Schedule I - Condensed Financial Information Of Parent (Schedule Of Condensed Statement Of Cash Flows) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Net income	$ 1,450		$ 828		$ 830
Deferred income taxes and tax credits, net	690		1,075		648
Net cash provided by operating activities	3,677		3,427		4,882
Other	114		56		104
Net cash provided by (used in) investing activities	(4,714)		(5,107)		(4,526)
Borrowings under revolving credit facilities	0		140		120
Repayments under revolving credit facilities	(260)		0		0
Proceeds from issuance of long-term debt, net of discount and issuance costs of $3 in 2014	2,308		1,532		1,137
Long-Term Debt Repurchased	889		861		50
Common stock issued	802		1,045		751
Common stock dividends paid	(828)		(782)		(746)
Other	42		(41)		14
Net cash (used) in financing activities	892		1,575		(468)
Net change in cash and cash equivalents	(145)		(105)		(112)
Cash and cash equivalents at January 1	296		401		513
Cash and cash equivalents at December 31	151		296		401
Proceeds from issuance of long-term debt, net of premium, discount, and issuance costs	17		18		13
Cash received (paid) for:
Interest, net of amounts capitalized	(633)		(623)		(594)
Income taxes, net	501		(41)		114
Noncash common stock issuances	(21)		(22)		(22)
Common stock dividends declared but not yet paid	(217)		208		196
PG&E Corporation [Member]
Net income	1,436		814		816
Depreciation and amortization	65		54		51
Equity in earnings of subsidiaries	(1,413)		(848)		(817)
Deferred income taxes and tax credits, net	(72)		(10)		(31)
Noncurrent income taxes receivable/payable	5		0		(6)
Current income taxes receivable/payable	(16)		20		(82)
Other	43		(20)		20
Net cash provided by operating activities	48		10		(49)
Investment in subsidiaries	(978)	[1]	(1,371)	[1]	(1,023)	[1]
Dividends received from subsidiaries	716		716		716
Proceeds from tax equity investments	368		275		228
Other	0		(8)		0
Net cash provided by (used in) investing activities	106		(388)		(79)
Borrowings under revolving credit facilities	0		140		120
Repayments under revolving credit facilities	(260)		0		0
Proceeds from issuance of long-term debt, net of discount and issuance costs of $3 in 2014	347		0		0
Long-Term Debt Repurchased	(350)		0		0
Common stock issued	802		1,045		751
Common stock dividends paid	828	[2]	(782)	[2]	(746)	[2]
Other	0		(1)		1
Net cash (used) in financing activities	(289)		402		126
Net change in cash and cash equivalents	(135)		24		(2)
Cash and cash equivalents at January 1	207		207		209
Cash and cash equivalents at December 31	231		207		207
Cash received (paid) for:
Interest, net of amounts capitalized	(15)		(23)		(20)
Income taxes, net	1		21		(60)
Noncash common stock issuances	21		22		22
Common stock dividends declared but not yet paid	$ 217		$ 208		$ 196

[1] Because of its nature as a holding company, PG&E Corporation classifies dividends received from subsidiaries an investing cash flow.

[2] In January, April, July, and October of 2014, 2013, and 2012, respectively, PG&E Corporation paid quarterly common stock dividends of $0.455 per share.