Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Pacific Gas And Electric Company [Member]
Customer advances for construction	$ 88		$ 90
Reserve for damages	137		161
Environmental reserve	111		152
Compensation	36		102
Net operating loss carryforward	946		670
GHG Allowances	56		108
Other	100		128
Total deferred income tax assets	1,474		1,411
Regulatory balancing accounts	512		261
Property related basis differences	8,666		8,038
Income tax regulatory asset	974	[1]	748	[1]
Other	86		86
Total deferred income tax liabilities	10,238		9,133
Total net deferred income tax liabilities	8,764		7,722
Included in current liabilities (assets)	(9)		(320)
Included in noncurrent liabilities	8,773		8,042
Pg E Corporation [Member]
Customer advances for construction	88		90
Reserve for damages	137		161
Environmental reserve	111		152
Compensation	107		167
Net operating loss carryforward	1,177		890
GHG Allowances	56		108
Other	74		135
Total deferred income tax assets	1,750		1,703
Regulatory balancing accounts	512		261
Property related basis differences	8,683		8,048
Income tax regulatory asset	974	[1]	748	[1]
Other	88		151
Total deferred income tax liabilities	10,257		9,208
Total net deferred income tax liabilities	8,507		7,505
Included in current liabilities (assets)	(6)		(318)
Included in noncurrent liabilities	$ 8,513		$ 7,823

[1] Represents the deferred income tax component of the cumulative differences between amounts recognized for ratemaking purposes and amounts recognized in accordance with GAAP. (See Note 3 above.)