Condensed Consolidated Statements of Changes in Equity - SCE (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026	Jun. 30, 2025
Increase (decrease) in Stockholders' Equity
Beginning balance		$ 17,579			$ 17,579
Net income	$ 534		$ 343		1,065	$ 1,779
Other comprehensive income	(3)		2		(3)	2
Dividends declared on common stock	(337)	(338)	(318)	$ (319)
Dividends declared on preference stock		(13)		(44)
Noncash stock-based compensation and other	18	11	$ 15	$ 10
Preference stock redeemed		$ (119)
Ending balance	$ 17,529				17,529
Dividends declared on common stock (in dollars per share)	$ 0.8775	$ 0.8775	$ 0.8275	$ 0.8275
SCE
Increase (decrease) in Stockholders' Equity
Beginning balance	$ 23,987	$ 23,930	$ 22,875	$ 21,751	23,930	21,751
Net income	669	648	476	1,601	1,317	2,077
Other comprehensive income	0	1	1		1	1
Dividends declared on common stock	(430)	(430)	(930)	(430)
Dividends declared on preference stock	(25)	(27)	(33)	(34)
Stock-based compensation	(2)	(22)		(20)
Noncash stock-based compensation and other	6	6	6	7
Preference stock redeemed		(119)
Ending balance	$ 24,205	$ 23,987	$ 22,395	$ 22,875	24,205	22,395
Dividends declared on common stock (in dollars per share)	$ 0.9888	$ 0.9888	$ 2.1385	$ 0.9888
SCE \| Minimum
Increase (decrease) in Stockholders' Equity
Dividends declared on preference stock (in dollars per share)	31.250	31.250	31.250	31.250
SCE \| Maximum
Increase (decrease) in Stockholders' Equity
Dividends declared on preference stock (in dollars per share)	$ 46.875	$ 46.875	$ 46.875	$ 46.875
Preferred stock \| SCE
Increase (decrease) in Stockholders' Equity
Beginning balance	$ 1,595	$ 1,714	$ 2,220	$ 2,220	1,714	2,220
Preference stock redeemed		(119)
Ending balance	1,595	1,595	2,220	2,220	1,595	2,220
Common stock
Increase (decrease) in Stockholders' Equity
Noncash stock-based compensation and other	20	10	15	10
Common stock \| SCE
Increase (decrease) in Stockholders' Equity
Beginning balance	2,168	2,168	2,168	2,168	2,168	2,168
Ending balance	2,168	2,168	2,168	2,168	2,168	2,168
Additional Paid-in Capital \| SCE
Increase (decrease) in Stockholders' Equity
Beginning balance	8,956	8,970	8,936	8,950	8,970	8,950
Stock-based compensation	(2)	(22)		(21)
Noncash stock-based compensation and other	7	5	7	7
Preference stock redeemed		3
Ending balance	8,961	8,956	8,943	8,936	8,961	8,943
Accumulated Other Comprehensive Loss
Increase (decrease) in Stockholders' Equity
Other comprehensive income	(3)		2
Accumulated Other Comprehensive Loss \| SCE
Increase (decrease) in Stockholders' Equity
Beginning balance	(11)	(12)	(9)	(9)	(12)	(9)
Other comprehensive income		1	1
Ending balance	(11)	(11)	(8)	(9)	(11)	(8)
Retained Earnings
Increase (decrease) in Stockholders' Equity
Dividends declared on common stock	(337)	(338)	(318)	(319)
Dividends declared on preference stock		(13)		(44)
Noncash stock-based compensation and other	(2)	1	0
Retained Earnings \| SCE
Increase (decrease) in Stockholders' Equity
Beginning balance	11,279	11,090	9,560	8,422	11,090	8,422
Net income	669	648	476	1,601
Dividends declared on common stock	(430)	(430)	(930)	(430)
Dividends declared on preference stock	(25)	(27)	(33)	(34)
Stock-based compensation				1
Noncash stock-based compensation and other	(1)	1	(1)
Preference stock redeemed		(3)
Ending balance	$ 11,492	$ 11,279	$ 9,072	$ 9,560	$ 11,492	$ 9,072

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