
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	23895000000	usd
CY2021	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	247000000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	3341000000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	17000000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	63000000	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-77000000	usd
CY2021	us-gaap	Interest Expense InterestExpense	485000000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2859000000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	672000000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2187000000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	26000000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3000000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	84000000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	65000000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	48000000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-12000000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3000000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3000000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	98000000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	71000000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	51000000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	50000000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	258000000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	569000000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-61000000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	59000000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	36000000	usd
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-98000000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	54000000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	16000000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-109000000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	371000000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	621000000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11000000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	261000000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1436000000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2759000000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-474000000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	227000000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	100000000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-213000000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1663000000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2859000000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-213000000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1663000000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2859000000	usd
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-45000000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	349000000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	600000000	usd
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-22000000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	69000000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	111000000	usd
CY2023	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-10000000	usd
CY2022	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	7000000	usd
CY2021	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-3000000	usd
CY2023	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	42000000	usd
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CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-29000000	usd
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CY2021	nrg	Effective Income Tax Rate Reconciliation Permanent Differences Amount EffectiveIncomeTaxRateReconciliationPermanentDifferencesAmount	8000000	usd
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CY2022	nrg	Effective Income Tax Rate Reconciliation Reversal Of Uncertain Tax Positions Reserves EffectiveIncomeTaxRateReconciliationReversalOfUncertainTaxPositionsReserves	-8000000	usd
CY2021	nrg	Effective Income Tax Rate Reconciliation Reversal Of Uncertain Tax Positions Reserves EffectiveIncomeTaxRateReconciliationReversalOfUncertainTaxPositionsReserves	10000000	usd
CY2023	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	3000000	usd
CY2022	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	14000000	usd
CY2021	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-10000000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Settlements Foreign IncomeTaxReconciliationTaxSettlementsForeign	-17000000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Settlements Foreign IncomeTaxReconciliationTaxSettlementsForeign	0	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Settlements Foreign IncomeTaxReconciliationTaxSettlementsForeign	0	usd
CY2023	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-5000000	usd
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CY2023	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	0	usd
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CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	1762000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	1717000000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	367000000	usd
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CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	110000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	104000000	usd
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CY2023Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	353000000	usd
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CY2023Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	93000000	usd
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CY2023Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	76000000	usd
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CY2023	nrg	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Right To Receive Common Stock At End Of Deferral Period Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsRightToReceiveCommonStockAtEndOfDeferralPeriodShares	1	shares
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	22000000	usd
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CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	123000000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	34000000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	27000000	usd
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CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	573000000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	836000000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	540000000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	364000000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary	292000000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Due After Five Years UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears	823000000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	3428000000	usd
CY2023Q4	nrg	Unrecorded Unconditional Purchase Obligation Less Than One Year UnrecordedUnconditionalPurchaseObligationLessThanOneYear	978000000	usd
CY2023	nrg	Long Term Purchase Commitment Period Expense LongTermPurchaseCommitmentPeriodExpense	13400000000	usd
CY2022	nrg	Long Term Purchase Commitment Period Expense LongTermPurchaseCommitmentPeriodExpense	19600000000	usd
CY2021	nrg	Long Term Purchase Commitment Period Expense LongTermPurchaseCommitmentPeriodExpense	13400000000	usd
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CY2023Q2	nrg	Number Of Facilities NumberOfFacilities	2	facility
CY2021Q4	nrg	Number Of Facilities NumberOfFacilities	2	facility
CY2023	us-gaap	Interest Paid Net InterestPaidNet	548000000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	383000000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	433000000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	48000000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	66000000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	32000000	usd
CY2023	nrg	Increase Decrease Capital Expenditures Incurred But Not Yet Paid IncreaseDecreaseCapitalExpendituresIncurredButNotYetPaid	0	usd
CY2022	nrg	Increase Decrease Capital Expenditures Incurred But Not Yet Paid IncreaseDecreaseCapitalExpendituresIncurredButNotYetPaid	-68000000	usd
CY2021	nrg	Increase Decrease Capital Expenditures Incurred But Not Yet Paid IncreaseDecreaseCapitalExpendituresIncurredButNotYetPaid	-16000000	usd
CY2023Q4	nrg	Guarantee Maturity Less Than One Year GuaranteeMaturityLessThanOneYear	4568000000	usd
CY2023Q4	nrg	Guarantee Maturity Between One To Three Years GuaranteeMaturityBetweenOneToThreeYears	61000000	usd
CY2023Q4	nrg	Guarantee Maturity Between Three To Five Years GuaranteeMaturityBetweenThreeToFiveYears	22000000	usd
CY2023Q4	nrg	Guarantee Maturity Greater Than Five Years GuaranteeMaturityGreaterThanFiveYears	94000000	usd
CY2023Q4	nrg	Guarantee Obligations Estimated Exposure GuaranteeObligationsEstimatedExposure	4745000000	usd
CY2022Q4	nrg	Guarantee Obligations Estimated Exposure GuaranteeObligationsEstimatedExposure	5635000000	usd

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$NRG
NRG Energy Inc Stock $nrg

2024 Q1 Form 10-K Financial Statement

#000101387124000005 Filed on February 28, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NRG NRG Energy Inc Stock $nrg

2024 Q1 Form 10-K Financial Statement

#000101387124000005 Filed on February 28, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NRG
NRG Energy Inc Stock $nrg