Consolidated Statements Of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Revenues
Electric	$ 13,658	$ 12,494	$ 12,019
Natural gas	3,432	3,104	3,021
Total operating revenues	17,090	15,598	15,040
Operating Expenses
Cost of electricity	5,615	5,016	4,162
Cost of natural gas	954	968	861
Operating and maintenance	5,638	5,775	6,052
Depreciation, amortization, and decommissioning	2,433	2,077	2,272
Total operating expenses	14,640	13,836	13,347
Operating Income	2,450	1,762	1,693
Interest income	9	9	7
Interest expense	(734)	(715)	(703)
Other income, net	70	40	70
Income Before Income Taxes	1,795	1,096	1,067
Income tax benefit	345	268	237
Net Income	1,450	828	830
Preferred stock dividend requirement of subsidiary	14	14	14
Preferred stock dividend requirement	14	14	14
Income Available for Common Shareholders	1,436	814	816
Weighted Average Common Shares Outstanding, Basic	468	444	424
Weighted Average Common Shares Outstanding, Diluted	470	445	425
Net earnings per common share, basic	$ 3.07	$ 1.83	$ 1.92
Net Earnings Per Common Share, Diluted	$ 3.06	$ 1.83	$ 1.92
Pacific Gas And Electric Company [Member]
Operating Revenues
Electric	13,656	12,489	12,014
Natural gas	3,432	3,104	3,021
Total operating revenues	17,088	15,593	15,035
Operating Expenses
Cost of electricity	5,615	5,016	4,162
Cost of natural gas	954	968	861
Operating and maintenance	5,635	5,742	6,045
Depreciation, amortization, and decommissioning	2,432	2,077	2,272
Total operating expenses	14,636	13,803	13,340
Operating Income	2,452	1,790	1,695
Interest income	8	8	6
Interest expense	(720)	(690)	(680)
Other income, net	77	84	88
Income Before Income Taxes	1,817	1,192	1,109
Income tax benefit	384	326	298
Net Income	1,433	866	811
Preferred stock dividend requirement	14	14	14
Income Available for Common Shareholders	$ 1,419	$ 852	$ 797