Schedule I - Condensed Financial Information Of Parent (Schedule Of Condensed Balance Sheet) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash and cash equivalents	$ 151	$ 296	$ 401	$ 513
Advances to affiliates	20	17
Income taxes receivable	198	574
Other Assets, Current	443	611
Total current assets	6,389	5,977
Equipment	63,062	59,096
Accumulated depreciation	(19,121)	(17,844)
Net property, plant, and equipment	43,941	41,252
Income taxes receivable	91	85
Other	963	1,036
TOTAL ASSETS	60,127	55,605
Short-term borrowings	633	1,174
Long-term debt, classified as current	0	889
Other	1,846	1,612
Total current liabilities	5,920	7,493
Long-term debt	15,050	12,717
Other	2,218	2,178
Total noncurrent liabilities	38,207	33,518
Common stock	10,421	9,550
Reinvested earnings	5,316	4,742
Accumulated other comprehensive income (loss)	11	50	(101)
Total shareholders' equity	15,748	14,342
TOTAL LIABILITIES AND EQUITY	60,127	55,605
PG&E Corporation [Member]
Long-term debt	350	0
PG&E Corporation [Member]
Cash and cash equivalents	231	207	207	209
Advances to affiliates	30	26
Income taxes receivable	13	33
Other Assets, Current	86	0
Total current assets	360	226
Equipment	2	1
Accumulated depreciation	(1)	(1)
Net property, plant, and equipment	1	0
Investments in subsidiaries	14,711	13,387
Other investments	110	102
Income taxes receivable	5	5
Deferred income taxes	188	178
Other	0	1
Total noncurrent assets	15,015	13,673
TOTAL ASSETS	15,375	13,939
Short-term borrowings	260	120
Long-term debt, classified as current	350	0
Accounts payable - related parties	66	48
Accounts payable - other	230	221
Total current liabilities	906	289
Long-term debt	0	349
Other	127	127
Total noncurrent liabilities	127	476
Common stock	9,550	8,428
Reinvested earnings	4,742	4,747
Accumulated other comprehensive income (loss)	50	(101)
Total shareholders' equity	14,342	13,074
TOTAL LIABILITIES AND EQUITY	$ 15,375	$ 13,939