CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME, UTILITY - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net Income (Loss)	$ 2,256	$ 1,814	$ (88)
Other Comprehensive Income (Loss)
Pension and other postretirement benefit plans obligations (net of taxes of $5, $2, and $1, at respective dates)	(16)	21	7
Net unrealized losses on available-for-sale securities (net of taxes of $4, $3, and $0, respectively)	8	(6)	0
Total other comprehensive income (loss)	(8)	15	7
Comprehensive Income (Loss)	2,248	1,829	(81)
Pacific Gas & Electric Co (Utility)
Net Income (Loss)	2,544	2,226	138
Other Comprehensive Income (Loss)
Pension and other postretirement benefit plans obligations (net of taxes of $5, $2, and $1, at respective dates)	(12)	6	(4)
Net unrealized losses on available-for-sale securities (net of taxes of $4, $3, and $0, respectively)	7	(5)	0
Total other comprehensive income (loss)	(5)	1	(4)
Comprehensive Income (Loss)	$ 2,539	$ 2,227	$ 134