Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 142	$ 123
Restricted cash	234	234
Accounts receivable
Customers (net of allowance for doubtful accounts of $55 and $54 at respective dates)	1,010	1,106
Accrued unbilled revenue	685	855
Regulatory balancing accounts	1,721	1,760
Other	328	286
Regulatory assets	504	517
Inventories
Gas stored underground and fuel oil	109	126
Materials and supplies	344	313
Income taxes receivable	230	155
Other	327	338
Total current assets	5,634	5,813
Property, Plant, and Equipment
Electric	49,974	48,532
Gas	16,982	16,749
Construction work in progress	2,148	2,059
Other	2	2
Total property, plant, and equipment	69,106	67,342
Accumulated depreciation	(21,062)	(20,619)
Net property, plant, and equipment	48,044	46,723
Other Noncurrent Assets
Regulatory assets	7,130	7,029
Nuclear decommissioning trusts	2,516	2,470
Income taxes receivable	153	135
Other	1,173	1,064
Total other noncurrent assets	10,972	10,698
TOTAL ASSETS	64,650	63,234
Current Liabilities
Short-term borrowings	693	1,019
Long-term debt, classified as current	160	160
Accounts payable
Trade creditors	1,062	1,414
Regulatory balancing accounts	704	715
Other	598	398
Disputed claims and customer refunds	457	454
Interest payable	145	206
Other	2,155	1,997
Total current liabilities	5,974	6,363
Noncurrent Liabilities
Long-term debt	16,522	15,925
Regulatory liabilities	6,486	6,321
Pension and other postretirement benefits	2,629	2,622
Asset retirement obligations	4,480	3,643
Deferred income taxes	9,323	9,206
Other	2,372	2,326
Total noncurrent liabilities	$ 41,812	$ 40,043
Commitments and Contingencies (Note 9)
Shareholders' Equity
Common stock	$ 11,440	$ 11,282
Reinvested earnings	5,179	5,301
Accumulated other comprehensive income (loss)	(7)	(7)
Total shareholders' equity	16,612	16,576
Noncontrolling Interest - Preferred Stock of Subsidiary	252	252
Total equity	16,864	16,828
TOTAL LIABILITIES AND EQUITY	64,650	63,234
Pacific Gas And Electric Company [Member]
Current Assets
Cash and cash equivalents	44	59
Restricted cash	234	234
Accounts receivable
Customers (net of allowance for doubtful accounts of $55 and $54 at respective dates)	1,010	1,106
Accrued unbilled revenue	685	855
Regulatory balancing accounts	1,721	1,760
Other	353	284
Regulatory assets	504	517
Inventories
Gas stored underground and fuel oil	109	126
Materials and supplies	344	313
Income taxes receivable	204	130
Other	327	338
Total current assets	5,535	5,722
Property, Plant, and Equipment
Electric	49,974	48,532
Gas	16,982	16,749
Construction work in progress	2,148	2,059
Total property, plant, and equipment	69,104	67,340
Accumulated depreciation	(21,060)	(20,617)
Net property, plant, and equipment	48,044	46,723
Other Noncurrent Assets
Regulatory assets	7,130	7,029
Nuclear decommissioning trusts	2,516	2,470
Income taxes receivable	153	135
Other	1,061	958
Total other noncurrent assets	10,860	10,592
TOTAL ASSETS	64,439	63,037
Current Liabilities
Short-term borrowings	693	1,019
Long-term debt, classified as current	160	160
Accounts payable
Trade creditors	1,062	1,414
Regulatory balancing accounts	704	715
Other	646	418
Disputed claims and customer refunds	457	454
Interest payable	144	203
Other	1,906	1,750
Total current liabilities	5,772	6,133
Noncurrent Liabilities
Long-term debt	16,174	15,577
Regulatory liabilities	6,486	6,321
Pension and other postretirement benefits	2,540	2,534
Asset retirement obligations	4,480	3,643
Deferred income taxes	9,605	9,487
Other	2,331	2,282
Total noncurrent liabilities	$ 41,616	$ 39,844
Commitments and Contingencies (Note 9)
Shareholders' Equity
Preferred stock	$ 258	$ 258
Common stock	1,322	1,322
Additional paid-in capital	7,280	7,215
Reinvested earnings	8,188	8,262
Accumulated other comprehensive income (loss)	3	3
Total shareholders' equity	17,051	17,060
TOTAL LIABILITIES AND EQUITY	$ 64,439	$ 63,037