Condensed Consolidated Statements Of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Operating Revenues
Electric	$ 3,233	$ 3,059	$ 6,234	$ 5,858
Natural gas	719	717	1,609	1,590
Total operating revenues	3,952	3,776	7,843	7,448
Operating Expenses
Cost of electricity	1,349	1,189	2,559	2,172
Cost of natural gas	200	179	560	525
Operating and maintenance	1,328	1,256	2,627	2,594
Depreciation, amortization, and decommissioning	557	516	1,095	1,019
Total operating expenses	3,434	3,140	6,841	6,310
Operating Income	518	636	1,002	1,138
Interest income	2	2	5	4
Interest expense	(188)	(177)	(373)	(353)
Other income, net	43	24	62	52
Income Before Income Taxes	375	485	696	841
Income tax provision	104	153	195	267
Net Income	271	332	501	574
Preferred stock dividend requirement of subsidiary	4	4	7	7
Income Available for Common Shareholders	267	328	494	567
Weighted Average Common Shares Outstanding, Basic	467	442	463	438
Weighted Average Common Shares Outstanding, Diluted	469	443	465	439
Net Earnings Per Common Share, Basic	$ 0.57	$ 0.74	$ 1.07	$ 1.29
Net Earnings Per Common Share, Diluted	$ 0.57	$ 0.74	$ 1.06	$ 1.29
Dividends Declared Per Common Share	$ 0.46	$ 0.46	$ 0.91	$ 0.91
Pacific Gas And Electric Company [Member]
Operating Revenues
Electric	3,232	3,057	6,232	5,855
Natural gas	719	718	1,609	1,591
Total operating revenues	3,951	3,775	7,841	7,446
Operating Expenses
Cost of electricity	1,349	1,189	2,559	2,172
Cost of natural gas	200	179	560	525
Operating and maintenance	1,321	1,256	2,618	2,592
Depreciation, amortization, and decommissioning	556	516	1,094	1,019
Total operating expenses	3,426	3,140	6,831	6,308
Operating Income	525	635	1,010	1,138
Interest income	3	3	5	4
Interest expense	(185)	(171)	(364)	(341)
Other income, net	17	22	37	46
Income Before Income Taxes	360	489	688	847
Income tax provision	110	160	210	281
Net Income	250	329	478	566
Preferred stock dividend requirement	4	4	7	7
Income Available for Common Shareholders	$ 246	$ 325	$ 471	$ 559