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, 2019	$ 2,245		$ 4,990	$ 2,168	$ 3,939	$ (39)	$ (69)	$ 9,514	$ 8,382	$ 13,303	$ 2,193	$ 17,827	$ 15,496
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income								942	739	739	132	942	871
Other comprehensive income						(2)						(2)
Capital contribution from Edison International Parent					1,432							1,432
Common stock issued, net of issuance cost			942							942			942
Common stock dividends declared								(1,132)	(965)	(965)		(1,132)	(965)
Preferred stock dividend declared								(117)				(117)
Dividends to noncontrolling interests											(117)		(117)
Stock-based compensation					(5)							(5)
Noncash stock-based compensation			30		14			(1)	(1)	29	1	13	30
Redemption of preferred and preference stock	(300)				7			(15)			(308)	(308)	(308)
Ending 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 [Roll Forward]
Net income								935	819	819	106	935	925
Other comprehensive income						9	15			15		9	15
Capital contribution from Edison International Parent					1,633							1,633
Common stock issued, net of issuance cost			71							71			71
Preferred 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
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
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
Beginning 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 [Roll Forward]
Net income								954	717	717	107	954	824
Other comprehensive income						24	43			43		24	43
Capital contribution from Edison International Parent					1,400							1,400
Common stock issued, net of issuance cost			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