Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Current Assets
Cash and cash equivalents	$ 123	$ 151
Restricted cash	234	298
Accounts receivable
Customers (net of allowance for doubtful accounts of $54 and $66 at respective dates)	1,106	960
Accrued unbilled revenue	855	776
Regulatory balancing accounts	1,760	2,266
Other	286	377
Regulatory assets	517	444
Inventories
Gas stored underground and fuel oil	126	172
Materials and supplies	313	304
Income taxes receivable	155	198
Other	347	443
Total current assets	5,822	6,389
Property, Plant, and Equipment
Electric	48,532	45,162
Gas	16,749	15,678
Construction work in progress	2,059	2,220
Other	2	2
Total property, plant, and equipment	67,342	63,062
Accumulated depreciation	(20,619)	(19,121)
Net property, plant, and equipment	46,723	43,941
Other Noncurrent Assets
Regulatory assets	7,029	6,322
Nuclear decommissioning trusts	2,470	2,421
Income taxes receivable	135	91
Other	1,160	963
Total other noncurrent assets	10,794	9,797
TOTAL ASSETS	63,339	60,127
Current Liabilities
Short-term borrowings	1,019	633
Long-term debt, classified as current	160	0
Accounts payable
Trade creditors	1,414	1,244
Regulatory balancing accounts	715	1,090
Other	398	476
Disputed claims and customer refunds	454	434
Interest payable	206	197
Other	1,997	1,846
Total current liabilities	6,363	5,920
Noncurrent Liabilities
Long-term debt	16,030	15,050
Regulatory liabilities	6,321	6,290
Pension and other postretirement benefits	2,622	2,561
Asset retirement obligations	3,643	3,575
Deferred income taxes	9,206	8,513
Other	2,326	2,218
Total noncurrent liabilities	$ 40,148	$ 38,207
Commitments and Contingencies (Note 13)
Shareholders' Equity
Common stock	$ 11,282	$ 10,421
Reinvested earnings	5,301	5,316
Accumulated other comprehensive(loss)income	(7)	11
Total shareholders' equity	16,576	15,748
Noncontrolling Interest - Preferred Stock of Subsidiary	252	252
Total equity	16,828	16,000
TOTAL LIABILITIES AND EQUITY	63,339	60,127
Pacific Gas And Electric Company [Member]
Current Assets
Cash and cash equivalents	59	55
Restricted cash	234	298
Accounts receivable
Customers (net of allowance for doubtful accounts of $54 and $66 at respective dates)	1,106	960
Accrued unbilled revenue	855	776
Regulatory balancing accounts	1,760	2,266
Other	284	375
Regulatory assets	517	444
Inventories
Gas stored underground and fuel oil	126	172
Materials and supplies	313	304
Income taxes receivable	130	168
Other	346	409
Total current assets	5,730	6,227
Property, Plant, and Equipment
Electric	48,532	45,162
Gas	16,749	15,678
Construction work in progress	2,059	2,220
Total property, plant, and equipment	67,340	63,060
Accumulated depreciation	(20,617)	(19,120)
Net property, plant, and equipment	46,723	43,940
Other Noncurrent Assets
Regulatory assets	7,029	6,322
Nuclear decommissioning trusts	2,470	2,421
Income taxes receivable	135	91
Other	1,053	864
Total other noncurrent assets	10,687	9,698
TOTAL ASSETS	63,140	59,865
Current Liabilities
Short-term borrowings	1,019	633
Long-term debt, classified as current	160	0
Accounts payable
Trade creditors	1,414	1,243
Regulatory balancing accounts	715	1,090
Other	418	444
Disputed claims and customer refunds	454	434
Interest payable	203	195
Other	1,750	1,604
Total current liabilities	6,133	5,643
Noncurrent Liabilities
Long-term debt	15,680	14,700
Regulatory liabilities	6,321	6,290
Pension and other postretirement benefits	2,534	2,477
Asset retirement obligations	3,643	3,575
Deferred income taxes	9,487	8,773
Other	2,282	2,178
Total noncurrent liabilities	$ 39,947	$ 37,993
Commitments and Contingencies (Note 13)
Shareholders' Equity
Preferred stock	$ 258	$ 258
Common stock	1,322	1,322
Additional paid-in capital	7,215	6,514
Reinvested earnings	8,262	8,130
Accumulated other comprehensive(loss)income	3	5
Total shareholders' equity	17,060	16,229
TOTAL LIABILITIES AND EQUITY	$ 63,140	$ 59,865