$CNP
CENTERPOINT ENERGY INC Stock $cnp

$cnp Overview Financials Valuation SEC Filings Company Website

2020 Q1 Form 10-Q Financial Statement

#000113031020000044 Filed on May 07, 2020

Income Statement

Concept	2020 Q1	2019 Q1
Revenue	$2.167B	$2.229B
YoY Change	-2.78%	16.09%
Cost Of Revenue	$64.00M	$47.00M
YoY Change	36.17%	-96.31%
Gross Profit	$2.103B	$2.182B
YoY Change	-3.62%	237.25%
Gross Profit Margin	97.05%	97.89%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$282.0M	$300.0M
YoY Change	-6.0%	-4.46%
% of Gross Profit	13.41%	13.75%
Operating Expenses	$1.765B	$2.018B
YoY Change	-12.54%	-28.87%
Operating Profit	$217.0M	$211.0M
YoY Change	2.84%	-22.71%
Interest Expense	-$1.495B	-$146.0M
YoY Change	923.97%	14.96%
% of Operating Profit	-688.94%	-69.19%
Other Income/Expense, Net	-$1.617B	-$54.00M
YoY Change	2894.44%	38.46%
Pretax Income	-$1.400B	$157.0M
YoY Change	-991.72%	-25.94%
Income Tax	-$347.0M	$14.00M
% Of Pretax Income		8.92%
Net Earnings	-$1.199B	$169.0M
YoY Change	-809.47%	2.42%
Net Earnings / Revenue	-55.33%	7.58%
Basic Earnings Per Share	-$2.44	$0.28
Diluted Earnings Per Share	-$2.44	$0.28
COMMON SHARES
Basic Shares Outstanding	502.4M shares	501.5M shares
Diluted Shares Outstanding	502.4M shares	503.9M shares

Balance Sheet

Concept	2020 Q1	2019 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$898.0M	$878.0M
YoY Change	2.28%	-24.51%
Cash & Equivalents	$220.0M	$255.0M
Short-Term Investments	$678.0M	$623.0M
Other Short-Term Assets	$2.087B	$755.0M
YoY Change	176.42%	37.77%
Inventory	$375.0M	$371.0M
Prepaid Expenses
Receivables	$711.0M	$1.415B
Other Receivables	$93.00M	$0.00
Total Short-Term Assets	$4.164B	$3.419B
YoY Change	21.79%	12.14%
LONG-TERM ASSETS
Property, Plant & Equipment	$20.98B	$19.51B
YoY Change	7.51%	47.76%
Goodwill	$4.697B	$5.129B
YoY Change	-8.42%	491.58%
Intangibles		$460.0M
YoY Change
Long-Term Investments	$850.0M	$2.471B
YoY Change	-65.6%	0.16%
Other Assets	$223.0M	$286.0M
YoY Change	-22.03%	47.42%
Total Long-Term Assets	$29.23B	$30.48B
YoY Change	-4.11%	57.45%
TOTAL ASSETS
Total Short-Term Assets	$4.164B	$3.419B
Total Long-Term Assets	$29.23B	$30.48B
Total Assets	$33.40B	$33.90B
YoY Change	-1.5%	51.28%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$739.0M	$1.181B
YoY Change	-37.43%	65.87%
Accrued Expenses	$126.0M	$127.0M
YoY Change	-0.79%	64.94%
Deferred Revenue	$124.0M
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$1.426B	$402.0M
YoY Change	254.73%	-34.42%
Total Short-Term Liabilities	$4.042B	$3.139B
YoY Change	28.77%	19.99%
LONG-TERM LIABILITIES
Long-Term Debt	$13.83B	$13.76B
YoY Change	0.52%	68.29%
Other Long-Term Liabilities	$751.0M	$609.0M
YoY Change	23.32%	68.7%
Total Long-Term Liabilities	$14.58B	$14.37B
YoY Change	1.48%	68.3%
TOTAL LIABILITIES
Total Short-Term Liabilities	$4.042B	$3.139B
Total Long-Term Liabilities	$14.58B	$14.37B
Total Liabilities	$18.62B	$17.51B
YoY Change	6.37%	56.97%
SHAREHOLDERS EQUITY
Retained Earnings	-$761.0M	$518.0M
YoY Change	-246.91%	-26.84%
Common Stock	$5.000M	$5.000M
YoY Change	0.0%	25.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$6.970B	$8.216B
YoY Change
Total Liabilities & Shareholders Equity	$33.40B	$33.90B
YoY Change	-1.5%	51.28%

Cashflow Statement

Concept	2020 Q1	2019 Q1
OPERATING ACTIVITIES
Net Income	-$1.199B	$169.0M
YoY Change	-809.47%	2.42%
Depreciation, Depletion And Amortization	$282.0M	$300.0M
YoY Change	-6.0%	-4.46%
Cash From Operating Activities	$662.0M	$271.0M
YoY Change	144.28%	-44.01%
INVESTING ACTIVITIES
Capital Expenditures	-$664.0M	-$537.0M
YoY Change	23.65%	48.34%
Acquisitions	$0.00	$5.987B
YoY Change	-100.0%
Other Investing Activities	-$3.000M	$15.00M
YoY Change	-120.0%	-1600.0%
Cash From Investing Activities	-$654.0M	-$6.539B
YoY Change	-90.0%	1875.53%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$63.00M	$994.0M
YoY Change	-93.66%	502.42%
Cash From Financing Activities	-$32.00M	$2.345B
YoY Change	-101.36%	-1321.35%
NET CHANGE
Cash From Operating Activities	$662.0M	$271.0M
Cash From Investing Activities	-$654.0M	-$6.539B
Cash From Financing Activities	-$32.00M	$2.345B
Net Change In Cash	-$24.00M	-$3.923B
YoY Change	-99.39%	9958.97%
FREE CASH FLOW
Cash From Operating Activities	$662.0M	$271.0M
Capital Expenditures	-$664.0M	-$537.0M
Free Cash Flow	$1.326B	$808.0M
YoY Change	64.11%	-4.49%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2020Q1	cnp	Accrued Unbilled Revenues Allowancefor Credit Losses Current AccruedUnbilledRevenuesAllowanceforCreditLossesCurrent	3000000	USD
CY2019Q1	cnp	Taxbenefitexpenseon Other Comprehensivelncomelossfromunconsolidatedaffiliates TaxbenefitexpenseonOtherComprehensivelncomelossfromunconsolidatedaffiliates	0	USD
CY2020Q1	cnp	Taxbenefitexpenseon Other Comprehensivelncomelossfromunconsolidatedaffiliates TaxbenefitexpenseonOtherComprehensivelncomelossfromunconsolidatedaffiliates	0	USD
CY2020Q1	dei	Amendment Flag AmendmentFlag	false
CY2020Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2020Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020Q1	dei	Entity Central Index Key EntityCentralIndexKey	0001130310
CY2020Q1	dei	Entity Registrant Name EntityRegistrantName	CENTERPOINT ENERGY INC.
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	21000000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	30000000	USD
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.0000
CY2020Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	0	USD
CY2020Q1	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2020Q1	dei	Document Period End Date DocumentPeriodEndDate	2020-03-31
CY2019Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2900
CY2019Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2020Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	502242061	shares
CY2020Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	502647495	shares
CY2019Q1	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	1000000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	1000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	0	USD
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CY2020Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2020Q1	dei	Document Type DocumentType	10-Q
CY2020Q1	dei	Document Transition Report DocumentTransitionReport	false
CY2020Q1	dei	Entity File Number EntityFileNumber	1-31447
CY2020Q1	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	TX
CY2020Q1	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	74-0694415
CY2020Q1	dei	Entity Address Address Line1 EntityAddressAddressLine1	1111 Louisiana
CY2020Q1	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
CY2020Q1	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2020Q1	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77002
CY2020Q1	dei	City Area Code CityAreaCode	713
CY2020Q1	dei	Local Phone Number LocalPhoneNumber	207-1111
CY2020Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020Q1	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020Q1	dei	Entity Small Business EntitySmallBusiness	false
CY2020Q1	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020Q1	dei	Entity Shell Company EntityShellCompany	false
CY2020Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	502656951	shares
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CY2020Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	185000000	USD
CY2019Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
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CY2020Q1	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	94000000	USD
CY2019Q1	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	58000000	USD
CY2020Q1	us-gaap	Revenues Revenues	2167000000	USD
CY2019Q1	us-gaap	Revenues Revenues	2229000000	USD
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CY2020Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	64000000	USD
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CY2020Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	282000000	USD
CY2019Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	300000000	USD
CY2020Q1	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	136000000	USD
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CY2019Q1	us-gaap	Costs And Expenses CostsAndExpenses	2018000000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	217000000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	211000000	USD
CY2020Q1	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-144000000	USD
CY2019Q1	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	83000000	USD
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CY2019Q1	us-gaap	Interest And Debt Expense InterestAndDebtExpense	121000000	USD
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CY2020Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1475000000	USD
CY2019Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	62000000	USD
CY2020Q1	us-gaap	Interest Income Other InterestIncomeOther	0	USD
CY2019Q1	us-gaap	Interest Income Other InterestIncomeOther	12000000	USD
CY2020Q1	cnp	Interest Incomeon Transitionand System Restoration Bonds InterestIncomeonTransitionandSystemRestorationBonds	1000000	USD
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CY2020Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	13000000	USD
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CY2020Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1617000000	USD
CY2019Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-54000000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1400000000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	157000000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-347000000	USD
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CY2019Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	143000000	USD
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CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	169000000	USD
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CY2019Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	141000000	USD
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CY2020Q1	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	97000000	USD
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CY2019Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	263000000	USD
CY2020Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	93000000	USD
CY2019Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	106000000	USD
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CY2020Q1	us-gaap	Assets Current AssetsCurrent	4164000000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	3937000000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	30830000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	30324000000	USD
CY2020Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	9852000000	USD
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CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	20978000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	20624000000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	4697000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4882000000	USD
CY2020Q1	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2120000000	USD
CY2019Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2117000000	USD
CY2020Q1	us-gaap	Equity Method Investments EquityMethodInvestments	850000000	USD
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CY2019Q4	us-gaap	Cost Method Investments CostMethodInvestments	363000000	USD
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CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent	962000000	USD
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CY2020Q1	cnp	Assets Noncurrent Other Than Property Plant And Equipment AssetsNoncurrentOtherThanPropertyPlantAndEquipment	8253000000	USD
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CY2019Q4	cnp	Indexed Debt Current IndexedDebtCurrent	19000000	USD
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CY2020Q1	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	13120000000	USD
CY2019Q4	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	13498000000	USD
CY2020Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	13830000000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	14244000000	USD
CY2020Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q1	cnp	Cumulative Preferred Stock CumulativePreferredStock		USD
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CY2020Q1	us-gaap	Common Stock Value CommonStockValue	5000000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	5000000	USD
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CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	6970000000	USD
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CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	169000000	USD
CY2020Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	282000000	USD
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CY2019Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9000000	USD
CY2020Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-377000000	USD
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CY2020Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	185000000	USD
CY2019Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020Q1	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	-144000000	USD
CY2019Q1	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	83000000	USD
CY2020Q1	cnp	Indexed Debt Securities Gain Loss IndexedDebtSecuritiesGainLoss	135000000	USD
CY2019Q1	cnp	Indexed Debt Securities Gain Loss IndexedDebtSecuritiesGainLoss	-86000000	USD
CY2020Q1	us-gaap	Inventory Write Down InventoryWriteDown	3000000	USD
CY2019Q1	us-gaap	Inventory Write Down InventoryWriteDown	1000000	USD
CY2020Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1475000000	USD
CY2019Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	62000000	USD
CY2020Q1	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	70000000	USD
CY2019Q1	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	74000000	USD
CY2020Q1	us-gaap	Pension Contributions PensionContributions	2000000	USD
CY2019Q1	us-gaap	Pension Contributions PensionContributions	2000000	USD
CY2020Q1	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-236000000	USD
CY2019Q1	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-138000000	USD
CY2020Q1	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-110000000	USD
CY2019Q1	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-120000000	USD
CY2020Q1	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-13000000	USD
CY2019Q1	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	0	USD
CY2020Q1	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-192000000	USD
CY2019Q1	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-332000000	USD
CY2020Q1	us-gaap	Increase Decrease In Over Under Energy Recovery IncreaseDecreaseInOverUnderEnergyRecovery	-11000000	USD
CY2019Q1	us-gaap	Increase Decrease In Over Under Energy Recovery IncreaseDecreaseInOverUnderEnergyRecovery	-58000000	USD
CY2020Q1	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	53000000	USD
CY2019Q1	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	40000000	USD
CY2020Q1	us-gaap	Increase Decrease In Margin Deposits Outstanding IncreaseDecreaseInMarginDepositsOutstanding	-21000000	USD
CY2019Q1	us-gaap	Increase Decrease In Margin Deposits Outstanding IncreaseDecreaseInMarginDepositsOutstanding	-19000000	USD
CY2020Q1	cnp	Increase Decrease Interest And Taxes Accrued IncreaseDecreaseInterestAndTaxesAccrued	-95000000	USD
CY2019Q1	cnp	Increase Decrease Interest And Taxes Accrued IncreaseDecreaseInterestAndTaxesAccrued	-116000000	USD
CY2020Q1	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	38000000	USD
CY2019Q1	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	3000000	USD
CY2020Q1	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	5000000	USD
CY2019Q1	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-16000000	USD
CY2020Q1	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-37000000	USD
CY2019Q1	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-101000000	USD
CY2020Q1	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-19000000	USD
CY2019Q1	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-58000000	USD
CY2020Q1	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	1000000	USD
CY2019Q1	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-39000000	USD
CY2020Q1	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	3000000	USD
CY2019Q1	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-5000000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	662000000	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	271000000	USD
CY2020Q1	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	664000000	USD
CY2019Q1	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	537000000	USD
CY2020Q1	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019Q1	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	5987000000	USD
CY2020Q1	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	7000000	USD
CY2019Q1	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	0	USD
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CY2019Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	15000000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-654000000	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6539000000	USD
CY2020Q1	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-828000000	USD
CY2019Q1	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	2692000000	USD
CY2020Q1	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2019Q1	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	721000000	USD
CY2020Q1	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	63000000	USD
CY2019Q1	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	994000000	USD
CY2020Q1	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	1050000000	USD
CY2019Q1	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	135000000	USD
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CY2019Q1	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	8000000	USD
CY2020Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	145000000	USD
CY2019Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	144000000	USD
CY2020Q1	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	42000000	USD
CY2019Q1	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	43000000	USD
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CY2019Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-14000000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-32000000	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2345000000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-24000000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-3923000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	271000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4278000000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	247000000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	355000000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	6970000000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	8216000000	USD
CY2020Q1	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<span style="font-family:inherit;font-size:10pt;font-weight:bold;text-transform:default;">New Accounting Pronouncements</span><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The following table provides an overview of certain recently adopted or issued accounting pronouncements applicable to all the Registrants, unless otherwise noted.</span><span style="font-family:inherit;font-size:10pt;font-weight:bold;"> </span></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="7"/></tr><tr><td style="width:19%;"/><td style="width:1%;"/><td style="width:32%;"/><td style="width:1%;"/><td style="width:14%;"/><td style="width:1%;"/><td style="width:32%;"/></tr><tr><td colspan="7" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Recently Adopted Accounting Standards</span></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">ASU Number and Name</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">Description</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">Date of Adoption</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">Financial Statement Impact</span></div><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">upon Adoption</span></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">ASU 2016-13- Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">This standard, including standards amending this standard, requires a new model called CECL to estimate credit losses for (1) financial assets subject to credit losses and measured at amortized cost and (2) certain off-balance sheet credit exposures. Upon initial recognition of the exposure, the CECL model requires an entity to estimate the credit losses expected over the life of an exposure based on historical information, current information and reasonable and supportable forecasts, including estimates of prepayments. <br/></span><span style="font-family:inherit;font-size:8pt;font-style:italic;font-weight:bold;">Transition method:</span><span style="font-family:inherit;font-size:8pt;font-style:italic;"> </span><span style="font-family:inherit;font-size:8pt;">modified retrospective</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">January 1, 2020</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">The Registrants adopted the standard and recognized a cumulative-effect adjustment of the transition to opening retained earnings and allowance for doubtful accounts with no impact on results of operations and cash flows. See Note 4 for more information.</span></div><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;"><br/></span></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">ASU 2018-13- Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">This standard eliminates, modifies and adds certain disclosure requirements for fair value measurements.<br/></span><span style="font-family:inherit;font-size:8pt;font-style:italic;font-weight:bold;">Transition method:</span><span style="font-family:inherit;font-size:8pt;"> prospective for additions and one modification and retrospective for all other amendments</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">Adoption of eliminations and modifications as of September 30, 2018 and additions as of January 1, 2020</span></div><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">The adoption of this standard did not impact the Registrants’ financial position, results of operations or cash flows. Note 8 reflects the disclosures modified and added upon adoption.</span></div><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;"><br/></span></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">Accounting Standards Update (ASU) No. 2019-12: Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes </span></div><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">This standard simplifies accounting for income taxes by eliminating certain exceptions to the guidance for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. It also simplifies aspects of the accounting for franchise taxes that are partially based on income and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill.</span></div><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-style:italic;font-weight:bold;">Transition method:</span><span style="font-family:inherit;font-size:8pt;"> prospective for all amendments that apply to the Registrants</span></div><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">January 1, 2020</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">Upon adoption, the Registrants are not required to apply the intraperiod tax allocation exception when there is a current-period loss from continuing operations. Accordingly, CenterPoint Energy determined the tax effect of income from continuing operations without considering the tax effects of items that are not included in continuing operations (i.e., discontinued operations). Additionally, CenterPoint Energy is no longer required to limit the year-to-date tax benefit recognized when the year-to-date benefit exceeds the anticipated full year benefit.</span></div><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;"><br/></span></div><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;"><br/></span></div><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;"><br/></span></div></td></tr></table></div></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Management believes that other recently adopted or issued accounting standards that are not yet effective will not have a material impact on the Registrants’ financial position, results of operations or cash flows upon adoption.</span></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>
CY2020Q1	us-gaap	Deferred Tax Liabilities Parents Basis In Discontinued Operation DeferredTaxLiabilitiesParentsBasisInDiscontinuedOperation	125000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Accounts Notes And Loans Receivable Net DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet	571000000	USD
CY2020Q1	cnp	Disposal Group Including Discontinued Operation Accrued Unbilled Revenues DisposalGroupIncludingDiscontinuedOperationAccruedUnbilledRevenues	59000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Inventory Current DisposalGroupIncludingDiscontinuedOperationInventoryCurrent	52000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment Current DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent	342000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Goodwill Current DisposalGroupIncludingDiscontinuedOperationGoodwillCurrent	138000000	USD
CY2020Q1	cnp	Disposal Group Including Discontinued Operation Materialsand Supplies DisposalGroupIncludingDiscontinuedOperationMaterialsandSupplies	6000000	USD
CY2020Q1	cnp	Disposal Group Including Discontinued Operation Nontradingderivativeassets DisposalGroupIncludingDiscontinuedOperationNontradingderivativeassets	213000000	USD
CY2020Q1	cnp	Lossonassetsheldforsale Lossonassetsheldforsale	70000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Other Current Assets DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets	336000000	USD
CY2020Q1	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	1647000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Accounts Payable DisposalGroupIncludingDiscontinuedOperationAccountsPayable	252000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Accrued Income Tax Payable DisposalGroupIncludingDiscontinuedOperationAccruedIncomeTaxPayable	2000000	USD
CY2020Q1	cnp	Disposal Group Discontinued Operation Nontradingderivativeliabilities DisposalGroupDiscontinuedOperationNontradingderivativeliabilities	36000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Pension Plan Benefit Obligation Current DisposalGroupIncludingDiscontinuedOperationPensionPlanBenefitObligationCurrent	4000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Other Current Liabilities DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities	89000000	USD
CY2020Q1	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	383000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Accounts Notes And Loans Receivable Net DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet	637000000	USD
CY2019Q4	cnp	Disposal Group Including Discontinued Operation Accrued Unbilled Revenues DisposalGroupIncludingDiscontinuedOperationAccruedUnbilledRevenues	117000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Inventory Current DisposalGroupIncludingDiscontinuedOperationInventoryCurrent	67000000	USD
CY2019Q4	cnp	Disposal Group Including Discontinued Operation Materialsand Supplies DisposalGroupIncludingDiscontinuedOperationMaterialsandSupplies	6000000	USD
CY2019Q4	cnp	Disposal Group Including Discontinued Operation Nontradingderivativeassets DisposalGroupIncludingDiscontinuedOperationNontradingderivativeassets	136000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Other Current Assets DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets	39000000	USD
CY2019Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	1002000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment Noncurrent DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent	321000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Goodwill Noncurrent DisposalGroupIncludingDiscontinuedOperationGoodwillNoncurrent	282000000	USD
CY2019Q4	cnp	Disposal Group Including Discontinued Operation Nontradingderivativeassetsnoncurrent DisposalGroupIncludingDiscontinuedOperationNontradingderivativeassetsnoncurrent	58000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Other Noncurrent Assets DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets	301000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent	962000000	USD
CY2019Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	1964000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Accounts Payable DisposalGroupIncludingDiscontinuedOperationAccountsPayable	344000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Accrued Income Tax Payable DisposalGroupIncludingDiscontinuedOperationAccruedIncomeTaxPayable	2000000	USD
CY2019Q4	cnp	Disposal Group Discontinued Operation Nontradingderivativeliabilities DisposalGroupDiscontinuedOperationNontradingderivativeliabilities	44000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Other Current Liabilities DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities	65000000	USD
CY2019Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	455000000	USD
CY2019Q4	cnp	Disposal Group Including Discontinued Operation Nontradingderivativeliabilitiesnoncurrent DisposalGroupIncludingDiscontinuedOperationNontradingderivativeliabilitiesnoncurrent	14000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Pension Plan Benefit Obligation Noncurrent DisposalGroupIncludingDiscontinuedOperationPensionPlanBenefitObligationNoncurrent	4000000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Other Noncurrent Liabilities DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities	25000000	USD
CY2019Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	43000000	USD
CY2019Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	498000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	1108000000	USD
CY2019Q1	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	1388000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Costs Of Goods Sold DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold	852000000	USD
CY2019Q1	us-gaap	Disposal Group Including Discontinued Operation Costs Of Goods Sold DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold	1228000000	USD
CY2020Q1	cnp	Disposal Group Including Discontinued Operation Operationand Maintenance Expense DisposalGroupIncludingDiscontinuedOperationOperationandMaintenanceExpense	183000000	USD
CY2019Q1	cnp	Disposal Group Including Discontinued Operation Operationand Maintenance Expense DisposalGroupIncludingDiscontinuedOperationOperationandMaintenanceExpense	113000000	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Depreciation And Amortization DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization	0	USD
CY2019Q1	us-gaap	Disposal Group Including Discontinued Operation Depreciation And Amortization DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization	13000000	USD
CY2020Q1	cnp	Disposal Group Including Discontinued Operation Taxes Otherthan Income Taxes DisposalGroupIncludingDiscontinuedOperationTaxesOtherthanIncomeTaxes	2000000	USD
CY2019Q1	cnp	Disposal Group Including Discontinued Operation Taxes Otherthan Income Taxes DisposalGroupIncludingDiscontinuedOperationTaxesOtherthanIncomeTaxes	0	USD
CY2020Q1	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	1037000000	USD
CY2019Q1	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	1354000000	USD
CY2020Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	71000000	USD
CY2019Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	34000000	USD
CY2020Q1	cnp	Lossfromreclassificationtoheldforsaleincludingimpairment Lossfromreclassificationtoheldforsaleincludingimpairment	234000000	USD
CY2020Q1	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-17000000	USD
CY2019Q1	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	8000000	USD
CY2020Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-146000000	USD
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	26000000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2141000000	USD
CY2020Q1	cnp	Other Revenue Excluding Assessed Tax OtherRevenueExcludingAssessedTax	26000000	USD
CY2020Q1	us-gaap	Revenues Revenues	2167000000	USD
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2227000000	USD
CY2019Q1	cnp	Other Revenue Excluding Assessed Tax OtherRevenueExcludingAssessedTax	2000000	USD
CY2019Q1	us-gaap	Revenues Revenues	2229000000	USD
CY2020Q1	us-gaap	Lease Income LeaseIncome	1000000	USD
CY2019Q1	us-gaap	Lease Income LeaseIncome	2000000	USD
CY2019Q4	cnp	Accounts Receivablefor Contractswith Customers AccountsReceivableforContractswithCustomers	566000000	USD
CY2019Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	469000000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	6000000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	30000000	USD
CY2020Q1	cnp	Accounts Receivablefor Contractswith Customers AccountsReceivableforContractswithCustomers	612000000	USD
CY2020Q1	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	320000000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	13000000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	23000000	USD
CY2020Q1	cnp	Increase Decreasein Accounts Receivableon Contractswith Customers IncreaseDecreaseinAccountsReceivableonContractswithCustomers	46000000	USD
CY2020Q1	cnp	Increase Decrease In Contract With Customer Asset Other Accrued Unbilled Receivables IncreaseDecreaseInContractWithCustomerAssetOtherAccruedUnbilledReceivables	-149000000	USD
CY2020Q1	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	7000000	USD
CY2020Q1	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-7000000	USD
CY2020Q1	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	25000000	USD
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	218000000	USD
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	569000000	USD
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	787000000	USD
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	218000000	USD
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	569000000	USD
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	787000000	USD
CY2020Q1	cnp	Amount Of Allowed Equity Return Not Recognized In Period AmountOfAllowedEquityReturnNotRecognizedInPeriod	162000000	USD
CY2020Q1	cnp	Amount Of Allowed Equity Return Recognized In Period AmountOfAllowedEquityReturnRecognizedInPeriod	6000000	USD
CY2019Q1	cnp	Amount Of Allowed Equity Return Recognized In Period AmountOfAllowedEquityReturnRecognizedInPeriod	11000000	USD
CY2020Q1	cnp	Weather Hedges Term WeatherHedgesTerm	P10Y
CY2020Q1	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	346000000	USD
CY2020Q1	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	1026000000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	292000000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	1144000000	USD
CY2020Q1	us-gaap	Derivative Assets DerivativeAssets	45000000	USD
CY2020Q1	us-gaap	Deferred Gain Loss On Discontinuation Of Fair Value Hedge DeferredGainLossOnDiscontinuationOfFairValueHedge	-20000000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	47000000	USD
CY2019Q4	us-gaap	Deferred Gain Loss On Discontinuation Of Fair Value Hedge DeferredGainLossOnDiscontinuationOfFairValueHedge	-13000000	USD
CY2020Q1	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	210000000	USD
CY2019Q1	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-82000000	USD
CY2020Q1	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	1000000	USD
CY2019Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	1000000	USD
CY2020Q1	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2019Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2020Q1	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	1000000	USD
CY2019Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	1000000	USD
CY2020Q1	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	133000000	USD
CY2020Q1	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	942000000	USD
CY2019Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	98000000	USD
CY2019Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1068000000	USD
CY2020Q1	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	183000000	USD
CY2020Q1	us-gaap	Financial Liabilities Fair Value Disclosure FinancialLiabilitiesFairValueDisclosure	864000000	USD
CY2019Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	161000000	USD
CY2019Q4	us-gaap	Financial Liabilities Fair Value Disclosure FinancialLiabilitiesFairValueDisclosure	996000000	USD
CY2019Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	18000000	USD
CY2018Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	30000000	USD
CY2020Q1	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Earnings FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings	15000000	USD
CY2019Q1	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Earnings FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings	-1000000	USD
CY2020Q1	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Settlements FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements	10000000	USD
CY2019Q1	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Settlements FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements	15000000	USD
CY2020Q1	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Into Level3 FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersIntoLevel3	0	USD
CY2019Q1	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Into Level3 FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersIntoLevel3	1000000	USD
CY2020Q1	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Out Of Level3 FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersOutOfLevel3	0	USD
CY2019Q1	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Out Of Level3 FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersOutOfLevel3	2000000	USD
CY2020Q1	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	23000000	USD
CY2019Q1	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	13000000	USD
CY2020Q1	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	14000000	USD
CY2019Q1	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-2000000	USD
CY2020Q1	us-gaap	Equity Method Investments EquityMethodInvestments	850000000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	2408000000	USD
CY2020Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1475000000	USD
CY2019Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	62000000	USD
CY2020Q1	us-gaap	Cost Method Investments CostMethodInvestments	363000000	USD
CY2019Q4	us-gaap	Cost Method Investments CostMethodInvestments	363000000	USD
CY2020Q1	cnp	Saleof Units Percentage Trigger Rightof First Refusal SaleofUnitsPercentageTriggerRightofFirstRefusal	0.05
CY2020Q1	cnp	Totaldistributionsreceivedfrom Enable TotaldistributionsreceivedfromEnable	86000000	USD
CY2019Q1	cnp	Totaldistributionsreceivedfrom Enable TotaldistributionsreceivedfromEnable	83000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4882000000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	4697000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	68000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	12000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	56000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	68000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	10000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	58000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	6000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	6000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	6000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	6000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	5000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	5000000	USD
CY2020Q1	cnp	Target Annual Yield On Reference Shares TargetAnnualYieldOnReferenceShares	0.02309
CY2020Q1	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	5100000000	USD
CY2020Q1	cnp	Numberofdaysuntilcommercialpapermaturity Numberofdaysuntilcommercialpapermaturity	60	day
CY2020Q1	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	8000000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-1000000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	5000000	USD
CY2020Q1	us-gaap	Purchase Obligation Future Minimum Payments Remainder Of Fiscal Year PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear	464000000	USD
CY2020Q1	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	601000000	USD
CY2020Q1	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	409000000	USD
CY2020Q1	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	327000000	USD
CY2020Q1	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	263000000	USD
CY2020Q1	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	208000000	USD
CY2020Q1	us-gaap	Purchase Obligation Due After Fifth Year PurchaseObligationDueAfterFifthYear	1622000000	USD
CY2020Q1	cnp	Numberofsuretybondobligationsoutstanding Numberofsuretybondobligationsoutstanding	62
CY2020Q1	cnp	Performanceguaranteeobligationsoutstandingfaceamount Performanceguaranteeobligationsoutstandingfaceamount	563000000	USD
CY2020Q1	cnp	Percentageofworkyettobecompletedonprojectswithopensuretybonds Percentageofworkyettobecompletedonprojectswithopensuretybonds	0.34
CY2020Q1	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	513000000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-1053000000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	143000000	USD
CY2020Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	29000000	USD
CY2019Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	29000000	USD
CY2020Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-146000000	USD
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	26000000	USD
CY2020Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	502388000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	501521000	shares
CY2020Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	502388000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	503944000	shares
CY2020Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-2.15
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.23
CY2020Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	-0.29
CY2019Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0.05
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.44
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.28
CY2020Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-2.15
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.23
CY2020Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	-0.29
CY2019Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0.05
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.44
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.28
CY2020Q1	us-gaap	Revenues Revenues	2167000000	USD
CY2020Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1475000000	USD
CY2020Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	282000000	USD
CY2020Q1	us-gaap	Interest Income Other InterestIncomeOther	0	USD
CY2020Q1	us-gaap	Interest Expense Other InterestExpenseOther	139000000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-347000000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1053000000	USD
CY2020Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-146000000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-1199000000	USD
CY2019Q1	us-gaap	Revenues Revenues	2229000000	USD
CY2019Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	62000000	USD
CY2019Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	300000000	USD
CY2019Q1	us-gaap	Interest Income Other InterestIncomeOther	12000000	USD
CY2019Q1	us-gaap	Interest Expense Other InterestExpenseOther	121000000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14000000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	143000000	USD
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	26000000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	169000000	USD
CY2020Q1	cnp	Total Assets Classifiedas Held For Use Currentand Noncurrent TotalAssetsClassifiedasHeldForUseCurrentandNoncurrent	31748000000	USD
CY2019Q4	cnp	Total Assets Classifiedas Held For Use Currentand Noncurrent TotalAssetsClassifiedasHeldForUseCurrentandNoncurrent	33565000000	USD
CY2020Q1	cnp	Total Assets Classifiedas Held For Sale Currentand Noncurrent TotalAssetsClassifiedasHeldForSaleCurrentandNoncurrent	1647000000	USD
CY2019Q4	cnp	Total Assets Classifiedas Held For Sale Currentand Noncurrent TotalAssetsClassifiedasHeldForSaleCurrentandNoncurrent	1964000000	USD
CY2020Q1	us-gaap	Assets Assets	33395000000	USD
CY2019Q4	us-gaap	Assets Assets	35529000000	USD
CY2020Q1	us-gaap	Interest Paid Net InterestPaidNet	148000000	USD
CY2019Q1	us-gaap	Interest Paid Net InterestPaidNet	154000000	USD
CY2020Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	0	USD
CY2019Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-4000000	USD
CY2020Q1	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	200000000	USD
CY2019Q1	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	166000000	USD
CY2020Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	14000000	USD
CY2019Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	29000000	USD
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	220000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	241000000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	247000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	271000000	USD
CY2020Q1	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	29000000	USD
CY2019Q1	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	29000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	98000000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	108000000	USD
CY2020Q1	cnp	Othercomprehensivelossfromunconsolidatedaffiliatesnetoftax Othercomprehensivelossfromunconsolidatedaffiliatesnetoftax	3000000	USD
CY2019Q1	cnp	Othercomprehensivelossfromunconsolidatedaffiliatesnetoftax Othercomprehensivelossfromunconsolidatedaffiliatesnetoftax	0	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-2000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-2000000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	0	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	1000000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	1000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	1000000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1000000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	100000000	USD
CY2019Q1	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	107000000	USD

Files In Submission

Name	View Source	Status
0001130310-20-000044-index-headers.html	Edgar Link	pending
0001130310-20-000044-index.html	Edgar Link	pending
0001130310-20-000044.txt	Edgar Link	pending
0001130310-20-000044-xbrl.zip	Edgar Link	pending
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ceheexhibit32123312020.htm	Edgar Link	pending
ceheexhibit32223312020.htm	Edgar Link	pending
cercexhibit31133312020.htm	Edgar Link	pending
cercexhibit31233312020.htm	Edgar Link	pending
cercexhibit32133312020.htm	Edgar Link	pending
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cnpexhibit32213312020.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$CNP
CENTERPOINT ENERGY INC Stock $cnp

2020 Q1 Form 10-Q Financial Statement

#000113031020000044 Filed on May 07, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CNP CENTERPOINT ENERGY INC Stock $cnp

2020 Q1 Form 10-Q Financial Statement

#000113031020000044 Filed on May 07, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CNP
CENTERPOINT ENERGY INC Stock $cnp