Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 191	$ 177
Restricted cash	7	7
Accounts receivable
Customers (net of allowance for doubtful accounts of $58 at both periods)	1,368	1,252
Accrued unbilled revenue	972	1,098
Regulatory balancing accounts	1,478	1,500
Other	992	801
Regulatory assets	573	423
Inventories
Gas stored underground and fuel oil	138	117
Materials and supplies	360	346
Income taxes receivable	25	160
Other	279	283
Total current assets	6,383	6,164
Property, Plant, and Equipment
Electric	54,148	52,556
Gas	18,938	17,853
Construction work in progress	2,421	2,184
Other	2	2
Total property, plant, and equipment	75,509	72,595
Accumulated depreciation	(22,986)	(22,014)
Net property, plant, and equipment	52,523	50,581
Other Noncurrent Assets
Regulatory assets	8,546	7,951
Nuclear decommissioning trusts	2,793	2,606
Income taxes receivable	52	70
Other	1,229	1,226
Total other noncurrent assets	12,620	11,853
TOTAL ASSETS	71,526	68,598
Current Liabilities
Short-term borrowings	869	1,516
Long-term debt, classified as current	700	700
Accounts payable
Trade creditors	1,419	1,495
Regulatory balancing accounts	1,328	645
Other	483	433
Disputed claims and customer refunds	240	236
Interest payable	163	216
Other	2,271	2,323
Total current liabilities	7,473	7,564
Noncurrent Liabilities
Long-term debt	16,619	16,220
Regulatory liabilities	7,265	6,805
Pension and other postretirement benefits	2,707	2,641
Asset retirement obligations	4,758	4,684
Deferred income taxes	11,085	10,213
Other	2,333	2,279
Total noncurrent liabilities	44,767	42,842
Commitments and Contingencies (Note 9)
Shareholders' Equity
Common stock	12,560	12,198
Reinvested earnings	6,482	5,751
Accumulated other comprehensive income (loss)	(8)	(9)
Total shareholders' equity	19,034	17,940
Noncontrolling Interest - Preferred Stock of Subsidiary	252	252
Total equity	19,286	18,192
TOTAL LIABILITIES AND EQUITY	71,526	68,598
Pacific Gas And Electric Company [Member]
Current Assets
Cash and cash equivalents	70	71
Restricted cash	7	7
Accounts receivable
Customers (net of allowance for doubtful accounts of $58 at both periods)	1,368	1,252
Accrued unbilled revenue	972	1,098
Regulatory balancing accounts	1,478	1,500
Other	992	801
Regulatory assets	573	423
Inventories
Gas stored underground and fuel oil	138	117
Materials and supplies	360	346
Income taxes receivable	24	159
Other	279	282
Total current assets	6,261	6,056
Property, Plant, and Equipment
Electric	54,148	52,556
Gas	18,938	17,853
Construction work in progress	2,421	2,184
Total property, plant, and equipment	75,507	72,593
Accumulated depreciation	(22,984)	(22,012)
Net property, plant, and equipment	52,523	50,581
Other Noncurrent Assets
Regulatory assets	8,546	7,951
Nuclear decommissioning trusts	2,793	2,606
Income taxes receivable	52	70
Other	1,104	1,110
Total other noncurrent assets	12,495	11,737
TOTAL ASSETS	71,279	68,374
Current Liabilities
Short-term borrowings	869	1,516
Long-term debt, classified as current	700	700
Accounts payable
Trade creditors	1,419	1,494
Regulatory balancing accounts	1,328	645
Other	502	453
Disputed claims and customer refunds	240	236
Interest payable	163	214
Other	1,999	2,072
Total current liabilities	7,220	7,330
Noncurrent Liabilities
Long-term debt	16,270	15,872
Regulatory liabilities	7,265	6,805
Pension and other postretirement benefits	2,612	2,548
Asset retirement obligations	4,758	4,684
Deferred income taxes	11,377	10,510
Other	2,279	2,230
Total noncurrent liabilities	44,561	42,649
Commitments and Contingencies (Note 9)
Shareholders' Equity
Preferred stock	258	258
Common stock	1,322	1,322
Additional paid-in capital	8,455	8,050
Reinvested earnings	9,460	8,763
Accumulated other comprehensive income (loss)	3	2
Total shareholders' equity	19,498	18,395
TOTAL LIABILITIES AND EQUITY	$ 71,279	$ 68,374