Schedule I - Condensed Financial Information Of Parent (Schedule Of Condensed Statement Of Cash Flows) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net income		$ 888	$ 1,450	$ 828
Deferred income taxes and tax credits, net		693	690	1,075
Net cash provided by operating activities		3,753	3,677	3,427
Other		22	114	56
Net cash used in investing activities		(5,211)	(4,714)	(5,107)
Borrowings under revolving credit facilities		0	(260)	140
Proceeds from issuance of long-term debt, net of discount and issuance costs of $3 in 2014		1,123	2,308	1,532
Long-Term Debt Repurchased		0	889	861
Common stock issued		780	802	1,045
Common stock dividends paid		(856)	(828)	(782)
Other		0	42	(41)
Net cash (used) in financing activities		1,430	892	1,575
Net change in cash and cash equivalents		(28)	(145)	(105)
Cash and cash equivalents at January 1		151	296	401
Cash and cash equivalents at December 31		123	151	296
Cash received (paid) for:
Interest, net of amounts capitalized		(684)	(633)	(623)
Income taxes, net		77	501	(41)
Noncash common stock issuances		(21)	(21)	(22)
Common stock dividends declared but not yet paid		(224)	(217)	(208)
PG&E Corporation [Member]
Net income		874	1,436	814
Depreciation and amortization		66	65	54
Equity in earnings of subsidiaries		(852)	(1,413)	(848)
Deferred income taxes and tax credits, net		10	(72)	(10)
Noncurrent income taxes receivable/payable		0	5	0
Current income taxes receivable/payable		5	(16)	20
Other		(70)	43	(20)
Net cash provided by operating activities		33	48	10
Investment in subsidiaries		(705)	(978)	(1,371)
Dividends received from subsidiaries	[1]	716	716	716
Proceeds from tax equity investments		0	368	275
Other		0	0	(8)
Net cash used in investing activities		11	106	(388)
Borrowings under revolving credit facilities		0	(260)	140
Proceeds from issuance of long-term debt, net of discount and issuance costs of $3 in 2014		0	347	0
Long-Term Debt Repurchased		0	(350)	0
Common stock issued		780	802	1,045
Common stock dividends paid	[2]	(856)	(828)	(782)
Other		0	0	(1)
Net cash (used) in financing activities		(76)	(289)	402
Net change in cash and cash equivalents		(32)	(135)	24
Cash and cash equivalents at January 1		96	231	207
Cash and cash equivalents at December 31		64	96	231
Cash received (paid) for:
Interest, net of amounts capitalized		(9)	(15)	(23)
Income taxes, net		0	1	21
Noncash common stock issuances		21	21	22
Common stock dividends declared but not yet paid		$ 224	$ 217	$ 208

[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 2015, 2014, and 2013, respectively, PG&E Corporation paid quarterly common stock dividends of $0.455 per share.