Schedule I - Condensed Financial Information Of Parent (Schedule Of Condensed Statement Of Cash Flows) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net income		$ 1,407	$ 888	$ 1,450
Deferred income taxes and tax credits, net		1,030	693	690
Net cash provided by operating activities		4,409	3,780	3,690
Other		13	22	114
Net cash used in investing activities		(5,526)	(5,211)	(4,714)
Borrowings under revolving credit facilities		0	0	(260)
Proceeds from issuance of long-term debt, net of discount and issuance costs of $3 in 2014		983	1,123	2,308
Repayments of long-term debt		160	0	889
Common stock issued		822	780	802
Common stock dividends paid		(921)	(856)	(828)
Other		(44)	(27)	29
Net cash (used) in financing activities		1,171	1,403	879
Net change in cash and cash equivalents		54	(28)	(145)
Cash and cash equivalents at January 1		123	151	296
Cash and cash equivalents at December 31		177	123	151
Proceeds from issuance of long-term debt, net of premium, discount, and issuance costs		17	27	17
Cash received (paid) for:
Interest, net of amounts capitalized		(726)	(684)	(633)
Income taxes, net		231	77	501
Noncash common stock issuances		(20)	(21)	(21)
Common stock dividends declared but not yet paid		(248)	(224)	(217)
PG&E Corporation [Member]
Net income		1,393	874	1,436
Stock-based compensation amortization		74	66	65
Equity in earnings of subsidiaries		(1,388)	(852)	(1,413)
Deferred income taxes and tax credits, net		11	10	(72)
Noncurrent income taxes receivable/payable		0	0	5
Current income taxes receivable/payable		(1)	5	(16)
Other		(24)	(70)	43
Net cash provided by operating activities		65	33	48
Investment in subsidiaries		(835)	(705)	(978)
Dividends received from subsidiaries	[1]	911	716	716
Proceeds from tax equity investments		0	0	368
Other		0	0	0
Net cash used in investing activities		76	11	106
Borrowings under revolving credit facilities		0	0	(260)
Proceeds from issuance of long-term debt, net of discount and issuance costs of $3 in 2014		0	0	347
Repayments of long-term debt		0	0	(350)
Common stock issued		822	780	802
Common stock dividends paid	[2]	(921)	(856)	(828)
Net cash (used) in financing activities		(99)	(76)	(289)
Net change in cash and cash equivalents		42	(32)	(135)
Cash and cash equivalents at January 1		64	96	231
Cash and cash equivalents at December 31		106	64	96
Cash received (paid) for:
Interest, net of amounts capitalized		(9)	(9)	(15)
Income taxes, net		(13)	0	1
Noncash common stock issuances		20	21	21
Common stock dividends declared but not yet paid		$ 248	$ 224	$ 217

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

[2] In January of 2016, PG&E Corporation paid a quarterly common stock dividend of $0.455 per share. In April, July and October of 2016, respectively, PG&E Corporation paid quarterly common stock dividends of $0.49 per share. In January, April, July, and October of 2015 and 2014, respectively, PG&E Corporation paid quarterly common stock dividends of $0.455 per share.