Debt (Schedule Of Line Of Credit) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Apr. 27, 2015
Pacific Gas And Electric Company [Member]
Debt [Line Items]
Expiration date for credit agreement	Apr. 01, 2019
Letters of Credit Sublimit	$ 1,000
Swingline Loans Sublimit	300
Commercial Paper Sublimit	1,750
Swingline Loan Repay Term	7 days
Utility [Member]
Debt [Line Items]
Facility limit	3,000	[1]
Letters Of Credit Outstanding Amount	33
Commercial Paper	556
Facility Availability	2,411
P G E Corporation [Member]
Debt [Line Items]
Expiration date for credit agreement	Apr. 01, 2019
Facility limit	300	[2]
Letters Of Credit Outstanding Amount	0
Commercial Paper	0
Facility Availability	300
Letters of Credit Sublimit	100
Swingline Loans Sublimit	100
Commercial Paper Sublimit	300
Swingline Loan Repay Term	7 days
Credit Facilities [Member]
Debt [Line Items]
Facility limit	3,300
Letters Of Credit Outstanding Amount	33
Commercial Paper	556
Facility Availability	2,711
Credit Facilities [Member] | Pacific Gas And Electric Company [Member]
Debt [Line Items]
Letters of Credit Sublimit	100
Swingline Loans Sublimit	300
Credit Facilities [Member] | P G E Corporation [Member]
Debt [Line Items]
Letters of Credit Sublimit	100
Minimum [Member] | Pacific Gas And Electric Company [Member]
Debt [Line Items]
Line Of Credit Facility Margin Interest Rate LIBOR Loans	0.80%
Line Of Credit Facility Margin Interest Rate Base Rate Loans	0.00%
Line Of Credit Facility Commitment Fee Percentage	0.075%
Minimum [Member] | P G E Corporation [Member]
Debt [Line Items]
Line Of Credit Facility Margin Interest Rate LIBOR Loans	0.90%
Line Of Credit Facility Margin Interest Rate Base Rate Loans	0.00%
Line Of Credit Facility Commitment Fee Percentage	0.10%
Maximum [Member] | Pacific Gas And Electric Company [Member]
Debt [Line Items]
Line Of Credit Facility Margin Interest Rate LIBOR Loans	1.275%
Line Of Credit Facility Margin Interest Rate Base Rate Loans	0.275%
Line Of Credit Facility Commitment Fee Percentage	0.225%
Maximum [Member] | P G E Corporation [Member]
Debt [Line Items]
Line Of Credit Facility Margin Interest Rate LIBOR Loans	1.475%
Line Of Credit Facility Margin Interest Rate Base Rate Loans	0.475%
Line Of Credit Facility Commitment Fee Percentage	0.275%
April 27, 2015 Amended Credit Facility [Member]
Debt [Line Items]
Line Of Credit Facility Interest Rate Description	Borrowings under each amended and restated credit agreement (other than swing line loans) will bear interest based, at each borrower’s election, on (1) a London Interbank Offered Rate (“LIBOR”) plus an applicable margin or (2) the base rate plus an applicable margin. The base rate will equal the higher of the following: the administrative agent’s announced base rate, 0.5% above the overnight federal funds rate, and the one-month LIBOR plus an applicable margin.
April 27, 2015 Amended Credit Facility [Member] | Pacific Gas And Electric Company [Member]
Debt [Line Items]
Expiration date for credit agreement	Apr. 01, 2020
Facility limit			3,000
Letters of Credit Sublimit	500
Swingline Loans Sublimit	75
April 27, 2015 Amended Credit Facility [Member] | P G E Corporation [Member]
Debt [Line Items]
Expiration date for credit agreement	Apr. 01, 2020
Facility limit			300
Letters of Credit Sublimit	$ 50

[1] Includes a $1.0 billion sublimit for letters of credit and a $300 million commitment for swingline loans.

[2] Includes a $100 million sublimit for letters of credit and a $100 million commitment for swingline loans defined as loans that are made available on a same-day basis and are repayable in full within 7 days.