Condensed Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash Flows from Operating Activities
Net income	$ 230	$ 242
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and decommissioning	538	503
Allowance for equity funds used during construction	(22)	(26)
Deferred income taxes and tax credits, net	15	166
Other	56	57
Effect of changes in operating assets and liabilities:
Accounts receivable	321	209
Inventories	62	55
Accounts payable	31	(56)
Income taxes receivable/payable	(28)	49
Other current assets and liabilities	(37)	(242)
Regulatory assets, liabilities, and balancing accounts, net	(376)	(133)
Other noncurrent assets and liabilities	(19)	45
Net cash provided by operating activities	771	869
Cash Flows from Investing Activities
Capital expenditures	(1,197)	(1,249)
Decrease in restricted cash	2	26
Proceeds from sales and maturities of nuclear decommissioning trust investments	530	363
Purchases of nuclear decommissioning trust investments	(536)	(364)
Other	12	17
Net cash used in investing activities	(1,189)	(1,207)
Cash Flows from Financing Activities
Repayments under revolving credit facilities	(260)	0
Net issuances (repayments) of commercial paper, net of discount of $1 in 2014	15	(2)
Proceeds from issuance of long-term debt, net of premium, discount, and issuance costs of $13 for PG&E Corporation and $10 for the Utility in 2014	1,237	0
Repayments of long-term debt	(889)	0
Common stock issued	302	426
Common stock dividends paid	(202)	(191)
Other	27	(18)
Net cash provided by financing activities	230	215
Net change in cash and cash equivalents	(188)	(123)
Cash and cash equivalents at January 1	296	401
Cash and cash equivalents at March 31	108	278
Cash received (paid) for:
Interest, net of amounts capitalized	(199)	(197)
Income taxes, net	1	36
Supplemental disclosures of noncash investing and financing activities
Common stock dividends declared but not yet paid	213	201
Capital expenditures financed through accounts payable	171	257
Noncash common stock issuances	5	6
Pacific Gas And Electric Company [Member]
Cash Flows from Operating Activities
Net income	228	237
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and decommissioning	538	503
Allowance for equity funds used during construction	(22)	(26)
Deferred income taxes and tax credits, net	(19)	163
Other	39	37
Effect of changes in operating assets and liabilities:
Accounts receivable	312	203
Inventories	62	55
Accounts payable	53	2
Income taxes receivable/payable	(25)	51
Other current assets and liabilities	26	(230)
Regulatory assets, liabilities, and balancing accounts, net	(376)	(133)
Other noncurrent assets and liabilities	(37)	45
Net cash provided by operating activities	779	907
Cash Flows from Investing Activities
Capital expenditures	(1,197)	(1,249)
Decrease in restricted cash	2	26
Proceeds from sales and maturities of nuclear decommissioning trust investments	530	363
Purchases of nuclear decommissioning trust investments	(536)	(364)
Other	9	5
Net cash used in investing activities	(1,192)	(1,219)
Cash Flows from Financing Activities
Net issuances (repayments) of commercial paper, net of discount of $1 in 2014	(33)	(2)
Proceeds from issuance of long-term debt, net of premium, discount, and issuance costs of $13 for PG&E Corporation and $10 for the Utility in 2014	890	0
Repayments of long-term debt	(539)	0
Preferred stock dividends paid	(3)	(3)
Common stock dividends paid	(179)	(179)
Equity contribution	250	370
Other	30	(15)
Net cash provided by financing activities	416	171
Net change in cash and cash equivalents	3	(141)
Cash and cash equivalents at January 1	65	194
Cash and cash equivalents at March 31	68	53
Cash received (paid) for:
Interest, net of amounts capitalized	(188)	(197)
Income taxes, net	1	36
Supplemental disclosures of noncash investing and financing activities
Capital expenditures financed through accounts payable	$ 171	$ 257