Consolidated Statements Of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Revenues
Electric	$ 13,657	$ 13,658	$ 12,494
Natural gas	3,176	3,432	3,104
Total operating revenues	16,833	17,090	15,598
Operating Expenses
Cost of electricity	5,099	5,615	5,016
Cost of natural gas	663	954	968
Operating and maintenance	6,951	5,638	5,775
Depreciation, amortization, and decommissioning	2,612	2,433	2,077
Total operating expenses	15,325	14,640	13,836
Operating Income	1,508	2,450	1,762
Interest income	9	9	9
Interest expense	(773)	(734)	(715)
Other income (expense)	117	70	40
Income Before Income Taxes	861	1,795	1,096
Income tax benefit	(27)	345	268
Net Income	888	1,450	828
Preferred stock dividend requirement of subsidiary	14	14	14
Income Available for Common Shareholders	$ 874	$ 1,436	$ 814
Weighted Average Common Shares Outstanding, Basic	484	468	444
Weighted Average Common Shares Outstanding, Diluted	487	470	445
Net earnings per common share, basic	$ 1.81	$ 3.07	$ 1.83
Net Earnings Per Common Share, Diluted	$ 1.79	$ 3.06	$ 1.83
Pacific Gas And Electric Company [Member]
Operating Revenues
Electric	$ 13,657	$ 13,656	$ 12,489
Natural gas	3,176	3,432	3,104
Total operating revenues	16,833	17,088	15,593
Operating Expenses
Cost of electricity	5,099	5,615	5,016
Cost of natural gas	663	954	968
Operating and maintenance	6,949	5,635	5,742
Depreciation, amortization, and decommissioning	2,611	2,432	2,077
Total operating expenses	15,322	14,636	13,803
Operating Income	1,511	2,452	1,790
Interest income	8	8	8
Interest expense	(763)	(720)	(690)
Other income (expense)	87	77	84
Income Before Income Taxes	843	1,817	1,192
Income tax benefit	(19)	384	326
Net Income	862	1,433	866
Preferred stock dividend requirement	14	14	14
Income Available for Common Shareholders	$ 848	$ 1,419	$ 852