Income Taxes (Schedule Of Income Tax Provision) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current, Federal	$ (89)	$ (84)	$ (218)
Current, State	11	(41)	(26)
Deferred, Federal	131	396	552
Deferred, State	(76)	78	(35)
Tax credits	(4)	(4)	(5)
Income Tax Provision	(27)	345	268
Pacific Gas And Electric Company [Member]
Current, Federal	(88)	(84)	(222)
Current, State	6	(29)	(23)
Deferred, Federal	136	426	604
Deferred, State	(69)	75	(28)
Tax credits	(4)	(4)	(5)
Income Tax Provision	(19)	384	326
PG&E Corporation [Member]
Income Tax Provision	$ 3	$ 39	$ 48