$CNP
CENTERPOINT ENERGY INC

2010 Q4 Form 10-K Financial Statement

#000113031012000011 Filed on February 29, 2012

View on sec.gov

Income Statement

Concept 2010 Q4 2010 Q3 2010 Q2
Revenue $2.098B $1.908B $1.756B
YoY Change -8.74% 21.07% 7.07%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $204.0M $243.0M $217.0M
YoY Change 12.71% 16.83% 15.43%
% of Gross Profit
Operating Expenses $1.796B $1.581B $1.493B
YoY Change -10.2% 22.65% 7.64%
Operating Profit $302.0M $327.0M $263.0M
YoY Change
Interest Expense -$143.0M -$131.0M -$140.0M
YoY Change -7.74% -9.03% -1.41%
% of Operating Profit -47.35% -40.06% -53.23%
Other Income/Expense, Net $5.000M -$128.0M $3.000M
YoY Change 0.0% -1522.22% -83.33%
Pretax Income $164.0M $199.0M $126.0M
YoY Change 7.89% 30.92% -2.33%
Income Tax $40.00M $76.00M $45.00M
% Of Pretax Income 24.39% 38.19% 35.71%
Net Earnings $124.0M $123.0M $81.00M
YoY Change 18.1% 7.89% -5.81%
Net Earnings / Revenue 5.91% 6.45% 4.61%
Basic Earnings Per Share $0.29 $0.29 $0.20
Diluted Earnings Per Share $0.29 $0.29 $0.20
COMMON SHARES
Basic Shares Outstanding 422.2M shares
Diluted Shares Outstanding 425.0M shares

Balance Sheet

Concept 2010 Q4 2010 Q3 2010 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments $566.0M $434.0M $899.0M
YoY Change -45.58% 25.07% 130.51%
Cash & Equivalents $199.0M $99.00M $583.0M
Short-Term Investments $367.0M $335.0M $316.0M
Other Short-Term Assets $274.0M $501.0M $434.0M
YoY Change -63.32% -10.22% -29.77%
Inventory $375.0M $404.0M $303.0M
Prepaid Expenses
Receivables $835.0M $691.0M $716.0M
Other Receivables $138.0M $113.0M $0.00
Total Short-Term Assets $2.582B $2.143B $2.352B
YoY Change -11.09% 7.42% 21.99%
LONG-TERM ASSETS
Property, Plant & Equipment $11.73B $11.42B $11.22B
YoY Change 8.75% 8.27% 6.58%
Goodwill $1.696B
YoY Change
Intangibles
YoY Change
Long-Term Investments $468.0M $480.0M $479.0M
YoY Change 1.08% 1.91% 36.08%
Other Assets $172.0M $3.660B $3.777B
YoY Change -95.61% -7.18% -3.0%
Total Long-Term Assets $5.797B $17.26B $17.17B
YoY Change -65.64% 3.59% 2.26%
TOTAL ASSETS
Total Short-Term Assets $2.582B $2.143B $2.352B
Total Long-Term Assets $5.797B $17.26B $17.17B
Total Assets $20.11B $19.40B $19.52B
YoY Change 1.71% 4.0% 4.3%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $667.0M $384.0M $418.0M
YoY Change 2.93% 9.4% 15.15%
Accrued Expenses $171.0M $132.0M $193.0M
YoY Change -5.52% -5.04% 1.05%
Deferred Revenue
YoY Change
Short-Term Debt $53.00M $73.00M $32.00M
YoY Change -3.64% 82.5% -57.33%
Long-Term Debt Due $428.0M $978.0M $1.167B
YoY Change -52.6% 74.64% 239.24%
Total Short-Term Liabilities $2.620B $2.881B $3.032B
YoY Change -13.76% 24.61% 44.79%
LONG-TERM LIABILITIES
Long-Term Debt $9.001B $8.267B $8.410B
YoY Change -1.29% -6.34% -12.68%
Other Long-Term Liabilities $447.0M $2.272B $2.232B
YoY Change -79.54% 5.63% 4.89%
Total Long-Term Liabilities $5.292B $10.54B $10.64B
YoY Change -53.18% -4.0% -9.5%
TOTAL LIABILITIES
Total Short-Term Liabilities $2.620B $2.881B $3.032B
Total Long-Term Liabilities $5.292B $10.54B $10.64B
Total Liabilities $7.912B $16.27B $16.46B
YoY Change -53.82% 1.28% -0.12%
SHAREHOLDERS EQUITY
Retained Earnings -$789.0M
YoY Change
Common Stock $4.000M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares 166.0 shares
Shareholders Equity $3.198B $3.129B $3.061B
YoY Change
Total Liabilities & Shareholders Equity $20.11B $19.40B $19.52B
YoY Change 1.71% 4.0% 4.3%

Cashflow Statement

Concept 2010 Q4 2010 Q3 2010 Q2
OPERATING ACTIVITIES
Net Income $124.0M $123.0M $81.00M
YoY Change 18.1% 7.89% -5.81%
Depreciation, Depletion And Amortization $204.0M $243.0M $217.0M
YoY Change 12.71% 16.83% 15.43%
Cash From Operating Activities $403.0M $165.0M $383.0M
YoY Change -0.25% -56.69% -38.52%
INVESTING ACTIVITIES
Capital Expenditures -$456.0M -$326.0M -$469.0M
YoY Change 29.91% 6.89% 92.21%
Acquisitions
YoY Change
Other Investing Activities $50.00M $31.00M $53.00M
YoY Change 35.14% -86.34% 5200.0%
Cash From Investing Activities -$406.0M -$295.0M -$416.0M
YoY Change 29.3% 278.21% 71.19%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 103.0M -354.0M 287.0M
YoY Change -82.51% -9.92% -197.62%
NET CHANGE
Cash From Operating Activities 403.0M 165.0M 383.0M
Cash From Investing Activities -406.0M -295.0M -416.0M
Cash From Financing Activities 103.0M -354.0M 287.0M
Net Change In Cash 100.0M -484.0M 254.0M
YoY Change -85.27% 437.78% 195.35%
FREE CASH FLOW
Cash From Operating Activities $403.0M $165.0M $383.0M
Capital Expenditures -$456.0M -$326.0M -$469.0M
Free Cash Flow $859.0M $491.0M $852.0M
YoY Change 13.77% -28.43% -1.73%

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CY2011 us-gaap Electric Utility Revenue
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2337000000 USD
CY2010 us-gaap Electric Utility Revenue
ElectricUtilityRevenue
2205000000 USD
CY2011 us-gaap Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
5000000 USD
CY2010 us-gaap Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
9000000 USD
CY2009 us-gaap Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
4000000 USD
CY2011 us-gaap Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition
1.7 Years
CY2010 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
6000000 USD
CY2009 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
6000000 USD
CY2011 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
7000000 USD
CY2011 us-gaap Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
8000000 USD
CY2010 us-gaap Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
5000000 USD
CY2009 us-gaap Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
6000000 USD
CY2011Q4 us-gaap Energy Related Inventory Gas Stored Underground
EnergyRelatedInventoryGasStoredUnderground
187000000 USD
CY2010Q4 us-gaap Energy Related Inventory Gas Stored Underground
EnergyRelatedInventoryGasStoredUnderground
211000000 USD
CY2011Q3 us-gaap Extraordinary Item Gain Or Loss Net Of Tax Attributable To Reporting Entity
ExtraordinaryItemGainOrLossNetOfTaxAttributableToReportingEntity
587000000 USD
CY2005Q4 us-gaap Extraordinary Item Gain Or Loss Net Of Tax Attributable To Reporting Entity
ExtraordinaryItemGainOrLossNetOfTaxAttributableToReportingEntity
-947000000 USD
CY2009 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
0 USD
CY2011 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
587000000 USD
CY2010 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
0 USD
CY2011Q3 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
587000000 USD
CY2011Q2 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
0 USD
CY2011Q4 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
0 USD
CY2011Q1 us-gaap Extraordinary Item Net Of Tax
ExtraordinaryItemNetOfTax
0 USD
CY2011Q3 us-gaap Extraordinary Items Gross
ExtraordinaryItemsGross
921000000 USD
CY2010Q4 us-gaap Gain Loss On Sale Of Property
GainLossOnSaleOfProperty
21000000 USD
CY2010Q4 us-gaap Goodwill
Goodwill
1696000000 USD
CY2011Q4 us-gaap Goodwill
Goodwill
1696000000 USD
CY2011 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
770000000 USD
CY2010 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
442000000 USD
CY2009 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
372000000 USD
CY2011Q3 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
386000000 USD
CY2011Q4 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
117000000 USD
CY2011Q1 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
148000000 USD
CY2011Q2 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple
119000000 USD
CY2009 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Basic Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerBasicShare
1.02
CY2010 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Basic Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerBasicShare
1.08
CY2011 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Basic Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerBasicShare
1.81
CY2011Q3 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Basic Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerBasicShare
0.90
CY2011Q4 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Basic Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerBasicShare
0.27
CY2011Q1 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Basic Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerBasicShare
0.35
CY2011Q2 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Basic Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerBasicShare
0.28
CY2009 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Diluted Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerDilutedShare
1.01
CY2011 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Diluted Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerDilutedShare
1.80
CY2010 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Diluted Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerDilutedShare
1.07
CY2011Q4 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Diluted Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerDilutedShare
0.27
CY2011Q2 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Diluted Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerDilutedShare
0.28
CY2011Q3 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Diluted Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerDilutedShare
0.90
CY2011Q1 us-gaap Income Loss Before Extraordinary Items And Cumulative Effect Of Change In Accounting Principle Per Diluted Share
IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciplePerDilutedShare
0.35
CY2010 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
705000000 USD
CY2011 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
1174000000 USD
CY2009 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
548000000 USD
CY2009 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
548000000 USD
CY2011 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
1174000000 USD
CY2010 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
705000000 USD
CY2010 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
29000000 USD
CY2011 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
30000000 USD
CY2009 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
15000000 USD
CY2009 us-gaap Income Loss From Equity Method Investments Net Of Dividends Or Distributions
IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions
3000000 USD
CY2010 us-gaap Income Loss From Equity Method Investments Net Of Dividends Or Distributions
IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions
-13000000 USD
CY2011 us-gaap Income Loss From Equity Method Investments Net Of Dividends Or Distributions
IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions
-8000000 USD
CY2010 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
0.00
CY2009 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
0.00
CY2011 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
1.38
CY2011Q4 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
0.00
CY2011Q1 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
0.00
CY2011Q2 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
0.00
CY2011Q3 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Basic Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare
1.38
CY2009 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
0.00
CY2010 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
0.00
CY2011 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
1.37
CY2011Q4 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
0.00
CY2011Q1 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
0.00
CY2011Q3 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
1.37
CY2011Q2 us-gaap Income Loss From Extraordinary Items Net Of Tax Per Diluted Share
IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare
0.00
CY2011Q4 us-gaap Income Tax Examination Increase Decrease In Liability From Prior Year
IncomeTaxExaminationIncreaseDecreaseInLiabilityFromPriorYear
32000000 USD
CY2011 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
404000000 USD
CY2010 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
263000000 USD
CY2009 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
176000000 USD
CY2009 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
192000000 USD
CY2011 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
411000000 USD
CY2010 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
247000000 USD
CY2009 us-gaap Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
-22000000 USD
CY2011 us-gaap Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
-18000000 USD
CY2010 us-gaap Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
-13000000 USD
CY2010 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
2000000 USD
CY2009 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
18000000 USD
CY2011 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
22000000 USD
CY2010 us-gaap Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
7000000 USD
CY2009 us-gaap Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
7000000 USD
CY2011 us-gaap Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
6000000 USD
CY2011 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
-205000000 USD
CY2009 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
-9000000 USD
CY2010 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
207000000 USD
CY2010Q4 us-gaap Income Taxes Receivable
IncomeTaxesReceivable
138000000 USD
CY2011Q4 us-gaap Income Taxes Receivable
IncomeTaxesReceivable
0 USD
CY2009 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-237000000 USD
CY2011 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-81000000 USD
CY2010 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-34000000 USD
CY2009 us-gaap Increase Decrease In Commodity Contract Assets And Liabilities
IncreaseDecreaseInCommodityContractAssetsAndLiabilities
-28000000 USD
CY2010 us-gaap Increase Decrease In Commodity Contract Assets And Liabilities
IncreaseDecreaseInCommodityContractAssetsAndLiabilities
5000000 USD
CY2011 us-gaap Increase Decrease In Commodity Contract Assets And Liabilities
IncreaseDecreaseInCommodityContractAssetsAndLiabilities
13000000 USD
CY2011 us-gaap Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
-138000000 USD
CY2009 us-gaap Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
0 USD
CY2010 us-gaap Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
138000000 USD
CY2010 us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
54000000 USD
CY2009 us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
-236000000 USD
CY2011 us-gaap Increase Decrease In Inventories
IncreaseDecreaseInInventories
-11000000 USD
CY2011 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-12000000 USD
CY2010 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
2000000 USD
CY2009 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-27000000 USD
CY2009 us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
6000000 USD
CY2010 us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
-1000000 USD
CY2011 us-gaap Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
18000000 USD
CY2010 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
8000000 USD
CY2009 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
1000000 USD
CY2011 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
9000000 USD
CY2009 us-gaap Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
-16000000 USD
CY2010 us-gaap Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
2000000 USD
CY2011 us-gaap Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
-24000000 USD
CY2009 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
3000000 USD
CY2010 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
4000000 USD
CY2011 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
-33000000 USD
CY2010 us-gaap Increase Decrease In Over Under Energy Recovery
IncreaseDecreaseInOverUnderEnergyRecovery
9000000 USD
CY2011 us-gaap Increase Decrease In Over Under Energy Recovery
IncreaseDecreaseInOverUnderEnergyRecovery
70000000 USD
CY2009 us-gaap Increase Decrease In Over Under Energy Recovery
IncreaseDecreaseInOverUnderEnergyRecovery
5000000 USD
CY2010 us-gaap Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
-14000000 USD
CY2009 us-gaap Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
0 USD
CY2011 us-gaap Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
-31000000 USD
CY2010 us-gaap Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
5000000 USD
CY2011 us-gaap Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
3000000 USD
CY2009 us-gaap Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
-26000000 USD
CY2010 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
470000 shares
CY2009 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
451000 shares
CY2011 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
347000 shares
CY2011 us-gaap Interest And Debt Expense
InterestAndDebtExpense
456000000 USD
CY2010 us-gaap Interest And Debt Expense
InterestAndDebtExpense
481000000 USD
CY2009 us-gaap Interest And Debt Expense
InterestAndDebtExpense
513000000 USD
CY2010 us-gaap Interest Paid Net
InterestPaidNet
609000000 USD
CY2009 us-gaap Interest Paid Net
InterestPaidNet
624000000 USD
CY2011 us-gaap Interest Paid Net
InterestPaidNet
565000000 USD
CY2011Q4 us-gaap Interest Payable Current
InterestPayableCurrent
164000000 USD
CY2010Q4 us-gaap Interest Payable Current
InterestPayableCurrent
171000000 USD
CY2010Q4 us-gaap Inventory Adjustments
InventoryAdjustments
6000000 USD
CY2011Q4 us-gaap Inventory Adjustments
InventoryAdjustments
11000000 USD
CY2010Q4 us-gaap Inventory Net
InventoryNet
375000000 USD
CY2011Q4 us-gaap Inventory Net
InventoryNet
353000000 USD
CY2011Q4 us-gaap Inventory Raw Materials And Supplies Net Of Reserves
InventoryRawMaterialsAndSuppliesNetOfReserves
166000000 USD
CY2010Q4 us-gaap Inventory Raw Materials And Supplies Net Of Reserves
InventoryRawMaterialsAndSuppliesNetOfReserves
164000000 USD
CY2011 us-gaap Inventory Write Down
InventoryWriteDown
11000000 USD
CY2009 us-gaap Inventory Write Down
InventoryWriteDown
6000000 USD
CY2010 us-gaap Inventory Write Down
InventoryWriteDown
6000000 USD
CY2010Q4 us-gaap Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
54000000 USD
CY2011Q4 us-gaap Investments Fair Value Disclosure
InvestmentsFairValueDisclosure
56000000 USD
CY2011Q4 us-gaap Investments In Affiliates Subsidiaries Associates And Joint Ventures
InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
472000000 USD
CY2010Q4 us-gaap Investments In Affiliates Subsidiaries Associates And Joint Ventures
InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
468000000 USD
CY2011 us-gaap Lease And Rental Expense
LeaseAndRentalExpense
43000000 USD
CY2009 us-gaap Lease And Rental Expense
LeaseAndRentalExpense
37000000 USD
CY2010 us-gaap Lease And Rental Expense
LeaseAndRentalExpense
77000000 USD
CY2011Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
21703000000 USD
CY2010Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
20111000000 USD
CY2011Q4 us-gaap Liabilities Current
LiabilitiesCurrent
2593000000 USD
CY2010Q4 us-gaap Liabilities Current
LiabilitiesCurrent
2620000000 USD
CY2011Q4 us-gaap Liabilities Noncurrent
LiabilitiesNoncurrent
6247000000 USD
CY2010Q4 us-gaap Liabilities Noncurrent
LiabilitiesNoncurrent
5292000000 USD
CY2010Q4 us-gaap Line Of Credit Facility Amount Outstanding
LineOfCreditFacilityAmountOutstanding
0 USD
CY2011Q4 us-gaap Line Of Credit Facility Amount Outstanding
LineOfCreditFacilityAmountOutstanding
0 USD
CY2010Q4 us-gaap Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
2360000000 USD
CY2011Q4 us-gaap Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
2450000000 USD
CY2011Q4 us-gaap Long Term Debt Current
LongTermDebtCurrent
484000000 USD
CY2010Q4 us-gaap Long Term Debt Current
LongTermDebtCurrent
428000000 USD
CY2011Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
353000000 USD
CY2011Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
875000000 USD
CY2011Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
669000000 USD
CY2011Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
1195000000 USD
CY2011Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
1145000000 USD
CY2010Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
9001000000 USD
CY2011Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
8641000000 USD
CY2010Q4 us-gaap Longterm Commercial Paper Current And Noncurrent
LongtermCommercialPaperCurrentAndNoncurrent
183000000 USD
CY2011Q4 us-gaap Longterm Commercial Paper Current And Noncurrent
LongtermCommercialPaperCurrentAndNoncurrent
285000000 USD
CY2011 us-gaap Loss Contingency Damages Sought
LossContingencyDamagesSought
in excess of $1 billion
CY2010Q4 us-gaap Marketable Securities Current
MarketableSecuritiesCurrent
367000000 USD
CY2011Q4 us-gaap Marketable Securities Current
MarketableSecuritiesCurrent
386000000 USD
CY2009Q4 us-gaap Marketable Securities Current
MarketableSecuritiesCurrent
300000000 USD
CY2008Q4 us-gaap Marketable Securities Current
MarketableSecuritiesCurrent
218000000 USD
CY2011 us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
19000000 USD
CY2009 us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
82000000 USD
CY2010 us-gaap Marketable Securities Gain Loss
MarketableSecuritiesGainLoss
67000000 USD
CY2010 us-gaap Marketable Securities Unrealized Gain Loss
MarketableSecuritiesUnrealizedGainLoss
67000000 USD
CY2011 us-gaap Marketable Securities Unrealized Gain Loss
MarketableSecuritiesUnrealizedGainLoss
19000000 USD
CY2009 us-gaap Marketable Securities Unrealized Gain Loss
MarketableSecuritiesUnrealizedGainLoss
82000000 USD
CY2010 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-507000000 USD
CY2009 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-372000000 USD
CY2011 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-661000000 USD
CY2009 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-896000000 USD
CY2010 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-1420000000 USD
CY2011 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-1206000000 USD
CY2010 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
1386000000 USD
CY2009 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
1841000000 USD
CY2011 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
1888000000 USD
CY2009 us-gaap Net Income Loss
NetIncomeLoss
372000000 USD
CY2011 us-gaap Net Income Loss
NetIncomeLoss
1357000000 USD
CY2010 us-gaap Net Income Loss
NetIncomeLoss
442000000 USD
CY2011Q3 us-gaap Net Income Loss
NetIncomeLoss
973000000 USD
CY2011Q1 us-gaap Net Income Loss
NetIncomeLoss
148000000 USD
CY2011Q2 us-gaap Net Income Loss
NetIncomeLoss
119000000 USD
CY2011Q4 us-gaap Net Income Loss
NetIncomeLoss
117000000 USD
CY2010Q3 us-gaap Net Income Loss
NetIncomeLoss
123000000 USD
CY2010Q1 us-gaap Net Income Loss
NetIncomeLoss
114000000 USD
CY2010Q4 us-gaap Net Income Loss
NetIncomeLoss
124000000 USD
CY2010Q2 us-gaap Net Income Loss
NetIncomeLoss
81000000 USD
CY2010Q4 us-gaap Net Regulatory Assets
NetRegulatoryAssets
2457000000 USD
CY2011Q4 us-gaap Net Regulatory Assets
NetRegulatoryAssets
3580000000 USD
CY2009 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-576000000 USD
CY2010 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-544000000 USD
CY2011 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-124000000 USD
CY2009 us-gaap Operating Expenses
OperatingExpenses
7157000000 USD
CY2011 us-gaap Operating Expenses
OperatingExpenses
7152000000 USD
CY2010 us-gaap Operating Expenses
OperatingExpenses
7536000000 USD
CY2009 us-gaap Operating Income Loss
OperatingIncomeLoss
1124000000 USD
CY2011 us-gaap Operating Income Loss
OperatingIncomeLoss
1298000000 USD
CY2010 us-gaap Operating Income Loss
OperatingIncomeLoss
1249000000 USD
CY2011Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
357000000 USD
CY2011Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
364000000 USD
CY2011Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
274000000 USD
CY2011Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
303000000 USD
CY2010Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
263000000 USD
CY2010Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
357000000 USD
CY2010Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
327000000 USD
CY2010Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
302000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
54000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
14000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
4000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
4000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
7000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
9000000 USD
CY2011Q4 us-gaap Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
16000000 USD
CY2011Q4 us-gaap Operating Loss Carryforwards
OperatingLossCarryforwards
442000000 USD
CY2011Q4 us-gaap Other Assets Current
OtherAssetsCurrent
192000000 USD
CY2010Q4 us-gaap Other Assets Current
OtherAssetsCurrent
274000000 USD
CY2011Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
157000000 USD
CY2010Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
172000000 USD
CY2011 us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease
-16000000 USD
CY2010 us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease
6000000 USD
CY2009 us-gaap Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease
OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease
7000000 USD
CY2011 us-gaap Other Comprehensive Income Defined Benefit Plans Tax
OtherComprehensiveIncomeDefinedBenefitPlansTax
7000000 USD
CY2010 us-gaap Other Comprehensive Income Defined Benefit Plans Tax
OtherComprehensiveIncomeDefinedBenefitPlansTax
5000000 USD
CY2009 us-gaap Other Comprehensive Income Defined Benefit Plans Tax
OtherComprehensiveIncomeDefinedBenefitPlansTax
2000000 USD
CY2011 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-16000000 USD
CY2009 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
7000000 USD
CY2010 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
7000000 USD
CY2011 us-gaap Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax
OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax
0 USD
CY2010 us-gaap Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax
OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax
-1000000 USD
CY2009 us-gaap Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax
OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax
0 USD
CY2011 us-gaap Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Tax
OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax
0 USD
CY2009 us-gaap Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Tax
OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax
0 USD
CY2010 us-gaap Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Tax
OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax
0 USD
CY2010Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
438000000 USD
CY2011Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
366000000 USD
CY2011Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
305000000 USD
CY2010Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
447000000 USD
CY2011Q4 us-gaap Other Long Term Debt Current
OtherLongTermDebtCurrent
46000000 USD
CY2010Q4 us-gaap Other Long Term Debt Current
OtherLongTermDebtCurrent
19000000 USD
CY2010Q4 us-gaap Other Long Term Debt Noncurrent
OtherLongTermDebtNoncurrent
6479000000 USD
CY2011Q4 us-gaap Other Long Term Debt Noncurrent
OtherLongTermDebtNoncurrent
6426000000 USD
CY2010 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
12000000 USD
CY2009 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
39000000 USD
CY2011 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
23000000 USD
CY2011 us-gaap Other Tax Carryforward Expiration Dates
OtherTaxCarryforwardExpirationDates
2017
CY2010 us-gaap Payments For Advance To Affiliate
PaymentsForAdvanceToAffiliate
0 USD
CY2009 us-gaap Payments For Advance To Affiliate
PaymentsForAdvanceToAffiliate
-323000000 USD
CY2011 us-gaap Payments For Advance To Affiliate
PaymentsForAdvanceToAffiliate
0 USD
CY2011 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
-2000000 USD
CY2009 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
-30000000 USD
CY2010 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
-22000000 USD
CY2009 us-gaap Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
10000000 USD
CY2011 us-gaap Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
24000000 USD
CY2010 us-gaap Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
2000000 USD
CY2009 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
276000000 USD
CY2010 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
319000000 USD
CY2011 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
337000000 USD
CY2009 us-gaap Payments To Acquire Interest In Joint Venture
PaymentsToAcquireInterestInJointVenture
115000000 USD
CY2010 us-gaap Payments To Acquire Interest In Joint Venture
PaymentsToAcquireInterestInJointVenture
18000000 USD
CY2011 us-gaap Payments To Acquire Interest In Joint Venture
PaymentsToAcquireInterestInJointVenture
12000000 USD
CY2011 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
1303000000 USD
CY2010 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
1509000000 USD
CY2009 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
1160000000 USD
CY2010Q4 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
906000000 USD
CY2011Q4 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
1065000000 USD
CY2011Q4 us-gaap Postemployment Benefits Liability Current And Noncurrent
PostemploymentBenefitsLiabilityCurrentAndNoncurrent
30000000 USD
CY2010Q4 us-gaap Postemployment Benefits Liability Current And Noncurrent
PostemploymentBenefitsLiabilityCurrentAndNoncurrent
25000000 USD
CY2011Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.01
CY2010Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.01
CY2009Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.01
CY2011Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2010Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2009Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000 shares
CY2009Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
0 shares
CY2011Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
0 shares
CY2010Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
0 shares
CY2009 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
504000000 USD
CY2010 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
416000000 USD
CY2011 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
6000000 USD
CY2009 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
1165000000 USD
CY2011 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
550000000 USD
CY2010 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
0 USD
CY2011 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
0 USD
CY2009 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
6000000 USD
CY2010 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
0 USD
CY2011 us-gaap Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
102000000 USD
CY2010 us-gaap Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
183000000 USD
CY2009 us-gaap Proceeds From Repayments Of Commercial Paper
ProceedsFromRepaymentsOfCommercialPaper
0 USD
CY2010 us-gaap Proceeds From Repayments Of Lines Of Credit
ProceedsFromRepaymentsOfLinesOfCredit
0 USD
CY2009 us-gaap Proceeds From Repayments Of Lines Of Credit
ProceedsFromRepaymentsOfLinesOfCredit
-1441000000 USD
CY2011 us-gaap Proceeds From Repayments Of Lines Of Credit
ProceedsFromRepaymentsOfLinesOfCredit
0 USD
CY2009 us-gaap Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
-98000000 USD
CY2011 us-gaap Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
9000000 USD
CY2010 us-gaap Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
-2000000 USD
CY2010Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
16005000000 USD
CY2011Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
16868000000 USD
CY2010Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
11732000000 USD
CY2011Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
12402000000 USD
CY2011 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
26000000 USD
CY2009 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
36000000 USD
CY2010 us-gaap Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
30000000 USD
CY2011Q4 us-gaap Recorded Third Party Environmental Recoveries Amount
RecordedThirdPartyEnvironmentalRecoveriesAmount
5500000 USD
CY2010Q4 us-gaap Regulatory Assets
RegulatoryAssets
3446000000 USD
CY2011Q4 us-gaap Regulatory Assets
RegulatoryAssets
4619000000 USD
CY2010Q4 us-gaap Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
3446000000 USD
CY2011Q4 us-gaap Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
4619000000 USD
CY2011Q4 us-gaap Regulatory Liabilities
RegulatoryLiabilities
1039000000 USD
CY2010Q4 us-gaap Regulatory Liabilities
RegulatoryLiabilities
989000000 USD
CY2011Q4 us-gaap Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
1039000000 USD
CY2010Q4 us-gaap Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
989000000 USD
CY2010Q4 us-gaap Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided
RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided
58000000 USD
CY2011Q4 us-gaap Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided
RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided
16000000 USD
CY2011 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
909000000 USD
CY2009 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
222000000 USD
CY2010 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
783000000 USD
CY2011Q4 us-gaap Restricted Cash And Cash Equivalents
RestrictedCashAndCashEquivalents
42000000 USD
CY2010Q4 us-gaap Restricted Cash And Cash Equivalents
RestrictedCashAndCashEquivalents
39000000 USD
CY2009 us-gaap Revenues
Revenues
8281000000 USD
CY2011 us-gaap Revenues
Revenues
8450000000 USD
CY2010 us-gaap Revenues
Revenues
8785000000 USD
CY2011Q3 us-gaap Revenues
Revenues
1881000000 USD
CY2011Q1 us-gaap Revenues
Revenues
2587000000 USD
CY2011Q4 us-gaap Revenues
Revenues
2145000000 USD
CY2011Q2 us-gaap Revenues
Revenues
1837000000 USD
CY2010Q4 us-gaap Revenues
Revenues
2098000000 USD
CY2010Q2 us-gaap Revenues
Revenues
1756000000 USD
CY2010Q3 us-gaap Revenues
Revenues
1908000000 USD
CY2010Q1 us-gaap Revenues
Revenues
3023000000 USD
CY2011 us-gaap Revenues From Transactions With Other Operating Segments Of Same Entity
RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity
0 USD
CY2009 us-gaap Revenues From Transactions With Other Operating Segments Of Same Entity
RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity
0 USD
CY2010 us-gaap Revenues From Transactions With Other Operating Segments Of Same Entity
RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity
0 USD
CY2011 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod
three-year
CY2011Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
14000000 shares
CY2010Q4 us-gaap Short Term Borrowings
ShortTermBorrowings
53000000 USD
CY2011Q4 us-gaap Short Term Borrowings
ShortTermBorrowings
62000000 USD
CY2010Q4 us-gaap Stockholders Equity
StockholdersEquity
3198000000 USD
CY2011Q4 us-gaap Stockholders Equity
StockholdersEquity
4222000000 USD
CY2009Q4 us-gaap Stockholders Equity
StockholdersEquity
2639000000 USD
CY2009 us-gaap Tax Adjustments Settlements And Unusual Provisions
TaxAdjustmentsSettlementsAndUnusualProvisions
-11000000 USD
CY2011Q3 us-gaap Tax Effect Of Extraordinary Item
TaxEffectOfExtraordinaryItem
334000000 USD
CY2011 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
376000000 USD
CY2010 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
379000000 USD
CY2009 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
379000000 USD
CY2010Q4 us-gaap Taxes Payable Current
TaxesPayableCurrent
156000000 USD
CY2011Q4 us-gaap Taxes Payable Current
TaxesPayableCurrent
207000000 USD
CY2010 us-gaap Unrealized Gain Loss On Commodity Contracts
UnrealizedGainLossOnCommodityContracts
4000000 USD
CY2011 us-gaap Unrealized Gain Loss On Commodity Contracts
UnrealizedGainLossOnCommodityContracts
8000000 USD
CY2009 us-gaap Unrealized Gain Loss On Commodity Contracts
UnrealizedGainLossOnCommodityContracts
-23000000 USD
CY2009Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
187000000 USD
CY2010Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
252000000 USD
CY2008Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
117000000 USD
CY2011Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
51000000 USD
CY2010 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
4000000 USD
CY2009 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
25000000 USD
CY2011 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
203000000 USD
CY2009 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
56000000 USD
CY2011 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
5000000 USD
CY2010 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
60000000 USD
CY2009 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
56000000 USD
CY2010 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
9000000 USD
CY2011 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
-1000000 USD
CY2010Q4 us-gaap Unrecognized Tax Benefits Interest On Income Taxes Accrued
UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
12000000 USD
CY2011Q4 us-gaap Unrecognized Tax Benefits Interest On Income Taxes Accrued
UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
-1000000 USD
CY2010 us-gaap Unrecognized Tax Benefits Interest On Income Taxes Expense
UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense
8000000 USD
CY2009 us-gaap Unrecognized Tax Benefits Interest On Income Taxes Expense
UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense
-7000000 USD
CY2011 us-gaap Unrecognized Tax Benefits Interest On Income Taxes Expense
UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense
-13000000 USD
CY2010 us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
0 USD
CY2009 us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
0 USD
CY2011 us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
1000000 USD
CY2010Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
17000000 USD
CY2009Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
10000000 USD
CY2011Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
21000000 USD
CY2011Q4 us-gaap Valuation Allowance Amount
ValuationAllowanceAmount
4000000 USD
CY2010Q4 us-gaap Valuation Allowance Amount
ValuationAllowanceAmount
3000000 USD
CY2009 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
367681000 shares
CY2011 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
428724000 shares
CY2010 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
412776000 shares
CY2010 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
409721000 shares
CY2011 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
425636000 shares
CY2009 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
365229000 shares
CY2009 cnp Accounts Receivable And Unbilled Revenues Net
AccountsReceivableAndUnbilledRevenuesNet
-283000000 USD
CY2010 cnp Accounts Receivable And Unbilled Revenues Net
AccountsReceivableAndUnbilledRevenuesNet
-101000000 USD
CY2011 cnp Accounts Receivable And Unbilled Revenues Net
AccountsReceivableAndUnbilledRevenuesNet
-40000000 USD
CY2010Q4 cnp Accounts Receivable Net Variable Interest Entities
AccountsReceivableNetVariableInterestEntities
49000000 USD
CY2011Q4 cnp Accounts Receivable Net Variable Interest Entities
AccountsReceivableNetVariableInterestEntities
52000000 USD
CY2009 cnp Accretion Of Debt Component Indexed Debt Securities
AccretionOfDebtComponentIndexedDebtSecurities
21000000 USD
CY2011 cnp Accretion Of Debt Component Indexed Debt Securities
AccretionOfDebtComponentIndexedDebtSecurities
22000000 USD
CY2010 cnp Accretion Of Debt Component Indexed Debt Securities
AccretionOfDebtComponentIndexedDebtSecurities
22000000 USD
CY2010Q4 cnp Accrued Unbilled Revenues
AccruedUnbilledRevenues
340000000 USD
CY2011Q4 cnp Accrued Unbilled Revenues
AccruedUnbilledRevenues
326000000 USD
CY2010Q4 cnp Accumulated Deferred Income Taxes Net Current
AccumulatedDeferredIncomeTaxesNetCurrent
407000000 USD
CY2011Q4 cnp Accumulated Deferred Income Taxes Net Current
AccumulatedDeferredIncomeTaxesNetCurrent
507000000 USD
CY2010Q4 cnp Accumulated Deferred Income Taxes Net Noncurrent
AccumulatedDeferredIncomeTaxesNetNoncurrent
2934000000 USD
CY2011Q4 cnp Accumulated Deferred Income Taxes Net Noncurrent
AccumulatedDeferredIncomeTaxesNetNoncurrent
3832000000 USD
CY2011Q3 cnp Additional Amount Allowed By District Court On True Up Appeal
AdditionalAmountAllowedByDistrictCourtOnTrueUpAppeal
1695000000 USD
CY2009 cnp Adjustments To Previous State Income Tax Estimates
AdjustmentsToPreviousStateIncomeTaxEstimates
12000000 USD
CY2004Q4 cnp Amount Awarded In Final True Up Order
AmountAwardedInFinalTrueUpOrder
2300000000 USD
CY2011Q2 cnp Amount Excluded From Performance Bonus For Prior Years Program
AmountExcludedFromPerformanceBonusForPriorYearsProgram
2100000 USD
CY2009Q4 cnp Amount Of2008 Energy Efficiency Program Costs
AmountOf2008EnergyEfficiencyProgramCosts
10000000 USD
CY2009Q2 cnp Amount Of2010 Energy Efficiency Program Costs Submitted For Reimbursement
AmountOf2010EnergyEfficiencyProgramCostsSubmittedForReimbursement
10000000 USD
CY2011 cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
21000000 USD
CY2009 cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
14000000 USD
CY2010 cnp Amount Of Allowed Equity Return Recognized In Period
AmountOfAllowedEquityReturnRecognizedInPeriod
16000000 USD
CY2011Q1 cnp Amount Of Annual Approved Decrease On Charges To Wholesale Transmission Customers
AmountOfAnnualApprovedDecreaseOnChargesToWholesaleTransmissionCustomers
12300000 USD
CY2008 cnp Amount Of Annual Revenue Increase Approved For Gas Operations In Service Area1
AmountOfAnnualRevenueIncreaseApprovedForGasOperationsInServiceArea1
3500000 USD
CY2010Q1 cnp Amount Of Approved Annual Revenue Increase In Gas Operations In Service Area2
AmountOfApprovedAnnualRevenueIncreaseInGasOperationsInServiceArea2
5100000 USD
CY2011Q1 cnp Amount Of Approved Base Rate Increase Per Year
AmountOfApprovedBaseRateIncreasePerYear
14700000 USD
CY2009Q4 cnp Amount Of Bonus On2008 Energy Efficiency Program Costs Disallowed
AmountOfBonusOn2008EnergyEfficiencyProgramCostsDisallowed
2000000 USD
CY2009Q3 cnp Amount Of Carrying Costs Of Gas Inventory Excluded From Rate Increase
AmountOfCarryingCostsOfGasInventoryExcludedFromRateIncrease
2000000 USD
CY2010Q1 cnp Amount Of Charge To Income Tax Expense As Result Of Change In Tax Law
AmountOfChargeToIncomeTaxExpenseAsResultOfChangeInTaxLaw
21000000 USD
CY2010 cnp Amount Of Decrease In Income Tax Expense Recorded Related To Effects Of Re Measuring Accumulated Deferred Income Taxes
AmountOfDecreaseInIncomeTaxExpenseRecordedRelatedToEffectsOfReMeasuringAccumulatedDeferredIncomeTaxes
24000000 USD
CY2011 cnp Amount Of Decrease In Income Tax Expense Recorded Related To Effects Of Re Measuring Accumulated Deferred Income Taxes
AmountOfDecreaseInIncomeTaxExpenseRecordedRelatedToEffectsOfReMeasuringAccumulatedDeferredIncomeTaxes
17000000 USD
CY2010Q4 cnp Amount Of Decrease In Income Tax Expense Recorded Related To Effects Of Re Measuring Accumulated Deferred Income Taxes
AmountOfDecreaseInIncomeTaxExpenseRecordedRelatedToEffectsOfReMeasuringAccumulatedDeferredIncomeTaxes
24000000 USD
CY2011Q4 cnp Amount Of Indemnification Receivable
AmountOfIndemnificationReceivable
27000000 USD
CY2011Q4 cnp Amount Of Internal Revenue Service Disallowance Of Casualty Loss
AmountOfInternalRevenueServiceDisallowanceOfCasualtyLoss
603000000 USD
CY2010 cnp Amount Of Net Reduction To Income Tax Expense From State Income Tax Expense Net Of Federal Income Tax
AmountOfNetReductionToIncomeTaxExpenseFromStateIncomeTaxExpenseNetOfFederalIncomeTax
29000000 USD
CY2010 cnp Amount Of Non Cash Recorded To Income Tax Expense As Result Of Change In Tax Law
AmountOfNonCashRecordedToIncomeTaxExpenseAsResultOfChangeInTaxLaw
21000000 USD
CY2009Q4 cnp Amount Of Partial Performance Bonus Approved By Texas Utility Commission Related To2010 Energy Efficiency Program
AmountOfPartialPerformanceBonusApprovedByTexasUtilityCommissionRelatedTo2010EnergyEfficiencyProgram
8000000 USD
CY2010Q4 cnp Amount Of Partial Performance Bonus Approved By Texas Utility Commission Related To2011 Energy Efficiency Program
AmountOfPartialPerformanceBonusApprovedByTexasUtilityCommissionRelatedTo2011EnergyEfficiencyProgram
11000000 USD
CY2011 cnp Amount Of Pension And Postemployment Benefits Deferred As Regulatory Asset
AmountOfPensionAndPostemploymentBenefitsDeferredAsRegulatoryAsset
16000000 USD
CY2010 cnp Amount Of Pension And Postemployment Benefits Deferred As Regulatory Asset
AmountOfPensionAndPostemploymentBenefitsDeferredAsRegulatoryAsset
26000000 USD
CY2011Q1 cnp Amount Of Rate Base Transferred
AmountOfRateBaseTransferred
138000000 USD
CY2010Q4 cnp Amount Of Reduction To Deferred Tax Assets Due To Actuarially Determined Net Present Value Of Lost Future Health Care Deductions
AmountOfReductionToDeferredTaxAssetsDueToActuariallyDeterminedNetPresentValueOfLostFutureHealthCareDeductions
32000000 USD
CY2010 cnp Amount Of Reduction To Deferred Tax Assets Recorded To Income Tax Expense Due To Actuarially Determined Net Present Value Of Lost Future Health Care Deductions
AmountOfReductionToDeferredTaxAssetsRecordedToIncomeTaxExpenseDueToActuariallyDeterminedNetPresentValueOfLostFutureHealthCareDeductions
21000000 USD
CY2011 cnp Annualized Individual Discount Rates Based On Time Period Maximum
AnnualizedIndividualDiscountRatesBasedOnTimePeriodMaximum
P99Y
CY2011 cnp Annualized Individual Discount Rates Based On Time Period Minimum
AnnualizedIndividualDiscountRatesBasedOnTimePeriodMinimum
P6M
CY2010Q1 cnp Approved Annual Amount Of Surcharge In Gas Operations To Cover Storm Costs
ApprovedAnnualAmountOfSurchargeInGasOperationsToCoverStormCosts
900000 USD
CY2011Q1 cnp Approved Cost Of Debt
ApprovedCostOfDebt
0.0674
CY2011Q1 cnp Approved Percentage Of Capital Structure Based On Equity
ApprovedPercentageOfCapitalStructureBasedOnEquity
0.55
CY2011Q1 cnp Approved Percentage Of Capital Structure Based On Long Term Debt
ApprovedPercentageOfCapitalStructureBasedOnLongTermDebt
0.45
CY2011Q1 cnp Approved Percentage Of Overall Rate Of Return
ApprovedPercentageOfOverallRateOfReturn
0.0821
CY2011Q1 cnp Approved Rate Of Return On Equity
ApprovedRateOfReturnOnEquity
0.10
CY2011Q1 cnp Approved Reduction In Duration Of Residential Ams Surcharge Related To Reconciliation Plan
ApprovedReductionInDurationOfResidentialAmsSurchargeRelatedToReconciliationPlan
6
CY2010Q2 cnp Approximate Amount Of Costs Related To Energy Efficiency Programs
ApproximateAmountOfCostsRelatedToEnergyEfficiencyPrograms
14400000 USD
CY2008Q1 cnp Approximate Number Of Customers In Gas Operation In Service Area1
ApproximateNumberOfCustomersInGasOperationInServiceArea1
230000
CY2009Q3 cnp Approximate Number Of Customers In Gas Operation In Service Area2
ApproximateNumberOfCustomersInGasOperationInServiceArea2
940000
CY2011Q1 cnp Automatic Renewal Period For Cosa
AutomaticRenewalPeriodForCosa
3
CY2011 cnp Bifurcated Debt Annual Accretion Rate
BifurcatedDebtAnnualAccretionRate
0.173
CY2009 cnp Capital Distribution Received During Period From Affiliate1
CapitalDistributionReceivedDuringPeriodFromAffiliate1
23000000 USD
CY2011Q4 cnp Capital Loss Carryforwards State
CapitalLossCarryforwardsState
244000000 USD
CY2011Q4 cnp Capital Stock Shares Authorized
CapitalStockSharesAuthorized
1020000000 shares
CY2011 cnp Capital Stock Shares Preference Stock Conversion Rate
CapitalStockSharesPreferenceStockConversionRate
0.001 shares
CY2011 cnp Capital Stock Shares Preference Stock Purchase Rights
CapitalStockSharesPreferenceStockPurchaseRights
1 shares
CY2011Q4 cnp Capitalized Interest And Allowance For Funds Used During Construction
CapitalizedInterestAndAllowanceForFundsUsedDuringConstruction
4000000 USD
CY2009Q4 cnp Capitalized Interest And Allowance For Funds Used During Construction
CapitalizedInterestAndAllowanceForFundsUsedDuringConstruction
5000000 USD
CY2010Q4 cnp Capitalized Interest And Allowance For Funds Used During Construction
CapitalizedInterestAndAllowanceForFundsUsedDuringConstruction
9000000 USD
CY2010Q4 cnp Cash And Cash Equivalents Held To Support Servicing Transition And System Restoration Bonds
CashAndCashEquivalentsHeldToSupportServicingTransitionAndSystemRestorationBonds
198000000 USD
CY2011Q4 cnp Cash And Cash Equivalents Held To Support Servicing Transition And System Restoration Bonds
CashAndCashEquivalentsHeldToSupportServicingTransitionAndSystemRestorationBonds
220000000 USD
CY2010Q4 cnp Cash And Cash Equivalents Variable Interest Entities
CashAndCashEquivalentsVariableInterestEntities
198000000 USD
CY2011Q4 cnp Cash And Cash Equivalents Variable Interest Entities
CashAndCashEquivalentsVariableInterestEntities
220000000 USD
CY2010Q4 cnp Cash Collateral Posted With Counterparties
CashCollateralPostedWithCounterparties
84000000 USD
CY2011Q4 cnp Cash Collateral Posted With Counterparties
CashCollateralPostedWithCounterparties
56000000 USD
CY2011 cnp Cash Equivalents Length Of Time To Maturity To Be Classified As Cash Equivalent
CashEquivalentsLengthOfTimeToMaturityToBeClassifiedAsCashEquivalent
P3M
CY2009 cnp Cash Paid For Debt Exchange
CashPaidForDebtExchange
0 USD
CY2010 cnp Cash Paid For Debt Exchange
CashPaidForDebtExchange
0 USD
CY2011 cnp Cash Paid For Debt Exchange
CashPaidForDebtExchange
58000000 USD
CY2011 cnp Cash Received From Doe Grant
CashReceivedFromDoeGrant
110000000 USD
CY2009 cnp Cash Received From Doe Grant
CashReceivedFromDoeGrant
0 USD
CY2010 cnp Cash Received From Doe Grant
CashReceivedFromDoeGrant
90000000 USD
CY2011Q4 cnp Collateral Netting
CollateralNetting
56000000 USD
CY2010Q4 cnp Collateral Netting
CollateralNetting
84000000 USD
CY2011 cnp Decrease In Income Tax Expense For Release Of Accrued Interest Expense
DecreaseInIncomeTaxExpenseForReleaseOfAccruedInterestExpense
9000000 USD
CY2010Q4 cnp Deferred Tax Assets Current Other
DeferredTaxAssetsCurrentOther
21000000 USD
CY2011Q4 cnp Deferred Tax Assets Current Other
DeferredTaxAssetsCurrentOther
7000000 USD
CY2010Q4 cnp Deferred Tax Assets Loss And Credit Tax Carryforwards
DeferredTaxAssetsLossAndCreditTaxCarryforwards
49000000 USD
CY2011Q4 cnp Deferred Tax Assets Loss And Credit Tax Carryforwards
DeferredTaxAssetsLossAndCreditTaxCarryforwards
214000000 USD
CY2011Q4 cnp Deferred Tax Assets Noncurrent Other
DeferredTaxAssetsNoncurrentOther
68000000 USD
CY2010Q4 cnp Deferred Tax Assets Noncurrent Other
DeferredTaxAssetsNoncurrentOther
48000000 USD
CY2011Q4 cnp Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Gas Costs
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredGasCosts
0 USD
CY2010Q4 cnp Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Gas Costs
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredGasCosts
32000000 USD
CY2011Q4 cnp Deferred Tax Liabilities Depreciation
DeferredTaxLiabilitiesDepreciation
2849000000 USD
CY2010Q4 cnp Deferred Tax Liabilities Depreciation
DeferredTaxLiabilitiesDepreciation
2086000000 USD
CY2010Q4 cnp Deferred Tax Liabilities Noncurrent Other
DeferredTaxLiabilitiesNoncurrentOther
32000000 USD
CY2011Q4 cnp Deferred Tax Liabilities Noncurrent Other
DeferredTaxLiabilitiesNoncurrentOther
125000000 USD
CY2010Q4 cnp Deferred Tax Liabilities Unrealized Gains On Indexed Debt Securities
DeferredTaxLiabilitiesUnrealizedGainsOnIndexedDebtSecurities
391000000 USD
CY2011Q4 cnp Deferred Tax Liabilities Unrealized Gains On Indexed Debt Securities
DeferredTaxLiabilitiesUnrealizedGainsOnIndexedDebtSecurities
427000000 USD
CY2010Q4 cnp Deferred Tax Liabilities Unrealized Gains On Marketable Securities
DeferredTaxLiabilitiesUnrealizedGainsOnMarketableSecurities
80000000 USD
CY2011Q4 cnp Deferred Tax Liabilities Unrealized Gains On Marketable Securities
DeferredTaxLiabilitiesUnrealizedGainsOnMarketableSecurities
97000000 USD
CY2011 cnp Defined Benefit Pension Plan Vesting Period
DefinedBenefitPensionPlanVestingPeriod
three
CY2011Q4 cnp Defined Benefit Plan Common Collective Funds Percentage Of Fixed Income Securities
DefinedBenefitPlanCommonCollectiveFundsPercentageOfFixedIncomeSecurities
0.39
CY2010Q4 cnp Defined Benefit Plan Common Collective Funds Percentage Of Fixed Income Securities
DefinedBenefitPlanCommonCollectiveFundsPercentageOfFixedIncomeSecurities
0.24
CY2011Q4 cnp Defined Benefit Plan Common Collective Funds Percentage Of International Equities
DefinedBenefitPlanCommonCollectiveFundsPercentageOfInternationalEquities
0.31
CY2010Q4 cnp Defined Benefit Plan Common Collective Funds Percentage Of International Equities
DefinedBenefitPlanCommonCollectiveFundsPercentageOfInternationalEquities
0.34
CY2010Q4 cnp Defined Benefit Plan Common Collective Funds Percentage Of Us Equities
DefinedBenefitPlanCommonCollectiveFundsPercentageOfUsEquities
0.42
CY2011Q4 cnp Defined Benefit Plan Common Collective Funds Percentage Of Us Equities
DefinedBenefitPlanCommonCollectiveFundsPercentageOfUsEquities
0.30
CY2010Q4 cnp Defined Benefit Plan Mutual Funds Percentage Of Fixed Income Securities
DefinedBenefitPlanMutualFundsPercentageOfFixedIncomeSecurities
0.74
CY2011Q4 cnp Defined Benefit Plan Mutual Funds Percentage Of International Equities
DefinedBenefitPlanMutualFundsPercentageOfInternationalEquities
0.75
CY2010Q4 cnp Defined Benefit Plan Mutual Funds Percentage Of Us Equities
DefinedBenefitPlanMutualFundsPercentageOfUsEquities
0.26
CY2011Q4 cnp Defined Benefit Plan Mutual Funds Percentage Of Us Equities
DefinedBenefitPlanMutualFundsPercentageOfUsEquities
0.25
CY2011 cnp Defined Benefit Plan Percentage Vested
DefinedBenefitPlanPercentageVested
1.00
CY2011Q4 cnp Defined Benefit Plan Retirement Benefit Eligible Earnings Increased Percentage
DefinedBenefitPlanRetirementBenefitEligibleEarningsIncreasedPercentage
0.05
CY2011Q4 cnp Defined Benefit Plan Retirement Benefit Eligible Earnings Previous Percentage
DefinedBenefitPlanRetirementBenefitEligibleEarningsPreviousPercentage
0.04
CY2011 cnp Defined Benefit Plan Transition Obligation Amortization Period
DefinedBenefitPlanTransitionObligationAmortizationPeriod
20 years
CY2010Q4 cnp Derivative Assets Investment Grade Non Trading
DerivativeAssetsInvestmentGradeNonTrading
6000000 USD
CY2011Q4 cnp Derivative Assets Investment Grade Non Trading
DerivativeAssetsInvestmentGradeNonTrading
1000000 USD
CY2011Q4 cnp Derivative Assets Non Trading
DerivativeAssetsNonTrading
107000000 USD
CY2010Q4 cnp Derivative Assets Non Trading
DerivativeAssetsNonTrading
69000000 USD
CY2011 cnp Derivative Gross Volume Basis Swaps Long Position
DerivativeGrossVolumeBasisSwapsLongPosition
74
CY2010 cnp Derivative Gross Volume Basis Swaps Long Position
DerivativeGrossVolumeBasisSwapsLongPosition
63
CY2011 cnp Derivative Gross Volume Long Position
DerivativeGrossVolumeLongPosition
84
CY2010 cnp Derivative Gross Volume Long Position
DerivativeGrossVolumeLongPosition
72
CY2011 cnp Derivative Gross Volume Segment Long Position
DerivativeGrossVolumeSegmentLongPosition
6
CY2010 cnp Derivative Gross Volume Segment Long Position
DerivativeGrossVolumeSegmentLongPosition
26
CY2011 cnp Description Of Company Match Under Savings Plan
DescriptionOfCompanyMatchUnderSavingsPlan
100% of the first 6% of each employee’s compensation contributed
CY2011Q4 cnp Dollar Face Amount Of Individual Note
DollarFaceAmountOfIndividualNote
1000 USD
CY2011Q3 cnp Energy Efficiency Costs
EnergyEfficiencyCosts
35900000 USD
CY2011Q3 cnp Energy Efficiency Performance Bonus
EnergyEfficiencyPerformanceBonus
3600000 USD
CY2011Q4 cnp Equity Return Portion Of Recoverable True Up Balance After Tax
EquityReturnPortionOfRecoverableTrueUpBalanceAfterTax
258000000 USD
CY2011Q4 cnp Equity Return Portion Of Recoverable True Up Balance Pre Tax
EquityReturnPortionOfRecoverableTrueUpBalancePreTax
405000000 USD
CY2011Q1 cnp Estimated Reduction In Annual Operating Income
EstimatedReductionInAnnualOperatingIncome
35000000 USD
CY2009 cnp Expense From Natural Gas Derivatives Unrealized Losses Gains
ExpenseFromNaturalGasDerivativesUnrealizedLossesGains
-57000000 USD
CY2011 cnp Expense From Natural Gas Derivatives Unrealized Losses Gains
ExpenseFromNaturalGasDerivativesUnrealizedLossesGains
30000000 USD
CY2010 cnp Expense From Natural Gas Derivatives Unrealized Losses Gains
ExpenseFromNaturalGasDerivativesUnrealizedLossesGains
14000000 USD
CY2011Q4 cnp Fair Market Value Of Referenced Shares Attributable To Zero Premium Exchangeable Subordinated Notes
FairMarketValueOfReferencedSharesAttributableToZeroPremiumExchangeableSubordinatedNotes
386000000 USD
CY2010Q4 cnp Fair Value Assets Measured On Recurring Basis Assets Total
FairValueAssetsMeasuredOnRecurringBasisAssetsTotal
491000000 USD
CY2011Q4 cnp Fair Value Assets Measured On Recurring Basis Assets Total
FairValueAssetsMeasuredOnRecurringBasisAssetsTotal
550000000 USD
CY2010Q4 cnp Fair Value Assets Measured On Recurring Basis Corporate Equities
FairValueAssetsMeasuredOnRecurringBasisCorporateEquities
368000000 USD
CY2011Q4 cnp Fair Value Assets Measured On Recurring Basis Corporate Equities
FairValueAssetsMeasuredOnRecurringBasisCorporateEquities
387000000 USD
CY2010Q4 cnp Fair Value Liabilities Measured On Recurring Basis Liabilities Total
FairValueLiabilitiesMeasuredOnRecurringBasisLiabilitiesTotal
316000000 USD
CY2011Q4 cnp Fair Value Liabilities Measured On Recurring Basis Liabilities Total
FairValueLiabilitiesMeasuredOnRecurringBasisLiabilitiesTotal
249000000 USD
CY2011Q4 cnp Federal Benefit Deductibility Of Interest
FederalBenefitDeductibilityOfInterest
5000000 USD
CY2010 cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
-31000000 USD
CY2009 cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
-68000000 USD
CY2011 cnp Gain Loss On Indexed Debt Securities
GainLossOnIndexedDebtSecurities
35000000 USD
CY2010 cnp Gas Transportation Revenue
GasTransportationRevenue
785000000 USD
CY2010Q4 cnp Guarantee Obligations Collateral Posted
GuaranteeObligationsCollateralPosted
7000000 USD
CY2011Q4 cnp Guarantee Obligations Collateral Posted
GuaranteeObligationsCollateralPosted
21000000 USD
CY2011Q4 cnp Guarantee Obligations Demand Charges Present Value
GuaranteeObligationsDemandChargesPresentValue
88000000 USD
CY2011 cnp Gas Transportation Revenue
GasTransportationRevenue
824000000 USD
CY2009 cnp Gas Transportation Revenue
GasTransportationRevenue
691000000 USD
CY2009 cnp Income Tax Reconciliation Change In Tax Expense
IncomeTaxReconciliationChangeInTaxExpense
-16000000 USD
CY2010 cnp Income Tax Reconciliation Change In Tax Expense
IncomeTaxReconciliationChangeInTaxExpense
16000000 USD
CY2011 cnp Income Tax Reconciliation Change In Tax Expense
IncomeTaxReconciliationChangeInTaxExpense
-7000000 USD
CY2009 cnp Income Tax Reconciliation Tax Settlements And Uncertain Income Tax Positions
IncomeTaxReconciliationTaxSettlementsAndUncertainIncomeTaxPositions
-5000000 USD
CY2010 cnp Income Tax Reconciliation Tax Settlements And Uncertain Income Tax Positions
IncomeTaxReconciliationTaxSettlementsAndUncertainIncomeTaxPositions
14000000 USD
CY2011 cnp Income Tax Reconciliation Tax Settlements And Uncertain Income Tax Positions
IncomeTaxReconciliationTaxSettlementsAndUncertainIncomeTaxPositions
-5000000 USD
CY2011 cnp Increase In Deferred Tax Liability
IncreaseInDeferredTaxLiability
202000000 USD
CY2010 cnp Increase In Income Tax Expense Related To Uncertain Tax Positions
IncreaseInIncomeTaxExpenseRelatedToUncertainTaxPositions
5000000 USD
CY2009 cnp Incremental Common Shares Attributable To Restricted Stock
IncrementalCommonSharesAttributableToRestrictedStock
2001000 shares
CY2010 cnp Incremental Common Shares Attributable To Restricted Stock
IncrementalCommonSharesAttributableToRestrictedStock
2585000 shares
CY2011 cnp Incremental Common Shares Attributable To Restricted Stock
IncrementalCommonSharesAttributableToRestrictedStock
2741000 shares
CY2010Q4 cnp Indexed Debt Current
IndexedDebtCurrent
126000000 USD
CY2011Q4 cnp Indexed Debt Current
IndexedDebtCurrent
131000000 USD
CY2009Q4 cnp Indexed Debt Current
IndexedDebtCurrent
121000000 USD
CY2008Q4 cnp Indexed Debt Current
IndexedDebtCurrent
117000000 USD
CY2011Q4 cnp Indexed Debt Securities Derivative
IndexedDebtSecuritiesDerivative
197000000 USD
CY2010Q4 cnp Indexed Debt Securities Derivative
IndexedDebtSecuritiesDerivative
232000000 USD
CY2008Q4 cnp Indexed Debt Securities Derivative
IndexedDebtSecuritiesDerivative
133000000 USD
CY2009Q4 cnp Indexed Debt Securities Derivative
IndexedDebtSecuritiesDerivative
201000000 USD
CY2004Q1 cnp Initial Amount Of True Up Application
InitialAmountOfTrueUpApplication
3700000000 USD
CY2010 cnp Interest And Taxes Accrued
InterestAndTaxesAccrued
-2000000 USD
CY2011 cnp Interest And Taxes Accrued
InterestAndTaxesAccrued
44000000 USD
CY2009 cnp Interest And Taxes Accrued
InterestAndTaxesAccrued
-41000000 USD
CY2009 cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
131000000 USD
CY2011 cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
127000000 USD
CY2010 cnp Interest On Transition And System Restoration Bonds
InterestOnTransitionAndSystemRestorationBonds
140000000 USD
CY2009 cnp Interest Paid Debt Component Indexed Debt Securities
InterestPaidDebtComponentIndexedDebtSecurities
17000000 USD
CY2010 cnp Interest Paid Debt Component Indexed Debt Securities
InterestPaidDebtComponentIndexedDebtSecurities
17000000 USD
CY2011 cnp Interest Paid Debt Component Indexed Debt Securities
InterestPaidDebtComponentIndexedDebtSecurities
17000000 USD
CY2009 cnp Investment During Period In Affiliate1
InvestmentDuringPeriodInAffiliate1
137000000 USD
CY2011Q4 cnp Payment Under Transmission Stipulation
PaymentUnderTransmissionStipulation
5600000 USD
CY2011Q4 cnp Loss Contingency Defendants Dismissed
LossContingencyDefendantsDismissed
2
CY2011Q4 cnp Loss Contingency Kansas Gas Measurement Lawsuit Defendants
LossContingencyKansasGasMeasurementLawsuitDefendants
245
CY2010 cnp Investment During Period In Affiliate Two
InvestmentDuringPeriodInAffiliateTwo
20000000 USD
CY2011 cnp Length Of Agreements Including Severance Benefits
LengthOfAgreementsIncludingSeveranceBenefits
one-year
CY2011 cnp Length Of Interstate Natural Gas Pipeline Owned By Affiliate1
LengthOfInterstateNaturalGasPipelineOwnedByAffiliate1
274
CY2010Q4 cnp Letters Of Credit Outstanding
LettersOfCreditOutstanding
24000000 USD
CY2011Q4 cnp Letters Of Credit Outstanding
LettersOfCreditOutstanding
20000000 USD
CY2011Q4 cnp Loss Contingency Lawsuit Amendments
LossContingencyLawsuitAmendments
4
CY2011Q4 cnp Loss Contingency Pending Gas Market Manipulation Lawsuits Number
LossContingencyPendingGasMarketManipulationLawsuitsNumber
2
CY2011Q4 cnp Loss Contingency Pending Measurement Lawsuit
LossContingencyPendingMeasurementLawsuit
1
CY2011Q4 cnp Loss Contingency Pending Natural Gas Measurement Lawsuits Number
LossContingencyPendingNaturalGasMeasurementLawsuitsNumber
2
CY2011Q4 cnp Loss Contingency Term Of Allegations
LossContingencyTermOfAllegations
25 Years
CY2011Q4 cnp Loss Contingency Total Gas Market Manipulation Cases
LossContingencyTotalGasMarketManipulationCases
30
CY2011Q3 cnp Lost Revenues Associated With2010 Programs
LostRevenuesAssociatedWith2010Programs
2200000 USD
CY2009 cnp Margin Deposits Net
MarginDepositsNet
-116000000 USD
CY2011 cnp Margin Deposits Net
MarginDepositsNet
-34000000 USD
CY2010 cnp Margin Deposits Net
MarginDepositsNet
-7000000 USD
CY2011 cnp Maximum Number Of Times Annual Salary Included In Severance Benefits
MaximumNumberOfTimesAnnualSalaryIncludedInSeveranceBenefits
3
CY2011 cnp Maximum Ownership Interest Percentage For Investments Recorded Using Entity Method
MaximumOwnershipInterestPercentageForInvestmentsRecordedUsingEntityMethod
0.50
CY2011 cnp Maximum Percentage Of Employee Compensation Eligible For Contribution To Savings Plan
MaximumPercentageOfEmployeeCompensationEligibleForContributionToSavingsPlan
0.50
CY2011 cnp Minimum Ownership Interest Percentage For Investments Recorded Using Entity Method
MinimumOwnershipInterestPercentageForInvestmentsRecordedUsingEntityMethod
0.20
CY2011 cnp Minimum Total Common Stock Dividends Declared During Three Year Vesting Period
MinimumTotalCommonStockDividendsDeclaredDuringThreeYearVestingPeriod
2.37
CY2009 cnp Minimum Total Common Stock Dividends Declared During Three Year Vesting Period
MinimumTotalCommonStockDividendsDeclaredDuringThreeYearVestingPeriod
2.28
CY2010 cnp Minimum Total Common Stock Dividends Declared During Three Year Vesting Period
MinimumTotalCommonStockDividendsDeclaredDuringThreeYearVestingPeriod
2.34
CY2011 cnp Non Qualified Deferred Compensation Plan Benefit Expense
NonQualifiedDeferredCompensationPlanBenefitExpense
5000000 USD
CY2010 cnp Non Qualified Deferred Compensation Plan Benefit Expense
NonQualifiedDeferredCompensationPlanBenefitExpense
5000000 USD
CY2009 cnp Non Qualified Deferred Compensation Plan Benefit Expense
NonQualifiedDeferredCompensationPlanBenefitExpense
6000000 USD
CY2010Q1 cnp Number Of Cities Contesting New Rate For Gas Operations In Service Area1
NumberOfCitiesContestingNewRateForGasOperationsInServiceArea1
9
CY2008Q1 cnp Number Of Cities In Gas Operation In Service Area1
NumberOfCitiesInGasOperationInServiceArea1
47
CY2009Q3 cnp Number Of Cities In Gas Operation In Service Area2
NumberOfCitiesInGasOperationInServiceArea2
29
CY2011Q4 cnp Number Of Consolidated Variable Interest Entities
NumberOfConsolidatedVariableInterestEntities
5
CY2011Q4 cnp Number Of Days After Issuance Of Final Appealable Order Payment Made
NumberOfDaysAfterIssuanceOfFinalAppealableOrderPaymentMade
30
cnp Number Of Dcrf Filings Allowed
NumberOfDcrfFilingsAllowed
4
cnp Number Of Dcrf Requests Allowed Per Year
NumberOfDcrfRequestsAllowedPerYear
1
CY2011Q4 cnp Number Of Shares In Common Stock Held By Savings Plan
NumberOfSharesInCommonStockHeldBySavingsPlan
19732131 shares
CY2011Q1 cnp Number Of Years Cosa Initially Effective
NumberOfYearsCosaInitiallyEffective
3
CY2010Q1 cnp Number Of Years For Surcharge To Recover Storm Costs
NumberOfYearsForSurchargeToRecoverStormCosts
3
CY2011 cnp Operating Loss Carryforwards Expiration Dates State
OperatingLossCarryforwardsExpirationDatesState
2012 and 2031
CY2011Q4 cnp Operating Loss Carryforwards State
OperatingLossCarryforwardsState
352000000 USD
CY2011Q4 cnp Operating Loss Carryforwards Valuation Allowance State
OperatingLossCarryforwardsValuationAllowanceState
3000000 USD
CY2010 cnp Operation And Maintenance
OperationAndMaintenance
1719000000 USD
CY2011 cnp Operation And Maintenance
OperationAndMaintenance
1835000000 USD
CY2009 cnp Operation And Maintenance
OperationAndMaintenance
1664000000 USD
CY2011Q1 cnp Original Term Of Surcharge
OriginalTermOfSurcharge
12
CY2010Q4 cnp Other Non Qualified Plans Benefit Obligations Deferred Compensation
OtherNonQualifiedPlansBenefitObligationsDeferredCompensation
78000000 USD
CY2011Q4 cnp Other Non Qualified Plans Benefit Obligations Deferred Compensation
OtherNonQualifiedPlansBenefitObligationsDeferredCompensation
76000000 USD
CY2011Q4 cnp Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent Split Dollar Life Insurance
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrentSplitDollarLifeInsurance
25000000 USD
CY2010Q4 cnp Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent Split Dollar Life Insurance
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrentSplitDollarLifeInsurance
21000000 USD
CY2011Q4 cnp Percentage Of Investment In Common Stocks
PercentageOfInvestmentInCommonStocks
0.24
CY2011Q2 cnp Portion Of Application Seeking Energy Efficiency Performance Bonus Based On2010 Program Achievements
PortionOfApplicationSeekingEnergyEfficiencyPerformanceBonusBasedOn2010ProgramAchievements
5800000 USD
CY2011Q2 cnp Portion Of Application Seeking For Under Recovery Of2010 Program Costs
PortionOfApplicationSeekingForUnderRecoveryOf2010ProgramCosts
500000 USD
CY2011Q2 cnp Portion Of Application Seeking Recovery Of Energy Efficiency Program Costs
PortionOfApplicationSeekingRecoveryOfEnergyEfficiencyProgramCosts
35900000 USD
CY2011Q2 cnp Portion Of Application Seeking Recovery Of Lost Revenues Due To Verified And Reported2010 Energy Savings
PortionOfApplicationSeekingRecoveryOfLostRevenuesDueToVerifiedAndReported2010EnergySavings
2200000 USD
CY2010Q4 cnp Portion Of Requested Amount Excluded From Recovery Which Relates To Lost Revenues
PortionOfRequestedAmountExcludedFromRecoveryWhichRelatesToLostRevenues
1400000 USD
CY2010Q4 cnp Portion Of Requested Amount Excluded From Recovery Which Relates To Performance Bonus
PortionOfRequestedAmountExcludedFromRecoveryWhichRelatesToPerformanceBonus
2000000 USD
CY2010 cnp Postemployment Benefits Income In Period
PostemploymentBenefitsIncomeInPeriod
1000000 USD
CY2009 cnp Postemployment Benefits Income In Period
PostemploymentBenefitsIncomeInPeriod
0 USD
CY2011 cnp Postemployment Benefits Income In Period
PostemploymentBenefitsIncomeInPeriod
-7000000 USD
CY2011Q4 cnp Postretirement Plan Mutual Funds Percentage Of Fixed Income Securities
PostretirementPlanMutualFundsPercentageOfFixedIncomeSecurities
0.73
CY2010Q4 cnp Postretirement Plan Mutual Funds Percentage Of Fixed Income Securities
PostretirementPlanMutualFundsPercentageOfFixedIncomeSecurities
0.73
CY2010Q4 cnp Postretirement Plan Mutual Funds Percentage Of Us Equities
PostretirementPlanMutualFundsPercentageOfUsEquities
0.19
CY2011Q4 cnp Postretirement Plan Mutual Funds Percentage Of Us Equities
PostretirementPlanMutualFundsPercentageOfUsEquities
0.19
CY2011Q4 cnp Postretirement Plan Mutual Funds Percentage Of Us International Equities
PostretirementPlanMutualFundsPercentageOfUsInternationalEquities
0.08
CY2010Q4 cnp Postretirement Plan Mutual Funds Percentage Of Us International Equities
PostretirementPlanMutualFundsPercentageOfUsInternationalEquities
0.08
CY2011Q4 cnp Prepaid Expenses And Other Current Assets Variable Interest Entities
PrepaidExpensesAndOtherCurrentAssetsVariableInterestEntities
42000000 USD
CY2010Q4 cnp Prepaid Expenses And Other Current Assets Variable Interest Entities
PrepaidExpensesAndOtherCurrentAssetsVariableInterestEntities
39000000 USD
CY2009Q3 cnp Proposed Amount Of Annual Revenue Increase For Gas Operations In Service Area2
ProposedAmountOfAnnualRevenueIncreaseForGasOperationsInServiceArea2
20400000 USD
CY2009 cnp Reduction In Liability For Uncertain Tax Positions
ReductionInLiabilityForUncertainTaxPositions
41000000 USD
CY2011 cnp Reduction To Liability For Unrecognized Tax Benefits Recorded
ReductionToLiabilityForUnrecognizedTaxBenefitsRecorded
211000000 USD
CY2010Q4 cnp Regulatory Assets Variable Interest Entities
RegulatoryAssetsVariableInterestEntities
2597000000 USD
CY2011Q4 cnp Regulatory Assets Variable Interest Entities
RegulatoryAssetsVariableInterestEntities
2289000000 USD
CY2011Q4 cnp Removal Costs Recognized As Component Of Depreciation Expense
RemovalCostsRecognizedAsComponentOfDepreciationExpense
912000000 USD
CY2010Q4 cnp Removal Costs Recognized As Component Of Depreciation Expense
RemovalCostsRecognizedAsComponentOfDepreciationExpense
868000000 USD
CY2011Q4 cnp Replacement Fund Requirements2011
ReplacementFundRequirements2011
184000000 USD
CY2010 cnp Retail Gas Revenue
RetailGasRevenue
4412000000 USD
CY2011 cnp Retail Gas Revenue
RetailGasRevenue
4019000000 USD
CY2009 cnp Retail Gas Revenue
RetailGasRevenue
4540000000 USD
CY2009 cnp Return On True Up Balance
ReturnOnTrueUpBalance
0 USD
CY2010 cnp Return On True Up Balance
ReturnOnTrueUpBalance
0 USD
CY2011 cnp Return On True Up Balance
ReturnOnTrueUpBalance
352000000 USD
CY2011Q3 cnp Return On True Up Balance
ReturnOnTrueUpBalance
352000000 USD
CY2011Q3 cnp Return On True Up Balance After Tax
ReturnOnTrueUpBalanceAfterTax
224000000 USD
CY2011Q4 cnp Transition And System Restoration Bond Maturities Repayments Of Principal In Year Five
TransitionAndSystemRestorationBondMaturitiesRepaymentsOfPrincipalInYearFive
266000000 USD
CY2011Q4 cnp Transition And System Restoration Bond Maturities Repayments Of Principal In Year Four
TransitionAndSystemRestorationBondMaturitiesRepaymentsOfPrincipalInYearFour
249000000 USD
CY2011Q4 cnp Transition And System Restoration Bond Maturities Repayments Of Principal In Year Three
TransitionAndSystemRestorationBondMaturitiesRepaymentsOfPrincipalInYearThree
235000000 USD
CY2011 cnp Tax Law Change In Deductibility Of Retiree Health Care Costs
TaxLawChangeInDeductibilityOfRetireeHealthCareCosts
0 USD
CY2010 cnp Tax Law Change In Deductibility Of Retiree Health Care Costs
TaxLawChangeInDeductibilityOfRetireeHealthCareCosts
20000000 USD
CY2011Q2 cnp Total Amount Of Application Seeking Approval Of Recovery Of Various Costs
TotalAmountOfApplicationSeekingApprovalOfRecoveryOfVariousCosts
44300000 USD
CY2011Q4 cnp Subordinated Note Cash Exchange Amount Per Each Original Note
SubordinatedNoteCashExchangeAmountPerEachOriginalNote
436 USD
CY2011 cnp Subordinated Note Cash Exchangeable Percentage Of Fair Value
SubordinatedNoteCashExchangeablePercentageOfFairValue
0.95
CY2011 cnp Sales Revenue Energy Products And Services
SalesRevenueEnergyProductsAndServices
121000000 USD
CY2010 cnp Sales Revenue Energy Products And Services
SalesRevenueEnergyProductsAndServices
133000000 USD
CY2009 cnp Sales Revenue Energy Products And Services
SalesRevenueEnergyProductsAndServices
135000000 USD
CY2011 cnp Sales Revenue From Natural Gas Derivatives Unrealized Gains Losses
SalesRevenueFromNaturalGasDerivativesUnrealizedGainsLosses
38000000 USD
CY2009 cnp Sales Revenue From Natural Gas Derivatives Unrealized Gains Losses
SalesRevenueFromNaturalGasDerivativesUnrealizedGainsLosses
-80000000 USD
CY2010 cnp Sales Revenue From Natural Gas Derivatives Unrealized Gains Losses
SalesRevenueFromNaturalGasDerivativesUnrealizedGainsLosses
18000000 USD
CY2011 cnp Savings Plan Benefit Expense
SavingsPlanBenefitExpense
35000000 USD
CY2009 cnp Savings Plan Benefit Expense
SavingsPlanBenefitExpense
31000000 USD
CY2010 cnp Savings Plan Benefit Expense
SavingsPlanBenefitExpense
34000000 USD
CY2010 cnp Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalGrantDateFairValue
10000000 USD
CY2009 cnp Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalGrantDateFairValue
11000000 USD
CY2011 cnp Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalGrantDateFairValue
12000000 USD
CY2011Q4 cnp Short Term Borrowings And Current Portion Long Term Debt
ShortTermBorrowingsAndCurrentPortionLongTermDebt
546000000 USD
CY2010Q4 cnp Short Term Borrowings And Current Portion Long Term Debt
ShortTermBorrowingsAndCurrentPortionLongTermDebt
481000000 USD
CY2011Q4 cnp Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Estimated Range Of Change Maximum
SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeMaximum
31000000 USD
CY2011Q4 cnp Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Estimated Range Of Change Minimum
SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeMinimum
25000000 USD
CY2011Q4 cnp Sinking Fund Requirements2011
SinkingFundRequirements2011
3000000 USD
CY2011Q4 cnp Site Contingency Completed Remediation
SiteContingencyCompletedRemediation
2
CY2011 cnp Site Contingency Estimated Time Frame To Resolve Contingency High Estimate
SiteContingencyEstimatedTimeFrameToResolveContingencyHighEstimate
50 Years
CY2011 cnp Site Contingency Estimated Time Frame To Resolve Contingency Low Estimate
SiteContingencyEstimatedTimeFrameToResolveContingencyLowEstimate
30 Years
CY2011 cnp Site Contingency Loss Exposure High Estimate
SiteContingencyLossExposureHighEstimate
41000000 USD
CY2011 cnp Site Contingency Loss Exposure Low Estimate
SiteContingencyLossExposureLowEstimate
6000000 USD
CY2011Q4 cnp Site Contingency Remaining Minnesota Sites
SiteContingencyRemainingMinnesotaSites
5
CY2011 cnp Site Contingency Remediation Costs Included In Rates
SiteContingencyRemediationCostsIncludedInRates
285000 USD
CY2011Q4 cnp Site Contingency Sites Without Liability
SiteContingencySitesWithoutLiability
2
CY2011Q4 cnp Special Purpose Subsidiaries
SpecialPurposeSubsidiaries
5
CY2011Q4 cnp Subsequent Event Bond Issuance Transition Bond Maturities Repayments Of Principal In Next Twelve Months
SubsequentEventBondIssuanceTransitionBondMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
62000000 USD
CY2011Q4 cnp Subsequent Event Bond Issuance Transition Bond Maturities Repayments Of Principal In Year2
SubsequentEventBondIssuanceTransitionBondMaturitiesRepaymentsOfPrincipalInYear2
117000000 USD
CY2011Q4 cnp Subsequent Event Bond Issuance Transition Bond Maturities Repayments Of Principal In Year3
SubsequentEventBondIssuanceTransitionBondMaturitiesRepaymentsOfPrincipalInYear3
120000000 USD
CY2011Q4 cnp Subsequent Event Bond Issuance Transition Bond Maturities Repayments Of Principal In Year4
SubsequentEventBondIssuanceTransitionBondMaturitiesRepaymentsOfPrincipalInYear4
122000000 USD
CY2011Q4 cnp Subsequent Event Bond Issuance Transition Bond Maturities Repayments Of Principal In Year5
SubsequentEventBondIssuanceTransitionBondMaturitiesRepaymentsOfPrincipalInYear5
126000000 USD
CY2011Q4 cnp Target Annual Yield On Referenced Shares Before Increase Or Decrease Of Principal Amount Of Subordinated Note
TargetAnnualYieldOnReferencedSharesBeforeIncreaseOrDecreaseOfPrincipalAmountOfSubordinatedNote
0.02309
CY2009 cnp Tax Law Change In Deductibility Of Retiree Health Care Costs
TaxLawChangeInDeductibilityOfRetireeHealthCareCosts
0 USD
CY2011 dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
FY
CY2011 dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2011
CY2011 dei Document Period End Date
DocumentPeriodEndDate
2011-12-31
CY2011 dei Document Type
DocumentType
10-K
CY2011Q4 cnp Transition And System Restoration Bond Maturities Repayments Of Principal In Next Twelve Months
TransitionAndSystemRestorationBondMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
307000000 USD
CY2011 dei Entity Central Index Key
EntityCentralIndexKey
0001130310
CY2012Q1 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
426074270 shares
CY2011 dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
CY2011 dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
CY2011Q2 dei Entity Public Float
EntityPublicFloat
8178295805 USD
CY2011Q4 cnp Transition And System Restoration Bond Maturities Repayments Of Principal In Year Two
TransitionAndSystemRestorationBondMaturitiesRepaymentsOfPrincipalInYearTwo
330000000 USD
CY2011Q4 cnp Transition And System Restoration Bonds Long Term Debt Current
TransitionAndSystemRestorationBondsLongTermDebtCurrent
307000000 USD
CY2010Q4 cnp Transition And System Restoration Bonds Long Term Debt Current
TransitionAndSystemRestorationBondsLongTermDebtCurrent
283000000 USD
CY2010Q4 cnp Transition And System Restoration Bonds Long Term Debt Non Current
TransitionAndSystemRestorationBondsLongTermDebtNonCurrent
2522000000 USD
CY2011Q4 cnp Transition And System Restoration Bonds Long Term Debt Non Current
TransitionAndSystemRestorationBondsLongTermDebtNonCurrent
2215000000 USD
CY2011Q4 cnp Transmission Cost Of Service Annual Revenue Increase
TransmissionCostOfServiceAnnualRevenueIncrease
7100000 USD
CY2011Q3 cnp Transmission Cost Of Service Annual Revenue Increase
TransmissionCostOfServiceAnnualRevenueIncrease
3400000 USD
CY2011Q3 cnp Under Recovery Of2010 Program Costs
UnderRecoveryOf2010ProgramCosts
500000 USD
CY2011 cnp Unrealized Loss Gain On Indexed Debt Securities
UnrealizedLossGainOnIndexedDebtSecurities
35000000 USD
CY2009 cnp Unrealized Loss Gain On Indexed Debt Securities
UnrealizedLossGainOnIndexedDebtSecurities
-68000000 USD
CY2010 cnp Unrealized Loss Gain On Indexed Debt Securities
UnrealizedLossGainOnIndexedDebtSecurities
-31000000 USD
CY2011Q4 cnp Unrecognized Amount Of Allowed Equity Return
UnrecognizedAmountOfAllowedEquityReturn
600000000 USD
CY2010 cnp Unrecognized Tax Benefits Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsResultingFromSettlementsWithTaxingAuthorities
0 USD
CY2009 cnp Unrecognized Tax Benefits Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsResultingFromSettlementsWithTaxingAuthorities
17000000 USD
CY2011 cnp Unrecognized Tax Benefits Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsResultingFromSettlementsWithTaxingAuthorities
1000000 USD
CY2010 cnp Weather Hedges Gain Loss Recognized
WeatherHedgesGainLossRecognized
6000000 USD
CY2009 cnp Weather Hedges Gain Loss Recognized
WeatherHedgesGainLossRecognized
7000000 USD
CY2011 cnp Weather Hedges Gain Loss Recognized
WeatherHedgesGainLossRecognized
1000000 USD
CY2011 cnp Weather Hedges Term
WeatherHedgesTerm
10 Years
CY2009 cnp Weather Hedges Term
WeatherHedgesTerm
10
CY2010 cnp Weather Hedges Term
WeatherHedgesTerm
10
CY2011 cnp Wholesale Gas Revenue
WholesaleGasRevenue
1149000000 USD
CY2010 cnp Wholesale Gas Revenue
WholesaleGasRevenue
1250000000 USD
CY2009 cnp Wholesale Gas Revenue
WholesaleGasRevenue
902000000 USD
CY2011Q4 cnp Zero Premium Exchangeable Subordinated Notes Contingent Principal Amount Outstanding
ZeroPremiumExchangeableSubordinatedNotesContingentPrincipalAmountOutstanding
797000000 USD
CY2011Q4 cnp Zero Premium Exchangeable Subordinated Notes Face Amount
ZeroPremiumExchangeableSubordinatedNotesFaceAmount
1000000000 USD
CY2011Q4 cnp Zero Premium Exchangeable Subordinated Notes Interest Rate Stated Percentage
ZeroPremiumExchangeableSubordinatedNotesInterestRateStatedPercentage
0.02
CY2011 cnp Zero Premium Exchangeable Subordinated Notes Issuance Date
ZeroPremiumExchangeableSubordinatedNotesIssuanceDate
9/1/1999
CY2011 cnp Zero Premium Exchangeable Subordinated Notes Maturity Date
ZeroPremiumExchangeableSubordinatedNotesMaturityDate
2029
CY2011Q4 cnp Zero Premium Exchangeable Subordinated Notes Principal Outstanding
ZeroPremiumExchangeableSubordinatedNotesPrincipalOutstanding
840000000 USD
CY2011 dei Amendment Flag
AmendmentFlag
false
CY2011 dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
CY2011 dei Entity Registrant Name
EntityRegistrantName
CENTERPOINT ENERGY INC
CY2011 dei Entity Voluntary Filers
EntityVoluntaryFilers
No
CY2011 dei Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
Yes

Files In Submission

Name View Source Status
0001130310-12-000011-index-headers.html Edgar Link pending
0001130310-12-000011-index.html Edgar Link pending
0001130310-12-000011.txt Edgar Link pending
0001130310-12-000011-xbrl.zip Edgar Link pending
cnp-20111231.xml Edgar Link completed
cnp-20111231.xsd Edgar Link pending
cnp-20111231_cal.xml Edgar Link unprocessable
cnp-20111231_def.xml Edgar Link unprocessable
cnp-20111231_lab.xml Edgar Link unprocessable
cnp-20111231_pre.xml Edgar Link unprocessable
cnp_10kx12312011.htm Edgar Link pending
cnp_exhibit10iix12312011.htm Edgar Link pending
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