2010 Form 10-K Financial Statement
#000119312511030543 Filed on February 10, 2011
Income Statement
Concept | 2010 | 2009 Q4 | 2009 Q3 |
---|---|---|---|
Revenue | $18.64B | $4.116B | $4.339B |
YoY Change | 7.66% | -8.39% | -17.0% |
Cost Of Revenue | $4.425B | $815.0M | $796.0M |
YoY Change | 37.64% | 15.77% | -40.02% |
Gross Profit | $14.22B | $3.301B | $3.543B |
YoY Change | 0.82% | -12.88% | -9.18% |
Gross Profit Margin | 76.27% | 80.2% | 81.65% |
Selling, General & Admin | |||
YoY Change | |||
% of Gross Profit | |||
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $2.075B | $666.0M | $242.0M |
YoY Change | 13.14% | 14.24% | -61.53% |
% of Gross Profit | 14.59% | 20.18% | 6.83% |
Operating Expenses | $13.92B | $2.179B | $2.145B |
YoY Change | 49.46% | -11.28% | -13.79% |
Operating Profit | $4.726B | $1.076B | $1.403B |
YoY Change | -0.51% | -19.28% | -0.71% |
Interest Expense | $792.0M | -$181.0M | $170.0M |
YoY Change | 21.1% | -9.95% | -181.34% |
% of Operating Profit | 16.76% | -16.82% | 12.12% |
Other Income/Expense, Net | -$505.0M | $59.00M | -$48.00M |
YoY Change | 52.57% | -139.07% | -69.62% |
Pretax Income | $4.221B | $954.0M | $1.355B |
YoY Change | -4.48% | -2.75% | 29.54% |
Income Tax | $1.658B | $373.0M | $598.0M |
% Of Pretax Income | 39.28% | 39.1% | 44.13% |
Net Earnings | $2.563B | $581.0M | $757.0M |
YoY Change | -5.32% | -17.82% | 8.14% |
Net Earnings / Revenue | 13.75% | 14.12% | 17.45% |
Basic Earnings Per Share | $3.88 | $0.88 | $1.15 |
Diluted Earnings Per Share | $3.87 | $0.88 | $1.14 |
COMMON SHARES | |||
Basic Shares Outstanding | 661.0M shares | 660.0M shares | 660.0M shares |
Diluted Shares Outstanding | 663.0M shares | 662.0M shares | 662.0M shares |
Balance Sheet
Concept | 2010 | 2009 Q4 | 2009 Q3 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $1.612B | $2.010B | $2.374B |
YoY Change | -19.8% | 58.14% | 1204.4% |
Cash & Equivalents | $1.612B | $2.010B | $2.374B |
Short-Term Investments | |||
Other Short-Term Assets | $852.0M | $209.0M | $877.0M |
YoY Change | 36.32% | -72.64% | -20.71% |
Inventory | $806.0M | $757.0M | $784.0M |
Prepaid Expenses | |||
Receivables | $1.932B | $1.563B | $1.418B |
Other Receivables | $1.196B | $486.0M | $442.0M |
Total Short-Term Assets | $6.398B | $5.441B | $5.895B |
YoY Change | 17.59% | 6.06% | 34.87% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $29.94B | $27.34B | $26.65B |
YoY Change | 9.51% | 5.92% | 5.2% |
Goodwill | $2.625B | ||
YoY Change | 0.0% | ||
Intangibles | |||
YoY Change | |||
Long-Term Investments | $732.0M | $55.00M | $732.0M |
YoY Change | 1.1% | -92.31% | 3.24% |
Other Assets | $12.54B | $859.0M | $13.60B |
YoY Change | -3.31% | -93.52% | 11.7% |
Total Long-Term Assets | $45.84B | $43.74B | $43.61B |
YoY Change | 4.81% | 3.12% | 6.77% |
TOTAL ASSETS | |||
Total Short-Term Assets | $6.398B | $5.441B | $5.895B |
Total Long-Term Assets | $45.84B | $43.74B | $43.61B |
Total Assets | $52.24B | $49.18B | $49.50B |
YoY Change | 6.22% | 3.44% | 9.48% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $1.373B | $1.345B | $1.075B |
YoY Change | 2.08% | -5.01% | -15.88% |
Accrued Expenses | $1.040B | $923.0M | $888.0M |
YoY Change | 12.68% | -19.81% | -39.84% |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $225.0M | $155.0M | $140.0M |
YoY Change | 45.16% | -26.54% | -24.32% |
Long-Term Debt Due | $599.0M | $1.054B | $1.464B |
YoY Change | -43.17% | 202.87% | 179.39% |
Total Short-Term Liabilities | $4.240B | $4.238B | $4.444B |
YoY Change | 0.05% | 11.2% | 3.66% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $12.09B | $11.00B | $11.50B |
YoY Change | 5.4% | -13.28% | -7.03% |
Other Long-Term Liabilities | $15.73B | $1.309B | $15.21B |
YoY Change | 4.28% | -91.31% | 32.3% |
Total Long-Term Liabilities | $27.82B | $12.30B | $26.71B |
YoY Change | 4.76% | -55.66% | 11.92% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $4.240B | $4.238B | $4.444B |
Total Long-Term Liabilities | $27.82B | $12.30B | $26.71B |
Total Liabilities | $38.68B | $36.45B | $37.01B |
YoY Change | 5.86% | -0.13% | 10.07% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $8.134B | ||
YoY Change | |||
Common Stock | $8.923B | ||
YoY Change | |||
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | $2.328B | ||
YoY Change | |||
Treasury Stock Shares | 34.70M shares | ||
Shareholders Equity | $13.56B | $12.64B | $12.49B |
YoY Change | |||
Total Liabilities & Shareholders Equity | $52.24B | $49.18B | $49.50B |
YoY Change | 6.22% | 3.44% | 9.48% |
Cashflow Statement
Concept | 2010 | 2009 Q4 | 2009 Q3 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | $2.563B | $581.0M | $757.0M |
YoY Change | -5.32% | -17.82% | 8.14% |
Depreciation, Depletion And Amortization | $2.075B | $666.0M | $242.0M |
YoY Change | 13.14% | 14.24% | -61.53% |
Cash From Operating Activities | $5.244B | $1.465B | $1.582B |
YoY Change | -13.95% | -32.92% | -41.26% |
INVESTING ACTIVITIES | |||
Capital Expenditures | $3.326B | -$1.021B | -$808.0M |
YoY Change | 1.62% | 22.28% | 4.8% |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | -$39.00M | -$53.00M | -$30.00M |
YoY Change | 550.0% | -19.7% | 328.57% |
Cash From Investing Activities | -$3.894B | -$1.074B | -$838.0M |
YoY Change | 12.61% | 19.2% | 7.71% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | $0.00 | ||
YoY Change | |||
Debt Paid & Issued, Net | $828.0M | ||
YoY Change | -53.3% | ||
Cash From Financing Activities | -$1.748B | -755.0M | -208.0M |
YoY Change | -7.85% | 289.18% | -89.93% |
NET CHANGE | |||
Cash From Operating Activities | $5.244B | 1.465B | 1.582B |
Cash From Investing Activities | -$3.894B | -1.074B | -838.0M |
Cash From Financing Activities | -$1.748B | -755.0M | -208.0M |
Net Change In Cash | -$398.0M | -364.0M | 536.0M |
YoY Change | -153.86% | -133.43% | -457.33% |
FREE CASH FLOW | |||
Cash From Operating Activities | $5.244B | $1.465B | $1.582B |
Capital Expenditures | $3.326B | -$1.021B | -$808.0M |
Free Cash Flow | $1.918B | $2.486B | $2.390B |
YoY Change | -32.01% | -17.65% | -31.0% |
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2010 | us-gaap |
Other Depreciation And Amortization
OtherDepreciationAndAmortization
|
2075000000 | USD |
CY2010 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
808000000 | USD |
CY2010 | us-gaap |
Fuel Costs
FuelCosts
|
2010000000 | USD |
CY2010 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
4453000000 | USD |
CY2010 | exc |
Other Cost And Expense Operating Regulatory Required Programs
OtherCostAndExpenseOperatingRegulatoryRequiredPrograms
|
147000000 | USD |
CY2010 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
13918000000 | USD |
CY2010 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
4726000000 | USD |
CY2010 | us-gaap |
Interest Expense
InterestExpense
|
792000000 | USD |
CY2010 | exc |
Interest Expense To Affiliates Net
InterestExpenseToAffiliatesNet
|
25000000 | USD |
CY2010 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
0 | USD |
CY2011Q1 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
661862913 | shares |
CY2010 | exc |
Less Than One Million Decrease
LessThanOneMillionDecrease
|
1000000 | USD |
CY2010 | us-gaap |
Revenues
Revenues
|
18644000000 | USD |
CY2010 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
4425000000 | USD |
CY2010 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
312000000 | USD |
CY2010 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-505000000 | USD |
CY2010 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
1658000000 | USD |
CY2010 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
2563000000 | USD |
CY2010 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax
DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax
|
0 | USD |
CY2010 | us-gaap |
Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax
DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
|
0 | USD |
CY2010 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
CY2010 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
661000000 | shares |
CY2010 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
663000000 | shares |
CY2010 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
3.88 | |
CY2010 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
3.87 | |
CY2010 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
2.10 | |
CY2009 | us-gaap |
Revenues
Revenues
|
17318000000 | USD |
CY2009 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
3215000000 | USD |
CY2009 | us-gaap |
Fuel Costs
FuelCosts
|
2066000000 | USD |
CY2009 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
4612000000 | USD |
CY2009 | exc |
Other Cost And Expense Operating Regulatory Required Programs
OtherCostAndExpenseOperatingRegulatoryRequiredPrograms
|
63000000 | USD |
CY2009 | us-gaap |
Other Depreciation And Amortization
OtherDepreciationAndAmortization
|
1834000000 | USD |
CY2009 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
778000000 | USD |
CY2009 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
12568000000 | USD |
CY2009 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
4750000000 | USD |
CY2009 | us-gaap |
Interest Expense
InterestExpense
|
654000000 | USD |
CY2009 | exc |
Interest Expense To Affiliates Net
InterestExpenseToAffiliatesNet
|
77000000 | USD |
CY2009 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
-27000000 | USD |
CY2009 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
427000000 | USD |
CY2009 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-331000000 | USD |
CY2009 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
1712000000 | USD |
CY2009 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
2707000000 | USD |
CY2009 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax
DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax
|
0 | USD |
CY2008 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax
DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax
|
-1000000 | USD |
CY2009 | us-gaap |
Net Income Loss
NetIncomeLoss
|
2707000000 | USD |
CY2009 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
659000000 | shares |
CY2008 | us-gaap |
Other Depreciation And Amortization
OtherDepreciationAndAmortization
|
1634000000 | USD |
CY2009 | us-gaap |
Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax
DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
|
0 | USD |
CY2009 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
0 | USD |
CY2009 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
662000000 | shares |
CY2009 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
4.10 | |
CY2009 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
4.09 | |
CY2009 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
2.10 | |
CY2008 | us-gaap |
Revenues
Revenues
|
18859000000 | USD |
CY2008 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
4270000000 | USD |
CY2008 | us-gaap |
Fuel Costs
FuelCosts
|
2312000000 | USD |
CY2008 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
4538000000 | USD |
CY2008 | exc |
Other Cost And Expense Operating Regulatory Required Programs
OtherCostAndExpenseOperatingRegulatoryRequiredPrograms
|
28000000 | USD |
CY2008 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
778000000 | USD |
CY2008 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
13560000000 | USD |
CY2008 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
5299000000 | USD |
CY2008 | us-gaap |
Interest Expense
InterestExpense
|
699000000 | USD |
CY2008 | exc |
Interest Expense To Affiliates Net
InterestExpenseToAffiliatesNet
|
133000000 | USD |
CY2008 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
-26000000 | USD |
CY2008 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-407000000 | USD |
CY2008 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-1265000000 | USD |
CY2008 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
1317000000 | USD |
CY2008 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
2717000000 | USD |
CY2008 | us-gaap |
Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax
DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
|
21000000 | USD |
CY2008 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
20000000 | USD |
CY2008 | us-gaap |
Net Income Loss
NetIncomeLoss
|
2737000000 | USD |
CY2008 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
662000000 | shares |
CY2008 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
4.16 | |
CY2008 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
4.13 | |
CY2008 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
2.03 | |
CY2010 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
3.88 | |
CY2010 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
0 | |
CY2010 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
3.87 | |
CY2010 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0 | |
CY2009 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
4.10 | |
CY2008 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
4.13 | |
CY2009 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
0 | |
CY2008 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
0.03 | |
CY2009 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
4.09 | |
CY2008 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
4.10 | |
CY2009 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0 | |
CY2008 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.03 | |
CY2010 | us-gaap |
Net Income Loss
NetIncomeLoss
|
2563000000 | USD |
CY2008 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
658000000 | shares |
CY2010 | us-gaap |
Discontinued Operation Tax Effect Of Income Loss From Discontinued Operation During Phase Out Period
DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod
|
0 | USD |
CY2010 | us-gaap |
Discontinued Operation Tax Effect Of Income Loss From Disposal Of Discontinued Operation
DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation
|
0 | USD |
CY2009 | us-gaap |
Discontinued Operation Tax Effect Of Income Loss From Discontinued Operation During Phase Out Period
DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod
|
0 | USD |
CY2009 | us-gaap |
Discontinued Operation Tax Effect Of Income Loss From Disposal Of Discontinued Operation
DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation
|
0 | USD |
CY2008 | us-gaap |
Discontinued Operation Tax Effect Of Income Loss From Discontinued Operation During Phase Out Period
DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod
|
1000000 | USD |
CY2008 | us-gaap |
Discontinued Operation Tax Effect Of Income Loss From Disposal Of Discontinued Operation
DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation
|
14000000 | USD |
CY2010 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Domestic
IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
|
4221000000 | USD |
CY2009 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Domestic
IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
|
4419000000 | USD |
CY2008 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Domestic
IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
|
4034000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax
OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax
|
-11000000 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax
OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax
|
-13000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax
OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax
|
-9000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax
|
114000000 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax
|
93000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Net Of Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax
|
60000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plan Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Net Of Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax
|
3000000 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plan Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Net Of Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax
|
3000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plan Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Net Of Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax
|
3000000 | USD |
CY2010 | exc |
Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Net Of Tax
OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentNetOfTax
|
288000000 | USD |
CY2009 | exc |
Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Net Of Tax
OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentNetOfTax
|
-86000000 | USD |
CY2008 | exc |
Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Net Of Tax
OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentNetOfTax
|
1459000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
-151000000 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
-12000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
855000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
-1000000 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
5000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
-7000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Period Increase Decrease
OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease
|
-334000000 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Period Increase Decrease
OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease
|
162000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Period Increase Decrease
OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease
|
-557000000 | USD |
CY2010 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
2229000000 | USD |
CY2009 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
2869000000 | USD |
CY2008 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
2180000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax
OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax
|
-7000000 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax
OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax
|
-6000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax
OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax
|
-6000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax
|
79000000 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax
|
74000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax
|
52000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plant Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlantNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostTax
|
2000000 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plant Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlantNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostTax
|
2000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Reclassification Of Defined Benefit Plant Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Tax
OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlantNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostTax
|
2000000 | USD |
CY2010 | exc |
Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Tax
OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentTax
|
-188000000 | USD |
CY2009 | exc |
Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Tax
OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentTax
|
47000000 | USD |
CY2008 | exc |
Other Comprehensive Income Pension And Non Pension Postretirement Benefit Plan Valuation Adjustment Tax
OtherComprehensiveIncomePensionAndNonPensionPostretirementBenefitPlanValuationAdjustmentTax
|
-959000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
-107000000 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
-2000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
563000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
0 | USD |
CY2009 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
3000000 | USD |
CY2008 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
-6000000 | USD |
CY2010 | dei |
Entity Registrant Name
EntityRegistrantName
|
EXELON CORP | |
CY2010 | dei |
Entity Central Index Key
EntityCentralIndexKey
|
0001109357 | |
CY2010 | dei |
Document Type
DocumentType
|
10-K | |
CY2010 | dei |
Document Period End Date
DocumentPeriodEndDate
|
2010-12-31 | |
CY2010 | dei |
Amendment Flag
AmendmentFlag
|
false | |
CY2010 | dei |
Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
|
Yes | |
CY2010 | dei |
Entity Voluntary Filers
EntityVoluntaryFilers
|
No | |
CY2010 | dei |
Entity Current Reporting Status
EntityCurrentReportingStatus
|
Yes | |
CY2010 | dei |
Entity Filer Category
EntityFilerCategory
|
Large Accelerated Filer | |
CY2010Q4 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
659079914 | shares |
CY2010Q4 | dei |
Entity Public Float
EntityPublicFloat
|
59092745316 | USD |
CY2010 | dei |
Trading Symbol
TradingSymbol
|
EXC | |
CY2010 | dei |
Document Fiscal Year Focus
DocumentFiscalYearFocus
|
2010 | |
CY2010 | dei |
Document Fiscal Period Focus
DocumentFiscalPeriodFocus
|
Q4 | |
CY2010 | dei |
Current Fiscal Year End Date
CurrentFiscalYearEndDate
|
--12-31 | |
CY2010 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2943000000 | USD |
CY2010 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
0 | USD |
CY2010 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
981000000 | USD |
CY2010 | us-gaap |
Unrealized Gain Loss On Derivatives
UnrealizedGainLossOnDerivatives
|
88000000 | USD |
CY2010 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
105000000 | USD |
CY2010 | us-gaap |
Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other
AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther
|
609000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
232000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
62000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
472000000 | USD |
CY2010 | exc |
Changes In Option Premiums Collected Received
ChangesInOptionPremiumsCollectedReceived
|
124000000 | USD |
CY2010 | exc |
Increase Decrease In Counterparty Collateral Net
IncreaseDecreaseInCounterpartyCollateralNet
|
155000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
|
-543000000 | USD |
CY2010 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
959000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
56000000 | USD |
CY2010 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
5244000000 | USD |
CY2010 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
3326000000 | USD |
CY2010 | us-gaap |
Proceeds From Sale And Maturity Of Other Investments
ProceedsFromSaleAndMaturityOfOtherInvestments
|
3764000000 | USD |
CY2010 | us-gaap |
Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
|
3907000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
|
-423000000 | USD |
CY2010 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-39000000 | USD |
CY2010 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-3894000000 | USD |
CY2010 | us-gaap |
Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less
ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess
|
-155000000 | USD |
CY2010 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
1398000000 | USD |
CY2010 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
828000000 | USD |
CY2010 | us-gaap |
Repayments Of Other Long Term Debt
RepaymentsOfOtherLongTermDebt
|
806000000 | USD |
CY2010 | us-gaap |
Repayments Of Related Party Debt
RepaymentsOfRelatedPartyDebt
|
0 | USD |
CY2010 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
1389000000 | USD |
CY2010 | us-gaap |
Proceeds From Stock Plans
ProceedsFromStockPlans
|
48000000 | USD |
CY2010 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-16000000 | USD |
CY2010 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-1748000000 | USD |
CY2010 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-398000000 | USD |
CY2009Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
2010000000 | USD |
CY2010Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1612000000 | USD |
CY2009 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2601000000 | USD |
CY2008 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2308000000 | USD |
CY2009 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
223000000 | USD |
CY2008 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
0 | USD |
CY2009 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
756000000 | USD |
CY2008 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
374000000 | USD |
CY2009 | us-gaap |
Unrealized Gain Loss On Derivatives
UnrealizedGainLossOnDerivatives
|
95000000 | USD |
CY2008 | us-gaap |
Unrealized Gain Loss On Derivatives
UnrealizedGainLossOnDerivatives
|
515000000 | USD |
CY2009 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
207000000 | USD |
CY2008 | us-gaap |
Gain Loss On Investments
GainLossOnInvestments
|
-363000000 | USD |
CY2009 | us-gaap |
Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other
AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther
|
652000000 | USD |
CY2008 | us-gaap |
Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other
AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther
|
870000000 | USD |
CY2009 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-234000000 | USD |
CY2008 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-67000000 | USD |
CY2009 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-51000000 | USD |
CY2008 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
109000000 | USD |
CY2009 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
-254000000 | USD |
CY2008 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
-44000000 | USD |
CY2009 | exc |
Changes In Option Premiums Collected Received
ChangesInOptionPremiumsCollectedReceived
|
40000000 | USD |
CY2008 | exc |
Changes In Option Premiums Collected Received
ChangesInOptionPremiumsCollectedReceived
|
124000000 | USD |
CY2009 | exc |
Increase Decrease In Counterparty Collateral Net
IncreaseDecreaseInCounterpartyCollateralNet
|
-196000000 | USD |
CY2008 | exc |
Increase Decrease In Counterparty Collateral Net
IncreaseDecreaseInCounterpartyCollateralNet
|
-1027000000 | USD |
CY2009 | us-gaap |
Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
|
-29000000 | USD |
CY2008 | us-gaap |
Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
|
-38000000 | USD |
CY2009 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
588000000 | USD |
CY2008 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
230000000 | USD |
CY2009 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
113000000 | USD |
CY2008 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
135000000 | USD |
CY2009 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
6094000000 | USD |
CY2008 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
6551000000 | USD |
CY2009 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
3273000000 | USD |
CY2008 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
3117000000 | USD |
CY2009 | us-gaap |
Proceeds From Sale And Maturity Of Other Investments
ProceedsFromSaleAndMaturityOfOtherInvestments
|
4292000000 | USD |
CY2008 | us-gaap |
Proceeds From Sale And Maturity Of Other Investments
ProceedsFromSaleAndMaturityOfOtherInvestments
|
10657000000 | USD |
CY2009 | us-gaap |
Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
|
4531000000 | USD |
CY2008 | us-gaap |
Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
|
10942000000 | USD |
CY2009 | us-gaap |
Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
|
-35000000 | USD |
CY2008 | us-gaap |
Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
|
-29000000 | USD |
CY2009 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-6000000 | USD |
CY2008 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
5000000 | USD |
CY2009 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-3458000000 | USD |
CY2008 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-3378000000 | USD |
CY2009 | us-gaap |
Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less
ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess
|
-56000000 | USD |
CY2008 | us-gaap |
Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less
ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess
|
-405000000 | USD |
CY2009 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
1987000000 | USD |
CY2008 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
2265000000 | USD |
CY2009 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
1773000000 | USD |
CY2008 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
1398000000 | USD |
CY2009 | us-gaap |
Repayments Of Other Long Term Debt
RepaymentsOfOtherLongTermDebt
|
0 | USD |
CY2008 | us-gaap |
Repayments Of Other Long Term Debt
RepaymentsOfOtherLongTermDebt
|
0 | USD |
CY2009 | us-gaap |
Repayments Of Related Party Debt
RepaymentsOfRelatedPartyDebt
|
709000000 | USD |
CY2008 | us-gaap |
Repayments Of Related Party Debt
RepaymentsOfRelatedPartyDebt
|
1038000000 | USD |
CY2009 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
1385000000 | USD |
CY2008 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
1335000000 | USD |
CY2009 | us-gaap |
Proceeds From Stock Plans
ProceedsFromStockPlans
|
42000000 | USD |
CY2008 | us-gaap |
Proceeds From Stock Plans
ProceedsFromStockPlans
|
130000000 | USD |
CY2009 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-3000000 | USD |
CY2008 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
68000000 | USD |
CY2009 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-1897000000 | USD |
CY2008 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-2213000000 | USD |
CY2009 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
739000000 | USD |
CY2008 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
960000000 | USD |
CY2008Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1271000000 | USD |
CY2007Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
311000000 | USD |
CY2010 | us-gaap |
Proceeds From Sale Maturity And Collections Of Investments
ProceedsFromSaleMaturityAndCollectionsOfInvestments
|
28000000 | USD |
CY2009 | us-gaap |
Proceeds From Sale Maturity And Collections Of Investments
ProceedsFromSaleMaturityAndCollectionsOfInvestments
|
41000000 | USD |
CY2008 | us-gaap |
Proceeds From Sale Maturity And Collections Of Investments
ProceedsFromSaleMaturityAndCollectionsOfInvestments
|
0 | USD |
CY2010 | us-gaap |
Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
|
22000000 | USD |
CY2009 | us-gaap |
Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
|
28000000 | USD |
CY2008 | us-gaap |
Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
|
0 | USD |
CY2010 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
CY2009 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
CY2008 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
436000000 | USD |
CY2010 | exc |
Purchase Of Forward Contract In Relation To Certain Treasury Stock
PurchaseOfForwardContractInRelationToCertainTreasuryStock
|
0 | USD |
CY2009 | exc |
Purchase Of Forward Contract In Relation To Certain Treasury Stock
PurchaseOfForwardContractInRelationToCertainTreasuryStock
|
0 | USD |
CY2008 | exc |
Purchase Of Forward Contract In Relation To Certain Treasury Stock
PurchaseOfForwardContractInRelationToCertainTreasuryStock
|
64000000 | USD |
CY2010 | us-gaap |
Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
|
893000000 | USD |
CY2009 | us-gaap |
Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
|
0 | USD |
CY2008 | us-gaap |
Payments To Acquire Businesses Gross
PaymentsToAcquireBusinessesGross
|
0 | USD |
CY2009Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
1563000000 | USD |
CY2009Q4 | us-gaap |
Other Receivables
OtherReceivables
|
486000000 | USD |
CY2009Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
376000000 | USD |
CY2009Q4 | us-gaap |
Restricted Cash And Investments Current
RestrictedCashAndInvestmentsCurrent
|
40000000 | USD |
CY2010Q4 | us-gaap |
Restricted Cash And Investments Current
RestrictedCashAndInvestmentsCurrent
|
30000000 | USD |
CY2010Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
1932000000 | USD |
CY2010Q4 | us-gaap |
Other Receivables
OtherReceivables
|
1196000000 | USD |
CY2010Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
487000000 | USD |
CY2010Q4 | us-gaap |
Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
|
216000000 | USD |
CY2010Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
590000000 | USD |
CY2010Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
335000000 | USD |
CY2009Q4 | us-gaap |
Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
|
198000000 | USD |
CY2009Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
559000000 | USD |
CY2009Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
209000000 | USD |
CY2010Q4 | us-gaap |
Assets Current
AssetsCurrent
|
6398000000 | USD |
CY2010Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
29941000000 | USD |
CY2010Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
6408000000 | USD |
CY2010Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
717000000 | USD |
CY2010Q4 | us-gaap |
Investments In Affiliates Subsidiaries Associates And Joint Ventures
InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
|
15000000 | USD |
CY2010Q4 | us-gaap |
Goodwill
Goodwill
|
2625000000 | USD |
CY2010Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
409000000 | USD |
CY2010Q4 | us-gaap |
Assets Held In Trust Noncurrent
AssetsHeldInTrustNoncurrent
|
824000000 | USD |
CY2010Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
763000000 | USD |
CY2010Q4 | exc |
Total Deferred Debits And Other Assets
TotalDeferredDebitsAndOtherAssets
|
15901000000 | USD |
CY2009Q4 | us-gaap |
Assets Current
AssetsCurrent
|
5441000000 | USD |
CY2009Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
27341000000 | USD |
CY2009Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
6669000000 | USD |
CY2009Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
704000000 | USD |
CY2009Q4 | us-gaap |
Investments In Affiliates Subsidiaries Associates And Joint Ventures
InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
|
20000000 | USD |
CY2009Q4 | us-gaap |
Goodwill
Goodwill
|
2625000000 | USD |
CY2009Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
649000000 | USD |
CY2009Q4 | us-gaap |
Assets Held In Trust Noncurrent
AssetsHeldInTrustNoncurrent
|
0 | USD |
CY2009Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
859000000 | USD |
CY2009Q4 | exc |
Total Deferred Debits And Other Assets
TotalDeferredDebitsAndOtherAssets
|
16398000000 | USD |
CY2010Q4 | us-gaap |
Assets
Assets
|
52240000000 | USD |
CY2009Q4 | us-gaap |
Assets
Assets
|
49180000000 | USD |
CY2010Q4 | us-gaap |
Pledged Assets Not Separately Reported Finance Receivables
PledgedAssetsNotSeparatelyReportedFinanceReceivables
|
346000000 | USD |
CY2010Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
4140000000 | USD |
CY2009Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
4872000000 | USD |
CY2010Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
0 | USD |
CY2010Q4 | us-gaap |
Other Notes Payable Current
OtherNotesPayableCurrent
|
225000000 | USD |
CY2010Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
|
599000000 | USD |
CY2010Q4 | us-gaap |
Longterm Transition Bond Current
LongtermTransitionBondCurrent
|
0 | USD |
CY2010Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1373000000 | USD |
CY2010Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
38000000 | USD |
CY2010Q4 | us-gaap |
Accrued Liabilities Current
AccruedLiabilitiesCurrent
|
1040000000 | USD |
CY2010Q4 | us-gaap |
Deferred Tax Liabilities Current
DeferredTaxLiabilitiesCurrent
|
85000000 | USD |
CY2010Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
880000000 | USD |
CY2009Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
155000000 | USD |
CY2009Q4 | us-gaap |
Other Notes Payable Current
OtherNotesPayableCurrent
|
0 | USD |
CY2009Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
|
639000000 | USD |
CY2009Q4 | us-gaap |
Longterm Transition Bond Current
LongtermTransitionBondCurrent
|
415000000 | USD |
CY2009Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1345000000 | USD |
CY2009Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
198000000 | USD |
CY2009Q4 | us-gaap |
Accrued Liabilities Current
AccruedLiabilitiesCurrent
|
923000000 | USD |
CY2009Q4 | us-gaap |
Deferred Tax Liabilities Current
DeferredTaxLiabilitiesCurrent
|
152000000 | USD |
CY2009Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
411000000 | USD |
CY2010Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
4240000000 | USD |
CY2009Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
4238000000 | USD |
CY2010Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
11614000000 | USD |
CY2010Q4 | us-gaap |
Due To Related Parties Noncurrent
DueToRelatedPartiesNoncurrent
|
390000000 | USD |
CY2009Q4 | us-gaap |
Due To Related Parties Noncurrent
DueToRelatedPartiesNoncurrent
|
390000000 | USD |
CY2009Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
10995000000 | USD |
CY2010Q4 | exc |
Deferred Income Taxes And Unamortized Investment Tax Credits
DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits
|
6621000000 | USD |
CY2010Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
3494000000 | USD |
CY2010Q4 | us-gaap |
Defined Benefit Pension Plan Liabilities Noncurrent
DefinedBenefitPensionPlanLiabilitiesNoncurrent
|
3658000000 | USD |
CY2010Q4 | us-gaap |
Other Postretirement Defined Benefit Plan Liabilities Noncurrent
OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent
|
2218000000 | USD |
CY2010Q4 | us-gaap |
Spent Nuclear Fuel Obligation Noncurrent
SpentNuclearFuelObligationNoncurrent
|
1018000000 | USD |
CY2010Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
3555000000 | USD |
CY2010Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
21000000 | USD |
CY2010Q4 | exc |
Payable To Zionsoultions
PayableToZionsoultions
|
659000000 | USD |
CY2010Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
1102000000 | USD |
CY2009Q4 | exc |
Deferred Income Taxes And Unamortized Investment Tax Credits
DeferredIncomeTaxesAndUnamortizedInvestmentTaxCredits
|
5750000000 | USD |
CY2009Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
3434000000 | USD |
CY2009Q4 | us-gaap |
Defined Benefit Pension Plan Liabilities Noncurrent
DefinedBenefitPensionPlanLiabilitiesNoncurrent
|
3625000000 | USD |
CY2009Q4 | us-gaap |
Other Postretirement Defined Benefit Plan Liabilities Noncurrent
OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent
|
2180000000 | USD |
CY2009Q4 | us-gaap |
Spent Nuclear Fuel Obligation Noncurrent
SpentNuclearFuelObligationNoncurrent
|
1017000000 | USD |
CY2009Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
3492000000 | USD |
CY2009Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
23000000 | USD |
CY2009Q4 | exc |
Payable To Zionsoultions
PayableToZionsoultions
|
0 | USD |
CY2009Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
1309000000 | USD |
CY2010Q4 | exc |
Total Deferred Credits And Other Liabilities
TotalDeferredCreditsAndOtherLiabilities
|
22346000000 | USD |
CY2009Q4 | exc |
Total Deferred Credits And Other Liabilities
TotalDeferredCreditsAndOtherLiabilities
|
20830000000 | USD |
CY2010Q4 | us-gaap |
Liabilities
Liabilities
|
38590000000 | USD |
CY2009Q4 | us-gaap |
Liabilities
Liabilities
|
36453000000 | USD |
CY2010 | us-gaap |
Commitments And Contingencies2009
CommitmentsAndContingencies2009
|
 - | |
CY2009 | us-gaap |
Commitments And Contingencies2009
CommitmentsAndContingencies2009
|
 - | |
CY2010Q4 | us-gaap |
Temporary Equity Carrying Amount
TemporaryEquityCarryingAmount
|
87000000 | USD |
CY2009Q4 | us-gaap |
Temporary Equity Carrying Amount
TemporaryEquityCarryingAmount
|
87000000 | USD |
CY2010Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
9006000000 | USD |
CY2009Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
8923000000 | USD |
CY2010Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
2327000000 | USD |
CY2009Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
2328000000 | USD |
CY2010Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
9304000000 | USD |
CY2010Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-2423000000 | USD |
CY2009Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
8134000000 | USD |
CY2009Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-2089000000 | USD |
CY2010Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
13560000000 | USD |
CY2009Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
12640000000 | USD |
CY2010Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
52240000000 | USD |
CY2009Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
49180000000 | USD |
CY2010Q4 | us-gaap |
Common Stock No Par Value
CommonStockNoParValue
|
0 | |
CY2010Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
661845411 | shares |
CY2010Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
34743157 | shares |
CY2009Q4 | us-gaap |
Common Stock No Par Value
CommonStockNoParValue
|
0 | |
CY2009Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
659798515 | shares |
CY2009Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
34700000 | shares |
CY2010Q4 | exc |
Common Stock Shares Purchased Under Two Thousand Four Repurchase Plan
CommonStockSharesPurchasedUnderTwoThousandFourRepurchasePlan
|
0 | shares |
CY2010Q4 | exc |
Common Stock Value Purchased Under Two Thousand Four Repurchase Plan
CommonStockValuePurchasedUnderTwoThousandFourRepurchasePlan
|
2300000000 | USD |
CY2010Q4 | us-gaap |
Minority Interest
MinorityInterest
|
3000000 | USD |
CY2009Q4 | us-gaap |
Minority Interest
MinorityInterest
|
0 | USD |
CY2010Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
13563000000 | USD |
CY2009Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
12640000000 | USD |
CY2010Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
2000000000 | shares |
CY2009Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
2000000000 | shares |
CY2008 | exc |
Stock Issued During Period Value Long Term Incentive Plan Activity
StockIssuedDuringPeriodValueLongTermIncentivePlanActivity
|
217000000 | USD |
CY2008 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
1007000000 | USD |
CY2009 | exc |
Stock Issued During Period Value Long Term Incentive Plan Activity
StockIssuedDuringPeriodValueLongTermIncentivePlanActivity
|
90000000 | USD |
CY2009 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
1388000000 | USD |
CY2010 | exc |
Stock Issued During Period Value Long Term Incentive Plan Activity
StockIssuedDuringPeriodValueLongTermIncentivePlanActivity
|
60000000 | USD |
CY2010 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
1392000000 | USD |
CY2008 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
19000000 | USD |
CY2008 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
-499000000 | USD |
CY2008 | us-gaap |
Cumulative Effect Of Initial Adoption Of Sfas159
CumulativeEffectOfInitialAdoptionOfSFAS159
|
0 | USD |
CY2008 | exc |
Cumulative Effect Of Initial Adoption Of Sfas159 Tax
CumulativeEffectOfInitialAdoptionOfSfas159Tax
|
286000000 | USD |
CY2010 | exc |
Minority Interest Increase From Acquisition
MinorityInterestIncreaseFromAcquisition
|
3000000 | USD |
CY2007Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
10137000000 | USD |
CY2008Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
11047000000 | USD |
CY2009 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
22000000 | USD |
CY2010 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
23000000 | USD |
CY2010 | us-gaap |
Nature Of Operations
NatureOfOperations
|
<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:10pt;font-weight:bold;margin-left:0px;">1</font><font style="font-family:Arial;font-size:10pt;font-weight:bold;">. Significant Accounting Policies </font><font style="font-family:Arial;font-size:10pt;font-weight:bold;">(Exelon, Generation, ComEd and PECO)</font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:7.5pt;margin-left:0px;"> </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:10pt;font-weight:bold;margin-left:0px;">Description of Business (Exelon, Generation, ComEd and PECO) </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:7.5pt;margin-left:0px;"> </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:10pt;margin-left:24.5px;">Exelon</font><font style="font-family:Arial;font-size:10pt;"> is a utility services holding company engaged, through its subsidiaries, in the generation and energy delivery businesses discussed below. The generation business consists of the electric generating facilities, the wholesale energy marketing operations and competitive retail supply operations of Generation. The energy delivery businesses include the purchase and regulated retail sale of electricity and the provision of </font><font style="font-family:Arial;font-size:10pt;">transmission and </font><font style="font-family:Arial;font-size:10pt;">distribution services by ComEd in northern Illinois, including the City of Chicago, and by PECO in southeastern Pennsylvania, including the City of Philadelphia, and the purchase and regulated retail sale of natural gas and the provision of distribution services by PECO in the Pennsylvania counties surrounding the City of Philadelphia. </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:7.5pt;margin-left:0px;"> </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:10pt;font-weight:bold;margin-left:0px;">Basis of Presentation (Exelon, Generation, ComEd and PECO) </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:7.5pt;margin-left:0px;"> </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:10pt;margin-left:24.5px;">Through its business services subsidiary, </font><font style="font-family:Arial;font-size:10pt;">BSC, </font><font style="font-family:Arial;font-size:10pt;">Exelon</font><font style="font-family:Arial;font-size:10pt;"> </font><font style="font-family:Arial;font-size:10pt;">provide</font><font style="font-family:Arial;font-size:10pt;">s</font><font style="font-family:Arial;font-size:10pt;"> </font><font style="font-family:Arial;font-size:10pt;">its </font><font style="font-family:Arial;font-size:10pt;">subsidiaries with a variety of support services at cost, including legal, human resources, financial, information technology and supply management services. The costs of BSC, including support services, are directly charged or allocated to the applicable subsidiaries using a cost-causative allocation method. Corporate governance type costs that cannot be directly assigned are allocated based on a Modified Massachusetts formula, which is a method that utilizes a combination </font><font style="font-family:Arial;font-size:10pt;">of gross revenues, total assets</font><font style="font-family:Arial;font-size:10pt;"> and direct labor costs for the allocation base.</font><font style="font-family:Arial;font-size:10pt;"> </font><font style="font-family:Arial;font-size:10pt;">The results of Exelon's corporate operations are presented as “Other” within the consolidated financial statements and include intercompany eliminations unless otherwise disclosed. </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:7.5pt;margin-left:0px;"> </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:10pt;margin-left:24.5px;">Exelon owns </font><font style="font-family:Arial;font-size:10pt;">100</font><font style="font-family:Arial;font-size:10pt;">% of all of its significant consolidated subsidiaries, either directly or indirectly, except for ComEd, of which Exelon owns more than </font><font style="font-family:Arial;font-size:10pt;">99</font><font style="font-family:Arial;font-size:10pt;">%, and PECO, of which Exelon owns </font><font style="font-family:Arial;font-size:10pt;">100</font><font style="font-family:Arial;font-size:10pt;">% of the common stock but none of PECO's preferred s</font><font style="font-family:Arial;font-size:10pt;">ecurities</font><font style="font-family:Arial;font-size:10pt;">. Exelon has reflected the third-party interests in ComEd</font><font style="font-family:Arial;font-size:10pt;">, which totaled less than </font><font style="font-family:Arial;font-size:10pt;">$</font><font style="font-family:Arial;font-size:10pt;">1</font><font style="font-family:Arial;font-size:10pt;"> million at December 31, 2010 and December 31, 2009</font><font style="font-family:Arial;font-size:10pt;">,</font><font style="font-family:Arial;font-size:10pt;"> </font><font style="font-family:Arial;font-size:10pt;">as </font><font style="font-family:Arial;font-size:10pt;">equity</font><font style="font-family:Arial;font-size:10pt;"> and PECO's preferred s</font><font style="font-family:Arial;font-size:10pt;">ecurities</font><font style="font-family:Arial;font-size:10pt;"> as preferred securities of subsidiaries in its consolidated financial statements. </font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><p style='margin-top:12pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:10pt;margin-left:24.5px;">Generation owns </font><font style="font-family:Arial;font-size:10pt;">100</font><font style="font-family:Arial;font-size:10pt;">% of all of its significant consolidated subsidiaries, either directly or indirectly, except for Exelon SHC, Inc., of which Generation owns </font><font style="font-family:Arial;font-size:10pt;">99</font><font style="font-family:Arial;font-size:10pt;">% and the remaining </font><font style="font-family:Arial;font-size:10pt;">1</font><font style="font-family:Arial;font-size:10pt;">% is indirectly owned by Exelon, which is eliminated in Exelon's consolidated financial statements</font><font style="font-family:Arial;font-size:10pt;">; and certain Exelon Wind projects, of which Generation holds a majority interest ranging from </font><font style="font-family:Arial;font-size:10pt;">94</font><font style="font-family:Arial;font-size:10pt;">% to </font><font style="font-family:Arial;font-size:10pt;">99</font><font style="font-family:Arial;font-size:10pt;">%</font><font style="font-family:Arial;font-size:10pt;">, and which is included in Noncontrolling interest on Exelon's and Generation's Consolidated Balance Sheets.</font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:10pt;margin-left:24.5px;">Exelon's </font><font style="font-family:Arial;font-size:10pt;">c</font><font style="font-family:Arial;font-size:10pt;">onsolidated </font><font style="font-family:Arial;font-size:10pt;">f</font><font style="font-family:Arial;font-size:10pt;">inancial </font><font style="font-family:Arial;font-size:10pt;">s</font><font style="font-family:Arial;font-size:10pt;">tatements include the accounts of entities in which Exelon has a controlling financial interest, other than certain financing trusts of ComEd and PECO, and Generation's and PECO's proportionate interests in jointly owned electric utility property, after the elimination of intercompany transactions. A controlling financial interest is evidenced by either a voting interest greater than 50% or the results of a model that identifies Exelon or one of its subsidiaries as the primary beneficiary of a VIE. Investments and joint ventures in which Exelon does not have a controlling financial interest and certain financing trusts of ComEd and PECO are accounted for under the equity or cost method of accounting.</font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p> | |
CY2010Q4 | exc |
Consolidated Subsidiary Ownership Percentage
ConsolidatedSubsidiaryOwnershipPercentage
|
1 | pure |
CY2010Q4 | us-gaap |
Minority Interest Ownership Percentage By Parent
MinorityInterestOwnershipPercentageByParent
|
0.99 | pure |
CY2010Q4 | exc |
Consolidated Subsidiary Common Stock Ownership Percentage
ConsolidatedSubsidiaryCommonStockOwnershipPercentage
|
1 | pure |
CY2010Q4 | exc |
Minority Interest Upper Bound
MinorityInterestUpperBound
|
1000000 | USD |
CY2010 | us-gaap |
Reclassifications
Reclassifications
|
Certain prior year amounts in Exelon’s, Generation’s and ComEd’s Consolidated Statements of Cash Flows and in Exelon’s, ComEd's and PECO's Consolidated Balance Sheets have been reclassified between line items for comparative purposes. The reclassifications did not affect net income or cash flows from operating activities of the Registrants. See Note 19—Supplemental Financial Information for further discussion of the reclassifications to Exelon’s and Generation’s Consolidated Statements of Cash Flows. The Registrants performed an evaluation of subsequent events for the accompanying financial statements and notes included in Part 2, ITEM 8 of this report through February 10, 2011, the date this Report was issued, to determine whether the circumstances warranted recognition and disclosure of those events or transactions in the financial statements as of December 31, 2010. | |
CY2010 | us-gaap |
Use Of Estimates
UseOfEstimates
|
Use of Estimates (Exelon, Generation, ComEd and PECO)   The preparation of financial statements of each of the Registrants in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Areas in which significant estimates have been made include, but are not limited to, the accounting for nuclear decommissioning costs and other AROs, pension and other postretirement benefits, inventory reserves, allowance for uncollectible accounts, goodwill and asset impairments, derivative instruments, fixed asset depreciation, environmental costs, taxes and unbilled energy revenues. Actual results could differ from those estimates. | |
CY2010Q4 | us-gaap |
Equity Method Investment Ownership Percentage
EquityMethodInvestmentOwnershipPercentage
|
0.01 | pure |
CY2008 | us-gaap |
Capitalized Computer Software Amortization
CapitalizedComputerSoftwareAmortization
|
91000000 | USD |
CY2010 | exc |
Other Cost And Expense Operating Consumer Education Costs
OtherCostAndExpenseOperatingConsumerEducationCosts
|
3000000 | USD |
CY2008 | exc |
Other Cost And Expense Operating Energy Efficiency And Demand Response Programs
OtherCostAndExpenseOperatingEnergyEfficiencyAndDemandResponsePrograms
|
25000000 | USD |
CY2010 | exc |
Other Cost And Expense Operating Purchased Power Administrative Costs
OtherCostAndExpenseOperatingPurchasedPowerAdministrativeCosts
|
4000000 | USD |
CY2009 | exc |
Other Cost And Expense Operating Purchased Power Administrative Costs
OtherCostAndExpenseOperatingPurchasedPowerAdministrativeCosts
|
4000000 | USD |
CY2008 | exc |
Other Cost And Expense Operating Purchased Power Administrative Costs
OtherCostAndExpenseOperatingPurchasedPowerAdministrativeCosts
|
3000000 | USD |
CY2010 | exc |
Other Cost And Expense Operating Advanced Metering Infrastructure Pilot Program
OtherCostAndExpenseOperatingAdvancedMeteringInfrastructurePilotProgram
|
5000000 | USD |
CY2010Q4 | exc |
Operating Wind Capacity Acquired By Parent Company
OperatingWindCapacityAcquiredByParentCompany
|
735 | MW |
CY2009Q4 | exc |
Nuclear Fuel Fabrication And Installation Stage
NuclearFuelFabricationAndInstallationStage
|
711000000 | USD |
CY2010Q4 | exc |
Depreciation For Impared Fossil Plants
DepreciationForImparedFossilPlants
|
80000000 | USD |
CY2010 | exc |
Rate Relief Costs
RateReliefCosts
|
15000000 | USD |
CY2010Q4 | exc |
Capitalized Development Costs
CapitalizedDevelopmentCosts
|
20000000 | USD |
CY2010 | exc |
Development Costs Expensed
DevelopmentCostsExpensed
|
6000000 | USD |
CY2009 | exc |
Development Costs Expensed
DevelopmentCostsExpensed
|
23000000 | USD |
CY2008 | exc |
Development Costs Expensed
DevelopmentCostsExpensed
|
26000000 | USD |
CY2010Q4 | exc |
Cost Of Spent Nuclear Fuel Disposal
CostOfSpentNuclearFuelDisposal
|
.001 | USD |
CY2010Q4 | us-gaap |
Capitalized Computer Software Net
CapitalizedComputerSoftwareNet
|
312000000 | USD |
CY2009Q4 | us-gaap |
Capitalized Computer Software Net
CapitalizedComputerSoftwareNet
|
279000000 | USD |
CY2010 | us-gaap |
Capitalized Computer Software Amortization
CapitalizedComputerSoftwareAmortization
|
104000000 | USD |
CY2009 | us-gaap |
Capitalized Computer Software Amortization
CapitalizedComputerSoftwareAmortization
|
105000000 | USD |
CY2010Q4 | exc |
Building Under Capital Lease Gross
BuildingUnderCapitalLeaseGross
|
53000000 | USD |
CY2009Q4 | exc |
Building Under Capital Lease Accumulated Depreciation
BuildingUnderCapitalLeaseAccumulatedDepreciation
|
24000000 | USD |
CY2010 | exc |
Total Interest Expense
TotalInterestExpense
|
861000000 | USD |
CY2010 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
38000000 | USD |
CY2010 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
|
16000000 | USD |
CY2009 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
|
14000000 | USD |
CY2008 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
|
2000000 | USD |
CY2009 | exc |
Total Interest Expense
TotalInterestExpense
|
786000000 | USD |
CY2009 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
50000000 | USD |
CY2008 | exc |
Total Interest Expense
TotalInterestExpense
|
867000000 | USD |
CY2008 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
34000000 | USD |
CY2009 | exc |
Rate Relief Costs
RateReliefCosts
|
53000000 | USD |
CY2008 | exc |
Rate Relief Costs
RateReliefCosts
|
137000000 | USD |
exc |
Other Rate Relief Programs
OtherRateReliefPrograms
|
1000000000 | USD | |
CY2010Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
4150000000 | USD |
CY2010Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
3599000000 | USD |
CY2009Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
4928000000 | USD |
CY2009Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
3525000000 | USD |
CY2010 | exc |
Other Cost And Expense Operating Energy Efficiency And Demand Response Programs
OtherCostAndExpenseOperatingEnergyEfficiencyAndDemandResponsePrograms
|
135000000 | USD |
CY2009 | exc |
Other Cost And Expense Operating Energy Efficiency And Demand Response Programs
OtherCostAndExpenseOperatingEnergyEfficiencyAndDemandResponsePrograms
|
59000000 | USD |
CY2010Q4 | exc |
Building Under Capital Lease Net
BuildingUnderCapitalLeaseNet
|
26000000 | USD |
CY2010Q4 | exc |
Building Under Capital Lease Accumulated Depreciation
BuildingUnderCapitalLeaseAccumulatedDepreciation
|
27000000 | USD |
CY2010Q4 | exc |
Accumulated Depreciation For Regulated Property
AccumulatedDepreciationForRegulatedProperty
|
4955000000 | USD |
CY2009Q4 | exc |
Accumulated Depreciation For Regulated Property
AccumulatedDepreciationForRegulatedProperty
|
4565000000 | USD |
CY2010Q4 | exc |
Accumulated Amortization Nuclear Fuel
AccumulatedAmortizationNuclearFuel
|
1592000000 | USD |
CY2009Q4 | exc |
Building Under Capital Lease Net
BuildingUnderCapitalLeaseNet
|
29000000 | USD |
CY2009Q4 | exc |
Accumulated Amortization Nuclear Fuel
AccumulatedAmortizationNuclearFuel
|
1383000000 | USD |
CY2010Q4 | exc |
Nuclear Fuel Fabrication And Installation Stage
NuclearFuelFabricationAndInstallationStage
|
651000000 | USD |
CY2010 | exc |
Com Ed Customer Rate Relief Costs
ComEdCustomerRateReliefCosts
|
15000000 | USD |
CY2009 | exc |
Com Ed Customer Rate Relief Costs
ComEdCustomerRateReliefCosts
|
53000000 | USD |
CY2008 | exc |
Com Ed Customer Rate Relief Costs
ComEdCustomerRateReliefCosts
|
137000000 | USD |
CY2010Q4 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
|
700000000 | USD |
CY2010Q4 | exc |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Working Capital
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkingCapital
|
18000000 | USD |
CY2010Q4 | exc |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Asset Retirement Obligation
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetRetirementObligation
|
13000000 | USD |
CY2010Q4 | exc |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Assets And Liabilities
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsAndLiabilities
|
1000000 | USD |
CY2010Q4 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
|
925000000 | USD |
CY2010Q4 | us-gaap |
Business Combination Consideration Transferred
BusinessCombinationConsiderationTransferred
|
925000000 | USD |
CY2010Q4 | us-gaap |
Business Acquisition Contingent Consideration At Fair Value
BusinessAcquisitionContingentConsiderationAtFairValue
|
32000000 | USD |
CY2010Q4 | us-gaap |
Business Combination Acquisition Of Less Than100 Percent Noncontrolling Interest Fair Value
BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue
|
3000000 | USD |
CY2010Q4 | us-gaap |
Business Acquisition Cost Of Acquired Entity Cash Paid
BusinessAcquisitionCostOfAcquiredEntityCashPaid
|
893000000 | USD |
CY2010Q4 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangibles
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
|
224000000 | USD |
CY2010Q3 | exc |
Long Term Debt Issued Retired
LongTermDebtIssuedRetired
|
900000000 | USD |
CY2010Q4 | us-gaap |
Business Acquisition Contingent Consideration Potential Cash Payment
BusinessAcquisitionContingentConsiderationPotentialCashPayment
|
40000000 | USD |
CY2010Q4 | exc |
Additional Wind Projects To Be Acquired By Parent Company In Advance Stages Of Development
AdditionalWindProjectsToBeAcquiredByParentCompanyInAdvanceStagesOfDevelopment
|
230 | MW |
CY2010Q4 | us-gaap |
Business Combination Acquired Receivables Gross Contractual Amount
BusinessCombinationAcquiredReceivablesGrossContractualAmount
|
24000000 | USD |
CY2010Q4 | us-gaap |
Business Acquisition Cost Of Acquired Entity Transaction Costs
BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
|
11000000 | USD |
CY2010Q4 | exc |
Business Acquisition Contingent Consideration At Fair Value Current
BusinessAcquisitionContingentConsiderationAtFairValueCurrent
|
16000000 | USD |
CY2010Q4 | us-gaap |
Unbilled Contracts Receivable
UnbilledContractsReceivable
|
1060000000 | USD |
CY2010Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
-228000000 | USD |
CY2009Q4 | us-gaap |
Unbilled Contracts Receivable
UnbilledContractsReceivable
|
1035000000 | USD |
CY2009Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
-225000000 | USD |
CY2010Q4 | us-gaap |
Pledged Assets Separately Reported On Statement Of Financial Position At Fair Value
PledgedAssetsSeparatelyReportedOnStatementOfFinancialPositionAtFairValue
|
225000000 | USD |
CY2010Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
10064000000 | USD |
CY2009Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
9023000000 | USD |
CY2010Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
40005000000 | USD |
CY2009Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
36364000000 | USD |
CY2009Q4 | exc |
Depreciation For Impared Fossil Plants
DepreciationForImparedFossilPlants
|
32000000 | USD |
CY2009Q1 | exc |
Impairment Of Fossil Plants
ImpairmentOfFossilPlants
|
223000000 | USD |
CY2010 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | USD |
CY2008Q4 | us-gaap |
Goodwill
Goodwill
|
2625000000 | USD |
CY2009 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | USD |
CY2010Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
386000000 | USD |
CY2010Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
94000000 | USD |
CY2010Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
292000000 | USD |
CY2010 | us-gaap |
Future Amortization Expense Year One
FutureAmortizationExpenseYearOne
|
19000000 | USD |
CY2010 | us-gaap |
Future Amortization Expense Year Two
FutureAmortizationExpenseYearTwo
|
20000000 | USD |
CY2010 | us-gaap |
Future Amortization Expense Year Three
FutureAmortizationExpenseYearThree
|
21000000 | USD |
CY2010 | us-gaap |
Future Amortization Expense Year Four
FutureAmortizationExpenseYearFour
|
21000000 | USD |
CY2010 | us-gaap |
Future Amortization Expense Year Five
FutureAmortizationExpenseYearFive
|
21000000 | USD |
CY2010 | us-gaap |
Finite Lived Intangible Assets Amortization Expense
FiniteLivedIntangibleAssetsAmortizationExpense
|
8000000 | USD |
CY2009 | us-gaap |
Finite Lived Intangible Assets Amortization Expense
FiniteLivedIntangibleAssetsAmortizationExpense
|
7000000 | USD |
CY2008 | us-gaap |
Finite Lived Intangible Assets Amortization Expense
FiniteLivedIntangibleAssetsAmortizationExpense
|
7000000 | USD |
CY2010 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
|
-1000000 | USD |
CY2010 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Transfers Out
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityTransfersOut
|
13000000 | USD |
CY2010 | exc |
Other Derivatives Not Designated As Hedging Instruments Reclassification To Realized At Settlement
OtherDerivativesNotDesignatedAsHedgingInstrumentsReclassificationToRealizedAtSettlement
|
-304000000 | USD |
CY2010Q4 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangibles
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
|
224000000 | USD |
CY2010 | us-gaap |
Acquired Finite Lived Intangible Asset Weighted Average Useful Life
AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife
|
18 | Years |
CY2009 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
|
337000000 | USD |
CY2009 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Transfers Out
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityTransfersOut
|
-1968000000 | USD |
CY2009Q4 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityValue
|
-46000000 | USD |
CY2010Q4 | us-gaap |
Fair Value Assets Measured On Recurring Basis Cash And Cash Equivalents
FairValueAssetsMeasuredOnRecurringBasisCashAndCashEquivalents
|
1473000000 | USD |
CY2010Q4 | exc |
Fair Value Assets Measured On Recurring Basis Total
FairValueAssetsMeasuredOnRecurringBasisTotal
|
9601000000 | USD |
CY2010Q4 | exc |
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation
FairValueLiabilitiesMeasuredOnRecurringBasisDeferredCompensation
|
76000000 | USD |
CY2010Q4 | exc |
Fair Value Liabilities Measured On Recurring Basis Total
FairValueLiabilitiesMeasuredOnRecurringBasisTotal
|
135000000 | USD |
CY2010Q4 | exc |
Fair Value Asset And Liabilities Measured On Recurring Basis Total Net
FairValueAssetAndLiabilitiesMeasuredOnRecurringBasisTotalNet
|
9466000000 | USD |
CY2009Q4 | us-gaap |
Fair Value Assets Measured On Recurring Basis Cash And Cash Equivalents
FairValueAssetsMeasuredOnRecurringBasisCashAndCashEquivalents
|
1845000000 | USD |
CY2009Q4 | exc |
Fair Value Assets Measured On Recurring Basis Total
FairValueAssetsMeasuredOnRecurringBasisTotal
|
9283000000 | USD |
CY2009Q4 | exc |
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation
FairValueLiabilitiesMeasuredOnRecurringBasisDeferredCompensation
|
82000000 | USD |
CY2009Q4 | exc |
Fair Value Liabilities Measured On Recurring Basis Total
FairValueLiabilitiesMeasuredOnRecurringBasisTotal
|
84000000 | USD |
CY2009Q4 | exc |
Fair Value Asset And Liabilities Measured On Recurring Basis Total Net
FairValueAssetAndLiabilitiesMeasuredOnRecurringBasisTotalNet
|
9199000000 | USD |
CY2010Q4 | exc |
Fair Value Net Assets Liabilities Excluded From Pledged Assets
FairValueNetAssetsLiabilitiesExcludedFromPledgedAssets
|
4000000 | USD |
CY2010Q4 | us-gaap |
Cash Surrender Value Of Life Insurance
CashSurrenderValueOfLifeInsurance
|
25000000 | USD |
CY2010Q4 | exc |
Fair Value Net Assets Liabilities Excluded From Nuclear Decommissioning Trust Fund Investments
FairValueNetAssetsLiabilitiesExcludedFromNuclearDecommissioningTrustFundInvestments
|
32000000 | USD |
CY2009Q4 | us-gaap |
Servicing Liability At Fair Value Amount
ServicingLiabilityAtFairValueAmount
|
2000000 | USD |
CY2009Q4 | exc |
Fair Value Net Assets Liabilities Excluded From Nuclear Decommissioning Trust Fund Investments
FairValueNetAssetsLiabilitiesExcludedFromNuclearDecommissioningTrustFundInvestments
|
76000000 | USD |
CY2009Q4 | us-gaap |
Cash Surrender Value Of Life Insurance
CashSurrenderValueOfLifeInsurance
|
23000000 | USD |
CY2010 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossIncludedInEarnings
|
48000000 | USD |
CY2010 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Gain Loss Included In Other Comprehensive Income
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossIncludedInOtherComprehensiveIncome
|
16000000 | USD |
CY2010 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Gain Loss Included In Regulatory Assets Liabilities
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossIncludedInRegulatoryAssetsLiabilities
|
2000000 | USD |
CY2010 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Gain Loss Change In Collateral
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossChangeInCollateral
|
-10000000 | USD |
CY2010 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
|
28000000 | USD |
CY2010Q4 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityValue
|
50000000 | USD |
CY2010 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Total Gain Loss Included In Earnings Attributed To Changes In Unrealized Gains Losses
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityTotalGainLossIncludedInEarningsAttributedToChangesInUnrealizedGainsLosses
|
54000000 | USD |
CY2008Q4 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityValue
|
1324000000 | USD |
CY2009 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossIncludedInEarnings
|
-15000000 | USD |
CY2009 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Gain Loss Included In Other Comprehensive Income
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossIncludedInOtherComprehensiveIncome
|
5000000 | USD |
CY2009 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Gain Loss Included In Regulatory Assets Liabilities
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossIncludedInRegulatoryAssetsLiabilities
|
273000000 | USD |
CY2009 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Gain Loss Change In Collateral
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityGainLossChangeInCollateral
|
-2000000 | USD |
CY2009 | exc |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Liability Total Gain Loss Included In Earnings Attributed To Changes In Unrealized Gains Losses
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityTotalGainLossIncludedInEarningsAttributedToChangesInUnrealizedGainsLosses
|
-79000000 | USD |
CY2009 | exc |
Derivative Gain Loss Reclassified To Earnings Net
DerivativeGainLossReclassifiedToEarningsNet
|
55000000 | USD |
CY2010Q4 | exc |
Cash Flow Hedge Ineffectiveness Adjustment To Accumulated Other Comprehensive Income
CashFlowHedgeIneffectivenessAdjustmentToAccumulatedOtherComprehensiveIncome
|
1000000 | USD |
CY2010 | exc |
Fair Value Treasury Rate Lock Cash Flow Hedge Gain Loss Reclassified To Regulaorty Assets Net Of Tax
FairValueTreasuryRateLockCashFlowHedgeGainLossReclassifiedToRegulaortyAssetsNetOfTax
|
4000000 | USD |
CY2010 | exc |
Fair Value Treasury Rate Lock Cash Flow Hedge Income Tax Reclassified To Deferred Income Tax Liability
FairValueTreasuryRateLockCashFlowHedgeIncomeTaxReclassifiedToDeferredIncomeTaxLiability
|
1000000 | USD |
CY2008 | exc |
Cash Flow Hedge Gain Loss Reclassified To Pretax Net Income From Accumulated Other Comprehensive Income
CashFlowHedgeGainLossReclassifiedToPretaxNetIncomeFromAccumulatedOtherComprehensiveIncome
|
1292000000 | USD |
CY2009 | exc |
Cash Flow Hedge Gain Loss Reclassified To Pretax Net Income From Accumulated Other Comprehensive Income
CashFlowHedgeGainLossReclassifiedToPretaxNetIncomeFromAccumulatedOtherComprehensiveIncome
|
521000000 | USD |
CY2009 | exc |
Change In Cash Flow Hedge Ineffectiveness
ChangeInCashFlowHedgeIneffectiveness
|
15000000 | USD |
CY2008 | exc |
Change In Cash Flow Hedge Ineffectiveness
ChangeInCashFlowHedgeIneffectiveness
|
44000000 | USD |
CY2010 | exc |
Other Derivatives Not Designated As Hedging Instruments Change In Fair Value
OtherDerivativesNotDesignatedAsHedgingInstrumentsChangeInFairValue
|
389000000 | USD |
CY2010 | exc |
Average Interest Rate Computed On A Daily Basis
AverageInterestRateComputedOnADailyBasis
|
0.0072 | pure |
CY2009 | exc |
Average Interest Rate Computed On A Daily Basis
AverageInterestRateComputedOnADailyBasis
|
0.0073 | pure |
CY2009Q4 | exc |
Average Interest Rate At Period End
AverageInterestRateAtPeriodEnd
|
0.0069 | pure |
CY2009 | exc |
Proprietary Trading Volumes
ProprietaryTradingVolumes
|
7578 | GWH |
CY2010 | exc |
Hypothetical Ten Percent Increase
HypotheticalTenPercentIncrease
|
0.1 | pure |
CY2010Q4 | us-gaap |
Interest Rate Fair Value Hedge Asset At Fair Value
InterestRateFairValueHedgeAssetAtFairValue
|
14000000 | USD |
CY2010Q4 | us-gaap |
Interest Rate Derivative Assets At Fair Value
InterestRateDerivativeAssetsAtFairValue
|
14000000 | USD |
CY2009Q4 | us-gaap |
Notional Amount Of Interest Rate Fair Value Hedge Derivatives
NotionalAmountOfInterestRateFairValueHedgeDerivatives
|
100000000 | USD |
CY2009Q4 | us-gaap |
Interest Rate Derivative Assets At Fair Value
InterestRateDerivativeAssetsAtFairValue
|
10000000 | USD |
CY2010Q4 | us-gaap |
Notional Amount Of Interest Rate Fair Value Hedge Derivatives
NotionalAmountOfInterestRateFairValueHedgeDerivatives
|
100000000 | USD |
CY2010Q4 | exc |
Affiliate Derivative Assets Current
AffiliateDerivativeAssetsCurrent
|
0 | USD |
CY2010Q4 | exc |
Affiliate Derivative Assets Noncurrent
AffiliateDerivativeAssetsNoncurrent
|
0 | USD |
CY2010Q4 | exc |
Total Mark To Market Derivative Assets
TotalMarkToMarketDerivativeAssets
|
896000000 | USD |
CY2010Q4 | exc |
Affiliate Derivative Liabilities Current
AffiliateDerivativeLiabilitiesCurrent
|
0 | USD |
CY2010Q4 | exc |
Affiliate Derivative Liabilities Noncurrent
AffiliateDerivativeLiabilitiesNoncurrent
|
0 | USD |
CY2010Q4 | exc |
Total Mark To Market Derivative Liabilities
TotalMarkToMarketDerivativeLiabilities
|
59000000 | USD |
CY2010Q4 | us-gaap |
Derivative Fair Value Of Derivative Net
DerivativeFairValueOfDerivativeNet
|
837000000 | USD |
CY2010Q4 | exc |
Cash Collateral Received Not Offset Against Net Derivative Position
CashCollateralReceivedNotOffsetAgainstNetDerivativePosition
|
1000000 | USD |
CY2009Q4 | exc |
Affiliate Derivative Assets Current
AffiliateDerivativeAssetsCurrent
|
0 | USD |
CY2009Q4 | exc |
Affiliate Derivative Assets Noncurrent
AffiliateDerivativeAssetsNoncurrent
|
0 | USD |
CY2009Q4 | exc |
Total Mark To Market Derivative Assets
TotalMarkToMarketDerivativeAssets
|
1025000000 | USD |
CY2009Q4 | exc |
Affiliate Derivative Liabilities Current
AffiliateDerivativeLiabilitiesCurrent
|
0 | USD |
CY2009Q4 | exc |
Affiliate Derivative Liabilities Noncurrent
AffiliateDerivativeLiabilitiesNoncurrent
|
0 | USD |
CY2009Q4 | exc |
Total Mark To Market Derivative Liabilities
TotalMarkToMarketDerivativeLiabilities
|
221000000 | USD |
CY2009Q4 | us-gaap |
Derivative Fair Value Of Derivative Net
DerivativeFairValueOfDerivativeNet
|
804000000 | USD |
CY2010 | exc |
Cash Flow Hedge Gain Loss Reclassified To Pretax Net Income From Accumulated Other Comprehensive Income
CashFlowHedgeGainLossReclassifiedToPretaxNetIncomeFromAccumulatedOtherComprehensiveIncome
|
754000000 | USD |
CY2010 | exc |
Change In Cash Flow Hedge Ineffectiveness
ChangeInCashFlowHedgeIneffectiveness
|
608500 | USD |
CY2010 | exc |
Other Derivatives Not Designated As Hedging Instruments Gain Loss Net
OtherDerivativesNotDesignatedAsHedgingInstrumentsGainLossNet
|
85000000 | USD |
CY2009 | exc |
Other Derivatives Not Designated As Hedging Instruments Change In Fair Value
OtherDerivativesNotDesignatedAsHedgingInstrumentsChangeInFairValue
|
134000000 | USD |
CY2009 | exc |
Other Derivatives Not Designated As Hedging Instruments Reclassification To Realized At Settlement
OtherDerivativesNotDesignatedAsHedgingInstrumentsReclassificationToRealizedAtSettlement
|
62000000 | USD |
CY2009 | exc |
Other Derivatives Not Designated As Hedging Instruments Gain Loss Net
OtherDerivativesNotDesignatedAsHedgingInstrumentsGainLossNet
|
196000000 | USD |
CY2008 | exc |
Other Derivatives Not Designated As Hedging Instruments Change In Fair Value
OtherDerivativesNotDesignatedAsHedgingInstrumentsChangeInFairValue
|
495000000 | USD |
CY2008 | exc |
Other Derivatives Not Designated As Hedging Instruments Reclassification To Realized At Settlement
OtherDerivativesNotDesignatedAsHedgingInstrumentsReclassificationToRealizedAtSettlement
|
-88000000 | USD |
CY2008 | exc |
Other Derivatives Not Designated As Hedging Instruments Gain Loss Net
OtherDerivativesNotDesignatedAsHedgingInstrumentsGainLossNet
|
407000000 | USD |
CY2010Q4 | exc |
Financial Institutions Credit Risk Exposure
FinancialInstitutionsCreditRiskExposure
|
280000000 | USD |
CY2010Q4 | exc |
Investor Owned Utilities Marketers And Power Producers Credit Risk Exposure
InvestorOwnedUtilitiesMarketersAndPowerProducersCreditRiskExposure
|
515000000 | USD |
CY2010Q4 | exc |
Other Credit Risk Exposure
OtherCreditRiskExposure
|
180000000 | USD |
CY2010Q4 | exc |
Total Counterparty Credit Risk Exposure
TotalCounterpartyCreditRiskExposure
|
975000000 | USD |
CY2009Q4 | exc |
Cash Collateral Received Not Offset Against Net Derivative Position
CashCollateralReceivedNotOffsetAgainstNetDerivativePosition
|
6000000 | USD |
CY2010Q4 | us-gaap |
Commercial Paper
CommercialPaper
|
0 | USD |
CY2009Q4 | us-gaap |
Commercial Paper
CommercialPaper
|
0 | USD |
CY2010 | exc |
Average Interest Rate On Commercial Paper Borrowings
AverageInterestRateOnCommercialPaperBorrowings
|
0.0074 | pure |
CY2009 | exc |
Average Interest Rate On Commercial Paper Borrowings
AverageInterestRateOnCommercialPaperBorrowings
|
0.0071 | pure |
CY2010Q4 | exc |
Commercial Paper Maximum Progam Size
CommercialPaperMaximumProgamSize
|
7365000000 | USD |
CY2009Q4 | exc |
Commercial Paper Maximum Progam Size
CommercialPaperMaximumProgamSize
|
7317000000 | USD |
CY2010 | us-gaap |
Shortterm Debt Average Outstanding Amount
ShorttermDebtAverageOutstandingAmount
|
125000000 | USD |
CY2010 | us-gaap |
Shortterm Debt Maximum Amount Outstanding During Period
ShorttermDebtMaximumAmountOutstandingDuringPeriod
|
346000000 | USD |
CY2009 | us-gaap |
Shortterm Debt Average Outstanding Amount
ShorttermDebtAverageOutstandingAmount
|
132000000 | USD |
CY2009 | us-gaap |
Shortterm Debt Maximum Amount Outstanding During Period
ShorttermDebtMaximumAmountOutstandingDuringPeriod
|
523000000 | USD |
CY2008 | us-gaap |
Shortterm Debt Average Outstanding Amount
ShorttermDebtAverageOutstandingAmount
|
636000000 | USD |
CY2008 | us-gaap |
Shortterm Debt Maximum Amount Outstanding During Period
ShorttermDebtMaximumAmountOutstandingDuringPeriod
|
1646000000 | USD |
CY2008 | exc |
Average Interest Rate Computed On A Daily Basis
AverageInterestRateComputedOnADailyBasis
|
0.0322 | pure |
CY2008Q4 | exc |
Average Interest Rate At Period End
AverageInterestRateAtPeriodEnd
|
0.0093 | pure |
CY2010Q4 | exc |
Amount That Would Constitute An Event Of Default
AmountThatWouldConstituteAnEventOfDefault
|
100000000 | USD |
CY2010Q4 | exc |
Aggregate Bank Commitments Under Unsecured Revolving Credit Facilities
AggregateBankCommitmentsUnderUnsecuredRevolvingCreditFacilities
|
7365000000 | USD |
CY2010Q4 | us-gaap |
Line Of Credit Facility Amount Outstanding
LineOfCreditFacilityAmountOutstanding
|
0 | USD |
CY2010Q4 | exc |
Letters Of Credit
LettersOfCredit
|
418000000 | USD |
CY2010Q4 | exc |
Unsecured Revolving Credit Facilities Available Capacity
UnsecuredRevolvingCreditFacilitiesAvailableCapacity
|
6947000000 | USD |
CY2010Q4 | exc |
Unsecured Revolving Credit Facilities Available Capacity To Support Commercial Paper Issuance
UnsecuredRevolvingCreditFacilitiesAvailableCapacityToSupportCommercialPaperIssuance
|
6947000000 | USD |
CY2010 | exc |
Average Interest Rate On Facility Borrowings
AverageInterestRateOnFacilityBorrowings
|
0.0061 | pure |
CY2010Q4 | exc |
Debt Covenant Minimum Threshold
DebtCovenantMinimumThreshold
|
2.50 | CreditAgreementThreshold |
CY2010Q4 | exc |
Debt Covenant Actual
DebtCovenantActual
|
12.42 | CreditAgreementThreshold |
CY2010Q4 | exc |
Long Term Debt Excluding Related Party Debt
LongTermDebtExcludingRelatedPartyDebt
|
12234000000 | USD |
CY2009Q4 | exc |
Long Term Debt Excluding Related Party Debt
LongTermDebtExcludingRelatedPartyDebt
|
11660000000 | USD |
CY2010Q4 | us-gaap |
Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
|
-34000000 | USD |
CY2009Q4 | us-gaap |
Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
|
-35000000 | USD |
CY2010Q4 | exc |
Unamortized Settled Fair Value Hedge Net
UnamortizedSettledFairValueHedgeNet
|
-1000000 | USD |
CY2009Q4 | exc |
Unamortized Settled Fair Value Hedge Net
UnamortizedSettledFairValueHedgeNet
|
-1000000 | USD |
CY2010Q4 | exc |
Fair Value Carrying Value Adjustment Net
FairValueCarryingValueAdjustmentNet
|
14000000 | USD |
CY2009Q4 | exc |
Fair Value Carrying Value Adjustment Net
FairValueCarryingValueAdjustmentNet
|
10000000 | USD |
CY2010Q4 | us-gaap |
Other Long Term Debt Current
OtherLongTermDebtCurrent
|
-599000000 | USD |
CY2009Q4 | us-gaap |
Other Long Term Debt Current
OtherLongTermDebtCurrent
|
-639000000 | USD |
CY2010Q4 | us-gaap |
Due To Related Parties Current And Noncurrent
DueToRelatedPartiesCurrentAndNoncurrent
|
390000000 | USD |
CY2009Q4 | us-gaap |
Due To Related Parties Current And Noncurrent
DueToRelatedPartiesCurrentAndNoncurrent
|
805000000 | USD |
CY2010Q4 | exc |
Deferred Tax Liabilities Deferred Pension And Other Postretirement Benefit Obligation
DeferredTaxLiabilitiesDeferredPensionAndOtherPostretirementBenefitObligation
|
485000000 | USD |
CY2010Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
0 | USD |
CY2010Q4 | us-gaap |
Deferred Tax Liabilities Deferred Expense Deferred Financing Costs
DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts
|
-46000000 | USD |
CY2010Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill
|
4000000 | USD |
CY2010Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
-39000000 | USD |
CY2010Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
-6494000000 | USD |
CY2010Q4 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
-212000000 | USD |
CY2010Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
599000000 | USD |
CY2010Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
828000000 | USD |
CY2010Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
555000000 | USD |
CY2010Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
770000000 | USD |
CY2010Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
1063000000 | USD |
CY2010Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
8809000000 | USD |
CY2010Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
12624000000 | USD |
CY2010Q4 | exc |
Long Term Debt Maturities Repayments Of Principal After Year Five Due To Related Party
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFiveDueToRelatedParty
|
390000000 | USD |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | pure |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.03 | pure |
CY2010 | exc |
Effective Income Tax Rate Reconciliation Qualified Nuclear Decommissioning Trust Fund Income Losses
EffectiveIncomeTaxRateReconciliationQualifiedNuclearDecommissioningTrustFundIncomeLosses
|
0.017 | pure |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities
EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities
|
-0.012 | pure |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Exempt Income
EffectiveIncomeTaxRateReconciliationTaxExemptIncome
|
-0.001 | pure |
CY2010 | exc |
Effective Income Tax Rate Reconciliation Elimination Of Deductions Medicare Prescription Drug Benefit
EffectiveIncomeTaxRateReconciliationEliminationOfDeductionsMedicarePrescriptionDrugBenefit
|
0.014 | pure |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
-0.003 | pure |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.002 | pure |
CY2010 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.393 | pure |
CY2009 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | pure |
CY2009 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.021 | pure |
CY2009 | exc |
Effective Income Tax Rate Reconciliation Qualified Nuclear Decommissioning Trust Fund Income Losses
EffectiveIncomeTaxRateReconciliationQualifiedNuclearDecommissioningTrustFundIncomeLosses
|
0.031 | pure |
CY2009 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities
EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities
|
-0.009 | pure |
CY2009 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Exempt Income
EffectiveIncomeTaxRateReconciliationTaxExemptIncome
|
-0.001 | pure |
CY2009 | exc |
Effective Income Tax Rate Reconciliation Nontaxable Postretirement Benefits
EffectiveIncomeTaxRateReconciliationNontaxablePostretirementBenefits
|
-0.002 | pure |
CY2009 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
-0.002 | pure |
CY2008 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | pure |
CY2009 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.388 | pure |
CY2008 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.032 | pure |
CY2008 | exc |
Effective Income Tax Rate Reconciliation Qualified Nuclear Decommissioning Trust Fund Income Losses
EffectiveIncomeTaxRateReconciliationQualifiedNuclearDecommissioningTrustFundIncomeLosses
|
-0.032 | pure |
CY2008 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities
EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities
|
-0.013 | pure |
CY2008 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Exempt Income
EffectiveIncomeTaxRateReconciliationTaxExemptIncome
|
-0.002 | pure |
CY2008 | exc |
Effective Income Tax Rate Reconciliation Nontaxable Postretirement Benefits
EffectiveIncomeTaxRateReconciliationNontaxablePostretirementBenefits
|
-0.003 | pure |
CY2008 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
-0.002 | pure |
CY2008 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.004 | pure |
CY2008 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.326 | pure |
CY2010Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
-5931000000 | USD |
CY2010Q4 | exc |
Deferred Tax Liabilities Stranded Asset Costs Recovery
DeferredTaxLiabilitiesStrandedAssetCostsRecovery
|
0 | USD |
CY2010Q4 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
-523000000 | USD |
CY2010Q4 | exc |
Deferred Income Tax Liabilities And Accumulated Deferred Investment Tax Credit
DeferredIncomeTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCredit
|
-6706000000 | USD |
CY2009Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
-5678000000 | USD |
CY2009Q4 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
-224000000 | USD |
CY2009Q4 | exc |
Deferred Income Tax Liabilities And Accumulated Deferred Investment Tax Credit
DeferredIncomeTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCredit
|
-5902000000 | USD |
CY2009Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
-5838000000 | USD |
CY2009Q4 | exc |
Deferred Tax Liabilities Stranded Asset Costs Recovery
DeferredTaxLiabilitiesStrandedAssetCostsRecovery
|
-567000000 | USD |
CY2009Q4 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
-613000000 | USD |
CY2009Q4 | exc |
Deferred Tax Liabilities Deferred Pension And Other Postretirement Benefit Obligation
DeferredTaxLiabilitiesDeferredPensionAndOtherPostretirementBenefitObligation
|
1312000000 | USD |
CY2009Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
-24000000 | USD |
CY2009Q4 | exc |
Deferred Tax Liabilities Nuclear Decommissioning Activities
DeferredTaxLiabilitiesNuclearDecommissioningActivities
|
-334000000 | USD |
CY2009Q4 | us-gaap |
Deferred Tax Liabilities Deferred Expense Deferred Financing Costs
DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts
|
-59000000 | USD |
CY2009Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill
|
4000000 | USD |
CY2009Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
441000000 | USD |
CY2010Q4 | exc |
Deferred Tax Liabilities Nuclear Decommissioning Activities
DeferredTaxLiabilitiesNuclearDecommissioningActivities
|
-444000000 | USD |
CY2010Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
|
539000000 | USD |
CY2010Q4 | exc |
Deferred Tax Assets Operating Loss Carryforwards State And Local Deferred Taxes
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocalDeferredTaxes
|
20000000 | USD |
CY2010Q4 | exc |
Deferred Tax Assets Operating Loss Carryforwards State And Local Valuationa Llowance
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocalValuationaLlowance
|
9000000 | USD |
CY2009Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
1498000000 | USD |
CY2010Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
787000000 | USD |
CY2008Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
1495000000 | USD |
CY2007Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
1582000000 | USD |
CY2010 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
1000000 | USD |
CY2010 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions
|
-2000000 | USD |
CY2010 | exc |
Unrecognized Tax Benefits Increases Decreases Only Affecting Timing
UnrecognizedTaxBenefitsIncreasesDecreasesOnlyAffectingTiming
|
-262000000 | USD |
CY2010 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
8000000 | USD |
CY2010 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
-3000000 | USD |
CY2010 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
-452000000 | USD |
CY2010 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
-1000000 | USD |
CY2009 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions
|
-2000000 | USD |
CY2009 | exc |
Unrecognized Tax Benefits Increases Decreases Only Affecting Timing
UnrecognizedTaxBenefitsIncreasesDecreasesOnlyAffectingTiming
|
19000000 | USD |
CY2009 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
4000000 | USD |
CY2009 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
-18000000 | USD |
CY2008 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
18000000 | USD |
CY2008 | exc |
Unrecognized Tax Benefits Increases Decreases Only Affecting Timing
UnrecognizedTaxBenefitsIncreasesDecreasesOnlyAffectingTiming
|
-74000000 | USD |
CY2008 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
3000000 | USD |
CY2008 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
-25000000 | USD |
CY2008 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
-9000000 | USD |
CY2009 | exc |
Repair Costs Income Tax
RepairCostsIncomeTax
|
420000000 | USD |
CY2010 | exc |
Unrecognized Tax Benefits For Which Timing Of Ultimate Benefits Uncertain
UnrecognizedTaxBenefitsForWhichTimingOfUltimateBenefitsUncertain
|
783000000 | USD |
CY2009 | exc |
Unrecognized Tax Benefits For Which Timing Of Ultimate Benefits Uncertain
UnrecognizedTaxBenefitsForWhichTimingOfUltimateBenefitsUncertain
|
1400000000 | USD |
CY2010 | exc |
Repair Costs Income Tax
RepairCostsIncomeTax
|
160000000 | USD |
CY2009Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
95000000 | USD |
CY2010Q4 | exc |
Net Interest Receivable Payable Related To Uncertain Tax Positions
NetInterestReceivablePayableRelatedToUncertainTaxPositions
|
21000000 | USD |
CY2009Q4 | exc |
Net Interest Receivable Payable Related To Uncertain Tax Positions
NetInterestReceivablePayableRelatedToUncertainTaxPositions
|
28000000 | USD |
CY2010 | exc |
Net Interest Income Expense Related To Uncertain Tax Positions
NetInterestIncomeExpenseRelatedToUncertainTaxPositions
|
110000000 | USD |
CY2009 | exc |
Net Interest Income Expense Related To Uncertain Tax Positions
NetInterestIncomeExpenseRelatedToUncertainTaxPositions
|
-42000000 | USD |
CY2008 | exc |
Net Interest Income Expense Related To Uncertain Tax Positions
NetInterestIncomeExpenseRelatedToUncertainTaxPositions
|
-31000000 | USD |
CY2010Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
4000000 | USD |
CY2010Q4 | exc |
Deferred Income Tax Gain On Sale Of Assets
DeferredIncomeTaxGainOnSaleOfAssets
|
2800000000 | USD |
CY2010 | exc |
Unrecognized Tax Benefits Income Tax Penalties Expense Involuntary Conversion
UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpenseInvoluntaryConversion
|
110000000 | USD |
CY2010 | exc |
Unrecognized Tax Benefits Income Tax Penalties Expense Like Kind Exchange
UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpenseLikeKindExchange
|
86000000 | USD |
CY2010Q4 | exc |
Preliminary Tax Settlement Tax Assessed
PreliminaryTaxSettlementTaxAssessed
|
300000000 | USD |
CY2010Q4 | us-gaap |
Income Tax Examination Liability Refund Adjustment From Settlement With Taxing Authority
IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority
|
300000000 | USD |
CY2010Q4 | exc |
Deferred Income Tax Gain In Voluntary Conversion
DeferredIncomeTaxGainInVoluntaryConversion
|
1600000000 | USD |
CY2010 | exc |
Deferred Income Tax Gain Like Kind Exchange
DeferredIncomeTaxGainLikeKindExchange
|
1200000000 | USD |
CY2010 | exc |
Remeasurement Interest Expense
RemeasurementInterestExpense
|
65000000 | USD |
CY2010Q4 | exc |
Income Tax And Penalties From Potential Settle With Taxing Authority
IncomeTaxAndPenaltiesFromPotentialSettleWithTaxingAuthority
|
830000000 | USD |
CY2010Q4 | exc |
Income Tax Examination Interest Expense From Potential Settlement With Taxing Authority
IncomeTaxExaminationInterestExpenseFromPotentialSettlementWithTaxingAuthority
|
230000000 | USD |
CY2010Q4 | exc |
Effective Income Tax Rate Reconciliation Impact Of Change In Enacted State Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationImpactOfChangeInEnactedStateStatutoryIncomeTaxRate
|
25000000 | USD |
CY2009 | exc |
Remeasurement Interest Expense
RemeasurementInterestExpense
|
-31000000 | USD |
CY2010 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense
|
196000000 | USD |
CY2010 | exc |
Preliminary Settlement Payment To Irs
PreliminarySettlementPaymentToIrs
|
302000000 | USD |
CY2009 | exc |
Deferred State And Local Income Tax Expense Benefit State Tax Apportionment
DeferredStateAndLocalIncomeTaxExpenseBenefitStateTaxApportionment
|
34700000 | USD |
CY2008Q4 | exc |
Nuclear Asset Retirement Obligation
NuclearAssetRetirementObligation
|
3485000000 | USD |
CY2009 | exc |
Nuclear Asset Retirement Obligation Accretion Expense
NuclearAssetRetirementObligationAccretionExpense
|
203000000 | USD |
CY2009 | exc |
Nuclear Asset Retirement Obligation Revision Of Estimate
NuclearAssetRetirementObligationRevisionOfEstimate
|
-409000000 | USD |
CY2009 | exc |
Nuclear Asset Retirement Obligation Liabilities Settled
NuclearAssetRetirementObligationLiabilitiesSettled
|
19000000 | USD |
CY2010 | exc |
Nuclear Asset Retirement Obligation Accretion Expense
NuclearAssetRetirementObligationAccretionExpense
|
191000000 | USD |
CY2010 | exc |
Nuclear Asset Retirement Obligation Revision Of Estimate
NuclearAssetRetirementObligationRevisionOfEstimate
|
624000000 | USD |
CY2010 | exc |
Nuclear Asset Retirement Obligation Extinguishment
NuclearAssetRetirementObligationExtinguishment
|
768000000 | USD |
CY2010 | exc |
Nuclear Asset Retirement Obligation Liabilities Settled
NuclearAssetRetirementObligationLiabilitiesSettled
|
31000000 | USD |
CY2009Q4 | exc |
Nuclear Asset Retirement Obligation
NuclearAssetRetirementObligation
|
3260000000 | USD |
CY2010Q4 | exc |
Nuclear Asset Retirement Obligation
NuclearAssetRetirementObligation
|
3276000000 | USD |
CY2009Q4 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
17000000 | USD |
CY2010Q4 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
5000000 | USD |
CY2010Q4 | exc |
Net Adjustment To Nuclear Asset Retirement Obligation
NetAdjustmentToNuclearAssetRetirementObligation
|
16000000 | USD |
CY2010 | exc |
Nuclear Asset Retirement Obligation Revision Of Estimate Zion Station
NuclearAssetRetirementObligationRevisionOfEstimateZionStation
|
200000000 | USD |
CY2009Q4 | exc |
Net Adjustment To Nuclear Asset Retirement Obligation
NetAdjustmentToNuclearAssetRetirementObligation
|
409000000 | USD |
CY2009 | exc |
Pre Tax Income Loss Recognized From Nuclear Asset Retirement Obligation Adjustment
PreTaxIncomeLossRecognizedFromNuclearAssetRetirementObligationAdjustment
|
47000000 | USD |
CY2010Q4 | exc |
Spent Nuclear Fuel Obligation Zionsolutions
SpentNuclearFuelObligationZionsolutions
|
34000000 | USD |
CY2010Q4 | exc |
Gross Payable To Zionsolutions
GrossPayableToZionsolutions
|
786000000 | USD |
CY2010Q4 | exc |
Current Payable To Zionsolutions
CurrentPayableToZionsolutions
|
127000000 | USD |
CY2010Q4 | exc |
Zionsolutions Rent Payable
ZionsolutionsRentPayable
|
1 | USD |
CY2010Q4 | exc |
Energysolutions Letter Of Credit
EnergysolutionsLetterOfCredit
|
200000000 | USD |
CY2010 | exc |
Withdrawal From Nuclear Decommissioning Funds
WithdrawalFromNuclearDecommissioningFunds
|
5000000 | USD |
CY2010 | exc |
Nuclear Decommissioning Trust Fund Equity Percent
NuclearDecommissioningTrustFundEquityPercent
|
0.53 | pure |
CY2010 | exc |
Nuclear Decommissioning Trust Fund Fixed Income Securities Percent
NuclearDecommissioningTrustFundFixedIncomeSecuritiesPercent
|
0.47 | pure |
CY2010 | exc |
Annual After Tax Return On Nuclear Decommissioning Fund
AnnualAfterTaxReturnOnNuclearDecommissioningFund
|
0.02 | pure |
CY2010 | exc |
Annual After Tax Return On Nuclear Decommissioning Fund Former Peco Units
AnnualAfterTaxReturnOnNuclearDecommissioningFundFormerPecoUnits
|
0.03 | pure |
CY2010 | exc |
Annual Average Asset Retirement Oblighation Accretion Percent
AnnualAverageAssetRetirementOblighationAccretionPercent
|
0.062 | pure |
CY2010 | exc |
Estimated Annual After Tax Return On Nuclear Decommissioning Funds Lower Bound
EstimatedAnnualAfterTaxReturnOnNuclearDecommissioningFundsLowerBound
|
0.046 | pure |
CY2010 | exc |
Estimated Annual After Tax Return On Nuclear Decommissioning Funds Upper Bound
EstimatedAnnualAfterTaxReturnOnNuclearDecommissioningFundsUpperBound
|
0.054 | pure |
CY2010 | exc |
Annual Average After Tax Return Nuclear Decommissioning Funds Historical
AnnualAverageAfterTaxReturnNuclearDecommissioningFundsHistorical
|
0.05 | pure |
CY2010 | exc |
Unrealized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting
UnrealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting
|
294000000 | USD |
CY2009 | exc |
Unrealized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting
UnrealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting
|
799000000 | USD |
CY2008 | exc |
Unrealized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting
UnrealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting
|
-1023000000 | USD |
CY2010 | exc |
Unrealized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting
UnrealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting
|
104000000 | USD |
CY2009 | exc |
Unrealized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting
UnrealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting
|
227000000 | USD |
CY2008 | exc |
Unrealized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting
UnrealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting
|
-324000000 | USD |
CY2010 | exc |
Unrealized Gain Loss Investment Income Zion Station Pledged Assets
UnrealizedGainLossInvestmentIncomeZionStationPledgedAssets
|
20000000 | USD |
CY2008Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
262000000 | USD |
CY2009 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
-81000000 | USD |
CY2009 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
-2000000 | USD |
CY2009Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
191000000 | USD |
CY2010 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
13000000 | USD |
CY2010 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
-3000000 | USD |
CY2010Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
223000000 | USD |
CY2009 | exc |
Non Nuclear Asset Retirement Obligation Accretion Expense
NonNuclearAssetRetirementObligationAccretionExpense
|
12000000 | USD |
CY2010 | exc |
Non Nuclear Asset Retirement Obligation Accretion Expense
NonNuclearAssetRetirementObligationAccretionExpense
|
9000000 | USD |
CY2010 | exc |
Asset Retirement Obligation Liabilities Purchased
AssetRetirementObligationLiabilitiesPurchased
|
13000000 | USD |
CY2009Q4 | us-gaap |
Preferred Stock Value Outstanding
PreferredStockValueOutstanding
|
87000000 | USD |
CY2008Q3 | exc |
Approved Common Stock Shares For Repurchased Under Third Quarter Two Thousand Eight Repurchase Plan
ApprovedCommonStockSharesForRepurchasedUnderThirdQuarterTwoThousandEightRepurchasePlan
|
1500000000 | USD |
CY2010Q4 | exc |
Share Based Compensation Shares Authorized Under Ltip Plans
ShareBasedCompensationSharesAuthorizedUnderLtipPlans
|
21000000 | shares |
CY2008Q4 | exc |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost Amortization Of Actuarial Experience Gain Loss
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCostAmortizationOfActuarialExperienceGainLoss
|
11000000 | USD |
CY2010Q4 | exc |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost Reduction In Service Cost
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCostReductionInServiceCost
|
10000000 | USD |
CY2009Q4 | exc |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost Reduction In Service Cost
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCostReductionInServiceCost
|
9000000 | USD |
CY2010Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
|
12524000000 | USD |
CY2010Q4 | exc |
Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation
DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
|
12524000000 | USD |
CY2009Q4 | exc |
Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation
DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
|
11482000000 | USD |
CY2009Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
|
11482000000 | USD |
CY2010Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
|
11697000000 | USD |
CY2010Q4 | exc |
Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation
DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
|
11697000000 | USD |
CY2009Q4 | exc |
Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation
DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
|
10695000000 | USD |
CY2009Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
|
10695000000 | USD |
CY2010Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
|
8859000000 | USD |
CY2010Q4 | exc |
Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets
DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
|
8859000000 | USD |
CY2009Q4 | exc |
Defined Benefit Plan Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets
DefinedBenefitPlanPensionPlansWithProjectedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
|
7839000000 | USD |
CY2009Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
|
7839000000 | USD |
CY2010Q4 | exc |
Share Based Compensation Components Performance Shares
ShareBasedCompensationComponentsPerformanceShares
|
6000000 | USD |
CY2010Q4 | exc |
Share Based Compensation Components Stock Options
ShareBasedCompensationComponentsStockOptions
|
10000000 | USD |
CY2010Q4 | exc |
Share Based Compensation Components Restricted Stock
ShareBasedCompensationComponentsRestrictedStock
|
21000000 | USD |
CY2010Q4 | exc |
Share Based Compensation Components Other Stock Based Awards
ShareBasedCompensationComponentsOtherStockBasedAwards
|
4000000 | USD |
CY2010Q4 | exc |
Share Based Compensation Components Total In Operating And Maintenance Pre Tax
ShareBasedCompensationComponentsTotalInOperatingAndMaintenancePreTax
|
41000000 | USD |
CY2010Q4 | exc |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost Amortization Of Actuarial Experience Gain Loss
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCostAmortizationOfActuarialExperienceGainLoss
|
9000000 | USD |
CY2009Q4 | exc |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost Amortization Of Actuarial Experience Gain Loss
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCostAmortizationOfActuarialExperienceGainLoss
|
11000000 | USD |
CY2008Q4 | exc |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost Reduction In Service Cost
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCostReductionInServiceCost
|
9000000 | USD |
CY2010Q4 | exc |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost Reduction In Interest Cost On Accumulated Postretirement Benefit Obligation
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCostReductionInInterestCostOnAccumulatedPostretirementBenefitObligation
|
19000000 | USD |
CY2009Q4 | exc |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost Reduction In Interest Cost On Accumulated Postretirement Benefit Obligation
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCostReductionInInterestCostOnAccumulatedPostretirementBenefitObligation
|
18000000 | USD |
CY2008Q4 | exc |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost Reduction In Interest Cost On Accumulated Postretirement Benefit Obligation
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCostReductionInInterestCostOnAccumulatedPostretirementBenefitObligation
|
18000000 | USD |
CY2010Q4 | us-gaap |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCost
|
38000000 | USD |
CY2009Q4 | us-gaap |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCost
|
38000000 | USD |
CY2008Q4 | us-gaap |
Prescription Drug Benefit Effect Of Subsidy On Net Periodic Postretirement Benefit Cost
PrescriptionDrugBenefitEffectOfSubsidyOnNetPeriodicPostretirementBenefitCost
|
38000000 | USD |
CY2008 | exc |
Pension And Other Postretirement Benefit Expense Included In Capital And Operating And Maintenance Expense
PensionAndOtherPostretirementBenefitExpenseIncludedInCapitalAndOperatingAndMaintenanceExpense
|
314000000 | USD |
CY2010Q4 | exc |
Percentage Of Collateral For Borrowed Securities In Domestic Currency
PercentageOfCollateralForBorrowedSecuritiesInDomesticCurrency
|
1.02 | pure |
CY2010 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents
|
53000000 | USD |
CY2010 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation
|
490000000 | USD |
CY2010 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents
|
-43000000 | USD |
CY2010 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation
|
-405000000 | USD |
CY2010 | exc |
Deferred Federal Income Tax Expense Federally Subsidized Healthcare Costs
DeferredFederalIncomeTaxExpenseFederallySubsidizedHealthcareCosts
|
65000000 | USD |
CY2010Q4 | exc |
Excise Tax On High Cost Benefit Plans
ExciseTaxOnHighCostBenefitPlans
|
0.4 | pure |
CY2010Q4 | exc |
Excise Tax On High Cost Benefit Plans Impact On Postretirement Benefit Obligation
ExciseTaxOnHighCostBenefitPlansImpactOnPostretirementBenefitObligation
|
145000000 | USD |
CY2010Q4 | exc |
Qualified Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year
QualifiedDefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear
|
2100000000 | USD |
CY2010Q4 | exc |
Non Qualified Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year
NonQualifiedDefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear
|
6000000 | USD |
CY2010Q4 | exc |
Defined Other Postretirement Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year
DefinedOtherPostretirementBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear
|
185000000 | USD |
CY2010Q4 | exc |
Share Based Compensation Income Tax Benefit
ShareBasedCompensationIncomeTaxBenefit
|
16000000 | USD |
CY2010Q4 | exc |
Share Based Compensation Components Total In Expense After Tax
ShareBasedCompensationComponentsTotalInExpenseAfterTax
|
25000000 | USD |
CY2009Q4 | exc |
Share Based Compensation Components Performance Shares
ShareBasedCompensationComponentsPerformanceShares
|
31000000 | USD |
CY2009Q4 | exc |
Share Based Compensation Components Stock Options
ShareBasedCompensationComponentsStockOptions
|
20000000 | USD |
CY2009Q4 | exc |
Share Based Compensation Components Restricted Stock
ShareBasedCompensationComponentsRestrictedStock
|
26000000 | USD |
CY2010 | exc |
Pension And Other Postretirement Benefit Expense Included In Capital And Operating And Maintenance Expense
PensionAndOtherPostretirementBenefitExpenseIncludedInCapitalAndOperatingAndMaintenanceExpense
|
581000000 | USD |
CY2009 | exc |
Pension And Other Postretirement Benefit Expense Included In Capital And Operating And Maintenance Expense
PensionAndOtherPostretirementBenefitExpenseIncludedInCapitalAndOperatingAndMaintenanceExpense
|
536000000 | USD |
CY2010Q4 | exc |
Percentage Of Collateral For Borrowed Securities In Foreign Currency
PercentageOfCollateralForBorrowedSecuritiesInForeignCurrency
|
1.05 | pure |
CY2010Q4 | exc |
Percentage Of Collateral For Borrowed Securities Required Levels
PercentageOfCollateralForBorrowedSecuritiesRequiredLevels
|
1.00 | pure |
CY2010 | exc |
Defined Benefit Plan Planned Target Allocation Percentage Of Assets Equity Securities
DefinedBenefitPlanPlannedTargetAllocationPercentageOfAssetsEquitySecurities
|
0.30 | pure |
CY2010 | exc |
Defined Benefit Plan Planned Target Allocation Percentage Of Assets Debt Securities
DefinedBenefitPlanPlannedTargetAllocationPercentageOfAssetsDebtSecurities
|
0.50 | pure |
CY2010 | exc |
Defined Benefit Plan Planned Target Allocation Percentage Of Assets Alternative Investments
DefinedBenefitPlanPlannedTargetAllocationPercentageOfAssetsAlternativeInvestments
|
0.20 | pure |
CY2009Q4 | us-gaap |
Securities Loaned
SecuritiesLoaned
|
356000000 | USD |
CY2009Q4 | exc |
Collateral For Borrowed Securities Fair Value
CollateralForBorrowedSecuritiesFairValue
|
365000000 | USD |
CY2010Q4 | exc |
Collateral Weighted Average Maturity
CollateralWeightedAverageMaturity
|
7 | |
CY2010Q4 | us-gaap |
Securities Loaned
SecuritiesLoaned
|
46000000 | USD |
CY2010Q4 | exc |
Collateral For Borrowed Securities Fair Value
CollateralForBorrowedSecuritiesFairValue
|
47000000 | USD |
CY2010Q4 | exc |
Fair Value Assets Measured On Recurring Basis Pension Plan And Postretirement Benefit Plan Total
FairValueAssetsMeasuredOnRecurringBasisPensionPlanAndPostretirementBenefitPlanTotal
|
10468000000 | USD |
CY2009Q4 | exc |
Fair Value Assets Measured On Recurring Basis Pension Plan And Postretirement Benefit Plan Total
FairValueAssetsMeasuredOnRecurringBasisPensionPlanAndPostretirementBenefitPlanTotal
|
9373000000 | USD |
CY2010Q4 | exc |
Interest And Dividend Receivables Excluded From Pension And Opeb
InterestAndDividendReceivablesExcludedFromPensionAndOpeb
|
21000000 | USD |
CY2009Q4 | exc |
Interest And Dividend Receivables Excluded From Pension And Opeb
InterestAndDividendReceivablesExcludedFromPensionAndOpeb
|
20000000 | USD |
CY2010Q4 | exc |
Pending Asset Sales Transactions Excluded From Pension And Opeb
PendingAssetSalesTransactionsExcludedFromPensionAndOpeb
|
25000000 | USD |
CY2009Q4 | exc |
Pending Asset Sales Transactions Excluded From Pension And Opeb
PendingAssetSalesTransactionsExcludedFromPensionAndOpeb
|
40000000 | USD |
CY2010Q4 | us-gaap |
Securities Received As Collateral
SecuritiesReceivedAsCollateral
|
47000000 | USD |
CY2009Q4 | us-gaap |
Securities Received As Collateral
SecuritiesReceivedAsCollateral
|
365000000 | USD |
CY2010Q4 | us-gaap |
Obligation To Return Securities Received As Collateral
ObligationToReturnSecuritiesReceivedAsCollateral
|
47000000 | USD |
CY2009Q4 | us-gaap |
Obligation To Return Securities Received As Collateral
ObligationToReturnSecuritiesReceivedAsCollateral
|
365000000 | USD |
CY2010 | exc |
Defined Contribution Plan Contributions By Employer
DefinedContributionPlanContributionsByEmployer
|
81000000 | USD |
CY2009 | exc |
Defined Contribution Plan Contributions By Employer
DefinedContributionPlanContributionsByEmployer
|
70000000 | USD |
CY2008 | exc |
Defined Contribution Plan Contributions By Employer
DefinedContributionPlanContributionsByEmployer
|
66000000 | USD |
CY2009Q4 | exc |
Share Based Compensation Components Other Stock Based Awards
ShareBasedCompensationComponentsOtherStockBasedAwards
|
4000000 | USD |
CY2009Q4 | exc |
Share Based Compensation Components Total In Operating And Maintenance Pre Tax
ShareBasedCompensationComponentsTotalInOperatingAndMaintenancePreTax
|
81000000 | USD |
CY2009Q4 | exc |
Share Based Compensation Income Tax Benefit
ShareBasedCompensationIncomeTaxBenefit
|
32000000 | USD |
CY2009 | us-gaap |
Severance Costs
SeveranceCosts
|
45000000 | USD |
CY2009 | us-gaap |
Other Restructuring Costs
OtherRestructuringCosts
|
4000000 | USD |
exc |
Corporate Restructuring Positions Eliminated
CorporateRestructuringPositionsEliminated
|
500 | EmployeePositions | |
exc |
Original Severance Estimate
OriginalSeveranceEstimate
|
40000000 | USD | |
CY2009 | exc |
Severance Estimate Adjustment
SeveranceEstimateAdjustment
|
-6000000 | USD |
CY2010 | us-gaap |
Payments For Postemployment Benefits
PaymentsForPostemploymentBenefits
|
-18000000 | USD |
CY2010Q4 | exc |
Severance Benefits Obligations Balance
SeveranceBenefitsObligationsBalance
|
1000000 | USD |
CY2008Q4 | exc |
Severance Benefits Obligations Balance
SeveranceBenefitsObligationsBalance
|
0 | USD |
CY2009 | exc |
Severance Obligation Severance Charges
SeveranceObligationSeveranceCharges
|
39000000 | USD |
CY2009 | us-gaap |
Payments For Postemployment Benefits
PaymentsForPostemploymentBenefits
|
-10000000 | USD |
CY2009 | exc |
Severance Obligation Other Adjustments
SeveranceObligationOtherAdjustments
|
-10000000 | USD |
CY2009Q4 | exc |
Severance Benefits Obligations Balance
SeveranceBenefitsObligationsBalance
|
19000000 | USD |
CY2009 | us-gaap |
Business Exit Costs
BusinessExitCosts
|
24000000 | USD |
CY2009 | exc |
Plant Retirements Severance Costs
PlantRetirementsSeveranceCosts
|
7000000 | USD |
CY2009 | us-gaap |
Inventory Write Down
InventoryWriteDown
|
17000000 | USD |
CY2009 | exc |
Plant Retirements Accelerated Depreciation
PlantRetirementsAcceleratedDepreciation
|
32000000 | USD |
CY2010 | exc |
Plant Retirements Positions Eliminated
PlantRetirementsPositionsEliminated
|
280 | EmployeePositions |
CY2010 | us-gaap |
Restructuring And Related Cost Expected Cost
RestructuringAndRelatedCostExpectedCost
|
38000000 | USD |
CY2010 | exc |
Plant Retirements Accelerated Depreciation
PlantRetirementsAcceleratedDepreciation
|
80000000 | USD |
CY2010 | exc |
Plant Retirement Cash Payments
PlantRetirementCashPayments
|
-1000000 | USD |
CY2010Q4 | exc |
Plant Retirement Obligations Balance
PlantRetirementObligationsBalance
|
7000000 | USD |
CY2009 | exc |
Plant Retirement Severance Charges
PlantRetirementSeveranceCharges
|
7000000 | USD |
CY2009Q4 | exc |
Plant Retirement Obligations Balance
PlantRetirementObligationsBalance
|
7000000 | USD |
CY2008Q4 | exc |
Plant Retirement Obligations Balance
PlantRetirementObligationsBalance
|
0 | USD |
CY2010 | exc |
Plant Retirement Severance Charges
PlantRetirementSeveranceCharges
|
4000000 | USD |
CY2010 | exc |
Plant Retirement Severance Obligation Other Adjustments
PlantRetirementSeveranceObligationOtherAdjustments
|
-3000000 | USD |
CY2009Q4 | exc |
Coal Fired Generating Units Retired
CoalFiredGeneratingUnitsRetired
|
3 | GeneratingUnits |
CY2009Q4 | exc |
Oil Gas Generating Units Retired
OilGasGeneratingUnitsRetired
|
1 | GeneratingUnits |
CY2010Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
874720 | shares |
CY2009Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
874720 | shares |
CY2010Q4 | us-gaap |
Preferred Stock Value Outstanding
PreferredStockValueOutstanding
|
87000000 | USD |
CY2009Q4 | exc |
Share Based Compensation Components Total In Expense After Tax
ShareBasedCompensationComponentsTotalInExpenseAfterTax
|
49000000 | USD |
CY2008Q4 | exc |
Share Based Compensation Components Performance Shares
ShareBasedCompensationComponentsPerformanceShares
|
28000000 | USD |
CY2008Q4 | exc |
Share Based Compensation Components Stock Options
ShareBasedCompensationComponentsStockOptions
|
24000000 | USD |
CY2008Q4 | exc |
Share Based Compensation Components Restricted Stock
ShareBasedCompensationComponentsRestrictedStock
|
20000000 | USD |
CY2008Q4 | exc |
Share Based Compensation Components Other Stock Based Awards
ShareBasedCompensationComponentsOtherStockBasedAwards
|
4000000 | USD |
CY2008Q4 | exc |
Share Based Compensation Components Total In Operating And Maintenance Pre Tax
ShareBasedCompensationComponentsTotalInOperatingAndMaintenancePreTax
|
76000000 | USD |
CY2008Q4 | exc |
Share Based Compensation Income Tax Benefit
ShareBasedCompensationIncomeTaxBenefit
|
29000000 | USD |
CY2008Q4 | exc |
Share Based Compensation Components Total In Expense After Tax
ShareBasedCompensationComponentsTotalInExpenseAfterTax
|
47000000 | USD |
CY2008Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Restricted Stock Units
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsRestrictedStockUnits
|
1000000 | USD |
CY2008Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Performance Share Awards
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsPerformanceShareAwards
|
2000000 | USD |
CY2008Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Stock Deferral Plan
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsStockDeferralPlan
|
6000000 | USD |
CY2010 | exc |
Weighted Average Assumptions Stock Options Expected Life In Years
WeightedAverageAssumptionsStockOptionsExpectedLifeInYears
|
6.25 | Years |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
8.08 | |
CY2009 | exc |
Weighted Average Assumptions Stock Options Expected Life In Years
WeightedAverageAssumptionsStockOptionsExpectedLifeInYears
|
6.25 | Years |
CY2009 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
14.43 | |
CY2008 | exc |
Weighted Average Assumptions Stock Options Expected Life In Years
WeightedAverageAssumptionsStockOptionsExpectedLifeInYears
|
6.25 | Years |
CY2010Q4 | exc |
Share Based Compensation Components Total In Expense Pre Tax
ShareBasedCompensationComponentsTotalInExpensePreTax
|
41000000 | USD |
CY2009Q4 | exc |
Share Based Compensation Components Total In Expense Pre Tax
ShareBasedCompensationComponentsTotalInExpensePreTax
|
81000000 | USD |
CY2008Q4 | exc |
Share Based Compensation Components Total In Expense Pre Tax
ShareBasedCompensationComponentsTotalInExpensePreTax
|
76000000 | USD |
CY2010 | us-gaap |
Tax Benefit From Stock Options Exercised
TaxBenefitFromStockOptionsExercised
|
5000000 | USD |
CY2010Q4 | exc |
Tax Benefit From Restricted Stock Units Distributed
TaxBenefitFromRestrictedStockUnitsDistributed
|
9000000 | USD |
CY2010Q4 | exc |
Tax Benefit From Performance Share Awards Distributed
TaxBenefitFromPerformanceShareAwardsDistributed
|
13000000 | USD |
CY2010Q4 | exc |
Tax Benefit From Stock Deferral Plan
TaxBenefitFromStockDeferralPlan
|
1000000 | USD |
CY2010Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Stock Options
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsStockOptions
|
3000000 | USD |
CY2010Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Restricted Stock Units
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsRestrictedStockUnits
|
0 | USD |
CY2010Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Performance Share Awards
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsPerformanceShareAwards
|
0 | USD |
CY2010Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Stock Deferral Plan
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsStockDeferralPlan
|
0 | USD |
CY2009 | us-gaap |
Tax Benefit From Stock Options Exercised
TaxBenefitFromStockOptionsExercised
|
6000000 | USD |
CY2009Q4 | exc |
Tax Benefit From Restricted Stock Units Distributed
TaxBenefitFromRestrictedStockUnitsDistributed
|
7000000 | USD |
CY2009Q4 | exc |
Tax Benefit From Performance Share Awards Distributed
TaxBenefitFromPerformanceShareAwardsDistributed
|
19000000 | USD |
CY2009Q4 | exc |
Tax Benefit From Stock Deferral Plan
TaxBenefitFromStockDeferralPlan
|
1000000 | USD |
CY2009Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Stock Options
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsStockOptions
|
4000000 | USD |
CY2009Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Restricted Stock Units
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsRestrictedStockUnits
|
0 | USD |
CY2009Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Performance Share Awards
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsPerformanceShareAwards
|
0 | USD |
CY2009Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Stock Deferral Plan
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsStockDeferralPlan
|
0 | USD |
CY2008 | us-gaap |
Tax Benefit From Stock Options Exercised
TaxBenefitFromStockOptionsExercised
|
59000000 | USD |
CY2008Q4 | exc |
Tax Benefit From Restricted Stock Units Distributed
TaxBenefitFromRestrictedStockUnitsDistributed
|
4000000 | USD |
CY2008Q4 | exc |
Tax Benefit From Performance Share Awards Distributed
TaxBenefitFromPerformanceShareAwardsDistributed
|
27000000 | USD |
CY2008Q4 | exc |
Tax Benefit From Stock Deferral Plan
TaxBenefitFromStockDeferralPlan
|
10000000 | USD |
CY2008Q4 | exc |
Excess Tax Benefits Included In Other Financing Activities In Cash Flows Stock Options
ExcessTaxBenefitsIncludedInOtherFinancingActivitiesInCashFlowsStockOptions
|
51000000 | USD |
CY2008 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
18.36 | |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
|
0.0456 | pure |
CY2009 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
|
0.0372 | pure |
CY2008 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
|
0.0273 | pure |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate
|
0.2710 | pure |
CY2009 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate
|
0.3670 | pure |
CY2008 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate
|
0.2930 | pure |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
|
0.0296 | pure |
CY2009 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
|
0.0201 | pure |
CY2008 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
|
0.0317 | pure |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
13000000 | USD |
CY2010 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
24000000 | USD |
CY2009 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
20000000 | USD |
CY2008 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
147000000 | USD |
CY2008 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
108000000 | USD |
CY2009 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
15000000 | USD |
CY2010Q4 | exc |
Unrecognized Compensation Costs Related To Nonvested Stock Options
UnrecognizedCompensationCostsRelatedToNonvestedStockOptions
|
7000000 | USD |
CY2010Q4 | exc |
Weighted Average Period Non Vested Stock Options Are Expected To Be Recognized Over
WeightedAveragePeriodNonVestedStockOptionsAreExpectedToBeRecognizedOver
|
2.24 | Years |
CY2010Q4 | exc |
Classification Of Obligations Related To Outstanding Performance Share Awards Not Yet Settled Deferred Credits And Other Liabilities
ClassificationOfObligationsRelatedToOutstandingPerformanceShareAwardsNotYetSettledDeferredCreditsAndOtherLiabilities
|
4000000 | USD |
CY2009Q4 | exc |
Restricted Stock Units Weighted Average Grand Date Fair Value
RestrictedStockUnitsWeightedAverageGrandDateFairValue
|
56.08 | USD |
CY2008Q4 | exc |
Restricted Stock Units Weighted Average Grand Date Fair Value
RestrictedStockUnitsWeightedAverageGrandDateFairValue
|
74.83 | USD |
CY2009Q4 | exc |
Restricted Stock Units Obligations Not Yet Settled
RestrictedStockUnitsObligationsNotYetSettled
|
42000000 | USD |
CY2010Q4 | exc |
Restricted Stock Units Obligations To Be Settled In Cash
RestrictedStockUnitsObligationsToBeSettledInCash
|
1000000 | USD |
CY2009Q4 | exc |
Restricted Stock Units Obligations To Be Settled In Cash
RestrictedStockUnitsObligationsToBeSettledInCash
|
1000000 | USD |
CY2009Q4 | exc |
Fair Value Of Settled Restricted Stock Units
FairValueOfSettledRestrictedStockUnits
|
17000000 | USD |
CY2008Q4 | exc |
Fair Value Of Settled Restricted Stock Units
FairValueOfSettledRestrictedStockUnits
|
10000000 | USD |
CY2010Q4 | exc |
Restricted Stock Units Weighted Average Grand Date Fair Value
RestrictedStockUnitsWeightedAverageGrandDateFairValue
|
44.23 | USD |
CY2010Q4 | exc |
Restricted Stock Units Obligations Not Yet Settled
RestrictedStockUnitsObligationsNotYetSettled
|
38000000 | USD |
CY2010Q4 | exc |
Fair Value Of Settled Restricted Stock Units
FairValueOfSettledRestrictedStockUnits
|
22000000 | USD |
CY2010Q4 | exc |
Unrecognized Compensation Costs Related To Nonvested Restricted Stock Units
UnrecognizedCompensationCostsRelatedToNonvestedRestrictedStockUnits
|
19000000 | USD |
CY2010Q4 | exc |
Weighted Average Period Non Vested Restricted Stock Units Are Expected To Be Recognized Over
WeightedAveragePeriodNonVestedRestrictedStockUnitsAreExpectedToBeRecognizedOver
|
2.07 | Years |
CY2009Q4 | exc |
Performance Share Awards Weighted Average Grand Date Fair Value
PerformanceShareAwardsWeightedAverageGrandDateFairValue
|
57.34 | USD |
CY2008Q4 | exc |
Performance Share Awards Weighted Average Grand Date Fair Value
PerformanceShareAwardsWeightedAverageGrandDateFairValue
|
72.89 | USD |
CY2008Q4 | exc |
Fair Value Of Settled Performance Share Awards
FairValueOfSettledPerformanceShareAwards
|
69000000 | USD |
CY2009Q4 | exc |
Fair Value Of Settled Performance Share Awards
FairValueOfSettledPerformanceShareAwards
|
47000000 | USD |
CY2009Q4 | exc |
Performance Share Awards Obligations To Be Settled In Cash
PerformanceShareAwardsObligationsToBeSettledInCash
|
30000000 | USD |
CY2008Q4 | exc |
Performance Share Awards Obligations To Be Settled In Cash
PerformanceShareAwardsObligationsToBeSettledInCash
|
44000000 | USD |
CY2010Q4 | exc |
Fair Value Of Settled Performance Share Awards
FairValueOfSettledPerformanceShareAwards
|
32000000 | USD |
CY2010Q4 | exc |
Performance Share Awards Obligations To Be Settled In Cash
PerformanceShareAwardsObligationsToBeSettledInCash
|
20000000 | USD |
CY2010Q4 | exc |
Unrecognizedcompensation Costs Related To Nonvested Performance Share Awards
UnrecognizedcompensationCostsRelatedToNonvestedPerformanceShareAwards
|
2000000 | USD |
CY2010Q4 | exc |
Weighted Average Period Non Vested Performance Share Awards Are Expected To Be Recognized Over
WeightedAveragePeriodNonVestedPerformanceShareAwardsAreExpectedToBeRecognizedOver
|
1.3 | Years |
CY2010Q4 | exc |
Performance Share Awards Weighted Average Grand Date Fair Value
PerformanceShareAwardsWeightedAverageGrandDateFairValue
|
60.82 | USD |
CY2010Q4 | exc |
Classification Of Obligations Related To Outstanding Performance Share Awards Not Yet Settled Current Liabilities
ClassificationOfObligationsRelatedToOutstandingPerformanceShareAwardsNotYetSettledCurrentLiabilities
|
9000000 | USD |
CY2010Q4 | exc |
Classification Of Obligations Related To Outstanding Performance Share Awards Not Yet Settled Common Stock
ClassificationOfObligationsRelatedToOutstandingPerformanceShareAwardsNotYetSettledCommonStock
|
16000000 | USD |
CY2010Q4 | exc |
Total Balance Sheet Classification Of Obligations Related To Outstanding Performance Share Awards Not Yet Settled
TotalBalanceSheetClassificationOfObligationsRelatedToOutstandingPerformanceShareAwardsNotYetSettled
|
29000000 | USD |
CY2009Q4 | exc |
Classification Of Obligations Related To Outstanding Performance Share Awards Not Yet Settled Current Liabilities
ClassificationOfObligationsRelatedToOutstandingPerformanceShareAwardsNotYetSettledCurrentLiabilities
|
20000000 | USD |
CY2009Q4 | exc |
Classification Of Obligations Related To Outstanding Performance Share Awards Not Yet Settled Deferred Credits And Other Liabilities
ClassificationOfObligationsRelatedToOutstandingPerformanceShareAwardsNotYetSettledDeferredCreditsAndOtherLiabilities
|
14000000 | USD |
CY2009Q4 | exc |
Classification Of Obligations Related To Outstanding Performance Share Awards Not Yet Settled Common Stock
ClassificationOfObligationsRelatedToOutstandingPerformanceShareAwardsNotYetSettledCommonStock
|
26000000 | USD |
CY2009Q4 | exc |
Total Balance Sheet Classification Of Obligations Related To Outstanding Performance Share Awards Not Yet Settled
TotalBalanceSheetClassificationOfObligationsRelatedToOutstandingPerformanceShareAwardsNotYetSettled
|
60000000 | USD |
CY2010 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
2000000 | shares |
CY2009 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
3000000 | shares |
CY2008 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
4000000 | shares |
CY2008 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
1000000 | shares |
CY2009 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
5000000 | shares |
CY2010 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
8000000 | shares |
CY2010Q4 | exc |
Nuclear Insurance Annual Coverage Limit
NuclearInsuranceAnnualCoverageLimit
|
12600000000 | USD |
CY2010Q4 | exc |
Nuclear Insurance Required Per Site
NuclearInsuranceRequiredPerSite
|
375000000 | USD |
CY2010 | exc |
United States Licensed Nuclear Reactors Total
UnitedStatesLicensedNuclearReactorsTotal
|
104 | Reactors |
CY2010Q4 | exc |
Nuclear Insurance Financial Protection Pool Value
NuclearInsuranceFinancialProtectionPoolValue
|
12200000000 | USD |
CY2010 | exc |
Nuclear Insurance Financial Protection Pool Surcharge On Nuclear Incident Assessment
NuclearInsuranceFinancialProtectionPoolSurchargeOnNuclearIncidentAssessment
|
0.05 | pure |
CY2010Q4 | exc |
Nuclear Insurance Financial Protection Pool Maximum Assessment
NuclearInsuranceFinancialProtectionPoolMaximumAssessment
|
117500000 | USD |
CY2010Q4 | exc |
Nuclear Insurance Financial Protection Pool Maximum Annual Assessment Payment
NuclearInsuranceFinancialProtectionPoolMaximumAnnualAssessmentPayment
|
17500000 | USD |
CY2010Q4 | exc |
Nuclear Insurance Financial Protection Pool Nuclear Operator Maximum Total Assessment
NuclearInsuranceFinancialProtectionPoolNuclearOperatorMaximumTotalAssessment
|
2000000000 | USD |
CY2010Q4 | exc |
Mutual Property Insurance Individual Maximum Property Coverage Limit
MutualPropertyInsuranceIndividualMaximumPropertyCoverageLimit
|
1250000000 | USD |
CY2010Q4 | exc |
Mutual Property Insurance Additional Blanket Policy Property Coverage
MutualPropertyInsuranceAdditionalBlanketPolicyPropertyCoverage
|
850000000 | USD |
CY2010Q4 | exc |
Mutual Property Insurance Maximum Retrospective Premium Obligation
MutualPropertyInsuranceMaximumRetrospectivePremiumObligation
|
168000000 | USD |
CY2010Q4 | exc |
Mutual Property Insurance Maximum Recovery Limit For Multiple Losses
MutualPropertyInsuranceMaximumRecoveryLimitForMultipleLosses
|
3200000000 | USD |
CY2010Q4 | exc |
Spent Nuclear Fuel Storage Reimbursement
SpentNuclearFuelStorageReimbursement
|
461000000 | USD |
CY2010Q4 | exc |
Spent Nuclear Fuel Storage Reimbursement Net Co Owners
SpentNuclearFuelStorageReimbursementNetCoOwners
|
377000000 | USD |
CY2010Q4 | exc |
Spent Nuclear Fuel Reimbursement Request Total
SpentNuclearFuelReimbursementRequestTotal
|
84000000 | USD |
CY2010Q4 | exc |
Spent Nuclear Fuel Reimbursement Request Co Owner
SpentNuclearFuelReimbursementRequestCoOwner
|
4000000 | USD |
CY2010Q4 | exc |
Spent Nuclear Fuel One Time Fee
SpentNuclearFuelOneTimeFee
|
277000000 | USD |
CY2010Q4 | exc |
Spent Nuclear Fuel One Time Fee With Interest
SpentNuclearFuelOneTimeFeeWithInterest
|
1018000000 | USD |
CY2010 | exc |
Spent Nuclear Fuel Treasury Interest Rate
SpentNuclearFuelTreasuryInterestRate
|
0.00127 | pure |
CY2010Q4 | exc |
Mutual Replacement Power Cost Insurance Maximum Retrospective Premium Obligation
MutualReplacementPowerCostInsuranceMaximumRetrospectivePremiumObligation
|
44000000 | USD |
CY2010Q4 | exc |
Mutual Insurance Total Retrospective Premium Obligation
MutualInsuranceTotalRetrospectivePremiumObligation
|
212000000 | USD |
CY2010Q4 | exc |
Mutual Property Insurance Distribution To Members
MutualPropertyInsuranceDistributionToMembers
|
20000000 | USD |
CY2010Q4 | exc |
Mutual Property Insurance Total Property Coverage
MutualPropertyInsuranceTotalPropertyCoverage
|
2100000000 | USD |
CY2010Q4 | exc |
Line Of Credit Facility Floating Rate Bond Interest Coverage
LineOfCreditFacilityFloatingRateBondInterestCoverage
|
3000000 | USD |
CY2010Q4 | exc |
Surety Bond Commitments
SuretyBondCommitments
|
72000000 | USD |
CY2010Q4 | exc |
Performance Guarantee Commitments
PerformanceGuaranteeCommitments
|
518000000 | USD |
CY2010Q4 | exc |
Energy Marketing Contract Guarantee Commitments
EnergyMarketingContractGuaranteeCommitments
|
157000000 | USD |
CY2010Q4 | exc |
Nuclear Insurance Total Retrospective Premium Obligation
NuclearInsuranceTotalRetrospectivePremiumObligation
|
2210000000 | USD |
CY2010Q4 | exc |
Lease Guarantee Commitments
LeaseGuaranteeCommitments
|
61000000 | USD |
CY2010Q4 | exc |
Future Third Party Payments Made Chicago Settlement Agreement
FutureThirdPartyPaymentsMadeChicagoSettlementAgreement
|
3000000 | USD |
CY2010Q4 | exc |
Third Party Capacity Reservation Agreement Guarantee Commitment
ThirdPartyCapacityReservationAgreementGuaranteeCommitment
|
6000000 | USD |
CY2010Q4 | exc |
Commercial Commitments
CommercialCommitments
|
3310000000 | USD |
CY2010Q4 | exc |
Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
|
280000000 | USD |
CY2010Q4 | exc |
Line Of Credit Facility Guarantee Support
LineOfCreditFacilityGuaranteeSupport
|
1000000 | USD |
CY2010Q4 | us-gaap |
Long Term Pollution Control Bond
LongTermPollutionControlBond
|
191000000 | USD |
CY2010Q4 | exc |
Total Third Party Payments Made Chicago Settlement Agreement
TotalThirdPartyPaymentsMadeChicagoSettlementAgreement
|
55000000 | USD |
CY2010Q4 | exc |
Third Party Payments Made To Date Chicago Settlement Agreement
ThirdPartyPaymentsMadeToDateChicagoSettlementAgreement
|
52000000 | USD |
CY2010 | exc |
Electric Gas Utility Revenue Retail
ElectricGasUtilityRevenueRetail
|
11906000000 | USD |
CY2010 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
804000000 | USD |
CY2009 | exc |
Electric Gas Utility Revenue Wholesale
ElectricGasUtilityRevenueWholesale
|
5469000000 | USD |
CY2010Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
64000000 | USD |
CY2010Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
63000000 | USD |
CY2010Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
56000000 | USD |
CY2010Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
53000000 | USD |
CY2010Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
42000000 | USD |
CY2010Q4 | exc |
Operating Leases Future Minimum Payments Due Beyond Five Years
OperatingLeasesFutureMinimumPaymentsDueBeyondFiveYears
|
400000000 | USD |
CY2010Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
678000000 | USD |
CY2010 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
722000000 | USD |
CY2009 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
691000000 | USD |
CY2008 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
867000000 | USD |
CY2010Q4 | us-gaap |
Capital Leases Net Investment In Direct Financing Leases
CapitalLeasesNetInvestmentInDirectFinancingLeases
|
629000000 | USD |
CY2010Q4 | exc |
Minimum Ghg Emissions Required For Eligibility For Stationary Source Permitting
MinimumGhgEmissionsRequiredForEligibilityForStationarySourcePermitting
|
100000 | Tons |
CY2010Q4 | exc |
Minimum Additional Ghg Emissions Required For Eligibility For Stationary Source Permitting After Modifications
MinimumAdditionalGhgEmissionsRequiredForEligibilityForStationarySourcePermittingAfterModifications
|
75000 | Tons |
CY2010 | exc |
Schedule Of Operating Revenues
ScheduleOfOperatingRevenues
|
<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 12px"><td colspan="3" style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-WEIGHT: bold;TEXT-DECORATION: underline;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;">For the Year Ended December 31, 2010</font></td><td colspan="2" style="width: 64px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:64px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">Exelon</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 65px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:65px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">Generation</font></td><td style="width: 27px; text-align:center;border-color:#000000;min-width:27px;"> </td><td colspan="2" style="width: 63px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:63px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">ComEd</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 63px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:63px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">PECO</font></td></tr><tr style="height: 19px"><td colspan="3" style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Operating revenues</font><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> (a)</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:54px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:55px;"> </td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:53px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:53px;"> </td></tr><tr style="height: 17px"><td colspan="3" style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Wholesale</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 54px; text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">5,934</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 55px; text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">8,986</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 53px; text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">0</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 53px; text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">44</font></td></tr><tr style="height: 17px"><td colspan="3" style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Retail electric and gas</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">11,906</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">1,004</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;">(b)</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">5,648</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">5,262</font></td></tr><tr style="height: 17px"><td colspan="3" style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Other</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">804</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">35</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;">(c)</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">556</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">213</font></td></tr><tr style="height: 7px"><td style="width: 25px; text-align:left;border-color:#000000;min-width:25px;"> </td><td style="width: 25px; text-align:left;border-color:#000000;min-width:25px;"> </td><td style="width: 273px; text-align:left;border-color:#000000;min-width:273px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:54px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:55px;"> </td><td style="width: 27px; text-align:center;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:53px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:53px;"> </td></tr><tr style="height: 17px"><td colspan="3" style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Total operating revenues</font></td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 54px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">18,644</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 55px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">10,025</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 53px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">6,204</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 53px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">5,519</font></td></tr></table></div><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 12px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-WEIGHT: bold;TEXT-DECORATION: underline;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;">For the Year Ended December 31, 2009</font></td><td colspan="2" style="width: 64px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:64px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">Exelon</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 65px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:65px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">Generation</font></td><td style="width: 27px; text-align:center;border-color:#000000;min-width:27px;"> </td><td colspan="2" style="width: 63px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:63px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">ComEd</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:60px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">PECO</font></td></tr><tr style="height: 19px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Operating revenues</font><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> (a)</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:54px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:55px;"> </td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:53px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:50px;"> </td></tr><tr style="height: 17px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Wholesale</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 54px; text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 5,469</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 55px; text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">8,905</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 53px; text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">0</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 50px; text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">26</font></td></tr><tr style="height: 17px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Retail electric and gas</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 11,099</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">838</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;">(b)</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">5,220</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 50px; text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">5,049</font></td></tr><tr style="height: 17px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Other</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 750</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">(40)</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;">(c)</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">554</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 50px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">236</font></td></tr><tr style="height: 7px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:54px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:55px;"> </td><td style="width: 27px; text-align:center;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:53px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 50px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:50px;"> </td></tr><tr style="height: 17px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Total operating revenues</font></td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 54px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 17,318</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 55px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 9,703</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 53px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 5,774</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 50px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:50px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 5,311</font></td></tr></table></div><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 12px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-WEIGHT: bold;TEXT-DECORATION: underline;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;">For the Year Ended December 31, 2008</font></td><td colspan="2" style="width: 64px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:64px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">Exelon</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 65px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:65px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">Generation</font></td><td style="width: 27px; text-align:center;border-color:#000000;min-width:27px;"> </td><td colspan="2" style="width: 63px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:63px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">ComEd</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 63px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:63px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;TEXT-ALIGN: center;">PECO</font></td></tr><tr style="height: 19px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Operating revenues</font><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> (a)</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:54px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:55px;"> </td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:53px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:53px;"> </td></tr><tr style="height: 17px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Wholesale</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 54px; text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 6,394</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 55px; text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">9,934</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 53px; text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">0</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 53px; text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">45</font></td></tr><tr style="height: 17px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Retail electric and gas</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 11,816</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">979</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;">(b)</font></td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">5,563</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">5,278</font></td></tr><tr style="height: 17px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Other</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 649</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">(159)</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 7.5pt;COLOR: #000000;">(c)</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">573</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">244</font></td></tr><tr style="height: 7px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 54px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:54px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 55px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:55px;"> </td><td style="width: 27px; text-align:center;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:53px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 53px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:53px;"> </td></tr><tr style="height: 18px"><td style="width: 323px; text-align:left;border-color:#000000;min-width:323px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;">Total operating revenues</font></td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 54px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:54px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 18,859</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 55px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:55px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 10,754</font></td><td style="width: 27px; text-align:left;border-color:#000000;min-width:27px;"> </td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 53px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 6,136</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 53px; border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:53px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 10pt;COLOR: #000000;"> 5,567</font></td></tr></table></div><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><p style='margin-top:12pt; margin-bottom:3pt'><font style="font-family:Times New Roman;font-size:6pt;margin-left:0px;"> </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:7.5pt;margin-left:0px;">(a)       </font><font style="font-family:Arial;font-size:7.5pt;">Includes operating revenues from affiliates. </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:7.5pt;margin-left:0px;">(b)       </font><font style="font-family:Arial;font-size:7.5pt;">Generation's retail electric and gas operating revenues consist </font><font style="font-family:Arial;font-size:7.5pt;">primaril</font><font style="font-family:Arial;font-size:7.5pt;">y of Exelon Energy Company, LLC</font><font style="font-family:Arial;font-size:7.5pt;">. </font><font style="font-family:Arial;font-size:7.5pt;">Generation's</font><font style="font-family:Arial;font-size:7.5pt;"> </font><font style="font-family:Arial;font-size:7.5pt;">retail electric operating revenues are allocated among its reportable segments</font><font style="font-family:Arial;font-size:7.5pt;">. </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Arial;font-size:7.5pt;margin-left:0px;">(c)       </font><font style="font-family:Arial;font-size:7.5pt;">Includes amounts recorded related to the Illinois Settlement</font><font style="font-family:Arial;font-size:7.5pt;"> Legislation</font><font style="font-family:Arial;font-size:7.5pt;">.</font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p> | |
CY2010 | exc |
Electric Gas Utility Revenue Wholesale
ElectricGasUtilityRevenueWholesale
|
5934000000 | USD |
CY2009 | exc |
Electric Gas Utility Revenue Retail
ElectricGasUtilityRevenueRetail
|
11099000000 | USD |
CY2009 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
750000000 | USD |
CY2008 | exc |
Electric Gas Utility Revenue Wholesale
ElectricGasUtilityRevenueWholesale
|
6394000000 | USD |
CY2008 | exc |
Electric Gas Utility Revenue Retail
ElectricGasUtilityRevenueRetail
|
11816000000 | USD |
CY2008 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
649000000 | USD |
CY2010 | us-gaap |
Depreciation
Depreciation
|
1144000000 | USD |
CY2010 | us-gaap |
Amortization Of Regulatory Asset
AmortizationOfRegulatoryAsset
|
931000000 | USD |
CY2010 | exc |
Nuclear Fuel Amortization
NuclearFuelAmortization
|
672000000 | USD |
CY2010 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
196000000 | USD |
CY2009 | us-gaap |
Depreciation
Depreciation
|
996000000 | USD |
CY2009 | us-gaap |
Amortization Of Regulatory Asset
AmortizationOfRegulatoryAsset
|
838000000 | USD |
CY2009 | exc |
Nuclear Fuel Amortization
NuclearFuelAmortization
|
558000000 | USD |
CY2009 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
209000000 | USD |
CY2008 | us-gaap |
Depreciation
Depreciation
|
898000000 | USD |
CY2008 | us-gaap |
Amortization Of Regulatory Asset
AmortizationOfRegulatoryAsset
|
736000000 | USD |
CY2008 | exc |
Nuclear Fuel Amortization
NuclearFuelAmortization
|
448000000 | USD |
CY2008 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
226000000 | USD |
CY2010 | exc |
Utility Taxes
UtilityTaxes
|
476000000 | USD |
CY2010 | us-gaap |
Real Estate Tax Expense
RealEstateTaxExpense
|
175000000 | USD |
CY2010 | us-gaap |
Other Labor Related Expenses
OtherLaborRelatedExpenses
|
121000000 | USD |
CY2010 | us-gaap |
Taxes Other
TaxesOther
|
36000000 | USD |
CY2009 | exc |
Utility Taxes
UtilityTaxes
|
481000000 | USD |
CY2009 | us-gaap |
Real Estate Tax Expense
RealEstateTaxExpense
|
157000000 | USD |
CY2009 | us-gaap |
Other Labor Related Expenses
OtherLaborRelatedExpenses
|
114000000 | USD |
CY2009 | us-gaap |
Taxes Other
TaxesOther
|
26000000 | USD |
CY2008 | exc |
Utility Taxes
UtilityTaxes
|
507000000 | USD |
CY2008 | us-gaap |
Real Estate Tax Expense
RealEstateTaxExpense
|
127000000 | USD |
CY2008 | us-gaap |
Other Labor Related Expenses
OtherLaborRelatedExpenses
|
123000000 | USD |
CY2008 | us-gaap |
Taxes Other
TaxesOther
|
21000000 | USD |
CY2010 | exc |
Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting
RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting
|
176000000 | USD |
CY2010 | exc |
Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting
RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting
|
51000000 | USD |
CY2010 | exc |
Unrealized Gain Loss Nuclear Decommissioning Trust Funds Regulatory Accounting
UnrealizedGainLossNuclearDecommissioningTrustFundsRegulatoryAccounting
|
316000000 | USD |
CY2010 | exc |
Unrealized Gain Loss Nuclear Decommissioning Trust Funds Nonregulatory Accounting
UnrealizedGainLossNuclearDecommissioningTrustFundsNonregulatoryAccounting
|
104000000 | USD |
CY2010 | exc |
Regulatory Offset Nuclear Decommissioning Trust Fund Activity
RegulatoryOffsetNuclearDecommissioningTrustFundActivity
|
394000000 | USD |
CY2010 | exc |
Gain Loss Investment Income Nuclear Decommissioning Trust Funds
GainLossInvestmentIncomeNuclearDecommissioningTrustFunds
|
253000000 | USD |
CY2010 | us-gaap |
Capital Leases Income Statement Direct Financing Lease Revenue
CapitalLeasesIncomeStatementDirectFinancingLeaseRevenue
|
27000000 | USD |
CY2010 | exc |
Unrecognized Tax Benefits Interest Income
UnrecognizedTaxBenefitsInterestIncome
|
0 | USD |
CY2010 | us-gaap |
Other Nonoperating Income
OtherNonoperatingIncome
|
30000000 | USD |
CY2010 | us-gaap |
Investment Income Interest
InvestmentIncomeInterest
|
1000000 | USD |
CY2010 | us-gaap |
Realized Investment Gains Losses
RealizedInvestmentGainsLosses
|
1000000 | USD |
CY2009 | exc |
Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting
RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting
|
126000000 | USD |
CY2009 | exc |
Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting
RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting
|
29000000 | USD |
CY2009 | exc |
Unrealized Gain Loss Nuclear Decommissioning Trust Funds Regulatory Accounting
UnrealizedGainLossNuclearDecommissioningTrustFundsRegulatoryAccounting
|
801000000 | USD |
CY2009 | exc |
Unrealized Gain Loss Nuclear Decommissioning Trust Funds Nonregulatory Accounting
UnrealizedGainLossNuclearDecommissioningTrustFundsNonregulatoryAccounting
|
227000000 | USD |
CY2009 | exc |
Regulatory Offset Nuclear Decommissioning Trust Fund Activity
RegulatoryOffsetNuclearDecommissioningTrustFundActivity
|
746000000 | USD |
CY2009 | exc |
Gain Loss Investment Income Nuclear Decommissioning Trust Funds
GainLossInvestmentIncomeNuclearDecommissioningTrustFunds
|
437000000 | USD |
CY2009 | us-gaap |
Investment Income Interest
InvestmentIncomeInterest
|
5000000 | USD |
CY2009 | us-gaap |
Capital Leases Income Statement Direct Financing Lease Revenue
CapitalLeasesIncomeStatementDirectFinancingLeaseRevenue
|
26000000 | USD |
CY2009 | exc |
Unrecognized Tax Benefits Interest Income
UnrecognizedTaxBenefitsInterestIncome
|
50000000 | USD |
CY2009 | us-gaap |
Impairment Of Investments
ImpairmentOfInvestments
|
7000000 | USD |
CY2009 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
-117000000 | USD |
CY2009 | us-gaap |
Other Nonoperating Income
OtherNonoperatingIncome
|
28000000 | USD |
CY2009 | us-gaap |
Realized Investment Gains Losses
RealizedInvestmentGainsLosses
|
5000000 | USD |
CY2008 | exc |
Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Regulatory Accounting
RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsRegulatoryAccounting
|
43000000 | USD |
CY2008 | exc |
Realized Gain Loss Investment Income Nuclear Decommissioning Trust Funds Nonregulatory Accounting
RealizedGainLossInvestmentIncomeNuclearDecommissioningTrustFundsNonregulatoryAccounting
|
16000000 | USD |
CY2008 | exc |
Unrealized Gain Loss Nuclear Decommissioning Trust Funds Regulatory Accounting
UnrealizedGainLossNuclearDecommissioningTrustFundsRegulatoryAccounting
|
-1022000000 | USD |
CY2008 | exc |
Unrealized Gain Loss Nuclear Decommissioning Trust Funds Nonregulatory Accounting
UnrealizedGainLossNuclearDecommissioningTrustFundsNonregulatoryAccounting
|
-324000000 | USD |
CY2008 | exc |
Regulatory Offset Nuclear Decommissioning Trust Fund Activity
RegulatoryOffsetNuclearDecommissioningTrustFundActivity
|
-777000000 | USD |
CY2008 | exc |
Gain Loss Investment Income Nuclear Decommissioning Trust Funds
GainLossInvestmentIncomeNuclearDecommissioningTrustFunds
|
-510000000 | USD |
CY2008 | us-gaap |
Investment Income Interest
InvestmentIncomeInterest
|
10000000 | USD |
CY2008 | us-gaap |
Capital Leases Income Statement Direct Financing Lease Revenue
CapitalLeasesIncomeStatementDirectFinancingLeaseRevenue
|
24000000 | USD |
CY2008 | exc |
Unrecognized Tax Benefits Interest Income
UnrecognizedTaxBenefitsInterestIncome
|
31000000 | USD |
CY2008 | us-gaap |
Other Nonoperating Income
OtherNonoperatingIncome
|
25000000 | USD |
CY2008 | us-gaap |
Gain Loss On Contract Termination
GainLossOnContractTermination
|
13000000 | USD |
CY2010 | us-gaap |
Interest Paid Net
InterestPaidNet
|
625000000 | USD |
CY2010 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
1219000000 | USD |
CY2010 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
581000000 | USD |
CY2010 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
108000000 | USD |
CY2010 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
44000000 | USD |
CY2010 | exc |
Other Decommissioning Related Activity
OtherDecommissioningRelatedActivity
|
91000000 | USD |
CY2010 | exc |
Energy Related Options
EnergyRelatedOptions
|
-73000000 | USD |
CY2010 | exc |
Amortization Of Regulatory Asset Debt Costs
AmortizationOfRegulatoryAssetDebtCosts
|
24000000 | USD |
CY2010 | exc |
Taxes Other Than Income Refund Accrual
TaxesOtherThanIncomeRefundAccrual
|
25000000 | USD |
CY2010 | exc |
Under Over Recovered Uncollectible Accounts
UnderOverRecoveredUncollectibleAccounts
|
14000000 | USD |
CY2010 | exc |
Inventory Adjustments During Period
InventoryAdjustmentsDuringPeriod
|
-57000000 | USD |
CY2010 | exc |
Other Noncash Income Expense Net
OtherNoncashIncomeExpenseNet
|
5000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Over Under Energy Recovery
IncreaseDecreaseInOverUnderEnergyRecovery
|
-61000000 | USD |
CY2010 | exc |
Increase Decrease In Other Current Operating Assets
IncreaseDecreaseInOtherCurrentOperatingAssets
|
18000000 | USD |
CY2010 | exc |
Increase Decrease In Other Noncurrent Operating Assets Liabilities
IncreaseDecreaseInOtherNoncurrentOperatingAssetsLiabilities
|
99000000 | USD |
CY2010 | exc |
Allowance For Obsolete Inveotry
AllowanceForObsoleteInveotry
|
12000000 | USD |
CY2010 | exc |
Asset Retirement Obligation Reduction
AssetRetirementObligationReduction
|
-19000000 | USD |
CY2010 | exc |
Capitalized Costs Incurred Asset Retirement Obligation
CapitalizedCostsIncurredAssetRetirementObligation
|
-428000000 | USD |
CY2010 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
34000000 | USD |
CY2010 | exc |
Noncash Purchase Accounting Adjustment
NoncashPurchaseAccountingAdjustment
|
9000000 | USD |
CY2010Q4 | us-gaap |
Business Acquisition Contingent Consideration At Fair Value
BusinessAcquisitionContingentConsiderationAtFairValue
|
32000000 | USD |
CY2010 | exc |
Interest On Taxes Paid
InterestOnTaxesPaid
|
167000000 | USD |
CY2009 | us-gaap |
Interest Paid Net
InterestPaidNet
|
647000000 | USD |
CY2009 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
982000000 | USD |
CY2009 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
536000000 | USD |
CY2009 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
149000000 | USD |
CY2009 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
70000000 | USD |
CY2009 | exc |
Other Decommissioning Related Activity
OtherDecommissioningRelatedActivity
|
163000000 | USD |
CY2009 | exc |
Energy Related Options
EnergyRelatedOptions
|
46000000 | USD |
CY2009 | exc |
Asset Retirement Obligation Reduction
AssetRetirementObligationReduction
|
-47000000 | USD |
CY2009 | exc |
Amortization Of Regulatory Asset Debt Costs
AmortizationOfRegulatoryAssetDebtCosts
|
25000000 | USD |
CY2009 | exc |
Amortization Of Regulatory Liability Real Estate Taxes
AmortizationOfRegulatoryLiabilityRealEstateTaxes
|
2000000 | USD |
CY2009 | exc |
Other Noncash Income Expense Net
OtherNoncashIncomeExpenseNet
|
-13000000 | USD |
CY2009 | us-gaap |
Increase Decrease In Over Under Energy Recovery
IncreaseDecreaseInOverUnderEnergyRecovery
|
-23000000 | USD |
CY2009 | exc |
Increase Decrease In Other Current Operating Assets
IncreaseDecreaseInOtherCurrentOperatingAssets
|
2000000 | USD |
CY2009 | exc |
Increase Decrease In Other Noncurrent Operating Assets Liabilities
IncreaseDecreaseInOtherNoncurrentOperatingAssetsLiabilities
|
134000000 | USD |
CY2009 | exc |
Supplemental Cash Flow Loss In Equity Method Investments
SupplementalCashFlowLossInEquityMethodInvestments
|
-27000000 | USD |
CY2010 | us-gaap |
Inventory Write Down
InventoryWriteDown
|
17000000 | USD |
CY2009 | exc |
Capitalized Costs Incurred Asset Retirement Obligation
CapitalizedCostsIncurredAssetRetirementObligation
|
67000000 | USD |
CY2009 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
70000000 | USD |
CY2009 | exc |
Noncash Purchase Accounting Adjustment
NoncashPurchaseAccountingAdjustment
|
9000000 | USD |
CY2008 | us-gaap |
Interest Paid Net
InterestPaidNet
|
716000000 | USD |
CY2008 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
938000000 | USD |
CY2008 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
314000000 | USD |
CY2008 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
247000000 | USD |
CY2008 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
67000000 | USD |
CY2008 | exc |
Other Decommissioning Related Activity
OtherDecommissioningRelatedActivity
|
-219000000 | USD |
CY2008 | exc |
Energy Related Options
EnergyRelatedOptions
|
5000000 | USD |
CY2008 | exc |
Amortization Of Regulatory Asset Debt Costs
AmortizationOfRegulatoryAssetDebtCosts
|
25000000 | USD |
CY2008 | exc |
Amortization Of Regulatory Liability Real Estate Taxes
AmortizationOfRegulatoryLiabilityRealEstateTaxes
|
36000000 | USD |
CY2008 | exc |
Other Noncash Income Expense Net
OtherNoncashIncomeExpenseNet
|
36000000 | USD |
CY2008 | us-gaap |
Increase Decrease In Over Under Energy Recovery
IncreaseDecreaseInOverUnderEnergyRecovery
|
-32000000 | USD |
CY2008 | exc |
Increase Decrease In Other Current Operating Assets
IncreaseDecreaseInOtherCurrentOperatingAssets
|
-12000000 | USD |
CY2008 | exc |
Increase Decrease In Other Noncurrent Operating Assets Liabilities
IncreaseDecreaseInOtherNoncurrentOperatingAssetsLiabilities
|
179000000 | USD |
CY2008 | exc |
Supplemental Cash Flow Loss In Equity Method Investments
SupplementalCashFlowLossInEquityMethodInvestments
|
-26000000 | USD |
CY2008 | exc |
Rate Case Order Net Impact
RateCaseOrderNetImpact
|
22000000 | USD |
CY2008 | exc |
Reduction Of Guarantees
ReductionOfGuarantees
|
-55000000 | USD |
CY2008 | exc |
Capitalized Costs Incurred Asset Retirement Obligation
CapitalizedCostsIncurredAssetRetirementObligation
|
128000000 | USD |
CY2008 | exc |
Noncash Purchase Accounting Adjustment
NoncashPurchaseAccountingAdjustment
|
10000000 | USD |
CY2008 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
23000000 | USD |
CY2010Q4 | exc |
Total Long Term Investments
TotalLongTermInvestments
|
732000000 | USD |
CY2010Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
39000000 | USD |
CY2009Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
55000000 | USD |
CY2009Q4 | exc |
Total Long Term Investments
TotalLongTermInvestments
|
724000000 | USD |
CY2009Q4 | us-gaap |
Capital Leases Net Investment In Direct Financing Leases
CapitalLeasesNetInvestmentInDirectFinancingLeases
|
602000000 | USD |
CY2000Q4 | us-gaap |
Capital Leases Net Investment In Direct Financing Leases Unguaranteed Residual Values Of Leased Property
CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty
|
1600000000 | USD |
CY2000Q4 | exc |
Capital Leases Net Investment In Direct Financing Leases Prepayments Received
CapitalLeasesNetInvestmentInDirectFinancingLeasesPrepaymentsReceived
|
1200000000 | USD |
CY2010Q4 | us-gaap |
Capital Leases Net Investment In Direct Financing Leases Unguaranteed Residual Values Of Leased Property
CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty
|
1492000000 | USD |
CY2009Q4 | us-gaap |
Capital Leases Net Investment In Direct Financing Leases Unguaranteed Residual Values Of Leased Property
CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty
|
1492000000 | USD |
CY2010Q4 | us-gaap |
Capital Leases Net Investment In Direct Financing Leases Deferred Income
CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome
|
863000000 | USD |
CY2009Q4 | us-gaap |
Capital Leases Net Investment In Direct Financing Leases Deferred Income
CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome
|
890000000 | USD |
CY2010Q4 | exc |
Accrued Compensation Current
AccruedCompensationCurrent
|
465000000 | USD |
CY2009Q4 | exc |
Accrued Compensation Current
AccruedCompensationCurrent
|
401000000 | USD |
CY2010Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
297000000 | USD |
CY2009Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
264000000 | USD |
CY2010Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
195000000 | USD |
CY2009Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
170000000 | USD |
CY2010Q4 | exc |
Accrued Severance Current
AccruedSeveranceCurrent
|
22000000 | USD |
CY2009Q4 | exc |
Accrued Severance Current
AccruedSeveranceCurrent
|
36000000 | USD |
CY2010Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
61000000 | USD |
CY2009Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
52000000 | USD |
CY2010Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
|
400000000 | USD |
CY2009Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
|
551000000 | USD |
CY2010Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
2823000000 | USD |
CY2009Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
2640000000 | USD |
CY2010 | us-gaap |
Segment Reporting Information Revenue
SegmentReportingInformationRevenue
|
18644000000 | USD |
CY2009 | us-gaap |
Segment Reporting Information Revenue
SegmentReportingInformationRevenue
|
17318000000 | USD |
CY2008 | us-gaap |
Segment Reporting Information Revenue
SegmentReportingInformationRevenue
|
18859000000 | USD |
CY2010 | us-gaap |
Segment Reporting Information Intersegment Revenue
SegmentReportingInformationIntersegmentRevenue
|
6000000 | USD |
CY2009 | us-gaap |
Segment Reporting Information Intersegment Revenue
SegmentReportingInformationIntersegmentRevenue
|
9000000 | USD |
CY2008 | us-gaap |
Segment Reporting Information Intersegment Revenue
SegmentReportingInformationIntersegmentRevenue
|
0 | USD |
CY2010 | us-gaap |
Segment Reporting Information Depreciation Depletion And Amortization Expense
SegmentReportingInformationDepreciationDepletionAndAmortizationExpense
|
2075000000 | USD |
CY2009 | us-gaap |
Segment Reporting Information Depreciation Depletion And Amortization Expense
SegmentReportingInformationDepreciationDepletionAndAmortizationExpense
|
1834000000 | USD |
CY2008 | us-gaap |
Segment Reporting Information Depreciation Depletion And Amortization Expense
SegmentReportingInformationDepreciationDepletionAndAmortizationExpense
|
1634000000 | USD |
CY2010 | us-gaap |
Segment Reporting Information Noninterest Expense
SegmentReportingInformationNoninterestExpense
|
13918000000 | USD |
CY2009 | us-gaap |
Segment Reporting Information Noninterest Expense
SegmentReportingInformationNoninterestExpense
|
12568000000 | USD |
CY2008 | us-gaap |
Segment Reporting Information Noninterest Expense
SegmentReportingInformationNoninterestExpense
|
13560000000 | USD |
CY2010 | us-gaap |
Segment Reporting Information Interest Expense
SegmentReportingInformationInterestExpense
|
817000000 | USD |
CY2009 | us-gaap |
Segment Reporting Information Interest Expense
SegmentReportingInformationInterestExpense
|
731000000 | USD |
CY2008 | us-gaap |
Segment Reporting Information Interest Expense
SegmentReportingInformationInterestExpense
|
832000000 | USD |
CY2010 | us-gaap |
Segment Reporting Income Before Income Taxes Extraordinary Items Discontinued Operations And Cumulative Effect
SegmentReportingIncomeBeforeIncomeTaxesExtraordinaryItemsDiscontinuedOperationsAndCumulativeEffect
|
4221000000 | USD |
CY2009 | us-gaap |
Segment Reporting Income Before Income Taxes Extraordinary Items Discontinued Operations And Cumulative Effect
SegmentReportingIncomeBeforeIncomeTaxesExtraordinaryItemsDiscontinuedOperationsAndCumulativeEffect
|
4419000000 | USD |
CY2008 | us-gaap |
Segment Reporting Income Before Income Taxes Extraordinary Items Discontinued Operations And Cumulative Effect
SegmentReportingIncomeBeforeIncomeTaxesExtraordinaryItemsDiscontinuedOperationsAndCumulativeEffect
|
4034000000 | USD |
CY2010 | us-gaap |
Segment Reporting Information Income Tax Expense Benefit
SegmentReportingInformationIncomeTaxExpenseBenefit
|
1658000000 | USD |
CY2009 | us-gaap |
Segment Reporting Information Income Tax Expense Benefit
SegmentReportingInformationIncomeTaxExpenseBenefit
|
1712000000 | USD |
CY2008 | us-gaap |
Segment Reporting Information Income Tax Expense Benefit
SegmentReportingInformationIncomeTaxExpenseBenefit
|
1317000000 | USD |
CY2010 | exc |
Segment Reporting Information Continuing Operations Profit Loss
SegmentReportingInformationContinuingOperationsProfitLoss
|
2563000000 | USD |
CY2009 | exc |
Segment Reporting Information Continuing Operations Profit Loss
SegmentReportingInformationContinuingOperationsProfitLoss
|
2707000000 | USD |
CY2008 | exc |
Segment Reporting Information Continuing Operations Profit Loss
SegmentReportingInformationContinuingOperationsProfitLoss
|
2717000000 | USD |
CY2010 | exc |
Segment Reporting Information Discontinued Operations Profit Loss
SegmentReportingInformationDiscontinuedOperationsProfitLoss
|
0 | USD |
CY2009 | exc |
Segment Reporting Information Discontinued Operations Profit Loss
SegmentReportingInformationDiscontinuedOperationsProfitLoss
|
0 | USD |
CY2008 | exc |
Segment Reporting Information Discontinued Operations Profit Loss
SegmentReportingInformationDiscontinuedOperationsProfitLoss
|
20000000 | USD |
CY2010 | us-gaap |
Segment Reporting Information Profit Loss
SegmentReportingInformationProfitLoss
|
2563000000 | USD |
CY2009 | us-gaap |
Segment Reporting Information Profit Loss
SegmentReportingInformationProfitLoss
|
2707000000 | USD |
CY2008 | us-gaap |
Segment Reporting Information Profit Loss
SegmentReportingInformationProfitLoss
|
2737000000 | USD |
CY2010 | us-gaap |
Segment Reporting Information Expenditures For Additions To Long Lived Assets
SegmentReportingInformationExpendituresForAdditionsToLongLivedAssets
|
3326000000 | USD |
CY2009 | us-gaap |
Segment Reporting Information Expenditures For Additions To Long Lived Assets
SegmentReportingInformationExpendituresForAdditionsToLongLivedAssets
|
3273000000 | USD |
CY2008 | us-gaap |
Segment Reporting Information Expenditures For Additions To Long Lived Assets
SegmentReportingInformationExpendituresForAdditionsToLongLivedAssets
|
3117000000 | USD |
CY2010Q4 | us-gaap |
Segment Reporting Information Assets
SegmentReportingInformationAssets
|
52240000000 | USD |
CY2009Q4 | us-gaap |
Segment Reporting Information Assets
SegmentReportingInformationAssets
|
49180000000 | USD |
CY2010 | us-gaap |
Related Party Transaction Revenues From Transactions With Related Party
RelatedPartyTransactionRevenuesFromTransactionsWithRelatedParty
|
6000000 | USD |
CY2009 | us-gaap |
Related Party Transaction Revenues From Transactions With Related Party
RelatedPartyTransactionRevenuesFromTransactionsWithRelatedParty
|
12000000 | USD |
CY2008 | us-gaap |
Related Party Transaction Revenues From Transactions With Related Party
RelatedPartyTransactionRevenuesFromTransactionsWithRelatedParty
|
8000000 | USD |
CY2010 | exc |
Related Party Transaction Utilities Operating Expense Fuel Used Total
RelatedPartyTransactionUtilitiesOperatingExpenseFuelUsedTotal
|
144000000 | USD |
CY2009 | exc |
Related Party Transaction Utilities Operating Expense Fuel Used Total
RelatedPartyTransactionUtilitiesOperatingExpenseFuelUsedTotal
|
125000000 | USD |
CY2008 | exc |
Related Party Transaction Utilities Operating Expense Fuel Used Total
RelatedPartyTransactionUtilitiesOperatingExpenseFuelUsedTotal
|
127000000 | USD |
CY2010 | exc |
Related Party Transaction Charitable Contribution
RelatedPartyTransactionCharitableContribution
|
10000000 | USD |
CY2009 | exc |
Related Party Transaction Charitable Contribution
RelatedPartyTransactionCharitableContribution
|
10000000 | USD |
CY2008 | exc |
Related Party Transaction Charitable Contribution
RelatedPartyTransactionCharitableContribution
|
0 | USD |
CY2010Q4 | us-gaap |
Due To Affiliate Current
DueToAffiliateCurrent
|
5000000 | USD |
CY2009Q4 | us-gaap |
Due To Affiliate Current
DueToAffiliateCurrent
|
5000000 | USD |
CY2010Q4 | exc |
Long Term Debt To Financing Trusts Fair Value Disclosure
LongTermDebtToFinancingTrustsFairValueDisclosure
|
390000000 | USD |
CY2009Q4 | exc |
Long Term Debt To Financing Trusts Fair Value Disclosure
LongTermDebtToFinancingTrustsFairValueDisclosure
|
805000000 | USD |
CY2009Q1 | us-gaap |
Revenues
Revenues
|
4722000000 | USD |
CY2009Q2 | us-gaap |
Revenues
Revenues
|
4141000000 | USD |
CY2009Q3 | us-gaap |
Revenues
Revenues
|
4339000000 | USD |
CY2009Q4 | us-gaap |
Revenues
Revenues
|
4116000000 | USD |
CY2009Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1255000000 | USD |
CY2009Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1016000000 | USD |
CY2009Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1403000000 | USD |
CY2009Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1076000000 | USD |
CY2010Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
445000000 | USD |
CY2010Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
845000000 | USD |
CY2010Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
524000000 | USD |
CY2009Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
712000000 | USD |
CY2009Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
657000000 | USD |
CY2009Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
757000000 | USD |
CY2009Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
581000000 | USD |
CY2010Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
749000000 | USD |
CY2010Q1 | us-gaap |
Revenues
Revenues
|
4461000000 | USD |
CY2010Q2 | us-gaap |
Revenues
Revenues
|
4398000000 | USD |
CY2010Q3 | us-gaap |
Revenues
Revenues
|
5291000000 | USD |
CY2010Q4 | us-gaap |
Revenues
Revenues
|
4494000000 | USD |
CY2010Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1402000000 | USD |
CY2010Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1018000000 | USD |
CY2010Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1367000000 | USD |
CY2010Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
939000000 | USD |
CY2010Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
661000000 | shares |
CY2010Q2 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
661000000 | shares |
CY2010Q3 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
662000000 | shares |
CY2010Q4 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
662000000 | shares |
CY2009Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
659000000 | shares |
CY2009Q2 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
659000000 | shares |
CY2009Q3 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
660000000 | shares |
CY2009Q4 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
660000000 | shares |
CY2010Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.79 | |
CY2009Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.08 | |
CY2009Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.00 | |
CY2009Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.15 | |
CY2009Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.88 | |
CY2010Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
662000000 | shares |
CY2010Q2 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
662000000 | shares |
CY2010Q3 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
663000000 | shares |
CY2010Q4 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
663000000 | shares |
CY2009Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
661000000 | shares |
CY2009Q2 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
661000000 | shares |
CY2009Q3 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
662000000 | shares |
CY2009Q4 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
662000000 | shares |
CY2010Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.13 | |
CY2010Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.67 | |
CY2010Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.27 | |
CY2010Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.79 | |
CY2009Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.08 | |
CY2009Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.99 | |
CY2009Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.14 | |
CY2009Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.88 | |
CY2010Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.13 | |
CY2010Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.67 | |
CY2010Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.28 | |
CY2010Q4 | exc |
High Share Price
HighSharePrice
|
44490000 | USD |
CY2010Q4 | exc |
Low Share Price
LowSharePrice
|
39050000 | USD |
CY2010Q4 | exc |
Close Share Price
CloseSharePrice
|
41640000 | USD |
CY2010Q4 | us-gaap |
Dividends Payable Amount Per Share
DividendsPayableAmountPerShare
|
0.525 | |
CY2010Q3 | exc |
High Share Price
HighSharePrice
|
43320000 | USD |
CY2010Q3 | exc |
Low Share Price
LowSharePrice
|
37630000 | USD |
CY2010Q3 | exc |
Close Share Price
CloseSharePrice
|
42580000 | USD |
CY2010Q3 | us-gaap |
Dividends Payable Amount Per Share
DividendsPayableAmountPerShare
|
0.525 | |
CY2010Q2 | exc |
High Share Price
HighSharePrice
|
45100000 | USD |
CY2010Q2 | exc |
Low Share Price
LowSharePrice
|
37240000 | USD |
CY2010Q2 | exc |
Close Share Price
CloseSharePrice
|
37970000 | USD |
CY2010Q2 | us-gaap |
Dividends Payable Amount Per Share
DividendsPayableAmountPerShare
|
0.525 | |
CY2010Q1 | us-gaap |
Dividends Payable Amount Per Share
DividendsPayableAmountPerShare
|
0.525 | |
CY2010Q1 | exc |
Close Share Price
CloseSharePrice
|
43810000 | USD |
CY2010Q1 | exc |
Low Share Price
LowSharePrice
|
42970000 | USD |
CY2010Q1 | exc |
High Share Price
HighSharePrice
|
49880000 | USD |
CY2009Q4 | exc |
High Share Price
HighSharePrice
|
51980000 | USD |
CY2009Q4 | exc |
Low Share Price
LowSharePrice
|
45900000 | USD |
CY2009Q4 | exc |
Close Share Price
CloseSharePrice
|
48870000 | USD |
CY2009Q4 | us-gaap |
Dividends Payable Amount Per Share
DividendsPayableAmountPerShare
|
0.525 | |
CY2009Q3 | us-gaap |
Dividends Payable Amount Per Share
DividendsPayableAmountPerShare
|
0.525 | |
CY2009Q3 | exc |
Close Share Price
CloseSharePrice
|
49620000 | USD |
CY2009Q3 | exc |
Low Share Price
LowSharePrice
|
47300000 | USD |
CY2009Q3 | exc |
High Share Price
HighSharePrice
|
54470000 | USD |
CY2009Q2 | exc |
High Share Price
HighSharePrice
|
51460000 | USD |
CY2009Q2 | exc |
Low Share Price
LowSharePrice
|
44240000 | USD |
CY2009Q2 | exc |
Close Share Price
CloseSharePrice
|
50120000 | USD |
CY2009Q2 | us-gaap |
Dividends Payable Amount Per Share
DividendsPayableAmountPerShare
|
0.525 | |
CY2009Q1 | us-gaap |
Dividends Payable Amount Per Share
DividendsPayableAmountPerShare
|
0.525 | |
CY2009Q1 | exc |
Close Share Price
CloseSharePrice
|
45390000 | USD |
CY2009Q1 | exc |
Low Share Price
LowSharePrice
|
38410000 | USD |
CY2009Q1 | exc |
High Share Price
HighSharePrice
|
58980000 | USD |