SCHEDULE I – CONSOLIDATED FINANCIAL INFORMATION OF PARENT (Schedule of Condensed Income Statement and Comprehensive Income) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating expenses	$ (19,960)	$ (21,757)	$ (19,843)
Interest income	604	606	162
Interest expense	(3,051)	(2,850)	(1,917)
Other income, net	300	272	394
Income tax benefit	(200)	(1,557)	(1,338)
Net Income	2,512	2,256	1,814
Preferred Stock Dividends and Other Adjustments	37	14	14
Income Available for Common Shareholders	2,475	2,242	1,800
Income Available for Common Shareholders	2,475	2,242	1,800
Other Comprehensive Income (Loss)
Pension and other postretirement benefit plans obligations, tax	3	6	8
Pension and other postretirement benefit plans obligations (net of taxes of $3, $6, and $8, at respective dates)	(7)	(16)	21
Net unrealized gain on available-for-sale securities	0	3	3
Net unrealized gain (losses) on available-for-sale securities (net of taxes of $0, $3, and $3, respectively)	1	8	(6)
Total other comprehensive income (loss)	$ (6)	$ (8)	$ 15
Weighted Average Common Shares Outstanding, Basic (in shares)	2,141	2,064	1,987
Weighted Average Common Shares Outstanding, Diluted (in shares)	2,147	2,138	2,132
Net earnings (loss) per common share, basic (in dollars per share)	$ 1.16	$ 1.09	$ 0.91
Net earnings (loss) per common share, diluted (in dollars per share)	$ 1.15	$ 1.05	$ 0.84
PG&E Corporation
Operating expenses	$ (167)	$ (165)	$ (193)
Interest income	15	13	3
Interest expense	(270)	(365)	(261)
Other income, net	(17)	(21)	(201)
Equity in earnings of subsidiaries	2,697	2,530	2,154
Income Before Income Taxes	2,404	2,146	1,611
Income tax benefit	(94)	(96)	(132)
Net Income	2,498	2,242	1,743
Preferred Stock Dividends and Other Adjustments	23	0	0
Income Available for Common Shareholders	2,475	2,242	1,743
Income Available for Common Shareholders	2,475	2,242	1,743
Other Comprehensive Income (Loss)
Pension and other postretirement benefit plans obligations, tax	3	6	8
Pension and other postretirement benefit plans obligations (net of taxes of $3, $6, and $8, at respective dates)	(7)	(16)	21
Net unrealized gain on available-for-sale securities	0
Net unrealized gain (losses) on available-for-sale securities (net of taxes of $0, $3, and $3, respectively)	1	0	0
Total other comprehensive income (loss)	(6)	(16)	21
Comprehensive Income	$ 2,469	$ 2,226	$ 1,764
Weighted Average Common Shares Outstanding, Basic (in shares)	2,141	2,064	2,235
Weighted Average Common Shares Outstanding, Diluted (in shares)	2,147	2,138	2,380
Net earnings (loss) per common share, basic (in dollars per share)	$ 1.16	$ 1.09	$ 0.78
Net earnings (loss) per common share, diluted (in dollars per share)	$ 1.15	$ 1.05	$ 0.73
PG&E Corporation | Administrative service revenue
Administrative service revenue	$ 146	$ 154	$ 109