2021 Q4 Form 10-Q Financial Statement

#000113031021000051 Filed on November 04, 2021

View on sec.gov

Income Statement

Concept 2021 Q4 2021 Q3 2020 Q3
Revenue $2.314B $1.749B $1.622B
YoY Change 12.66% 7.83% -2.17%
Cost Of Revenue $61.00M $63.00M
YoY Change -3.17% -21.25%
Gross Profit $1.688B $1.559B
YoY Change 8.27% -1.2%
Gross Profit Margin 96.51% 96.12%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $329.0M $353.0M $306.0M
YoY Change 7.87% 15.36% -3.16%
% of Gross Profit 20.91% 19.63%
Operating Expenses $1.978B $1.471B $1.320B
YoY Change 11.81% 11.44% 1.46%
Operating Profit $278.0M $302.0M
YoY Change -7.95% -15.41%
Interest Expense -$289.0M -$120.0M -$195.0M
YoY Change 514.89% -38.46% 200.0%
% of Operating Profit -43.17% -64.57%
Other Income/Expense, Net $38.00M -$95.00M -$118.0M
YoY Change 137.5% -19.49% 96.67%
Pretax Income $85.00M $183.0M $184.0M
YoY Change -66.54% -0.54% -38.05%
Income Tax $47.00M $33.00M -$15.00M
% Of Pretax Income 55.29% 18.03% -8.15%
Net Earnings $654.0M $218.0M $121.0M
YoY Change 227.0% 80.17% -55.19%
Net Earnings / Revenue 28.26% 12.46% 7.46%
Basic Earnings Per Share $0.32 $0.13
Diluted Earnings Per Share $1.027M $0.32 $0.13
COMMON SHARES
Basic Shares Outstanding 628.9M shares 604.6M shares 544.8M shares
Diluted Shares Outstanding 609.4M shares 548.2M shares

Balance Sheet

Concept 2021 Q4 2021 Q3 2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments $1.669B $1.044B $1.021B
YoY Change 63.95% 2.25% 1.59%
Cash & Equivalents $230.0M $133.0M $185.0M
Short-Term Investments $1.439B $911.0M $836.0M
Other Short-Term Assets $4.387B $5.407B $397.0M
YoY Change 581.21% 1261.96% -41.53%
Inventory $608.0M $593.0M $534.0M
Prepaid Expenses
Receivables $690.0M $650.0M $731.0M
Other Receivables $1.000M $14.00M $102.0M
Total Short-Term Assets $7.355B $7.708B $2.785B
YoY Change 151.88% 176.77% -18.47%
LONG-TERM ASSETS
Property, Plant & Equipment $23.48B $22.61B $21.74B
YoY Change 5.02% 4.04% 6.92%
Goodwill $4.294B $4.294B $4.697B
YoY Change -8.58% -8.58% -9.31%
Intangibles
YoY Change
Long-Term Investments $0.00 $0.00 $749.0M
YoY Change -100.0% -100.0% -69.66%
Other Assets $220.0M $228.0M $226.0M
YoY Change -13.04% 0.88% -17.22%
Total Long-Term Assets $30.32B $29.45B $29.92B
YoY Change -0.74% -1.56% -4.18%
TOTAL ASSETS
Total Short-Term Assets $7.355B $7.708B $2.785B
Total Long-Term Assets $30.32B $29.45B $29.92B
Total Assets $37.68B $37.16B $32.71B
YoY Change 12.57% 13.62% -5.59%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $1.196B $905.0M $658.0M
YoY Change 40.21% 37.54% -25.9%
Accrued Expenses $136.0M $126.0M $117.0M
YoY Change -6.21% 7.69% -3.31%
Deferred Revenue $111.0M $111.0M $120.0M
YoY Change -6.72% -7.5%
Short-Term Debt $7.000M $7.000M $37.00M
YoY Change -70.83% -81.08%
Long-Term Debt Due $538.0M $1.091B $1.338B
YoY Change -71.61% -18.46% 54.15%
Total Short-Term Liabilities $4.287B $4.507B $3.830B
YoY Change -11.15% 17.68% 11.53%
LONG-TERM LIABILITIES
Long-Term Debt $15.56B $15.39B $11.95B
YoY Change 35.04% 28.86% -14.76%
Other Long-Term Liabilities $836.0M $926.0M $789.0M
YoY Change -17.96% 17.36% 17.41%
Total Long-Term Liabilities $16.39B $16.32B $12.74B
YoY Change 30.73% 28.15% -13.28%
TOTAL LIABILITIES
Total Short-Term Liabilities $4.287B $4.507B $3.830B
Total Long-Term Liabilities $16.39B $16.32B $12.74B
Total Liabilities $20.68B $20.83B $16.57B
YoY Change 19.1% 25.73% -8.58%
SHAREHOLDERS EQUITY
Retained Earnings $154.0M -$368.0M -$796.0M
YoY Change -118.22% -53.77% -225.16%
Common Stock $6.000M $6.000M $5.000M
YoY Change 0.0% 20.0% 0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $9.415B $8.865B $8.388B
YoY Change
Total Liabilities & Shareholders Equity $37.68B $37.16B $32.71B
YoY Change 12.57% 13.62% -5.59%

Cashflow Statement

Concept 2021 Q4 2021 Q3 2020 Q3
OPERATING ACTIVITIES
Net Income $654.0M $218.0M $121.0M
YoY Change 227.0% 80.17% -55.19%
Depreciation, Depletion And Amortization $329.0M $353.0M $306.0M
YoY Change 7.87% 15.36% -3.16%
Cash From Operating Activities $573.0M $525.0M $258.0M
YoY Change 3.06% 103.49% -49.61%
INVESTING ACTIVITIES
Capital Expenditures -$1.016B -$765.0M -$611.0M
YoY Change 43.71% 25.2% -6.43%
Acquisitions
YoY Change
Other Investing Activities $1.269B $37.00M $71.00M
YoY Change 915.2% -47.89% 162.96%
Cash From Investing Activities $253.0M -$728.0M -$540.0M
YoY Change -143.47% 34.81% -13.74%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities -728.0M 202.0M 296.0M
YoY Change 4753.33% -31.76% 274.68%
NET CHANGE
Cash From Operating Activities 573.0M 525.0M 258.0M
Cash From Investing Activities 253.0M -728.0M -540.0M
Cash From Financing Activities -728.0M 202.0M 296.0M
Net Change In Cash 98.00M -1.000M 14.00M
YoY Change -339.02% -107.14% -140.0%
FREE CASH FLOW
Cash From Operating Activities $573.0M $525.0M $258.0M
Capital Expenditures -$1.016B -$765.0M -$611.0M
Free Cash Flow $1.589B $1.290B $869.0M
YoY Change 25.81% 48.45% -25.41%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
dei Entity Central Index Key
EntityCentralIndexKey
0001130310
dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2021
dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
Q3
dei Amendment Flag
AmendmentFlag
false
CY2019 us-gaap Accounting Standards Update Extensible List
AccountingStandardsUpdateExtensibleList
http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member
CY2021Q3 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2021Q3 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2021Q3 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2021Q3 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
dei Document Type
DocumentType
10-Q
dei Document Quarterly Report
DocumentQuarterlyReport
true
dei Document Period End Date
DocumentPeriodEndDate
2021-09-30
dei Document Transition Report
DocumentTransitionReport
false
dei Entity File Number
EntityFileNumber
1-31447
dei Entity Registrant Name
EntityRegistrantName
CenterPoint Energy, Inc.
dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
TX
dei Entity Tax Identification Number
EntityTaxIdentificationNumber
74-0694415
dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
dei Entity Address Address Line1
EntityAddressAddressLine1
1111 Louisiana
dei Entity Address City Or Town
EntityAddressCityOrTown
Houston
dei Entity Address State Or Province
EntityAddressStateOrProvince
TX
dei Entity Address Postal Zip Code
EntityAddressPostalZipCode
77002
dei City Area Code
CityAreaCode
713
dei Local Phone Number
LocalPhoneNumber
207-1111
dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
dei Entity Small Business
EntitySmallBusiness
false
dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
dei Entity Shell Company
EntityShellCompany
false
CY2021Q4 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
628865734 shares
CY2021Q3 us-gaap Regulated Operating Revenue
RegulatedOperatingRevenue
1661000000 USD
CY2020Q3 us-gaap Regulated Operating Revenue
RegulatedOperatingRevenue
1538000000 USD
us-gaap Regulated Operating Revenue
RegulatedOperatingRevenue
5797000000 USD
us-gaap Regulated Operating Revenue
RegulatedOperatingRevenue
5087000000 USD
CY2021Q3 us-gaap Unregulated Operating Revenue
UnregulatedOperatingRevenue
88000000 USD
CY2020Q3 us-gaap Unregulated Operating Revenue
UnregulatedOperatingRevenue
84000000 USD
us-gaap Unregulated Operating Revenue
UnregulatedOperatingRevenue
241000000 USD
us-gaap Unregulated Operating Revenue
UnregulatedOperatingRevenue
277000000 USD
CY2021Q3 us-gaap Revenues
Revenues
1749000000 USD
CY2020Q3 us-gaap Revenues
Revenues
1622000000 USD
us-gaap Revenues
Revenues
6038000000 USD
us-gaap Revenues
Revenues
5364000000 USD
CY2021Q3 us-gaap Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
223000000 USD
CY2020Q3 us-gaap Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
170000000 USD
us-gaap Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
1416000000 USD
us-gaap Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
981000000 USD
CY2021Q3 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
61000000 USD
CY2020Q3 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
63000000 USD
us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
159000000 USD
us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
196000000 USD
CY2021Q3 us-gaap Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
709000000 USD
CY2020Q3 us-gaap Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
659000000 USD
us-gaap Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
2055000000 USD
us-gaap Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
1976000000 USD
CY2021Q3 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
353000000 USD
CY2020Q3 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
306000000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
987000000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
885000000 USD
CY2021Q3 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
125000000 USD
CY2020Q3 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
122000000 USD
us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
394000000 USD
us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
387000000 USD
CY2021Q3 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
CY2020Q3 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
185000000 USD
CY2021Q3 us-gaap Costs And Expenses
CostsAndExpenses
1471000000 USD
CY2020Q3 us-gaap Costs And Expenses
CostsAndExpenses
1320000000 USD
us-gaap Costs And Expenses
CostsAndExpenses
5011000000 USD
us-gaap Costs And Expenses
CostsAndExpenses
4610000000 USD
CY2021Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
278000000 USD
CY2020Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
302000000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
1027000000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
754000000 USD
CY2021Q3 us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
-12000000 USD
CY2020Q3 us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
83000000 USD
us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
40000000 USD
us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
14000000 USD
CY2021Q3 cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
11000000 USD
CY2020Q3 cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
-84000000 USD
cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
-40000000 USD
cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
-25000000 USD
CY2021Q3 us-gaap Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
8000000 USD
CY2020Q3 us-gaap Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
0 USD
us-gaap Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
8000000 USD
us-gaap Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
0 USD
CY2021Q3 us-gaap Interest And Debt Expense
InterestAndDebtExpense
114000000 USD
CY2020Q3 us-gaap Interest And Debt Expense
InterestAndDebtExpense
121000000 USD
us-gaap Interest And Debt Expense
InterestAndDebtExpense
346000000 USD
us-gaap Interest And Debt Expense
InterestAndDebtExpense
388000000 USD
CY2021Q3 cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
5000000 USD
CY2020Q3 cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
7000000 USD
cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
16000000 USD
cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
22000000 USD
CY2021Q3 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
17000000 USD
CY2020Q3 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
11000000 USD
us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
20000000 USD
us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
47000000 USD
CY2021Q3 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-95000000 USD
CY2020Q3 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-118000000 USD
us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-334000000 USD
us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-374000000 USD
CY2021Q3 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
183000000 USD
CY2020Q3 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
184000000 USD
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
693000000 USD
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
380000000 USD
CY2021Q3 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
33000000 USD
CY2020Q3 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-15000000 USD
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
63000000 USD
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
33000000 USD
CY2021Q3 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
150000000 USD
CY2020Q3 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
199000000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
630000000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
347000000 USD
CY2021Q3 us-gaap Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
15000000 USD
CY2020Q3 us-gaap Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
5000000 USD
us-gaap Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
56000000 USD
us-gaap Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
-340000000 USD
CY2021Q3 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
68000000 USD
CY2020Q3 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-78000000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
202000000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-1320000000 USD
CY2021Q3 us-gaap Net Income Loss
NetIncomeLoss
218000000 USD
CY2020Q3 us-gaap Net Income Loss
NetIncomeLoss
121000000 USD
us-gaap Net Income Loss
NetIncomeLoss
832000000 USD
us-gaap Net Income Loss
NetIncomeLoss
-973000000 USD
CY2021Q3 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
23000000 USD
CY2020Q3 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
52000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
82000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
127000000 USD
CY2021Q3 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
195000000 USD
CY2020Q3 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
69000000 USD
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
750000000 USD
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
-1100000000 USD
CY2021Q3 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.21
CY2020Q3 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.27
us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.94
us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.42
CY2021Q3 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
0.11
CY2020Q3 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
-0.14
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
0.35
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
-2.52
CY2021Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.32
CY2020Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.13
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.29
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-2.10
CY2021Q3 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.21
CY2020Q3 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.27
us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.91
us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.42
CY2021Q3 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
0.11
CY2020Q3 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
-0.14
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
0.34
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
-2.52
CY2021Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.32
CY2020Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.13
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.25
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-2.10
CY2021Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
605000000 shares
CY2020Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
545000000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
581000000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
525000000 shares
CY2021Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
609000000 shares
CY2020Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
548000000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
601000000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
525000000 shares
CY2021Q3 us-gaap Net Income Loss
NetIncomeLoss
218000000 USD
CY2020Q3 us-gaap Net Income Loss
NetIncomeLoss
121000000 USD
us-gaap Net Income Loss
NetIncomeLoss
832000000 USD
us-gaap Net Income Loss
NetIncomeLoss
-973000000 USD
CY2021Q3 us-gaap Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
1000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
1000000 USD
us-gaap Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
2000000 USD
us-gaap Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
3000000 USD
CY2021Q3 us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
-4000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
-1000000 USD
us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
-7000000 USD
us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
-3000000 USD
CY2021Q3 cnp Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Realized In Net Income Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossRealizedInNetIncomeReclassificationTax
0 USD
CY2020Q3 cnp Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Realized In Net Income Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossRealizedInNetIncomeReclassificationTax
0 USD
cnp Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Realized In Net Income Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossRealizedInNetIncomeReclassificationTax
0 USD
cnp Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Realized In Net Income Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossRealizedInNetIncomeReclassificationTax
0 USD
CY2021Q3 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
-1000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
0 USD
us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
-1000000 USD
us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
0 USD
CY2021Q3 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
0 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
0 USD
us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
0 USD
us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
4000000 USD
CY2021Q3 cnp Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification To Regulatory Asset After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax
0 USD
CY2020Q3 cnp Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification To Regulatory Asset After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax
0 USD
cnp Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification To Regulatory Asset After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax
0 USD
cnp Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification To Regulatory Asset After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax
15000000 USD
CY2021Q3 us-gaap Oci Equity Method Investment Tax
OciEquityMethodInvestmentTax
0 USD
CY2020Q3 us-gaap Oci Equity Method Investment Tax
OciEquityMethodInvestmentTax
0 USD
us-gaap Oci Equity Method Investment Tax
OciEquityMethodInvestmentTax
0 USD
us-gaap Oci Equity Method Investment Tax
OciEquityMethodInvestmentTax
0 USD
CY2021Q3 us-gaap Oci Equity Method Investment After Tax
OciEquityMethodInvestmentAfterTax
0 USD
CY2020Q3 us-gaap Oci Equity Method Investment After Tax
OciEquityMethodInvestmentAfterTax
1000000 USD
us-gaap Oci Equity Method Investment After Tax
OciEquityMethodInvestmentAfterTax
2000000 USD
us-gaap Oci Equity Method Investment After Tax
OciEquityMethodInvestmentAfterTax
-2000000 USD
CY2021Q3 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
5000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
2000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
10000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
16000000 USD
CY2021Q3 cnp Comprehensive Income Netof Tax Before Preferred Stock Dividend
ComprehensiveIncomeNetofTaxBeforePreferredStockDividend
223000000 USD
CY2020Q3 cnp Comprehensive Income Netof Tax Before Preferred Stock Dividend
ComprehensiveIncomeNetofTaxBeforePreferredStockDividend
123000000 USD
cnp Comprehensive Income Netof Tax Before Preferred Stock Dividend
ComprehensiveIncomeNetofTaxBeforePreferredStockDividend
842000000 USD
cnp Comprehensive Income Netof Tax Before Preferred Stock Dividend
ComprehensiveIncomeNetofTaxBeforePreferredStockDividend
-957000000 USD
CY2021Q3 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
23000000 USD
CY2020Q3 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
52000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
82000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
127000000 USD
CY2021Q3 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
200000000 USD
CY2020Q3 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
71000000 USD
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
760000000 USD
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-1084000000 USD
CY2021Q3 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
133000000 USD
CY2020Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
147000000 USD
CY2021Q3 us-gaap Marketable Securities Current
MarketableSecuritiesCurrent
911000000 USD
CY2020Q4 us-gaap Marketable Securities Current
MarketableSecuritiesCurrent
871000000 USD
CY2021Q3 cnp Equity Securities Without Readily Determinable Fair Value Amount Current
EquitySecuritiesWithoutReadilyDeterminableFairValueAmountCurrent
363000000 USD
CY2020Q4 cnp Equity Securities Without Readily Determinable Fair Value Amount Current
EquitySecuritiesWithoutReadilyDeterminableFairValueAmountCurrent
0 USD
CY2021Q3 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
50000000 USD
CY2020Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
52000000 USD
CY2021Q3 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
650000000 USD
CY2020Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
676000000 USD
CY2021Q3 cnp Accrued Unbilled Revenues Allowancefor Credit Losses Current
AccruedUnbilledRevenuesAllowanceforCreditLossesCurrent
2000000 USD
CY2020Q4 cnp Accrued Unbilled Revenues Allowancefor Credit Losses Current
AccruedUnbilledRevenuesAllowanceforCreditLossesCurrent
5000000 USD
CY2021Q3 us-gaap Unbilled Receivables Current
UnbilledReceivablesCurrent
293000000 USD
CY2020Q4 us-gaap Unbilled Receivables Current
UnbilledReceivablesCurrent
505000000 USD
CY2021Q3 us-gaap Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
217000000 USD
CY2020Q4 us-gaap Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
203000000 USD
CY2021Q3 us-gaap Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
376000000 USD
CY2020Q4 us-gaap Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
297000000 USD
CY2021Q3 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
23000000 USD
CY2020Q4 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
0 USD
CY2021Q3 us-gaap Income Taxes Receivable
IncomeTaxesReceivable
14000000 USD
CY2020Q4 us-gaap Income Taxes Receivable
IncomeTaxesReceivable
82000000 USD
CY2021Q3 us-gaap Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
3150000000 USD
CY2020Q4 us-gaap Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
0 USD
CY2021Q3 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
1578000000 USD
CY2020Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
139000000 USD
CY2021Q3 us-gaap Assets Current
AssetsCurrent
7708000000 USD
CY2020Q4 us-gaap Assets Current
AssetsCurrent
2920000000 USD
CY2021Q3 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
32692000000 USD
CY2020Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
32514000000 USD
CY2021Q3 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
10078000000 USD
CY2020Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
10152000000 USD
CY2021Q3 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
22614000000 USD
CY2020Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
22362000000 USD
CY2021Q3 us-gaap Goodwill
Goodwill
4294000000 USD
CY2020Q4 us-gaap Goodwill
Goodwill
4697000000 USD
CY2021Q3 us-gaap Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
2307000000 USD
CY2020Q4 us-gaap Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
2094000000 USD
CY2021Q3 us-gaap Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
9000000 USD
CY2020Q4 us-gaap Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
0 USD
CY2021Q3 cnp Equity Securities Without Readily Determinable Fair Value Amount Noncurrent
EquitySecuritiesWithoutReadilyDeterminableFairValueAmountNoncurrent
0 USD
CY2020Q4 cnp Equity Securities Without Readily Determinable Fair Value Amount Noncurrent
EquitySecuritiesWithoutReadilyDeterminableFairValueAmountNoncurrent
363000000 USD
CY2021Q3 us-gaap Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
0 USD
CY2020Q4 us-gaap Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
782000000 USD
CY2021Q3 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
228000000 USD
CY2020Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
253000000 USD
CY2021Q3 cnp Assets Noncurrent Other Than Property Plant And Equipment
AssetsNoncurrentOtherThanPropertyPlantAndEquipment
6838000000 USD
CY2020Q4 cnp Assets Noncurrent Other Than Property Plant And Equipment
AssetsNoncurrentOtherThanPropertyPlantAndEquipment
8189000000 USD
CY2021Q3 us-gaap Assets
Assets
37160000000 USD
CY2020Q4 us-gaap Assets
Assets
33471000000 USD
CY2021Q3 us-gaap Short Term Borrowings
ShortTermBorrowings
7000000 USD
CY2020Q4 us-gaap Short Term Borrowings
ShortTermBorrowings
24000000 USD
CY2021Q3 cnp Transition And System Restoration Bonds Long Term Debt Current
TransitionAndSystemRestorationBondsLongTermDebtCurrent
217000000 USD
CY2020Q4 cnp Transition And System Restoration Bonds Long Term Debt Current
TransitionAndSystemRestorationBondsLongTermDebtCurrent
211000000 USD
CY2021Q3 cnp Indexed Debt Current
IndexedDebtCurrent
11000000 USD
CY2020Q4 cnp Indexed Debt Current
IndexedDebtCurrent
15000000 USD
CY2021Q3 us-gaap Other Long Term Debt Current
OtherLongTermDebtCurrent
863000000 USD
CY2020Q4 us-gaap Other Long Term Debt Current
OtherLongTermDebtCurrent
1669000000 USD
CY2021Q3 cnp Indexed Debt Securities Derivative
IndexedDebtSecuritiesDerivative
993000000 USD
CY2020Q4 cnp Indexed Debt Securities Derivative
IndexedDebtSecuritiesDerivative
953000000 USD
CY2021Q3 us-gaap Accounts Payable Current
AccountsPayableCurrent
905000000 USD
CY2020Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
853000000 USD
CY2021Q3 us-gaap Taxes Payable Current
TaxesPayableCurrent
265000000 USD
CY2020Q4 us-gaap Taxes Payable Current
TaxesPayableCurrent
265000000 USD
CY2021Q3 us-gaap Interest Payable Current
InterestPayableCurrent
126000000 USD
CY2020Q4 us-gaap Interest Payable Current
InterestPayableCurrent
145000000 USD
CY2021Q3 us-gaap Dividends Payable Current
DividendsPayableCurrent
107000000 USD
CY2020Q4 us-gaap Dividends Payable Current
DividendsPayableCurrent
136000000 USD
CY2021Q3 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
111000000 USD
CY2020Q4 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
119000000 USD
CY2021Q3 us-gaap Derivative Liabilities Current
DerivativeLiabilitiesCurrent
0 USD
CY2020Q4 us-gaap Derivative Liabilities Current
DerivativeLiabilitiesCurrent
3000000 USD
CY2021Q3 us-gaap Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
512000000 USD
CY2020Q4 us-gaap Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
0 USD
CY2021Q3 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
390000000 USD
CY2020Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
432000000 USD
CY2021Q3 us-gaap Liabilities Current
LiabilitiesCurrent
4507000000 USD
CY2020Q4 us-gaap Liabilities Current
LiabilitiesCurrent
4825000000 USD
CY2021Q3 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
3750000000 USD
CY2020Q4 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
3603000000 USD
CY2021Q3 us-gaap Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
13000000 USD
CY2020Q4 us-gaap Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
27000000 USD
CY2021Q3 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
560000000 USD
CY2020Q4 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
680000000 USD
CY2021Q3 us-gaap Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
3144000000 USD
CY2020Q4 us-gaap Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
3448000000 USD
CY2021Q3 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
926000000 USD
CY2020Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
1019000000 USD
CY2021Q3 us-gaap Liabilities Other Than Longterm Debt Noncurrent
LiabilitiesOtherThanLongtermDebtNoncurrent
8393000000 USD
CY2020Q4 us-gaap Liabilities Other Than Longterm Debt Noncurrent
LiabilitiesOtherThanLongtermDebtNoncurrent
8777000000 USD
CY2021Q3 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
USD
CY2021Q3 cnp Transition And System Restoration Bonds Long Term Debt Non Current
TransitionAndSystemRestorationBondsLongTermDebtNonCurrent
393000000 USD
CY2020Q4 cnp Transition And System Restoration Bonds Long Term Debt Non Current
TransitionAndSystemRestorationBondsLongTermDebtNonCurrent
536000000 USD
CY2021Q3 us-gaap Other Long Term Debt Noncurrent
OtherLongTermDebtNoncurrent
15001000000 USD
CY2020Q4 us-gaap Other Long Term Debt Noncurrent
OtherLongTermDebtNoncurrent
10985000000 USD
CY2021Q3 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
15394000000 USD
CY2020Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
11521000000 USD
CY2020Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
USD
CY2021Q3 us-gaap Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
1000000 USD
CY2020Q4 us-gaap Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
0 USD
CY2021Q3 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.01
CY2020Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.01
CY2021Q3 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2020Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2021Q3 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
800000 shares
CY2020Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
2402400 shares
CY2021Q3 us-gaap Preferred Stock Liquidation Preference Value
PreferredStockLiquidationPreferenceValue
800000000 USD
CY2020Q4 us-gaap Preferred Stock Liquidation Preference Value
PreferredStockLiquidationPreferenceValue
2402000000 USD
CY2021Q3 us-gaap Preferred Stock Value
PreferredStockValue
790000000 USD
CY2020Q4 us-gaap Preferred Stock Value
PreferredStockValue
2363000000 USD
CY2021Q3 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2020Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2021Q3 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1000000000 shares
CY2020Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1000000000 shares
CY2021Q3 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
628849375 shares
CY2020Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
551355861 shares
CY2021Q3 us-gaap Common Stock Value
CommonStockValue
6000000 USD
CY2020Q4 us-gaap Common Stock Value
CommonStockValue
6000000 USD
CY2021Q3 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
8517000000 USD
CY2020Q4 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
6914000000 USD
CY2021Q3 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-368000000 USD
CY2020Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-845000000 USD
CY2021Q3 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-80000000 USD
CY2020Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-90000000 USD
CY2021Q3 us-gaap Stockholders Equity
StockholdersEquity
8865000000 USD
CY2020Q4 us-gaap Stockholders Equity
StockholdersEquity
8348000000 USD
CY2021Q3 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
37160000000 USD
CY2020Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
33471000000 USD
us-gaap Net Income Loss
NetIncomeLoss
832000000 USD
us-gaap Net Income Loss
NetIncomeLoss
-973000000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
987000000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
885000000 USD
us-gaap Amortization Of Financing Costs
AmortizationOfFinancingCosts
27000000 USD
us-gaap Amortization Of Financing Costs
AmortizationOfFinancingCosts
23000000 USD
us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
1000000 USD
us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
1000000 USD
us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
86000000 USD
us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
-429000000 USD
cnp Goodwillimpairmentandlossfromreclassificationtoheldforsale
Goodwillimpairmentandlossfromreclassificationtoheldforsale
0 USD
cnp Goodwillimpairmentandlossfromreclassificationtoheldforsale
Goodwillimpairmentandlossfromreclassificationtoheldforsale
175000000 USD
cnp Indexed Debt Securities Gain Loss
IndexedDebtSecuritiesGainLoss
-40000000 USD
cnp Indexed Debt Securities Gain Loss
IndexedDebtSecuritiesGainLoss
-25000000 USD
us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
185000000 USD
us-gaap Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments
MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments
40000000 USD
us-gaap Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments
MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments
14000000 USD
us-gaap Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
8000000 USD
us-gaap Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
0 USD
us-gaap Inventory Write Down
InventoryWriteDown
0 USD
us-gaap Inventory Write Down
InventoryWriteDown
3000000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
258000000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-1499000000 USD
us-gaap Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
116000000 USD
us-gaap Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
109000000 USD
us-gaap Pension Contributions
PensionContributions
59000000 USD
us-gaap Pension Contributions
PensionContributions
84000000 USD
us-gaap Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
-231000000 USD
us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
278000000 USD
us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
309000000 USD
us-gaap Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
106000000 USD
us-gaap Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
-326000000 USD
us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
104000000 USD
us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
50000000 USD
us-gaap Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
-68000000 USD
us-gaap Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
-4000000 USD
us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-53000000 USD
us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-251000000 USD
us-gaap Increase Decrease In Derivative Assets And Liabilities
IncreaseDecreaseInDerivativeAssetsAndLiabilities
51000000 USD
us-gaap Increase Decrease In Derivative Assets And Liabilities
IncreaseDecreaseInDerivativeAssetsAndLiabilities
14000000 USD
us-gaap Increase Decrease In Margin Deposits Outstanding
IncreaseDecreaseInMarginDepositsOutstanding
0 USD
us-gaap Increase Decrease In Margin Deposits Outstanding
IncreaseDecreaseInMarginDepositsOutstanding
-65000000 USD
cnp Increase Decrease Interest And Taxes Accrued
IncreaseDecreaseInterestAndTaxesAccrued
-12000000 USD
cnp Increase Decrease Interest And Taxes Accrued
IncreaseDecreaseInterestAndTaxesAccrued
-53000000 USD
us-gaap Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
2309000000 USD
us-gaap Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
81000000 USD
us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-11000000 USD
us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-6000000 USD
us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
-24000000 USD
us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
30000000 USD
us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
-2000000 USD
us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
-5000000 USD
us-gaap Increase Decrease In Other Noncurrent Liabilities
IncreaseDecreaseInOtherNoncurrentLiabilities
-46000000 USD
us-gaap Increase Decrease In Other Noncurrent Liabilities
IncreaseDecreaseInOtherNoncurrentLiabilities
46000000 USD
us-gaap Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
12000000 USD
us-gaap Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
1000000 USD
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-551000000 USD
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
1439000000 USD
us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
2148000000 USD
us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
1889000000 USD
us-gaap Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
0 USD
us-gaap Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
46000000 USD
us-gaap Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
22000000 USD
us-gaap Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
1136000000 USD
us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
-22000000 USD
us-gaap Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
114000000 USD
us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
0 USD
us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
672000000 USD
us-gaap Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
0 USD
us-gaap Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
723000000 USD
us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-6000000 USD
us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
-24000000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-2104000000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-683000000 USD
us-gaap Proceeds From Repayments Of Other Debt
ProceedsFromRepaymentsOfOtherDebt
-27000000 USD
us-gaap Proceeds From Repayments Of Other Debt
ProceedsFromRepaymentsOfOtherDebt
37000000 USD
us-gaap Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
596000000 USD
us-gaap Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
-1057000000 USD
us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
4493000000 USD
us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
299000000 USD
us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
1990000000 USD
us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
1060000000 USD
us-gaap Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
0 USD
us-gaap Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
1050000000 USD
us-gaap Repayments Of Lines Of Credit
RepaymentsOfLinesOfCredit
0 USD
us-gaap Repayments Of Lines Of Credit
RepaymentsOfLinesOfCredit
1050000000 USD
us-gaap Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
38000000 USD
us-gaap Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
4000000 USD
us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-6000000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
2644000000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-819000000 USD
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
-11000000 USD
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
-63000000 USD
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
167000000 USD
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
271000000 USD
CY2021Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
156000000 USD
CY2020Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
208000000 USD
CY2021Q3 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2020Q3 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2020Q3 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2021Q3 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2020Q3 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1000000000 shares
CY2021Q3 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1000000000 shares
CY2021Q3 us-gaap Stockholders Equity
StockholdersEquity
8865000000 USD
CY2020Q3 us-gaap Stockholders Equity
StockholdersEquity
8388000000 USD
CY2021Q3 us-gaap Stockholders Equity
StockholdersEquity
8865000000 USD
CY2020Q3 us-gaap Stockholders Equity
StockholdersEquity
8388000000 USD
CY2021Q3 cnp Number Of Registrants
NumberOfRegistrants
3 registrant
CY2021Q2 cnp Length Of Pipeline
LengthOfPipeline
17000 mi
CY2020Q4 us-gaap Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
782000000 USD
CY2021Q3 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
1740000000 USD
CY2021Q3 cnp Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
9000000 USD
CY2021Q3 us-gaap Revenues
Revenues
1749000000 USD
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
5996000000 USD
cnp Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
42000000 USD
us-gaap Revenues
Revenues
6038000000 USD
CY2020Q3 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
1610000000 USD
CY2020Q3 cnp Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
12000000 USD
CY2020Q3 us-gaap Revenues
Revenues
1622000000 USD
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
5317000000 USD
cnp Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
47000000 USD
us-gaap Revenues
Revenues
5364000000 USD
CY2021Q3 us-gaap Lease Income
LeaseIncome
2000000 USD
CY2020Q3 us-gaap Lease Income
LeaseIncome
2000000 USD
us-gaap Lease Income
LeaseIncome
6000000 USD
us-gaap Lease Income
LeaseIncome
4000000 USD
CY2020Q4 cnp Accounts Receivablefor Contractswith Customers
AccountsReceivableforContractswithCustomers
604000000 USD
CY2020Q4 us-gaap Unbilled Contracts Receivable
UnbilledContractsReceivable
505000000 USD
CY2020Q4 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
27000000 USD
CY2020Q4 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
18000000 USD
CY2021Q3 cnp Accounts Receivablefor Contractswith Customers
AccountsReceivableforContractswithCustomers
568000000 USD
CY2021Q3 us-gaap Unbilled Contracts Receivable
UnbilledContractsReceivable
293000000 USD
CY2021Q3 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
24000000 USD
CY2021Q3 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
22000000 USD
cnp Increase Decreasein Accounts Receivableon Contractswith Customers
IncreaseDecreaseinAccountsReceivableonContractswithCustomers
-36000000 USD
cnp Increase Decrease In Contract With Customer Asset Other Accrued Unbilled Receivables
IncreaseDecreaseInContractWithCustomerAssetOtherAccruedUnbilledReceivables
-212000000 USD
us-gaap Increase Decrease In Contract With Customer Asset
IncreaseDecreaseInContractWithCustomerAsset
-3000000 USD
us-gaap Increase Decrease In Contract With Customer Liability
IncreaseDecreaseInContractWithCustomerLiability
4000000 USD
us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
16000000 USD
CY2021Q3 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
245000000 USD
CY2021Q3 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
564000000 USD
CY2021Q3 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
809000000 USD
us-gaap Financing Receivable Allowance For Credit Losses Policy For Uncollectible Amounts
FinancingReceivableAllowanceForCreditLossesPolicyForUncollectibleAmounts
CenterPoint Energy and CERC segregate financial assets that fall under the scope of Topic 326, primarily trade receivables due in one year or less, into portfolio segments based on shared risk characteristics, such as geographical location and regulatory environment, for evaluation of expected credit losses. Historical and current information, such as average write-offs, are applied to each portfolio segment to estimate the allowance for losses on uncollectible receivables. Additionally, the allowance for losses on uncollectible receivables is adjusted for reasonable and supportable forecasts of future economic conditions, which can include changing weather, commodity prices, regulations, and macroeconomic factors, among others. Houston Electric recognizes losses on financial assets that fall under the scope of Topic 326. Losses on financial assets are primarily recoverable through regulatory mechanisms and do not materially impact Houston Electric's allowance for credit losses.
CY2021Q3 cnp Amount Of Allowed Equity Return Not Recognized In Period
AmountOfAllowedEquityReturnNotRecognizedInPeriod
206000000 USD
CY2020Q4 cnp Amount Of Allowed Equity Return Not Recognized In Period
AmountOfAllowedEquityReturnNotRecognizedInPeriod
229000000 USD
CY2021Q3 cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
12000000 USD
CY2020Q3 cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
10000000 USD
cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
31000000 USD
cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
24000000 USD
CY2021Q3 us-gaap Derivative Net Liability Position Aggregate Fair Value
DerivativeNetLiabilityPositionAggregateFairValue
13000000 USD
CY2020Q4 us-gaap Derivative Net Liability Position Aggregate Fair Value
DerivativeNetLiabilityPositionAggregateFairValue
20000000 USD
CY2021Q3 us-gaap Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
7000000 USD
CY2020Q4 us-gaap Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
7000000 USD
CY2021Q3 us-gaap Additional Collateral Aggregate Fair Value
AdditionalCollateralAggregateFairValue
6000000 USD
CY2020Q4 us-gaap Additional Collateral Aggregate Fair Value
AdditionalCollateralAggregateFairValue
3000000 USD
CY2021Q1 cnp Merger Exchange Ratio
MergerExchangeRatio
0.8595 shares
CY2021Q1 cnp Proceeds From Merger Interest
ProceedsFromMergerInterest
5000000 USD
CY2021Q1 cnp Proceeds From Merger Preferred Units
ProceedsFromMergerPreferredUnits
385000000 USD
CY2020Q4 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
363000000 USD
CY2021Q3 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
363000000 USD
cnp Saleof Units Percentage Trigger Rightof First Refusal
SaleofUnitsPercentageTriggerRightofFirstRefusal
0.05
CY2021Q3 cnp Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
47000000 USD
CY2020Q3 cnp Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
48000000 USD
cnp Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
142000000 USD
cnp Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
182000000 USD
CY2020Q4 us-gaap Goodwill
Goodwill
4697000000 USD
CY2021Q3 us-gaap Disposal Group Including Discontinued Operation Goodwill1
DisposalGroupIncludingDiscontinuedOperationGoodwill1
398000000 USD
us-gaap Goodwill Written Off Related To Sale Of Business Unit
GoodwillWrittenOffRelatedToSaleOfBusinessUnit
5000000 USD
CY2021Q3 us-gaap Goodwill
Goodwill
4294000000 USD
CY2021Q3 us-gaap Goodwill
Goodwill
4294000000 USD
CY2021Q3 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
68000000 USD
CY2021Q3 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
23000000 USD
CY2021Q3 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
45000000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
68000000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
18000000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
50000000 USD
CY2021Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year
FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
2000000 USD
CY2021Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
6000000 USD
CY2021Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
6000000 USD
CY2021Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
5000000 USD
CY2021Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
5000000 USD
CY2021Q3 us-gaap Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
5000000 USD
CY2021Q3 us-gaap Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
4000000000 USD
CY2021Q3 us-gaap Liability For Uncertain Tax Positions Noncurrent
LiabilityForUncertainTaxPositionsNoncurrent
4000000 USD
CY2021Q3 us-gaap Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
1000000 USD
CY2021Q3 us-gaap Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
6000000 USD
us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
3000000 USD
CY2021Q3 cnp Numberofsuretybondobligationsoutstanding
Numberofsuretybondobligationsoutstanding
50 suretyBond
CY2021Q3 cnp Performanceguaranteeobligationsoutstandingfaceamount
Performanceguaranteeobligationsoutstandingfaceamount
558000000 USD
cnp Percentageofworkyettobecompletedonprojectswithopensuretybonds
Percentageofworkyettobecompletedonprojectswithopensuretybonds
0.35
CY2021Q3 cnp Number Of Warranty Obligations Outstanding
NumberOfWarrantyObligationsOutstanding
35 warrantyObligation
CY2021Q3 cnp Warranty Obligations Outstanding Face Amount
WarrantyObligationsOutstandingFaceAmount
549000000 USD
CY2021Q3 cnp Energy Savings Commitments Not Guaranteed
EnergySavingsCommitmentsNotGuaranteed
1200000000 USD
CY2021Q3 us-gaap Guarantee Obligations Maximum Exposure
GuaranteeObligationsMaximumExposure
513000000 USD
cnp Number Of Owned Coal Ash Ponds
NumberOfOwnedCoalAshPonds
3 ashPond
CY2020Q2 cnp Noncashtransactionbeneficialconversionfeature
Noncashtransactionbeneficialconversionfeature
32000000 USD
CY2021Q3 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
150000000 USD
CY2020Q3 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
199000000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
630000000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
347000000 USD
CY2021Q3 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
23000000 USD
CY2020Q3 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
36000000 USD
us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
82000000 USD
us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
102000000 USD
CY2021Q3 cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
0 USD
CY2020Q3 cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
16000000 USD
cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
0 USD
cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
25000000 USD
CY2021Q3 us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
CY2020Q3 us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
CY2021Q3 us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
127000000 USD
CY2020Q3 us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
147000000 USD
us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
548000000 USD
us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
220000000 USD
CY2021Q3 us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
CY2020Q3 us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
CY2021Q3 us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
127000000 USD
CY2020Q3 us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
147000000 USD
us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
548000000 USD
us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
220000000 USD
CY2021Q3 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
68000000 USD
CY2020Q3 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-78000000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
202000000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-1320000000 USD
CY2021Q3 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
195000000 USD
CY2021Q3 us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
195000000 USD
CY2020Q3 us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
69000000 USD
CY2020Q3 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
69000000 USD
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
750000000 USD
us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
750000000 USD
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
-1100000000 USD
us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
-1100000000 USD
CY2021Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
604607000 shares
CY2020Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
544811000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
580819000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
525160000 shares
CY2021Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
609382000 shares
CY2020Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
548188000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
601403000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
525160000 shares
CY2021Q3 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.21
CY2020Q3 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.27
us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.94
us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.42
CY2021Q3 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
0.11
CY2020Q3 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
-0.14
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
0.35
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
-2.52
CY2021Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.32
CY2020Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.13
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.29
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-2.10
CY2021Q3 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.21
CY2020Q3 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.27
us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.91
us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.42
CY2021Q3 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
0.11
CY2020Q3 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
-0.14
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
0.34
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
-2.52
CY2021Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.32
CY2020Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.13
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.25
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-2.10
CY2020Q3 us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
CY2021Q3 us-gaap Revenues
Revenues
1749000000 USD
CY2021Q3 us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
150000000 USD
CY2020Q3 us-gaap Revenues
Revenues
1622000000 USD
CY2020Q3 us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
199000000 USD
CY2021Q3 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
68000000 USD
CY2020Q3 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-78000000 USD
CY2021Q3 us-gaap Net Income Loss
NetIncomeLoss
218000000 USD
CY2020Q3 us-gaap Net Income Loss
NetIncomeLoss
121000000 USD
us-gaap Revenues
Revenues
6038000000 USD
us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
630000000 USD
us-gaap Revenues
Revenues
5364000000 USD
us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
347000000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
202000000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-1320000000 USD
us-gaap Net Income Loss
NetIncomeLoss
832000000 USD
us-gaap Net Income Loss
NetIncomeLoss
-973000000 USD
CY2021Q3 cnp Total Assets Classifiedas Held For Sale Currentand Noncurrent
TotalAssetsClassifiedasHeldForSaleCurrentandNoncurrent
3150000000 USD
CY2020Q4 cnp Total Assets Classifiedas Held For Sale Currentand Noncurrent
TotalAssetsClassifiedasHeldForSaleCurrentandNoncurrent
782000000 USD
CY2021Q3 us-gaap Assets
Assets
37160000000 USD
CY2020Q4 us-gaap Assets
Assets
33471000000 USD
us-gaap Interest Paid Net
InterestPaidNet
427000000 USD
us-gaap Interest Paid Net
InterestPaidNet
324000000 USD
us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
-47000000 USD
us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
117000000 USD
us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
290000000 USD
us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
220000000 USD
us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
2000000 USD
us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
14000000 USD
cnp Noncashtransactionbeneficialconversionfeature
Noncashtransactionbeneficialconversionfeature
0 USD
cnp Noncashtransactionbeneficialconversionfeature
Noncashtransactionbeneficialconversionfeature
32000000 USD
cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
0 USD
cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
25000000 USD
CY2021Q3 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
133000000 USD
CY2020Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
147000000 USD
CY2021Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
156000000 USD
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
167000000 USD
CY2021Q3 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
23000000 USD
CY2020Q3 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
36000000 USD
us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
82000000 USD
us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
102000000 USD
CY2021Q3 cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
0 USD
CY2020Q3 cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
16000000 USD
cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
0 USD
cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
25000000 USD
CY2021Q3 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
23000000 USD
CY2020Q3 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
52000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
82000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
127000000 USD
CY2021Q2 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-85000000 USD
CY2020Q2 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-84000000 USD
CY2021Q3 us-gaap Oci Equity Method Investment Before Tax
OciEquityMethodInvestmentBeforeTax
0 USD
CY2020Q3 us-gaap Oci Equity Method Investment Before Tax
OciEquityMethodInvestmentBeforeTax
1000000 USD
CY2021Q3 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
1000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
0 USD
CY2021Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
-1000000 USD
CY2020Q3 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
CY2021Q3 cnp Other Comprehensive Income Loss Defined Benefit Plan Gain Loss From Settlement Reclassification Adjustment From Aoci Before Tax
OtherComprehensiveIncomeLossDefinedBenefitPlanGainLossFromSettlementReclassificationAdjustmentFromAOCIBeforeTax
-3000000 USD
CY2020Q3 cnp Other Comprehensive Income Loss Defined Benefit Plan Gain Loss From Settlement Reclassification Adjustment From Aoci Before Tax
OtherComprehensiveIncomeLossDefinedBenefitPlanGainLossFromSettlementReclassificationAdjustmentFromAOCIBeforeTax
0 USD
CY2021Q3 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
1000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
0 USD
CY2021Q3 us-gaap Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
1000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
1000000 USD
CY2021Q3 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
5000000 USD
CY2020Q3 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
2000000 USD
CY2021Q3 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-80000000 USD
CY2020Q3 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-82000000 USD
CY2020Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-90000000 USD
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-98000000 USD
us-gaap Oci Equity Method Investment Before Tax
OciEquityMethodInvestmentBeforeTax
2000000 USD
us-gaap Oci Equity Method Investment Before Tax
OciEquityMethodInvestmentBeforeTax
-2000000 USD
us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
1000000 USD
us-gaap Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
1000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
-5000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
-5000000 USD
cnp Other Comprehensive Income Loss Defined Benefit Plan Gain Loss From Settlement Reclassification Adjustment From Aoci Before Tax
OtherComprehensiveIncomeLossDefinedBenefitPlanGainLossFromSettlementReclassificationAdjustmentFromAOCIBeforeTax
-3000000 USD
cnp Other Comprehensive Income Loss Defined Benefit Plan Gain Loss From Settlement Reclassification Adjustment From Aoci Before Tax
OtherComprehensiveIncomeLossDefinedBenefitPlanGainLossFromSettlementReclassificationAdjustmentFromAOCIBeforeTax
0 USD
us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
1000000 USD
us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
0 USD
cnp Reclassification Of Net Deferred Loss From Cash Flow Hedges To Regulatory Assets3
ReclassificationOfNetDeferredLossFromCashFlowHedgesToRegulatoryAssets3
0 USD
cnp Reclassification Of Net Deferred Loss From Cash Flow Hedges To Regulatory Assets3
ReclassificationOfNetDeferredLossFromCashFlowHedgesToRegulatoryAssets3
19000000 USD
us-gaap Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
2000000 USD
us-gaap Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
7000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
10000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
16000000 USD
CY2021Q3 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-80000000 USD
CY2020Q3 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-82000000 USD

Files In Submission

Name View Source Status
0001130310-21-000051-index-headers.html Edgar Link pending
0001130310-21-000051-index.html Edgar Link pending
0001130310-21-000051.txt Edgar Link pending
0001130310-21-000051-xbrl.zip Edgar Link pending
cehe_exhibit3112x9302021.htm Edgar Link pending
cehe_exhibit3122x9302021.htm Edgar Link pending
cehe_exhibit3212x9302021.htm Edgar Link pending
cehe_exhibit3222x9302021.htm Edgar Link pending
cerc_exhibit3113x9302021.htm Edgar Link pending
cerc_exhibit3123x9302021.htm Edgar Link pending
cerc_exhibit3213x9302021.htm Edgar Link pending
cerc_exhibit3223x9302021.htm Edgar Link pending
cnp-20210930.htm Edgar Link pending
cnp-20210930.xsd Edgar Link pending
cnp-20210930_cal.xml Edgar Link unprocessable
cnp-20210930_def.xml Edgar Link unprocessable
cnp-20210930_htm.xml Edgar Link completed
cnp-20210930_lab.xml Edgar Link unprocessable
cnp-20210930_pre.xml Edgar Link unprocessable
cnp_exhibit3111x9302021.htm Edgar Link pending
cnp_exhibit3121x9302021.htm Edgar Link pending
cnp_exhibit3211x9302021.htm Edgar Link pending
cnp_exhibit3221x9302021.htm Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
MetaLinks.json Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R56.htm Edgar Link pending
R57.htm Edgar Link pending
R58.htm Edgar Link pending
R59.htm Edgar Link pending
R6.htm Edgar Link pending
R60.htm Edgar Link pending
R61.htm Edgar Link pending
R62.htm Edgar Link pending
R63.htm Edgar Link pending
R64.htm Edgar Link pending
R65.htm Edgar Link pending
R66.htm Edgar Link pending
R67.htm Edgar Link pending
R68.htm Edgar Link pending
R69.htm Edgar Link pending
R7.htm Edgar Link pending
R70.htm Edgar Link pending
R71.htm Edgar Link pending
R72.htm Edgar Link pending
R73.htm Edgar Link pending
R74.htm Edgar Link pending
R75.htm Edgar Link pending
R76.htm Edgar Link pending
R77.htm Edgar Link pending
R78.htm Edgar Link pending
R79.htm Edgar Link pending
R8.htm Edgar Link pending
R80.htm Edgar Link pending
R81.htm Edgar Link pending
R82.htm Edgar Link pending
R9.htm Edgar Link pending
R9999.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending