2021 Q2 Form 10-Q Financial Statement

#000113031021000041 Filed on August 05, 2021

View on sec.gov

Income Statement

Concept 2021 Q2 2020 Q4 2020 Q2
Revenue $1.742B $2.054B $1.575B
YoY Change 10.6% 1.73% -5.01%
Cost Of Revenue $58.00M $69.00M
YoY Change -15.94% 13.11%
Gross Profit $1.684B $1.506B
YoY Change 11.82% -5.7%
Gross Profit Margin 96.67% 95.62%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $327.0M $305.0M $297.0M
YoY Change 10.1% 0.0% -7.76%
% of Gross Profit 19.42% 19.72%
Operating Expenses $1.446B $1.769B $1.340B
YoY Change 7.91% 1.38% -6.23%
Operating Profit $296.0M $235.0M
YoY Change 25.96% 2.62%
Interest Expense -$133.0M -$47.00M -$92.00M
YoY Change 44.57% -63.28% 27.78%
% of Operating Profit -44.93% -39.15%
Other Income/Expense, Net -$115.0M $16.00M -$71.00M
YoY Change 61.97% 100.0% 12.7%
Pretax Income $181.0M $254.0M $164.0M
YoY Change 10.37% 64.94% -1.2%
Income Tax -$19.00M $54.00M $29.00M
% Of Pretax Income -10.5% 21.26% 17.68%
Net Earnings $251.0M $200.0M $105.0M
YoY Change 139.05% 27.39% -46.15%
Net Earnings / Revenue 14.41% 9.74% 6.67%
Basic Earnings Per Share $0.38 $0.11
Diluted Earnings Per Share $0.37 $364.3K $0.11
COMMON SHARES
Basic Shares Outstanding 585.7M shares 544.8M shares 528.1M shares
Diluted Shares Outstanding 596.3M shares 530.8M shares

Balance Sheet

Concept 2021 Q2 2020 Q4 2020 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments $1.059B $1.018B $921.0M
YoY Change 14.98% -4.23% -3.86%
Cash & Equivalents $136.0M $147.0M $168.0M
Short-Term Investments $923.0M $871.0M $753.0M
Other Short-Term Assets $2.951B $644.0M $383.0M
YoY Change 670.5% -59.6% -40.8%
Inventory $440.0M $500.0M $462.0M
Prepaid Expenses
Receivables $651.0M $676.0M $735.0M
Other Receivables $78.00M $82.00M $0.00
Total Short-Term Assets $5.179B $2.920B $2.501B
YoY Change 107.08% -25.83% -24.8%
LONG-TERM ASSETS
Property, Plant & Equipment $22.10B $22.36B $21.35B
YoY Change 3.5% 8.43% 7.1%
Goodwill $4.294B $4.697B $4.697B
YoY Change -8.58% -3.79% -9.31%
Intangibles
YoY Change
Long-Term Investments $882.0M $783.0M $855.0M
YoY Change 3.16% -67.48% -65.38%
Other Assets $225.0M $253.0M $235.0M
YoY Change -4.26% 7.2% -13.92%
Total Long-Term Assets $31.29B $30.55B $29.65B
YoY Change 5.53% -3.3% -3.94%
TOTAL ASSETS
Total Short-Term Assets $5.179B $2.920B $2.501B
Total Long-Term Assets $31.29B $30.55B $29.65B
Total Assets $36.47B $33.47B $32.15B
YoY Change 13.43% -5.79% -5.97%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $797.0M $853.0M $670.0M
YoY Change 18.96% -3.51% -28.42%
Accrued Expenses $155.0M $145.0M $159.0M
YoY Change -2.52% -8.23% 1.27%
Deferred Revenue $109.0M $119.0M $124.0M
YoY Change -12.1% -4.03%
Short-Term Debt $3.000M $24.00M $19.00M
YoY Change -84.21%
Long-Term Debt Due $290.0M $1.895B $1.930B
YoY Change -84.97% 118.32% 295.49%
Total Short-Term Liabilities $3.369B $4.825B $4.309B
YoY Change -21.81% 21.29% 43.83%
LONG-TERM LIABILITIES
Long-Term Debt $15.85B $11.52B $10.94B
YoY Change 44.95% -19.12% -22.55%
Other Long-Term Liabilities $946.0M $1.019B $774.0M
YoY Change 22.22% 38.08% 18.53%
Total Long-Term Liabilities $16.80B $12.54B $11.71B
YoY Change 43.45% -16.3% -20.73%
TOTAL LIABILITIES
Total Short-Term Liabilities $3.369B $4.825B $4.309B
Total Long-Term Liabilities $16.80B $12.54B $11.71B
Total Liabilities $20.17B $17.37B $16.02B
YoY Change 25.89% -8.41% -9.85%
SHAREHOLDERS EQUITY
Retained Earnings -$343.0M -$845.0M -$771.0M
YoY Change -55.51% -233.7% -239.67%
Common Stock $6.000M $6.000M $5.000M
YoY Change 20.0% 20.0% 0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $8.870B $8.348B $8.392B
YoY Change
Total Liabilities & Shareholders Equity $36.47B $33.47B $32.15B
YoY Change 13.43% -5.79% -5.97%

Cashflow Statement

Concept 2021 Q2 2020 Q4 2020 Q2
OPERATING ACTIVITIES
Net Income $251.0M $200.0M $105.0M
YoY Change 139.05% 27.39% -46.15%
Depreciation, Depletion And Amortization $327.0M $305.0M $297.0M
YoY Change 10.1% 0.0% -7.76%
Cash From Operating Activities $605.0M $556.0M $519.0M
YoY Change 16.57% 0.72% 71.29%
INVESTING ACTIVITIES
Capital Expenditures -$789.0M -$707.0M -$614.0M
YoY Change 28.5% 3.36% -2.85%
Acquisitions
YoY Change
Other Investing Activities $17.00M $125.0M $1.125B
YoY Change -98.49% 228.95% 5013.64%
Cash From Investing Activities -$772.0M -$582.0M $511.0M
YoY Change -251.08% -9.91% -183.77%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 157.0M -15.00M -1.083B
YoY Change -114.5% -122.06% -481.34%
NET CHANGE
Cash From Operating Activities 605.0M 556.0M 519.0M
Cash From Investing Activities -772.0M -582.0M 511.0M
Cash From Financing Activities 157.0M -15.00M -1.083B
Net Change In Cash -10.00M -41.00M -53.00M
YoY Change -81.13% 57.69% 130.43%
FREE CASH FLOW
Cash From Operating Activities $605.0M $556.0M $519.0M
Capital Expenditures -$789.0M -$707.0M -$614.0M
Free Cash Flow $1.394B $1.263B $1.133B
YoY Change 23.04% 2.18% 21.18%

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
Q2
dei Amendment Flag
AmendmentFlag
false
CY2019 us-gaap Accounting Standards Update Extensible List
AccountingStandardsUpdateExtensibleList
http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member
CY2021Q2 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2021Q2 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2021Q2 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2021Q2 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 Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
TX
dei Entity Tax Identification Number
EntityTaxIdentificationNumber
74-0694415
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 Document Period End Date
DocumentPeriodEndDate
2021-06-30
dei Document Transition Report
DocumentTransitionReport
false
dei Entity File Number
EntityFileNumber
1-31447
dei Entity Registrant Name
EntityRegistrantName
CenterPoint Energy, Inc.
dei City Area Code
CityAreaCode
713
dei Local Phone Number
LocalPhoneNumber
207-1111
dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
dei Entity Small Business
EntitySmallBusiness
false
dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
CY2021Q2 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
126000000 USD
us-gaap Regulated Operating Revenue
RegulatedOperatingRevenue
4136000000 USD
us-gaap Regulated Operating Revenue
RegulatedOperatingRevenue
3549000000 USD
CY2021Q2 us-gaap Unregulated Operating Revenue
UnregulatedOperatingRevenue
90000000 USD
CY2020Q2 us-gaap Unregulated Operating Revenue
UnregulatedOperatingRevenue
99000000 USD
us-gaap Unregulated Operating Revenue
UnregulatedOperatingRevenue
153000000 USD
dei Entity Shell Company
EntityShellCompany
false
CY2021Q3 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
592890377 shares
CY2021Q2 us-gaap Regulated Operating Revenue
RegulatedOperatingRevenue
1652000000 USD
CY2020Q2 us-gaap Regulated Operating Revenue
RegulatedOperatingRevenue
1476000000 USD
us-gaap Unregulated Operating Revenue
UnregulatedOperatingRevenue
193000000 USD
CY2021Q2 us-gaap Revenues
Revenues
1742000000 USD
CY2020Q2 us-gaap Revenues
Revenues
1575000000 USD
us-gaap Revenues
Revenues
4289000000 USD
us-gaap Revenues
Revenues
3742000000 USD
CY2021Q2 us-gaap Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
258000000 USD
CY2020Q2 us-gaap Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
202000000 USD
us-gaap Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
1193000000 USD
CY2020Q2 us-gaap Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
643000000 USD
CY2021Q2 us-gaap Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
677000000 USD
us-gaap Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
811000000 USD
CY2021Q2 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
58000000 USD
CY2020Q2 us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
69000000 USD
us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
98000000 USD
us-gaap Cost Of Goods And Services Sold
CostOfGoodsAndServicesSold
133000000 USD
us-gaap Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
1346000000 USD
us-gaap Utilities Operating Expense Maintenance Operations And Other Costs And Expenses
UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses
1317000000 USD
CY2021Q2 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
327000000 USD
CY2020Q2 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
297000000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
634000000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
579000000 USD
CY2020Q2 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
129000000 USD
us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
269000000 USD
us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
265000000 USD
CY2021Q2 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
CY2020Q2 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
185000000 USD
CY2021Q2 us-gaap Costs And Expenses
CostsAndExpenses
1446000000 USD
CY2020Q2 us-gaap Costs And Expenses
CostsAndExpenses
1340000000 USD
us-gaap Costs And Expenses
CostsAndExpenses
3540000000 USD
us-gaap Costs And Expenses
CostsAndExpenses
3290000000 USD
CY2021Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
296000000 USD
CY2020Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
235000000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
749000000 USD
us-gaap Operating Income Loss
OperatingIncomeLoss
452000000 USD
CY2021Q2 us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
75000000 USD
CY2020Q2 us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
75000000 USD
us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
52000000 USD
us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
-69000000 USD
CY2021Q2 cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
-77000000 USD
CY2020Q2 cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
-76000000 USD
cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
-51000000 USD
cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
59000000 USD
CY2021Q2 us-gaap Interest And Debt Expense
InterestAndDebtExpense
119000000 USD
CY2020Q2 us-gaap Interest And Debt Expense
InterestAndDebtExpense
128000000 USD
us-gaap Interest And Debt Expense
InterestAndDebtExpense
232000000 USD
us-gaap Interest And Debt Expense
InterestAndDebtExpense
267000000 USD
CY2021Q2 cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
5000000 USD
CY2020Q2 cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
7000000 USD
cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
11000000 USD
cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
15000000 USD
CY2021Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
67000000 USD
CY2020Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
43000000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
175000000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-1432000000 USD
CY2021Q2 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
11000000 USD
CY2020Q2 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
22000000 USD
us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
3000000 USD
us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
36000000 USD
CY2021Q2 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-48000000 USD
CY2020Q2 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-71000000 USD
us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-64000000 USD
us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-1688000000 USD
CY2021Q2 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
248000000 USD
CY2020Q2 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
164000000 USD
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
685000000 USD
us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
-1236000000 USD
CY2021Q2 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-3000000 USD
CY2020Q2 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
29000000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
614000000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
-918000000 USD
CY2021Q2 us-gaap Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
0 USD
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
71000000 USD
us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-318000000 USD
CY2021Q2 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
251000000 USD
CY2020Q2 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
135000000 USD
CY2020Q2 us-gaap Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
38000000 USD
us-gaap Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
0 USD
us-gaap Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
21000000 USD
CY2021Q2 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
0 USD
CY2020Q2 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-30000000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
0 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-176000000 USD
CY2021Q2 us-gaap Net Income Loss
NetIncomeLoss
251000000 USD
CY2020Q2 us-gaap Net Income Loss
NetIncomeLoss
105000000 USD
CY2021Q2 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
586000000 shares
CY2020Q2 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
528000000 shares
us-gaap Net Income Loss
NetIncomeLoss
614000000 USD
us-gaap Net Income Loss
NetIncomeLoss
-1094000000 USD
CY2021Q2 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
30000000 USD
CY2020Q2 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
46000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
59000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
75000000 USD
CY2021Q2 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
221000000 USD
CY2020Q2 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
59000000 USD
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
555000000 USD
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
-1169000000 USD
CY2021Q2 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.38
CY2020Q2 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.17
us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.98
us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
-1.93
CY2021Q2 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
0
CY2020Q2 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
-0.06
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
0
CY2020Q2 us-gaap Oci Equity Method Investment After Tax
OciEquityMethodInvestmentAfterTax
0 USD
CY2021Q2 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
0
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
-0.34
CY2021Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.38
CY2020Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.11
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.98
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-2.27
CY2021Q2 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.37
CY2020Q2 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.17
us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.93
us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
-1.93
CY2020Q2 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
-0.06
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
0
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
-0.34
CY2021Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.37
CY2020Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.11
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.93
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-2.27
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
569000000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
515000000 shares
CY2021Q2 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
596000000 shares
CY2020Q2 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
531000000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
596000000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
515000000 shares
CY2021Q2 us-gaap Net Income Loss
NetIncomeLoss
251000000 USD
CY2020Q2 us-gaap Net Income Loss
NetIncomeLoss
105000000 USD
us-gaap Net Income Loss
NetIncomeLoss
614000000 USD
us-gaap Net Income Loss
NetIncomeLoss
-1094000000 USD
CY2021Q2 us-gaap Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
1000000 USD
CY2020Q2 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
1000000 USD
us-gaap Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
2000000 USD
CY2021Q2 us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
-1000000 USD
CY2020Q2 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
-3000000 USD
us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
-2000000 USD
CY2021Q2 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
0 USD
CY2020Q2 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
4000000 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
CY2021Q2 cnp Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification To Regulatory Asset After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax
0 USD
CY2020Q2 cnp Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification To Regulatory Asset After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax
15000000 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
CY2021Q2 us-gaap Oci Equity Method Investment Tax
OciEquityMethodInvestmentTax
0 USD
CY2020Q2 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
CY2021Q2 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
-3000000 USD
CY2021Q2 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
2000000 USD
CY2020Q2 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
16000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
5000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
14000000 USD
CY2021Q2 cnp Comprehensive Income Netof Tax Before Preferred Stock Dividend
ComprehensiveIncomeNetofTaxBeforePreferredStockDividend
253000000 USD
CY2020Q2 cnp Comprehensive Income Netof Tax Before Preferred Stock Dividend
ComprehensiveIncomeNetofTaxBeforePreferredStockDividend
121000000 USD
cnp Comprehensive Income Netof Tax Before Preferred Stock Dividend
ComprehensiveIncomeNetofTaxBeforePreferredStockDividend
619000000 USD
cnp Comprehensive Income Netof Tax Before Preferred Stock Dividend
ComprehensiveIncomeNetofTaxBeforePreferredStockDividend
-1080000000 USD
CY2021Q2 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
30000000 USD
CY2020Q2 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
46000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
59000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
75000000 USD
CY2021Q2 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
223000000 USD
CY2020Q2 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
75000000 USD
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
560000000 USD
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-1155000000 USD
CY2021Q2 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
136000000 USD
CY2020Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
147000000 USD
CY2021Q2 us-gaap Marketable Securities Current
MarketableSecuritiesCurrent
923000000 USD
CY2020Q4 us-gaap Marketable Securities Current
MarketableSecuritiesCurrent
871000000 USD
CY2021Q2 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
62000000 USD
CY2020Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
52000000 USD
CY2021Q2 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
651000000 USD
CY2020Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
676000000 USD
CY2021Q2 cnp Accrued Unbilled Revenues Allowancefor Credit Losses Current
AccruedUnbilledRevenuesAllowanceforCreditLossesCurrent
2000000 USD
CY2020Q4 cnp Accrued Unbilled Revenues Allowancefor Credit Losses Current
AccruedUnbilledRevenuesAllowanceforCreditLossesCurrent
5000000 USD
CY2021Q2 us-gaap Unbilled Receivables Current
UnbilledReceivablesCurrent
270000000 USD
CY2020Q4 us-gaap Unbilled Receivables Current
UnbilledReceivablesCurrent
505000000 USD
CY2021Q2 us-gaap Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
121000000 USD
CY2020Q4 us-gaap Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
203000000 USD
CY2021Q2 us-gaap Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
319000000 USD
CY2020Q4 us-gaap Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
297000000 USD
CY2021Q2 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
6000000 USD
CY2020Q4 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
0 USD
CY2021Q2 us-gaap Income Taxes Receivable
IncomeTaxesReceivable
78000000 USD
CY2020Q4 us-gaap Income Taxes Receivable
IncomeTaxesReceivable
82000000 USD
CY2021Q2 us-gaap Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
2192000000 USD
CY2020Q4 us-gaap Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
0 USD
CY2021Q2 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
483000000 USD
CY2020Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
139000000 USD
CY2021Q2 us-gaap Assets Current
AssetsCurrent
5179000000 USD
CY2020Q4 us-gaap Assets Current
AssetsCurrent
2920000000 USD
CY2021Q2 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
32004000000 USD
CY2020Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
32514000000 USD
CY2021Q2 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
9908000000 USD
CY2020Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
10152000000 USD
CY2021Q2 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
22096000000 USD
CY2020Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
22362000000 USD
CY2021Q2 us-gaap Goodwill
Goodwill
4294000000 USD
CY2020Q4 us-gaap Goodwill
Goodwill
4697000000 USD
CY2021Q2 us-gaap Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
3427000000 USD
CY2020Q4 us-gaap Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
2094000000 USD
CY2021Q2 us-gaap Equity Method Investments
EquityMethodInvestments
882000000 USD
CY2020Q4 us-gaap Equity Method Investments
EquityMethodInvestments
783000000 USD
CY2021Q2 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
363000000 USD
CY2020Q4 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
363000000 USD
CY2021Q2 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
225000000 USD
CY2020Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
252000000 USD
CY2021Q2 cnp Assets Noncurrent Other Than Property Plant And Equipment
AssetsNoncurrentOtherThanPropertyPlantAndEquipment
9191000000 USD
CY2020Q4 cnp Assets Noncurrent Other Than Property Plant And Equipment
AssetsNoncurrentOtherThanPropertyPlantAndEquipment
8189000000 USD
CY2021Q2 us-gaap Assets
Assets
36466000000 USD
CY2020Q4 us-gaap Assets
Assets
33471000000 USD
CY2021Q2 cnp Indexed Debt Securities Derivative
IndexedDebtSecuritiesDerivative
1004000000 USD
CY2021Q2 us-gaap Short Term Borrowings
ShortTermBorrowings
3000000 USD
CY2020Q4 us-gaap Short Term Borrowings
ShortTermBorrowings
24000000 USD
CY2021Q2 cnp Transition And System Restoration Bonds Long Term Debt Current
TransitionAndSystemRestorationBondsLongTermDebtCurrent
215000000 USD
CY2020Q4 cnp Transition And System Restoration Bonds Long Term Debt Current
TransitionAndSystemRestorationBondsLongTermDebtCurrent
211000000 USD
CY2021Q2 cnp Indexed Debt Current
IndexedDebtCurrent
12000000 USD
CY2020Q4 cnp Indexed Debt Current
IndexedDebtCurrent
15000000 USD
CY2021Q2 us-gaap Other Long Term Debt Current
OtherLongTermDebtCurrent
63000000 USD
CY2020Q4 us-gaap Other Long Term Debt Current
OtherLongTermDebtCurrent
1669000000 USD
CY2020Q4 cnp Indexed Debt Securities Derivative
IndexedDebtSecuritiesDerivative
953000000 USD
CY2021Q2 us-gaap Accounts Payable Current
AccountsPayableCurrent
797000000 USD
CY2020Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
853000000 USD
CY2021Q2 us-gaap Taxes Payable Current
TaxesPayableCurrent
203000000 USD
CY2020Q4 us-gaap Taxes Payable Current
TaxesPayableCurrent
265000000 USD
CY2021Q2 us-gaap Interest Payable Current
InterestPayableCurrent
155000000 USD
CY2020Q4 us-gaap Interest Payable Current
InterestPayableCurrent
145000000 USD
us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
1383000000 USD
us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
1278000000 USD
CY2021Q2 us-gaap Dividends Payable Current
DividendsPayableCurrent
0 USD
CY2020Q4 us-gaap Dividends Payable Current
DividendsPayableCurrent
136000000 USD
CY2021Q2 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
109000000 USD
CY2020Q4 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
119000000 USD
CY2021Q2 us-gaap Derivative Liabilities Current
DerivativeLiabilitiesCurrent
0 USD
CY2020Q4 us-gaap Derivative Liabilities Current
DerivativeLiabilitiesCurrent
3000000 USD
CY2021Q2 us-gaap Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
472000000 USD
CY2020Q4 us-gaap Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
0 USD
CY2021Q2 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
336000000 USD
CY2020Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
432000000 USD
CY2021Q2 us-gaap Liabilities Current
LiabilitiesCurrent
3369000000 USD
CY2020Q4 us-gaap Liabilities Current
LiabilitiesCurrent
4825000000 USD
CY2021Q2 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
3698000000 USD
CY2020Q4 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
3603000000 USD
CY2021Q2 us-gaap Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
14000000 USD
CY2020Q4 us-gaap Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
27000000 USD
CY2020Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
1019000000 USD
CY2021Q2 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
665000000 USD
CY2020Q4 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
680000000 USD
CY2021Q2 us-gaap Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
3051000000 USD
CY2020Q4 us-gaap Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
3448000000 USD
CY2021Q2 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
946000000 USD
CY2021Q2 us-gaap Liabilities Other Than Longterm Debt Noncurrent
LiabilitiesOtherThanLongtermDebtNoncurrent
8374000000 USD
CY2020Q4 us-gaap Liabilities Other Than Longterm Debt Noncurrent
LiabilitiesOtherThanLongtermDebtNoncurrent
8777000000 USD
CY2021Q2 cnp Transition And System Restoration Bonds Long Term Debt Non Current
TransitionAndSystemRestorationBondsLongTermDebtNonCurrent
424000000 USD
CY2020Q4 cnp Transition And System Restoration Bonds Long Term Debt Non Current
TransitionAndSystemRestorationBondsLongTermDebtNonCurrent
536000000 USD
CY2021Q2 us-gaap Other Long Term Debt Noncurrent
OtherLongTermDebtNoncurrent
15429000000 USD
CY2020Q4 us-gaap Other Long Term Debt Noncurrent
OtherLongTermDebtNoncurrent
10985000000 USD
CY2021Q2 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
15853000000 USD
CY2020Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
11521000000 USD
CY2021Q2 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
USD
CY2020Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
USD
CY2020Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.01
CY2021Q2 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.01
CY2020Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2021Q2 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2021Q2 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
1775903 shares
CY2020Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
2402400 shares
CY2021Q2 us-gaap Preferred Stock Liquidation Preference Value
PreferredStockLiquidationPreferenceValue
1776000000 USD
CY2020Q4 us-gaap Preferred Stock Liquidation Preference Value
PreferredStockLiquidationPreferenceValue
2402000000 USD
CY2021Q2 us-gaap Preferred Stock Value
PreferredStockValue
1739000000 USD
CY2020Q4 us-gaap Preferred Stock Value
PreferredStockValue
2363000000 USD
CY2021Q2 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
CY2020Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1000000000 shares
CY2021Q2 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1000000000 shares
CY2021Q2 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
592852490 shares
CY2020Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
551355861 shares
CY2021Q2 us-gaap Common Stock Value
CommonStockValue
6000000 USD
CY2020Q4 us-gaap Common Stock Value
CommonStockValue
6000000 USD
CY2021Q2 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
7553000000 USD
CY2020Q4 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
6914000000 USD
CY2021Q2 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-343000000 USD
CY2020Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-845000000 USD
CY2021Q2 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-85000000 USD
CY2020Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-90000000 USD
CY2021Q2 us-gaap Stockholders Equity
StockholdersEquity
8870000000 USD
CY2020Q4 us-gaap Stockholders Equity
StockholdersEquity
8348000000 USD
CY2021Q2 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
36466000000 USD
CY2020Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
33471000000 USD
us-gaap Net Income Loss
NetIncomeLoss
614000000 USD
us-gaap Net Income Loss
NetIncomeLoss
-1094000000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
634000000 USD
us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
579000000 USD
us-gaap Amortization Of Financing Costs
AmortizationOfFinancingCosts
15000000 USD
us-gaap Amortization Of Financing Costs
AmortizationOfFinancingCosts
15000000 USD
us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
0 USD
us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
1000000 USD
us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
51000000 USD
us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
-477000000 USD
cnp Goodwillimpairmentandlossfromreclassificationtoheldforsale
Goodwillimpairmentandlossfromreclassificationtoheldforsale
0 USD
cnp Goodwillimpairmentandlossfromreclassificationtoheldforsale
Goodwillimpairmentandlossfromreclassificationtoheldforsale
172000000 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
52000000 USD
us-gaap Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments
MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments
-69000000 USD
cnp Indexed Debt Securities Gain Loss
IndexedDebtSecuritiesGainLoss
-51000000 USD
cnp Indexed Debt Securities Gain Loss
IndexedDebtSecuritiesGainLoss
59000000 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
175000000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-1432000000 USD
us-gaap Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
77000000 USD
us-gaap Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
109000000 USD
us-gaap Pension Contributions
PensionContributions
8000000 USD
us-gaap Pension Contributions
PensionContributions
5000000 USD
us-gaap Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
-220000000 USD
us-gaap Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
-312000000 USD
us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
-53000000 USD
us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
-22000000 USD
us-gaap Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
-4000000 USD
us-gaap Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
-106000000 USD
us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-120000000 USD
us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-221000000 USD
us-gaap Increase Decrease In Derivative Assets And Liabilities
IncreaseDecreaseInDerivativeAssetsAndLiabilities
23000000 USD
us-gaap Increase Decrease In Derivative Assets And Liabilities
IncreaseDecreaseInDerivativeAssetsAndLiabilities
3000000 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
-48000000 USD
cnp Increase Decrease Interest And Taxes Accrued
IncreaseDecreaseInterestAndTaxesAccrued
14000000 USD
us-gaap Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
2329000000 USD
us-gaap Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
65000000 USD
us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-24000000 USD
us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-1000000 USD
us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
-76000000 USD
us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
-39000000 USD
us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
0 USD
us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
-15000000 USD
us-gaap Increase Decrease In Other Noncurrent Liabilities
IncreaseDecreaseInOtherNoncurrentLiabilities
7000000 USD
us-gaap Increase Decrease In Other Noncurrent Liabilities
IncreaseDecreaseInOtherNoncurrentLiabilities
41000000 USD
us-gaap Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
5000000 USD
us-gaap Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
3000000 USD
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-1076000000 USD
us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
1181000000 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
7000000 USD
us-gaap Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
0 USD
us-gaap Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
1136000000 USD
us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
-7000000 USD
us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
8000000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-1376000000 USD
us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-143000000 USD
us-gaap Proceeds From Repayments Of Other Debt
ProceedsFromRepaymentsOfOtherDebt
-27000000 USD
us-gaap Proceeds From Repayments Of Other Debt
ProceedsFromRepaymentsOfOtherDebt
19000000 USD
us-gaap Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
225000000 USD
us-gaap Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
-1498000000 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
1960000000 USD
us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
1032000000 USD
us-gaap Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
0 USD
us-gaap Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
3000000 USD
us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
183000000 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
37000000 USD
us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
227000000 USD
us-gaap Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
65000000 USD
us-gaap Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
66000000 USD
us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
0 USD
us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
673000000 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
724000000 USD
us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-4000000 USD
us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-4000000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
2442000000 USD
us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-1115000000 USD
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
-10000000 USD
us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
-77000000 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
CY2021Q2 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
157000000 USD
CY2020Q2 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
194000000 USD
CY2020Q2 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2021Q2 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2021Q2 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2020Q2 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.01
CY2021Q2 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1000000000 shares
CY2020Q2 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1000000000 shares
CY2021Q2 us-gaap Stockholders Equity
StockholdersEquity
8870000000 USD
CY2020Q2 us-gaap Stockholders Equity
StockholdersEquity
8392000000 USD
CY2021Q2 us-gaap Stockholders Equity
StockholdersEquity
8870000000 USD
CY2020Q2 us-gaap Stockholders Equity
StockholdersEquity
8392000000 USD
CY2021Q2 cnp Number Of Registrants
NumberOfRegistrants
3 registrant
CY2021Q2 cnp Length Of Pipeline
LengthOfPipeline
17000 mi
CY2020Q2 us-gaap Disposal Group Including Discontinued Operation Revenue
DisposalGroupIncludingDiscontinuedOperationRevenue
309000000 USD
CY2020Q2 us-gaap Disposal Group Including Discontinued Operation Costs Of Goods Sold
DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold
306000000 USD
CY2020Q2 cnp Disposal Group Including Discontinued Operation Operationand Maintenance Expense
DisposalGroupIncludingDiscontinuedOperationOperationandMaintenanceExpense
35000000 USD
CY2020Q2 cnp Disposal Group Including Discontinued Operation Taxes Otherthan Income Taxes
DisposalGroupIncludingDiscontinuedOperationTaxesOtherthanIncomeTaxes
2000000 USD
CY2020Q2 us-gaap Disposal Group Including Discontinued Operation Operating Expense
DisposalGroupIncludingDiscontinuedOperationOperatingExpense
343000000 USD
CY2020Q2 us-gaap Discontinued Operation Income Loss From Discontinued Operation Before Income Tax
DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
-34000000 USD
CY2020Q2 us-gaap Gain Loss On Sales Of Assets And Asset Impairment Charges
GainLossOnSalesOfAssetsAndAssetImpairmentCharges
42000000 USD
CY2020Q2 us-gaap Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
38000000 USD
CY2020Q2 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-30000000 USD
us-gaap Disposal Group Including Discontinued Operation Revenue
DisposalGroupIncludingDiscontinuedOperationRevenue
1417000000 USD
us-gaap Disposal Group Including Discontinued Operation Costs Of Goods Sold
DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold
1158000000 USD
cnp Disposal Group Including Discontinued Operation Operationand Maintenance Expense
DisposalGroupIncludingDiscontinuedOperationOperationandMaintenanceExpense
218000000 USD
cnp Disposal Group Including Discontinued Operation Taxes Otherthan Income Taxes
DisposalGroupIncludingDiscontinuedOperationTaxesOtherthanIncomeTaxes
4000000 USD
us-gaap Disposal Group Including Discontinued Operation Operating Expense
DisposalGroupIncludingDiscontinuedOperationOperatingExpense
1380000000 USD
us-gaap Discontinued Operation Income Loss From Discontinued Operation Before Income Tax
DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
37000000 USD
us-gaap Gain Loss On Sales Of Assets And Asset Impairment Charges
GainLossOnSalesOfAssetsAndAssetImpairmentCharges
-192000000 USD
us-gaap Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
21000000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-176000000 USD
CY2021Q2 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
1715000000 USD
CY2021Q2 cnp Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
27000000 USD
CY2021Q2 us-gaap Revenues
Revenues
1742000000 USD
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
4256000000 USD
cnp Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
33000000 USD
us-gaap Revenues
Revenues
4289000000 USD
CY2020Q2 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
1566000000 USD
CY2020Q2 cnp Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
9000000 USD
CY2020Q2 us-gaap Revenues
Revenues
1575000000 USD
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
3707000000 USD
cnp Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
35000000 USD
us-gaap Revenues
Revenues
3742000000 USD
CY2021Q2 us-gaap Lease Income
LeaseIncome
2000000 USD
CY2020Q2 us-gaap Lease Income
LeaseIncome
1000000 USD
us-gaap Lease Income
LeaseIncome
4000000 USD
us-gaap Lease Income
LeaseIncome
2000000 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
CY2021Q2 cnp Accounts Receivablefor Contractswith Customers
AccountsReceivableforContractswithCustomers
505000000 USD
CY2021Q2 us-gaap Unbilled Contracts Receivable
UnbilledContractsReceivable
272000000 USD
CY2021Q2 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
24000000 USD
CY2021Q2 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
22000000 USD
cnp Increase Decreasein Accounts Receivableon Contractswith Customers
IncreaseDecreaseinAccountsReceivableonContractswithCustomers
-99000000 USD
cnp Increase Decrease In Contract With Customer Asset Other Accrued Unbilled Receivables
IncreaseDecreaseInContractWithCustomerAssetOtherAccruedUnbilledReceivables
-233000000 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
15000000 USD
CY2021Q2 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
253000000 USD
CY2021Q2 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
538000000 USD
CY2021Q2 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
791000000 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.
CY2021Q2 cnp Amount Of Allowed Equity Return Not Recognized In Period
AmountOfAllowedEquityReturnNotRecognizedInPeriod
217000000 USD
CY2020Q4 cnp Amount Of Allowed Equity Return Not Recognized In Period
AmountOfAllowedEquityReturnNotRecognizedInPeriod
229000000 USD
CY2021Q2 cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
11000000 USD
CY2020Q2 cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
8000000 USD
cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
19000000 USD
cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
14000000 USD
CY2021Q2 us-gaap Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
7000000 USD
CY2021Q2 us-gaap Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
-77000000 USD
CY2020Q2 us-gaap Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
-76000000 USD
us-gaap Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
-51000000 USD
us-gaap Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
59000000 USD
CY2021Q2 us-gaap Derivative Net Liability Position Aggregate Fair Value
DerivativeNetLiabilityPositionAggregateFairValue
14000000 USD
CY2020Q4 us-gaap Derivative Net Liability Position Aggregate Fair Value
DerivativeNetLiabilityPositionAggregateFairValue
20000000 USD
CY2021Q2 us-gaap Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
7000000 USD
CY2020Q4 us-gaap Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
7000000 USD
CY2021Q2 us-gaap Additional Collateral Aggregate Fair Value
AdditionalCollateralAggregateFairValue
7000000 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
CY2021Q2 us-gaap Equity Method Investments
EquityMethodInvestments
882000000 USD
CY2020Q4 us-gaap Equity Method Investments
EquityMethodInvestments
783000000 USD
CY2021Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
67000000 USD
CY2020Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
43000000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
175000000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-1432000000 USD
CY2020Q4 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
363000000 USD
CY2021Q2 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
363000000 USD
cnp Saleof Units Percentage Trigger Rightof First Refusal
SaleofUnitsPercentageTriggerRightofFirstRefusal
0.05
CY2021Q2 cnp Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
47000000 USD
CY2020Q2 cnp Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
48000000 USD
cnp Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
95000000 USD
cnp Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
134000000 USD
CY2020Q4 us-gaap Goodwill
Goodwill
4697000000 USD
CY2021Q2 us-gaap Disposal Group Including Discontinued Operation Goodwill1
DisposalGroupIncludingDiscontinuedOperationGoodwill1
403000000 USD
CY2021Q2 us-gaap Goodwill
Goodwill
4294000000 USD
CY2021Q2 us-gaap Goodwill
Goodwill
4294000000 USD
CY2021Q2 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
68000000 USD
CY2021Q2 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
21000000 USD
CY2021Q2 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
47000000 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
CY2021Q2 us-gaap Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year
FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
3000000 USD
CY2021Q2 us-gaap Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
6000000 USD
CY2021Q2 us-gaap Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
6000000 USD
CY2021Q2 us-gaap Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
5000000 USD
CY2021Q2 us-gaap Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
5000000 USD
CY2021Q2 us-gaap Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
5000000 USD
CY2021Q2 us-gaap Other Short Term Borrowings
OtherShortTermBorrowings
3000000 USD
CY2020Q4 us-gaap Other Short Term Borrowings
OtherShortTermBorrowings
24000000 USD
CY2021Q2 us-gaap Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
4000000000 USD
CY2021Q2 us-gaap Liability For Uncertain Tax Positions Noncurrent
LiabilityForUncertainTaxPositionsNoncurrent
10000000 USD
CY2021Q2 us-gaap Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
1000000 USD
us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
9000000 USD
CY2021Q2 cnp Numberofsuretybondobligationsoutstanding
Numberofsuretybondobligationsoutstanding
47 suretyBond
CY2021Q2 cnp Performanceguaranteeobligationsoutstandingfaceamount
Performanceguaranteeobligationsoutstandingfaceamount
484000000 USD
cnp Percentageofworkyettobecompletedonprojectswithopensuretybonds
Percentageofworkyettobecompletedonprojectswithopensuretybonds
0.34
CY2021Q2 cnp Number Of Warranty Obligations Outstanding
NumberOfWarrantyObligationsOutstanding
34 warrantyObligation
CY2021Q2 cnp Warranty Obligations Outstanding Face Amount
WarrantyObligationsOutstandingFaceAmount
553000000 USD
CY2021Q2 cnp Energy Savings Commitments Not Guaranteed
EnergySavingsCommitmentsNotGuaranteed
1200000000 USD
CY2021Q2 us-gaap Guarantee Obligations Maximum Exposure
GuaranteeObligationsMaximumExposure
517000000 USD
cnp Number Of Owned Coal Ash Ponds
NumberOfOwnedCoalAshPonds
3 ashPond
CY2020Q2 cnp Noncashtransactionbeneficialconversionfeature
Noncashtransactionbeneficialconversionfeature
32000000 USD
CY2021Q2 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
251000000 USD
CY2020Q2 us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
135000000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
614000000 USD
us-gaap Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
-918000000 USD
CY2021Q2 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
30000000 USD
CY2020Q2 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
37000000 USD
us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
59000000 USD
us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
66000000 USD
CY2021Q2 cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
0 USD
CY2020Q2 cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
9000000 USD
cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
0 USD
cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
9000000 USD
CY2021Q2 us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
CY2020Q2 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
CY2021Q2 us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
221000000 USD
CY2020Q2 us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
89000000 USD
us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
555000000 USD
us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
-993000000 USD
CY2021Q2 us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
CY2020Q2 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
CY2021Q2 us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
221000000 USD
CY2020Q2 us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
89000000 USD
us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
555000000 USD
us-gaap Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
-993000000 USD
CY2021Q2 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
0 USD
CY2020Q2 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-30000000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
0 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-176000000 USD
CY2021Q2 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
221000000 USD
CY2021Q2 us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
221000000 USD
CY2020Q2 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
59000000 USD
CY2020Q2 us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
59000000 USD
us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
555000000 USD
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
555000000 USD
us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
-1169000000 USD
us-gaap Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
-1169000000 USD
CY2021Q2 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
585720000 shares
CY2020Q2 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
528066000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
568728000 shares
us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
515227000 shares
CY2021Q2 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
596330000 shares
CY2020Q2 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
530837000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
596130000 shares
us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
515227000 shares
CY2021Q2 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.38
CY2020Q2 us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.17
us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
0.98
us-gaap Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
-1.93
CY2021Q2 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
0
CY2020Q2 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
-0.06
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
0
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
-0.34
CY2021Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.38
CY2020Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.11
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.98
us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-2.27
CY2021Q2 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.37
CY2020Q2 us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.17
us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
0.93
us-gaap Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
-1.93
CY2021Q2 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
0
CY2020Q2 us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
-0.06
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
0
us-gaap Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
-0.34
CY2021Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.37
CY2020Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.11
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.93
us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-2.27
us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
CY2020Q2 us-gaap Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
0 USD
CY2021Q2 us-gaap Revenues
Revenues
1742000000 USD
CY2021Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
67000000 USD
CY2021Q2 us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
251000000 USD
CY2020Q2 us-gaap Revenues
Revenues
1575000000 USD
CY2020Q2 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
43000000 USD
CY2020Q2 us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
135000000 USD
CY2021Q2 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
0 USD
CY2020Q2 us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-30000000 USD
CY2021Q2 us-gaap Net Income Loss
NetIncomeLoss
251000000 USD
CY2020Q2 us-gaap Net Income Loss
NetIncomeLoss
105000000 USD
us-gaap Revenues
Revenues
4289000000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
175000000 USD
us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
614000000 USD
us-gaap Revenues
Revenues
3742000000 USD
us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
-1432000000 USD
us-gaap Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
-918000000 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
0 USD
us-gaap Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
-176000000 USD
us-gaap Net Income Loss
NetIncomeLoss
614000000 USD
us-gaap Net Income Loss
NetIncomeLoss
-1094000000 USD
CY2021Q2 cnp Total Assets Classifiedas Held For Sale Currentand Noncurrent
TotalAssetsClassifiedasHeldForSaleCurrentandNoncurrent
2192000000 USD
CY2020Q4 cnp Total Assets Classifiedas Held For Sale Currentand Noncurrent
TotalAssetsClassifiedasHeldForSaleCurrentandNoncurrent
0 USD
CY2021Q2 us-gaap Assets
Assets
36466000000 USD
CY2020Q4 us-gaap Assets
Assets
33471000000 USD
us-gaap Interest Paid Net
InterestPaidNet
261000000 USD
us-gaap Interest Paid Net
InterestPaidNet
196000000 USD
us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
13000000 USD
us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
4000000 USD
us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
249000000 USD
us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
195000000 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
9000000 USD
CY2021Q2 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
136000000 USD
CY2020Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
147000000 USD
CY2021Q2 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
157000000 USD
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
167000000 USD
CY2021Q2 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
30000000 USD
CY2020Q2 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
37000000 USD
us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
59000000 USD
us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
66000000 USD
CY2021Q2 cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
0 USD
CY2020Q2 cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
9000000 USD
cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
0 USD
cnp Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
9000000 USD
CY2021Q2 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
30000000 USD
CY2020Q2 us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
46000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
59000000 USD
us-gaap Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
75000000 USD
CY2021Q1 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-87000000 USD
CY2020Q1 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-100000000 USD
CY2021Q2 us-gaap Oci Equity Method Investment Before Tax
OciEquityMethodInvestmentBeforeTax
1000000 USD
CY2020Q2 us-gaap Oci Equity Method Investment Before Tax
OciEquityMethodInvestmentBeforeTax
0 USD
CY2021Q2 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
CY2020Q2 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
CY2021Q2 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
CY2020Q2 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
CY2021Q2 cnp Reclassification Of Net Deferred Loss From Cash Flow Hedges To Regulatory Assets3
ReclassificationOfNetDeferredLossFromCashFlowHedgesToRegulatoryAssets3
0 USD
CY2020Q2 cnp Reclassification Of Net Deferred Loss From Cash Flow Hedges To Regulatory Assets3
ReclassificationOfNetDeferredLossFromCashFlowHedgesToRegulatoryAssets3
19000000 USD
CY2021Q2 us-gaap Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
1000000 USD
CY2020Q2 us-gaap Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
5000000 USD
CY2021Q2 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
2000000 USD
CY2020Q2 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
16000000 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
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
-3000000 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
0 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
-4000000 USD
us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
-3000000 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
1000000 USD
us-gaap Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
6000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
5000000 USD
us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
14000000 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

Files In Submission

Name View Source Status
0001130310-21-000041-index-headers.html Edgar Link pending
0001130310-21-000041-index.html Edgar Link pending
0001130310-21-000041.txt Edgar Link pending
0001130310-21-000041-xbrl.zip Edgar Link pending
cehe_exhibit3112x6302021.htm Edgar Link pending
cehe_exhibit3122x6302021.htm Edgar Link pending
cehe_exhibit3212x6302021.htm Edgar Link pending
cehe_exhibit3222x6302021.htm Edgar Link pending
cerc_exhibit3113x6302021.htm Edgar Link pending
cerc_exhibit3123x6302021.htm Edgar Link pending
cerc_exhibit3213x6302021.htm Edgar Link pending
cerc_exhibit3223x6302021.htm Edgar Link pending
cnp-20210630.htm Edgar Link pending
cnp-20210630.xsd Edgar Link pending
cnp-20210630_cal.xml Edgar Link unprocessable
cnp-20210630_def.xml Edgar Link unprocessable
cnp-20210630_htm.xml Edgar Link completed
cnp-20210630_lab.xml Edgar Link unprocessable
cnp-20210630_pre.xml Edgar Link unprocessable
cnp_ex108retentionincentiv.htm Edgar Link pending
cnp_ex109execchairseparati.htm Edgar Link pending
cnp_exhibit3111x6302021.htm Edgar Link pending
cnp_exhibit3121x6302021.htm Edgar Link pending
cnp_exhibit3211x6302021.htm Edgar Link pending
cnp_exhibit3221x6302021.htm Edgar Link pending
exhibit424cnp-fixedratesup.htm Edgar Link pending
exhibit425cnp-fixedratesup.htm Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
image_01.jpg Edgar Link pending
image_0b.jpg 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