2021 Q4 Form 10-K Financial Statement
#000113031022000023 Filed on February 22, 2022
Income Statement
Concept | 2021 Q4 | 2021 | 2020 Q4 |
---|---|---|---|
Revenue | $2.314B | $8.352B | $2.054B |
YoY Change | 12.66% | 12.59% | 1.73% |
Cost Of Revenue | $208.0M | ||
YoY Change | -19.07% | ||
Gross Profit | $8.144B | ||
YoY Change | 13.73% | ||
Gross Profit Margin | 97.51% | ||
Selling, General & Admin | |||
YoY Change | |||
% of Gross Profit | |||
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $329.0M | $1.316B | $305.0M |
YoY Change | 7.87% | 10.68% | 0.0% |
% of Gross Profit | 16.16% | ||
Operating Expenses | $1.978B | $6.989B | $1.769B |
YoY Change | 11.81% | 12.84% | 1.38% |
Operating Profit | $1.363B | ||
YoY Change | 31.18% | ||
Interest Expense | -$289.0M | -$598.0M | -$47.00M |
YoY Change | 514.89% | -69.55% | -63.28% |
% of Operating Profit | -43.87% | ||
Other Income/Expense, Net | $38.00M | -$585.0M | $16.00M |
YoY Change | 137.5% | 22.9% | 100.0% |
Pretax Income | $85.00M | $778.0M | $254.0M |
YoY Change | -66.54% | 38.19% | 64.94% |
Income Tax | $47.00M | $110.0M | $54.00M |
% Of Pretax Income | 55.29% | 14.14% | 21.26% |
Net Earnings | $654.0M | $1.486B | $200.0M |
YoY Change | 227.0% | -292.24% | 27.39% |
Net Earnings / Revenue | 28.26% | 17.79% | 9.74% |
Basic Earnings Per Share | $2.35 | ||
Diluted Earnings Per Share | $1.027M | $2.28 | $364.3K |
COMMON SHARES | |||
Basic Shares Outstanding | 628.9M shares | 592.9M shares | 544.8M shares |
Diluted Shares Outstanding | 609.9M shares |
Balance Sheet
Concept | 2021 Q4 | 2021 | 2020 Q4 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $1.669B | $1.669B | $1.018B |
YoY Change | 63.95% | 63.95% | -4.23% |
Cash & Equivalents | $230.0M | $230.0M | $147.0M |
Short-Term Investments | $1.439B | $1.439B | $871.0M |
Other Short-Term Assets | $4.387B | $4.387B | $644.0M |
YoY Change | 581.21% | 581.21% | -59.6% |
Inventory | $608.0M | $608.0M | $500.0M |
Prepaid Expenses | |||
Receivables | $690.0M | $690.0M | $676.0M |
Other Receivables | $1.000M | $1.000M | $82.00M |
Total Short-Term Assets | $7.355B | $7.355B | $2.920B |
YoY Change | 151.88% | 151.88% | -25.83% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $23.48B | $23.51B | $22.36B |
YoY Change | 5.02% | 4.97% | 8.43% |
Goodwill | $4.294B | $4.697B | |
YoY Change | -8.58% | -3.79% | |
Intangibles | |||
YoY Change | |||
Long-Term Investments | $0.00 | $0.00 | $783.0M |
YoY Change | -100.0% | -100.0% | -67.48% |
Other Assets | $220.0M | $2.480B | $253.0M |
YoY Change | -13.04% | 9.49% | 7.2% |
Total Long-Term Assets | $30.32B | $30.32B | $30.55B |
YoY Change | -0.74% | -0.74% | -3.3% |
TOTAL ASSETS | |||
Total Short-Term Assets | $7.355B | $7.355B | $2.920B |
Total Long-Term Assets | $30.32B | $30.32B | $30.55B |
Total Assets | $37.68B | $37.68B | $33.47B |
YoY Change | 12.57% | 12.57% | -5.79% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $1.196B | $1.196B | $853.0M |
YoY Change | 40.21% | 40.21% | -3.51% |
Accrued Expenses | $136.0M | $142.0M | $145.0M |
YoY Change | -6.21% | -5.96% | -8.23% |
Deferred Revenue | $111.0M | $119.0M | |
YoY Change | -6.72% | -4.03% | |
Short-Term Debt | $7.000M | $7.000M | $24.00M |
YoY Change | -70.83% | -70.83% | |
Long-Term Debt Due | $538.0M | $538.0M | $1.895B |
YoY Change | -71.61% | -71.61% | 118.32% |
Total Short-Term Liabilities | $4.287B | $4.287B | $4.825B |
YoY Change | -11.15% | -11.15% | 21.29% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $15.56B | $15.56B | $11.52B |
YoY Change | 35.04% | 35.04% | -19.12% |
Other Long-Term Liabilities | $836.0M | $4.515B | $1.019B |
YoY Change | -17.96% | -12.74% | 38.08% |
Total Long-Term Liabilities | $16.39B | $20.07B | $12.54B |
YoY Change | 30.73% | 20.23% | -16.3% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $4.287B | $4.287B | $4.825B |
Total Long-Term Liabilities | $16.39B | $20.07B | $12.54B |
Total Liabilities | $20.68B | $28.26B | $17.37B |
YoY Change | 19.1% | 12.5% | -8.41% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $154.0M | -$845.0M | |
YoY Change | -118.22% | -233.7% | |
Common Stock | $6.000M | $6.000M | |
YoY Change | 0.0% | 20.0% | |
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $9.415B | $9.415B | $8.348B |
YoY Change | |||
Total Liabilities & Shareholders Equity | $37.68B | $37.68B | $33.47B |
YoY Change | 12.57% | 12.57% | -5.79% |
Cashflow Statement
Concept | 2021 Q4 | 2021 | 2020 Q4 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | $654.0M | $1.486B | $200.0M |
YoY Change | 227.0% | -292.24% | 27.39% |
Depreciation, Depletion And Amortization | $329.0M | $1.316B | $305.0M |
YoY Change | 7.87% | 10.68% | 0.0% |
Cash From Operating Activities | $573.0M | $22.00M | $556.0M |
YoY Change | 3.06% | -98.9% | 0.72% |
INVESTING ACTIVITIES | |||
Capital Expenditures | -$1.016B | -$3.164B | -$707.0M |
YoY Change | 43.71% | 21.88% | 3.36% |
Acquisitions | $0.00 | ||
YoY Change | |||
Other Investing Activities | $1.269B | -$15.00M | $125.0M |
YoY Change | 915.2% | -58.33% | 228.95% |
Cash From Investing Activities | $253.0M | -$1.851B | -$582.0M |
YoY Change | -143.47% | 46.32% | -9.91% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | $0.00 | ||
YoY Change | -100.0% | ||
Debt Paid & Issued, Net | $2.968B | ||
YoY Change | 72.16% | ||
Cash From Financing Activities | -728.0M | $1.916B | -15.00M |
YoY Change | 4753.33% | -329.74% | -122.06% |
NET CHANGE | |||
Cash From Operating Activities | 573.0M | $22.00M | 556.0M |
Cash From Investing Activities | 253.0M | -$1.851B | -582.0M |
Cash From Financing Activities | -728.0M | $1.916B | -15.00M |
Net Change In Cash | 98.00M | $87.00M | -41.00M |
YoY Change | -339.02% | -183.65% | 57.69% |
FREE CASH FLOW | |||
Cash From Operating Activities | $573.0M | $22.00M | $556.0M |
Capital Expenditures | -$1.016B | -$3.164B | -$707.0M |
Free Cash Flow | $1.589B | $3.186B | $1.263B |
YoY Change | 25.81% | -30.6% | 2.18% |
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-2.37 | |
CY2019 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
0.55 | |
CY2021 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.35 | |
CY2020 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-1.79 | |
CY2019 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.34 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.94 | |
CY2020 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.58 | |
CY2019 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.79 | |
CY2021 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
1.34 | |
CY2020 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-2.37 | |
CY2019 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
0.54 | |
CY2021 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.28 | |
CY2020 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-1.79 | |
CY2019 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.33 | |
CY2021 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
593000000 | shares |
CY2020 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
531000000 | shares |
CY2019 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
502000000 | shares |
CY2021 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
610000000 | shares |
CY2020 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
531000000 | shares |
CY2019 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
505000000 | shares |
CY2021 | us-gaap |
Net Income Loss
NetIncomeLoss
|
1486000000 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-773000000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
791000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
|
-7000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
|
0 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
|
-4000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
|
-21000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
|
5000000 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent
|
-12000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax
|
0 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax
|
0 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax
|
-1000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
|
0 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
|
0 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
|
-2000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax
|
0 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax
|
0 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax
|
0 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
|
-2000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
|
0 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
|
-1000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
|
0 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
|
4000000 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
|
0 | USD |
CY2021 | cnp |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification To Regulatory Asset After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax
|
0 | USD |
CY2020 | cnp |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification To Regulatory Asset After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax
|
15000000 | USD |
CY2019 | cnp |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification To Regulatory Asset After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax
|
0 | USD |
CY2021 | us-gaap |
Oci Equity Method Investment Tax
OciEquityMethodInvestmentTax
|
0 | USD |
CY2020 | us-gaap |
Oci Equity Method Investment Tax
OciEquityMethodInvestmentTax
|
0 | USD |
CY2019 | us-gaap |
Oci Equity Method Investment Tax
OciEquityMethodInvestmentTax
|
0 | USD |
CY2021 | us-gaap |
Oci Equity Method Investment After Tax
OciEquityMethodInvestmentAfterTax
|
3000000 | USD |
CY2020 | us-gaap |
Oci Equity Method Investment After Tax
OciEquityMethodInvestmentAfterTax
|
-2000000 | USD |
CY2019 | us-gaap |
Oci Equity Method Investment After Tax
OciEquityMethodInvestmentAfterTax
|
-1000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
26000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
8000000 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
10000000 | USD |
CY2021 | cnp |
Comprehensive Income Loss Net Of Tax Before Preferred Stock Dividends
ComprehensiveIncomeLossNetOfTaxBeforePreferredStockDividends
|
1512000000 | USD |
CY2020 | cnp |
Comprehensive Income Loss Net Of Tax Before Preferred Stock Dividends
ComprehensiveIncomeLossNetOfTaxBeforePreferredStockDividends
|
-765000000 | USD |
CY2019 | cnp |
Comprehensive Income Loss Net Of Tax Before Preferred Stock Dividends
ComprehensiveIncomeLossNetOfTaxBeforePreferredStockDividends
|
801000000 | USD |
CY2021 | us-gaap |
Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
|
95000000 | USD |
CY2020 | us-gaap |
Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
|
176000000 | USD |
CY2019 | us-gaap |
Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
|
117000000 | USD |
CY2021 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
1417000000 | USD |
CY2020 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-941000000 | USD |
CY2019 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
684000000 | USD |
CY2021Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
230000000 | USD |
CY2020Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
147000000 | USD |
CY2021Q4 | us-gaap |
Marketable Securities Current
MarketableSecuritiesCurrent
|
1439000000 | USD |
CY2020Q4 | us-gaap |
Marketable Securities Current
MarketableSecuritiesCurrent
|
871000000 | USD |
CY2021Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
44000000 | USD |
CY2020Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
52000000 | USD |
CY2021Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
690000000 | USD |
CY2020Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
676000000 | USD |
CY2021Q4 | cnp |
Accrued Unbilled Revenues Allowancefor Credit Losses Current
AccruedUnbilledRevenuesAllowanceforCreditLossesCurrent
|
6000000 | USD |
CY2020Q4 | cnp |
Accrued Unbilled Revenues Allowancefor Credit Losses Current
AccruedUnbilledRevenuesAllowanceforCreditLossesCurrent
|
5000000 | USD |
CY2021Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
513000000 | USD |
CY2020Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
505000000 | USD |
CY2021Q4 | us-gaap |
Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
|
186000000 | USD |
CY2020Q4 | us-gaap |
Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
|
203000000 | USD |
CY2021Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
422000000 | USD |
CY2020Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
297000000 | USD |
CY2021Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
9000000 | USD |
CY2020Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
0 | USD |
CY2021Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
1000000 | USD |
CY2020Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
82000000 | USD |
CY2021Q4 | us-gaap |
Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
2338000000 | USD |
CY2020Q4 | us-gaap |
Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
0 | USD |
CY2021Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
1395000000 | USD |
CY2020Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
18000000 | USD |
CY2021Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
132000000 | USD |
CY2020Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
121000000 | USD |
CY2021Q4 | us-gaap |
Assets Current
AssetsCurrent
|
7355000000 | USD |
CY2020Q4 | us-gaap |
Assets Current
AssetsCurrent
|
2920000000 | USD |
CY2021Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
23484000000 | USD |
CY2020Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
22362000000 | USD |
CY2021Q4 | us-gaap |
Goodwill
Goodwill
|
4294000000 | USD |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
4697000000 | USD |
CY2021Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
2321000000 | USD |
CY2020Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
2094000000 | USD |
CY2021Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
5000000 | USD |
CY2020Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
0 | USD |
CY2021Q4 | cnp |
Equity Securities Without Readily Determinable Fair Value Amount Noncurrent
EquitySecuritiesWithoutReadilyDeterminableFairValueAmountNoncurrent
|
0 | USD |
CY2020Q4 | cnp |
Equity Securities Without Readily Determinable Fair Value Amount Noncurrent
EquitySecuritiesWithoutReadilyDeterminableFairValueAmountNoncurrent
|
363000000 | USD |
CY2021Q4 | us-gaap |
Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
|
0 | USD |
CY2020Q4 | us-gaap |
Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
|
782000000 | USD |
CY2021Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
220000000 | USD |
CY2020Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
253000000 | USD |
CY2021Q4 | cnp |
Assets Noncurrent Other Than Property Plant And Equipment
AssetsNoncurrentOtherThanPropertyPlantAndEquipment
|
6840000000 | USD |
CY2020Q4 | cnp |
Assets Noncurrent Other Than Property Plant And Equipment
AssetsNoncurrentOtherThanPropertyPlantAndEquipment
|
8189000000 | USD |
CY2021Q4 | us-gaap |
Assets
Assets
|
37679000000 | USD |
CY2020Q4 | us-gaap |
Assets
Assets
|
33471000000 | USD |
CY2021Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
7000000 | USD |
CY2020Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
24000000 | USD |
CY2021Q4 | cnp |
Transition And System Restoration Bonds Long Term Debt Current
TransitionAndSystemRestorationBondsLongTermDebtCurrent
|
220000000 | USD |
CY2020Q4 | cnp |
Transition And System Restoration Bonds Long Term Debt Current
TransitionAndSystemRestorationBondsLongTermDebtCurrent
|
211000000 | USD |
CY2021Q4 | cnp |
Indexed Debt Current
IndexedDebtCurrent
|
10000000 | USD |
CY2020Q4 | cnp |
Indexed Debt Current
IndexedDebtCurrent
|
15000000 | USD |
CY2021Q4 | us-gaap |
Other Long Term Debt Current
OtherLongTermDebtCurrent
|
308000000 | USD |
CY2020Q4 | us-gaap |
Other Long Term Debt Current
OtherLongTermDebtCurrent
|
1669000000 | USD |
CY2021Q4 | cnp |
Indexed Debt Securities Derivative
IndexedDebtSecuritiesDerivative
|
903000000 | USD |
CY2020Q4 | cnp |
Indexed Debt Securities Derivative
IndexedDebtSecuritiesDerivative
|
953000000 | USD |
CY2021Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1196000000 | USD |
CY2020Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
853000000 | USD |
CY2021Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
378000000 | USD |
CY2020Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
265000000 | USD |
CY2021Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
136000000 | USD |
CY2020Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
145000000 | USD |
CY2021Q4 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
131000000 | USD |
CY2020Q4 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
136000000 | USD |
CY2021Q4 | us-gaap |
Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
|
111000000 | USD |
CY2020Q4 | us-gaap |
Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
|
119000000 | USD |
CY2021Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
2000000 | USD |
CY2020Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
3000000 | USD |
CY2021Q4 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
562000000 | USD |
CY2020Q4 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
0 | USD |
CY2021Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
323000000 | USD |
CY2020Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
432000000 | USD |
CY2021Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
4287000000 | USD |
CY2020Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
4825000000 | USD |
CY2021Q4 | us-gaap |
Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
|
3904000000 | USD |
CY2020Q4 | us-gaap |
Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
|
3603000000 | USD |
CY2021Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
12000000 | USD |
CY2020Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
27000000 | USD |
CY2021Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
511000000 | USD |
CY2020Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
680000000 | USD |
CY2021Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
3153000000 | USD |
CY2020Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
3448000000 | USD |
CY2021Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
836000000 | USD |
CY2020Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
1019000000 | USD |
CY2021Q4 | us-gaap |
Liabilities Other Than Longterm Debt Noncurrent
LiabilitiesOtherThanLongtermDebtNoncurrent
|
8416000000 | USD |
CY2020Q4 | us-gaap |
Liabilities Other Than Longterm Debt Noncurrent
LiabilitiesOtherThanLongtermDebtNoncurrent
|
8777000000 | USD |
CY2021Q4 | cnp |
Transition And System Restoration Bonds Long Term Debt Non Current
TransitionAndSystemRestorationBondsLongTermDebtNonCurrent
|
317000000 | USD |
CY2020Q4 | cnp |
Transition And System Restoration Bonds Long Term Debt Non Current
TransitionAndSystemRestorationBondsLongTermDebtNonCurrent
|
536000000 | USD |
CY2021Q4 | us-gaap |
Other Long Term Debt Noncurrent
OtherLongTermDebtNoncurrent
|
15241000000 | USD |
CY2020Q4 | us-gaap |
Other Long Term Debt Noncurrent
OtherLongTermDebtNoncurrent
|
10985000000 | USD |
CY2021Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
15558000000 | USD |
CY2020Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
11521000000 | USD |
CY2021Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
CY2020Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1000000000 | shares |
CY2021Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1000000000 | shares |
CY2020Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
CY2021Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
3000000 | USD |
CY2020Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
0 | USD |
CY2021Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.01 | |
CY2020Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.01 | |
CY2021Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
20000000 | shares |
CY2020Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
20000000 | shares |
CY2021Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
800000 | shares |
CY2020Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
2402400 | shares |
CY2021Q4 | us-gaap |
Preferred Stock Liquidation Preference Value
PreferredStockLiquidationPreferenceValue
|
800 | USD |
CY2020Q4 | us-gaap |
Preferred Stock Liquidation Preference Value
PreferredStockLiquidationPreferenceValue
|
2402 | USD |
CY2021Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
790000000 | USD |
CY2020Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
2363000000 | USD |
CY2021Q4 | 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 | |
CY2021Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
628923534 | shares |
CY2020Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
551355861 | shares |
CY2021Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
6000000 | USD |
CY2020Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
6000000 | USD |
CY2021Q4 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
8529000000 | USD |
CY2020Q4 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
6914000000 | USD |
CY2021Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
154000000 | USD |
CY2020Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
-845000000 | USD |
CY2021Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-64000000 | USD |
CY2020Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-90000000 | USD |
CY2021Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
9415000000 | USD |
CY2020Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
8348000000 | USD |
CY2021Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
37679000000 | USD |
CY2020Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
33471000000 | USD |
CY2021 | us-gaap |
Net Income Loss
NetIncomeLoss
|
1486000000 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-773000000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
791000000 | USD |
CY2021 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
1316000000 | USD |
CY2020 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
1189000000 | USD |
CY2019 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
1225000000 | USD |
CY2021 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
213000000 | USD |
CY2020 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-429000000 | USD |
CY2019 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
69000000 | USD |
CY2021 | cnp |
Goodwill Impairment And Loss From Reclassification To Held For Sale
GoodwillImpairmentAndLossFromReclassificationToHeldForSale
|
0 | USD |
CY2020 | cnp |
Goodwill Impairment And Loss From Reclassification To Held For Sale
GoodwillImpairmentAndLossFromReclassificationToHeldForSale
|
175000000 | USD |
CY2019 | cnp |
Goodwill Impairment And Loss From Reclassification To Held For Sale
GoodwillImpairmentAndLossFromReclassificationToHeldForSale
|
48000000 | USD |
CY2021 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | USD |
CY2020 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
185000000 | USD |
CY2019 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | USD |
CY2021 | us-gaap |
Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
|
681000000 | USD |
CY2020 | us-gaap |
Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
|
0 | USD |
CY2019 | us-gaap |
Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
|
0 | USD |
CY2021 | us-gaap |
Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments
MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments
|
-172000000 | USD |
CY2020 | us-gaap |
Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments
MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments
|
49000000 | USD |
CY2019 | us-gaap |
Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments
MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments
|
282000000 | USD |
CY2021 | cnp |
Indexed Debt Securities Gain Loss
IndexedDebtSecuritiesGainLoss
|
50000000 | USD |
CY2020 | cnp |
Indexed Debt Securities Gain Loss
IndexedDebtSecuritiesGainLoss
|
-60000000 | USD |
CY2019 | cnp |
Indexed Debt Securities Gain Loss
IndexedDebtSecuritiesGainLoss
|
-292000000 | USD |
CY2021 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
339000000 | USD |
CY2020 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
-1428000000 | USD |
CY2019 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
230000000 | USD |
CY2021 | us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
155000000 | USD |
CY2020 | us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
113000000 | USD |
CY2019 | us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
261000000 | USD |
CY2021 | us-gaap |
Pension Contributions
PensionContributions
|
61000000 | USD |
CY2020 | us-gaap |
Pension Contributions
PensionContributions
|
86000000 | USD |
CY2019 | us-gaap |
Pension Contributions
PensionContributions
|
109000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
98000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
-90000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
-226000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
140000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-9000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
52000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
-81000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
-24000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
106000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
175000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
2000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-455000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
|
2295000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
|
107000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
|
22000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Other Current Assets And Liabilities Net
IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet
|
-56000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Other Current Assets And Liabilities Net
IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet
|
-104000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Other Current Assets And Liabilities Net
IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet
|
195000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Other Noncurrent Assets And Liabilities Net
IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet
|
53000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Other Noncurrent Assets And Liabilities Net
IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet
|
-25000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Other Noncurrent Assets And Liabilities Net
IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet
|
-49000000 | USD |
CY2021 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
85000000 | USD |
CY2020 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
35000000 | USD |
CY2019 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
128000000 | USD |
CY2021 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
22000000 | USD |
CY2020 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
1995000000 | USD |
CY2019 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
1638000000 | USD |
CY2021 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
3164000000 | USD |
CY2020 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
2596000000 | USD |
CY2019 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
2506000000 | USD |
CY2021 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
0 | USD |
CY2020 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
0 | USD |
CY2019 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
5991000000 | USD |
CY2019 | cnp |
Repayments Of Revolving Lines Of Credit
RepaymentsOfRevolvingLinesOfCredit
|
135000000 | USD |
CY2021 | us-gaap |
Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
|
1132000000 | USD |
CY2020 | us-gaap |
Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
|
-761000000 | USD |
CY2021 | cnp |
Payments For Merger Related Activities Transaction Costs
PaymentsForMergerRelatedActivitiesTransactionCosts
|
49000000 | USD |
CY2020 | cnp |
Payments For Merger Related Activities Transaction Costs
PaymentsForMergerRelatedActivitiesTransactionCosts
|
0 | USD |
CY2019 | cnp |
Payments For Merger Related Activities Transaction Costs
PaymentsForMergerRelatedActivitiesTransactionCosts
|
0 | USD |
CY2021 | cnp |
Merger Related Transactions Cash Acquired
MergerRelatedTransactionsCashAcquired
|
5000000 | USD |
CY2020 | cnp |
Merger Related Transactions Cash Acquired
MergerRelatedTransactionsCashAcquired
|
0 | USD |
CY2019 | cnp |
Merger Related Transactions Cash Acquired
MergerRelatedTransactionsCashAcquired
|
0 | USD |
CY2021 | us-gaap |
Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
|
0 | USD |
CY2020 | us-gaap |
Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
|
80000000 | USD |
CY2019 | us-gaap |
Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
|
42000000 | USD |
CY2021 | us-gaap |
Proceeds From Sale And Maturity Of Marketable Securities
ProceedsFromSaleAndMaturityOfMarketableSecurities
|
1320000000 | USD |
CY2020 | us-gaap |
Proceeds From Sale And Maturity Of Marketable Securities
ProceedsFromSaleAndMaturityOfMarketableSecurities
|
0 | USD |
CY2019 | us-gaap |
Proceeds From Sale And Maturity Of Marketable Securities
ProceedsFromSaleAndMaturityOfMarketableSecurities
|
0 | USD |
CY2021 | us-gaap |
Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
|
22000000 | USD |
CY2020 | us-gaap |
Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
|
1215000000 | USD |
CY2019 | us-gaap |
Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
|
0 | USD |
CY2021 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-15000000 | USD |
CY2020 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
672000000 | USD |
CY2019 | us-gaap |
Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
|
1891000000 | USD |
CY2020 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-36000000 | USD |
CY2019 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-34000000 | USD |
CY2021 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-1851000000 | USD |
CY2020 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-1265000000 | USD |
CY2019 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-8421000000 | USD |
CY2021 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
27000000 | USD |
CY2020 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
0 | USD |
CY2019 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
0 | USD |
CY2021 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
179000000 | USD |
CY2020 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
0 | USD |
CY2019 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
0 | USD |
CY2021 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
0 | USD |
CY2020 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
1050000000 | USD |
CY2019 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
135000000 | USD |
CY2021 | cnp |
Repayments Of Revolving Lines Of Credit
RepaymentsOfRevolvingLinesOfCredit
|
0 | USD |
CY2020 | cnp |
Repayments Of Revolving Lines Of Credit
RepaymentsOfRevolvingLinesOfCredit
|
1050000000 | USD |
CY2021 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
4493000000 | USD |
CY2020 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
799000000 | USD |
CY2019 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
2916000000 | USD |
CY2021 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
2968000000 | USD |
CY2020 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
1724000000 | USD |
CY2019 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
1302000000 | USD |
CY2021 | us-gaap |
Payment Of Financing And Stock Issuance Costs
PaymentOfFinancingAndStockIssuanceCosts
|
38000000 | USD |
CY2020 | us-gaap |
Payment Of Financing And Stock Issuance Costs
PaymentOfFinancingAndStockIssuanceCosts
|
8000000 | USD |
CY2019 | us-gaap |
Payment Of Financing And Stock Issuance Costs
PaymentOfFinancingAndStockIssuanceCosts
|
20000000 | USD |
CY2021 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
385000000 | USD |
CY2020 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
392000000 | USD |
CY2019 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
577000000 | USD |
CY2021 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
107000000 | USD |
CY2020 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
137000000 | USD |
CY2019 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
118000000 | USD |
CY2021 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
0 | USD |
CY2019 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
0 | USD |
CY2021 | us-gaap |
Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
|
0 | USD |
CY2020 | us-gaap |
Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
|
723000000 | USD |
CY2019 | us-gaap |
Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
|
0 | USD |
CY2021 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-5000000 | USD |
CY2020 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-6000000 | USD |
CY2019 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-14000000 | USD |
CY2021 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
1916000000 | USD |
CY2020 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-834000000 | USD |
CY2019 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
2776000000 | USD |
CY2021 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
87000000 | USD |
CY2020 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
-104000000 | USD |
CY2019 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
-4007000000 | 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 |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
4278000000 | USD |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
254000000 | 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 |
CY2020Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
20000000 | shares |
CY2019Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
20000000 | shares |
CY2021Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
20000000 | shares |
CY2021Q4 | 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 | |
CY2019Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.01 | |
CY2019Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1000000000 | shares |
CY2020Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1000000000 | shares |
CY2021Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1000000000 | shares |
CY2021Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
9415000000 | USD |
CY2020Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
8348000000 | USD |
CY2019Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
8359000000 | USD |
CY2019 | us-gaap |
Proceeds From Divestiture Of Businesses
ProceedsFromDivestitureOfBusinesses
|
0 | USD |
CY2021Q4 | cnp |
Number Of Registrants
NumberOfRegistrants
|
3 | registrant |
CY2021Q4 | cnp |
Number Of Public Utilities
NumberOfPublicUtilities
|
3 | utility |
CY2021 | us-gaap |
Use Of Estimates
UseOfEstimates
|
Use of EstimatesThe preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. | |
CY2021 | us-gaap |
Guarantees Indemnifications And Warranties Policies
GuaranteesIndemnificationsAndWarrantiesPolicies
|
GuaranteesCenterPoint Energy recognizes guarantee obligations at fair value. CenterPoint Energy discloses parent company guarantees of a subsidiary’s obligation when that guarantee results in the exposure of a material obligation of the parent company even if the probability of fulfilling such obligation is considered remote. See Note 16(c) and (d). | |
CY2021Q4 | us-gaap |
Lifo Inventory Amount
LIFOInventoryAmount
|
101000000 | USD |
CY2020Q4 | us-gaap |
Lifo Inventory Amount
LIFOInventoryAmount
|
92000000 | USD |
CY2021Q4 | us-gaap |
Excess Of Replacement Or Current Costs Over Stated Lifo Value
ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue
|
48000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
|
P7Y6M | |
CY2021Q4 | us-gaap |
Finance Lease Right Of Use Asset Before Accumulated Amortization
FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization
|
179000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Right Of Use Asset Accumulated Amortization
FinanceLeaseRightOfUseAssetAccumulatedAmortization
|
0 | USD |
CY2021Q4 | us-gaap |
Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
|
179000000 | USD |
CY2020Q4 | us-gaap |
Finance Lease Right Of Use Asset Before Accumulated Amortization
FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization
|
0 | USD |
CY2020Q4 | us-gaap |
Finance Lease Right Of Use Asset Accumulated Amortization
FinanceLeaseRightOfUseAssetAccumulatedAmortization
|
0 | USD |
CY2020Q4 | us-gaap |
Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
|
0 | USD |
CY2021Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
|
33673000000 | USD |
CY2021Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization
|
10189000000 | USD |
CY2021Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
|
23484000000 | USD |
CY2020Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
|
32514000000 | USD |
CY2020Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization
|
10152000000 | USD |
CY2020Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
|
22362000000 | USD |
CY2021 | us-gaap |
Depreciation
Depreciation
|
1024000000 | USD |
CY2020 | us-gaap |
Depreciation
Depreciation
|
961000000 | USD |
CY2019 | us-gaap |
Depreciation
Depreciation
|
879000000 | USD |
CY2021 | us-gaap |
Amortization Of Regulatory Asset
AmortizationOfRegulatoryAsset
|
213000000 | USD |
CY2020 | us-gaap |
Amortization Of Regulatory Asset
AmortizationOfRegulatoryAsset
|
155000000 | USD |
CY2019 | us-gaap |
Amortization Of Regulatory Asset
AmortizationOfRegulatoryAsset
|
271000000 | USD |
CY2021 | us-gaap |
Adjustment For Amortization
AdjustmentForAmortization
|
79000000 | USD |
CY2020 | us-gaap |
Adjustment For Amortization
AdjustmentForAmortization
|
73000000 | USD |
CY2019 | us-gaap |
Adjustment For Amortization
AdjustmentForAmortization
|
75000000 | USD |
CY2021 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
1316000000 | USD |
CY2020 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
1189000000 | USD |
CY2019 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
1225000000 | USD |
CY2020Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
787000000 | USD |
CY2019Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
539000000 | USD |
CY2021 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
21000000 | USD |
CY2020 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
16000000 | USD |
CY2021 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
-67000000 | USD |
CY2020 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
232000000 | USD |
CY2021Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
741000000 | USD |
CY2020Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
787000000 | USD |
CY2021Q2 | cnp |
Length Of Pipeline
LengthOfPipeline
|
17000 | mi |
CY2020Q4 | us-gaap |
Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
|
782000000 | USD |
CY2021Q4 | cnp |
Preferred Units Exchange Ratio
PreferredUnitsExchangeRatio
|
0.0265 | |
CY2021 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
8256000000 | USD |
CY2021 | cnp |
Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
|
96000000 | USD |
CY2021 | us-gaap |
Revenues
Revenues
|
8352000000 | USD |
CY2020 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
7350000000 | USD |
CY2020 | cnp |
Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
|
68000000 | USD |
CY2020 | us-gaap |
Revenues
Revenues
|
7418000000 | USD |
CY2019 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
7511000000 | USD |
CY2019 | cnp |
Other Revenue Excluding Assessed Tax
OtherRevenueExcludingAssessedTax
|
53000000 | USD |
CY2019 | us-gaap |
Revenues
Revenues
|
7564000000 | USD |
CY2021 | us-gaap |
Lease Income
LeaseIncome
|
7000000 | USD |
CY2020 | us-gaap |
Lease Income
LeaseIncome
|
6000000 | USD |
CY2019 | us-gaap |
Lease Income
LeaseIncome
|
6000000 | 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 |
CY2021Q4 | cnp |
Accounts Receivablefor Contractswith Customers
AccountsReceivableforContractswithCustomers
|
627000000 | USD |
CY2021Q4 | us-gaap |
Unbilled Contracts Receivable
UnbilledContractsReceivable
|
513000000 | USD |
CY2021Q4 | us-gaap |
Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
|
15000000 | USD |
CY2021Q4 | us-gaap |
Contract With Customer Liability
ContractWithCustomerLiability
|
16000000 | USD |
CY2021 | cnp |
Increase Decreasein Accounts Receivableon Contractswith Customers
IncreaseDecreaseinAccountsReceivableonContractswithCustomers
|
23000000 | USD |
CY2021 | cnp |
Increase Decrease In Contract With Customer Asset Other Accrued Unbilled Receivables
IncreaseDecreaseInContractWithCustomerAssetOtherAccruedUnbilledReceivables
|
8000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Contract With Customer Asset
IncreaseDecreaseInContractWithCustomerAsset
|
-12000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Contract With Customer Liability
IncreaseDecreaseInContractWithCustomerLiability
|
-2000000 | USD |
CY2021 | us-gaap |
Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
|
17000000 | USD |
CY2021Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
232000000 | USD |
CY2021Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
549000000 | USD |
CY2021Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
781000000 | USD |
CY2021 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
12000000 | USD |
CY2020 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
24000000 | USD |
CY2019 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
18000000 | USD |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
4697000000 | USD |
CY2021Q4 | us-gaap |
Disposal Group Including Discontinued Operation Goodwill1
DisposalGroupIncludingDiscontinuedOperationGoodwill1
|
398000000 | USD |
CY2021 | us-gaap |
Goodwill Written Off Related To Sale Of Business Unit
GoodwillWrittenOffRelatedToSaleOfBusinessUnit
|
5000000 | USD |
CY2021Q4 | us-gaap |
Goodwill
Goodwill
|
4294000000 | USD |
CY2021Q3 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | USD |
CY2020Q3 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
63000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
19000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
44000000 | 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 |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
6000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
6000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
5000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
5000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
5000000 | USD |
CY2021Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
3716000000 | USD |
CY2021Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
1395000000 | USD |
CY2021Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
2321000000 | USD |
CY2021Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
3174000000 | USD |
CY2021Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
21000000 | USD |
CY2021Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
3153000000 | USD |
CY2020Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
2112000000 | USD |
CY2020Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
18000000 | USD |
CY2020Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
2094000000 | USD |
CY2020Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
3520000000 | USD |
CY2020Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
72000000 | USD |
CY2020Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
3448000000 | USD |
CY2021 | cnp |
Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
|
40000000 | USD |
CY2020 | cnp |
Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
|
31000000 | USD |
CY2019 | cnp |
Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
|
45000000 | USD |
CY2021Q4 | cnp |
Number Of Shares In Common Stock Held By Savings Plan
NumberOfSharesInCommonStockHeldBySavingsPlan
|
8688841 | shares |
CY2021 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
11000000 | USD |
CY2020 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
9000000 | USD |
CY2019 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
7000000 | USD |
CY2021 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions
|
4000000 | USD |
CY2020 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions
|
5000000 | USD |
CY2019 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions
|
12000000 | USD |
CY2021Q4 | cnp |
Percentage Of Investment In Company Common Stock
PercentageOfInvestmentInCompanyCommonStock
|
0.08 | |
CY2021 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
58000000 | USD |
CY2020 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
58000000 | USD |
CY2019 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
58000000 | USD |
CY2021 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
3000000 | USD |
CY2020 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
1000000 | USD |
CY2019 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
2000000 | USD |
CY2021 | us-gaap |
Deferred Compensation Arrangement With Individual Compensation Expense
DeferredCompensationArrangementWithIndividualCompensationExpense
|
3000000 | USD |
CY2020 | us-gaap |
Deferred Compensation Arrangement With Individual Compensation Expense
DeferredCompensationArrangementWithIndividualCompensationExpense
|
4000000 | USD |
CY2019 | us-gaap |
Deferred Compensation Arrangement With Individual Compensation Expense
DeferredCompensationArrangementWithIndividualCompensationExpense
|
4000000 | USD |
CY2021 | cnp |
Maximum Number Of Times Annual Salary Included In Severance Benefits
MaximumNumberOfTimesAnnualSalaryIncludedInSeveranceBenefits
|
3 | salary_severance_benefits |
CY2021 | cnp |
Weather Hedge Term
WeatherHedgeTerm
|
P10Y | |
CY2021 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
50000000 | USD |
CY2021Q4 | us-gaap |
Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
|
7000000 | USD |
CY2020Q4 | us-gaap |
Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
|
7000000 | USD |
CY2021Q4 | us-gaap |
Additional Collateral Aggregate Fair Value
AdditionalCollateralAggregateFairValue
|
7000000 | USD |
CY2020Q4 | us-gaap |
Additional Collateral Aggregate Fair Value
AdditionalCollateralAggregateFairValue
|
3000000 | USD |
CY2020 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
-60000000 | USD |
CY2019 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
-292000000 | USD |
CY2021Q4 | 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 |
CY2021Q1 | cnp |
Proceeds From Merger Interest
ProceedsFromMergerInterest
|
5000000 | USD |
CY2021 | cnp |
Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
|
189000000 | USD |
CY2020 | cnp |
Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
|
229000000 | USD |
CY2019 | cnp |
Totaldistributionsreceivedfrom Enable
TotaldistributionsreceivedfromEnable
|
339000000 | USD |
CY2021Q4 | cnp |
Enable Series A Distribution Rate
EnableSeriesADistributionRate
|
0.10 | |
CY2021Q1 | cnp |
Enable Series A Distribution Rate
EnableSeriesADistributionRate
|
0.085 | |
CY2021Q1 | cnp |
Merger Exchange Ratio
MergerExchangeRatio
|
0.8595 | shares |
CY2021 | us-gaap |
Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
|
-172000000 | USD |
CY2020 | us-gaap |
Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
|
49000000 | USD |
CY2020Q4 | us-gaap |
Preferred Stock Value Outstanding
PreferredStockValueOutstanding
|
2363000000 | USD |
CY2019Q4 | us-gaap |
Preferred Stock Value Outstanding
PreferredStockValueOutstanding
|
1740000000 | USD |
CY2019 | us-gaap |
Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
|
282000000 | USD |
CY2021 | us-gaap |
Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
|
-52000000 | USD |
CY2020 | us-gaap |
Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
|
49000000 | USD |
CY2019 | us-gaap |
Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
|
282000000 | USD |
CY2021Q4 | us-gaap |
Investment Owned At Fair Value
InvestmentOwnedAtFairValue
|
1439000000 | USD |
CY2020Q4 | us-gaap |
Investment Owned At Fair Value
InvestmentOwnedAtFairValue
|
871000000 | USD |
CY2021Q4 | cnp |
Target Annual Yield On Reference Shares
TargetAnnualYieldOnReferenceShares
|
0.02309 | |
CY2021Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
800000 | shares |
CY2020Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
2402400 | shares |
CY2019Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
1777500 | shares |
CY2021Q4 | us-gaap |
Preferred Stock Value Outstanding
PreferredStockValueOutstanding
|
790000000 | USD |
CY2021 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
95000000 | USD |
CY2020 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
144000000 | USD |
CY2019 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
117000000 | USD |
CY2021 | cnp |
Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
|
0 | USD |
CY2020 | cnp |
Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
|
32000000 | USD |
CY2019 | cnp |
Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
|
0 | USD |
CY2021 | us-gaap |
Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
|
95000000 | USD |
CY2020 | us-gaap |
Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
|
176000000 | USD |
CY2019 | us-gaap |
Preferred Stock Dividends And Other Adjustments
PreferredStockDividendsAndOtherAdjustments
|
117000000 | USD |
CY2020Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
90000000 | USD |
CY2019Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
98000000 | USD |
CY2021 | us-gaap |
Oci Equity Method Investment Before Tax
OciEquityMethodInvestmentBeforeTax
|
3000000 | USD |
CY2020 | us-gaap |
Oci Equity Method Investment Before Tax
OciEquityMethodInvestmentBeforeTax
|
-2000000 | USD |
CY2021 | 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 |
CY2020 | 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 |
CY2021 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
|
-7000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
|
-7000000 | USD |
CY2021 | cnp |
Other Comprehensive Income Loss Defined Benefit Plan Gain Loss From Settlement Reclassification Adjustment From Aoci Before Tax
OtherComprehensiveIncomeLossDefinedBenefitPlanGainLossFromSettlementReclassificationAdjustmentFromAOCIBeforeTax
|
-4000000 | USD |
CY2020 | cnp |
Other Comprehensive Income Loss Defined Benefit Plan Gain Loss From Settlement Reclassification Adjustment From Aoci Before Tax
OtherComprehensiveIncomeLossDefinedBenefitPlanGainLossFromSettlementReclassificationAdjustmentFromAOCIBeforeTax
|
0 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
|
2000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
|
0 | USD |
CY2021 | cnp |
Reclassificationofnetdeferredlossfromcashflowhedges3
Reclassificationofnetdeferredlossfromcashflowhedges3
|
0 | USD |
CY2020 | cnp |
Reclassificationofnetdeferredlossfromcashflowhedges3
Reclassificationofnetdeferredlossfromcashflowhedges3
|
19000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
|
7000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
|
4000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
26000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
8000000 | USD |
CY2021Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
64000000 | USD |
CY2020Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
90000000 | USD |
CY2021Q4 | us-gaap |
Deferred Finance Costs Noncurrent Net
DeferredFinanceCostsNoncurrentNet
|
23000000 | USD |
CY2020Q4 | us-gaap |
Deferred Finance Costs Noncurrent Net
DeferredFinanceCostsNoncurrentNet
|
17000000 | USD |
CY2021Q4 | us-gaap |
Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
|
7000000 | USD |
CY2020Q4 | us-gaap |
Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
|
6000000 | USD |
CY2021Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
15558000000 | USD |
CY2021Q4 | us-gaap |
Debt Current
DebtCurrent
|
545000000 | USD |
CY2020Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
11521000000 | USD |
CY2020Q4 | us-gaap |
Debt Current
DebtCurrent
|
1919000000 | USD |
CY2021 | us-gaap |
Debt Instrument Periodic Payment Principal
DebtInstrumentPeriodicPaymentPrincipal
|
211000000 | USD |
CY2021 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
53000000 | USD |
CY2020 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
2000000 | USD |
CY2019 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
0 | USD |
CY2021Q4 | us-gaap |
Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
|
4000000000 | USD |
CY2021 | cnp |
Numberofdaysuntilcommercialpapermaturity
Numberofdaysuntilcommercialpapermaturity
|
60 | day |
CY2020Q4 | us-gaap |
Deferred Tax Assets Derivative Instruments
DeferredTaxAssetsDerivativeInstruments
|
47000000 | USD |
CY2021 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Amortization
IncomeTaxReconciliationNondeductibleExpenseAmortization
|
76000000 | USD |
CY2021 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
39000000 | USD |
CY2020 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Amortization
IncomeTaxReconciliationNondeductibleExpenseAmortization
|
55000000 | USD |
CY2020 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
4000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
120000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
141000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
DeferredTaxAssetsRegulatoryAssetsAndLiabilities
|
396000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
DeferredTaxAssetsRegulatoryAssetsAndLiabilities
|
435000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Other Tax Carryforwards
DeferredTaxAssetsOtherTaxCarryforwards
|
76000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Other Tax Carryforwards
DeferredTaxAssetsOtherTaxCarryforwards
|
103000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
|
130000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
|
152000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Derivative Instruments
DeferredTaxAssetsDerivativeInstruments
|
36000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Investment In Subsidiaries
DeferredTaxAssetsInvestmentInSubsidiaries
|
1000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Investment In Subsidiaries
DeferredTaxAssetsInvestmentInSubsidiaries
|
0 | USD |
CY2021Q4 | cnp |
Deferred Tax Assets Noncurrent Other
DeferredTaxAssetsNoncurrentOther
|
50000000 | USD |
CY2020Q4 | cnp |
Deferred Tax Assets Noncurrent Other
DeferredTaxAssetsNoncurrentOther
|
52000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
11000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
26000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
798000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
904000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
2912000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
2790000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Liabilities Investment In Noncontrolled Affiliates
DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates
|
0 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Investment In Noncontrolled Affiliates
DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates
|
624000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets And Liabilities
DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
|
741000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets And Liabilities
DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
|
325000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Liabilities Investments
DeferredTaxLiabilitiesInvestments
|
693000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Investments
DeferredTaxLiabilitiesInvestments
|
649000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
195000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
0 | USD |
CY2021Q4 | cnp |
Deferred Tax Liabilities Noncurrent Other
DeferredTaxLiabilitiesNoncurrentOther
|
161000000 | USD |
CY2020Q4 | cnp |
Deferred Tax Liabilities Noncurrent Other
DeferredTaxLiabilitiesNoncurrentOther
|
119000000 | USD |
CY2021Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
4702000000 | USD |
CY2020Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
4507000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
3904000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
3603000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
11000000 | USD |
CY2021 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
-15000000 | USD |
CY2020Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
7000000 | USD |
CY2019Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
8000000 | USD |
CY2021 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
0 | USD |
CY2020 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
3000000 | USD |
CY2021 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
4000000 | USD |
CY2020 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
4000000 | USD |
CY2021Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
3000000 | USD |
CY2020Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
7000000 | USD |
CY2021Q4 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
|
4000000 | USD |
CY2021Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
2000000 | USD |
CY2021Q4 | us-gaap |
Income Tax Examination Penalties And Interest Accrued
IncomeTaxExaminationPenaltiesAndInterestAccrued
|
1000000 | USD |
CY2021 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
6000000 | USD |
CY2021 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
3000000 | USD |
CY2021Q4 | cnp |
Numberofsuretybondobligationsoutstanding
Numberofsuretybondobligationsoutstanding
|
53 | |
CY2021Q4 | cnp |
Performanceguaranteeobligationsoutstandingfaceamount
Performanceguaranteeobligationsoutstandingfaceamount
|
569000000 | USD |
CY2021 | cnp |
Percentageofworkyettobecompletedonprojectswithopensuretybonds
Percentageofworkyettobecompletedonprojectswithopensuretybonds
|
0.30 | |
CY2021Q4 | cnp |
Number Of Warranty Obligations Outstanding
NumberOfWarrantyObligationsOutstanding
|
35 | |
CY2021Q4 | cnp |
Warranty Obligations Outstanding Face Amount
WarrantyObligationsOutstandingFaceAmount
|
550000000 | USD |
CY2021Q4 | cnp |
Energy Savings Commitments Not Guaranteed
EnergySavingsCommitmentsNotGuaranteed
|
1200000000 | USD |
CY2021Q4 | us-gaap |
Guarantee Obligations Maximum Exposure
GuaranteeObligationsMaximumExposure
|
514000000 | USD |
CY2021 | cnp |
Number Of Owned Coal Ash Ponds
NumberOfOwnedCoalAshPonds
|
3 | ashPond |
CY2020 | cnp |
Noncashtransactionbeneficialconversionfeature
Noncashtransactionbeneficialconversionfeature
|
32000000 | USD |
CY2021 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
668000000 | USD |
CY2020 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
483000000 | USD |
CY2019 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
515000000 | USD |
CY2021 | cnp |
Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
|
0 | USD |
CY2020 | cnp |
Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
|
32000000 | USD |
CY2019 | cnp |
Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
|
0 | USD |
CY2021 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
0 | USD |
CY2020 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
0 | USD |
CY2019 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
0 | USD |
CY2021 | us-gaap |
Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
|
573000000 | USD |
CY2021 | us-gaap |
Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
|
573000000 | USD |
CY2020 | us-gaap |
Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
|
307000000 | USD |
CY2020 | us-gaap |
Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
|
307000000 | USD |
CY2019 | us-gaap |
Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
|
398000000 | USD |
CY2019 | us-gaap |
Net Income Loss From Continuing Operations Available To Common Shareholders Diluted
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted
|
398000000 | USD |
CY2021 | us-gaap |
Net Income Loss From Discontinued Operations Available To Common Shareholders Basic
NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic
|
818000000 | USD |
CY2021 | us-gaap |
Net Income Loss From Discontinued Operations Available To Common Shareholders Diluted
NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersDiluted
|
818000000 | USD |
CY2020 | us-gaap |
Net Income Loss From Discontinued Operations Available To Common Shareholders Basic
NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic
|
-1256000000 | USD |
CY2020 | us-gaap |
Net Income Loss From Discontinued Operations Available To Common Shareholders Diluted
NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersDiluted
|
-1256000000 | USD |
CY2019 | us-gaap |
Net Income Loss From Discontinued Operations Available To Common Shareholders Diluted
NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersDiluted
|
276000000 | USD |
CY2019 | us-gaap |
Net Income Loss From Discontinued Operations Available To Common Shareholders Basic
NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic
|
276000000 | USD |
CY2021 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
1391000000 | USD |
CY2021 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
1391000000 | USD |
CY2020 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-949000000 | USD |
CY2020 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
-949000000 | USD |
CY2019 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
674000000 | USD |
CY2019 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
674000000 | USD |
CY2019 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.79 | |
CY2021 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
592933000 | shares |
CY2020 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
531031000 | shares |
CY2019 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
502050000 | shares |
CY2021 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
609938000 | shares |
CY2020 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
531031000 | shares |
CY2019 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
505157000 | shares |
CY2021 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.97 | |
CY2020 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.58 | |
CY2019 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.79 | |
CY2021 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
1.38 | |
CY2020 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-2.37 | |
CY2019 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
0.55 | |
CY2021 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.35 | |
CY2020 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-1.79 | |
CY2019 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.34 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.94 | |
CY2020 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.58 | |
CY2021 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
1.34 | |
CY2020 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-2.37 | |
CY2019 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
0.54 | |
CY2021 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.28 | |
CY2020 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-1.79 | |
CY2019 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.33 | |
CY2021 | us-gaap |
Net Income Loss
NetIncomeLoss
|
1486000000 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-773000000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
791000000 | USD |
CY2021 | cnp |
Interest Income From Securitization Bonds
InterestIncomeFromSecuritizationBonds
|
1000000 | USD |
CY2020 | cnp |
Interest Income From Securitization Bonds
InterestIncomeFromSecuritizationBonds
|
1000000 | USD |
CY2019 | cnp |
Interest Income From Securitization Bonds
InterestIncomeFromSecuritizationBonds
|
5000000 | USD |
CY2021Q4 | us-gaap |
Assets
Assets
|
37679000000 | USD |
CY2020Q4 | us-gaap |
Assets
Assets
|
33471000000 | USD |
CY2021 | cnp |
Capital Expendituresfor Long Lived Assets
CapitalExpendituresforLongLivedAssets
|
3399000000 | USD |
CY2020 | cnp |
Capital Expendituresfor Long Lived Assets
CapitalExpendituresforLongLivedAssets
|
2536000000 | USD |
CY2019 | cnp |
Capital Expendituresfor Long Lived Assets
CapitalExpendituresforLongLivedAssets
|
2587000000 | USD |
CY2021 | us-gaap |
Interest Paid Net
InterestPaidNet
|
489000000 | USD |
CY2020 | us-gaap |
Interest Paid Net
InterestPaidNet
|
471000000 | USD |
CY2019 | us-gaap |
Interest Paid Net
InterestPaidNet
|
436000000 | USD |
CY2021 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-46000000 | USD |
CY2020 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
143000000 | USD |
CY2019 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
155000000 | USD |
CY2021 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
370000000 | USD |
CY2020 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
153000000 | USD |
CY2019 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
236000000 | USD |
CY2021 | cnp |
Rou Asset Obtained In Exchangefor Operating Lease Liability Including Transition Impactof Asc842 Adoption
ROUAssetObtainedInExchangeforOperatingLeaseLiabilityIncludingTransitionImpactofASC842Adoption
|
2000000 | USD |
CY2020 | cnp |
Rou Asset Obtained In Exchangefor Operating Lease Liability Including Transition Impactof Asc842 Adoption
ROUAssetObtainedInExchangeforOperatingLeaseLiabilityIncludingTransitionImpactofASC842Adoption
|
15000000 | USD |
CY2019 | cnp |
Rou Asset Obtained In Exchangefor Operating Lease Liability Including Transition Impactof Asc842 Adoption
ROUAssetObtainedInExchangeforOperatingLeaseLiabilityIncludingTransitionImpactofASC842Adoption
|
44000000 | USD |
CY2021 | cnp |
Noncashtransactionbeneficialconversionfeature
Noncashtransactionbeneficialconversionfeature
|
0 | USD |
CY2020 | cnp |
Noncashtransactionbeneficialconversionfeature
Noncashtransactionbeneficialconversionfeature
|
32000000 | USD |
CY2019 | cnp |
Noncashtransactionbeneficialconversionfeature
Noncashtransactionbeneficialconversionfeature
|
0 | USD |
CY2021 | cnp |
Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
|
0 | USD |
CY2020 | cnp |
Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
|
32000000 | USD |
CY2019 | cnp |
Amortizationof Beneficial Conversion Feature
AmortizationofBeneficialConversionFeature
|
0 | USD |
CY2021 | cnp |
Noncash Capital Distribution Associated With Related Party
NoncashCapitalDistributionAssociatedWithRelatedParty
|
0 | USD |
CY2020 | cnp |
Noncash Capital Distribution Associated With Related Party
NoncashCapitalDistributionAssociatedWithRelatedParty
|
0 | USD |
CY2019 | cnp |
Noncash Capital Distribution Associated With Related Party
NoncashCapitalDistributionAssociatedWithRelatedParty
|
0 | USD |
CY2021Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
230000000 | USD |
CY2020Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
147000000 | USD |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
254000000 | USD |
CY2020Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
167000000 | USD |
CY2021 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
8000000 | USD |
CY2020 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
9000000 | USD |
CY2021 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
119000000 | USD |
CY2020 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
14000000 | USD |
CY2021 | us-gaap |
Lease Cost
LeaseCost
|
127000000 | USD |
CY2020 | us-gaap |
Lease Cost
LeaseCost
|
23000000 | USD |
CY2021 | us-gaap |
Operating Lease Lease Income Lease Payments
OperatingLeaseLeaseIncomeLeasePayments
|
6000000 | USD |
CY2020 | us-gaap |
Operating Lease Lease Income Lease Payments
OperatingLeaseLeaseIncomeLeasePayments
|
5000000 | USD |
CY2021 | us-gaap |
Operating Lease Variable Lease Income
OperatingLeaseVariableLeaseIncome
|
1000000 | USD |
CY2020 | us-gaap |
Operating Lease Variable Lease Income
OperatingLeaseVariableLeaseIncome
|
1000000 | USD |
CY2021 | us-gaap |
Operating Lease Lease Income
OperatingLeaseLeaseIncome
|
7000000 | USD |
CY2020 | us-gaap |
Operating Lease Lease Income
OperatingLeaseLeaseIncome
|
6000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
22000000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
31000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
|
179000000 | USD |
CY2020Q4 | us-gaap |
Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
|
0 | USD |
CY2021Q4 | cnp |
Lease Right Of Use Asset
LeaseRightOfUseAsset
|
201000000 | USD |
CY2020Q4 | cnp |
Lease Right Of Use Asset
LeaseRightOfUseAsset
|
31000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
6000000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
6000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
17000000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
26000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
23000000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
32000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P6Y2M12D | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P6Y | |
CY2021Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.0310 | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.0314 | |
CY2021Q4 | us-gaap |
Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
|
P7Y6M | |
CY2021Q4 | us-gaap |
Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
|
0.0221 | |
CY2020Q4 | us-gaap |
Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
|
0 | |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
6000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
5000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
3000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
3000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
3000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
5000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
25000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
2000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
23000000 | USD |
CY2021Q4 | us-gaap |
Lessor Direct Financing Lease Lease Not Yet Commenced Assumption And Judgment Value Of Underlying Asset Amount
LessorDirectFinancingLeaseLeaseNotYetCommencedAssumptionAndJudgmentValueOfUnderlyingAssetAmount
|
496000000 | USD |
CY2021Q4 | cnp |
Lessor Direct Financing Lease Lease Not Yet Commenced Amount Of Megawatts
LessorDirectFinancingLeaseLeaseNotYetCommencedAmountOfMegawatts
|
380 | MW |
CY2021Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Next Twelve Months
LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths
|
5000000 | USD |
CY2021Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Two Years
LessorOperatingLeasePaymentsToBeReceivedTwoYears
|
5000000 | USD |
CY2021Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Three Years
LessorOperatingLeasePaymentsToBeReceivedThreeYears
|
5000000 | USD |
CY2021Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Four Years
LessorOperatingLeasePaymentsToBeReceivedFourYears
|
6000000 | USD |
CY2021Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Five Years
LessorOperatingLeasePaymentsToBeReceivedFiveYears
|
6000000 | USD |
CY2021Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Thereafter
LessorOperatingLeasePaymentsToBeReceivedThereafter
|
142000000 | USD |
CY2021Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received
LessorOperatingLeasePaymentsToBeReceived
|
169000000 | USD |
CY2021 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
6000000 | USD |
CY2021 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
179000000 | USD |
CY2021 | dei |
Auditor Firm
AuditorFirmId
|
34 |