2011 Q4 Form 10-K Financial Statement
#000078497713000012 Filed on February 22, 2013
Income Statement
Concept | 2011 Q4 | 2010 Q4 | 2010 |
---|---|---|---|
Revenue | $479.0M | $455.0M | $1.783B |
YoY Change | 5.27% | -6.19% | -1.16% |
Cost Of Revenue | $269.0M | $263.0M | $1.003B |
YoY Change | 2.28% | -20.54% | -10.61% |
Gross Profit | $210.0M | $192.0M | $780.0M |
YoY Change | 9.38% | 24.68% | 14.37% |
Gross Profit Margin | 43.84% | 42.2% | 43.75% |
Selling, General & Admin | $60.00M | $46.00M | $186.0M |
YoY Change | 30.43% | 2.22% | 3.91% |
% of Gross Profit | 28.57% | 23.96% | 23.85% |
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $57.00M | $65.00M | $238.0M |
YoY Change | -12.31% | 27.45% | 12.8% |
% of Gross Profit | 27.14% | 33.85% | 30.51% |
Operating Expenses | $141.0M | $133.0M | $513.0M |
YoY Change | 6.02% | 14.66% | 8.23% |
Operating Profit | $69.00M | $59.00M | $267.0M |
YoY Change | 16.95% | 55.26% | 28.37% |
Interest Expense | -$28.00M | -$28.00M | $110.0M |
YoY Change | 0.0% | 0.0% | 5.77% |
% of Operating Profit | -40.58% | -47.46% | 41.2% |
Other Income/Expense, Net | $4.000M | $4.000M | $17.00M |
YoY Change | 0.0% | 100.0% | -19.05% |
Pretax Income | $45.00M | $35.00M | $174.0M |
YoY Change | 28.57% | 191.67% | 39.2% |
Income Tax | $16.00M | $13.00M | $53.00M |
% Of Pretax Income | 35.56% | 37.14% | 30.46% |
Net Earnings | $29.00M | $25.00M | $125.0M |
YoY Change | 16.0% | 212.5% | 31.58% |
Net Earnings / Revenue | 6.05% | 5.49% | 7.01% |
Basic Earnings Per Share | $1.66 | ||
Diluted Earnings Per Share | $384.6K | $332.0K | $1.66 |
COMMON SHARES | |||
Basic Shares Outstanding | 75.35M shares | 75.30M shares | 75.28M shares |
Diluted Shares Outstanding | 75.29M shares |
Balance Sheet
Concept | 2011 Q4 | 2010 Q4 | 2010 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $86.00M | $87.00M | $87.00M |
YoY Change | -1.15% | 0.0% | 0.0% |
Cash & Equivalents | $6.000M | $4.000M | $4.000M |
Short-Term Investments | $80.00M | $83.00M | $83.00M |
Other Short-Term Assets | $98.00M | $67.00M | $381.0M |
YoY Change | 46.27% | -28.72% | -1.3% |
Inventory | $71.00M | $56.00M | $56.00M |
Prepaid Expenses | |||
Receivables | $144.0M | $137.0M | $137.0M |
Other Receivables | $0.00 | $0.00 | $0.00 |
Total Short-Term Assets | $716.0M | $661.0M | $661.0M |
YoY Change | 8.32% | -4.2% | -4.2% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $4.285B | $4.133B | $3.847B |
YoY Change | 3.68% | 7.13% | 5.57% |
Goodwill | |||
YoY Change | |||
Intangibles | |||
YoY Change | |||
Long-Term Investments | $73.00M | $78.00M | |
YoY Change | -6.41% | -19.59% | |
Other Assets | $65.00M | $75.00M | $697.0M |
YoY Change | -13.33% | 20.97% | 11.7% |
Total Long-Term Assets | $5.017B | $4.830B | $4.830B |
YoY Change | 3.87% | 7.76% | 7.76% |
TOTAL ASSETS | |||
Total Short-Term Assets | $716.0M | $661.0M | $661.0M |
Total Long-Term Assets | $5.017B | $4.830B | $4.830B |
Total Assets | $5.733B | $5.491B | $5.491B |
YoY Change | 4.41% | 6.17% | 6.17% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $111.0M | $102.0M | $102.0M |
YoY Change | 8.82% | -45.45% | -45.45% |
Accrued Expenses | $114.0M | $125.0M | $125.0M |
YoY Change | -8.8% | 35.87% | |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $30.00M | $19.00M | $19.00M |
YoY Change | 57.89% | ||
Long-Term Debt Due | $100.0M | $10.00M | $10.00M |
YoY Change | 900.0% | -94.62% | -94.62% |
Total Short-Term Liabilities | $614.0M | $489.0M | $489.0M |
YoY Change | 25.56% | -21.13% | -21.13% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $1.635B | $1.798B | $1.798B |
YoY Change | -9.07% | 15.4% | 15.4% |
Other Long-Term Liabilities | $14.00M | $78.00M | $1.160B |
YoY Change | -82.05% | 4.0% | 5.94% |
Total Long-Term Liabilities | $1.649B | $1.876B | $2.958B |
YoY Change | -12.1% | 14.88% | 11.5% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $614.0M | $489.0M | $489.0M |
Total Long-Term Liabilities | $1.649B | $1.876B | $2.958B |
Total Liabilities | $4.067B | $3.892B | $3.899B |
YoY Change | 4.5% | 7.25% | 7.41% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $833.0M | $766.0M | |
YoY Change | 8.75% | 6.54% | |
Common Stock | $836.0M | $831.0M | |
YoY Change | 0.6% | 0.24% | |
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $1.663B | $1.592B | $1.592B |
YoY Change | |||
Total Liabilities & Shareholders Equity | $5.733B | $5.491B | $5.491B |
YoY Change | 4.41% | 6.17% | 6.17% |
Cashflow Statement
Concept | 2011 Q4 | 2010 Q4 | 2010 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | $29.00M | $25.00M | $125.0M |
YoY Change | 16.0% | 212.5% | 31.58% |
Depreciation, Depletion And Amortization | $57.00M | $65.00M | $238.0M |
YoY Change | -12.31% | 27.45% | 12.8% |
Cash From Operating Activities | $54.00M | $74.00M | $391.0M |
YoY Change | -27.03% | 722.22% | 1.3% |
INVESTING ACTIVITIES | |||
Capital Expenditures | -$85.00M | -$66.00M | $450.0M |
YoY Change | 28.79% | -56.58% | -35.34% |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | $0.00 | $0.00 | $3.000M |
YoY Change | -100.0% | -25.0% | |
Cash From Investing Activities | -$85.00M | -$66.00M | -$430.0M |
YoY Change | 28.79% | -57.14% | -38.57% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | $78.00M | ||
YoY Change | 8.33% | ||
Common Stock Issuance & Retirement, Net | $0.00 | ||
YoY Change | -100.0% | ||
Debt Paid & Issued, Net | $186.0M | ||
YoY Change | 30.99% | ||
Cash From Financing Activities | -60.00M | -11.00M | $12.00M |
YoY Change | 445.45% | -108.46% | -96.42% |
NET CHANGE | |||
Cash From Operating Activities | 54.00M | 74.00M | $391.0M |
Cash From Investing Activities | -85.00M | -66.00M | -$430.0M |
Cash From Financing Activities | -60.00M | -11.00M | $12.00M |
Net Change In Cash | -91.00M | -3.000M | -$27.00M |
YoY Change | 2933.33% | -80.0% | -228.57% |
FREE CASH FLOW | |||
Cash From Operating Activities | $54.00M | $74.00M | $391.0M |
Capital Expenditures | -$85.00M | -$66.00M | $450.0M |
Free Cash Flow | $139.0M | $140.0M | -$59.00M |
YoY Change | -0.71% | -13.04% | -80.97% |
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2011Q4 | us-gaap |
Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
|
111000000 | USD |
CY2012Q4 | us-gaap |
Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
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CY2012Q4 | us-gaap |
Accounts Receivable Net Current
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|
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CY2011Q4 | us-gaap |
Accounts Receivable Net Current
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|
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CY2012Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
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CY2011Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
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CY2011 | us-gaap |
Adjustments Related To Tax Withholding For Share Based Compensation
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Adjustments Related To Tax Withholding For Share Based Compensation
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Allowance For Doubtful Accounts Receivable Charge Offs
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Allowance For Doubtful Accounts Receivable Charge Offs
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Allowance For Doubtful Accounts Receivable Charge Offs
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CY2009Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
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Allowance For Doubtful Accounts Receivable Current
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Allowance For Doubtful Accounts Receivable Current
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Allowance For Doubtful Accounts Receivable Current
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Alternative Investments Fair Value Disclosure
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Amortization Of Intangible Assets
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Amortization Of Intangible Assets
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Amortization Of Intangible Assets
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Asset Retirement Obligation
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94000000 | USD |
CY2011Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
87000000 | USD |
CY2010Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
64000000 | USD |
CY2009Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
63000000 | USD |
CY2010 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
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CY2011 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
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CY2012 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
6000000 | USD |
CY2012 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
0 | USD |
CY2011 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
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CY2010 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
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CY2011 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
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Asset Retirement Obligation Liabilities Settled
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Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
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CY2011 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
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|
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Asset Retirement Obligation Revision Of Estimate
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|
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CY2012 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
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|
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Asset Retirement Obligations Noncurrent
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Asset Retirement Obligations Noncurrent
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Assets
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CY2011Q4 | us-gaap |
Assets
Assets
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CY2012Q4 | us-gaap |
Assets Current
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CY2011Q4 | us-gaap |
Assets Current
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|
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CY2011Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
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CY2010Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
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CY2012Q4 | us-gaap |
Assets Held In Trust Noncurrent
AssetsHeldInTrustNoncurrent
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CY2011Q4 | us-gaap |
Assets Held In Trust Noncurrent
AssetsHeldInTrustNoncurrent
|
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CY2011 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
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|
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CY2010 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
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|
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Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
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Cash And Cash Equivalents At Carrying Value
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|
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Cash And Cash Equivalents At Carrying Value
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|
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Cash And Cash Equivalents Period Increase Decrease
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Cash And Cash Equivalents Period Increase Decrease
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Cash And Cash Equivalents Period Increase Decrease
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Collateral Already Posted Aggregate Fair Value
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Commercial Paper
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CY2011Q4 | us-gaap |
Commercial Paper
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CY2011 | us-gaap |
Common Stock Dividends Per Share Declared
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|
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Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.075 | |
CY2010 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.035 | |
CY2012Q4 | us-gaap |
Common Stock No Par Value
CommonStockNoParValue
|
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CY2011Q4 | us-gaap |
Common Stock No Par Value
CommonStockNoParValue
|
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CY2012Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
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CY2011Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
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CY2012Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
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CY2011Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
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CY2012Q4 | us-gaap |
Common Stock Shares Outstanding
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|
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CY2011Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
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CY2012Q4 | us-gaap |
Common Stock Value
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CY2011Q4 | us-gaap |
Common Stock Value
CommonStockValue
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Comprehensive Income Net Of Tax
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|
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CY2011 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
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CY2010 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
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CY2011 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
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Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
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|
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Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
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Costs And Expenses
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Costs And Expenses
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Costs And Expenses
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Current Federal Tax Expense Benefit
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|
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Current Federal Tax Expense Benefit
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Current Federal Tax Expense Benefit
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Current Income Tax Expense Benefit
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|
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Current Income Tax Expense Benefit
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Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
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Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
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CY2010 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
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Debt Instrument Covenant Description
DebtInstrumentCovenantDescription
|
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CY2012Q4 | us-gaap |
Debt Instrument Interest Rate Stated Percentage
DebtInstrumentInterestRateStatedPercentage
|
0.056675 | |
CY2011Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
1000000 | USD |
CY2012Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
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CY2012Q4 | us-gaap |
Debt Weighted Average Interest Rate
DebtWeightedAverageInterestRate
|
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CY2011Q4 | us-gaap |
Debt Weighted Average Interest Rate
DebtWeightedAverageInterestRate
|
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Decommissioning Trust Assets Amount
DecommissioningTrustAssetsAmount
|
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CY2011Q4 | us-gaap |
Decommissioning Trust Assets Amount
DecommissioningTrustAssetsAmount
|
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Deferred Federal Income Tax Expense Benefit
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Deferred Federal Income Tax Expense Benefit
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CY2012 | us-gaap |
Deferred Federal Income Tax Expense Benefit
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Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
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CY2011 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
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CY2010 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
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CY2010 | us-gaap |
Deferred Purchased Power Costs
DeferredPurchasedPowerCosts
|
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CY2011 | us-gaap |
Deferred Purchased Power Costs
DeferredPurchasedPowerCosts
|
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CY2012 | us-gaap |
Deferred Purchased Power Costs
DeferredPurchasedPowerCosts
|
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CY2011 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
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|
13000000 | USD |
CY2012 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
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17000000 | USD |
CY2010 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
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CY2012Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
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CY2011Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
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CY2012Q4 | us-gaap |
Deferred Tax Assets Net
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314000000 | USD |
CY2011Q4 | us-gaap |
Deferred Tax Assets Net
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CY2011Q4 | us-gaap |
Deferred Tax Assets Net Current
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CY2012Q4 | us-gaap |
Deferred Tax Assets Net Current
DeferredTaxAssetsNetCurrent
|
51000000 | USD |
CY2012Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
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CY2011Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
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1000000 | USD |
CY2011Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
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Deferred Tax Assets Regulatory Assets And Liabilities
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CY2012Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits
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162000000 | USD |
CY2011Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
|
135000000 | USD |
CY2012Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
0 | USD |
CY2011Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
855000000 | USD |
CY2012Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
851000000 | USD |
CY2011Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
529000000 | USD |
CY2012Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
588000000 | USD |
CY2011Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
9000000 | USD |
CY2012Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
4000000 | USD |
CY2012Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
623000000 | USD |
CY2011Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
572000000 | USD |
CY2012Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets
DeferredTaxLiabilitiesRegulatoryAssets
|
224000000 | USD |
CY2011Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets
DeferredTaxLiabilitiesRegulatoryAssets
|
274000000 | USD |
CY2012 | us-gaap |
Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year
DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear
|
27000000 | USD |
CY2012 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents
|
0 | USD |
CY2012Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter
DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
|
251000000 | USD |
CY2012Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months
DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
|
39000000 | USD |
CY2012Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Five
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
|
45000000 | USD |
CY2012Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Four
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
|
44000000 | USD |
CY2012Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Three
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
|
42000000 | USD |
CY2012Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Two
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
|
40000000 | USD |
CY2011Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets
DefinedBenefitPlanFairValueOfPlanAssets
|
487000000 | USD |
CY2012Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets
DefinedBenefitPlanFairValueOfPlanAssets
|
537000000 | USD |
CY2010 | us-gaap |
Defined Benefit Plan Health Care Cost Trend Rate Assumed For Next Fiscal Year
DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear
|
0.005 | |
CY2012 | us-gaap |
Defined Benefit Plan Health Care Cost Trend Rate Assumed For Next Fiscal Year
DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear
|
0.005 | |
CY2011 | us-gaap |
Defined Benefit Plan Health Care Cost Trend Rate Assumed For Next Fiscal Year
DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear
|
0.005 | |
CY2011 | us-gaap |
Defined Benefit Plan Ultimate Health Care Cost Trend Rate
DefinedBenefitPlanUltimateHealthCareCostTrendRate
|
0.05 | |
CY2010 | us-gaap |
Defined Benefit Plan Ultimate Health Care Cost Trend Rate
DefinedBenefitPlanUltimateHealthCareCostTrendRate
|
0.05 | |
CY2012 | us-gaap |
Defined Benefit Plan Ultimate Health Care Cost Trend Rate
DefinedBenefitPlanUltimateHealthCareCostTrendRate
|
0.05 | |
CY2012 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
248000000 | USD |
CY2010 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
238000000 | USD |
CY2011 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
227000000 | USD |
CY2012Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
127000000 | USD |
CY2011Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
216000000 | USD |
CY2011Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
172000000 | USD |
CY2012Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
73000000 | USD |
CY2012Q4 | us-gaap |
Derivative Net Liability Position Aggregate Fair Value
DerivativeNetLiabilityPositionAggregateFairValue
|
163000000 | USD |
CY2012Q4 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
21000000 | USD |
CY2011Q4 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
21000000 | USD |
CY2011Q4 | us-gaap |
Dividends Payable Current And Noncurrent
DividendsPayableCurrentAndNoncurrent
|
21000000 | USD |
CY2012Q4 | us-gaap |
Dividends Payable Current And Noncurrent
DividendsPayableCurrentAndNoncurrent
|
21000000 | USD |
CY2010Q4 | us-gaap |
Dividends Payable Current And Noncurrent
DividendsPayableCurrentAndNoncurrent
|
20000000 | USD |
CY2011 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.95 | |
CY2010 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.66 | |
CY2012 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.87 | |
CY2011 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.283 | |
CY2012 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.311 | |
CY2010 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.303 | |
CY2012 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.350 | |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.350 | |
CY2011 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.350 | |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
0.000 | |
CY2012 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
0.026 | |
CY2011 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
0.000 | |
CY2012 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
|
0.024 | |
CY2011 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
|
0.021 | |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
|
0.001 | |
CY2011 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.013 | |
CY2012 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.006 | |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.012 | |
CY2011 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.026 | |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.044 | |
CY2012 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.035 | |
CY2011 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Other
EffectiveIncomeTaxRateReconciliationTaxCreditsOther
|
-0.127 | |
CY2012 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Other
EffectiveIncomeTaxRateReconciliationTaxCreditsOther
|
-0.118 | |
CY2010 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Other
EffectiveIncomeTaxRateReconciliationTaxCreditsOther
|
-0.104 | |
CY2011 | us-gaap |
Electric Production Expense
ElectricProductionExpense
|
201000000 | USD |
CY2010 | us-gaap |
Electric Production Expense
ElectricProductionExpense
|
174000000 | USD |
CY2012 | us-gaap |
Electric Production Expense
ElectricProductionExpense
|
211000000 | USD |
CY2010 | us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
1783000000 | USD |
CY2011 | us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
1813000000 | USD |
CY2012 | us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
1805000000 | USD |
CY2011Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
44000000 | USD |
CY2012Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
46000000 | USD |
CY2012 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
0 | USD |
CY2010 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
0 | USD |
CY2011 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
0 | USD |
CY2012Q4 | us-gaap |
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
|
4000000 | USD |
CY2011Q4 | us-gaap |
Energy Related Inventory
EnergyRelatedInventory
|
34000000 | USD |
CY2012Q4 | us-gaap |
Energy Related Inventory
EnergyRelatedInventory
|
40000000 | USD |
CY2011 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
|
129000000 | USD |
CY2012 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
|
76000000 | USD |
CY2010 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
|
126000000 | USD |
CY2012 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues
|
1000000 | USD |
CY2011 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues
|
0 | USD |
CY2012 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases
|
1000000 | USD |
CY2011 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases
|
3000000 | USD |
CY2010 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases Sales Issuances Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchasesSalesIssuancesSettlements
|
27000000 | USD |
CY2012 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements
|
0 | USD |
CY2011 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements
|
1000000 | USD |
CY2011Q4 | us-gaap |
Financial Instruments Owned At Fair Value
FinancialInstrumentsOwnedAtFairValue
|
69000000 | USD |
CY2012Q4 | us-gaap |
Financial Instruments Owned At Fair Value
FinancialInstrumentsOwnedAtFairValue
|
53000000 | USD |
CY2011Q4 | us-gaap |
Financial Instruments Owned Corporate Debt At Fair Value
FinancialInstrumentsOwnedCorporateDebtAtFairValue
|
76000000 | USD |
CY2012Q4 | us-gaap |
Financial Instruments Owned Corporate Debt At Fair Value
FinancialInstrumentsOwnedCorporateDebtAtFairValue
|
8000000 | USD |
CY2012Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
151000000 | USD |
CY2011Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
153000000 | USD |
CY2012Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
20000000 | USD |
CY2012Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
11000000 | USD |
CY2012Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
14000000 | USD |
CY2012Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
16000000 | USD |
CY2012Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
18000000 | USD |
CY2010 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
186000000 | USD |
CY2011 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
218000000 | USD |
CY2012 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
216000000 | USD |
CY2012 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
204000000 | USD |
CY2011 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
205000000 | USD |
CY2010 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
174000000 | USD |
CY2012 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
64000000 | USD |
CY2011 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
58000000 | USD |
CY2010 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
53000000 | USD |
CY2011 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
3000000 | USD |
CY2012 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
13000000 | USD |
CY2010 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
0 | USD |
CY2012Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
1000000 | USD |
CY2011Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
12000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-11000000 | USD |
CY2012 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
1000000 | USD |
CY2011 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
5000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
22000000 | USD |
CY2011 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
0 | USD |
CY2012 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
0 | USD |
CY2011 | us-gaap |
Increase Decrease In Margin Deposits Outstanding
IncreaseDecreaseInMarginDepositsOutstanding
|
-3000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Margin Deposits Outstanding
IncreaseDecreaseInMarginDepositsOutstanding
|
27000000 | USD |
CY2012 | us-gaap |
Increase Decrease In Margin Deposits Outstanding
IncreaseDecreaseInMarginDepositsOutstanding
|
-34000000 | USD |
CY2011 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
6000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
20000000 | USD |
CY2012 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
6000000 | USD |
CY2012 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-1000000 | USD |
CY2011 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
7000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
0 | USD |
CY2010 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-24000000 | USD |
CY2012 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
4000000 | USD |
CY2011 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
15000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
|
118000000 | USD |
CY2012 | us-gaap |
Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
|
-172000000 | USD |
CY2011 | us-gaap |
Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
|
6000000 | USD |
CY2010 | us-gaap |
Increase Decrease In Risk Management Assets And Liabilities
IncreaseDecreaseInRiskManagementAssetsAndLiabilities
|
-118000000 | USD |
CY2011 | us-gaap |
Increase Decrease In Risk Management Assets And Liabilities
IncreaseDecreaseInRiskManagementAssetsAndLiabilities
|
-9000000 | USD |
CY2012 | us-gaap |
Increase Decrease In Risk Management Assets And Liabilities
IncreaseDecreaseInRiskManagementAssetsAndLiabilities
|
175000000 | USD |
CY2010 | us-gaap |
Interest Expense
InterestExpense
|
110000000 | USD |
CY2012 | us-gaap |
Interest Expense
InterestExpense
|
108000000 | USD |
CY2011 | us-gaap |
Interest Expense
InterestExpense
|
110000000 | USD |
CY2010 | us-gaap |
Interest Paid Net
InterestPaidNet
|
98000000 | USD |
CY2012 | us-gaap |
Interest Paid Net
InterestPaidNet
|
97000000 | USD |
CY2011 | us-gaap |
Interest Paid Net
InterestPaidNet
|
103000000 | USD |
CY2011Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
24000000 | USD |
CY2012Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
23000000 | USD |
CY2012Q4 | us-gaap |
Jointly Owned Utility Plant Gross Ownership Amount Of Plant In Service
JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService
|
1201000000 | USD |
CY2012Q4 | us-gaap |
Jointly Owned Utility Plant Ownership Amount Of Construction Work In Progress
JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgress
|
16000000 | USD |
CY2012Q4 | us-gaap |
Jointly Owned Utility Plant Ownership Amount Of Plant Accumulated Depreciation
JointlyOwnedUtilityPlantOwnershipAmountOfPlantAccumulatedDepreciation
|
684000000 | USD |
CY2012 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
10000000 | USD |
CY2011 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
9000000 | USD |
CY2010 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
9000000 | USD |
CY2012Q4 | us-gaap |
Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
|
45000000 | USD |
CY2011Q4 | us-gaap |
Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
|
104000000 | USD |
CY2011Q4 | us-gaap |
Liabilities
Liabilities
|
4067000000 | USD |
CY2012Q4 | us-gaap |
Liabilities
Liabilities
|
3940000000 | USD |
CY2012Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
5670000000 | USD |
CY2011Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
5733000000 | USD |
CY2011Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
614000000 | USD |
CY2012Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
521000000 | USD |
CY2011Q4 | us-gaap |
Liabilities Fair Value Disclosure
LiabilitiesFairValueDisclosure
|
388000000 | USD |
CY2012Q4 | us-gaap |
Liabilities Fair Value Disclosure
LiabilitiesFairValueDisclosure
|
200000000 | USD |
CY2012 | us-gaap |
Limited Liability Company Llc Or Limited Partnership Lp Members Or Limited Partners Ownership Interest
LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
|
0.99 | |
CY2012Q4 | us-gaap |
Line Of Credit Facility Amount Outstanding
LineOfCreditFacilityAmountOutstanding
|
67000000 | USD |
CY2012Q4 | us-gaap |
Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
|
700000000 | USD |
CY2012Q4 | us-gaap |
Line Of Credit Facility Remaining Borrowing Capacity
LineOfCreditFacilityRemainingBorrowingCapacity
|
616000000 | USD |
CY2013 | us-gaap |
Long Term Contract For Purchase Of Electric Power Estimated Annual Cost
LongTermContractForPurchaseOfElectricPowerEstimatedAnnualCost
|
7000000 | USD |
CY2014 | us-gaap |
Long Term Contract For Purchase Of Electric Power Estimated Annual Cost
LongTermContractForPurchaseOfElectricPowerEstimatedAnnualCost
|
2000000 | USD |
CY2011Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
1735000000 | USD |
CY2012Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
1636000000 | USD |
CY2012Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
100000000 | USD |
CY2011Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
100000000 | USD |
CY2012Q4 | us-gaap |
Long Term Debt Fair Value
LongTermDebtFairValue
|
1949000000 | USD |
CY2011Q4 | us-gaap |
Long Term Debt Fair Value
LongTermDebtFairValue
|
2091000000 | USD |
CY2012Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
1341000000 | USD |
CY2012Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
100000000 | USD |
CY2012Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
58000000 | USD |
CY2012Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
67000000 | USD |
CY2012Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
70000000 | USD |
CY2012Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
0 | USD |
CY2012Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
1536000000 | USD |
CY2011Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
1635000000 | USD |
CY2011Q4 | us-gaap |
Longterm Pollution Control Bond Current And Noncurrent
LongtermPollutionControlBondCurrentAndNoncurrent
|
142000000 | USD |
CY2012Q4 | us-gaap |
Longterm Pollution Control Bond Current And Noncurrent
LongtermPollutionControlBondCurrentAndNoncurrent
|
142000000 | USD |
CY2012Q4 | us-gaap |
Margin Deposit Assets
MarginDepositAssets
|
46000000 | USD |
CY2011Q4 | us-gaap |
Margin Deposit Assets
MarginDepositAssets
|
80000000 | USD |
CY2012Q4 | us-gaap |
Minority Interest
MinorityInterest
|
2000000 | USD |
CY2011Q4 | us-gaap |
Minority Interest
MinorityInterest
|
3000000 | USD |
CY2011Q4 | us-gaap |
Money Market Funds At Carrying Value
MoneyMarketFundsAtCarryingValue
|
14000000 | USD |
CY2012Q4 | us-gaap |
Money Market Funds At Carrying Value
MoneyMarketFundsAtCarryingValue
|
15000000 | USD |
CY2012 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-194000000 | USD |
CY2010 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
12000000 | USD |
CY2011 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-152000000 | USD |
CY2012 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-294000000 | USD |
CY2010 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-430000000 | USD |
CY2011 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-299000000 | USD |
CY2010 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
391000000 | USD |
CY2011 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
453000000 | USD |
CY2012 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
494000000 | USD |
CY2011 | us-gaap |
Net Income Loss
NetIncomeLoss
|
147000000 | USD |
CY2012 | us-gaap |
Net Income Loss
NetIncomeLoss
|
141000000 | USD |
CY2010 | us-gaap |
Net Income Loss
NetIncomeLoss
|
125000000 | USD |
CY2011 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
0 | USD |
CY2010 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
-4000000 | USD |
CY2012 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
-1000000 | USD |
CY2012 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
10000000 | USD |
CY2011 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
6000000 | USD |
CY2010 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
17000000 | USD |
CY2012 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
302000000 | USD |
CY2010 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
267000000 | USD |
CY2011 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
309000000 | USD |
CY2012Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
1000000 | USD |
CY2012Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
2000000 | USD |
CY2012Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
3000000 | USD |
CY2012Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
3000000 | USD |
CY2012Q4 | us-gaap |
Operating Leases Future Minimum Payments Receivable Current
OperatingLeasesFutureMinimumPaymentsReceivableCurrent
|
3000000 | USD |
CY2012 | us-gaap |
Operating Leases Rent Expense Sublease Rentals1
OperatingLeasesRentExpenseSubleaseRentals1
|
3000000 | USD |
CY2010 | us-gaap |
Operating Leases Rent Expense Sublease Rentals1
OperatingLeasesRentExpenseSubleaseRentals1
|
3000000 | USD |
CY2011 | us-gaap |
Operating Leases Rent Expense Sublease Rentals1
OperatingLeasesRentExpenseSubleaseRentals1
|
3000000 | USD |
CY2011Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
6000000 | USD |
CY2012Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
93000000 | USD |
CY2011Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
98000000 | USD |
CY2011Q4 | us-gaap |
Other Assets Miscellaneous
OtherAssetsMiscellaneous
|
34000000 | USD |
CY2012Q4 | us-gaap |
Other Assets Miscellaneous
OtherAssetsMiscellaneous
|
37000000 | USD |
CY2012Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
62000000 | USD |
CY2011Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
65000000 | USD |
CY2012 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
0 | USD |
CY2011 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
-1000000 | USD |
CY2010 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
1000000 | USD |
CY2011Q4 | us-gaap |
Other Inventory Supplies
OtherInventorySupplies
|
37000000 | USD |
CY2012Q4 | us-gaap |
Other Inventory Supplies
OtherInventorySupplies
|
38000000 | USD |
CY2012Q4 | us-gaap |
Other Investments
OtherInvestments
|
0 | USD |
CY2011Q4 | us-gaap |
Other Investments
OtherInvestments
|
0 | USD |
CY2011Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
157000000 | USD |
CY2012Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
179000000 | USD |
CY2012Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
14000000 | USD |
CY2011Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
14000000 | USD |
CY2010 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-3000000 | USD |
CY2011 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-16000000 | USD |
CY2012 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-16000000 | USD |
CY2010 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
4000000 | USD |
CY2011 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
1000000 | USD |
CY2012 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
4000000 | USD |
CY2011Q4 | us-gaap |
Other Postretirement Defined Benefit Plan Liabilities Noncurrent
OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent
|
101000000 | USD |
CY2012Q4 | us-gaap |
Other Postretirement Defined Benefit Plan Liabilities Noncurrent
OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent
|
102000000 | USD |
CY2011 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-5000000 | USD |
CY2012 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-2000000 | USD |
CY2010 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
3000000 | USD |
CY2010 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
2000000 | USD |
CY2011 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
0 | USD |
CY2012 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
0 | USD |
CY2012 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
81000000 | USD |
CY2011 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
79000000 | USD |
CY2010 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
78000000 | USD |
CY2010 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
450000000 | USD |
CY2011 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
300000000 | USD |
CY2012 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
303000000 | USD |
CY2011 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
50000000 | USD |
CY2012 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
26000000 | USD |
CY2010 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
46000000 | USD |
CY2012 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
27000000 | USD |
CY2011 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
15000000 | USD |
CY2010 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
11000000 | USD |
CY2011Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
195000000 | USD |
CY2012Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
247000000 | USD |
CY2012 | us-gaap |
Pension Contributions
PensionContributions
|
0 | USD |
CY2011 | us-gaap |
Pension Contributions
PensionContributions
|
26000000 | USD |
CY2010 | us-gaap |
Pension Contributions
PensionContributions
|
30000000 | USD |
CY2012Q4 | us-gaap |
Preferred Stock No Par Value
PreferredStockNoParValue
|
0 | |
CY2011Q4 | us-gaap |
Preferred Stock No Par Value
PreferredStockNoParValue
|
0 | |
CY2012Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
30000000 | shares |
CY2011Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
30000000 | shares |
CY2012Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | shares |
CY2011Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | shares |
CY2011Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
CY2012Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
CY2011Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
0 | USD |
CY2012Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
0 | USD |
CY2012Q4 | us-gaap |
Price Risk Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value
PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
|
6000000 | USD |
CY2011Q4 | us-gaap |
Price Risk Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value
PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
|
19000000 | USD |
CY2011Q4 | us-gaap |
Price Risk Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value
PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
|
388000000 | USD |
CY2012Q4 | us-gaap |
Price Risk Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value
PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
|
200000000 | USD |
CY2011 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
0 | USD |
CY2012 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
0 | USD |
CY2010 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
19000000 | USD |
CY2011 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
9000000 | USD |
CY2012 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
8000000 | USD |
CY2010 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
53000000 | USD |
CY2010 | us-gaap |
Proceeds From Issuance Of Commercial Paper
ProceedsFromIssuanceOfCommercialPaper
|
19000000 | USD |
CY2012 | us-gaap |
Proceeds From Issuance Of Commercial Paper
ProceedsFromIssuanceOfCommercialPaper
|
-13000000 | USD |
CY2011 | us-gaap |
Proceeds From Issuance Of Commercial Paper
ProceedsFromIssuanceOfCommercialPaper
|
11000000 | USD |
CY2010 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
249000000 | USD |
CY2011 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | USD |
CY2012 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | USD |
CY2012 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
0 | USD |
CY2011 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
-4000000 | USD |
CY2010 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
10000000 | USD |
CY2012 | us-gaap |
Proceeds From Sale Maturity And Collections Of Investments
ProceedsFromSaleMaturityAndCollectionsOfInvestments
|
23000000 | USD |
CY2011 | us-gaap |
Proceeds From Sale Maturity And Collections Of Investments
ProceedsFromSaleMaturityAndCollectionsOfInvestments
|
46000000 | USD |
CY2010 | us-gaap |
Proceeds From Sale Maturity And Collections Of Investments
ProceedsFromSaleMaturityAndCollectionsOfInvestments
|
50000000 | USD |
CY2010 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
0 | USD |
CY2012 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
10000000 | USD |
CY2011 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
0 | USD |
CY2010 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
11000000 | USD |
CY2012 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
0 | USD |
CY2011 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
0 | USD |
CY2011 | us-gaap |
Profit Loss
ProfitLoss
|
147000000 | USD |
CY2010 | us-gaap |
Profit Loss
ProfitLoss
|
121000000 | USD |
CY2012 | us-gaap |
Profit Loss
ProfitLoss
|
140000000 | USD |
CY2011 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
11000000 | USD |
CY2012 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
6000000 | USD |
CY2010 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
7000000 | USD |
CY2011 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
5000000 | USD |
CY2010 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
13000000 | USD |
CY2012 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
6000000 | USD |
CY2012 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
|
4000000 | USD |
CY2011 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
|
3000000 | USD |
CY2010 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
|
9000000 | USD |
CY2012 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Rate
PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate
|
0.075 | |
CY2010 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Rate
PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate
|
0.076 | |
CY2011 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Rate
PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate
|
0.078 | |
CY2012Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
2559000000 | USD |
CY2011Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
2431000000 | USD |
CY2011Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
120000000 | USD |
CY2012Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
140000000 | USD |
CY2012Q4 | us-gaap |
Public Utilities Property Plant And Equipment Distribution
PublicUtilitiesPropertyPlantAndEquipmentDistribution
|
2816000000 | USD |
CY2011Q4 | us-gaap |
Public Utilities Property Plant And Equipment Distribution
PublicUtilitiesPropertyPlantAndEquipmentDistribution
|
2704000000 | USD |
CY2012Q4 | us-gaap |
Public Utilities Property Plant And Equipment Generation Or Processing
PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
|
2899000000 | USD |
CY2011Q4 | us-gaap |
Public Utilities Property Plant And Equipment Generation Or Processing
PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
|
2854000000 | USD |
CY2012Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
4392000000 | USD |
CY2011Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
4285000000 | USD |
CY2012Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
6951000000 | USD |
CY2011Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
6716000000 | USD |
CY2012Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission
PublicUtilitiesPropertyPlantAndEquipmentTransmission
|
412000000 | USD |
CY2011Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission
PublicUtilitiesPropertyPlantAndEquipmentTransmission
|
393000000 | USD |
CY2012Q4 | us-gaap |
Ratio Of Indebtedness To Net Capital1
RatioOfIndebtednessToNetCapital1
|
0.489 | |
CY2011Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
216000000 | USD |
CY2012Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
144000000 | USD |
CY2012Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
524000000 | USD |
CY2011Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
594000000 | USD |
CY2011Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
6000000 | USD |
CY2012Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
12000000 | USD |
CY2012Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
765000000 | USD |
CY2011Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
720000000 | USD |
CY2012 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
100000000 | USD |
CY2010 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
186000000 | USD |
CY2011 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
73000000 | USD |
CY2008 | us-gaap |
Repayments Of Pollution Control Bond
RepaymentsOfPollutionControlBond
|
5800000 | USD |
CY2011 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
0 | USD |
CY2010 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
11000000 | USD |
CY2012 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
0 | USD |
CY2012Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
893000000 | USD |
CY2011Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
833000000 | USD |
CY2013 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
3000000 | USD |
CY2012 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
4000000 | USD |
CY2010 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
2000000 | USD |
CY2014 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
1000000 | USD |
CY2011 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
4000000 | USD |
CY2012 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
|
22947 | shares |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
|
45081 | shares |
CY2011 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
|
106979 | shares |
CY2012 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
|
18.95 | |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
|
23.45 | |
CY2011 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
|
22.35 | |
CY2011 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
|
152657 | shares |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
|
191469 | shares |
CY2012 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
|
186495 | shares |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
19.18 | |
CY2011 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
23.84 | |
CY2012 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
24.72 | |
CY2011Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
|
491404 | shares |
CY2009Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
|
422263 | shares |
CY2012Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
|
440562 | shares |
CY2010Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
|
465428 | shares |
CY2012Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
|
22.54 | |
CY2011Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
|
18.54 | |
CY2009Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
|
19.82 | |
CY2010Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
|
17.88 | |
CY2011 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
|
19702 | shares |
CY2012 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
|
214390 | shares |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
|
103223 | shares |
CY2011 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
|
1000000 | USD |
CY2012 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
|
3000000 | USD |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
|
3000000 | USD |
CY2011 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
|
23.34 | |
CY2012 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
|
15.67 | |
CY2010 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
|
25.78 | |
CY2012Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
|
4687500 | shares |
CY2012Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
|
3824141 | shares |
CY2012Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
0 | USD |
CY2011Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.004 | |
CY2012Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.004 | |
CY2010Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.004 | |
CY2011 | us-gaap |
Shortterm Debt Average Outstanding Amount
ShorttermDebtAverageOutstandingAmount
|
2000000 | USD |
CY2010 | us-gaap |
Shortterm Debt Average Outstanding Amount
ShorttermDebtAverageOutstandingAmount
|
9000000 | USD |
CY2012 | us-gaap |
Shortterm Debt Average Outstanding Amount
ShorttermDebtAverageOutstandingAmount
|
4000000 | USD |
CY1997 | us-gaap |
Site Contingency Names Of Other Potentially Responsible Parties
SiteContingencyNamesOfOtherPotentiallyResponsibleParties
|
69 | |
CY2012 | us-gaap |
Site Contingency Names Of Other Potentially Responsible Parties
SiteContingencyNamesOfOtherPotentiallyResponsibleParties
|
100 | |
CY2011Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1663000000 | USD |
CY2012Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1728000000 | USD |
CY2012Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1730000000 | USD |
CY2011Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1666000000 | USD |
CY2012 | us-gaap |
Subsidiary Or Equity Method Investee Cumulative Percentage Ownership After All Transactions
SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
|
1.00 | |
CY2010 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
89000000 | USD |
CY2011 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
98000000 | USD |
CY2012 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
102000000 | USD |
CY2011Q4 | us-gaap |
Us Government Securities At Carrying Value
USGovernmentSecuritiesAtCarryingValue
|
12000000 | USD |
CY2012Q4 | us-gaap |
Us Government Securities At Carrying Value
USGovernmentSecuritiesAtCarryingValue
|
15000000 | USD |
CY2012 | us-gaap |
Unrealized Gain Loss On Securities
UnrealizedGainLossOnSecurities
|
-3000000 | USD |
CY2010 | us-gaap |
Unrealized Gain Loss On Securities
UnrealizedGainLossOnSecurities
|
5000000 | USD |
CY2011 | us-gaap |
Unrealized Gain Loss On Securities
UnrealizedGainLossOnSecurities
|
0 | USD |
CY2012Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | USD |
CY2010Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2000000 | USD |
CY2011Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | USD |
CY2011Q1 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions
|
2000000 | USD |
CY2010 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense
|
0 | USD |
CY2010 | us-gaap |
Unrecognized Tax Benefits Interest On Income Taxes Expense
UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense
|
1000000 | USD |
CY2011 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
-2000000 | USD |
CY2012Q4 | us-gaap |
Variable Interest Entity Consolidated Carrying Amount Assets And Liabilities Net
VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet
|
6000000 | USD |
CY2011Q4 | us-gaap |
Variable Interest Entity Consolidated Carrying Amount Assets And Liabilities Net
VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet
|
6000000 | USD |
CY2010 | us-gaap |
Variable Interest Entity Initial Consolidation Gain Or Loss
VariableInterestEntityInitialConsolidationGainOrLoss
|
4000000 | USD |
CY2012 | us-gaap |
Variable Interest Entity Ownership Percentage
VariableInterestEntityOwnershipPercentage
|
0.01 | |
CY2010 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
16000 | shares |
CY2012 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
149000 | shares |
CY2011 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
17000 | shares |
CY2010 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
75291000 | shares |
CY2012 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
75647000 | shares |
CY2011 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
75350000 | shares |
CY2010 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
75275000 | shares |
CY2011 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
75333000 | shares |
CY2012 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
75498000 | shares |
CY2010 | por |
A401 K Plan Company Contributions
A401KPlanCompanyContributions
|
15000000 | USD |
CY2012 | por |
A401 K Plan Company Contributions
A401KPlanCompanyContributions
|
16000000 | USD |
CY2011 | por |
A401 K Plan Company Contributions
A401KPlanCompanyContributions
|
16000000 | USD |
CY2011 | por |
Actual Refund Under Power Cost Adjustment Mechanism
ActualRefundUnderPowerCostAdjustmentMechanism
|
6000000 | USD |
CY2012Q4 | por |
Approved Rate For Deferred Account Under Amortization Low End Of Range
ApprovedRateForDeferredAccountUnderAmortizationLowEndOfRange
|
0.0147 | |
CY2012Q4 | por |
Approved Rate For Deferred Accounts Under Amortization High End Of Range
ApprovedRateForDeferredAccountsUnderAmortizationHighEndOfRange
|
0.0224 | |
CY2012 | por |
Asset Retirement Obligation Increase Related To Boardman Plant
AssetRetirementObligationIncreaseRelatedToBoardmanPlant
|
20000000 | USD |
CY2012Q4 | por |
Asset Retirement Obligation Non Utility Property
AssetRetirementObligationNonUtilityProperty
|
13000000 | USD |
CY2011Q4 | por |
Asset Retirement Obligation Non Utility Property
AssetRetirementObligationNonUtilityProperty
|
12000000 | USD |
CY2012 | por |
Asset Retirement Obligation Rate Recovery Related To Trojan Plant
AssetRetirementObligationRateRecoveryRelatedToTrojanPlant
|
4000000 | USD |
CY2012Q4 | por |
Asset Retirement Obligation Utility Plant
AssetRetirementObligationUtilityPlant
|
39000000 | USD |
CY2011Q4 | por |
Asset Retirement Obligation Utility Plant
AssetRetirementObligationUtilityPlant
|
38000000 | USD |
CY2010 | por |
Asset Retirement Removal Costs Included In Depreciation Expense
AssetRetirementRemovalCostsIncludedInDepreciationExpense
|
47000000 | USD |
CY2012 | por |
Asset Retirement Removal Costs Included In Depreciation Expense
AssetRetirementRemovalCostsIncludedInDepreciationExpense
|
55000000 | USD |
CY2011 | por |
Asset Retirement Removal Costs Included In Depreciation Expense
AssetRetirementRemovalCostsIncludedInDepreciationExpense
|
49000000 | USD |
CY2012Q4 | por |
Authorized Cost Of Capital
AuthorizedCostOfCapital
|
0.06065 | |
CY2003Q4 | por |
Class Action Damages Sought
ClassActionDamagesSought
|
260000000 | USD |
CY2012Q4 | por |
Collateral Aggregate Fair Value
CollateralAggregateFairValue
|
157000000 | USD |
CY2012 | por |
Commercial Paper Maximum Term
CommercialPaperMaximumTerm
|
270 | |
CY2012Q4 | por |
Commodity Contract Asset Current Electricity
CommodityContractAssetCurrentElectricity
|
1000000 | USD |
CY2011Q4 | por |
Commodity Contract Asset Current Electricity
CommodityContractAssetCurrentElectricity
|
2000000 | USD |
CY2012Q4 | por |
Commodity Contract Asset Current Natural Gas
CommodityContractAssetCurrentNaturalGas
|
3000000 | USD |
CY2011Q4 | por |
Commodity Contract Asset Current Natural Gas
CommodityContractAssetCurrentNaturalGas
|
17000000 | USD |
CY2011Q4 | por |
Commodity Contract Asset Electricity
CommodityContractAssetElectricity
|
2000000 | USD |
CY2012Q4 | por |
Commodity Contract Asset Electricity
CommodityContractAssetElectricity
|
1000000 | USD |
CY2011Q4 | por |
Commodity Contract Asset Natural Gas
CommodityContractAssetNaturalGas
|
17000000 | USD |
CY2012Q4 | por |
Commodity Contract Asset Natural Gas
CommodityContractAssetNaturalGas
|
5000000 | USD |
CY2012Q4 | por |
Commodity Contract Asset Noncurrent Natural Gas
CommodityContractAssetNoncurrentNaturalGas
|
2000000 | USD |
CY2011Q4 | por |
Commodity Contract Asset Noncurrent Natural Gas
CommodityContractAssetNoncurrentNaturalGas
|
0 | USD |
CY2011Q4 | por |
Commodity Contract Liabilities Electricity
CommodityContractLiabilitiesElectricity
|
137000000 | USD |
CY2012Q4 | por |
Commodity Contract Liabilities Electricity
CommodityContractLiabilitiesElectricity
|
82000000 | USD |
CY2011Q4 | por |
Commodity Contract Liabilities Natural Gas
CommodityContractLiabilitiesNaturalGas
|
251000000 | USD |
CY2012Q4 | por |
Commodity Contract Liabilities Natural Gas
CommodityContractLiabilitiesNaturalGas
|
118000000 | USD |
CY2011Q4 | por |
Commodity Contract Liability Current Electricity
CommodityContractLiabilityCurrentElectricity
|
66000000 | USD |
CY2012Q4 | por |
Commodity Contract Liability Current Electricity
CommodityContractLiabilityCurrentElectricity
|
44000000 | USD |
CY2011Q4 | por |
Commodity Contract Liability Current Natural Gas
CommodityContractLiabilityCurrentNaturalGas
|
150000000 | USD |
CY2012Q4 | por |
Commodity Contract Liability Current Natural Gas
CommodityContractLiabilityCurrentNaturalGas
|
83000000 | USD |
CY2011Q4 | por |
Commodity Contract Liability Noncurrent Electricity
CommodityContractLiabilityNoncurrentElectricity
|
71000000 | USD |
CY2012Q4 | por |
Commodity Contract Liability Noncurrent Electricity
CommodityContractLiabilityNoncurrentElectricity
|
38000000 | USD |
CY2011Q4 | por |
Commodity Contract Liability Noncurrent Natural Gas
CommodityContractLiabilityNoncurrentNaturalGas
|
101000000 | USD |
CY2012Q4 | por |
Commodity Contract Liability Noncurrent Natural Gas
CommodityContractLiabilityNoncurrentNaturalGas
|
35000000 | USD |
CY2012 | por |
Company Contribution Percent To401 K For Bargaining Employees
CompanyContributionPercentTo401KForBargainingEmployees
|
0.01 | |
CY2012 | por |
Company Contribution Percentage To401 K For Post2008 Hires
CompanyContributionPercentageTo401KForPost2008Hires
|
0.05 | |
CY2012 | por |
Company Match Post2008 Hire
CompanyMatchPost2008Hire
|
0.05 | |
CY2012 | por |
Company Match Pre2009 Hire
CompanyMatchPre2009Hire
|
0.06 | |
CY2011Q4 | por |
Concentration Of Risk Derivative Instruments Assets
ConcentrationOfRiskDerivativeInstrumentsAssets
|
0.59 | |
CY2012Q4 | por |
Concentration Of Risk Derivative Instruments Assets
ConcentrationOfRiskDerivativeInstrumentsAssets
|
0.61 | |
CY2012Q4 | por |
Concentration Of Risk Derivative Instruments Liabilities
ConcentrationOfRiskDerivativeInstrumentsLiabilities
|
0.48 | |
CY2011Q4 | por |
Concentration Of Risk Derivative Instruments Liabilities
ConcentrationOfRiskDerivativeInstrumentsLiabilities
|
0.39 | |
CY2012 | por |
Contribution To Health Reimbursement Account Earned Time Off
ContributionToHealthReimbursementAccountEarnedTimeOff
|
0 | USD |
CY2012 | por |
Contribution To Health Reimbursement Account Sick Time
ContributionToHealthReimbursementAccountSickTime
|
0.58 | USD |
CY2011 | por |
Contribution To Voluntary Employees Beneficiary Association Trust
ContributionToVoluntaryEmployeesBeneficiaryAssociationTrust
|
16000000 | USD |
CY2012 | por |
Contribution To Voluntary Employees Beneficiary Association Trust
ContributionToVoluntaryEmployeesBeneficiaryAssociationTrust
|
2000000 | USD |
CY2010 | por |
Contribution To Voluntary Employees Beneficiary Association Trust
ContributionToVoluntaryEmployeesBeneficiaryAssociationTrust
|
1000000 | USD |
CY2011Q4 | por |
Corporate Debt Securities Held In Decommissioning Trust Assets
CorporateDebtSecuritiesHeldInDecommissioningTrustAssets
|
11000000 | USD |
CY2012Q4 | por |
Corporate Debt Securities Held In Decommissioning Trust Assets
CorporateDebtSecuritiesHeldInDecommissioningTrustAssets
|
8000000 | USD |
CY2010 | por |
Cost Of Purchased Power And Fuel
CostOfPurchasedPowerAndFuel
|
829000000 | USD |
CY2011 | por |
Cost Of Purchased Power And Fuel
CostOfPurchasedPowerAndFuel
|
760000000 | USD |
CY2012 | por |
Cost Of Purchased Power And Fuel
CostOfPurchasedPowerAndFuel
|
726000000 | USD |
CY2011Q4 | por |
Counterparty A
CounterpartyA
|
0.19 | |
CY2012Q4 | por |
Counterparty A
CounterpartyA
|
0.21 | |
CY2012Q4 | por |
Counterparty B
CounterpartyB
|
0.13 | |
CY2011Q4 | por |
Counterparty B
CounterpartyB
|
0.02 | |
CY2011Q4 | por |
Counterparty C
CounterpartyC
|
0.16 | |
CY2012Q4 | por |
Counterparty C
CounterpartyC
|
0.11 | |
CY2011Q4 | por |
Counterparty D
CounterpartyD
|
0.09 | |
CY2012Q4 | por |
Counterparty D
CounterpartyD
|
0.10 | |
CY2012Q4 | por |
Counterparty E
CounterpartyE
|
0.06 | |
CY2011Q4 | por |
Counterparty E
CounterpartyE
|
0.13 | |
CY2012Q4 | por |
Counterparty F
CounterpartyF
|
0.24 | |
CY2011Q4 | por |
Counterparty F
CounterpartyF
|
0.23 | |
CY2011Q4 | por |
Counterparty G Prm Liabilities
CounterpartyGPrmLiabilities
|
0.10 | |
CY2012Q4 | por |
Counterparty G Prm Liabilities
CounterpartyGPrmLiabilities
|
0.14 | |
CY2011Q4 | por |
Counterparty H For Prm Liabs
CounterpartyHForPrmLiabs
|
0.06 | |
CY2012Q4 | por |
Counterparty H For Prm Liabs
CounterpartyHForPrmLiabs
|
0.10 | |
CY2012Q4 | por |
Credit Facilities300 Million Revolver
CreditFacilities300MillionRevolver
|
300000000 | USD |
CY2012Q4 | por |
Credit Facilities370 Million Revolver
CreditFacilities370MillionRevolver
|
400000000 | USD |
CY2012Q4 | por |
Current Derivative Assets
CurrentDerivativeAssets
|
4000000 | USD |
CY2011Q4 | por |
Current Derivative Assets
CurrentDerivativeAssets
|
19000000 | USD |
CY2011Q4 | por |
Current Derivative Liabilities
CurrentDerivativeLiabilities
|
216000000 | USD |
CY2012Q4 | por |
Current Derivative Liabilities
CurrentDerivativeLiabilities
|
127000000 | USD |
CY2012 | por |
Damages Sought In Usdoe Claim
DamagesSoughtInUsdoeClaim
|
112000000 | USD |
CY2011Q4 | por |
Debt Securities Domestic Government
DebtSecuritiesDomesticGovernment
|
3000000 | USD |
CY2012Q4 | por |
Debt Securities Domestic Government
DebtSecuritiesDomesticGovernment
|
2000000 | USD |
CY2011Q4 | por |
Debt Securities Domestic Government Other Postretirement Benefit Plan Assets
DebtSecuritiesDomesticGovernmentOtherPostretirementBenefitPlanAssets
|
3000000 | USD |
CY2012Q4 | por |
Debt Securities Domestic Government Other Postretirement Benefit Plan Assets
DebtSecuritiesDomesticGovernmentOtherPostretirementBenefitPlanAssets
|
3000000 | USD |
CY2011 | por |
Decoupling Mechanism Deferrals Net
DecouplingMechanismDeferralsNet
|
3000000 | USD |
CY2012 | por |
Decoupling Mechanism Deferrals Net
DecouplingMechanismDeferralsNet
|
2000000 | USD |
CY2010 | por |
Decoupling Mechanism Deferrals Net
DecouplingMechanismDeferralsNet
|
-10000000 | USD |
CY2011 | por |
Deferred Income Tax Expense Footnote
DeferredIncomeTaxExpenseFootnote
|
56000000 | USD |
CY2012 | por |
Deferred Income Tax Expense Footnote
DeferredIncomeTaxExpenseFootnote
|
47000000 | USD |
CY2010 | por |
Deferred Income Tax Expense Footnote
DeferredIncomeTaxExpenseFootnote
|
73000000 | USD |
CY2011Q4 | por |
Deferred Tax Assets Price Risk Management
DeferredTaxAssetsPriceRiskManagement
|
145000000 | USD |
CY2012Q4 | por |
Deferred Tax Assets Price Risk Management
DeferredTaxAssetsPriceRiskManagement
|
77000000 | USD |
CY2011Q4 | por |
Deferred Tax Assets Tax Credits Net Of Valuation Allowance
DeferredTaxAssetsTaxCreditsNetOfValuationAllowance
|
56000000 | USD |
CY2012Q4 | por |
Deferred Tax Assets Tax Credits Net Of Valuation Allowance
DeferredTaxAssetsTaxCreditsNetOfValuationAllowance
|
55000000 | USD |
CY2011 | por |
Defined Benefit Plan Current Annual Rate Of Health Care Cost Increase
DefinedBenefitPlanCurrentAnnualRateOfHealthCareCostIncrease
|
0.08 | |
CY2012 | por |
Defined Benefit Plan Current Annual Rate Of Health Care Cost Increase
DefinedBenefitPlanCurrentAnnualRateOfHealthCareCostIncrease
|
0.08 | |
CY2010 | por |
Defined Benefit Plan Current Annual Rate Of Health Care Cost Increase
DefinedBenefitPlanCurrentAnnualRateOfHealthCareCostIncrease
|
0.08 | |
CY2010 | por |
Depreciation Expense Rate
DepreciationExpenseRate
|
0.039 | |
CY2011 | por |
Depreciation Expense Rate
DepreciationExpenseRate
|
0.037 | |
CY2012 | por |
Depreciation Expense Rate
DepreciationExpenseRate
|
0.038 | |
CY2012Q4 | por |
Derivative Assets Total
DerivativeAssetsTotal
|
6000000 | USD |
CY2011Q4 | por |
Derivative Assets Total
DerivativeAssetsTotal
|
19000000 | USD |
CY2011Q4 | por |
Derivative Collateral Master Netting Arrangements Letters Of Credit
DerivativeCollateralMasterNettingArrangementsLettersOfCredit
|
26000000 | USD |
CY2012Q4 | por |
Derivative Collateral Master Netting Arrangements Letters Of Credit
DerivativeCollateralMasterNettingArrangementsLettersOfCredit
|
18000000 | USD |
CY2012Q4 | por |
Derivative Liabilities Total
DerivativeLiabilitiesTotal
|
200000000 | USD |
CY2011Q4 | por |
Derivative Liabilities Total
DerivativeLiabilitiesTotal
|
388000000 | USD |
CY2012Q4 | por |
Dividend Reinvestment And Direct Stock Purchase Plan Number Of Available Shares
DividendReinvestmentAndDirectStockPurchasePlanNumberOfAvailableShares
|
2490267 | shares |
CY2012 | por |
Dividend Reinvestment And Direct Stock Purchase Plan Shares
DividendReinvestmentAndDirectStockPurchasePlanShares
|
2500000 | shares |
CY2011Q4 | por |
Domestic Equity Securities
DomesticEquitySecurities
|
9000000 | USD |
CY2012Q4 | por |
Domestic Equity Securities
DomesticEquitySecurities
|
4000000 | USD |
CY2011Q4 | por |
Domestic Equity Securities Defined Benefit Pension Plan Assets
DomesticEquitySecuritiesDefinedBenefitPensionPlanAssets
|
163000000 | USD |
CY2012Q4 | por |
Domestic Equity Securities Defined Benefit Pension Plan Assets
DomesticEquitySecuritiesDefinedBenefitPensionPlanAssets
|
165000000 | USD |
CY2011Q4 | por |
Domestic Equity Securities Other Postretirement Benefit Plan Assets At Fair Value
DomesticEquitySecuritiesOtherPostretirementBenefitPlanAssetsAtFairValue
|
13000000 | USD |
CY2012Q4 | por |
Domestic Equity Securities Other Postretirement Benefit Plan Assets At Fair Value
DomesticEquitySecuritiesOtherPostretirementBenefitPlanAssetsAtFairValue
|
9000000 | USD |
CY2011Q4 | por |
Domestic Government And Corporate Credit Defined Benefit Pension Plan Assets
DomesticGovernmentAndCorporateCreditDefinedBenefitPensionPlanAssets
|
78000000 | USD |
CY2012Q4 | por |
Domestic Government And Corporate Credit Defined Benefit Pension Plan Assets
DomesticGovernmentAndCorporateCreditDefinedBenefitPensionPlanAssets
|
165000000 | USD |
CY2012 | por |
Employee Stock Purchase Plan Base Pay Threshold
EmployeeStockPurchasePlanBasePayThreshold
|
0.1 | |
CY2012Q4 | por |
Employee Stock Purchase Plan Number Of Available Shares
EmployeeStockPurchasePlanNumberOfAvailableShares
|
478758 | shares |
CY2012 | por |
Employee Stock Purchase Plan Purchase Price
EmployeeStockPurchasePlanPurchasePrice
|
0.95 | |
CY2012 | por |
Employee Stock Purchase Plan Purchased Stock Value Limitation
EmployeeStockPurchasePlanPurchasedStockValueLimitation
|
25000 | USD |
CY2012 | por |
Employee Stock Purchase Plan Share Purchase Limitation
EmployeeStockPurchasePlanSharePurchaseLimitation
|
1500 | shares |
CY2012Q4 | por |
Employee Stock Purchase Plan Shares Authorized
EmployeeStockPurchasePlanSharesAuthorized
|
625000 | shares |
CY2012 | por |
Estimated Average Service Life Hydro Production Plant
EstimatedAverageServiceLifeHydroProductionPlant
|
87 | |
CY2012 | por |
Estimated Average Service Life Wind Production Plant
EstimatedAverageServiceLifeWindProductionPlant
|
27 | |
CY2012 | por |
Estimated Average Service Lives Distribution Plant
EstimatedAverageServiceLivesDistributionPlant
|
40 | |
CY2012 | por |
Estimated Average Service Lives General Plant
EstimatedAverageServiceLivesGeneralPlant
|
13 | |
CY2012 | por |
Estimated Average Service Lives Transmission Plant
EstimatedAverageServiceLivesTransmissionPlant
|
53 | |
CY2012 | por |
Estimated Award Range From Usdoe Claim High
EstimatedAwardRangeFromUsdoeClaimHigh
|
75000000 | USD |
CY2012 | por |
Estimated Award Range From Usdoe Claim Low
EstimatedAwardRangeFromUsdoeClaimLow
|
65000000 | USD |
CY2012 | por |
Estimated Refund Under Power Cost Adjustment Mechanism
EstimatedRefundUnderPowerCostAdjustmentMechanism
|
0 | USD |
CY2010 | por |
Estimated Refund Under Power Cost Adjustment Mechanism
EstimatedRefundUnderPowerCostAdjustmentMechanism
|
0 | USD |
CY2011 | por |
Estimated Refund Under Power Cost Adjustment Mechanism
EstimatedRefundUnderPowerCostAdjustmentMechanism
|
10000000 | USD |
CY2012 | por |
Estimated Remaining Useful Life Of Facility Acquired
EstimatedRemainingUsefulLifeOfFacilityAcquired
|
0.75 | |
CY2012Q4 | por |
Jointly Owned Utility Plant Ownership Amount Of Peltonround Butte Plant Accumulated Depreciation
JointlyOwnedUtilityPlantOwnershipAmountOfPeltonroundButtePlantAccumulatedDepreciation
|
48000000 | USD |
CY2011 | por |
Franchise Taxes
FranchiseTaxes
|
41000000 | USD |
CY2012Q4 | por |
Incorporated Cities
IncorporatedCities
|
52 | |
CY2012Q4 | por |
Fair Value Money Market Funds
FairValueMoneyMarketFunds
|
2000000 | USD |
CY2011Q4 | por |
Fair Value Of Money Market Funds Other Post Retirement Benefit Plan Assets At Fair Value
FairValueOfMoneyMarketFundsOtherPostRetirementBenefitPlanAssetsAtFairValue
|
7000000 | USD |
CY2012Q4 | por |
Fair Value Of Money Market Funds Other Post Retirement Benefit Plan Assets At Fair Value
FairValueOfMoneyMarketFundsOtherPostRetirementBenefitPlanAssetsAtFairValue
|
8000000 | USD |
CY2012 | por |
Ferc Authorized Short Term Debt Effective Through February62014
FercAuthorizedShortTermDebtEffectiveThroughFebruary62014
|
700000000 | USD |
CY2012Q4 | por |
First Mortgage Bonds Maximum Rate
FirstMortgageBondsMaximumRate
|
0.0931 | |
CY2012Q4 | por |
First Mortgage Bonds Minimum Rate
FirstMortgageBondsMinimumRate
|
0.0346 | |
CY2010 | por |
Franchise Taxes
FranchiseTaxes
|
39000000 | USD |
CY2012 | por |
Franchise Taxes
FranchiseTaxes
|
42000000 | USD |
CY2011Q4 | por |
International Equity Securities
InternationalEquitySecurities
|
1000000 | USD |
CY2012Q4 | por |
International Equity Securities
InternationalEquitySecurities
|
1000000 | USD |
CY2011Q4 | por |
International Equity Securities Defined Benefit Pension Plan Assets
InternationalEquitySecuritiesDefinedBenefitPensionPlanAssets
|
105000000 | USD |
CY2012Q4 | por |
International Equity Securities Defined Benefit Pension Plan Assets
InternationalEquitySecuritiesDefinedBenefitPensionPlanAssets
|
166000000 | USD |
CY2011Q4 | por |
International Equity Securities Other Post Retirement Assets At Fair Value
InternationalEquitySecuritiesOtherPostRetirementAssetsAtFairValue
|
4000000 | USD |
CY2012Q4 | por |
International Equity Securities Other Post Retirement Assets At Fair Value
InternationalEquitySecuritiesOtherPostRetirementAssetsAtFairValue
|
8000000 | USD |
CY1993Q4 | por |
Investment In Trojan
InvestmentInTrojan
|
0.87 | |
CY2012Q4 | por |
Jointly Owned Plant Boardman Plant In Service Year
JointlyOwnedPlantBoardmanPlantInServiceYear
|
1980 | |
CY2012Q4 | por |
Jointly Owned Plant Colstrip Plant In Service Year
JointlyOwnedPlantColstripPlantInServiceYear
|
1986 | |
CY2012Q4 | por |
Jointly Owned Plant Pelton In Service Year
JointlyOwnedPlantPeltonInServiceYear
|
1958 | |
CY2012Q4 | por |
Jointly Owned Plant Round Butte In Service Year
JointlyOwnedPlantRoundButteInServiceYear
|
1964 | |
CY2012Q4 | por |
Jointly Owned Utility Plant Gross Ownership Amount Of Boardman Plant In Service
JointlyOwnedUtilityPlantGrossOwnershipAmountOfBoardmanPlantInService
|
479000000 | USD |
CY2012Q4 | por |
Jointly Owned Utility Plant Gross Ownership Amount Of Colstrip Plant In Service
JointlyOwnedUtilityPlantGrossOwnershipAmountOfColstripPlantInService
|
507000000 | USD |
CY2012Q4 | por |
Jointly Owned Utility Plant Gross Ownership Amount Of Peltonround Butte Plant In Service
JointlyOwnedUtilityPlantGrossOwnershipAmountOfPeltonroundButtePlantInService
|
215000000 | USD |
CY2012Q4 | por |
Jointly Owned Utility Plant Ownership Amount Of Boardman Plant Accumulated Depreciation
JointlyOwnedUtilityPlantOwnershipAmountOfBoardmanPlantAccumulatedDepreciation
|
308000000 | USD |
CY2012Q4 | por |
Jointly Owned Utility Plant Ownership Amount Of Colstrip Plant Accumulated Depreciation
JointlyOwnedUtilityPlantOwnershipAmountOfColstripPlantAccumulatedDepreciation
|
328000000 | USD |
CY2012Q4 | por |
Jointly Owned Utility Plant Ownership Amount Of Construction Work In Progress Boardman
JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressBoardman
|
8000000 | USD |
CY2012Q4 | por |
Jointly Owned Utility Plant Ownership Amount Of Construction Work In Progress Colstrip
JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressColstrip
|
3000000 | USD |
CY2012Q4 | por |
Jointly Owned Utility Plant Ownership Amount Of Construction Work In Progress Peltonround Butte
JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgressPeltonroundButte
|
5000000 | USD |
CY2012Q4 | por |
Jointly Owned Utility Plant Proportionate Ownership Share Of Boardman
JointlyOwnedUtilityPlantProportionateOwnershipShareOfBoardman
|
0.6500 | |
CY2012Q4 | por |
Jointly Owned Utility Plant Proportionate Ownership Share Of Colstrip
JointlyOwnedUtilityPlantProportionateOwnershipShareOfColstrip
|
0.2000 | |
CY2012Q4 | por |
Jointly Owned Utility Plant Proportionate Ownership Share Of Peltonround Butte
JointlyOwnedUtilityPlantProportionateOwnershipShareOfPeltonroundButte
|
0.6667 | |
CY2011 | por |
Level3 Realized And Unrealized Losses Offset By Effect Of Regulatory Accounting
Level3RealizedAndUnrealizedLossesOffsetByEffectOfRegulatoryAccounting
|
88000000 | USD |
CY2012 | por |
Level3 Realized And Unrealized Losses Offset By Effect Of Regulatory Accounting
Level3RealizedAndUnrealizedLossesOffsetByEffectOfRegulatoryAccounting
|
14000000 | USD |
CY2010 | por |
Level3 Realized And Unrealized Losses Offset By Effect Of Regulatory Accounting
Level3RealizedAndUnrealizedLossesOffsetByEffectOfRegulatoryAccounting
|
95000000 | USD |
CY2012 | por |
Line Of Credit Facitlity Covenant Terms One Month Term
LineOfCreditFacitlityCovenantTermsOneMonthTerm
|
one | |
CY2012 | por |
Line Of Credit Facitlity Covenant Terms Six Month Term
LineOfCreditFacitlityCovenantTermsSixMonthTerm
|
six | |
CY2012 | por |
Line Of Credit Facitlity Covenant Terms Three Month Term
LineOfCreditFacitlityCovenantTermsThreeMonthTerm
|
three | |
CY2012 | por |
Line Of Credit Facitlity Covenant Terms Two Month Term
LineOfCreditFacitlityCovenantTermsTwoMonthTerm
|
two | |
CY2012Q4 | por |
Long Term Debt First Mortgage Bonds
LongTermDebtFirstMortgageBonds
|
1515000000 | USD |
CY2011Q4 | por |
Long Term Debt First Mortgage Bonds
LongTermDebtFirstMortgageBonds
|
1615000000 | USD |
CY2012Q4 | por |
Long Term Pollution Control Bond Rate
LongTermPollutionControlBondRate
|
0.05 | |
CY2012Q4 | por |
Low Estimate Of Range Of Cost Of Portland Harbor Cleanup In Total
LowEstimateOfRangeOfCostOfPortlandHarborCleanupInTotal
|
169000000 | USD |
CY2012 | por |
Maximum Percentage Of Output Possibley Allocated
MaximumPercentageOfOutputPossibleyAllocated
|
0.25 | |
CY2012Q4 | por |
Maximum Potential Liability Under Power And Transmission Agreements
MaximumPotentialLiabilityUnderPowerAndTransmissionAgreements
|
47000000 | USD |
CY2011Q4 | por |
Money Market Funds Defined Benefit Pension Plan Assets
MoneyMarketFundsDefinedBenefitPensionPlanAssets
|
3000000 | USD |
CY2012Q4 | por |
Money Market Funds Defined Benefit Pension Plan Assets
MoneyMarketFundsDefinedBenefitPensionPlanAssets
|
1000000 | USD |
CY2012 | por |
Net Actuarial Loss Portion Of Amortization From Aocl For Non Qualified Benefits
NetActuarialLossPortionOfAmortizationFromAoclForNonQualifiedBenefits
|
1000000 | USD |
CY2012 | por |
Net Actuarial Loss Portion Of Amortization From Aocl For Pension Benefits
NetActuarialLossPortionOfAmortizationFromAoclForPensionBenefits
|
24000000 | USD |
CY2012 | por |
Net Actuarial Loss Portion Of Amortiztion Of Aocl For Other Postretirement Benefits
NetActuarialLossPortionOfAmortiztionOfAoclForOtherPostretirementBenefits
|
1000000 | USD |
CY2011 | por |
Net Gain Or Loss Recognized In Statement Of Income Offset By Regulatory Accounting
NetGainOrLossRecognizedInStatementOfIncomeOffsetByRegulatoryAccounting
|
192000000 | USD |
CY2012 | por |
Net Gain Or Loss Recognized In Statement Of Income Offset By Regulatory Accounting
NetGainOrLossRecognizedInStatementOfIncomeOffsetByRegulatoryAccounting
|
42000000 | USD |
CY2010 | por |
Net Gain Or Loss Recognized In Statement Of Income Offset By Regulatory Accounting
NetGainOrLossRecognizedInStatementOfIncomeOffsetByRegulatoryAccounting
|
258000000 | USD |
CY2011Q4 | por |
Net Liabilities From Price Risk Management Activities Classified As Level3
NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3
|
79000000 | USD |
CY2010Q4 | por |
Net Liabilities From Price Risk Management Activities Classified As Level3
NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3
|
120000000 | USD |
CY2012Q4 | por |
Net Liabilities From Price Risk Management Activities Classified As Level3
NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3
|
16000000 | USD |
CY2009Q4 | por |
Net Liabilities From Price Risk Management Activities Classified As Level3
NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3
|
154000000 | USD |
CY2012 | por |
Net Realized Losses
NetRealizedLosses
|
1000000 | USD |
CY2011 | por |
Net Taxes On Change In Compensation Retirement Benefits Liability And Amortization
NetTaxesOnChangeInCompensationRetirementBenefitsLiabilityAndAmortization
|
1000000 | USD |
CY2010 | por |
Net Taxes On Change In Compensation Retirement Benefits Liability And Amortization
NetTaxesOnChangeInCompensationRetirementBenefitsLiabilityAndAmortization
|
1000000 | USD |
CY2012 | por |
Net Taxes On Change In Compensation Retirement Benefits Liability And Amortization
NetTaxesOnChangeInCompensationRetirementBenefitsLiabilityAndAmortization
|
0 | USD |
CY2012 | por |
Net Variable Power Cost Underrun
NetVariablePowerCostUnderrun
|
17000000 | USD |
CY2010 | por |
Net Variable Power Cost Underrun
NetVariablePowerCostUnderrun
|
12000000 | USD |
CY2011 | por |
Net Variable Power Cost Underrun
NetVariablePowerCostUnderrun
|
34000000 | USD |
CY2011Q4 | por |
Noncurrent Derivative Liabilities
NoncurrentDerivativeLiabilities
|
172000000 | USD |
CY2012Q4 | por |
Noncurrent Derivative Liabilities
NoncurrentDerivativeLiabilities
|
73000000 | USD |
CY2012Q4 | por |
Number Of Retail Customers
NumberOfRetailCustomers
|
828354 | shares |
CY2012Q4 | por |
Number Of Union Employees
NumberOfUnionEmployees
|
809 | shares |
CY2012Q4 | por |
Number Of Union Employees Subject To Agreement A
NumberOfUnionEmployeesSubjectToAgreementA
|
775 | shares |
CY2012Q4 | por |
Number Of Union Employees Subject To Agreement B
NumberOfUnionEmployeesSubjectToAgreementB
|
34 | shares |
CY2011Q4 | por |
Other Current Liabilities Other
OtherCurrentLiabilitiesOther
|
62000000 | USD |
CY2012Q4 | por |
Other Current Liabilities Other
OtherCurrentLiabilitiesOther
|
77000000 | USD |
CY2011Q4 | por |
Other Post Retirement Benefit Plan Assets Total
OtherPostRetirementBenefitPlanAssetsTotal
|
27000000 | USD |
CY2012Q4 | por |
Other Post Retirement Benefit Plan Assets Total
OtherPostRetirementBenefitPlanAssetsTotal
|
28000000 | USD |
CY2012Q4 | por |
Otherpostretirementdefinedbenefitplanliabilitycurrent
Otherpostretirementdefinedbenefitplanliabilitycurrent
|
2000000 | USD |
CY2011Q4 | por |
Otherpostretirementdefinedbenefitplanliabilitycurrent
Otherpostretirementdefinedbenefitplanliabilitycurrent
|
2000000 | USD |
CY1985 | por |
Ownership Interest In Boardman Sold
OwnershipInterestInBoardmanSold
|
0.15 | |
CY1985 | por |
Ownership Interest In Pacific Northwest Intertie Sold
OwnershipInterestInPacificNorthwestIntertieSold
|
0.10714 | |
CY2012Q4 | por |
Percent Of States Population
PercentOfStatesPopulation
|
0.44 | |
CY2012Q4 | por |
Pollution Control Revenue Bonds Owned By Pge
PollutionControlRevenueBondsOwnedByPge
|
21000000 | USD |
CY2011Q4 | por |
Pollution Control Revenue Bonds Owned By Pge
PollutionControlRevenueBondsOwnedByPge
|
21000000 | USD |
CY2012 | por |
Potential Income Tax Liability
PotentialIncomeTaxLiability
|
12000000 | USD |
CY2011 | por |
Potential Refund Under Pcam
PotentialRefundUnderPcam
|
17000000 | USD |
CY2012 | por |
Power Cost Deadband Lower Threshold
PowerCostDeadbandLowerThreshold
|
15000000 | USD |
CY2012 | por |
Power Cost Deadband Upper Threshold
PowerCostDeadbandUpperThreshold
|
30000000 | USD |
CY2012Q4 | por |
Preliminary Engineering
PreliminaryEngineering
|
14000000 | USD |
CY2011Q4 | por |
Preliminary Engineering
PreliminaryEngineering
|
10000000 | USD |
CY2012 | por |
Preliminary Engineering Costs Expensed
PreliminaryEngineeringCostsExpensed
|
0 | USD |
CY2011 | por |
Preliminary Engineering Costs Expensed
PreliminaryEngineeringCostsExpensed
|
0 | USD |
CY2010 | por |
Preliminary Engineering Costs Expensed
PreliminaryEngineeringCostsExpensed
|
0 | USD |
CY2012 | por |
Preliminary Engineering Transferred To Construction Work In Progress
PreliminaryEngineeringTransferredToConstructionWorkInProgress
|
0 | USD |
CY2010 | por |
Preliminary Engineering Transferred To Construction Work In Progress
PreliminaryEngineeringTransferredToConstructionWorkInProgress
|
0 | USD |
CY2011 | por |
Preliminary Engineering Transferred To Construction Work In Progress
PreliminaryEngineeringTransferredToConstructionWorkInProgress
|
7000000 | USD |
CY2010 | por |
Premium Paid On Repayment Of Long Term Debt
PremiumPaidOnRepaymentOfLongTermDebt
|
0 | USD |
CY2012 | por |
Premium Paid On Repayment Of Long Term Debt
PremiumPaidOnRepaymentOfLongTermDebt
|
0 | USD |
CY2011 | por |
Premium Paid On Repayment Of Long Term Debt
PremiumPaidOnRepaymentOfLongTermDebt
|
-7000000 | USD |
CY2012 | por |
Prior Service Cost Portion Of Amortization Of Aocl For Other Postretirement Benefits
PriorServiceCostPortionOfAmortizationOfAoclForOtherPostretirementBenefits
|
1000000 | USD |
CY2011Q4 | por |
Private Equity Funds
PrivateEquityFunds
|
32000000 | USD |
CY2012Q4 | por |
Private Equity Funds
PrivateEquityFunds
|
32000000 | USD |
CY2011Q4 | por |
Public Utilities Property Plant And Equipment General
PublicUtilitiesPropertyPlantAndEquipmentGeneral
|
314000000 | USD |
CY2012Q4 | por |
Public Utilities Property Plant And Equipment General
PublicUtilitiesPropertyPlantAndEquipmentGeneral
|
327000000 | USD |
CY2011Q4 | por |
Public Utilities Property Plant And Equipment Intangible
PublicUtilitiesPropertyPlantAndEquipmentIntangible
|
331000000 | USD |
CY2012Q4 | por |
Public Utilities Property Plant And Equipment Intangible
PublicUtilitiesPropertyPlantAndEquipmentIntangible
|
357000000 | USD |
CY2012 | por |
Realized And Unrealized Gains And Losses Net Commodity Contract
RealizedAndUnrealizedGainsAndLossesNetCommodityContract
|
15000000 | USD |
CY2011 | por |
Realized And Unrealized Gains And Losses Net Commodity Contract
RealizedAndUnrealizedGainsAndLossesNetCommodityContract
|
86000000 | USD |
CY2010 | por |
Realized And Unrealized Gains And Losses Net Commodity Contract
RealizedAndUnrealizedGainsAndLossesNetCommodityContract
|
65000000 | USD |
CY2012 | por |
Realized And Unrealized Gains And Losses Net Commodity Contracts Electricity
RealizedAndUnrealizedGainsAndLossesNetCommodityContractsElectricity
|
56000000 | USD |
CY2011 | por |
Realized And Unrealized Gains And Losses Net Commodity Contracts Electricity
RealizedAndUnrealizedGainsAndLossesNetCommodityContractsElectricity
|
117000000 | USD |
CY2010 | por |
Realized And Unrealized Gains And Losses Net Commodity Contracts Electricity
RealizedAndUnrealizedGainsAndLossesNetCommodityContractsElectricity
|
127000000 | USD |
CY2012 | por |
Realized And Unrealized Gains And Losses Net Commodity Contracts Natural Gas
RealizedAndUnrealizedGainsAndLossesNetCommodityContractsNaturalGas
|
19000000 | USD |
CY2010 | por |
Realized And Unrealized Gains And Losses Net Commodity Contracts Natural Gas
RealizedAndUnrealizedGainsAndLossesNetCommodityContractsNaturalGas
|
192000000 | USD |
CY2011 | por |
Realized And Unrealized Gains And Losses Net Commodity Contracts Natural Gas
RealizedAndUnrealizedGainsAndLossesNetCommodityContractsNaturalGas
|
98000000 | USD |
CY2008Q3 | por |
Refund To Customers For Trojan Investment Including Interest
RefundToCustomersForTrojanInvestmentIncludingInterest
|
33100000 | USD |
CY2000Q3 | por |
Regulatory Asset Related To Trojan
RegulatoryAssetRelatedToTrojan
|
5000000 | USD |
CY2012Q4 | por |
Regulatory Assets Earning Rate Of Return At Approved Rate
RegulatoryAssetsEarningRateOfReturnAtApprovedRate
|
3000000 | USD |
CY2012Q4 | por |
Regulatory Assets Earning Rate Of Return At Cost Of Capital
RegulatoryAssetsEarningRateOfReturnAtCostOfCapital
|
18000000 | USD |
CY2012Q4 | por |
Regulatory Assets Earning Rate Of Return By Inclusion In Rate Base
RegulatoryAssetsEarningRateOfReturnByInclusionInRateBase
|
10000000 | USD |
CY2012Q4 | por |
Regulatory Assets Earning Return
RegulatoryAssetsEarningReturn
|
31000000 | USD |
CY2011Q4 | por |
Regulatory Assets Earning Return Other Category
RegulatoryAssetsEarningReturnOtherCategory
|
21000000 | USD |
CY2012Q4 | por |
Regulatory Assets Earning Return Other Category
RegulatoryAssetsEarningReturnOtherCategory
|
15000000 | USD |
CY2012Q4 | por |
Regulatory Assets From Price Risk Management Activities
RegulatoryAssetsFromPriceRiskManagementActivities
|
4000000 | USD |
CY2011Q4 | por |
Regulatory Assets From Price Risk Management Activities
RegulatoryAssetsFromPriceRiskManagementActivities
|
19000000 | USD |
CY2011 | por |
Regulatory Deferral Of Settled Derivative Instruments
RegulatoryDeferralOfSettledDerivativeInstruments
|
12000000 | USD |
CY2010 | por |
Regulatory Deferral Of Settled Derivative Instruments
RegulatoryDeferralOfSettledDerivativeInstruments
|
26000000 | USD |
CY2012 | por |
Regulatory Deferral Of Settled Derivative Instruments
RegulatoryDeferralOfSettledDerivativeInstruments
|
-9000000 | USD |
CY2012Q4 | por |
Remaining Recovery Period Of Regulatory Asset Debt Reacquisition Costs For Which No Return On Investment During Recovery Period Is Provided
RemainingRecoveryPeriodOfRegulatoryAssetDebtReacquisitionCostsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided
|
7 years | |
CY2012Q4 | por |
Remaining Recovery Period Of Regulatory Asset Deferred Broker Settlements For Which No Return On Investment During Recovery Period Is Provided
RemainingRecoveryPeriodOfRegulatoryAssetDeferredBrokerSettlementsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided
|
1 year | |
CY2012Q4 | por |
Remaining Recovery Period Of Regulatory Assets Price Risk Management For Which No Return On Investment Is Provided
RemainingRecoveryPeriodOfRegulatoryAssetsPriceRiskManagementForWhichNoReturnOnInvestmentIsProvided
|
2 years | |
CY2012Q4 | por |
Remaining Refund Period Of Power Cost Adjustment Mechanism
RemainingRefundPeriodOfPowerCostAdjustmentMechanism
|
1 year | |
CY2010 | por |
Renewable Adjustment Clause Deferrals
RenewableAdjustmentClauseDeferrals
|
-12000000 | USD |
CY2012 | por |
Renewable Adjustment Clause Deferrals
RenewableAdjustmentClauseDeferrals
|
1000000 | USD |
CY2011 | por |
Renewable Adjustment Clause Deferrals
RenewableAdjustmentClauseDeferrals
|
22000000 | USD |
CY2011 | por |
Senate Bill408 Deferrals Net
SenateBill408DeferralsNet
|
7000000 | USD |
CY2010 | por |
Senate Bill408 Deferrals Net
SenateBill408DeferralsNet
|
13000000 | USD |
CY2012Q4 | por |
Service Area Population
ServiceAreaPopulation
|
1700000 | shares |
CY2012Q4 | por |
Service Area Sq Miles
ServiceAreaSqMiles
|
4000 | sqmi |
CY2011 | por |
Short Term Debt Maximum Amount Outstanding During Year
ShortTermDebtMaximumAmountOutstandingDuringYear
|
44000000 | USD |
CY2012 | por |
Short Term Debt Maximum Amount Outstanding During Year
ShortTermDebtMaximumAmountOutstandingDuringYear
|
44000000 | USD |
CY2010 | por |
Short Term Debt Maximum Amount Outstanding During Year
ShortTermDebtMaximumAmountOutstandingDuringYear
|
51000000 | USD |
CY2011 | por |
Stock Based Compensation Attainment Of Performance Goals That Allows Vesting
StockBasedCompensationAttainmentOfPerformanceGoalsThatAllowsVesting
|
1.150 | |
CY2012 | por |
Stock Based Compensation Attainment Of Performance Goals That Allows Vesting
StockBasedCompensationAttainmentOfPerformanceGoalsThatAllowsVesting
|
1.116 | |
CY2010 | por |
Stock Based Compensation Attainment Of Performance Goals That Allows Vesting
StockBasedCompensationAttainmentOfPerformanceGoalsThatAllowsVesting
|
1.148 | |
CY2012 | por |
Stock Based Compensation Forfeiture Rate
StockBasedCompensationForfeitureRate
|
0.05 | |
CY2012 | por |
Stock Based Compensation Impact On Cash Flows
StockBasedCompensationImpactOnCashFlows
|
0 | USD |
CY2011 | por |
Stock Based Compensation Impact On Cash Flows
StockBasedCompensationImpactOnCashFlows
|
0 | USD |
CY2010 | por |
Stock Based Compensation Impact On Cash Flows
StockBasedCompensationImpactOnCashFlows
|
0 | USD |
CY2012Q4 | por |
Tax Credit Carryforward Federal
TaxCreditCarryforwardFederal
|
41000000 | USD |
CY2012Q4 | por |
Tax Credit Carryforward State
TaxCreditCarryforwardState
|
14000000 | USD |
CY2012Q4 | por |
Trojan Decommissioning Activities
TrojanDecommissioningActivities
|
42000000 | USD |
CY2011Q4 | por |
Trojan Decommissioning Activities
TrojanDecommissioningActivities
|
37000000 | USD |
CY2011Q4 | por |
Unbilled Revenue
UnbilledRevenue
|
101000000 | USD |
CY2012Q4 | por |
Unbilled Revenue
UnbilledRevenue
|
97000000 | USD |
CY2012Q4 | por |
Upper Estimated Range Of Total Cost Of Portland Harbor Cleanup
UpperEstimatedRangeOfTotalCostOfPortlandHarborCleanup
|
1800000000 | USD |
CY2012Q4 | por |
Variable Interest Entity Consolidated Carrying Amount Cash And Cash Equivalents
VariableInterestEntityConsolidatedCarryingAmountCashAndCashEquivalents
|
1000000 | USD |
CY2011Q4 | por |
Variable Interest Entity Consolidated Carrying Amount Cash And Cash Equivalents
VariableInterestEntityConsolidatedCarryingAmountCashAndCashEquivalents
|
1000000 | USD |
CY2012 | dei |
Entity Current Reporting Status
EntityCurrentReportingStatus
|
Yes | |
CY2012 | dei |
Entity Filer Category
EntityFilerCategory
|
Large Accelerated Filer | |
CY2012Q4 | dei |
Entity Number Of Employees
EntityNumberOfEmployees
|
2603 | shares |
CY2012Q2 | dei |
Entity Public Float
EntityPublicFloat
|
2008462492 | USD |
CY2012 | dei |
Entity Registrant Name
EntityRegistrantName
|
PORTLAND GENERAL ELECTRIC CO /OR/ | |
CY2012 | dei |
Document Type
DocumentType
|
10-K | |
CY2012 | dei |
Entity Central Index Key
EntityCentralIndexKey
|
0000784977 | |
CY2013Q1 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
75557037 | shares |
CY2012Q4 | por |
Variable Interest Entity Consolidated Carrying Amount Electric Utility Plant Net
VariableInterestEntityConsolidatedCarryingAmountElectricUtilityPlantNet
|
5000000 | USD |
CY2011Q4 | por |
Variable Interest Entity Consolidated Carrying Amount Electric Utility Plant Net
VariableInterestEntityConsolidatedCarryingAmountElectricUtilityPlantNet
|
5000000 | USD |
CY2012 | por |
Variable Interest Entity Discount Rate Used In Impairment Calc
VariableInterestEntityDiscountRateUsedInImpairmentCalc
|
0.07 | |
CY2012Q4 | por |
Volume Related To Derivative Instruments At Balance Sheet Date Commodity Contracts Natural Gas
VolumeRelatedToDerivativeInstrumentsAtBalanceSheetDateCommodityContractsNaturalGas
|
86000000 | MMBTU |
CY2011Q4 | por |
Volume Related To Derivative Instruments At Balance Sheet Date Commodity Contracts Natural Gas
VolumeRelatedToDerivativeInstrumentsAtBalanceSheetDateCommodityContractsNaturalGas
|
79000000 | MMBTU |
CY2012Q4 | por |
Volume Related To Derivative Instruments Held At Balance Sheet Date Commodity Contracts Electricity
VolumeRelatedToDerivativeInstrumentsHeldAtBalanceSheetDateCommodityContractsElectricity
|
11000000 | MWh |
CY2011Q4 | por |
Volume Related To Derivative Instruments Held At Balance Sheet Date Commodity Contracts Electricity
VolumeRelatedToDerivativeInstrumentsHeldAtBalanceSheetDateCommodityContractsElectricity
|
13000000 | MWh |
CY2012Q4 | por |
Volume Related To Derivative Instruments Held At Balance Sheet Date Foreign Currency
VolumeRelatedToDerivativeInstrumentsHeldAtBalanceSheetDateForeignCurrency
|
7000000 | CAD |
CY2011Q4 | por |
Volume Related To Derivative Instruments Held At Balance Sheet Date Foreign Currency
VolumeRelatedToDerivativeInstrumentsHeldAtBalanceSheetDateForeignCurrency
|
6000000 | CAD |
CY2012 | dei |
Amendment Flag
AmendmentFlag
|
false | |
CY2012 | dei |
Current Fiscal Year End Date
CurrentFiscalYearEndDate
|
--12-31 | |
CY2012 | dei |
Document Fiscal Period Focus
DocumentFiscalPeriodFocus
|
FY | |
CY2012 | dei |
Document Fiscal Year Focus
DocumentFiscalYearFocus
|
2012 | |
CY2012 | dei |
Document Period End Date
DocumentPeriodEndDate
|
2012-12-31 | |
CY2012 | dei |
Entity Voluntary Filers
EntityVoluntaryFilers
|
No | |
CY2012 | dei |
Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
|
Yes | |
CY2012 | dei |
Trading Symbol
TradingSymbol
|
POR |