Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Preferred stock SCE	Preferred stock	Common Stock, Including APIC	Common stock SCE	Additional Paid-in Capital SCE	Accumulated Other Comprehensive Loss SCE	Accumulated Other Comprehensive Loss	Retained Earnings SCE	Retained Earnings	Equity Attributable to Common Shareholders	Noncontrolling Interest	SCE	Total
Beginning balance at Dec. 31, 2020	$ 1,945		$ 5,962	$ 2,168	$ 5,387	$ (41)	$ (69)	$ 9,191	$ 8,155	$ 14,048	$ 1,901	$ 18,650	$ 15,949
Increase (decrease) in Stockholders' Equity
Net income								935	819	819	106	935	925
Other comprehensive income (loss)						9	15			15		9	15
Capital contribution from Edison International Parent					1,633							1,633
Common stock issued			71							71			71
Preference stock issued, net of issuance cost		$ 1,977								1,977			1,977
Common stock dividends declared								(1,300)	(1,021)	(1,021)		(1,300)	(1,021)
Preferred stock dividend declared								(106)	(60)	(60)		(106)	(60)
Dividends to noncontrolling interests											(106)		(106)
Stock-based compensation					(7)							(7)
Noncash stock-based compensation			38		20			1	1	39		21	39
Ending Balance at Dec. 31, 2021	1,945	1,977	6,071	2,168	7,033	(32)	(54)	8,721	7,894	15,888	1,901	19,835	17,789
Increase (decrease) in Stockholders' Equity
Net income								954	717	717	107	954	824
Other comprehensive income (loss)						24	43			43		24	43
Capital contribution from Edison International Parent					1,400							1,400
Common stock issued			87							87			87
Common stock dividends declared								(1,325)	(1,083)	(1,083)		(1,325)	(1,083)
Preferred stock dividend declared								(107)	(74)	(74)		(107)	(74)
Dividends to noncontrolling interests											(107)		(107)
Stock-based compensation					(14)							(14)
Noncash stock-based compensation			42		22					42		22	42
Other		1								1			1
Ending Balance at Dec. 31, 2022	1,945	1,978	6,200	2,168	8,441	(8)	(11)	8,243	7,454	15,621	1,901	20,789	17,522
Increase (decrease) in Stockholders' Equity
Net income								1,597	1,284	1,284	123	1,597	1,407
Other comprehensive income (loss)						(4)	2			2		(4)	2
Common stock issued			92							92			92
Preference stock issued, net of issuance cost	550				(8)						542	542	542
Common stock dividends declared								(1,410)	(1,147)	(1,147)		(1,410)	(1,147)
Preferred stock dividend declared								(123)	(108)	(108)		(123)	(108)
Dividends to noncontrolling interests											(123)		(123)
Stock-based compensation					(13)							(13)
Noncash stock-based compensation			46		26					46		26	46
Preferred stock repurchased		(305)							16	(289)			(289)
Ending Balance at Dec. 31, 2023	$ 2,495	$ 1,673	$ 6,338	$ 2,168	$ 8,446	$ (12)	$ (9)	$ 8,307	$ 7,499	$ 15,501	$ 2,443	$ 21,404	$ 17,944