Commitments And Contingencies (Legal And Regulatory Contingencies) (Details) $ in Thousands		3 Months Ended	6 Months Ended		12 Months Ended
		Mar. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)		Dec. 31, 2014 USD ($)
Loss Contingencies [Line Items]
Accrued legal liabilities			$ 43,000		$ 55,000
Unrecognized Tax Benefits			370,000
Amount of capitalized PSEP costs included in Property, Plant, and Equipment			645,000
Payment To State General Fund		$ 100,000	100,000	[1]	200,000
Bill Credit to Natural Gas Customers			400,000
CPUC Remedial Measures	[2]		0
CPUC Disallowed Future Spending			850,000
Disallowed revenue for pipeline safety expenses	[3]		0
Total Penalty Decision fines and remedies recorded			628,000
Penalty Decision Cumulative Charges [Member]
Loss Contingencies [Line Items]
Payment To State General Fund	[1]		300,000
Bill Credit to Natural Gas Customers			400,000
CPUC Remedial Measures	[2]		20,000
Disallowed revenue for pipeline safety expenses	[3]		0
Total Penalty Decision fines and remedies recorded			848,000
Penalty Decision Anticipated Future Financial Impact [Member]
Loss Contingencies [Line Items]
Payment To State General Fund	[1]		0
Bill Credit to Natural Gas Customers			0
CPUC Remedial Measures	[2]		30,000
Disallowed revenue for pipeline safety expenses	[3]		161,000
Total Penalty Decision fines and remedies recorded			$ 752,000
Pacific Gas And Electric Company [Member] | Criminal investigation [Member] | Original Indictment [Member]
Loss Contingencies [Line Items]
Number of felony counts			12
Pacific Gas And Electric Company [Member] | Criminal investigation [Member] | Superceding Indictment [Member]
Loss Contingencies [Line Items]
Statutory penalty for each count of alleged violation			$ 500
Total maximum statutory penalties			$ 14,000
Number of felony counts			15
Gross Gain Derived From Alleged Violation			$ 281,000
Gross Loss Derived From Alleged Violation			565,000
Maximum Alternative Fine Sought			$ 1,130,000
Pacific Gas And Electric Company [Member] | Criminal investigation [Member] | Alleged obstruction of NTSB's investigation [Member]
Loss Contingencies [Line Items]
Number of felony counts			1
Pacific Gas And Electric Company [Member] | Minimum [Member]
Loss Contingencies [Line Items]
SED fines for self-reported violations			$ 50
Pacific Gas And Electric Company [Member] | Maximum [Member]
Loss Contingencies [Line Items]
SED fines for self-reported violations			16,800
Pacific Gas And Electric Company [Member] | CAISO And PX [Member]
Loss Contingencies [Line Items]
Disputed Claims Liability Balance					434,000
Other Receivables Disputed Claims					$ 291,000
Pacific Gas And Electric Company [Member] | Ex Parte Communications [Member]
Loss Contingencies [Line Items]
CPUC Imposed Fine			$ 1,050

[1] In March 2015, the Utility increased its accrual from $200 million at December 31, 2014 to $300 million.

[2] In the Penalty Decision, the CPUC estimates that the Utility would incur $50 million to comply with the other remedies in the Penalty Decision, including $30 million to reimburse the CPUC for the costs of future audits. Remedial costs are expensed as incurred. Other than the refund of CPUC audit costs, the majority of the remedies have been completed or are underway and the associated costs have already been incurred.

[3] These costs are being expensed as incurred. Future GT&S revenues will be reduced for these unrecovered expenses.