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v3.3.0.814

Changes In Capitalization (Detail) | 9 Months Ended
--- | ---
Sep. 30, 2015 USD ($)
Power [Member] |
Debt Instrument [Line Items] |
Cash dividends paid to parent company | $ 400,000,000
Medium Term Notes Three Point Zero Percent Due In Two Thousand Twenty Five [Member] | PSE And G [Member] |
Debt Instrument [Line Items] |
Issued long-term debt | $ 350,000,000
Stated interest rate of debt instrument | 3.00%
Medium Term Notes Four Point Zero Five Percent due Two Thousand Forty Five [Member] | PSE And G [Member] |
Debt Instrument [Line Items] |
Issued long-term debt | $ 250,000,000
Stated interest rate of debt instrument | 4.05%
Medium Term Notes Two Point Seven Zero Percentage Due On Two Thousand Fifteen [Member] | PSE And G [Member] |
Debt Instrument [Line Items] |
Stated interest rate of debt instrument | 2.70%
Repayments of long-term debt | $ 300,000,000
Securitization Debt [Member] | PSE And G [Member] |
Debt Instrument [Line Items] |
Repayments of long-term debt | 183,000,000
Transition Fundings Ii Securitization Debt [Member] | PSE And G [Member] |
Debt Instrument [Line Items] |
Repayments of long-term debt | $ 8,000,000

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