Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents	$ 132	$ 296
Restricted cash	299	301
Accounts receivable
Customers (net of allowance for doubtful accounts of $68 and $80 at respective dates)	1,009	1,091
Accrued unbilled revenue	870	766
Regulatory balancing accounts	1,745	1,124
Other	304	312
Regulatory assets	404	448
Inventories
Gas stored underground and fuel oil	141	137
Materials and supplies	320	317
Income taxes receivable	613	574
Other	360	611
Total current assets	6,197	5,977
Property, Plant, and Equipment
Electric	43,990	42,881
Gas	15,040	14,379
Construction work in progress	1,981	1,834
Other	2	2
Total property, plant, and equipment	61,013	59,096
Accumulated depreciation	(18,530)	(17,844)
Net property, plant, and equipment	42,483	41,252
Other Noncurrent Assets
Regulatory assets	4,821	4,913
Nuclear decommissioning trusts	2,428	2,342
Income taxes receivable	88	85
Other	1,008	1,036
Total other noncurrent assets	8,345	8,376
TOTAL ASSETS	57,025	55,605
Current Liabilities
Short-term borrowings	1,452	1,174
Long-term debt, classified as current	0	889
Accounts payable
Trade creditors	1,161	1,293
Disputed claims and customer refunds	86	154
Regulatory balancing accounts	1,069	1,008
Other	472	471
Interest payable	865	892
Other	1,544	1,612
Total current liabilities	6,649	7,493
Noncurrent Liabilities
Long-term debt	13,966	12,717
Regulatory liabilities	5,966	5,660
Pension and other postretirement benefits	1,578	1,601
Asset retirement obligations	3,561	3,539
Deferred income taxes	7,874	7,823
Other	2,151	2,178
Total noncurrent liabilities	35,096	33,518
Commitments and Contingencies (Note 10)
Shareholders' Equity
Common stock	10,176	9,550
Reinvested earnings	4,808	4,742
Accumulated other comprehensive income	44	50
Total shareholders' equity	15,028	14,342
Noncontrolling Interest - Preferred Stock of Subsidiary	252	252
Total equity	15,280	14,594
TOTAL LIABILITIES AND EQUITY	57,025	55,605
Pacific Gas And Electric Company [Member]
Current Assets
Cash and cash equivalents	70	65
Restricted cash	299	301
Accounts receivable
Customers (net of allowance for doubtful accounts of $68 and $80 at respective dates)	1,009	1,091
Accrued unbilled revenue	870	766
Regulatory balancing accounts	1,745	1,124
Other	306	313
Regulatory assets	404	448
Inventories
Gas stored underground and fuel oil	141	137
Materials and supplies	320	317
Income taxes receivable	598	563
Other	208	523
Total current assets	5,970	5,648
Property, Plant, and Equipment
Electric	43,990	42,881
Gas	15,040	14,379
Construction work in progress	1,981	1,834
Total property, plant, and equipment	61,011	59,094
Accumulated depreciation	(18,529)	(17,843)
Net property, plant, and equipment	42,482	41,251
Other Noncurrent Assets
Regulatory assets	4,821	4,913
Nuclear decommissioning trusts	2,428	2,342
Income taxes receivable	83	81
Other	824	814
Total other noncurrent assets	8,156	8,150
TOTAL ASSETS	56,608	55,049
Current Liabilities
Short-term borrowings	1,340	914
Long-term debt, classified as current	0	539
Accounts payable
Trade creditors	1,161	1,293
Disputed claims and customer refunds	86	154
Regulatory balancing accounts	1,069	1,008
Other	462	432
Interest payable	862	887
Other	1,285	1,382
Total current liabilities	6,265	6,609
Noncurrent Liabilities
Long-term debt	13,616	12,717
Regulatory liabilities	5,966	5,660
Pension and other postretirement benefits	1,505	1,530
Asset retirement obligations	3,561	3,539
Deferred income taxes	8,060	8,042
Other	2,106	2,111
Total noncurrent liabilities	34,814	33,599
Commitments and Contingencies (Note 10)
Shareholders' Equity
Preferred stock	258	258
Common stock	1,322	1,322
Additional paid-in capital	6,396	5,821
Reinvested earnings	7,540	7,427
Accumulated other comprehensive income	13	13
Total shareholders' equity	15,529	14,841
TOTAL LIABILITIES AND EQUITY	$ 56,608	$ 55,049