Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net income	$ 1,407	$ 888	$ 1,450
Other Comprehensive Income
Pension and other postretirement benefit plans obligations (related to PG&E Corporation net of income tax of $1, $0 and $10 and related to the Utility of $1, $1, and $6, at respective dates)	(2)	(1)	(14)
Net change in investments (net of taxes $0, $12, and $17, at respective dates)	0	(17)	(25)
Total other comprehensive income (loss)	(2)	(18)	(39)
Comprehensive Income	1,405	870	1,411
Preferred stock dividend requirement of subsidiary	14	14	14
Comprehensive Income Attributable to Common Shareholders	1,391	856	1,397
Pacific Gas And Electric Company [Member]
Net income	1,402	862	1,433
Other Comprehensive Income
Pension and other postretirement benefit plans obligations (related to PG&E Corporation net of income tax of $1, $0 and $10 and related to the Utility of $1, $1, and $6, at respective dates)	(1)	(2)	(8)
Total other comprehensive income (loss)	(1)	(2)	(8)
Comprehensive Income	$ 1,401	$ 860	$ 1,425