Commitments And Contingencies (Legal And Regulatory Contingencies) (Detail) (USD $)	3 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
Criminal investigation [Member]
Loss Contingencies [Line Items]
Statutory penalty for each count of alleged violation	$ 500,000
Total maximum statutory penalties	14,000,000
PGE Corporation And Utility [Member]
Loss Contingencies [Line Items]
Accrued legal liabilities	35,000,000	43,000,000
Probable penalty amount	200,000,000	200,000,000
Unrecognized Tax Benefits	370,000,000
Utility [Member]
Loss Contingencies [Line Items]
Number of self-reports filed with the CPUC	65
Disallowed capital expenditures		196,000,000	353,000,000
Number of CPUC investigative enforcement proceedings	3
Amount of capitalized PSEP costs included in Property, Plant, and Equipment	400,000,000
Capitalized PSEP costs	766,000,000
Penalties recommended by various parties	2,250,000,000
Reduction to expense funding	23,000,000
Utility [Member] | State General Fund [Member]
Loss Contingencies [Line Items]
SED recommended penalty	300,000,000
Utility [Member] | Criminal investigation [Member] | Original Indictment [Member]
Loss Contingencies [Line Items]
Number of felony counts	12
Utility [Member] | Criminal investigation [Member] | Superceding Indictment [Member]
Loss Contingencies [Line Items]
Number of felony counts	15
Gross Gain Derived From Alleged Violation	281,000,000
Gross Loss Derived From Alleged Violation	565,000,000
Maximum Alternative Fine Sought	1,130,000,000
Utility [Member] | Criminal investigation [Member] | Alleged obstruction of NTSB's investigation [Member]
Loss Contingencies [Line Items]
Number of felony counts	1
Utility [Member] | Minimum [Member]
Loss Contingencies [Line Items]
SED fines for self-reported violations	50,000
Utility [Member] | Maximum [Member]
Loss Contingencies [Line Items]
SED fines for self-reported violations	16,800,000
Utility [Member] | Non-recoverable costs [Member]
Loss Contingencies [Line Items]
SED recommended penalty	$ 1,950,000,000