Condensed Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash Flows from Operating Activities
Net income	$ 501	$ 574
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and decommissioning	1,095	1,019
Allowance for equity funds used during construction	(46)	(52)
Deferred income taxes and tax credits, net	51	346
Other	139	157
Effect of changes in operating assets and liabilities:
Accounts receivable	(30)	(22)
Inventories	(7)	(31)
Accounts payable	(101)	28
Income taxes receivable/payable	(39)	(143)
Other current assets and liabilities	94	(367)
Regulatory assets, liabilities, and balancing accounts, net	(311)	(192)
Other noncurrent assets and liabilities	(66)	142
Net cash provided by operating activities	1,280	1,459
Cash Flows from Investing Activities
Capital expenditures	(2,320)	(2,521)
Decrease in restricted cash	2	25
Proceeds from sales and maturities of nuclear decommissioning trust investments	877	795
Purchases of nuclear decommissioning trust investments	(873)	(786)
Other	21	16
Net cash used in investing activities	(2,293)	(2,471)
Cash Flows from Financing Activities
Borrowings (repayments) under revolving credit facilities	(260)	140
Net issuances of commercial paper, net of discount of $1 at respective dates	237	321
Proceeds from issuance of short-term debt, net of issuance costs	300	0
Proceeds from issuance of long-term debt, net of premium, discount, and issuance costs of $14 and $8 for PG&E Corporation and $11 and $8 for the Utility, at respective dates	1,236	742
Repayments of long-term debt	(889)	(461)
Common stock issued	589	562
Common stock dividends paid	(408)	(386)
Other	44	(26)
Net cash provided by financing activities	849	892
Net change in cash and cash equivalents	(164)	(120)
Cash and cash equivalents at January 1	296	401
Cash and cash equivalents at June 30	132	281
Cash received (paid) for:
Interest, net of amounts capitalized	(318)	(312)
Income taxes, net	(1)	(65)
Supplemental disclosures of noncash investing and financing activities
Common stock dividends declared but not yet paid	215	202
Capital expenditures financed through accounts payable	224	253
Noncash common stock issuances	10	11
Terminated capital leases	68	0
Pacific Gas And Electric Company [Member]
Cash Flows from Operating Activities
Net income	478	566
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and decommissioning	1,094	1,019
Allowance for equity funds used during construction	(46)	(52)
Deferred income taxes and tax credits, net	18	337
Other	108	126
Effect of changes in operating assets and liabilities:
Accounts receivable	(31)	(24)
Inventories	(7)	(31)
Accounts payable	(72)	68
Income taxes receivable/payable	(35)	(162)
Other current assets and liabilities	141	(317)
Regulatory assets, liabilities, and balancing accounts, net	(311)	(192)
Other noncurrent assets and liabilities	(76)	126
Net cash provided by operating activities	1,261	1,464
Cash Flows from Investing Activities
Capital expenditures	(2,320)	(2,521)
Decrease in restricted cash	2	25
Proceeds from sales and maturities of nuclear decommissioning trust investments	877	795
Purchases of nuclear decommissioning trust investments	(873)	(786)
Other	17	8
Net cash used in investing activities	(2,297)	(2,479)
Cash Flows from Financing Activities
Net issuances of commercial paper, net of discount of $1 at respective dates	125	321
Proceeds from issuance of short-term debt, net of issuance costs	300	0
Proceeds from issuance of long-term debt, net of premium, discount, and issuance costs of $14 and $8 for PG&E Corporation and $11 and $8 for the Utility, at respective dates	889	742
Repayments of long-term debt	(539)	(461)
Preferred stock dividends paid	(7)	(7)
Common stock dividends paid	(358)	(358)
Equity contribution	580	665
Other	51	(20)
Net cash provided by financing activities	1,041	882
Net change in cash and cash equivalents	5	(133)
Cash and cash equivalents at January 1	65	194
Cash and cash equivalents at June 30	70	61
Cash received (paid) for:
Interest, net of amounts capitalized	(307)	(300)
Income taxes, net	(1)	(86)
Supplemental disclosures of noncash investing and financing activities
Capital expenditures financed through accounts payable	224	253
Terminated capital leases	$ 68	$ 0