Debt (Schedule Of Line Of Credit) (Details) - USD ($) $ in Millions		3 Months Ended
		Jun. 30, 2015	Mar. 31, 2015
Pacific Gas And Electric Company [Member]
Debt [Line Items]
Expiration date for credit agreement		Apr. 27, 2020
Letters of Credit Sublimit		$ 500	$ 1,000
Swingline Loans Sublimit		75	300
Commercial Paper Sublimit		$ 2,500	1,750
Swingline Loan Repay Term		7 days
Utility [Member]
Debt [Line Items]
Facility limit	[1]	$ 3,000
Letters Of Credit Outstanding Amount		33
Commercial Paper		1,011
Facility Availability		$ 1,956
P G E Corporation [Member]
Debt [Line Items]
Expiration date for credit agreement		Apr. 27, 2020
Facility limit	[2]	$ 300
Letters Of Credit Outstanding Amount		0
Commercial Paper		5
Facility Availability		295
Letters of Credit Sublimit		50	$ 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		1,016
Facility Availability		$ 2,251

[1] Includes a $500 million sublimit for letters of credit and a $75 million commitment for swingline loans.

[2] Includes a $50 million sublimit for letters of credit and a $100 million commitment for loans that are made available on a same-day basis and are repayable in full within 7 days.